1 | (function(){if (!Date.now) Date.now = function() { |
---|
2 | return +new Date; |
---|
3 | }; |
---|
4 | try { |
---|
5 | document.createElement("div").style.setProperty("opacity", 0, ""); |
---|
6 | } catch (error) { |
---|
7 | var d3_style_prototype = CSSStyleDeclaration.prototype, |
---|
8 | d3_style_setProperty = d3_style_prototype.setProperty; |
---|
9 | d3_style_prototype.setProperty = function(name, value, priority) { |
---|
10 | d3_style_setProperty.call(this, name, value + "", priority); |
---|
11 | }; |
---|
12 | } |
---|
13 | d3 = {version: "2.8.1"}; // semver |
---|
14 | function d3_class(ctor, properties) { |
---|
15 | try { |
---|
16 | for (var key in properties) { |
---|
17 | Object.defineProperty(ctor.prototype, key, { |
---|
18 | value: properties[key], |
---|
19 | enumerable: false |
---|
20 | }); |
---|
21 | } |
---|
22 | } catch (e) { |
---|
23 | ctor.prototype = properties; |
---|
24 | } |
---|
25 | } |
---|
26 | var d3_array = d3_arraySlice; // conversion for NodeLists |
---|
27 | |
---|
28 | function d3_arrayCopy(pseudoarray) { |
---|
29 | var i = -1, n = pseudoarray.length, array = []; |
---|
30 | while (++i < n) array.push(pseudoarray[i]); |
---|
31 | return array; |
---|
32 | } |
---|
33 | |
---|
34 | function d3_arraySlice(pseudoarray) { |
---|
35 | return Array.prototype.slice.call(pseudoarray); |
---|
36 | } |
---|
37 | |
---|
38 | try { |
---|
39 | d3_array(document.documentElement.childNodes)[0].nodeType; |
---|
40 | } catch(e) { |
---|
41 | d3_array = d3_arrayCopy; |
---|
42 | } |
---|
43 | |
---|
44 | var d3_arraySubclass = [].__proto__? |
---|
45 | |
---|
46 | // Until ECMAScript supports array subclassing, prototype injection works well. |
---|
47 | function(array, prototype) { |
---|
48 | array.__proto__ = prototype; |
---|
49 | }: |
---|
50 | |
---|
51 | // And if your browser doesn't support __proto__, we'll use direct extension. |
---|
52 | function(array, prototype) { |
---|
53 | for (var property in prototype) array[property] = prototype[property]; |
---|
54 | }; |
---|
55 | d3.map = function(object) { |
---|
56 | var map = new d3_Map; |
---|
57 | for (var key in object) map.set(key, object[key]); |
---|
58 | return map; |
---|
59 | }; |
---|
60 | |
---|
61 | function d3_Map() {} |
---|
62 | |
---|
63 | d3_class(d3_Map, { |
---|
64 | has: function(key) { |
---|
65 | return d3_map_prefix + key in this; |
---|
66 | }, |
---|
67 | get: function(key) { |
---|
68 | return this[d3_map_prefix + key]; |
---|
69 | }, |
---|
70 | set: function(key, value) { |
---|
71 | return this[d3_map_prefix + key] = value; |
---|
72 | }, |
---|
73 | remove: function(key) { |
---|
74 | key = d3_map_prefix + key; |
---|
75 | return key in this && delete this[key]; |
---|
76 | }, |
---|
77 | keys: function() { |
---|
78 | var keys = []; |
---|
79 | this.forEach(function(key) { keys.push(key); }); |
---|
80 | return keys; |
---|
81 | }, |
---|
82 | values: function() { |
---|
83 | var values = []; |
---|
84 | this.forEach(function(key, value) { values.push(value); }); |
---|
85 | return values; |
---|
86 | }, |
---|
87 | entries: function() { |
---|
88 | var entries = []; |
---|
89 | this.forEach(function(key, value) { entries.push({key: key, value: value}); }); |
---|
90 | return entries; |
---|
91 | }, |
---|
92 | forEach: function(f) { |
---|
93 | for (var key in this) { |
---|
94 | if (key.charCodeAt(0) === d3_map_prefixCode) { |
---|
95 | f.call(this, key.substring(1), this[key]); |
---|
96 | } |
---|
97 | } |
---|
98 | } |
---|
99 | }); |
---|
100 | |
---|
101 | var d3_map_prefix = "\0", // prevent collision with built-ins |
---|
102 | d3_map_prefixCode = d3_map_prefix.charCodeAt(0); |
---|
103 | function d3_this() { |
---|
104 | return this; |
---|
105 | } |
---|
106 | d3.functor = function(v) { |
---|
107 | return typeof v === "function" ? v : function() { return v; }; |
---|
108 | }; |
---|
109 | // Copies a variable number of methods from source to target. |
---|
110 | d3.rebind = function(target, source) { |
---|
111 | var i = 1, n = arguments.length, method; |
---|
112 | while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]); |
---|
113 | return target; |
---|
114 | }; |
---|
115 | |
---|
116 | // Method is assumed to be a standard D3 getter-setter: |
---|
117 | // If passed with no arguments, gets the value. |
---|
118 | // If passed with arguments, sets the value and returns the target. |
---|
119 | function d3_rebind(target, source, method) { |
---|
120 | return function() { |
---|
121 | var value = method.apply(source, arguments); |
---|
122 | return arguments.length ? target : value; |
---|
123 | }; |
---|
124 | } |
---|
125 | d3.ascending = function(a, b) { |
---|
126 | return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; |
---|
127 | }; |
---|
128 | d3.descending = function(a, b) { |
---|
129 | return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; |
---|
130 | }; |
---|
131 | d3.mean = function(array, f) { |
---|
132 | var n = array.length, |
---|
133 | a, |
---|
134 | m = 0, |
---|
135 | i = -1, |
---|
136 | j = 0; |
---|
137 | if (arguments.length === 1) { |
---|
138 | while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j; |
---|
139 | } else { |
---|
140 | while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j; |
---|
141 | } |
---|
142 | return j ? m : undefined; |
---|
143 | }; |
---|
144 | d3.median = function(array, f) { |
---|
145 | if (arguments.length > 1) array = array.map(f); |
---|
146 | array = array.filter(d3_number); |
---|
147 | return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined; |
---|
148 | }; |
---|
149 | d3.min = function(array, f) { |
---|
150 | var i = -1, |
---|
151 | n = array.length, |
---|
152 | a, |
---|
153 | b; |
---|
154 | if (arguments.length === 1) { |
---|
155 | while (++i < n && ((a = array[i]) == null || a != a)) a = undefined; |
---|
156 | while (++i < n) if ((b = array[i]) != null && a > b) a = b; |
---|
157 | } else { |
---|
158 | while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined; |
---|
159 | while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b; |
---|
160 | } |
---|
161 | return a; |
---|
162 | }; |
---|
163 | d3.max = function(array, f) { |
---|
164 | var i = -1, |
---|
165 | n = array.length, |
---|
166 | a, |
---|
167 | b; |
---|
168 | if (arguments.length === 1) { |
---|
169 | while (++i < n && ((a = array[i]) == null || a != a)) a = undefined; |
---|
170 | while (++i < n) if ((b = array[i]) != null && b > a) a = b; |
---|
171 | } else { |
---|
172 | while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined; |
---|
173 | while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b; |
---|
174 | } |
---|
175 | return a; |
---|
176 | }; |
---|
177 | d3.extent = function(array, f) { |
---|
178 | var i = -1, |
---|
179 | n = array.length, |
---|
180 | a, |
---|
181 | b, |
---|
182 | c; |
---|
183 | if (arguments.length === 1) { |
---|
184 | while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined; |
---|
185 | while (++i < n) if ((b = array[i]) != null) { |
---|
186 | if (a > b) a = b; |
---|
187 | if (c < b) c = b; |
---|
188 | } |
---|
189 | } else { |
---|
190 | while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined; |
---|
191 | while (++i < n) if ((b = f.call(array, array[i], i)) != null) { |
---|
192 | if (a > b) a = b; |
---|
193 | if (c < b) c = b; |
---|
194 | } |
---|
195 | } |
---|
196 | return [a, c]; |
---|
197 | }; |
---|
198 | d3.random = { |
---|
199 | normal: function(mean, deviation) { |
---|
200 | if (arguments.length < 2) deviation = 1; |
---|
201 | if (arguments.length < 1) mean = 0; |
---|
202 | return function() { |
---|
203 | var x, y, r; |
---|
204 | do { |
---|
205 | x = Math.random() * 2 - 1; |
---|
206 | y = Math.random() * 2 - 1; |
---|
207 | r = x * x + y * y; |
---|
208 | } while (!r || r > 1); |
---|
209 | return mean + deviation * x * Math.sqrt(-2 * Math.log(r) / r); |
---|
210 | }; |
---|
211 | } |
---|
212 | }; |
---|
213 | function d3_number(x) { |
---|
214 | return x != null && !isNaN(x); |
---|
215 | } |
---|
216 | d3.sum = function(array, f) { |
---|
217 | var s = 0, |
---|
218 | n = array.length, |
---|
219 | a, |
---|
220 | i = -1; |
---|
221 | |
---|
222 | if (arguments.length === 1) { |
---|
223 | while (++i < n) if (!isNaN(a = +array[i])) s += a; |
---|
224 | } else { |
---|
225 | while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a; |
---|
226 | } |
---|
227 | |
---|
228 | return s; |
---|
229 | }; |
---|
230 | // R-7 per <http://en.wikipedia.org/wiki/Quantile> |
---|
231 | d3.quantile = function(values, p) { |
---|
232 | var H = (values.length - 1) * p + 1, |
---|
233 | h = Math.floor(H), |
---|
234 | v = values[h - 1], |
---|
235 | e = H - h; |
---|
236 | return e ? v + e * (values[h] - v) : v; |
---|
237 | }; |
---|
238 | d3.transpose = function(matrix) { |
---|
239 | return d3.zip.apply(d3, matrix); |
---|
240 | }; |
---|
241 | d3.zip = function() { |
---|
242 | if (!(n = arguments.length)) return []; |
---|
243 | for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m;) { |
---|
244 | for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n;) { |
---|
245 | zip[j] = arguments[j][i]; |
---|
246 | } |
---|
247 | } |
---|
248 | return zips; |
---|
249 | }; |
---|
250 | |
---|
251 | function d3_zipLength(d) { |
---|
252 | return d.length; |
---|
253 | } |
---|
254 | d3.bisector = function(f) { |
---|
255 | return { |
---|
256 | left: function(a, x, lo, hi) { |
---|
257 | if (arguments.length < 3) lo = 0; |
---|
258 | if (arguments.length < 4) hi = a.length; |
---|
259 | while (lo < hi) { |
---|
260 | var mid = lo + hi >> 1; |
---|
261 | if (f.call(a, a[mid], mid) < x) lo = mid + 1; |
---|
262 | else hi = mid; |
---|
263 | } |
---|
264 | return lo; |
---|
265 | }, |
---|
266 | right: function(a, x, lo, hi) { |
---|
267 | if (arguments.length < 3) lo = 0; |
---|
268 | if (arguments.length < 4) hi = a.length; |
---|
269 | while (lo < hi) { |
---|
270 | var mid = lo + hi >> 1; |
---|
271 | if (x < f.call(a, a[mid], mid)) hi = mid; |
---|
272 | else lo = mid + 1; |
---|
273 | } |
---|
274 | return lo; |
---|
275 | } |
---|
276 | }; |
---|
277 | }; |
---|
278 | |
---|
279 | var d3_bisector = d3.bisector(function(d) { return d; }); |
---|
280 | d3.bisectLeft = d3_bisector.left; |
---|
281 | d3.bisect = d3.bisectRight = d3_bisector.right; |
---|
282 | d3.first = function(array, f) { |
---|
283 | var i = 0, |
---|
284 | n = array.length, |
---|
285 | a = array[0], |
---|
286 | b; |
---|
287 | if (arguments.length === 1) f = d3.ascending; |
---|
288 | while (++i < n) { |
---|
289 | if (f.call(array, a, b = array[i]) > 0) { |
---|
290 | a = b; |
---|
291 | } |
---|
292 | } |
---|
293 | return a; |
---|
294 | }; |
---|
295 | d3.last = function(array, f) { |
---|
296 | var i = 0, |
---|
297 | n = array.length, |
---|
298 | a = array[0], |
---|
299 | b; |
---|
300 | if (arguments.length === 1) f = d3.ascending; |
---|
301 | while (++i < n) { |
---|
302 | if (f.call(array, a, b = array[i]) <= 0) { |
---|
303 | a = b; |
---|
304 | } |
---|
305 | } |
---|
306 | return a; |
---|
307 | }; |
---|
308 | d3.nest = function() { |
---|
309 | var nest = {}, |
---|
310 | keys = [], |
---|
311 | sortKeys = [], |
---|
312 | sortValues, |
---|
313 | rollup; |
---|
314 | |
---|
315 | function map(array, depth) { |
---|
316 | if (depth >= keys.length) return rollup |
---|
317 | ? rollup.call(nest, array) : (sortValues |
---|
318 | ? array.sort(sortValues) |
---|
319 | : array); |
---|
320 | |
---|
321 | var i = -1, |
---|
322 | n = array.length, |
---|
323 | key = keys[depth++], |
---|
324 | keyValue, |
---|
325 | object, |
---|
326 | valuesByKey = new d3_Map, |
---|
327 | values, |
---|
328 | o = {}; |
---|
329 | |
---|
330 | while (++i < n) { |
---|
331 | if (values = valuesByKey.get(keyValue = key(object = array[i]))) { |
---|
332 | values.push(object); |
---|
333 | } else { |
---|
334 | valuesByKey.set(keyValue, [object]); |
---|
335 | } |
---|
336 | } |
---|
337 | |
---|
338 | valuesByKey.forEach(function(keyValue) { |
---|
339 | o[keyValue] = map(valuesByKey.get(keyValue), depth); |
---|
340 | }); |
---|
341 | |
---|
342 | return o; |
---|
343 | } |
---|
344 | |
---|
345 | function entries(map, depth) { |
---|
346 | if (depth >= keys.length) return map; |
---|
347 | |
---|
348 | var a = [], |
---|
349 | sortKey = sortKeys[depth++], |
---|
350 | key; |
---|
351 | |
---|
352 | for (key in map) { |
---|
353 | a.push({key: key, values: entries(map[key], depth)}); |
---|
354 | } |
---|
355 | |
---|
356 | if (sortKey) a.sort(function(a, b) { |
---|
357 | return sortKey(a.key, b.key); |
---|
358 | }); |
---|
359 | |
---|
360 | return a; |
---|
361 | } |
---|
362 | |
---|
363 | nest.map = function(array) { |
---|
364 | return map(array, 0); |
---|
365 | }; |
---|
366 | |
---|
367 | nest.entries = function(array) { |
---|
368 | return entries(map(array, 0), 0); |
---|
369 | }; |
---|
370 | |
---|
371 | nest.key = function(d) { |
---|
372 | keys.push(d); |
---|
373 | return nest; |
---|
374 | }; |
---|
375 | |
---|
376 | // Specifies the order for the most-recently specified key. |
---|
377 | // Note: only applies to entries. Map keys are unordered! |
---|
378 | nest.sortKeys = function(order) { |
---|
379 | sortKeys[keys.length - 1] = order; |
---|
380 | return nest; |
---|
381 | }; |
---|
382 | |
---|
383 | // Specifies the order for leaf values. |
---|
384 | // Applies to both maps and entries array. |
---|
385 | nest.sortValues = function(order) { |
---|
386 | sortValues = order; |
---|
387 | return nest; |
---|
388 | }; |
---|
389 | |
---|
390 | nest.rollup = function(f) { |
---|
391 | rollup = f; |
---|
392 | return nest; |
---|
393 | }; |
---|
394 | |
---|
395 | return nest; |
---|
396 | }; |
---|
397 | d3.keys = function(map) { |
---|
398 | var keys = []; |
---|
399 | for (var key in map) keys.push(key); |
---|
400 | return keys; |
---|
401 | }; |
---|
402 | d3.values = function(map) { |
---|
403 | var values = []; |
---|
404 | for (var key in map) values.push(map[key]); |
---|
405 | return values; |
---|
406 | }; |
---|
407 | d3.entries = function(map) { |
---|
408 | var entries = []; |
---|
409 | for (var key in map) entries.push({key: key, value: map[key]}); |
---|
410 | return entries; |
---|
411 | }; |
---|
412 | d3.permute = function(array, indexes) { |
---|
413 | var permutes = [], |
---|
414 | i = -1, |
---|
415 | n = indexes.length; |
---|
416 | while (++i < n) permutes[i] = array[indexes[i]]; |
---|
417 | return permutes; |
---|
418 | }; |
---|
419 | d3.merge = function(arrays) { |
---|
420 | return Array.prototype.concat.apply([], arrays); |
---|
421 | }; |
---|
422 | d3.split = function(array, f) { |
---|
423 | var arrays = [], |
---|
424 | values = [], |
---|
425 | value, |
---|
426 | i = -1, |
---|
427 | n = array.length; |
---|
428 | if (arguments.length < 2) f = d3_splitter; |
---|
429 | while (++i < n) { |
---|
430 | if (f.call(values, value = array[i], i)) { |
---|
431 | values = []; |
---|
432 | } else { |
---|
433 | if (!values.length) arrays.push(values); |
---|
434 | values.push(value); |
---|
435 | } |
---|
436 | } |
---|
437 | return arrays; |
---|
438 | }; |
---|
439 | |
---|
440 | function d3_splitter(d) { |
---|
441 | return d == null; |
---|
442 | } |
---|
443 | function d3_collapse(s) { |
---|
444 | return s.replace(/(^\s+)|(\s+$)/g, "").replace(/\s+/g, " "); |
---|
445 | } |
---|
446 | d3.range = function(start, stop, step) { |
---|
447 | if (arguments.length < 3) { |
---|
448 | step = 1; |
---|
449 | if (arguments.length < 2) { |
---|
450 | stop = start; |
---|
451 | start = 0; |
---|
452 | } |
---|
453 | } |
---|
454 | if ((stop - start) / step === Infinity) throw new Error("infinite range"); |
---|
455 | var range = [], |
---|
456 | k = d3_range_integerScale(Math.abs(step)), |
---|
457 | i = -1, |
---|
458 | j; |
---|
459 | start *= k, stop *= k, step *= k; |
---|
460 | if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); |
---|
461 | else while ((j = start + step * ++i) < stop) range.push(j / k); |
---|
462 | return range; |
---|
463 | }; |
---|
464 | |
---|
465 | function d3_range_integerScale(x) { |
---|
466 | var k = 1; |
---|
467 | while (x * k % 1) k *= 10; |
---|
468 | return k; |
---|
469 | } |
---|
470 | d3.requote = function(s) { |
---|
471 | return s.replace(d3_requote_re, "\\$&"); |
---|
472 | }; |
---|
473 | |
---|
474 | var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g; |
---|
475 | d3.round = function(x, n) { |
---|
476 | return n |
---|
477 | ? Math.round(x * (n = Math.pow(10, n))) / n |
---|
478 | : Math.round(x); |
---|
479 | }; |
---|
480 | d3.xhr = function(url, mime, callback) { |
---|
481 | var req = new XMLHttpRequest; |
---|
482 | if (arguments.length < 3) callback = mime, mime = null; |
---|
483 | else if (mime && req.overrideMimeType) req.overrideMimeType(mime); |
---|
484 | req.open("GET", url, true); |
---|
485 | if (mime) req.setRequestHeader("Accept", mime); |
---|
486 | req.onreadystatechange = function() { |
---|
487 | if (req.readyState === 4) callback(req.status < 300 ? req : null); |
---|
488 | }; |
---|
489 | req.send(null); |
---|
490 | }; |
---|
491 | d3.text = function(url, mime, callback) { |
---|
492 | function ready(req) { |
---|
493 | callback(req && req.responseText); |
---|
494 | } |
---|
495 | if (arguments.length < 3) { |
---|
496 | callback = mime; |
---|
497 | mime = null; |
---|
498 | } |
---|
499 | d3.xhr(url, mime, ready); |
---|
500 | }; |
---|
501 | d3.json = function(url, callback) { |
---|
502 | d3.text(url, "application/json", function(text) { |
---|
503 | callback(text ? JSON.parse(text) : null); |
---|
504 | }); |
---|
505 | }; |
---|
506 | d3.html = function(url, callback) { |
---|
507 | d3.text(url, "text/html", function(text) { |
---|
508 | if (text != null) { // Treat empty string as valid HTML. |
---|
509 | var range = document.createRange(); |
---|
510 | range.selectNode(document.body); |
---|
511 | text = range.createContextualFragment(text); |
---|
512 | } |
---|
513 | callback(text); |
---|
514 | }); |
---|
515 | }; |
---|
516 | d3.xml = function(url, mime, callback) { |
---|
517 | function ready(req) { |
---|
518 | callback(req && req.responseXML); |
---|
519 | } |
---|
520 | if (arguments.length < 3) { |
---|
521 | callback = mime; |
---|
522 | mime = null; |
---|
523 | } |
---|
524 | d3.xhr(url, mime, ready); |
---|
525 | }; |
---|
526 | var d3_nsPrefix = { |
---|
527 | svg: "http://www.w3.org/2000/svg", |
---|
528 | xhtml: "http://www.w3.org/1999/xhtml", |
---|
529 | xlink: "http://www.w3.org/1999/xlink", |
---|
530 | xml: "http://www.w3.org/XML/1998/namespace", |
---|
531 | xmlns: "http://www.w3.org/2000/xmlns/" |
---|
532 | }; |
---|
533 | |
---|
534 | d3.ns = { |
---|
535 | prefix: d3_nsPrefix, |
---|
536 | qualify: function(name) { |
---|
537 | var i = name.indexOf(":"), |
---|
538 | prefix = name; |
---|
539 | if (i >= 0) { |
---|
540 | prefix = name.substring(0, i); |
---|
541 | name = name.substring(i + 1); |
---|
542 | } |
---|
543 | return d3_nsPrefix.hasOwnProperty(prefix) |
---|
544 | ? {space: d3_nsPrefix[prefix], local: name} |
---|
545 | : name; |
---|
546 | } |
---|
547 | }; |
---|
548 | d3.dispatch = function() { |
---|
549 | var dispatch = new d3_dispatch, |
---|
550 | i = -1, |
---|
551 | n = arguments.length; |
---|
552 | while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch); |
---|
553 | return dispatch; |
---|
554 | }; |
---|
555 | |
---|
556 | function d3_dispatch() {} |
---|
557 | |
---|
558 | d3_dispatch.prototype.on = function(type, listener) { |
---|
559 | var i = type.indexOf("."), |
---|
560 | name = ""; |
---|
561 | |
---|
562 | // Extract optional namespace, e.g., "click.foo" |
---|
563 | if (i > 0) { |
---|
564 | name = type.substring(i + 1); |
---|
565 | type = type.substring(0, i); |
---|
566 | } |
---|
567 | |
---|
568 | return arguments.length < 2 |
---|
569 | ? this[type].on(name) |
---|
570 | : this[type].on(name, listener); |
---|
571 | }; |
---|
572 | |
---|
573 | function d3_dispatch_event(dispatch) { |
---|
574 | var listeners = [], |
---|
575 | listenerByName = new d3_Map; |
---|
576 | |
---|
577 | function event() { |
---|
578 | var z = listeners, // defensive reference |
---|
579 | i = -1, |
---|
580 | n = z.length, |
---|
581 | l; |
---|
582 | while (++i < n) if (l = z[i].on) l.apply(this, arguments); |
---|
583 | return dispatch; |
---|
584 | } |
---|
585 | |
---|
586 | event.on = function(name, listener) { |
---|
587 | var l = listenerByName.get(name), |
---|
588 | i; |
---|
589 | |
---|
590 | // return the current listener, if any |
---|
591 | if (arguments.length < 2) return l && l.on; |
---|
592 | |
---|
593 | // remove the old listener, if any (with copy-on-write) |
---|
594 | if (l) { |
---|
595 | l.on = null; |
---|
596 | listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1)); |
---|
597 | listenerByName.remove(name); |
---|
598 | } |
---|
599 | |
---|
600 | // add the new listener, if any |
---|
601 | if (listener) listeners.push(listenerByName.set(name, {on: listener})); |
---|
602 | |
---|
603 | return dispatch; |
---|
604 | }; |
---|
605 | |
---|
606 | return event; |
---|
607 | } |
---|
608 | // TODO align |
---|
609 | d3.format = function(specifier) { |
---|
610 | var match = d3_format_re.exec(specifier), |
---|
611 | fill = match[1] || " ", |
---|
612 | sign = match[3] || "", |
---|
613 | zfill = match[5], |
---|
614 | width = +match[6], |
---|
615 | comma = match[7], |
---|
616 | precision = match[8], |
---|
617 | type = match[9], |
---|
618 | scale = 1, |
---|
619 | suffix = "", |
---|
620 | integer = false; |
---|
621 | |
---|
622 | if (precision) precision = +precision.substring(1); |
---|
623 | |
---|
624 | if (zfill) { |
---|
625 | fill = "0"; // TODO align = "="; |
---|
626 | if (comma) width -= Math.floor((width - 1) / 4); |
---|
627 | } |
---|
628 | |
---|
629 | switch (type) { |
---|
630 | case "n": comma = true; type = "g"; break; |
---|
631 | case "%": scale = 100; suffix = "%"; type = "f"; break; |
---|
632 | case "p": scale = 100; suffix = "%"; type = "r"; break; |
---|
633 | case "d": integer = true; precision = 0; break; |
---|
634 | case "s": scale = -1; type = "r"; break; |
---|
635 | } |
---|
636 | |
---|
637 | // If no precision is specified for r, fallback to general notation. |
---|
638 | if (type == "r" && !precision) type = "g"; |
---|
639 | |
---|
640 | type = d3_format_types.get(type) || d3_format_typeDefault; |
---|
641 | |
---|
642 | return function(value) { |
---|
643 | |
---|
644 | // Return the empty string for floats formatted as ints. |
---|
645 | if (integer && (value % 1)) return ""; |
---|
646 | |
---|
647 | // Convert negative to positive, and record the sign prefix. |
---|
648 | var negative = (value < 0) && (value = -value) ? "\u2212" : sign; |
---|
649 | |
---|
650 | // Apply the scale, computing it from the value's exponent for si format. |
---|
651 | if (scale < 0) { |
---|
652 | var prefix = d3.formatPrefix(value, precision); |
---|
653 | value *= prefix.scale; |
---|
654 | suffix = prefix.symbol; |
---|
655 | } else { |
---|
656 | value *= scale; |
---|
657 | } |
---|
658 | |
---|
659 | // Convert to the desired precision. |
---|
660 | value = type(value, precision); |
---|
661 | |
---|
662 | // If the fill character is 0, the sign and group is applied after the fill. |
---|
663 | if (zfill) { |
---|
664 | var length = value.length + negative.length; |
---|
665 | if (length < width) value = new Array(width - length + 1).join(fill) + value; |
---|
666 | if (comma) value = d3_format_group(value); |
---|
667 | value = negative + value; |
---|
668 | } |
---|
669 | |
---|
670 | // Otherwise (e.g., space-filling), the sign and group is applied before. |
---|
671 | else { |
---|
672 | if (comma) value = d3_format_group(value); |
---|
673 | value = negative + value; |
---|
674 | var length = value.length; |
---|
675 | if (length < width) value = new Array(width - length + 1).join(fill) + value; |
---|
676 | } |
---|
677 | |
---|
678 | return value + suffix; |
---|
679 | }; |
---|
680 | }; |
---|
681 | |
---|
682 | // [[fill]align][sign][#][0][width][,][.precision][type] |
---|
683 | var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/; |
---|
684 | |
---|
685 | var d3_format_types = d3.map({ |
---|
686 | g: function(x, p) { return x.toPrecision(p); }, |
---|
687 | e: function(x, p) { return x.toExponential(p); }, |
---|
688 | f: function(x, p) { return x.toFixed(p); }, |
---|
689 | r: function(x, p) { return d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p))); } |
---|
690 | }); |
---|
691 | |
---|
692 | function d3_format_precision(x, p) { |
---|
693 | return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1); |
---|
694 | } |
---|
695 | |
---|
696 | function d3_format_typeDefault(x) { |
---|
697 | return x + ""; |
---|
698 | } |
---|
699 | |
---|
700 | // Apply comma grouping for thousands. |
---|
701 | function d3_format_group(value) { |
---|
702 | var i = value.lastIndexOf("."), |
---|
703 | f = i >= 0 ? value.substring(i) : (i = value.length, ""), |
---|
704 | t = []; |
---|
705 | while (i > 0) t.push(value.substring(i -= 3, i + 3)); |
---|
706 | return t.reverse().join(",") + f; |
---|
707 | } |
---|
708 | var d3_formatPrefixes = ["y","z","a","f","p","n","Ό","m","","k","M","G","T","P","E","Z","Y"].map(d3_formatPrefix); |
---|
709 | |
---|
710 | d3.formatPrefix = function(value, precision) { |
---|
711 | var i = 0; |
---|
712 | if (value) { |
---|
713 | if (value < 0) value *= -1; |
---|
714 | if (precision) value = d3.round(value, d3_format_precision(value, precision)); |
---|
715 | i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10); |
---|
716 | i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3)); |
---|
717 | } |
---|
718 | return d3_formatPrefixes[8 + i / 3]; |
---|
719 | }; |
---|
720 | |
---|
721 | function d3_formatPrefix(d, i) { |
---|
722 | return { |
---|
723 | scale: Math.pow(10, (8 - i) * 3), |
---|
724 | symbol: d |
---|
725 | }; |
---|
726 | } |
---|
727 | |
---|
728 | /* |
---|
729 | * TERMS OF USE - EASING EQUATIONS |
---|
730 | * |
---|
731 | * Open source under the BSD License. |
---|
732 | * |
---|
733 | * Copyright 2001 Robert Penner |
---|
734 | * All rights reserved. |
---|
735 | * |
---|
736 | * Redistribution and use in source and binary forms, with or without |
---|
737 | * modification, are permitted provided that the following conditions are met: |
---|
738 | * |
---|
739 | * - Redistributions of source code must retain the above copyright notice, this |
---|
740 | * list of conditions and the following disclaimer. |
---|
741 | * |
---|
742 | * - Redistributions in binary form must reproduce the above copyright notice, |
---|
743 | * this list of conditions and the following disclaimer in the documentation |
---|
744 | * and/or other materials provided with the distribution. |
---|
745 | * |
---|
746 | * - Neither the name of the author nor the names of contributors may be used to |
---|
747 | * endorse or promote products derived from this software without specific |
---|
748 | * prior written permission. |
---|
749 | * |
---|
750 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
---|
751 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
---|
752 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
---|
753 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
---|
754 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
---|
755 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
---|
756 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
---|
757 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
---|
758 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
---|
759 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
---|
760 | * POSSIBILITY OF SUCH DAMAGE. |
---|
761 | */ |
---|
762 | |
---|
763 | var d3_ease_quad = d3_ease_poly(2), |
---|
764 | d3_ease_cubic = d3_ease_poly(3), |
---|
765 | d3_ease_default = function() { return d3_ease_identity; }; |
---|
766 | |
---|
767 | var d3_ease = d3.map({ |
---|
768 | linear: d3_ease_default, |
---|
769 | poly: d3_ease_poly, |
---|
770 | quad: function() { return d3_ease_quad; }, |
---|
771 | cubic: function() { return d3_ease_cubic; }, |
---|
772 | sin: function() { return d3_ease_sin; }, |
---|
773 | exp: function() { return d3_ease_exp; }, |
---|
774 | circle: function() { return d3_ease_circle; }, |
---|
775 | elastic: d3_ease_elastic, |
---|
776 | back: d3_ease_back, |
---|
777 | bounce: function() { return d3_ease_bounce; } |
---|
778 | }); |
---|
779 | |
---|
780 | var d3_ease_mode = d3.map({ |
---|
781 | "in": d3_ease_identity, |
---|
782 | "out": d3_ease_reverse, |
---|
783 | "in-out": d3_ease_reflect, |
---|
784 | "out-in": function(f) { return d3_ease_reflect(d3_ease_reverse(f)); } |
---|
785 | }); |
---|
786 | |
---|
787 | d3.ease = function(name) { |
---|
788 | var i = name.indexOf("-"), |
---|
789 | t = i >= 0 ? name.substring(0, i) : name, |
---|
790 | m = i >= 0 ? name.substring(i + 1) : "in"; |
---|
791 | t = d3_ease.get(t) || d3_ease_default; |
---|
792 | m = d3_ease_mode.get(m) || d3_ease_identity; |
---|
793 | return d3_ease_clamp(m(t.apply(null, Array.prototype.slice.call(arguments, 1)))); |
---|
794 | }; |
---|
795 | |
---|
796 | function d3_ease_clamp(f) { |
---|
797 | return function(t) { |
---|
798 | return t <= 0 ? 0 : t >= 1 ? 1 : f(t); |
---|
799 | }; |
---|
800 | } |
---|
801 | |
---|
802 | function d3_ease_reverse(f) { |
---|
803 | return function(t) { |
---|
804 | return 1 - f(1 - t); |
---|
805 | }; |
---|
806 | } |
---|
807 | |
---|
808 | function d3_ease_reflect(f) { |
---|
809 | return function(t) { |
---|
810 | return .5 * (t < .5 ? f(2 * t) : (2 - f(2 - 2 * t))); |
---|
811 | }; |
---|
812 | } |
---|
813 | |
---|
814 | function d3_ease_identity(t) { |
---|
815 | return t; |
---|
816 | } |
---|
817 | |
---|
818 | function d3_ease_poly(e) { |
---|
819 | return function(t) { |
---|
820 | return Math.pow(t, e); |
---|
821 | }; |
---|
822 | } |
---|
823 | |
---|
824 | function d3_ease_sin(t) { |
---|
825 | return 1 - Math.cos(t * Math.PI / 2); |
---|
826 | } |
---|
827 | |
---|
828 | function d3_ease_exp(t) { |
---|
829 | return Math.pow(2, 10 * (t - 1)); |
---|
830 | } |
---|
831 | |
---|
832 | function d3_ease_circle(t) { |
---|
833 | return 1 - Math.sqrt(1 - t * t); |
---|
834 | } |
---|
835 | |
---|
836 | function d3_ease_elastic(a, p) { |
---|
837 | var s; |
---|
838 | if (arguments.length < 2) p = 0.45; |
---|
839 | if (arguments.length < 1) { a = 1; s = p / 4; } |
---|
840 | else s = p / (2 * Math.PI) * Math.asin(1 / a); |
---|
841 | return function(t) { |
---|
842 | return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / p); |
---|
843 | }; |
---|
844 | } |
---|
845 | |
---|
846 | function d3_ease_back(s) { |
---|
847 | if (!s) s = 1.70158; |
---|
848 | return function(t) { |
---|
849 | return t * t * ((s + 1) * t - s); |
---|
850 | }; |
---|
851 | } |
---|
852 | |
---|
853 | function d3_ease_bounce(t) { |
---|
854 | return t < 1 / 2.75 ? 7.5625 * t * t |
---|
855 | : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 |
---|
856 | : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 |
---|
857 | : 7.5625 * (t -= 2.625 / 2.75) * t + .984375; |
---|
858 | } |
---|
859 | d3.event = null; |
---|
860 | |
---|
861 | function d3_eventCancel() { |
---|
862 | d3.event.stopPropagation(); |
---|
863 | d3.event.preventDefault(); |
---|
864 | } |
---|
865 | |
---|
866 | function d3_eventSource() { |
---|
867 | var e = d3.event, s; |
---|
868 | while (s = e.sourceEvent) e = s; |
---|
869 | return e; |
---|
870 | } |
---|
871 | |
---|
872 | // Like d3.dispatch, but for custom events abstracting native UI events. These |
---|
873 | // events have a target component (such as a brush), a target element (such as |
---|
874 | // the svg:g element containing the brush) and the standard arguments `d` (the |
---|
875 | // target element's data) and `i` (the selection index of the target element). |
---|
876 | function d3_eventDispatch(target) { |
---|
877 | var dispatch = new d3_dispatch, |
---|
878 | i = 0, |
---|
879 | n = arguments.length; |
---|
880 | |
---|
881 | while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch); |
---|
882 | |
---|
883 | // Creates a dispatch context for the specified `thiz` (typically, the target |
---|
884 | // DOM element that received the source event) and `argumentz` (typically, the |
---|
885 | // data `d` and index `i` of the target element). The returned function can be |
---|
886 | // used to dispatch an event to any registered listeners; the function takes a |
---|
887 | // single argument as input, being the event to dispatch. The event must have |
---|
888 | // a "type" attribute which corresponds to a type registered in the |
---|
889 | // constructor. This context will automatically populate the "sourceEvent" and |
---|
890 | // "target" attributes of the event, as well as setting the `d3.event` global |
---|
891 | // for the duration of the notification. |
---|
892 | dispatch.of = function(thiz, argumentz) { |
---|
893 | return function(e1) { |
---|
894 | try { |
---|
895 | var e0 = |
---|
896 | e1.sourceEvent = d3.event; |
---|
897 | e1.target = target; |
---|
898 | d3.event = e1; |
---|
899 | dispatch[e1.type].apply(thiz, argumentz); |
---|
900 | } finally { |
---|
901 | d3.event = e0; |
---|
902 | } |
---|
903 | }; |
---|
904 | }; |
---|
905 | |
---|
906 | return dispatch; |
---|
907 | } |
---|
908 | d3.interpolate = function(a, b) { |
---|
909 | var i = d3.interpolators.length, f; |
---|
910 | while (--i >= 0 && !(f = d3.interpolators[i](a, b))); |
---|
911 | return f; |
---|
912 | }; |
---|
913 | |
---|
914 | d3.interpolateNumber = function(a, b) { |
---|
915 | b -= a; |
---|
916 | return function(t) { return a + b * t; }; |
---|
917 | }; |
---|
918 | |
---|
919 | d3.interpolateRound = function(a, b) { |
---|
920 | b -= a; |
---|
921 | return function(t) { return Math.round(a + b * t); }; |
---|
922 | }; |
---|
923 | |
---|
924 | d3.interpolateString = function(a, b) { |
---|
925 | var m, // current match |
---|
926 | i, // current index |
---|
927 | j, // current index (for coallescing) |
---|
928 | s0 = 0, // start index of current string prefix |
---|
929 | s1 = 0, // end index of current string prefix |
---|
930 | s = [], // string constants and placeholders |
---|
931 | q = [], // number interpolators |
---|
932 | n, // q.length |
---|
933 | o; |
---|
934 | |
---|
935 | // Reset our regular expression! |
---|
936 | d3_interpolate_number.lastIndex = 0; |
---|
937 | |
---|
938 | // Find all numbers in b. |
---|
939 | for (i = 0; m = d3_interpolate_number.exec(b); ++i) { |
---|
940 | if (m.index) s.push(b.substring(s0, s1 = m.index)); |
---|
941 | q.push({i: s.length, x: m[0]}); |
---|
942 | s.push(null); |
---|
943 | s0 = d3_interpolate_number.lastIndex; |
---|
944 | } |
---|
945 | if (s0 < b.length) s.push(b.substring(s0)); |
---|
946 | |
---|
947 | // Find all numbers in a. |
---|
948 | for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) { |
---|
949 | o = q[i]; |
---|
950 | if (o.x == m[0]) { // The numbers match, so coallesce. |
---|
951 | if (o.i) { |
---|
952 | if (s[o.i + 1] == null) { // This match is followed by another number. |
---|
953 | s[o.i - 1] += o.x; |
---|
954 | s.splice(o.i, 1); |
---|
955 | for (j = i + 1; j < n; ++j) q[j].i--; |
---|
956 | } else { // This match is followed by a string, so coallesce twice. |
---|
957 | s[o.i - 1] += o.x + s[o.i + 1]; |
---|
958 | s.splice(o.i, 2); |
---|
959 | for (j = i + 1; j < n; ++j) q[j].i -= 2; |
---|
960 | } |
---|
961 | } else { |
---|
962 | if (s[o.i + 1] == null) { // This match is followed by another number. |
---|
963 | s[o.i] = o.x; |
---|
964 | } else { // This match is followed by a string, so coallesce twice. |
---|
965 | s[o.i] = o.x + s[o.i + 1]; |
---|
966 | s.splice(o.i + 1, 1); |
---|
967 | for (j = i + 1; j < n; ++j) q[j].i--; |
---|
968 | } |
---|
969 | } |
---|
970 | q.splice(i, 1); |
---|
971 | n--; |
---|
972 | i--; |
---|
973 | } else { |
---|
974 | o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x)); |
---|
975 | } |
---|
976 | } |
---|
977 | |
---|
978 | // Remove any numbers in b not found in a. |
---|
979 | while (i < n) { |
---|
980 | o = q.pop(); |
---|
981 | if (s[o.i + 1] == null) { // This match is followed by another number. |
---|
982 | s[o.i] = o.x; |
---|
983 | } else { // This match is followed by a string, so coallesce twice. |
---|
984 | s[o.i] = o.x + s[o.i + 1]; |
---|
985 | s.splice(o.i + 1, 1); |
---|
986 | } |
---|
987 | n--; |
---|
988 | } |
---|
989 | |
---|
990 | // Special optimization for only a single match. |
---|
991 | if (s.length === 1) { |
---|
992 | return s[0] == null ? q[0].x : function() { return b; }; |
---|
993 | } |
---|
994 | |
---|
995 | // Otherwise, interpolate each of the numbers and rejoin the string. |
---|
996 | return function(t) { |
---|
997 | for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t); |
---|
998 | return s.join(""); |
---|
999 | }; |
---|
1000 | }; |
---|
1001 | |
---|
1002 | d3.interpolateTransform = function(a, b) { |
---|
1003 | var s = [], // string constants and placeholders |
---|
1004 | q = [], // number interpolators |
---|
1005 | n, |
---|
1006 | A = d3.transform(a), |
---|
1007 | B = d3.transform(b), |
---|
1008 | ta = A.translate, |
---|
1009 | tb = B.translate, |
---|
1010 | ra = A.rotate, |
---|
1011 | rb = B.rotate, |
---|
1012 | wa = A.skew, |
---|
1013 | wb = B.skew, |
---|
1014 | ka = A.scale, |
---|
1015 | kb = B.scale; |
---|
1016 | |
---|
1017 | if (ta[0] != tb[0] || ta[1] != tb[1]) { |
---|
1018 | s.push("translate(", null, ",", null, ")"); |
---|
1019 | q.push({i: 1, x: d3.interpolateNumber(ta[0], tb[0])}, {i: 3, x: d3.interpolateNumber(ta[1], tb[1])}); |
---|
1020 | } else if (tb[0] || tb[1]) { |
---|
1021 | s.push("translate(" + tb + ")"); |
---|
1022 | } else { |
---|
1023 | s.push(""); |
---|
1024 | } |
---|
1025 | |
---|
1026 | if (ra != rb) { |
---|
1027 | q.push({i: s.push(s.pop() + "rotate(", null, ")") - 2, x: d3.interpolateNumber(ra, rb)}); |
---|
1028 | } else if (rb) { |
---|
1029 | s.push(s.pop() + "rotate(" + rb + ")"); |
---|
1030 | } |
---|
1031 | |
---|
1032 | if (wa != wb) { |
---|
1033 | q.push({i: s.push(s.pop() + "skewX(", null, ")") - 2, x: d3.interpolateNumber(wa, wb)}); |
---|
1034 | } else if (wb) { |
---|
1035 | s.push(s.pop() + "skewX(" + wb + ")"); |
---|
1036 | } |
---|
1037 | |
---|
1038 | if (ka[0] != kb[0] || ka[1] != kb[1]) { |
---|
1039 | n = s.push(s.pop() + "scale(", null, ",", null, ")"); |
---|
1040 | q.push({i: n - 4, x: d3.interpolateNumber(ka[0], kb[0])}, {i: n - 2, x: d3.interpolateNumber(ka[1], kb[1])}); |
---|
1041 | } else if (kb[0] != 1 || kb[1] != 1) { |
---|
1042 | s.push(s.pop() + "scale(" + kb + ")"); |
---|
1043 | } |
---|
1044 | |
---|
1045 | n = q.length; |
---|
1046 | return function(t) { |
---|
1047 | var i = -1, o; |
---|
1048 | while (++i < n) s[(o = q[i]).i] = o.x(t); |
---|
1049 | return s.join(""); |
---|
1050 | }; |
---|
1051 | }; |
---|
1052 | |
---|
1053 | d3.interpolateRgb = function(a, b) { |
---|
1054 | a = d3.rgb(a); |
---|
1055 | b = d3.rgb(b); |
---|
1056 | var ar = a.r, |
---|
1057 | ag = a.g, |
---|
1058 | ab = a.b, |
---|
1059 | br = b.r - ar, |
---|
1060 | bg = b.g - ag, |
---|
1061 | bb = b.b - ab; |
---|
1062 | return function(t) { |
---|
1063 | return "#" |
---|
1064 | + d3_rgb_hex(Math.round(ar + br * t)) |
---|
1065 | + d3_rgb_hex(Math.round(ag + bg * t)) |
---|
1066 | + d3_rgb_hex(Math.round(ab + bb * t)); |
---|
1067 | }; |
---|
1068 | }; |
---|
1069 | |
---|
1070 | // interpolates HSL space, but outputs RGB string (for compatibility) |
---|
1071 | d3.interpolateHsl = function(a, b) { |
---|
1072 | a = d3.hsl(a); |
---|
1073 | b = d3.hsl(b); |
---|
1074 | var h0 = a.h, |
---|
1075 | s0 = a.s, |
---|
1076 | l0 = a.l, |
---|
1077 | h1 = b.h - h0, |
---|
1078 | s1 = b.s - s0, |
---|
1079 | l1 = b.l - l0; |
---|
1080 | return function(t) { |
---|
1081 | return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t).toString(); |
---|
1082 | }; |
---|
1083 | }; |
---|
1084 | |
---|
1085 | d3.interpolateArray = function(a, b) { |
---|
1086 | var x = [], |
---|
1087 | c = [], |
---|
1088 | na = a.length, |
---|
1089 | nb = b.length, |
---|
1090 | n0 = Math.min(a.length, b.length), |
---|
1091 | i; |
---|
1092 | for (i = 0; i < n0; ++i) x.push(d3.interpolate(a[i], b[i])); |
---|
1093 | for (; i < na; ++i) c[i] = a[i]; |
---|
1094 | for (; i < nb; ++i) c[i] = b[i]; |
---|
1095 | return function(t) { |
---|
1096 | for (i = 0; i < n0; ++i) c[i] = x[i](t); |
---|
1097 | return c; |
---|
1098 | }; |
---|
1099 | }; |
---|
1100 | |
---|
1101 | d3.interpolateObject = function(a, b) { |
---|
1102 | var i = {}, |
---|
1103 | c = {}, |
---|
1104 | k; |
---|
1105 | for (k in a) { |
---|
1106 | if (k in b) { |
---|
1107 | i[k] = d3_interpolateByName(k)(a[k], b[k]); |
---|
1108 | } else { |
---|
1109 | c[k] = a[k]; |
---|
1110 | } |
---|
1111 | } |
---|
1112 | for (k in b) { |
---|
1113 | if (!(k in a)) { |
---|
1114 | c[k] = b[k]; |
---|
1115 | } |
---|
1116 | } |
---|
1117 | return function(t) { |
---|
1118 | for (k in i) c[k] = i[k](t); |
---|
1119 | return c; |
---|
1120 | }; |
---|
1121 | } |
---|
1122 | |
---|
1123 | var d3_interpolate_number = /[-+]?(?:\d*\.?\d+)(?:[eE][-+]?\d+)?/g; |
---|
1124 | |
---|
1125 | function d3_interpolateByName(n) { |
---|
1126 | return n == "transform" |
---|
1127 | ? d3.interpolateTransform |
---|
1128 | : d3.interpolate; |
---|
1129 | } |
---|
1130 | |
---|
1131 | d3.interpolators = [ |
---|
1132 | d3.interpolateObject, |
---|
1133 | function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); }, |
---|
1134 | function(a, b) { return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + ""); }, |
---|
1135 | function(a, b) { return (typeof b === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(a, b); }, |
---|
1136 | function(a, b) { return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b); } |
---|
1137 | ]; |
---|
1138 | function d3_uninterpolateNumber(a, b) { |
---|
1139 | b = b - (a = +a) ? 1 / (b - a) : 0; |
---|
1140 | return function(x) { return (x - a) * b; }; |
---|
1141 | } |
---|
1142 | |
---|
1143 | function d3_uninterpolateClamp(a, b) { |
---|
1144 | b = b - (a = +a) ? 1 / (b - a) : 0; |
---|
1145 | return function(x) { return Math.max(0, Math.min(1, (x - a) * b)); }; |
---|
1146 | } |
---|
1147 | d3.rgb = function(r, g, b) { |
---|
1148 | return arguments.length === 1 |
---|
1149 | ? (r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b) |
---|
1150 | : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb)) |
---|
1151 | : d3_rgb(~~r, ~~g, ~~b); |
---|
1152 | }; |
---|
1153 | |
---|
1154 | function d3_rgb(r, g, b) { |
---|
1155 | return new d3_Rgb(r, g, b); |
---|
1156 | } |
---|
1157 | |
---|
1158 | function d3_Rgb(r, g, b) { |
---|
1159 | this.r = r; |
---|
1160 | this.g = g; |
---|
1161 | this.b = b; |
---|
1162 | } |
---|
1163 | |
---|
1164 | d3_Rgb.prototype.brighter = function(k) { |
---|
1165 | k = Math.pow(0.7, arguments.length ? k : 1); |
---|
1166 | var r = this.r, |
---|
1167 | g = this.g, |
---|
1168 | b = this.b, |
---|
1169 | i = 30; |
---|
1170 | if (!r && !g && !b) return d3_rgb(i, i, i); |
---|
1171 | if (r && r < i) r = i; |
---|
1172 | if (g && g < i) g = i; |
---|
1173 | if (b && b < i) b = i; |
---|
1174 | return d3_rgb( |
---|
1175 | Math.min(255, Math.floor(r / k)), |
---|
1176 | Math.min(255, Math.floor(g / k)), |
---|
1177 | Math.min(255, Math.floor(b / k))); |
---|
1178 | }; |
---|
1179 | |
---|
1180 | d3_Rgb.prototype.darker = function(k) { |
---|
1181 | k = Math.pow(0.7, arguments.length ? k : 1); |
---|
1182 | return d3_rgb( |
---|
1183 | Math.floor(k * this.r), |
---|
1184 | Math.floor(k * this.g), |
---|
1185 | Math.floor(k * this.b)); |
---|
1186 | }; |
---|
1187 | |
---|
1188 | d3_Rgb.prototype.hsl = function() { |
---|
1189 | return d3_rgb_hsl(this.r, this.g, this.b); |
---|
1190 | }; |
---|
1191 | |
---|
1192 | d3_Rgb.prototype.toString = function() { |
---|
1193 | return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b); |
---|
1194 | }; |
---|
1195 | |
---|
1196 | function d3_rgb_hex(v) { |
---|
1197 | return v < 0x10 |
---|
1198 | ? "0" + Math.max(0, v).toString(16) |
---|
1199 | : Math.min(255, v).toString(16); |
---|
1200 | } |
---|
1201 | |
---|
1202 | function d3_rgb_parse(format, rgb, hsl) { |
---|
1203 | var r = 0, // red channel; int in [0, 255] |
---|
1204 | g = 0, // green channel; int in [0, 255] |
---|
1205 | b = 0, // blue channel; int in [0, 255] |
---|
1206 | m1, // CSS color specification match |
---|
1207 | m2, // CSS color specification type (e.g., rgb) |
---|
1208 | name; |
---|
1209 | |
---|
1210 | /* Handle hsl, rgb. */ |
---|
1211 | m1 = /([a-z]+)\((.*)\)/i.exec(format); |
---|
1212 | if (m1) { |
---|
1213 | m2 = m1[2].split(","); |
---|
1214 | switch (m1[1]) { |
---|
1215 | case "hsl": { |
---|
1216 | return hsl( |
---|
1217 | parseFloat(m2[0]), // degrees |
---|
1218 | parseFloat(m2[1]) / 100, // percentage |
---|
1219 | parseFloat(m2[2]) / 100 // percentage |
---|
1220 | ); |
---|
1221 | } |
---|
1222 | case "rgb": { |
---|
1223 | return rgb( |
---|
1224 | d3_rgb_parseNumber(m2[0]), |
---|
1225 | d3_rgb_parseNumber(m2[1]), |
---|
1226 | d3_rgb_parseNumber(m2[2]) |
---|
1227 | ); |
---|
1228 | } |
---|
1229 | } |
---|
1230 | } |
---|
1231 | |
---|
1232 | /* Named colors. */ |
---|
1233 | if (name = d3_rgb_names.get(format)) return rgb(name.r, name.g, name.b); |
---|
1234 | |
---|
1235 | /* Hexadecimal colors: #rgb and #rrggbb. */ |
---|
1236 | if (format != null && format.charAt(0) === "#") { |
---|
1237 | if (format.length === 4) { |
---|
1238 | r = format.charAt(1); r += r; |
---|
1239 | g = format.charAt(2); g += g; |
---|
1240 | b = format.charAt(3); b += b; |
---|
1241 | } else if (format.length === 7) { |
---|
1242 | r = format.substring(1, 3); |
---|
1243 | g = format.substring(3, 5); |
---|
1244 | b = format.substring(5, 7); |
---|
1245 | } |
---|
1246 | r = parseInt(r, 16); |
---|
1247 | g = parseInt(g, 16); |
---|
1248 | b = parseInt(b, 16); |
---|
1249 | } |
---|
1250 | |
---|
1251 | return rgb(r, g, b); |
---|
1252 | } |
---|
1253 | |
---|
1254 | function d3_rgb_hsl(r, g, b) { |
---|
1255 | var min = Math.min(r /= 255, g /= 255, b /= 255), |
---|
1256 | max = Math.max(r, g, b), |
---|
1257 | d = max - min, |
---|
1258 | h, |
---|
1259 | s, |
---|
1260 | l = (max + min) / 2; |
---|
1261 | if (d) { |
---|
1262 | s = l < .5 ? d / (max + min) : d / (2 - max - min); |
---|
1263 | if (r == max) h = (g - b) / d + (g < b ? 6 : 0); |
---|
1264 | else if (g == max) h = (b - r) / d + 2; |
---|
1265 | else h = (r - g) / d + 4; |
---|
1266 | h *= 60; |
---|
1267 | } else { |
---|
1268 | s = h = 0; |
---|
1269 | } |
---|
1270 | return d3_hsl(h, s, l); |
---|
1271 | } |
---|
1272 | |
---|
1273 | function d3_rgb_parseNumber(c) { // either integer or percentage |
---|
1274 | var f = parseFloat(c); |
---|
1275 | return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f; |
---|
1276 | } |
---|
1277 | |
---|
1278 | var d3_rgb_names = d3.map({ |
---|
1279 | aliceblue: "#f0f8ff", |
---|
1280 | antiquewhite: "#faebd7", |
---|
1281 | aqua: "#00ffff", |
---|
1282 | aquamarine: "#7fffd4", |
---|
1283 | azure: "#f0ffff", |
---|
1284 | beige: "#f5f5dc", |
---|
1285 | bisque: "#ffe4c4", |
---|
1286 | black: "#000000", |
---|
1287 | blanchedalmond: "#ffebcd", |
---|
1288 | blue: "#0000ff", |
---|
1289 | blueviolet: "#8a2be2", |
---|
1290 | brown: "#a52a2a", |
---|
1291 | burlywood: "#deb887", |
---|
1292 | cadetblue: "#5f9ea0", |
---|
1293 | chartreuse: "#7fff00", |
---|
1294 | chocolate: "#d2691e", |
---|
1295 | coral: "#ff7f50", |
---|
1296 | cornflowerblue: "#6495ed", |
---|
1297 | cornsilk: "#fff8dc", |
---|
1298 | crimson: "#dc143c", |
---|
1299 | cyan: "#00ffff", |
---|
1300 | darkblue: "#00008b", |
---|
1301 | darkcyan: "#008b8b", |
---|
1302 | darkgoldenrod: "#b8860b", |
---|
1303 | darkgray: "#a9a9a9", |
---|
1304 | darkgreen: "#006400", |
---|
1305 | darkgrey: "#a9a9a9", |
---|
1306 | darkkhaki: "#bdb76b", |
---|
1307 | darkmagenta: "#8b008b", |
---|
1308 | darkolivegreen: "#556b2f", |
---|
1309 | darkorange: "#ff8c00", |
---|
1310 | darkorchid: "#9932cc", |
---|
1311 | darkred: "#8b0000", |
---|
1312 | darksalmon: "#e9967a", |
---|
1313 | darkseagreen: "#8fbc8f", |
---|
1314 | darkslateblue: "#483d8b", |
---|
1315 | darkslategray: "#2f4f4f", |
---|
1316 | darkslategrey: "#2f4f4f", |
---|
1317 | darkturquoise: "#00ced1", |
---|
1318 | darkviolet: "#9400d3", |
---|
1319 | deeppink: "#ff1493", |
---|
1320 | deepskyblue: "#00bfff", |
---|
1321 | dimgray: "#696969", |
---|
1322 | dimgrey: "#696969", |
---|
1323 | dodgerblue: "#1e90ff", |
---|
1324 | firebrick: "#b22222", |
---|
1325 | floralwhite: "#fffaf0", |
---|
1326 | forestgreen: "#228b22", |
---|
1327 | fuchsia: "#ff00ff", |
---|
1328 | gainsboro: "#dcdcdc", |
---|
1329 | ghostwhite: "#f8f8ff", |
---|
1330 | gold: "#ffd700", |
---|
1331 | goldenrod: "#daa520", |
---|
1332 | gray: "#808080", |
---|
1333 | green: "#008000", |
---|
1334 | greenyellow: "#adff2f", |
---|
1335 | grey: "#808080", |
---|
1336 | honeydew: "#f0fff0", |
---|
1337 | hotpink: "#ff69b4", |
---|
1338 | indianred: "#cd5c5c", |
---|
1339 | indigo: "#4b0082", |
---|
1340 | ivory: "#fffff0", |
---|
1341 | khaki: "#f0e68c", |
---|
1342 | lavender: "#e6e6fa", |
---|
1343 | lavenderblush: "#fff0f5", |
---|
1344 | lawngreen: "#7cfc00", |
---|
1345 | lemonchiffon: "#fffacd", |
---|
1346 | lightblue: "#add8e6", |
---|
1347 | lightcoral: "#f08080", |
---|
1348 | lightcyan: "#e0ffff", |
---|
1349 | lightgoldenrodyellow: "#fafad2", |
---|
1350 | lightgray: "#d3d3d3", |
---|
1351 | lightgreen: "#90ee90", |
---|
1352 | lightgrey: "#d3d3d3", |
---|
1353 | lightpink: "#ffb6c1", |
---|
1354 | lightsalmon: "#ffa07a", |
---|
1355 | lightseagreen: "#20b2aa", |
---|
1356 | lightskyblue: "#87cefa", |
---|
1357 | lightslategray: "#778899", |
---|
1358 | lightslategrey: "#778899", |
---|
1359 | lightsteelblue: "#b0c4de", |
---|
1360 | lightyellow: "#ffffe0", |
---|
1361 | lime: "#00ff00", |
---|
1362 | limegreen: "#32cd32", |
---|
1363 | linen: "#faf0e6", |
---|
1364 | magenta: "#ff00ff", |
---|
1365 | maroon: "#800000", |
---|
1366 | mediumaquamarine: "#66cdaa", |
---|
1367 | mediumblue: "#0000cd", |
---|
1368 | mediumorchid: "#ba55d3", |
---|
1369 | mediumpurple: "#9370db", |
---|
1370 | mediumseagreen: "#3cb371", |
---|
1371 | mediumslateblue: "#7b68ee", |
---|
1372 | mediumspringgreen: "#00fa9a", |
---|
1373 | mediumturquoise: "#48d1cc", |
---|
1374 | mediumvioletred: "#c71585", |
---|
1375 | midnightblue: "#191970", |
---|
1376 | mintcream: "#f5fffa", |
---|
1377 | mistyrose: "#ffe4e1", |
---|
1378 | moccasin: "#ffe4b5", |
---|
1379 | navajowhite: "#ffdead", |
---|
1380 | navy: "#000080", |
---|
1381 | oldlace: "#fdf5e6", |
---|
1382 | olive: "#808000", |
---|
1383 | olivedrab: "#6b8e23", |
---|
1384 | orange: "#ffa500", |
---|
1385 | orangered: "#ff4500", |
---|
1386 | orchid: "#da70d6", |
---|
1387 | palegoldenrod: "#eee8aa", |
---|
1388 | palegreen: "#98fb98", |
---|
1389 | paleturquoise: "#afeeee", |
---|
1390 | palevioletred: "#db7093", |
---|
1391 | papayawhip: "#ffefd5", |
---|
1392 | peachpuff: "#ffdab9", |
---|
1393 | peru: "#cd853f", |
---|
1394 | pink: "#ffc0cb", |
---|
1395 | plum: "#dda0dd", |
---|
1396 | powderblue: "#b0e0e6", |
---|
1397 | purple: "#800080", |
---|
1398 | red: "#ff0000", |
---|
1399 | rosybrown: "#bc8f8f", |
---|
1400 | royalblue: "#4169e1", |
---|
1401 | saddlebrown: "#8b4513", |
---|
1402 | salmon: "#fa8072", |
---|
1403 | sandybrown: "#f4a460", |
---|
1404 | seagreen: "#2e8b57", |
---|
1405 | seashell: "#fff5ee", |
---|
1406 | sienna: "#a0522d", |
---|
1407 | silver: "#c0c0c0", |
---|
1408 | skyblue: "#87ceeb", |
---|
1409 | slateblue: "#6a5acd", |
---|
1410 | slategray: "#708090", |
---|
1411 | slategrey: "#708090", |
---|
1412 | snow: "#fffafa", |
---|
1413 | springgreen: "#00ff7f", |
---|
1414 | steelblue: "#4682b4", |
---|
1415 | tan: "#d2b48c", |
---|
1416 | teal: "#008080", |
---|
1417 | thistle: "#d8bfd8", |
---|
1418 | tomato: "#ff6347", |
---|
1419 | turquoise: "#40e0d0", |
---|
1420 | violet: "#ee82ee", |
---|
1421 | wheat: "#f5deb3", |
---|
1422 | white: "#ffffff", |
---|
1423 | whitesmoke: "#f5f5f5", |
---|
1424 | yellow: "#ffff00", |
---|
1425 | yellowgreen: "#9acd32" |
---|
1426 | }); |
---|
1427 | |
---|
1428 | d3_rgb_names.forEach(function(key, value) { |
---|
1429 | d3_rgb_names.set(key, d3_rgb_parse(value, d3_rgb, d3_hsl_rgb)); |
---|
1430 | }); |
---|
1431 | d3.hsl = function(h, s, l) { |
---|
1432 | return arguments.length === 1 |
---|
1433 | ? (h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l) |
---|
1434 | : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl)) |
---|
1435 | : d3_hsl(+h, +s, +l); |
---|
1436 | }; |
---|
1437 | |
---|
1438 | function d3_hsl(h, s, l) { |
---|
1439 | return new d3_Hsl(h, s, l); |
---|
1440 | } |
---|
1441 | |
---|
1442 | function d3_Hsl(h, s, l) { |
---|
1443 | this.h = h; |
---|
1444 | this.s = s; |
---|
1445 | this.l = l; |
---|
1446 | } |
---|
1447 | |
---|
1448 | d3_Hsl.prototype.brighter = function(k) { |
---|
1449 | k = Math.pow(0.7, arguments.length ? k : 1); |
---|
1450 | return d3_hsl(this.h, this.s, this.l / k); |
---|
1451 | }; |
---|
1452 | |
---|
1453 | d3_Hsl.prototype.darker = function(k) { |
---|
1454 | k = Math.pow(0.7, arguments.length ? k : 1); |
---|
1455 | return d3_hsl(this.h, this.s, k * this.l); |
---|
1456 | }; |
---|
1457 | |
---|
1458 | d3_Hsl.prototype.rgb = function() { |
---|
1459 | return d3_hsl_rgb(this.h, this.s, this.l); |
---|
1460 | }; |
---|
1461 | |
---|
1462 | d3_Hsl.prototype.toString = function() { |
---|
1463 | return this.rgb().toString(); |
---|
1464 | }; |
---|
1465 | |
---|
1466 | function d3_hsl_rgb(h, s, l) { |
---|
1467 | var m1, |
---|
1468 | m2; |
---|
1469 | |
---|
1470 | /* Some simple corrections for h, s and l. */ |
---|
1471 | h = h % 360; if (h < 0) h += 360; |
---|
1472 | s = s < 0 ? 0 : s > 1 ? 1 : s; |
---|
1473 | l = l < 0 ? 0 : l > 1 ? 1 : l; |
---|
1474 | |
---|
1475 | /* From FvD 13.37, CSS Color Module Level 3 */ |
---|
1476 | m2 = l <= .5 ? l * (1 + s) : l + s - l * s; |
---|
1477 | m1 = 2 * l - m2; |
---|
1478 | |
---|
1479 | function v(h) { |
---|
1480 | if (h > 360) h -= 360; |
---|
1481 | else if (h < 0) h += 360; |
---|
1482 | if (h < 60) return m1 + (m2 - m1) * h / 60; |
---|
1483 | if (h < 180) return m2; |
---|
1484 | if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60; |
---|
1485 | return m1; |
---|
1486 | } |
---|
1487 | |
---|
1488 | function vv(h) { |
---|
1489 | return Math.round(v(h) * 255); |
---|
1490 | } |
---|
1491 | |
---|
1492 | return d3_rgb(vv(h + 120), vv(h), vv(h - 120)); |
---|
1493 | } |
---|
1494 | function d3_selection(groups) { |
---|
1495 | d3_arraySubclass(groups, d3_selectionPrototype); |
---|
1496 | return groups; |
---|
1497 | } |
---|
1498 | |
---|
1499 | var d3_select = function(s, n) { return n.querySelector(s); }, |
---|
1500 | d3_selectAll = function(s, n) { return n.querySelectorAll(s); }, |
---|
1501 | d3_selectRoot = document.documentElement, |
---|
1502 | d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector, |
---|
1503 | d3_selectMatches = function(n, s) { return d3_selectMatcher.call(n, s); }; |
---|
1504 | |
---|
1505 | // Prefer Sizzle, if available. |
---|
1506 | if (typeof Sizzle === "function") { |
---|
1507 | d3_select = function(s, n) { return Sizzle(s, n)[0]; }; |
---|
1508 | d3_selectAll = function(s, n) { return Sizzle.uniqueSort(Sizzle(s, n)); }; |
---|
1509 | d3_selectMatches = Sizzle.matchesSelector; |
---|
1510 | } |
---|
1511 | |
---|
1512 | var d3_selectionPrototype = []; |
---|
1513 | |
---|
1514 | d3.selection = function() { |
---|
1515 | return d3_selectionRoot; |
---|
1516 | }; |
---|
1517 | |
---|
1518 | d3.selection.prototype = d3_selectionPrototype; |
---|
1519 | d3_selectionPrototype.select = function(selector) { |
---|
1520 | var subgroups = [], |
---|
1521 | subgroup, |
---|
1522 | subnode, |
---|
1523 | group, |
---|
1524 | node; |
---|
1525 | |
---|
1526 | if (typeof selector !== "function") selector = d3_selection_selector(selector); |
---|
1527 | |
---|
1528 | for (var j = -1, m = this.length; ++j < m;) { |
---|
1529 | subgroups.push(subgroup = []); |
---|
1530 | subgroup.parentNode = (group = this[j]).parentNode; |
---|
1531 | for (var i = -1, n = group.length; ++i < n;) { |
---|
1532 | if (node = group[i]) { |
---|
1533 | subgroup.push(subnode = selector.call(node, node.__data__, i)); |
---|
1534 | if (subnode && "__data__" in node) subnode.__data__ = node.__data__; |
---|
1535 | } else { |
---|
1536 | subgroup.push(null); |
---|
1537 | } |
---|
1538 | } |
---|
1539 | } |
---|
1540 | |
---|
1541 | return d3_selection(subgroups); |
---|
1542 | }; |
---|
1543 | |
---|
1544 | function d3_selection_selector(selector) { |
---|
1545 | return function() { |
---|
1546 | return d3_select(selector, this); |
---|
1547 | }; |
---|
1548 | } |
---|
1549 | d3_selectionPrototype.selectAll = function(selector) { |
---|
1550 | var subgroups = [], |
---|
1551 | subgroup, |
---|
1552 | node; |
---|
1553 | |
---|
1554 | if (typeof selector !== "function") selector = d3_selection_selectorAll(selector); |
---|
1555 | |
---|
1556 | for (var j = -1, m = this.length; ++j < m;) { |
---|
1557 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
1558 | if (node = group[i]) { |
---|
1559 | subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i))); |
---|
1560 | subgroup.parentNode = node; |
---|
1561 | } |
---|
1562 | } |
---|
1563 | } |
---|
1564 | |
---|
1565 | return d3_selection(subgroups); |
---|
1566 | }; |
---|
1567 | |
---|
1568 | function d3_selection_selectorAll(selector) { |
---|
1569 | return function() { |
---|
1570 | return d3_selectAll(selector, this); |
---|
1571 | }; |
---|
1572 | } |
---|
1573 | d3_selectionPrototype.attr = function(name, value) { |
---|
1574 | name = d3.ns.qualify(name); |
---|
1575 | |
---|
1576 | // If no value is specified, return the first value. |
---|
1577 | if (arguments.length < 2) { |
---|
1578 | var node = this.node(); |
---|
1579 | return name.local |
---|
1580 | ? node.getAttributeNS(name.space, name.local) |
---|
1581 | : node.getAttribute(name); |
---|
1582 | } |
---|
1583 | |
---|
1584 | function attrNull() { |
---|
1585 | this.removeAttribute(name); |
---|
1586 | } |
---|
1587 | |
---|
1588 | function attrNullNS() { |
---|
1589 | this.removeAttributeNS(name.space, name.local); |
---|
1590 | } |
---|
1591 | |
---|
1592 | function attrConstant() { |
---|
1593 | this.setAttribute(name, value); |
---|
1594 | } |
---|
1595 | |
---|
1596 | function attrConstantNS() { |
---|
1597 | this.setAttributeNS(name.space, name.local, value); |
---|
1598 | } |
---|
1599 | |
---|
1600 | function attrFunction() { |
---|
1601 | var x = value.apply(this, arguments); |
---|
1602 | if (x == null) this.removeAttribute(name); |
---|
1603 | else this.setAttribute(name, x); |
---|
1604 | } |
---|
1605 | |
---|
1606 | function attrFunctionNS() { |
---|
1607 | var x = value.apply(this, arguments); |
---|
1608 | if (x == null) this.removeAttributeNS(name.space, name.local); |
---|
1609 | else this.setAttributeNS(name.space, name.local, x); |
---|
1610 | } |
---|
1611 | |
---|
1612 | return this.each(value == null |
---|
1613 | ? (name.local ? attrNullNS : attrNull) : (typeof value === "function" |
---|
1614 | ? (name.local ? attrFunctionNS : attrFunction) |
---|
1615 | : (name.local ? attrConstantNS : attrConstant))); |
---|
1616 | }; |
---|
1617 | d3_selectionPrototype.classed = function(name, value) { |
---|
1618 | var names = name.split(d3_selection_classedWhitespace), |
---|
1619 | n = names.length, |
---|
1620 | i = -1; |
---|
1621 | if (arguments.length > 1) { |
---|
1622 | while (++i < n) d3_selection_classed.call(this, names[i], value); |
---|
1623 | return this; |
---|
1624 | } else { |
---|
1625 | while (++i < n) if (!d3_selection_classed.call(this, names[i])) return false; |
---|
1626 | return true; |
---|
1627 | } |
---|
1628 | }; |
---|
1629 | |
---|
1630 | var d3_selection_classedWhitespace = /\s+/g; |
---|
1631 | |
---|
1632 | function d3_selection_classed(name, value) { |
---|
1633 | var re = new RegExp("(^|\\s+)" + d3.requote(name) + "(\\s+|$)", "g"); |
---|
1634 | |
---|
1635 | // If no value is specified, return the first value. |
---|
1636 | if (arguments.length < 2) { |
---|
1637 | var node = this.node(); |
---|
1638 | if (c = node.classList) return c.contains(name); |
---|
1639 | var c = node.className; |
---|
1640 | re.lastIndex = 0; |
---|
1641 | return re.test(c.baseVal != null ? c.baseVal : c); |
---|
1642 | } |
---|
1643 | |
---|
1644 | function classedAdd() { |
---|
1645 | if (c = this.classList) return c.add(name); |
---|
1646 | var c = this.className, |
---|
1647 | cb = c.baseVal != null, |
---|
1648 | cv = cb ? c.baseVal : c; |
---|
1649 | re.lastIndex = 0; |
---|
1650 | if (!re.test(cv)) { |
---|
1651 | cv = d3_collapse(cv + " " + name); |
---|
1652 | if (cb) c.baseVal = cv; |
---|
1653 | else this.className = cv; |
---|
1654 | } |
---|
1655 | } |
---|
1656 | |
---|
1657 | function classedRemove() { |
---|
1658 | if (c = this.classList) return c.remove(name); |
---|
1659 | var c = this.className, |
---|
1660 | cb = c.baseVal != null, |
---|
1661 | cv = cb ? c.baseVal : c; |
---|
1662 | cv = d3_collapse(cv.replace(re, " ")); |
---|
1663 | if (cb) c.baseVal = cv; |
---|
1664 | else this.className = cv; |
---|
1665 | } |
---|
1666 | |
---|
1667 | function classedFunction() { |
---|
1668 | (value.apply(this, arguments) |
---|
1669 | ? classedAdd |
---|
1670 | : classedRemove).call(this); |
---|
1671 | } |
---|
1672 | |
---|
1673 | return this.each(typeof value === "function" |
---|
1674 | ? classedFunction : value |
---|
1675 | ? classedAdd |
---|
1676 | : classedRemove); |
---|
1677 | } |
---|
1678 | d3_selectionPrototype.style = function(name, value, priority) { |
---|
1679 | if (arguments.length < 3) priority = ""; |
---|
1680 | |
---|
1681 | // If no value is specified, return the first value. |
---|
1682 | if (arguments.length < 2) return window |
---|
1683 | .getComputedStyle(this.node(), null) |
---|
1684 | .getPropertyValue(name); |
---|
1685 | |
---|
1686 | function styleNull() { |
---|
1687 | this.style.removeProperty(name); |
---|
1688 | } |
---|
1689 | |
---|
1690 | function styleConstant() { |
---|
1691 | this.style.setProperty(name, value, priority); |
---|
1692 | } |
---|
1693 | |
---|
1694 | function styleFunction() { |
---|
1695 | var x = value.apply(this, arguments); |
---|
1696 | if (x == null) this.style.removeProperty(name); |
---|
1697 | else this.style.setProperty(name, x, priority); |
---|
1698 | } |
---|
1699 | |
---|
1700 | return this.each(value == null |
---|
1701 | ? styleNull : (typeof value === "function" |
---|
1702 | ? styleFunction : styleConstant)); |
---|
1703 | }; |
---|
1704 | d3_selectionPrototype.property = function(name, value) { |
---|
1705 | |
---|
1706 | // If no value is specified, return the first value. |
---|
1707 | if (arguments.length < 2) return this.node()[name]; |
---|
1708 | |
---|
1709 | function propertyNull() { |
---|
1710 | delete this[name]; |
---|
1711 | } |
---|
1712 | |
---|
1713 | function propertyConstant() { |
---|
1714 | this[name] = value; |
---|
1715 | } |
---|
1716 | |
---|
1717 | function propertyFunction() { |
---|
1718 | var x = value.apply(this, arguments); |
---|
1719 | if (x == null) delete this[name]; |
---|
1720 | else this[name] = x; |
---|
1721 | } |
---|
1722 | |
---|
1723 | return this.each(value == null |
---|
1724 | ? propertyNull : (typeof value === "function" |
---|
1725 | ? propertyFunction : propertyConstant)); |
---|
1726 | }; |
---|
1727 | d3_selectionPrototype.text = function(value) { |
---|
1728 | return arguments.length < 1 |
---|
1729 | ? this.node().textContent : this.each(typeof value === "function" |
---|
1730 | ? function() { var v = value.apply(this, arguments); this.textContent = v == null ? "" : v; } : value == null |
---|
1731 | ? function() { this.textContent = ""; } |
---|
1732 | : function() { this.textContent = value; }); |
---|
1733 | }; |
---|
1734 | d3_selectionPrototype.html = function(value) { |
---|
1735 | return arguments.length < 1 |
---|
1736 | ? this.node().innerHTML : this.each(typeof value === "function" |
---|
1737 | ? function() { var v = value.apply(this, arguments); this.innerHTML = v == null ? "" : v; } : value == null |
---|
1738 | ? function() { this.innerHTML = ""; } |
---|
1739 | : function() { this.innerHTML = value; }); |
---|
1740 | }; |
---|
1741 | // TODO append(node)? |
---|
1742 | // TODO append(function)? |
---|
1743 | d3_selectionPrototype.append = function(name) { |
---|
1744 | name = d3.ns.qualify(name); |
---|
1745 | |
---|
1746 | function append() { |
---|
1747 | return this.appendChild(document.createElementNS(this.namespaceURI, name)); |
---|
1748 | } |
---|
1749 | |
---|
1750 | function appendNS() { |
---|
1751 | return this.appendChild(document.createElementNS(name.space, name.local)); |
---|
1752 | } |
---|
1753 | |
---|
1754 | return this.select(name.local ? appendNS : append); |
---|
1755 | }; |
---|
1756 | // TODO insert(node, function)? |
---|
1757 | // TODO insert(function, string)? |
---|
1758 | // TODO insert(function, function)? |
---|
1759 | d3_selectionPrototype.insert = function(name, before) { |
---|
1760 | name = d3.ns.qualify(name); |
---|
1761 | |
---|
1762 | function insert() { |
---|
1763 | return this.insertBefore( |
---|
1764 | document.createElementNS(this.namespaceURI, name), |
---|
1765 | d3_select(before, this)); |
---|
1766 | } |
---|
1767 | |
---|
1768 | function insertNS() { |
---|
1769 | return this.insertBefore( |
---|
1770 | document.createElementNS(name.space, name.local), |
---|
1771 | d3_select(before, this)); |
---|
1772 | } |
---|
1773 | |
---|
1774 | return this.select(name.local ? insertNS : insert); |
---|
1775 | }; |
---|
1776 | // TODO remove(selector)? |
---|
1777 | // TODO remove(node)? |
---|
1778 | // TODO remove(function)? |
---|
1779 | d3_selectionPrototype.remove = function() { |
---|
1780 | return this.each(function() { |
---|
1781 | var parent = this.parentNode; |
---|
1782 | if (parent) parent.removeChild(this); |
---|
1783 | }); |
---|
1784 | }; |
---|
1785 | d3_selectionPrototype.data = function(value, key) { |
---|
1786 | var i = -1, |
---|
1787 | n = this.length, |
---|
1788 | group, |
---|
1789 | node; |
---|
1790 | |
---|
1791 | // If no value is specified, return the first value. |
---|
1792 | if (!arguments.length) { |
---|
1793 | value = new Array(n = (group = this[0]).length); |
---|
1794 | while (++i < n) { |
---|
1795 | if (node = group[i]) { |
---|
1796 | value[i] = node.__data__; |
---|
1797 | } |
---|
1798 | } |
---|
1799 | return value; |
---|
1800 | } |
---|
1801 | |
---|
1802 | function bind(group, groupData) { |
---|
1803 | var i, |
---|
1804 | n = group.length, |
---|
1805 | m = groupData.length, |
---|
1806 | n0 = Math.min(n, m), |
---|
1807 | n1 = Math.max(n, m), |
---|
1808 | updateNodes = [], |
---|
1809 | enterNodes = [], |
---|
1810 | exitNodes = [], |
---|
1811 | node, |
---|
1812 | nodeData; |
---|
1813 | |
---|
1814 | if (key) { |
---|
1815 | var nodeByKeyValue = new d3_Map, |
---|
1816 | keyValues = [], |
---|
1817 | keyValue, |
---|
1818 | j = groupData.length; |
---|
1819 | |
---|
1820 | for (i = -1; ++i < n;) { |
---|
1821 | keyValue = key.call(node = group[i], node.__data__, i); |
---|
1822 | if (nodeByKeyValue.has(keyValue)) { |
---|
1823 | exitNodes[j++] = node; // duplicate key |
---|
1824 | } else { |
---|
1825 | nodeByKeyValue.set(keyValue, node); |
---|
1826 | } |
---|
1827 | keyValues.push(keyValue); |
---|
1828 | } |
---|
1829 | |
---|
1830 | for (i = -1; ++i < m;) { |
---|
1831 | keyValue = key.call(groupData, nodeData = groupData[i], i) |
---|
1832 | if (nodeByKeyValue.has(keyValue)) { |
---|
1833 | updateNodes[i] = node = nodeByKeyValue.get(keyValue); |
---|
1834 | node.__data__ = nodeData; |
---|
1835 | enterNodes[i] = exitNodes[i] = null; |
---|
1836 | } else { |
---|
1837 | enterNodes[i] = d3_selection_dataNode(nodeData); |
---|
1838 | updateNodes[i] = exitNodes[i] = null; |
---|
1839 | } |
---|
1840 | nodeByKeyValue.remove(keyValue); |
---|
1841 | } |
---|
1842 | |
---|
1843 | for (i = -1; ++i < n;) { |
---|
1844 | if (nodeByKeyValue.has(keyValues[i])) { |
---|
1845 | exitNodes[i] = group[i]; |
---|
1846 | } |
---|
1847 | } |
---|
1848 | } else { |
---|
1849 | for (i = -1; ++i < n0;) { |
---|
1850 | node = group[i]; |
---|
1851 | nodeData = groupData[i]; |
---|
1852 | if (node) { |
---|
1853 | node.__data__ = nodeData; |
---|
1854 | updateNodes[i] = node; |
---|
1855 | enterNodes[i] = exitNodes[i] = null; |
---|
1856 | } else { |
---|
1857 | enterNodes[i] = d3_selection_dataNode(nodeData); |
---|
1858 | updateNodes[i] = exitNodes[i] = null; |
---|
1859 | } |
---|
1860 | } |
---|
1861 | for (; i < m; ++i) { |
---|
1862 | enterNodes[i] = d3_selection_dataNode(groupData[i]); |
---|
1863 | updateNodes[i] = exitNodes[i] = null; |
---|
1864 | } |
---|
1865 | for (; i < n1; ++i) { |
---|
1866 | exitNodes[i] = group[i]; |
---|
1867 | enterNodes[i] = updateNodes[i] = null; |
---|
1868 | } |
---|
1869 | } |
---|
1870 | |
---|
1871 | enterNodes.update |
---|
1872 | = updateNodes; |
---|
1873 | |
---|
1874 | enterNodes.parentNode |
---|
1875 | = updateNodes.parentNode |
---|
1876 | = exitNodes.parentNode |
---|
1877 | = group.parentNode; |
---|
1878 | |
---|
1879 | enter.push(enterNodes); |
---|
1880 | update.push(updateNodes); |
---|
1881 | exit.push(exitNodes); |
---|
1882 | } |
---|
1883 | |
---|
1884 | var enter = d3_selection_enter([]), |
---|
1885 | update = d3_selection([]), |
---|
1886 | exit = d3_selection([]); |
---|
1887 | |
---|
1888 | if (typeof value === "function") { |
---|
1889 | while (++i < n) { |
---|
1890 | bind(group = this[i], value.call(group, group.parentNode.__data__, i)); |
---|
1891 | } |
---|
1892 | } else { |
---|
1893 | while (++i < n) { |
---|
1894 | bind(group = this[i], value); |
---|
1895 | } |
---|
1896 | } |
---|
1897 | |
---|
1898 | update.enter = function() { return enter; }; |
---|
1899 | update.exit = function() { return exit; }; |
---|
1900 | return update; |
---|
1901 | }; |
---|
1902 | |
---|
1903 | function d3_selection_dataNode(data) { |
---|
1904 | return {__data__: data}; |
---|
1905 | } |
---|
1906 | d3_selectionPrototype.datum = |
---|
1907 | d3_selectionPrototype.map = function(value) { |
---|
1908 | return arguments.length < 1 |
---|
1909 | ? this.property("__data__") |
---|
1910 | : this.property("__data__", value); |
---|
1911 | }; |
---|
1912 | d3_selectionPrototype.filter = function(filter) { |
---|
1913 | var subgroups = [], |
---|
1914 | subgroup, |
---|
1915 | group, |
---|
1916 | node; |
---|
1917 | |
---|
1918 | if (typeof filter !== "function") filter = d3_selection_filter(filter); |
---|
1919 | |
---|
1920 | for (var j = 0, m = this.length; j < m; j++) { |
---|
1921 | subgroups.push(subgroup = []); |
---|
1922 | subgroup.parentNode = (group = this[j]).parentNode; |
---|
1923 | for (var i = 0, n = group.length; i < n; i++) { |
---|
1924 | if ((node = group[i]) && filter.call(node, node.__data__, i)) { |
---|
1925 | subgroup.push(node); |
---|
1926 | } |
---|
1927 | } |
---|
1928 | } |
---|
1929 | |
---|
1930 | return d3_selection(subgroups); |
---|
1931 | }; |
---|
1932 | |
---|
1933 | function d3_selection_filter(selector) { |
---|
1934 | return function() { |
---|
1935 | return d3_selectMatches(this, selector); |
---|
1936 | }; |
---|
1937 | } |
---|
1938 | d3_selectionPrototype.order = function() { |
---|
1939 | for (var j = -1, m = this.length; ++j < m;) { |
---|
1940 | for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0;) { |
---|
1941 | if (node = group[i]) { |
---|
1942 | if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next); |
---|
1943 | next = node; |
---|
1944 | } |
---|
1945 | } |
---|
1946 | } |
---|
1947 | return this; |
---|
1948 | }; |
---|
1949 | d3_selectionPrototype.sort = function(comparator) { |
---|
1950 | comparator = d3_selection_sortComparator.apply(this, arguments); |
---|
1951 | for (var j = -1, m = this.length; ++j < m;) this[j].sort(comparator); |
---|
1952 | return this.order(); |
---|
1953 | }; |
---|
1954 | |
---|
1955 | function d3_selection_sortComparator(comparator) { |
---|
1956 | if (!arguments.length) comparator = d3.ascending; |
---|
1957 | return function(a, b) { |
---|
1958 | return comparator(a && a.__data__, b && b.__data__); |
---|
1959 | }; |
---|
1960 | } |
---|
1961 | // type can be namespaced, e.g., "click.foo" |
---|
1962 | // listener can be null for removal |
---|
1963 | d3_selectionPrototype.on = function(type, listener, capture) { |
---|
1964 | if (arguments.length < 3) capture = false; |
---|
1965 | |
---|
1966 | // parse the type specifier |
---|
1967 | var name = "__on" + type, i = type.indexOf("."); |
---|
1968 | if (i > 0) type = type.substring(0, i); |
---|
1969 | |
---|
1970 | // if called with only one argument, return the current listener |
---|
1971 | if (arguments.length < 2) return (i = this.node()[name]) && i._; |
---|
1972 | |
---|
1973 | // remove the old event listener, and add the new event listener |
---|
1974 | return this.each(function(d, i) { |
---|
1975 | var node = this, |
---|
1976 | o = node[name]; |
---|
1977 | |
---|
1978 | // remove the old listener, if any (using the previously-set capture) |
---|
1979 | if (o) { |
---|
1980 | node.removeEventListener(type, o, o.$); |
---|
1981 | delete node[name]; |
---|
1982 | } |
---|
1983 | |
---|
1984 | // add the new listener, if any (remembering the capture flag) |
---|
1985 | if (listener) { |
---|
1986 | node.addEventListener(type, node[name] = l, l.$ = capture); |
---|
1987 | l._ = listener; // stash the unwrapped listener for get |
---|
1988 | } |
---|
1989 | |
---|
1990 | // wrapped event listener that preserves i |
---|
1991 | function l(e) { |
---|
1992 | var o = d3.event; // Events can be reentrant (e.g., focus). |
---|
1993 | d3.event = e; |
---|
1994 | try { |
---|
1995 | listener.call(node, node.__data__, i); |
---|
1996 | } finally { |
---|
1997 | d3.event = o; |
---|
1998 | } |
---|
1999 | } |
---|
2000 | }); |
---|
2001 | }; |
---|
2002 | d3_selectionPrototype.each = function(callback) { |
---|
2003 | for (var j = -1, m = this.length; ++j < m;) { |
---|
2004 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
2005 | var node = group[i]; |
---|
2006 | if (node) callback.call(node, node.__data__, i, j); |
---|
2007 | } |
---|
2008 | } |
---|
2009 | return this; |
---|
2010 | }; |
---|
2011 | // |
---|
2012 | // Note: assigning to the arguments array simultaneously changes the value of |
---|
2013 | // the corresponding argument! |
---|
2014 | // |
---|
2015 | // TODO The `this` argument probably shouldn't be the first argument to the |
---|
2016 | // callback, anyway, since it's redundant. However, that will require a major |
---|
2017 | // version bump due to backwards compatibility, so I'm not changing it right |
---|
2018 | // away. |
---|
2019 | // |
---|
2020 | d3_selectionPrototype.call = function(callback) { |
---|
2021 | callback.apply(this, (arguments[0] = this, arguments)); |
---|
2022 | return this; |
---|
2023 | }; |
---|
2024 | d3_selectionPrototype.empty = function() { |
---|
2025 | return !this.node(); |
---|
2026 | }; |
---|
2027 | d3_selectionPrototype.node = function(callback) { |
---|
2028 | for (var j = 0, m = this.length; j < m; j++) { |
---|
2029 | for (var group = this[j], i = 0, n = group.length; i < n; i++) { |
---|
2030 | var node = group[i]; |
---|
2031 | if (node) return node; |
---|
2032 | } |
---|
2033 | } |
---|
2034 | return null; |
---|
2035 | }; |
---|
2036 | d3_selectionPrototype.transition = function() { |
---|
2037 | var subgroups = [], |
---|
2038 | subgroup, |
---|
2039 | node; |
---|
2040 | |
---|
2041 | for (var j = -1, m = this.length; ++j < m;) { |
---|
2042 | subgroups.push(subgroup = []); |
---|
2043 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
2044 | subgroup.push((node = group[i]) ? {node: node, delay: d3_transitionDelay, duration: d3_transitionDuration} : null); |
---|
2045 | } |
---|
2046 | } |
---|
2047 | |
---|
2048 | return d3_transition(subgroups, d3_transitionId || ++d3_transitionNextId, Date.now()); |
---|
2049 | }; |
---|
2050 | var d3_selectionRoot = d3_selection([[document]]); |
---|
2051 | |
---|
2052 | d3_selectionRoot[0].parentNode = d3_selectRoot; |
---|
2053 | |
---|
2054 | // TODO fast singleton implementation! |
---|
2055 | // TODO select(function) |
---|
2056 | d3.select = function(selector) { |
---|
2057 | return typeof selector === "string" |
---|
2058 | ? d3_selectionRoot.select(selector) |
---|
2059 | : d3_selection([[selector]]); // assume node |
---|
2060 | }; |
---|
2061 | |
---|
2062 | // TODO selectAll(function) |
---|
2063 | d3.selectAll = function(selector) { |
---|
2064 | return typeof selector === "string" |
---|
2065 | ? d3_selectionRoot.selectAll(selector) |
---|
2066 | : d3_selection([d3_array(selector)]); // assume node[] |
---|
2067 | }; |
---|
2068 | function d3_selection_enter(selection) { |
---|
2069 | d3_arraySubclass(selection, d3_selection_enterPrototype); |
---|
2070 | return selection; |
---|
2071 | } |
---|
2072 | |
---|
2073 | var d3_selection_enterPrototype = []; |
---|
2074 | |
---|
2075 | d3.selection.enter = d3_selection_enter; |
---|
2076 | d3.selection.enter.prototype = d3_selection_enterPrototype; |
---|
2077 | |
---|
2078 | d3_selection_enterPrototype.append = d3_selectionPrototype.append; |
---|
2079 | d3_selection_enterPrototype.insert = d3_selectionPrototype.insert; |
---|
2080 | d3_selection_enterPrototype.empty = d3_selectionPrototype.empty; |
---|
2081 | d3_selection_enterPrototype.node = d3_selectionPrototype.node; |
---|
2082 | d3_selection_enterPrototype.select = function(selector) { |
---|
2083 | var subgroups = [], |
---|
2084 | subgroup, |
---|
2085 | subnode, |
---|
2086 | upgroup, |
---|
2087 | group, |
---|
2088 | node; |
---|
2089 | |
---|
2090 | for (var j = -1, m = this.length; ++j < m;) { |
---|
2091 | upgroup = (group = this[j]).update; |
---|
2092 | subgroups.push(subgroup = []); |
---|
2093 | subgroup.parentNode = group.parentNode; |
---|
2094 | for (var i = -1, n = group.length; ++i < n;) { |
---|
2095 | if (node = group[i]) { |
---|
2096 | subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i)); |
---|
2097 | subnode.__data__ = node.__data__; |
---|
2098 | } else { |
---|
2099 | subgroup.push(null); |
---|
2100 | } |
---|
2101 | } |
---|
2102 | } |
---|
2103 | |
---|
2104 | return d3_selection(subgroups); |
---|
2105 | }; |
---|
2106 | function d3_transition(groups, id, time) { |
---|
2107 | d3_arraySubclass(groups, d3_transitionPrototype); |
---|
2108 | |
---|
2109 | var tweens = new d3_Map, |
---|
2110 | event = d3.dispatch("start", "end"), |
---|
2111 | ease = d3_transitionEase; |
---|
2112 | |
---|
2113 | groups.id = id; |
---|
2114 | |
---|
2115 | groups.time = time; |
---|
2116 | |
---|
2117 | groups.tween = function(name, tween) { |
---|
2118 | if (arguments.length < 2) return tweens.get(name); |
---|
2119 | if (tween == null) tweens.remove(name); |
---|
2120 | else tweens.set(name, tween); |
---|
2121 | return groups; |
---|
2122 | }; |
---|
2123 | |
---|
2124 | groups.ease = function(value) { |
---|
2125 | if (!arguments.length) return ease; |
---|
2126 | ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments); |
---|
2127 | return groups; |
---|
2128 | }; |
---|
2129 | |
---|
2130 | groups.each = function(type, listener) { |
---|
2131 | if (arguments.length < 2) return d3_transition_each.call(groups, type); |
---|
2132 | event.on(type, listener); |
---|
2133 | return groups; |
---|
2134 | }; |
---|
2135 | |
---|
2136 | d3.timer(function(elapsed) { |
---|
2137 | groups.each(function(d, i, j) { |
---|
2138 | var tweened = [], |
---|
2139 | node = this, |
---|
2140 | delay = groups[j][i].delay, |
---|
2141 | duration = groups[j][i].duration, |
---|
2142 | lock = node.__transition__ || (node.__transition__ = {active: 0, count: 0}); |
---|
2143 | |
---|
2144 | ++lock.count; |
---|
2145 | |
---|
2146 | delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time); |
---|
2147 | |
---|
2148 | function start(elapsed) { |
---|
2149 | if (lock.active > id) return stop(); |
---|
2150 | lock.active = id; |
---|
2151 | |
---|
2152 | tweens.forEach(function(key, value) { |
---|
2153 | if (tween = value.call(node, d, i)) { |
---|
2154 | tweened.push(tween); |
---|
2155 | } |
---|
2156 | }); |
---|
2157 | |
---|
2158 | event.start.call(node, d, i); |
---|
2159 | if (!tick(elapsed)) d3.timer(tick, 0, time); |
---|
2160 | return 1; |
---|
2161 | } |
---|
2162 | |
---|
2163 | function tick(elapsed) { |
---|
2164 | if (lock.active !== id) return stop(); |
---|
2165 | |
---|
2166 | var t = (elapsed - delay) / duration, |
---|
2167 | e = ease(t), |
---|
2168 | n = tweened.length; |
---|
2169 | |
---|
2170 | while (n > 0) { |
---|
2171 | tweened[--n].call(node, e); |
---|
2172 | } |
---|
2173 | |
---|
2174 | if (t >= 1) { |
---|
2175 | stop(); |
---|
2176 | d3_transitionId = id; |
---|
2177 | event.end.call(node, d, i); |
---|
2178 | d3_transitionId = 0; |
---|
2179 | return 1; |
---|
2180 | } |
---|
2181 | } |
---|
2182 | |
---|
2183 | function stop() { |
---|
2184 | if (!--lock.count) delete node.__transition__; |
---|
2185 | return 1; |
---|
2186 | } |
---|
2187 | }); |
---|
2188 | return 1; |
---|
2189 | }, 0, time); |
---|
2190 | |
---|
2191 | return groups; |
---|
2192 | } |
---|
2193 | |
---|
2194 | var d3_transitionRemove = {}; |
---|
2195 | |
---|
2196 | function d3_transitionNull(d, i, a) { |
---|
2197 | return a != "" && d3_transitionRemove; |
---|
2198 | } |
---|
2199 | |
---|
2200 | function d3_transitionTween(name, b) { |
---|
2201 | var interpolate = d3_interpolateByName(name); |
---|
2202 | |
---|
2203 | function transitionFunction(d, i, a) { |
---|
2204 | var v = b.call(this, d, i); |
---|
2205 | return v == null |
---|
2206 | ? a != "" && d3_transitionRemove |
---|
2207 | : a != v && interpolate(a, v); |
---|
2208 | } |
---|
2209 | |
---|
2210 | function transitionString(d, i, a) { |
---|
2211 | return a != b && interpolate(a, b); |
---|
2212 | } |
---|
2213 | |
---|
2214 | return typeof b === "function" ? transitionFunction |
---|
2215 | : b == null ? d3_transitionNull |
---|
2216 | : (b += "", transitionString); |
---|
2217 | } |
---|
2218 | |
---|
2219 | var d3_transitionPrototype = [], |
---|
2220 | d3_transitionNextId = 0, |
---|
2221 | d3_transitionId = 0, |
---|
2222 | d3_transitionDefaultDelay = 0, |
---|
2223 | d3_transitionDefaultDuration = 250, |
---|
2224 | d3_transitionDefaultEase = d3.ease("cubic-in-out"), |
---|
2225 | d3_transitionDelay = d3_transitionDefaultDelay, |
---|
2226 | d3_transitionDuration = d3_transitionDefaultDuration, |
---|
2227 | d3_transitionEase = d3_transitionDefaultEase; |
---|
2228 | |
---|
2229 | d3_transitionPrototype.call = d3_selectionPrototype.call; |
---|
2230 | |
---|
2231 | d3.transition = function(selection) { |
---|
2232 | return arguments.length |
---|
2233 | ? (d3_transitionId ? selection.transition() : selection) |
---|
2234 | : d3_selectionRoot.transition(); |
---|
2235 | }; |
---|
2236 | |
---|
2237 | d3.transition.prototype = d3_transitionPrototype; |
---|
2238 | d3_transitionPrototype.select = function(selector) { |
---|
2239 | var subgroups = [], |
---|
2240 | subgroup, |
---|
2241 | subnode, |
---|
2242 | node; |
---|
2243 | |
---|
2244 | if (typeof selector !== "function") selector = d3_selection_selector(selector); |
---|
2245 | |
---|
2246 | for (var j = -1, m = this.length; ++j < m;) { |
---|
2247 | subgroups.push(subgroup = []); |
---|
2248 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
2249 | if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) { |
---|
2250 | if ("__data__" in node.node) subnode.__data__ = node.node.__data__; |
---|
2251 | subgroup.push({node: subnode, delay: node.delay, duration: node.duration}); |
---|
2252 | } else { |
---|
2253 | subgroup.push(null); |
---|
2254 | } |
---|
2255 | } |
---|
2256 | } |
---|
2257 | |
---|
2258 | return d3_transition(subgroups, this.id, this.time).ease(this.ease()); |
---|
2259 | }; |
---|
2260 | d3_transitionPrototype.selectAll = function(selector) { |
---|
2261 | var subgroups = [], |
---|
2262 | subgroup, |
---|
2263 | subnodes, |
---|
2264 | node; |
---|
2265 | |
---|
2266 | if (typeof selector !== "function") selector = d3_selection_selectorAll(selector); |
---|
2267 | |
---|
2268 | for (var j = -1, m = this.length; ++j < m;) { |
---|
2269 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
2270 | if (node = group[i]) { |
---|
2271 | subnodes = selector.call(node.node, node.node.__data__, i); |
---|
2272 | subgroups.push(subgroup = []); |
---|
2273 | for (var k = -1, o = subnodes.length; ++k < o;) { |
---|
2274 | subgroup.push({node: subnodes[k], delay: node.delay, duration: node.duration}); |
---|
2275 | } |
---|
2276 | } |
---|
2277 | } |
---|
2278 | } |
---|
2279 | |
---|
2280 | return d3_transition(subgroups, this.id, this.time).ease(this.ease()); |
---|
2281 | }; |
---|
2282 | d3_transitionPrototype.attr = function(name, value) { |
---|
2283 | return this.attrTween(name, d3_transitionTween(name, value)); |
---|
2284 | }; |
---|
2285 | |
---|
2286 | d3_transitionPrototype.attrTween = function(nameNS, tween) { |
---|
2287 | var name = d3.ns.qualify(nameNS); |
---|
2288 | |
---|
2289 | function attrTween(d, i) { |
---|
2290 | var f = tween.call(this, d, i, this.getAttribute(name)); |
---|
2291 | return f === d3_transitionRemove |
---|
2292 | ? (this.removeAttribute(name), null) |
---|
2293 | : f && function(t) { this.setAttribute(name, f(t)); }; |
---|
2294 | } |
---|
2295 | |
---|
2296 | function attrTweenNS(d, i) { |
---|
2297 | var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local)); |
---|
2298 | return f === d3_transitionRemove |
---|
2299 | ? (this.removeAttributeNS(name.space, name.local), null) |
---|
2300 | : f && function(t) { this.setAttributeNS(name.space, name.local, f(t)); }; |
---|
2301 | } |
---|
2302 | |
---|
2303 | return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween); |
---|
2304 | }; |
---|
2305 | d3_transitionPrototype.style = function(name, value, priority) { |
---|
2306 | if (arguments.length < 3) priority = ""; |
---|
2307 | return this.styleTween(name, d3_transitionTween(name, value), priority); |
---|
2308 | }; |
---|
2309 | |
---|
2310 | d3_transitionPrototype.styleTween = function(name, tween, priority) { |
---|
2311 | if (arguments.length < 3) priority = ""; |
---|
2312 | return this.tween("style." + name, function(d, i) { |
---|
2313 | var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name)); |
---|
2314 | return f === d3_transitionRemove |
---|
2315 | ? (this.style.removeProperty(name), null) |
---|
2316 | : f && function(t) { this.style.setProperty(name, f(t), priority); }; |
---|
2317 | }); |
---|
2318 | }; |
---|
2319 | d3_transitionPrototype.text = function(value) { |
---|
2320 | return this.tween("text", function(d, i) { |
---|
2321 | this.textContent = typeof value === "function" |
---|
2322 | ? value.call(this, d, i) |
---|
2323 | : value; |
---|
2324 | }); |
---|
2325 | }; |
---|
2326 | d3_transitionPrototype.remove = function() { |
---|
2327 | return this.each("end.transition", function() { |
---|
2328 | var p; |
---|
2329 | if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this); |
---|
2330 | }); |
---|
2331 | }; |
---|
2332 | d3_transitionPrototype.delay = function(value) { |
---|
2333 | var groups = this; |
---|
2334 | return groups.each(typeof value === "function" |
---|
2335 | ? function(d, i, j) { groups[j][i].delay = value.apply(this, arguments) | 0; } |
---|
2336 | : (value = value | 0, function(d, i, j) { groups[j][i].delay = value; })); |
---|
2337 | }; |
---|
2338 | d3_transitionPrototype.duration = function(value) { |
---|
2339 | var groups = this; |
---|
2340 | return groups.each(typeof value === "function" |
---|
2341 | ? function(d, i, j) { groups[j][i].duration = Math.max(1, value.apply(this, arguments) | 0); } |
---|
2342 | : (value = Math.max(1, value | 0), function(d, i, j) { groups[j][i].duration = value; })); |
---|
2343 | }; |
---|
2344 | function d3_transition_each(callback) { |
---|
2345 | var id = d3_transitionId, |
---|
2346 | ease = d3_transitionEase, |
---|
2347 | delay = d3_transitionDelay, |
---|
2348 | duration = d3_transitionDuration; |
---|
2349 | |
---|
2350 | d3_transitionId = this.id; |
---|
2351 | d3_transitionEase = this.ease(); |
---|
2352 | for (var j = 0, m = this.length; j < m; j++) { |
---|
2353 | for (var group = this[j], i = 0, n = group.length; i < n; i++) { |
---|
2354 | var node = group[i]; |
---|
2355 | if (node) { |
---|
2356 | d3_transitionDelay = this[j][i].delay; |
---|
2357 | d3_transitionDuration = this[j][i].duration; |
---|
2358 | callback.call(node = node.node, node.__data__, i, j); |
---|
2359 | } |
---|
2360 | } |
---|
2361 | } |
---|
2362 | |
---|
2363 | d3_transitionId = id; |
---|
2364 | d3_transitionEase = ease; |
---|
2365 | d3_transitionDelay = delay; |
---|
2366 | d3_transitionDuration = duration; |
---|
2367 | return this; |
---|
2368 | } |
---|
2369 | d3_transitionPrototype.transition = function() { |
---|
2370 | return this.select(d3_this); |
---|
2371 | }; |
---|
2372 | var d3_timer_queue = null, |
---|
2373 | d3_timer_interval, // is an interval (or frame) active? |
---|
2374 | d3_timer_timeout; // is a timeout active? |
---|
2375 | |
---|
2376 | // The timer will continue to fire until callback returns true. |
---|
2377 | d3.timer = function(callback, delay, then) { |
---|
2378 | var found = false, |
---|
2379 | t0, |
---|
2380 | t1 = d3_timer_queue; |
---|
2381 | |
---|
2382 | if (arguments.length < 3) { |
---|
2383 | if (arguments.length < 2) delay = 0; |
---|
2384 | else if (!isFinite(delay)) return; |
---|
2385 | then = Date.now(); |
---|
2386 | } |
---|
2387 | |
---|
2388 | // See if the callback's already in the queue. |
---|
2389 | while (t1) { |
---|
2390 | if (t1.callback === callback) { |
---|
2391 | t1.then = then; |
---|
2392 | t1.delay = delay; |
---|
2393 | found = true; |
---|
2394 | break; |
---|
2395 | } |
---|
2396 | t0 = t1; |
---|
2397 | t1 = t1.next; |
---|
2398 | } |
---|
2399 | |
---|
2400 | // Otherwise, add the callback to the queue. |
---|
2401 | if (!found) d3_timer_queue = { |
---|
2402 | callback: callback, |
---|
2403 | then: then, |
---|
2404 | delay: delay, |
---|
2405 | next: d3_timer_queue |
---|
2406 | }; |
---|
2407 | |
---|
2408 | // Start animatin'! |
---|
2409 | if (!d3_timer_interval) { |
---|
2410 | d3_timer_timeout = clearTimeout(d3_timer_timeout); |
---|
2411 | d3_timer_interval = 1; |
---|
2412 | d3_timer_frame(d3_timer_step); |
---|
2413 | } |
---|
2414 | } |
---|
2415 | |
---|
2416 | function d3_timer_step() { |
---|
2417 | var elapsed, |
---|
2418 | now = Date.now(), |
---|
2419 | t1 = d3_timer_queue; |
---|
2420 | |
---|
2421 | while (t1) { |
---|
2422 | elapsed = now - t1.then; |
---|
2423 | if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed); |
---|
2424 | t1 = t1.next; |
---|
2425 | } |
---|
2426 | |
---|
2427 | var delay = d3_timer_flush() - now; |
---|
2428 | if (delay > 24) { |
---|
2429 | if (isFinite(delay)) { |
---|
2430 | clearTimeout(d3_timer_timeout); |
---|
2431 | d3_timer_timeout = setTimeout(d3_timer_step, delay); |
---|
2432 | } |
---|
2433 | d3_timer_interval = 0; |
---|
2434 | } else { |
---|
2435 | d3_timer_interval = 1; |
---|
2436 | d3_timer_frame(d3_timer_step); |
---|
2437 | } |
---|
2438 | } |
---|
2439 | |
---|
2440 | d3.timer.flush = function() { |
---|
2441 | var elapsed, |
---|
2442 | now = Date.now(), |
---|
2443 | t1 = d3_timer_queue; |
---|
2444 | |
---|
2445 | while (t1) { |
---|
2446 | elapsed = now - t1.then; |
---|
2447 | if (!t1.delay) t1.flush = t1.callback(elapsed); |
---|
2448 | t1 = t1.next; |
---|
2449 | } |
---|
2450 | |
---|
2451 | d3_timer_flush(); |
---|
2452 | }; |
---|
2453 | |
---|
2454 | // Flush after callbacks, to avoid concurrent queue modification. |
---|
2455 | function d3_timer_flush() { |
---|
2456 | var t0 = null, |
---|
2457 | t1 = d3_timer_queue, |
---|
2458 | then = Infinity; |
---|
2459 | while (t1) { |
---|
2460 | if (t1.flush) { |
---|
2461 | t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next; |
---|
2462 | } else { |
---|
2463 | then = Math.min(then, t1.then + t1.delay); |
---|
2464 | t1 = (t0 = t1).next; |
---|
2465 | } |
---|
2466 | } |
---|
2467 | return then; |
---|
2468 | } |
---|
2469 | |
---|
2470 | var d3_timer_frame = window.requestAnimationFrame |
---|
2471 | || window.webkitRequestAnimationFrame |
---|
2472 | || window.mozRequestAnimationFrame |
---|
2473 | || window.oRequestAnimationFrame |
---|
2474 | || window.msRequestAnimationFrame |
---|
2475 | || function(callback) { setTimeout(callback, 17); }; |
---|
2476 | d3.transform = function(string) { |
---|
2477 | var g = document.createElementNS(d3.ns.prefix.svg, "g"), |
---|
2478 | identity = {a: 1, b: 0, c: 0, d: 1, e: 0, f: 0}; |
---|
2479 | return (d3.transform = function(string) { |
---|
2480 | g.setAttribute("transform", string); |
---|
2481 | var t = g.transform.baseVal.consolidate(); |
---|
2482 | return new d3_transform(t ? t.matrix : identity); |
---|
2483 | })(string); |
---|
2484 | }; |
---|
2485 | |
---|
2486 | // Compute x-scale and normalize the first row. |
---|
2487 | // Compute shear and make second row orthogonal to first. |
---|
2488 | // Compute y-scale and normalize the second row. |
---|
2489 | // Finally, compute the rotation. |
---|
2490 | function d3_transform(m) { |
---|
2491 | var r0 = [m.a, m.b], |
---|
2492 | r1 = [m.c, m.d], |
---|
2493 | kx = d3_transformNormalize(r0), |
---|
2494 | kz = d3_transformDot(r0, r1), |
---|
2495 | ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0; |
---|
2496 | if (r0[0] * r1[1] < r1[0] * r0[1]) { |
---|
2497 | r0[0] *= -1; |
---|
2498 | r0[1] *= -1; |
---|
2499 | kx *= -1; |
---|
2500 | kz *= -1; |
---|
2501 | } |
---|
2502 | this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_transformDegrees; |
---|
2503 | this.translate = [m.e, m.f]; |
---|
2504 | this.scale = [kx, ky]; |
---|
2505 | this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0; |
---|
2506 | }; |
---|
2507 | |
---|
2508 | d3_transform.prototype.toString = function() { |
---|
2509 | return "translate(" + this.translate |
---|
2510 | + ")rotate(" + this.rotate |
---|
2511 | + ")skewX(" + this.skew |
---|
2512 | + ")scale(" + this.scale |
---|
2513 | + ")"; |
---|
2514 | }; |
---|
2515 | |
---|
2516 | function d3_transformDot(a, b) { |
---|
2517 | return a[0] * b[0] + a[1] * b[1]; |
---|
2518 | } |
---|
2519 | |
---|
2520 | function d3_transformNormalize(a) { |
---|
2521 | var k = Math.sqrt(d3_transformDot(a, a)); |
---|
2522 | if (k) { |
---|
2523 | a[0] /= k; |
---|
2524 | a[1] /= k; |
---|
2525 | } |
---|
2526 | return k; |
---|
2527 | } |
---|
2528 | |
---|
2529 | function d3_transformCombine(a, b, k) { |
---|
2530 | a[0] += k * b[0]; |
---|
2531 | a[1] += k * b[1]; |
---|
2532 | return a; |
---|
2533 | } |
---|
2534 | |
---|
2535 | var d3_transformDegrees = 180 / Math.PI; |
---|
2536 | d3.mouse = function(container) { |
---|
2537 | return d3_mousePoint(container, d3_eventSource()); |
---|
2538 | }; |
---|
2539 | |
---|
2540 | // https://bugs.webkit.org/show_bug.cgi?id=44083 |
---|
2541 | var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0; |
---|
2542 | |
---|
2543 | function d3_mousePoint(container, e) { |
---|
2544 | var svg = container.ownerSVGElement || container; |
---|
2545 | if (svg.createSVGPoint) { |
---|
2546 | var point = svg.createSVGPoint(); |
---|
2547 | if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) { |
---|
2548 | svg = d3.select(document.body) |
---|
2549 | .append("svg") |
---|
2550 | .style("position", "absolute") |
---|
2551 | .style("top", 0) |
---|
2552 | .style("left", 0); |
---|
2553 | var ctm = svg[0][0].getScreenCTM(); |
---|
2554 | d3_mouse_bug44083 = !(ctm.f || ctm.e); |
---|
2555 | svg.remove(); |
---|
2556 | } |
---|
2557 | if (d3_mouse_bug44083) { |
---|
2558 | point.x = e.pageX; |
---|
2559 | point.y = e.pageY; |
---|
2560 | } else { |
---|
2561 | point.x = e.clientX; |
---|
2562 | point.y = e.clientY; |
---|
2563 | } |
---|
2564 | point = point.matrixTransform(container.getScreenCTM().inverse()); |
---|
2565 | return [point.x, point.y]; |
---|
2566 | } |
---|
2567 | var rect = container.getBoundingClientRect(); |
---|
2568 | return [e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop]; |
---|
2569 | }; |
---|
2570 | d3.touches = function(container, touches) { |
---|
2571 | if (arguments.length < 2) touches = d3_eventSource().touches; |
---|
2572 | return touches ? d3_array(touches).map(function(touch) { |
---|
2573 | var point = d3_mousePoint(container, touch); |
---|
2574 | point.identifier = touch.identifier; |
---|
2575 | return point; |
---|
2576 | }) : []; |
---|
2577 | }; |
---|
2578 | function d3_noop() {} |
---|
2579 | d3.scale = {}; |
---|
2580 | |
---|
2581 | function d3_scaleExtent(domain) { |
---|
2582 | var start = domain[0], stop = domain[domain.length - 1]; |
---|
2583 | return start < stop ? [start, stop] : [stop, start]; |
---|
2584 | } |
---|
2585 | |
---|
2586 | function d3_scaleRange(scale) { |
---|
2587 | return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range()); |
---|
2588 | } |
---|
2589 | function d3_scale_nice(domain, nice) { |
---|
2590 | var i0 = 0, |
---|
2591 | i1 = domain.length - 1, |
---|
2592 | x0 = domain[i0], |
---|
2593 | x1 = domain[i1], |
---|
2594 | dx; |
---|
2595 | |
---|
2596 | if (x1 < x0) { |
---|
2597 | dx = i0; i0 = i1; i1 = dx; |
---|
2598 | dx = x0; x0 = x1; x1 = dx; |
---|
2599 | } |
---|
2600 | |
---|
2601 | if (dx = x1 - x0) { |
---|
2602 | nice = nice(dx); |
---|
2603 | domain[i0] = nice.floor(x0); |
---|
2604 | domain[i1] = nice.ceil(x1); |
---|
2605 | } |
---|
2606 | |
---|
2607 | return domain; |
---|
2608 | } |
---|
2609 | |
---|
2610 | function d3_scale_niceDefault() { |
---|
2611 | return Math; |
---|
2612 | } |
---|
2613 | d3.scale.linear = function() { |
---|
2614 | return d3_scale_linear([0, 1], [0, 1], d3.interpolate, false); |
---|
2615 | }; |
---|
2616 | |
---|
2617 | function d3_scale_linear(domain, range, interpolate, clamp) { |
---|
2618 | var output, |
---|
2619 | input; |
---|
2620 | |
---|
2621 | function rescale() { |
---|
2622 | var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, |
---|
2623 | uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber; |
---|
2624 | output = linear(domain, range, uninterpolate, interpolate); |
---|
2625 | input = linear(range, domain, uninterpolate, d3.interpolate); |
---|
2626 | return scale; |
---|
2627 | } |
---|
2628 | |
---|
2629 | function scale(x) { |
---|
2630 | return output(x); |
---|
2631 | } |
---|
2632 | |
---|
2633 | // Note: requires range is coercible to number! |
---|
2634 | scale.invert = function(y) { |
---|
2635 | return input(y); |
---|
2636 | }; |
---|
2637 | |
---|
2638 | scale.domain = function(x) { |
---|
2639 | if (!arguments.length) return domain; |
---|
2640 | domain = x.map(Number); |
---|
2641 | return rescale(); |
---|
2642 | }; |
---|
2643 | |
---|
2644 | scale.range = function(x) { |
---|
2645 | if (!arguments.length) return range; |
---|
2646 | range = x; |
---|
2647 | return rescale(); |
---|
2648 | }; |
---|
2649 | |
---|
2650 | scale.rangeRound = function(x) { |
---|
2651 | return scale.range(x).interpolate(d3.interpolateRound); |
---|
2652 | }; |
---|
2653 | |
---|
2654 | scale.clamp = function(x) { |
---|
2655 | if (!arguments.length) return clamp; |
---|
2656 | clamp = x; |
---|
2657 | return rescale(); |
---|
2658 | }; |
---|
2659 | |
---|
2660 | scale.interpolate = function(x) { |
---|
2661 | if (!arguments.length) return interpolate; |
---|
2662 | interpolate = x; |
---|
2663 | return rescale(); |
---|
2664 | }; |
---|
2665 | |
---|
2666 | scale.ticks = function(m) { |
---|
2667 | return d3_scale_linearTicks(domain, m); |
---|
2668 | }; |
---|
2669 | |
---|
2670 | scale.tickFormat = function(m) { |
---|
2671 | return d3_scale_linearTickFormat(domain, m); |
---|
2672 | }; |
---|
2673 | |
---|
2674 | scale.nice = function() { |
---|
2675 | d3_scale_nice(domain, d3_scale_linearNice); |
---|
2676 | return rescale(); |
---|
2677 | }; |
---|
2678 | |
---|
2679 | scale.copy = function() { |
---|
2680 | return d3_scale_linear(domain, range, interpolate, clamp); |
---|
2681 | }; |
---|
2682 | |
---|
2683 | return rescale(); |
---|
2684 | } |
---|
2685 | |
---|
2686 | function d3_scale_linearRebind(scale, linear) { |
---|
2687 | return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp"); |
---|
2688 | } |
---|
2689 | |
---|
2690 | function d3_scale_linearNice(dx) { |
---|
2691 | dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1); |
---|
2692 | return { |
---|
2693 | floor: function(x) { return Math.floor(x / dx) * dx; }, |
---|
2694 | ceil: function(x) { return Math.ceil(x / dx) * dx; } |
---|
2695 | }; |
---|
2696 | } |
---|
2697 | |
---|
2698 | function d3_scale_linearTickRange(domain, m) { |
---|
2699 | var extent = d3_scaleExtent(domain), |
---|
2700 | span = extent[1] - extent[0], |
---|
2701 | step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), |
---|
2702 | err = m / span * step; |
---|
2703 | |
---|
2704 | // Filter ticks to get closer to the desired count. |
---|
2705 | if (err <= .15) step *= 10; |
---|
2706 | else if (err <= .35) step *= 5; |
---|
2707 | else if (err <= .75) step *= 2; |
---|
2708 | |
---|
2709 | // Round start and stop values to step interval. |
---|
2710 | extent[0] = Math.ceil(extent[0] / step) * step; |
---|
2711 | extent[1] = Math.floor(extent[1] / step) * step + step * .5; // inclusive |
---|
2712 | extent[2] = step; |
---|
2713 | return extent; |
---|
2714 | } |
---|
2715 | |
---|
2716 | function d3_scale_linearTicks(domain, m) { |
---|
2717 | return d3.range.apply(d3, d3_scale_linearTickRange(domain, m)); |
---|
2718 | } |
---|
2719 | |
---|
2720 | function d3_scale_linearTickFormat(domain, m) { |
---|
2721 | return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f"); |
---|
2722 | } |
---|
2723 | function d3_scale_bilinear(domain, range, uninterpolate, interpolate) { |
---|
2724 | var u = uninterpolate(domain[0], domain[1]), |
---|
2725 | i = interpolate(range[0], range[1]); |
---|
2726 | return function(x) { |
---|
2727 | return i(u(x)); |
---|
2728 | }; |
---|
2729 | } |
---|
2730 | function d3_scale_polylinear(domain, range, uninterpolate, interpolate) { |
---|
2731 | var u = [], |
---|
2732 | i = [], |
---|
2733 | j = 0, |
---|
2734 | k = Math.min(domain.length, range.length) - 1; |
---|
2735 | |
---|
2736 | // Handle descending domains. |
---|
2737 | if (domain[k] < domain[0]) { |
---|
2738 | domain = domain.slice().reverse(); |
---|
2739 | range = range.slice().reverse(); |
---|
2740 | } |
---|
2741 | |
---|
2742 | while (++j <= k) { |
---|
2743 | u.push(uninterpolate(domain[j - 1], domain[j])); |
---|
2744 | i.push(interpolate(range[j - 1], range[j])); |
---|
2745 | } |
---|
2746 | |
---|
2747 | return function(x) { |
---|
2748 | var j = d3.bisect(domain, x, 1, k) - 1; |
---|
2749 | return i[j](u[j](x)); |
---|
2750 | }; |
---|
2751 | } |
---|
2752 | d3.scale.log = function() { |
---|
2753 | return d3_scale_log(d3.scale.linear(), d3_scale_logp); |
---|
2754 | }; |
---|
2755 | |
---|
2756 | function d3_scale_log(linear, log) { |
---|
2757 | var pow = log.pow; |
---|
2758 | |
---|
2759 | function scale(x) { |
---|
2760 | return linear(log(x)); |
---|
2761 | } |
---|
2762 | |
---|
2763 | scale.invert = function(x) { |
---|
2764 | return pow(linear.invert(x)); |
---|
2765 | }; |
---|
2766 | |
---|
2767 | scale.domain = function(x) { |
---|
2768 | if (!arguments.length) return linear.domain().map(pow); |
---|
2769 | log = x[0] < 0 ? d3_scale_logn : d3_scale_logp; |
---|
2770 | pow = log.pow; |
---|
2771 | linear.domain(x.map(log)); |
---|
2772 | return scale; |
---|
2773 | }; |
---|
2774 | |
---|
2775 | scale.nice = function() { |
---|
2776 | linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault)); |
---|
2777 | return scale; |
---|
2778 | }; |
---|
2779 | |
---|
2780 | scale.ticks = function() { |
---|
2781 | var extent = d3_scaleExtent(linear.domain()), |
---|
2782 | ticks = []; |
---|
2783 | if (extent.every(isFinite)) { |
---|
2784 | var i = Math.floor(extent[0]), |
---|
2785 | j = Math.ceil(extent[1]), |
---|
2786 | u = pow(extent[0]), |
---|
2787 | v = pow(extent[1]); |
---|
2788 | if (log === d3_scale_logn) { |
---|
2789 | ticks.push(pow(i)); |
---|
2790 | for (; i++ < j;) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k); |
---|
2791 | } else { |
---|
2792 | for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k); |
---|
2793 | ticks.push(pow(i)); |
---|
2794 | } |
---|
2795 | for (i = 0; ticks[i] < u; i++) {} // strip small values |
---|
2796 | for (j = ticks.length; ticks[j - 1] > v; j--) {} // strip big values |
---|
2797 | ticks = ticks.slice(i, j); |
---|
2798 | } |
---|
2799 | return ticks; |
---|
2800 | }; |
---|
2801 | |
---|
2802 | scale.tickFormat = function(n, format) { |
---|
2803 | if (arguments.length < 2) format = d3_scale_logFormat; |
---|
2804 | if (arguments.length < 1) return format; |
---|
2805 | var k = n / scale.ticks().length, |
---|
2806 | f = log === d3_scale_logn ? (e = -1e-12, Math.floor) : (e = 1e-12, Math.ceil), |
---|
2807 | e; |
---|
2808 | return function(d) { |
---|
2809 | return d / pow(f(log(d) + e)) < k ? format(d) : ""; |
---|
2810 | }; |
---|
2811 | }; |
---|
2812 | |
---|
2813 | scale.copy = function() { |
---|
2814 | return d3_scale_log(linear.copy(), log); |
---|
2815 | }; |
---|
2816 | |
---|
2817 | return d3_scale_linearRebind(scale, linear); |
---|
2818 | } |
---|
2819 | |
---|
2820 | var d3_scale_logFormat = d3.format(".0e"); |
---|
2821 | |
---|
2822 | function d3_scale_logp(x) { |
---|
2823 | return Math.log(x < 0 ? 0 : x) / Math.LN10; |
---|
2824 | } |
---|
2825 | |
---|
2826 | function d3_scale_logn(x) { |
---|
2827 | return -Math.log(x > 0 ? 0 : -x) / Math.LN10; |
---|
2828 | } |
---|
2829 | |
---|
2830 | d3_scale_logp.pow = function(x) { |
---|
2831 | return Math.pow(10, x); |
---|
2832 | }; |
---|
2833 | |
---|
2834 | d3_scale_logn.pow = function(x) { |
---|
2835 | return -Math.pow(10, -x); |
---|
2836 | }; |
---|
2837 | d3.scale.pow = function() { |
---|
2838 | return d3_scale_pow(d3.scale.linear(), 1); |
---|
2839 | }; |
---|
2840 | |
---|
2841 | function d3_scale_pow(linear, exponent) { |
---|
2842 | var powp = d3_scale_powPow(exponent), |
---|
2843 | powb = d3_scale_powPow(1 / exponent); |
---|
2844 | |
---|
2845 | function scale(x) { |
---|
2846 | return linear(powp(x)); |
---|
2847 | } |
---|
2848 | |
---|
2849 | scale.invert = function(x) { |
---|
2850 | return powb(linear.invert(x)); |
---|
2851 | }; |
---|
2852 | |
---|
2853 | scale.domain = function(x) { |
---|
2854 | if (!arguments.length) return linear.domain().map(powb); |
---|
2855 | linear.domain(x.map(powp)); |
---|
2856 | return scale; |
---|
2857 | }; |
---|
2858 | |
---|
2859 | scale.ticks = function(m) { |
---|
2860 | return d3_scale_linearTicks(scale.domain(), m); |
---|
2861 | }; |
---|
2862 | |
---|
2863 | scale.tickFormat = function(m) { |
---|
2864 | return d3_scale_linearTickFormat(scale.domain(), m); |
---|
2865 | }; |
---|
2866 | |
---|
2867 | scale.nice = function() { |
---|
2868 | return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice)); |
---|
2869 | }; |
---|
2870 | |
---|
2871 | scale.exponent = function(x) { |
---|
2872 | if (!arguments.length) return exponent; |
---|
2873 | var domain = scale.domain(); |
---|
2874 | powp = d3_scale_powPow(exponent = x); |
---|
2875 | powb = d3_scale_powPow(1 / exponent); |
---|
2876 | return scale.domain(domain); |
---|
2877 | }; |
---|
2878 | |
---|
2879 | scale.copy = function() { |
---|
2880 | return d3_scale_pow(linear.copy(), exponent); |
---|
2881 | }; |
---|
2882 | |
---|
2883 | return d3_scale_linearRebind(scale, linear); |
---|
2884 | } |
---|
2885 | |
---|
2886 | function d3_scale_powPow(e) { |
---|
2887 | return function(x) { |
---|
2888 | return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e); |
---|
2889 | }; |
---|
2890 | } |
---|
2891 | d3.scale.sqrt = function() { |
---|
2892 | return d3.scale.pow().exponent(.5); |
---|
2893 | }; |
---|
2894 | d3.scale.ordinal = function() { |
---|
2895 | return d3_scale_ordinal([], {t: "range", x: []}); |
---|
2896 | }; |
---|
2897 | |
---|
2898 | function d3_scale_ordinal(domain, ranger) { |
---|
2899 | var index, |
---|
2900 | range, |
---|
2901 | rangeBand; |
---|
2902 | |
---|
2903 | function scale(x) { |
---|
2904 | return range[((index.get(x) || index.set(x, domain.push(x))) - 1) % range.length]; |
---|
2905 | } |
---|
2906 | |
---|
2907 | function steps(start, step) { |
---|
2908 | return d3.range(domain.length).map(function(i) { return start + step * i; }); |
---|
2909 | } |
---|
2910 | |
---|
2911 | scale.domain = function(x) { |
---|
2912 | if (!arguments.length) return domain; |
---|
2913 | domain = []; |
---|
2914 | index = new d3_Map; |
---|
2915 | var i = -1, n = x.length, xi; |
---|
2916 | while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi)); |
---|
2917 | return scale[ranger.t](ranger.x, ranger.p); |
---|
2918 | }; |
---|
2919 | |
---|
2920 | scale.range = function(x) { |
---|
2921 | if (!arguments.length) return range; |
---|
2922 | range = x; |
---|
2923 | rangeBand = 0; |
---|
2924 | ranger = {t: "range", x: x}; |
---|
2925 | return scale; |
---|
2926 | }; |
---|
2927 | |
---|
2928 | scale.rangePoints = function(x, padding) { |
---|
2929 | if (arguments.length < 2) padding = 0; |
---|
2930 | var start = x[0], |
---|
2931 | stop = x[1], |
---|
2932 | step = (stop - start) / (domain.length - 1 + padding); |
---|
2933 | range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step); |
---|
2934 | rangeBand = 0; |
---|
2935 | ranger = {t: "rangePoints", x: x, p: padding}; |
---|
2936 | return scale; |
---|
2937 | }; |
---|
2938 | |
---|
2939 | scale.rangeBands = function(x, padding) { |
---|
2940 | if (arguments.length < 2) padding = 0; |
---|
2941 | var reverse = x[1] < x[0], |
---|
2942 | start = x[reverse - 0], |
---|
2943 | stop = x[1 - reverse], |
---|
2944 | step = (stop - start) / (domain.length + padding); |
---|
2945 | range = steps(start + step * padding, step); |
---|
2946 | if (reverse) range.reverse(); |
---|
2947 | rangeBand = step * (1 - padding); |
---|
2948 | ranger = {t: "rangeBands", x: x, p: padding}; |
---|
2949 | return scale; |
---|
2950 | }; |
---|
2951 | |
---|
2952 | scale.rangeRoundBands = function(x, padding) { |
---|
2953 | if (arguments.length < 2) padding = 0; |
---|
2954 | var reverse = x[1] < x[0], |
---|
2955 | start = x[reverse - 0], |
---|
2956 | stop = x[1 - reverse], |
---|
2957 | step = Math.floor((stop - start) / (domain.length + padding)), |
---|
2958 | error = stop - start - (domain.length - padding) * step; |
---|
2959 | range = steps(start + Math.round(error / 2), step); |
---|
2960 | if (reverse) range.reverse(); |
---|
2961 | rangeBand = Math.round(step * (1 - padding)); |
---|
2962 | ranger = {t: "rangeRoundBands", x: x, p: padding}; |
---|
2963 | return scale; |
---|
2964 | }; |
---|
2965 | |
---|
2966 | scale.rangeBand = function() { |
---|
2967 | return rangeBand; |
---|
2968 | }; |
---|
2969 | |
---|
2970 | scale.rangeExtent = function() { |
---|
2971 | return d3_scaleExtent(ranger.x); |
---|
2972 | }; |
---|
2973 | |
---|
2974 | scale.copy = function() { |
---|
2975 | return d3_scale_ordinal(domain, ranger); |
---|
2976 | }; |
---|
2977 | |
---|
2978 | return scale.domain(domain); |
---|
2979 | } |
---|
2980 | /* |
---|
2981 | * This product includes color specifications and designs developed by Cynthia |
---|
2982 | * Brewer (http://colorbrewer.org/). See lib/colorbrewer for more information. |
---|
2983 | */ |
---|
2984 | |
---|
2985 | d3.scale.category10 = function() { |
---|
2986 | return d3.scale.ordinal().range(d3_category10); |
---|
2987 | }; |
---|
2988 | |
---|
2989 | d3.scale.category20 = function() { |
---|
2990 | return d3.scale.ordinal().range(d3_category20); |
---|
2991 | }; |
---|
2992 | |
---|
2993 | d3.scale.category20b = function() { |
---|
2994 | return d3.scale.ordinal().range(d3_category20b); |
---|
2995 | }; |
---|
2996 | |
---|
2997 | d3.scale.category20c = function() { |
---|
2998 | return d3.scale.ordinal().range(d3_category20c); |
---|
2999 | }; |
---|
3000 | |
---|
3001 | var d3_category10 = [ |
---|
3002 | "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd", |
---|
3003 | "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf" |
---|
3004 | ]; |
---|
3005 | |
---|
3006 | var d3_category20 = [ |
---|
3007 | "#1f77b4", "#aec7e8", |
---|
3008 | "#ff7f0e", "#ffbb78", |
---|
3009 | "#2ca02c", "#98df8a", |
---|
3010 | "#d62728", "#ff9896", |
---|
3011 | "#9467bd", "#c5b0d5", |
---|
3012 | "#8c564b", "#c49c94", |
---|
3013 | "#e377c2", "#f7b6d2", |
---|
3014 | "#7f7f7f", "#c7c7c7", |
---|
3015 | "#bcbd22", "#dbdb8d", |
---|
3016 | "#17becf", "#9edae5" |
---|
3017 | ]; |
---|
3018 | |
---|
3019 | var d3_category20b = [ |
---|
3020 | "#393b79", "#5254a3", "#6b6ecf", "#9c9ede", |
---|
3021 | "#637939", "#8ca252", "#b5cf6b", "#cedb9c", |
---|
3022 | "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94", |
---|
3023 | "#843c39", "#ad494a", "#d6616b", "#e7969c", |
---|
3024 | "#7b4173", "#a55194", "#ce6dbd", "#de9ed6" |
---|
3025 | ]; |
---|
3026 | |
---|
3027 | var d3_category20c = [ |
---|
3028 | "#3182bd", "#6baed6", "#9ecae1", "#c6dbef", |
---|
3029 | "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2", |
---|
3030 | "#31a354", "#74c476", "#a1d99b", "#c7e9c0", |
---|
3031 | "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb", |
---|
3032 | "#636363", "#969696", "#bdbdbd", "#d9d9d9" |
---|
3033 | ]; |
---|
3034 | d3.scale.quantile = function() { |
---|
3035 | return d3_scale_quantile([], []); |
---|
3036 | }; |
---|
3037 | |
---|
3038 | function d3_scale_quantile(domain, range) { |
---|
3039 | var thresholds; |
---|
3040 | |
---|
3041 | function rescale() { |
---|
3042 | var k = 0, |
---|
3043 | n = domain.length, |
---|
3044 | q = range.length; |
---|
3045 | thresholds = []; |
---|
3046 | while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q); |
---|
3047 | return scale; |
---|
3048 | } |
---|
3049 | |
---|
3050 | function scale(x) { |
---|
3051 | if (isNaN(x = +x)) return NaN; |
---|
3052 | return range[d3.bisect(thresholds, x)]; |
---|
3053 | } |
---|
3054 | |
---|
3055 | scale.domain = function(x) { |
---|
3056 | if (!arguments.length) return domain; |
---|
3057 | domain = x.filter(function(d) { return !isNaN(d); }).sort(d3.ascending); |
---|
3058 | return rescale(); |
---|
3059 | }; |
---|
3060 | |
---|
3061 | scale.range = function(x) { |
---|
3062 | if (!arguments.length) return range; |
---|
3063 | range = x; |
---|
3064 | return rescale(); |
---|
3065 | }; |
---|
3066 | |
---|
3067 | scale.quantiles = function() { |
---|
3068 | return thresholds; |
---|
3069 | }; |
---|
3070 | |
---|
3071 | scale.copy = function() { |
---|
3072 | return d3_scale_quantile(domain, range); // copy on write! |
---|
3073 | }; |
---|
3074 | |
---|
3075 | return rescale(); |
---|
3076 | } |
---|
3077 | d3.scale.quantize = function() { |
---|
3078 | return d3_scale_quantize(0, 1, [0, 1]); |
---|
3079 | }; |
---|
3080 | |
---|
3081 | function d3_scale_quantize(x0, x1, range) { |
---|
3082 | var kx, i; |
---|
3083 | |
---|
3084 | function scale(x) { |
---|
3085 | return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))]; |
---|
3086 | } |
---|
3087 | |
---|
3088 | function rescale() { |
---|
3089 | kx = range.length / (x1 - x0); |
---|
3090 | i = range.length - 1; |
---|
3091 | return scale; |
---|
3092 | } |
---|
3093 | |
---|
3094 | scale.domain = function(x) { |
---|
3095 | if (!arguments.length) return [x0, x1]; |
---|
3096 | x0 = +x[0]; |
---|
3097 | x1 = +x[x.length - 1]; |
---|
3098 | return rescale(); |
---|
3099 | }; |
---|
3100 | |
---|
3101 | scale.range = function(x) { |
---|
3102 | if (!arguments.length) return range; |
---|
3103 | range = x; |
---|
3104 | return rescale(); |
---|
3105 | }; |
---|
3106 | |
---|
3107 | scale.copy = function() { |
---|
3108 | return d3_scale_quantize(x0, x1, range); // copy on write |
---|
3109 | }; |
---|
3110 | |
---|
3111 | return rescale(); |
---|
3112 | } |
---|
3113 | d3.scale.identity = function() { |
---|
3114 | return d3_scale_identity([0, 1]); |
---|
3115 | }; |
---|
3116 | |
---|
3117 | function d3_scale_identity(domain) { |
---|
3118 | |
---|
3119 | function identity(x) { return +x; } |
---|
3120 | |
---|
3121 | identity.invert = identity; |
---|
3122 | |
---|
3123 | identity.domain = identity.range = function(x) { |
---|
3124 | if (!arguments.length) return domain; |
---|
3125 | domain = x.map(identity); |
---|
3126 | return identity; |
---|
3127 | }; |
---|
3128 | |
---|
3129 | identity.ticks = function(m) { |
---|
3130 | return d3_scale_linearTicks(domain, m); |
---|
3131 | }; |
---|
3132 | |
---|
3133 | identity.tickFormat = function(m) { |
---|
3134 | return d3_scale_linearTickFormat(domain, m); |
---|
3135 | }; |
---|
3136 | |
---|
3137 | identity.copy = function() { |
---|
3138 | return d3_scale_identity(domain); |
---|
3139 | }; |
---|
3140 | |
---|
3141 | return identity; |
---|
3142 | } |
---|
3143 | d3.svg = {}; |
---|
3144 | d3.svg.arc = function() { |
---|
3145 | var innerRadius = d3_svg_arcInnerRadius, |
---|
3146 | outerRadius = d3_svg_arcOuterRadius, |
---|
3147 | startAngle = d3_svg_arcStartAngle, |
---|
3148 | endAngle = d3_svg_arcEndAngle; |
---|
3149 | |
---|
3150 | function arc() { |
---|
3151 | var r0 = innerRadius.apply(this, arguments), |
---|
3152 | r1 = outerRadius.apply(this, arguments), |
---|
3153 | a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset, |
---|
3154 | a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset, |
---|
3155 | da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0), |
---|
3156 | df = da < Math.PI ? "0" : "1", |
---|
3157 | c0 = Math.cos(a0), |
---|
3158 | s0 = Math.sin(a0), |
---|
3159 | c1 = Math.cos(a1), |
---|
3160 | s1 = Math.sin(a1); |
---|
3161 | return da >= d3_svg_arcMax |
---|
3162 | ? (r0 |
---|
3163 | ? "M0," + r1 |
---|
3164 | + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1) |
---|
3165 | + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 |
---|
3166 | + "M0," + r0 |
---|
3167 | + "A" + r0 + "," + r0 + " 0 1,0 0," + (-r0) |
---|
3168 | + "A" + r0 + "," + r0 + " 0 1,0 0," + r0 |
---|
3169 | + "Z" |
---|
3170 | : "M0," + r1 |
---|
3171 | + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1) |
---|
3172 | + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 |
---|
3173 | + "Z") |
---|
3174 | : (r0 |
---|
3175 | ? "M" + r1 * c0 + "," + r1 * s0 |
---|
3176 | + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 |
---|
3177 | + "L" + r0 * c1 + "," + r0 * s1 |
---|
3178 | + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0 |
---|
3179 | + "Z" |
---|
3180 | : "M" + r1 * c0 + "," + r1 * s0 |
---|
3181 | + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 |
---|
3182 | + "L0,0" |
---|
3183 | + "Z"); |
---|
3184 | } |
---|
3185 | |
---|
3186 | arc.innerRadius = function(v) { |
---|
3187 | if (!arguments.length) return innerRadius; |
---|
3188 | innerRadius = d3.functor(v); |
---|
3189 | return arc; |
---|
3190 | }; |
---|
3191 | |
---|
3192 | arc.outerRadius = function(v) { |
---|
3193 | if (!arguments.length) return outerRadius; |
---|
3194 | outerRadius = d3.functor(v); |
---|
3195 | return arc; |
---|
3196 | }; |
---|
3197 | |
---|
3198 | arc.startAngle = function(v) { |
---|
3199 | if (!arguments.length) return startAngle; |
---|
3200 | startAngle = d3.functor(v); |
---|
3201 | return arc; |
---|
3202 | }; |
---|
3203 | |
---|
3204 | arc.endAngle = function(v) { |
---|
3205 | if (!arguments.length) return endAngle; |
---|
3206 | endAngle = d3.functor(v); |
---|
3207 | return arc; |
---|
3208 | }; |
---|
3209 | |
---|
3210 | arc.centroid = function() { |
---|
3211 | var r = (innerRadius.apply(this, arguments) |
---|
3212 | + outerRadius.apply(this, arguments)) / 2, |
---|
3213 | a = (startAngle.apply(this, arguments) |
---|
3214 | + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset; |
---|
3215 | return [Math.cos(a) * r, Math.sin(a) * r]; |
---|
3216 | }; |
---|
3217 | |
---|
3218 | return arc; |
---|
3219 | }; |
---|
3220 | |
---|
3221 | var d3_svg_arcOffset = -Math.PI / 2, |
---|
3222 | d3_svg_arcMax = 2 * Math.PI - 1e-6; |
---|
3223 | |
---|
3224 | function d3_svg_arcInnerRadius(d) { |
---|
3225 | return d.innerRadius; |
---|
3226 | } |
---|
3227 | |
---|
3228 | function d3_svg_arcOuterRadius(d) { |
---|
3229 | return d.outerRadius; |
---|
3230 | } |
---|
3231 | |
---|
3232 | function d3_svg_arcStartAngle(d) { |
---|
3233 | return d.startAngle; |
---|
3234 | } |
---|
3235 | |
---|
3236 | function d3_svg_arcEndAngle(d) { |
---|
3237 | return d.endAngle; |
---|
3238 | } |
---|
3239 | function d3_svg_line(projection) { |
---|
3240 | var x = d3_svg_lineX, |
---|
3241 | y = d3_svg_lineY, |
---|
3242 | interpolate = d3_svg_lineInterpolatorDefault, |
---|
3243 | interpolator = d3_svg_lineInterpolators.get(interpolate), |
---|
3244 | tension = .7; |
---|
3245 | |
---|
3246 | function line(d) { |
---|
3247 | return d.length < 1 ? null : "M" + interpolator(projection(d3_svg_linePoints(this, d, x, y)), tension); |
---|
3248 | } |
---|
3249 | |
---|
3250 | line.x = function(v) { |
---|
3251 | if (!arguments.length) return x; |
---|
3252 | x = v; |
---|
3253 | return line; |
---|
3254 | }; |
---|
3255 | |
---|
3256 | line.y = function(v) { |
---|
3257 | if (!arguments.length) return y; |
---|
3258 | y = v; |
---|
3259 | return line; |
---|
3260 | }; |
---|
3261 | |
---|
3262 | line.interpolate = function(v) { |
---|
3263 | if (!arguments.length) return interpolate; |
---|
3264 | if (!d3_svg_lineInterpolators.has(v += "")) v = d3_svg_lineInterpolatorDefault; |
---|
3265 | interpolator = d3_svg_lineInterpolators.get(interpolate = v); |
---|
3266 | return line; |
---|
3267 | }; |
---|
3268 | |
---|
3269 | line.tension = function(v) { |
---|
3270 | if (!arguments.length) return tension; |
---|
3271 | tension = v; |
---|
3272 | return line; |
---|
3273 | }; |
---|
3274 | |
---|
3275 | return line; |
---|
3276 | } |
---|
3277 | |
---|
3278 | d3.svg.line = function() { |
---|
3279 | return d3_svg_line(Object); |
---|
3280 | }; |
---|
3281 | |
---|
3282 | // Converts the specified array of data into an array of points |
---|
3283 | // (x-y tuples), by evaluating the specified `x` and `y` functions on each |
---|
3284 | // data point. The `this` context of the evaluated functions is the specified |
---|
3285 | // "self" object; each function is passed the current datum and index. |
---|
3286 | function d3_svg_linePoints(self, d, x, y) { |
---|
3287 | var points = [], |
---|
3288 | i = -1, |
---|
3289 | n = d.length, |
---|
3290 | fx = typeof x === "function", |
---|
3291 | fy = typeof y === "function", |
---|
3292 | value; |
---|
3293 | if (fx && fy) { |
---|
3294 | while (++i < n) points.push([ |
---|
3295 | x.call(self, value = d[i], i), |
---|
3296 | y.call(self, value, i) |
---|
3297 | ]); |
---|
3298 | } else if (fx) { |
---|
3299 | while (++i < n) points.push([x.call(self, d[i], i), y]); |
---|
3300 | } else if (fy) { |
---|
3301 | while (++i < n) points.push([x, y.call(self, d[i], i)]); |
---|
3302 | } else { |
---|
3303 | while (++i < n) points.push([x, y]); |
---|
3304 | } |
---|
3305 | return points; |
---|
3306 | } |
---|
3307 | |
---|
3308 | // The default `x` property, which references d[0]. |
---|
3309 | function d3_svg_lineX(d) { |
---|
3310 | return d[0]; |
---|
3311 | } |
---|
3312 | |
---|
3313 | // The default `y` property, which references d[1]. |
---|
3314 | function d3_svg_lineY(d) { |
---|
3315 | return d[1]; |
---|
3316 | } |
---|
3317 | |
---|
3318 | var d3_svg_lineInterpolatorDefault = "linear"; |
---|
3319 | |
---|
3320 | // The various interpolators supported by the `line` class. |
---|
3321 | var d3_svg_lineInterpolators = d3.map({ |
---|
3322 | "linear": d3_svg_lineLinear, |
---|
3323 | "step-before": d3_svg_lineStepBefore, |
---|
3324 | "step-after": d3_svg_lineStepAfter, |
---|
3325 | "basis": d3_svg_lineBasis, |
---|
3326 | "basis-open": d3_svg_lineBasisOpen, |
---|
3327 | "basis-closed": d3_svg_lineBasisClosed, |
---|
3328 | "bundle": d3_svg_lineBundle, |
---|
3329 | "cardinal": d3_svg_lineCardinal, |
---|
3330 | "cardinal-open": d3_svg_lineCardinalOpen, |
---|
3331 | "cardinal-closed": d3_svg_lineCardinalClosed, |
---|
3332 | "monotone": d3_svg_lineMonotone |
---|
3333 | }); |
---|
3334 | |
---|
3335 | // Linear interpolation; generates "L" commands. |
---|
3336 | function d3_svg_lineLinear(points) { |
---|
3337 | var i = 0, |
---|
3338 | n = points.length, |
---|
3339 | p = points[0], |
---|
3340 | path = [p[0], ",", p[1]]; |
---|
3341 | while (++i < n) path.push("L", (p = points[i])[0], ",", p[1]); |
---|
3342 | return path.join(""); |
---|
3343 | } |
---|
3344 | |
---|
3345 | // Step interpolation; generates "H" and "V" commands. |
---|
3346 | function d3_svg_lineStepBefore(points) { |
---|
3347 | var i = 0, |
---|
3348 | n = points.length, |
---|
3349 | p = points[0], |
---|
3350 | path = [p[0], ",", p[1]]; |
---|
3351 | while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]); |
---|
3352 | return path.join(""); |
---|
3353 | } |
---|
3354 | |
---|
3355 | // Step interpolation; generates "H" and "V" commands. |
---|
3356 | function d3_svg_lineStepAfter(points) { |
---|
3357 | var i = 0, |
---|
3358 | n = points.length, |
---|
3359 | p = points[0], |
---|
3360 | path = [p[0], ",", p[1]]; |
---|
3361 | while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]); |
---|
3362 | return path.join(""); |
---|
3363 | } |
---|
3364 | |
---|
3365 | // Open cardinal spline interpolation; generates "C" commands. |
---|
3366 | function d3_svg_lineCardinalOpen(points, tension) { |
---|
3367 | return points.length < 4 |
---|
3368 | ? d3_svg_lineLinear(points) |
---|
3369 | : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1), |
---|
3370 | d3_svg_lineCardinalTangents(points, tension)); |
---|
3371 | } |
---|
3372 | |
---|
3373 | // Closed cardinal spline interpolation; generates "C" commands. |
---|
3374 | function d3_svg_lineCardinalClosed(points, tension) { |
---|
3375 | return points.length < 3 |
---|
3376 | ? d3_svg_lineLinear(points) |
---|
3377 | : points[0] + d3_svg_lineHermite((points.push(points[0]), points), |
---|
3378 | d3_svg_lineCardinalTangents([points[points.length - 2]] |
---|
3379 | .concat(points, [points[1]]), tension)); |
---|
3380 | } |
---|
3381 | |
---|
3382 | // Cardinal spline interpolation; generates "C" commands. |
---|
3383 | function d3_svg_lineCardinal(points, tension, closed) { |
---|
3384 | return points.length < 3 |
---|
3385 | ? d3_svg_lineLinear(points) |
---|
3386 | : points[0] + d3_svg_lineHermite(points, |
---|
3387 | d3_svg_lineCardinalTangents(points, tension)); |
---|
3388 | } |
---|
3389 | |
---|
3390 | // Hermite spline construction; generates "C" commands. |
---|
3391 | function d3_svg_lineHermite(points, tangents) { |
---|
3392 | if (tangents.length < 1 |
---|
3393 | || (points.length != tangents.length |
---|
3394 | && points.length != tangents.length + 2)) { |
---|
3395 | return d3_svg_lineLinear(points); |
---|
3396 | } |
---|
3397 | |
---|
3398 | var quad = points.length != tangents.length, |
---|
3399 | path = "", |
---|
3400 | p0 = points[0], |
---|
3401 | p = points[1], |
---|
3402 | t0 = tangents[0], |
---|
3403 | t = t0, |
---|
3404 | pi = 1; |
---|
3405 | |
---|
3406 | if (quad) { |
---|
3407 | path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) |
---|
3408 | + "," + p[0] + "," + p[1]; |
---|
3409 | p0 = points[1]; |
---|
3410 | pi = 2; |
---|
3411 | } |
---|
3412 | |
---|
3413 | if (tangents.length > 1) { |
---|
3414 | t = tangents[1]; |
---|
3415 | p = points[pi]; |
---|
3416 | pi++; |
---|
3417 | path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) |
---|
3418 | + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) |
---|
3419 | + "," + p[0] + "," + p[1]; |
---|
3420 | for (var i = 2; i < tangents.length; i++, pi++) { |
---|
3421 | p = points[pi]; |
---|
3422 | t = tangents[i]; |
---|
3423 | path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) |
---|
3424 | + "," + p[0] + "," + p[1]; |
---|
3425 | } |
---|
3426 | } |
---|
3427 | |
---|
3428 | if (quad) { |
---|
3429 | var lp = points[pi]; |
---|
3430 | path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) |
---|
3431 | + "," + lp[0] + "," + lp[1]; |
---|
3432 | } |
---|
3433 | |
---|
3434 | return path; |
---|
3435 | } |
---|
3436 | |
---|
3437 | // Generates tangents for a cardinal spline. |
---|
3438 | function d3_svg_lineCardinalTangents(points, tension) { |
---|
3439 | var tangents = [], |
---|
3440 | a = (1 - tension) / 2, |
---|
3441 | p0, |
---|
3442 | p1 = points[0], |
---|
3443 | p2 = points[1], |
---|
3444 | i = 1, |
---|
3445 | n = points.length; |
---|
3446 | while (++i < n) { |
---|
3447 | p0 = p1; |
---|
3448 | p1 = p2; |
---|
3449 | p2 = points[i]; |
---|
3450 | tangents.push([a * (p2[0] - p0[0]), a * (p2[1] - p0[1])]); |
---|
3451 | } |
---|
3452 | return tangents; |
---|
3453 | } |
---|
3454 | |
---|
3455 | // B-spline interpolation; generates "C" commands. |
---|
3456 | function d3_svg_lineBasis(points) { |
---|
3457 | if (points.length < 3) return d3_svg_lineLinear(points); |
---|
3458 | var i = 1, |
---|
3459 | n = points.length, |
---|
3460 | pi = points[0], |
---|
3461 | x0 = pi[0], |
---|
3462 | y0 = pi[1], |
---|
3463 | px = [x0, x0, x0, (pi = points[1])[0]], |
---|
3464 | py = [y0, y0, y0, pi[1]], |
---|
3465 | path = [x0, ",", y0]; |
---|
3466 | d3_svg_lineBasisBezier(path, px, py); |
---|
3467 | while (++i < n) { |
---|
3468 | pi = points[i]; |
---|
3469 | px.shift(); px.push(pi[0]); |
---|
3470 | py.shift(); py.push(pi[1]); |
---|
3471 | d3_svg_lineBasisBezier(path, px, py); |
---|
3472 | } |
---|
3473 | i = -1; |
---|
3474 | while (++i < 2) { |
---|
3475 | px.shift(); px.push(pi[0]); |
---|
3476 | py.shift(); py.push(pi[1]); |
---|
3477 | d3_svg_lineBasisBezier(path, px, py); |
---|
3478 | } |
---|
3479 | return path.join(""); |
---|
3480 | } |
---|
3481 | |
---|
3482 | // Open B-spline interpolation; generates "C" commands. |
---|
3483 | function d3_svg_lineBasisOpen(points) { |
---|
3484 | if (points.length < 4) return d3_svg_lineLinear(points); |
---|
3485 | var path = [], |
---|
3486 | i = -1, |
---|
3487 | n = points.length, |
---|
3488 | pi, |
---|
3489 | px = [0], |
---|
3490 | py = [0]; |
---|
3491 | while (++i < 3) { |
---|
3492 | pi = points[i]; |
---|
3493 | px.push(pi[0]); |
---|
3494 | py.push(pi[1]); |
---|
3495 | } |
---|
3496 | path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) |
---|
3497 | + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py)); |
---|
3498 | --i; while (++i < n) { |
---|
3499 | pi = points[i]; |
---|
3500 | px.shift(); px.push(pi[0]); |
---|
3501 | py.shift(); py.push(pi[1]); |
---|
3502 | d3_svg_lineBasisBezier(path, px, py); |
---|
3503 | } |
---|
3504 | return path.join(""); |
---|
3505 | } |
---|
3506 | |
---|
3507 | // Closed B-spline interpolation; generates "C" commands. |
---|
3508 | function d3_svg_lineBasisClosed(points) { |
---|
3509 | var path, |
---|
3510 | i = -1, |
---|
3511 | n = points.length, |
---|
3512 | m = n + 4, |
---|
3513 | pi, |
---|
3514 | px = [], |
---|
3515 | py = []; |
---|
3516 | while (++i < 4) { |
---|
3517 | pi = points[i % n]; |
---|
3518 | px.push(pi[0]); |
---|
3519 | py.push(pi[1]); |
---|
3520 | } |
---|
3521 | path = [ |
---|
3522 | d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", |
---|
3523 | d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) |
---|
3524 | ]; |
---|
3525 | --i; while (++i < m) { |
---|
3526 | pi = points[i % n]; |
---|
3527 | px.shift(); px.push(pi[0]); |
---|
3528 | py.shift(); py.push(pi[1]); |
---|
3529 | d3_svg_lineBasisBezier(path, px, py); |
---|
3530 | } |
---|
3531 | return path.join(""); |
---|
3532 | } |
---|
3533 | |
---|
3534 | function d3_svg_lineBundle(points, tension) { |
---|
3535 | var n = points.length - 1, |
---|
3536 | x0 = points[0][0], |
---|
3537 | y0 = points[0][1], |
---|
3538 | dx = points[n][0] - x0, |
---|
3539 | dy = points[n][1] - y0, |
---|
3540 | i = -1, |
---|
3541 | p, |
---|
3542 | t; |
---|
3543 | while (++i <= n) { |
---|
3544 | p = points[i]; |
---|
3545 | t = i / n; |
---|
3546 | p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx); |
---|
3547 | p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy); |
---|
3548 | } |
---|
3549 | return d3_svg_lineBasis(points); |
---|
3550 | } |
---|
3551 | |
---|
3552 | // Returns the dot product of the given four-element vectors. |
---|
3553 | function d3_svg_lineDot4(a, b) { |
---|
3554 | return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]; |
---|
3555 | } |
---|
3556 | |
---|
3557 | // Matrix to transform basis (b-spline) control points to bezier |
---|
3558 | // control points. Derived from FvD 11.2.8. |
---|
3559 | var d3_svg_lineBasisBezier1 = [0, 2/3, 1/3, 0], |
---|
3560 | d3_svg_lineBasisBezier2 = [0, 1/3, 2/3, 0], |
---|
3561 | d3_svg_lineBasisBezier3 = [0, 1/6, 2/3, 1/6]; |
---|
3562 | |
---|
3563 | // Pushes a "C" Bézier curve onto the specified path array, given the |
---|
3564 | // two specified four-element arrays which define the control points. |
---|
3565 | function d3_svg_lineBasisBezier(path, x, y) { |
---|
3566 | path.push( |
---|
3567 | "C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), |
---|
3568 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), |
---|
3569 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), |
---|
3570 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), |
---|
3571 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), |
---|
3572 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y)); |
---|
3573 | } |
---|
3574 | |
---|
3575 | // Computes the slope from points p0 to p1. |
---|
3576 | function d3_svg_lineSlope(p0, p1) { |
---|
3577 | return (p1[1] - p0[1]) / (p1[0] - p0[0]); |
---|
3578 | } |
---|
3579 | |
---|
3580 | // Compute three-point differences for the given points. |
---|
3581 | // http://en.wikipedia.org/wiki/Cubic_Hermite_spline#Finite_difference |
---|
3582 | function d3_svg_lineFiniteDifferences(points) { |
---|
3583 | var i = 0, |
---|
3584 | j = points.length - 1, |
---|
3585 | m = [], |
---|
3586 | p0 = points[0], |
---|
3587 | p1 = points[1], |
---|
3588 | d = m[0] = d3_svg_lineSlope(p0, p1); |
---|
3589 | while (++i < j) { |
---|
3590 | m[i] = d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1])); |
---|
3591 | } |
---|
3592 | m[i] = d; |
---|
3593 | return m; |
---|
3594 | } |
---|
3595 | |
---|
3596 | // Interpolates the given points using Fritsch-Carlson Monotone cubic Hermite |
---|
3597 | // interpolation. Returns an array of tangent vectors. For details, see |
---|
3598 | // http://en.wikipedia.org/wiki/Monotone_cubic_interpolation |
---|
3599 | function d3_svg_lineMonotoneTangents(points) { |
---|
3600 | var tangents = [], |
---|
3601 | d, |
---|
3602 | a, |
---|
3603 | b, |
---|
3604 | s, |
---|
3605 | m = d3_svg_lineFiniteDifferences(points), |
---|
3606 | i = -1, |
---|
3607 | j = points.length - 1; |
---|
3608 | |
---|
3609 | // The first two steps are done by computing finite-differences: |
---|
3610 | // 1. Compute the slopes of the secant lines between successive points. |
---|
3611 | // 2. Initialize the tangents at every point as the average of the secants. |
---|
3612 | |
---|
3613 | // Then, for each segment⊠|
---|
3614 | while (++i < j) { |
---|
3615 | d = d3_svg_lineSlope(points[i], points[i + 1]); |
---|
3616 | |
---|
3617 | // 3. If two successive yk = y{k + 1} are equal (i.e., d is zero), then set |
---|
3618 | // mk = m{k + 1} = 0 as the spline connecting these points must be flat to |
---|
3619 | // preserve monotonicity. Ignore step 4 and 5 for those k. |
---|
3620 | |
---|
3621 | if (Math.abs(d) < 1e-6) { |
---|
3622 | m[i] = m[i + 1] = 0; |
---|
3623 | } else { |
---|
3624 | // 4. Let ak = mk / dk and bk = m{k + 1} / dk. |
---|
3625 | a = m[i] / d; |
---|
3626 | b = m[i + 1] / d; |
---|
3627 | |
---|
3628 | // 5. Prevent overshoot and ensure monotonicity by restricting the |
---|
3629 | // magnitude of vector <ak, bk> to a circle of radius 3. |
---|
3630 | s = a * a + b * b; |
---|
3631 | if (s > 9) { |
---|
3632 | s = d * 3 / Math.sqrt(s); |
---|
3633 | m[i] = s * a; |
---|
3634 | m[i + 1] = s * b; |
---|
3635 | } |
---|
3636 | } |
---|
3637 | } |
---|
3638 | |
---|
3639 | // Compute the normalized tangent vector from the slopes. Note that if x is |
---|
3640 | // not monotonic, it's possible that the slope will be infinite, so we protect |
---|
3641 | // against NaN by setting the coordinate to zero. |
---|
3642 | i = -1; while (++i <= j) { |
---|
3643 | s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) |
---|
3644 | / (6 * (1 + m[i] * m[i])); |
---|
3645 | tangents.push([s || 0, m[i] * s || 0]); |
---|
3646 | } |
---|
3647 | |
---|
3648 | return tangents; |
---|
3649 | } |
---|
3650 | |
---|
3651 | function d3_svg_lineMonotone(points) { |
---|
3652 | return points.length < 3 |
---|
3653 | ? d3_svg_lineLinear(points) |
---|
3654 | : points[0] + |
---|
3655 | d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points)); |
---|
3656 | } |
---|
3657 | d3.svg.line.radial = function() { |
---|
3658 | var line = d3_svg_line(d3_svg_lineRadial); |
---|
3659 | line.radius = line.x, delete line.x; |
---|
3660 | line.angle = line.y, delete line.y; |
---|
3661 | return line; |
---|
3662 | }; |
---|
3663 | |
---|
3664 | function d3_svg_lineRadial(points) { |
---|
3665 | var point, |
---|
3666 | i = -1, |
---|
3667 | n = points.length, |
---|
3668 | r, |
---|
3669 | a; |
---|
3670 | while (++i < n) { |
---|
3671 | point = points[i]; |
---|
3672 | r = point[0]; |
---|
3673 | a = point[1] + d3_svg_arcOffset; |
---|
3674 | point[0] = r * Math.cos(a); |
---|
3675 | point[1] = r * Math.sin(a); |
---|
3676 | } |
---|
3677 | return points; |
---|
3678 | } |
---|
3679 | function d3_svg_area(projection) { |
---|
3680 | var x0 = d3_svg_lineX, |
---|
3681 | x1 = d3_svg_lineX, |
---|
3682 | y0 = 0, |
---|
3683 | y1 = d3_svg_lineY, |
---|
3684 | interpolate, |
---|
3685 | i0, |
---|
3686 | i1, |
---|
3687 | tension = .7; |
---|
3688 | |
---|
3689 | function area(d) { |
---|
3690 | if (d.length < 1) return null; |
---|
3691 | var points0 = d3_svg_linePoints(this, d, x0, y0), |
---|
3692 | points1 = d3_svg_linePoints(this, d, x0 === x1 ? d3_svg_areaX(points0) : x1, y0 === y1 ? d3_svg_areaY(points0) : y1); |
---|
3693 | return "M" + i0(projection(points1), tension) |
---|
3694 | + "L" + i1(projection(points0.reverse()), tension) |
---|
3695 | + "Z"; |
---|
3696 | } |
---|
3697 | |
---|
3698 | area.x = function(x) { |
---|
3699 | if (!arguments.length) return x1; |
---|
3700 | x0 = x1 = x; |
---|
3701 | return area; |
---|
3702 | }; |
---|
3703 | |
---|
3704 | area.x0 = function(x) { |
---|
3705 | if (!arguments.length) return x0; |
---|
3706 | x0 = x; |
---|
3707 | return area; |
---|
3708 | }; |
---|
3709 | |
---|
3710 | area.x1 = function(x) { |
---|
3711 | if (!arguments.length) return x1; |
---|
3712 | x1 = x; |
---|
3713 | return area; |
---|
3714 | }; |
---|
3715 | |
---|
3716 | area.y = function(y) { |
---|
3717 | if (!arguments.length) return y1; |
---|
3718 | y0 = y1 = y; |
---|
3719 | return area; |
---|
3720 | }; |
---|
3721 | |
---|
3722 | area.y0 = function(y) { |
---|
3723 | if (!arguments.length) return y0; |
---|
3724 | y0 = y; |
---|
3725 | return area; |
---|
3726 | }; |
---|
3727 | |
---|
3728 | area.y1 = function(y) { |
---|
3729 | if (!arguments.length) return y1; |
---|
3730 | y1 = y; |
---|
3731 | return area; |
---|
3732 | }; |
---|
3733 | |
---|
3734 | area.interpolate = function(x) { |
---|
3735 | if (!arguments.length) return interpolate; |
---|
3736 | if (!d3_svg_lineInterpolators.has(x += "")) x = d3_svg_lineInterpolatorDefault; |
---|
3737 | i0 = d3_svg_lineInterpolators.get(interpolate = x); |
---|
3738 | i1 = i0.reverse || i0; |
---|
3739 | return area; |
---|
3740 | }; |
---|
3741 | |
---|
3742 | area.tension = function(x) { |
---|
3743 | if (!arguments.length) return tension; |
---|
3744 | tension = x; |
---|
3745 | return area; |
---|
3746 | }; |
---|
3747 | |
---|
3748 | return area.interpolate("linear"); |
---|
3749 | } |
---|
3750 | |
---|
3751 | d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter; |
---|
3752 | d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore; |
---|
3753 | |
---|
3754 | d3.svg.area = function() { |
---|
3755 | return d3_svg_area(Object); |
---|
3756 | }; |
---|
3757 | |
---|
3758 | function d3_svg_areaX(points) { |
---|
3759 | return function(d, i) { |
---|
3760 | return points[i][0]; |
---|
3761 | }; |
---|
3762 | } |
---|
3763 | |
---|
3764 | function d3_svg_areaY(points) { |
---|
3765 | return function(d, i) { |
---|
3766 | return points[i][1]; |
---|
3767 | }; |
---|
3768 | } |
---|
3769 | d3.svg.area.radial = function() { |
---|
3770 | var area = d3_svg_area(d3_svg_lineRadial); |
---|
3771 | area.radius = area.x, delete area.x; |
---|
3772 | area.innerRadius = area.x0, delete area.x0; |
---|
3773 | area.outerRadius = area.x1, delete area.x1; |
---|
3774 | area.angle = area.y, delete area.y; |
---|
3775 | area.startAngle = area.y0, delete area.y0; |
---|
3776 | area.endAngle = area.y1, delete area.y1; |
---|
3777 | return area; |
---|
3778 | }; |
---|
3779 | d3.svg.chord = function() { |
---|
3780 | var source = d3_svg_chordSource, |
---|
3781 | target = d3_svg_chordTarget, |
---|
3782 | radius = d3_svg_chordRadius, |
---|
3783 | startAngle = d3_svg_arcStartAngle, |
---|
3784 | endAngle = d3_svg_arcEndAngle; |
---|
3785 | |
---|
3786 | // TODO Allow control point to be customized. |
---|
3787 | |
---|
3788 | function chord(d, i) { |
---|
3789 | var s = subgroup(this, source, d, i), |
---|
3790 | t = subgroup(this, target, d, i); |
---|
3791 | return "M" + s.p0 |
---|
3792 | + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) |
---|
3793 | ? curve(s.r, s.p1, s.r, s.p0) |
---|
3794 | : curve(s.r, s.p1, t.r, t.p0) |
---|
3795 | + arc(t.r, t.p1, t.a1 - t.a0) |
---|
3796 | + curve(t.r, t.p1, s.r, s.p0)) |
---|
3797 | + "Z"; |
---|
3798 | } |
---|
3799 | |
---|
3800 | function subgroup(self, f, d, i) { |
---|
3801 | var subgroup = f.call(self, d, i), |
---|
3802 | r = radius.call(self, subgroup, i), |
---|
3803 | a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset, |
---|
3804 | a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset; |
---|
3805 | return { |
---|
3806 | r: r, |
---|
3807 | a0: a0, |
---|
3808 | a1: a1, |
---|
3809 | p0: [r * Math.cos(a0), r * Math.sin(a0)], |
---|
3810 | p1: [r * Math.cos(a1), r * Math.sin(a1)] |
---|
3811 | }; |
---|
3812 | } |
---|
3813 | |
---|
3814 | function equals(a, b) { |
---|
3815 | return a.a0 == b.a0 && a.a1 == b.a1; |
---|
3816 | } |
---|
3817 | |
---|
3818 | function arc(r, p, a) { |
---|
3819 | return "A" + r + "," + r + " 0 " + +(a > Math.PI) + ",1 " + p; |
---|
3820 | } |
---|
3821 | |
---|
3822 | function curve(r0, p0, r1, p1) { |
---|
3823 | return "Q 0,0 " + p1; |
---|
3824 | } |
---|
3825 | |
---|
3826 | chord.radius = function(v) { |
---|
3827 | if (!arguments.length) return radius; |
---|
3828 | radius = d3.functor(v); |
---|
3829 | return chord; |
---|
3830 | }; |
---|
3831 | |
---|
3832 | chord.source = function(v) { |
---|
3833 | if (!arguments.length) return source; |
---|
3834 | source = d3.functor(v); |
---|
3835 | return chord; |
---|
3836 | }; |
---|
3837 | |
---|
3838 | chord.target = function(v) { |
---|
3839 | if (!arguments.length) return target; |
---|
3840 | target = d3.functor(v); |
---|
3841 | return chord; |
---|
3842 | }; |
---|
3843 | |
---|
3844 | chord.startAngle = function(v) { |
---|
3845 | if (!arguments.length) return startAngle; |
---|
3846 | startAngle = d3.functor(v); |
---|
3847 | return chord; |
---|
3848 | }; |
---|
3849 | |
---|
3850 | chord.endAngle = function(v) { |
---|
3851 | if (!arguments.length) return endAngle; |
---|
3852 | endAngle = d3.functor(v); |
---|
3853 | return chord; |
---|
3854 | }; |
---|
3855 | |
---|
3856 | return chord; |
---|
3857 | }; |
---|
3858 | |
---|
3859 | function d3_svg_chordSource(d) { |
---|
3860 | return d.source; |
---|
3861 | } |
---|
3862 | |
---|
3863 | function d3_svg_chordTarget(d) { |
---|
3864 | return d.target; |
---|
3865 | } |
---|
3866 | |
---|
3867 | function d3_svg_chordRadius(d) { |
---|
3868 | return d.radius; |
---|
3869 | } |
---|
3870 | |
---|
3871 | function d3_svg_chordStartAngle(d) { |
---|
3872 | return d.startAngle; |
---|
3873 | } |
---|
3874 | |
---|
3875 | function d3_svg_chordEndAngle(d) { |
---|
3876 | return d.endAngle; |
---|
3877 | } |
---|
3878 | d3.svg.diagonal = function() { |
---|
3879 | var source = d3_svg_chordSource, |
---|
3880 | target = d3_svg_chordTarget, |
---|
3881 | projection = d3_svg_diagonalProjection; |
---|
3882 | |
---|
3883 | function diagonal(d, i) { |
---|
3884 | var p0 = source.call(this, d, i), |
---|
3885 | p3 = target.call(this, d, i), |
---|
3886 | m = (p0.y + p3.y) / 2, |
---|
3887 | p = [p0, {x: p0.x, y: m}, {x: p3.x, y: m}, p3]; |
---|
3888 | p = p.map(projection); |
---|
3889 | return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3]; |
---|
3890 | } |
---|
3891 | |
---|
3892 | diagonal.source = function(x) { |
---|
3893 | if (!arguments.length) return source; |
---|
3894 | source = d3.functor(x); |
---|
3895 | return diagonal; |
---|
3896 | }; |
---|
3897 | |
---|
3898 | diagonal.target = function(x) { |
---|
3899 | if (!arguments.length) return target; |
---|
3900 | target = d3.functor(x); |
---|
3901 | return diagonal; |
---|
3902 | }; |
---|
3903 | |
---|
3904 | diagonal.projection = function(x) { |
---|
3905 | if (!arguments.length) return projection; |
---|
3906 | projection = x; |
---|
3907 | return diagonal; |
---|
3908 | }; |
---|
3909 | |
---|
3910 | return diagonal; |
---|
3911 | }; |
---|
3912 | |
---|
3913 | function d3_svg_diagonalProjection(d) { |
---|
3914 | return [d.x, d.y]; |
---|
3915 | } |
---|
3916 | d3.svg.diagonal.radial = function() { |
---|
3917 | var diagonal = d3.svg.diagonal(), |
---|
3918 | projection = d3_svg_diagonalProjection, |
---|
3919 | projection_ = diagonal.projection; |
---|
3920 | |
---|
3921 | diagonal.projection = function(x) { |
---|
3922 | return arguments.length |
---|
3923 | ? projection_(d3_svg_diagonalRadialProjection(projection = x)) |
---|
3924 | : projection; |
---|
3925 | }; |
---|
3926 | |
---|
3927 | return diagonal; |
---|
3928 | }; |
---|
3929 | |
---|
3930 | function d3_svg_diagonalRadialProjection(projection) { |
---|
3931 | return function() { |
---|
3932 | var d = projection.apply(this, arguments), |
---|
3933 | r = d[0], |
---|
3934 | a = d[1] + d3_svg_arcOffset; |
---|
3935 | return [r * Math.cos(a), r * Math.sin(a)]; |
---|
3936 | }; |
---|
3937 | } |
---|
3938 | d3.svg.mouse = d3.mouse; |
---|
3939 | d3.svg.touches = d3.touches; |
---|
3940 | d3.svg.symbol = function() { |
---|
3941 | var type = d3_svg_symbolType, |
---|
3942 | size = d3_svg_symbolSize; |
---|
3943 | |
---|
3944 | function symbol(d, i) { |
---|
3945 | return (d3_svg_symbols.get(type.call(this, d, i)) |
---|
3946 | || d3_svg_symbolCircle) |
---|
3947 | (size.call(this, d, i)); |
---|
3948 | } |
---|
3949 | |
---|
3950 | symbol.type = function(x) { |
---|
3951 | if (!arguments.length) return type; |
---|
3952 | type = d3.functor(x); |
---|
3953 | return symbol; |
---|
3954 | }; |
---|
3955 | |
---|
3956 | // size of symbol in square pixels |
---|
3957 | symbol.size = function(x) { |
---|
3958 | if (!arguments.length) return size; |
---|
3959 | size = d3.functor(x); |
---|
3960 | return symbol; |
---|
3961 | }; |
---|
3962 | |
---|
3963 | return symbol; |
---|
3964 | }; |
---|
3965 | |
---|
3966 | function d3_svg_symbolSize() { |
---|
3967 | return 64; |
---|
3968 | } |
---|
3969 | |
---|
3970 | function d3_svg_symbolType() { |
---|
3971 | return "circle"; |
---|
3972 | } |
---|
3973 | |
---|
3974 | function d3_svg_symbolCircle(size) { |
---|
3975 | var r = Math.sqrt(size / Math.PI); |
---|
3976 | return "M0," + r |
---|
3977 | + "A" + r + "," + r + " 0 1,1 0," + (-r) |
---|
3978 | + "A" + r + "," + r + " 0 1,1 0," + r |
---|
3979 | + "Z"; |
---|
3980 | } |
---|
3981 | |
---|
3982 | // TODO cross-diagonal? |
---|
3983 | var d3_svg_symbols = d3.map({ |
---|
3984 | "circle": d3_svg_symbolCircle, |
---|
3985 | "cross": function(size) { |
---|
3986 | var r = Math.sqrt(size / 5) / 2; |
---|
3987 | return "M" + -3 * r + "," + -r |
---|
3988 | + "H" + -r |
---|
3989 | + "V" + -3 * r |
---|
3990 | + "H" + r |
---|
3991 | + "V" + -r |
---|
3992 | + "H" + 3 * r |
---|
3993 | + "V" + r |
---|
3994 | + "H" + r |
---|
3995 | + "V" + 3 * r |
---|
3996 | + "H" + -r |
---|
3997 | + "V" + r |
---|
3998 | + "H" + -3 * r |
---|
3999 | + "Z"; |
---|
4000 | }, |
---|
4001 | "diamond": function(size) { |
---|
4002 | var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), |
---|
4003 | rx = ry * d3_svg_symbolTan30; |
---|
4004 | return "M0," + -ry |
---|
4005 | + "L" + rx + ",0" |
---|
4006 | + " 0," + ry |
---|
4007 | + " " + -rx + ",0" |
---|
4008 | + "Z"; |
---|
4009 | }, |
---|
4010 | "square": function(size) { |
---|
4011 | var r = Math.sqrt(size) / 2; |
---|
4012 | return "M" + -r + "," + -r |
---|
4013 | + "L" + r + "," + -r |
---|
4014 | + " " + r + "," + r |
---|
4015 | + " " + -r + "," + r |
---|
4016 | + "Z"; |
---|
4017 | }, |
---|
4018 | "triangle-down": function(size) { |
---|
4019 | var rx = Math.sqrt(size / d3_svg_symbolSqrt3), |
---|
4020 | ry = rx * d3_svg_symbolSqrt3 / 2; |
---|
4021 | return "M0," + ry |
---|
4022 | + "L" + rx +"," + -ry |
---|
4023 | + " " + -rx + "," + -ry |
---|
4024 | + "Z"; |
---|
4025 | }, |
---|
4026 | "triangle-up": function(size) { |
---|
4027 | var rx = Math.sqrt(size / d3_svg_symbolSqrt3), |
---|
4028 | ry = rx * d3_svg_symbolSqrt3 / 2; |
---|
4029 | return "M0," + -ry |
---|
4030 | + "L" + rx +"," + ry |
---|
4031 | + " " + -rx + "," + ry |
---|
4032 | + "Z"; |
---|
4033 | } |
---|
4034 | }); |
---|
4035 | |
---|
4036 | d3.svg.symbolTypes = d3_svg_symbols.keys(); |
---|
4037 | |
---|
4038 | var d3_svg_symbolSqrt3 = Math.sqrt(3), |
---|
4039 | d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180); |
---|
4040 | d3.svg.axis = function() { |
---|
4041 | var scale = d3.scale.linear(), |
---|
4042 | orient = "bottom", |
---|
4043 | tickMajorSize = 6, |
---|
4044 | tickMinorSize = 6, |
---|
4045 | tickEndSize = 6, |
---|
4046 | tickPadding = 3, |
---|
4047 | tickArguments_ = [10], |
---|
4048 | tickValues = null, |
---|
4049 | tickFormat_, |
---|
4050 | tickSubdivide = 0; |
---|
4051 | |
---|
4052 | function axis(g) { |
---|
4053 | g.each(function() { |
---|
4054 | var g = d3.select(this); |
---|
4055 | |
---|
4056 | // Ticks, or domain values for ordinal scales. |
---|
4057 | var ticks = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain()) : tickValues, |
---|
4058 | tickFormat = tickFormat_ == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String) : tickFormat_; |
---|
4059 | |
---|
4060 | // Minor ticks. |
---|
4061 | var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide), |
---|
4062 | subtick = g.selectAll(".minor").data(subticks, String), |
---|
4063 | subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6), |
---|
4064 | subtickExit = d3.transition(subtick.exit()).style("opacity", 1e-6).remove(), |
---|
4065 | subtickUpdate = d3.transition(subtick).style("opacity", 1); |
---|
4066 | |
---|
4067 | // Major ticks. |
---|
4068 | var tick = g.selectAll("g").data(ticks, String), |
---|
4069 | tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6), |
---|
4070 | tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(), |
---|
4071 | tickUpdate = d3.transition(tick).style("opacity", 1), |
---|
4072 | tickTransform; |
---|
4073 | |
---|
4074 | // Domain. |
---|
4075 | var range = d3_scaleRange(scale), |
---|
4076 | path = g.selectAll(".domain").data([0]), |
---|
4077 | pathEnter = path.enter().append("path").attr("class", "domain"), |
---|
4078 | pathUpdate = d3.transition(path); |
---|
4079 | |
---|
4080 | // Stash a snapshot of the new scale, and retrieve the old snapshot. |
---|
4081 | var scale1 = scale.copy(), |
---|
4082 | scale0 = this.__chart__ || scale1; |
---|
4083 | this.__chart__ = scale1; |
---|
4084 | |
---|
4085 | tickEnter.append("line").attr("class", "tick"); |
---|
4086 | tickEnter.append("text"); |
---|
4087 | tickUpdate.select("text").text(tickFormat); |
---|
4088 | |
---|
4089 | switch (orient) { |
---|
4090 | case "bottom": { |
---|
4091 | tickTransform = d3_svg_axisX; |
---|
4092 | subtickEnter.attr("y2", tickMinorSize); |
---|
4093 | subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize); |
---|
4094 | tickEnter.select("line").attr("y2", tickMajorSize); |
---|
4095 | tickEnter.select("text").attr("y", Math.max(tickMajorSize, 0) + tickPadding); |
---|
4096 | tickUpdate.select("line").attr("x2", 0).attr("y2", tickMajorSize); |
---|
4097 | tickUpdate.select("text").attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding).attr("dy", ".71em").attr("text-anchor", "middle"); |
---|
4098 | pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize); |
---|
4099 | break; |
---|
4100 | } |
---|
4101 | case "top": { |
---|
4102 | tickTransform = d3_svg_axisX; |
---|
4103 | subtickEnter.attr("y2", -tickMinorSize); |
---|
4104 | subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize); |
---|
4105 | tickEnter.select("line").attr("y2", -tickMajorSize); |
---|
4106 | tickEnter.select("text").attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)); |
---|
4107 | tickUpdate.select("line").attr("x2", 0).attr("y2", -tickMajorSize); |
---|
4108 | tickUpdate.select("text").attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("dy", "0em").attr("text-anchor", "middle"); |
---|
4109 | pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize); |
---|
4110 | break; |
---|
4111 | } |
---|
4112 | case "left": { |
---|
4113 | tickTransform = d3_svg_axisY; |
---|
4114 | subtickEnter.attr("x2", -tickMinorSize); |
---|
4115 | subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0); |
---|
4116 | tickEnter.select("line").attr("x2", -tickMajorSize); |
---|
4117 | tickEnter.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)); |
---|
4118 | tickUpdate.select("line").attr("x2", -tickMajorSize).attr("y2", 0); |
---|
4119 | tickUpdate.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "end"); |
---|
4120 | pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize); |
---|
4121 | break; |
---|
4122 | } |
---|
4123 | case "right": { |
---|
4124 | tickTransform = d3_svg_axisY; |
---|
4125 | subtickEnter.attr("x2", tickMinorSize); |
---|
4126 | subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0); |
---|
4127 | tickEnter.select("line").attr("x2", tickMajorSize); |
---|
4128 | tickEnter.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding); |
---|
4129 | tickUpdate.select("line").attr("x2", tickMajorSize).attr("y2", 0); |
---|
4130 | tickUpdate.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "start"); |
---|
4131 | pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize); |
---|
4132 | break; |
---|
4133 | } |
---|
4134 | } |
---|
4135 | |
---|
4136 | // For quantitative scales: |
---|
4137 | // - enter new ticks from the old scale |
---|
4138 | // - exit old ticks to the new scale |
---|
4139 | if (scale.ticks) { |
---|
4140 | tickEnter.call(tickTransform, scale0); |
---|
4141 | tickUpdate.call(tickTransform, scale1); |
---|
4142 | tickExit.call(tickTransform, scale1); |
---|
4143 | subtickEnter.call(tickTransform, scale0); |
---|
4144 | subtickUpdate.call(tickTransform, scale1); |
---|
4145 | subtickExit.call(tickTransform, scale1); |
---|
4146 | } |
---|
4147 | |
---|
4148 | // For ordinal scales: |
---|
4149 | // - any entering ticks are undefined in the old scale |
---|
4150 | // - any exiting ticks are undefined in the new scale |
---|
4151 | // Therefore, we only need to transition updating ticks. |
---|
4152 | else { |
---|
4153 | var dx = scale1.rangeBand() / 2, x = function(d) { return scale1(d) + dx; }; |
---|
4154 | tickEnter.call(tickTransform, x); |
---|
4155 | tickUpdate.call(tickTransform, x); |
---|
4156 | } |
---|
4157 | }); |
---|
4158 | } |
---|
4159 | |
---|
4160 | axis.scale = function(x) { |
---|
4161 | if (!arguments.length) return scale; |
---|
4162 | scale = x; |
---|
4163 | return axis; |
---|
4164 | }; |
---|
4165 | |
---|
4166 | axis.orient = function(x) { |
---|
4167 | if (!arguments.length) return orient; |
---|
4168 | orient = x; |
---|
4169 | return axis; |
---|
4170 | }; |
---|
4171 | |
---|
4172 | axis.ticks = function() { |
---|
4173 | if (!arguments.length) return tickArguments_; |
---|
4174 | tickArguments_ = arguments; |
---|
4175 | return axis; |
---|
4176 | }; |
---|
4177 | |
---|
4178 | axis.tickValues = function(x) { |
---|
4179 | if (!arguments.length) return tickValues; |
---|
4180 | tickValues = x; |
---|
4181 | return axis; |
---|
4182 | }; |
---|
4183 | |
---|
4184 | axis.tickFormat = function(x) { |
---|
4185 | if (!arguments.length) return tickFormat_; |
---|
4186 | tickFormat_ = x; |
---|
4187 | return axis; |
---|
4188 | }; |
---|
4189 | |
---|
4190 | axis.tickSize = function(x, y, z) { |
---|
4191 | if (!arguments.length) return tickMajorSize; |
---|
4192 | var n = arguments.length - 1; |
---|
4193 | tickMajorSize = +x; |
---|
4194 | tickMinorSize = n > 1 ? +y : tickMajorSize; |
---|
4195 | tickEndSize = n > 0 ? +arguments[n] : tickMajorSize; |
---|
4196 | return axis; |
---|
4197 | }; |
---|
4198 | |
---|
4199 | axis.tickPadding = function(x) { |
---|
4200 | if (!arguments.length) return tickPadding; |
---|
4201 | tickPadding = +x; |
---|
4202 | return axis; |
---|
4203 | }; |
---|
4204 | |
---|
4205 | axis.tickSubdivide = function(x) { |
---|
4206 | if (!arguments.length) return tickSubdivide; |
---|
4207 | tickSubdivide = +x; |
---|
4208 | return axis; |
---|
4209 | }; |
---|
4210 | |
---|
4211 | return axis; |
---|
4212 | }; |
---|
4213 | |
---|
4214 | function d3_svg_axisX(selection, x) { |
---|
4215 | selection.attr("transform", function(d) { return "translate(" + x(d) + ",0)"; }); |
---|
4216 | } |
---|
4217 | |
---|
4218 | function d3_svg_axisY(selection, y) { |
---|
4219 | selection.attr("transform", function(d) { return "translate(0," + y(d) + ")"; }); |
---|
4220 | } |
---|
4221 | |
---|
4222 | function d3_svg_axisSubdivide(scale, ticks, m) { |
---|
4223 | subticks = []; |
---|
4224 | if (m && ticks.length > 1) { |
---|
4225 | var extent = d3_scaleExtent(scale.domain()), |
---|
4226 | subticks, |
---|
4227 | i = -1, |
---|
4228 | n = ticks.length, |
---|
4229 | d = (ticks[1] - ticks[0]) / ++m, |
---|
4230 | j, |
---|
4231 | v; |
---|
4232 | while (++i < n) { |
---|
4233 | for (j = m; --j > 0;) { |
---|
4234 | if ((v = +ticks[i] - j * d) >= extent[0]) { |
---|
4235 | subticks.push(v); |
---|
4236 | } |
---|
4237 | } |
---|
4238 | } |
---|
4239 | for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1];) { |
---|
4240 | subticks.push(v); |
---|
4241 | } |
---|
4242 | } |
---|
4243 | return subticks; |
---|
4244 | } |
---|
4245 | d3.svg.brush = function() { |
---|
4246 | var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), |
---|
4247 | x = null, // x-scale, optional |
---|
4248 | y = null, // y-scale, optional |
---|
4249 | resizes = d3_svg_brushResizes[0], |
---|
4250 | extent = [[0, 0], [0, 0]], // [x0, y0], [x1, y1], in pixels (integers) |
---|
4251 | extentDomain; // the extent in data space, lazily created |
---|
4252 | |
---|
4253 | function brush(g) { |
---|
4254 | g.each(function() { |
---|
4255 | var g = d3.select(this), |
---|
4256 | bg = g.selectAll(".background").data([0]), |
---|
4257 | fg = g.selectAll(".extent").data([0]), |
---|
4258 | tz = g.selectAll(".resize").data(resizes, String), |
---|
4259 | e; |
---|
4260 | |
---|
4261 | // Prepare the brush container for events. |
---|
4262 | g |
---|
4263 | .style("pointer-events", "all") |
---|
4264 | .on("mousedown.brush", brushstart) |
---|
4265 | .on("touchstart.brush", brushstart); |
---|
4266 | |
---|
4267 | // An invisible, mouseable area for starting a new brush. |
---|
4268 | bg.enter().append("rect") |
---|
4269 | .attr("class", "background") |
---|
4270 | .style("visibility", "hidden") |
---|
4271 | .style("cursor", "crosshair"); |
---|
4272 | |
---|
4273 | // The visible brush extent; style this as you like! |
---|
4274 | fg.enter().append("rect") |
---|
4275 | .attr("class", "extent") |
---|
4276 | .style("cursor", "move"); |
---|
4277 | |
---|
4278 | // More invisible rects for resizing the extent. |
---|
4279 | tz.enter().append("g") |
---|
4280 | .attr("class", function(d) { return "resize " + d; }) |
---|
4281 | .style("cursor", function(d) { return d3_svg_brushCursor[d]; }) |
---|
4282 | .append("rect") |
---|
4283 | .attr("x", function(d) { return /[ew]$/.test(d) ? -3 : null; }) |
---|
4284 | .attr("y", function(d) { return /^[ns]/.test(d) ? -3 : null; }) |
---|
4285 | .attr("width", 6) |
---|
4286 | .attr("height", 6) |
---|
4287 | .style("visibility", "hidden"); |
---|
4288 | |
---|
4289 | // Show or hide the resizers. |
---|
4290 | tz.style("display", brush.empty() ? "none" : null); |
---|
4291 | |
---|
4292 | // Remove any superfluous resizers. |
---|
4293 | tz.exit().remove(); |
---|
4294 | |
---|
4295 | // Initialize the background to fill the defined range. |
---|
4296 | // If the range isn't defined, you can post-process. |
---|
4297 | if (x) { |
---|
4298 | e = d3_scaleRange(x); |
---|
4299 | bg.attr("x", e[0]).attr("width", e[1] - e[0]); |
---|
4300 | redrawX(g); |
---|
4301 | } |
---|
4302 | if (y) { |
---|
4303 | e = d3_scaleRange(y); |
---|
4304 | bg.attr("y", e[0]).attr("height", e[1] - e[0]); |
---|
4305 | redrawY(g); |
---|
4306 | } |
---|
4307 | redraw(g); |
---|
4308 | }); |
---|
4309 | } |
---|
4310 | |
---|
4311 | function redraw(g) { |
---|
4312 | g.selectAll(".resize").attr("transform", function(d) { |
---|
4313 | return "translate(" + extent[+/e$/.test(d)][0] + "," + extent[+/^s/.test(d)][1] + ")"; |
---|
4314 | }); |
---|
4315 | } |
---|
4316 | |
---|
4317 | function redrawX(g) { |
---|
4318 | g.select(".extent").attr("x", extent[0][0]); |
---|
4319 | g.selectAll(".extent,.n>rect,.s>rect").attr("width", extent[1][0] - extent[0][0]); |
---|
4320 | } |
---|
4321 | |
---|
4322 | function redrawY(g) { |
---|
4323 | g.select(".extent").attr("y", extent[0][1]); |
---|
4324 | g.selectAll(".extent,.e>rect,.w>rect").attr("height", extent[1][1] - extent[0][1]); |
---|
4325 | } |
---|
4326 | |
---|
4327 | function brushstart() { |
---|
4328 | var target = this, |
---|
4329 | eventTarget = d3.select(d3.event.target), |
---|
4330 | event_ = event.of(target, arguments), |
---|
4331 | g = d3.select(target), |
---|
4332 | resizing = eventTarget.datum(), |
---|
4333 | resizingX = !/^(n|s)$/.test(resizing) && x, |
---|
4334 | resizingY = !/^(e|w)$/.test(resizing) && y, |
---|
4335 | dragging = eventTarget.classed("extent"), |
---|
4336 | center, |
---|
4337 | origin = mouse(), |
---|
4338 | offset; |
---|
4339 | |
---|
4340 | var w = d3.select(window) |
---|
4341 | .on("mousemove.brush", brushmove) |
---|
4342 | .on("mouseup.brush", brushend) |
---|
4343 | .on("touchmove.brush", brushmove) |
---|
4344 | .on("touchend.brush", brushend) |
---|
4345 | .on("keydown.brush", keydown) |
---|
4346 | .on("keyup.brush", keyup); |
---|
4347 | |
---|
4348 | // If the extent was clicked on, drag rather than brush; |
---|
4349 | // store the point between the mouse and extent origin instead. |
---|
4350 | if (dragging) { |
---|
4351 | origin[0] = extent[0][0] - origin[0]; |
---|
4352 | origin[1] = extent[0][1] - origin[1]; |
---|
4353 | } |
---|
4354 | |
---|
4355 | // If a resizer was clicked on, record which side is to be resized. |
---|
4356 | // Also, set the origin to the opposite side. |
---|
4357 | else if (resizing) { |
---|
4358 | var ex = +/w$/.test(resizing), |
---|
4359 | ey = +/^n/.test(resizing); |
---|
4360 | offset = [extent[1 - ex][0] - origin[0], extent[1 - ey][1] - origin[1]]; |
---|
4361 | origin[0] = extent[ex][0]; |
---|
4362 | origin[1] = extent[ey][1]; |
---|
4363 | } |
---|
4364 | |
---|
4365 | // If the ALT key is down when starting a brush, the center is at the mouse. |
---|
4366 | else if (d3.event.altKey) center = origin.slice(); |
---|
4367 | |
---|
4368 | // Propagate the active cursor to the body for the drag duration. |
---|
4369 | g.style("pointer-events", "none").selectAll(".resize").style("display", null); |
---|
4370 | d3.select("body").style("cursor", eventTarget.style("cursor")); |
---|
4371 | |
---|
4372 | // Notify listeners. |
---|
4373 | event_({type: "brushstart"}); |
---|
4374 | brushmove(); |
---|
4375 | d3_eventCancel(); |
---|
4376 | |
---|
4377 | function mouse() { |
---|
4378 | var touches = d3.event.changedTouches; |
---|
4379 | return touches ? d3.touches(target, touches)[0] : d3.mouse(target); |
---|
4380 | } |
---|
4381 | |
---|
4382 | function keydown() { |
---|
4383 | if (d3.event.keyCode == 32) { |
---|
4384 | if (!dragging) { |
---|
4385 | center = null; |
---|
4386 | origin[0] -= extent[1][0]; |
---|
4387 | origin[1] -= extent[1][1]; |
---|
4388 | dragging = 2; |
---|
4389 | } |
---|
4390 | d3_eventCancel(); |
---|
4391 | } |
---|
4392 | } |
---|
4393 | |
---|
4394 | function keyup() { |
---|
4395 | if (d3.event.keyCode == 32 && dragging == 2) { |
---|
4396 | origin[0] += extent[1][0]; |
---|
4397 | origin[1] += extent[1][1]; |
---|
4398 | dragging = 0; |
---|
4399 | d3_eventCancel(); |
---|
4400 | } |
---|
4401 | } |
---|
4402 | |
---|
4403 | function brushmove() { |
---|
4404 | var point = mouse(), |
---|
4405 | moved = false; |
---|
4406 | |
---|
4407 | // Preserve the offset for thick resizers. |
---|
4408 | if (offset) { |
---|
4409 | point[0] += offset[0]; |
---|
4410 | point[1] += offset[1]; |
---|
4411 | } |
---|
4412 | |
---|
4413 | if (!dragging) { |
---|
4414 | |
---|
4415 | // If needed, determine the center from the current extent. |
---|
4416 | if (d3.event.altKey) { |
---|
4417 | if (!center) center = [(extent[0][0] + extent[1][0]) / 2, (extent[0][1] + extent[1][1]) / 2]; |
---|
4418 | |
---|
4419 | // Update the origin, for when the ALT key is released. |
---|
4420 | origin[0] = extent[+(point[0] < center[0])][0]; |
---|
4421 | origin[1] = extent[+(point[1] < center[1])][1]; |
---|
4422 | } |
---|
4423 | |
---|
4424 | // When the ALT key is released, we clear the center. |
---|
4425 | else center = null; |
---|
4426 | } |
---|
4427 | |
---|
4428 | // Update the brush extent for each dimension. |
---|
4429 | if (resizingX && move1(point, x, 0)) { |
---|
4430 | redrawX(g); |
---|
4431 | moved = true; |
---|
4432 | } |
---|
4433 | if (resizingY && move1(point, y, 1)) { |
---|
4434 | redrawY(g); |
---|
4435 | moved = true; |
---|
4436 | } |
---|
4437 | |
---|
4438 | // Final redraw and notify listeners. |
---|
4439 | if (moved) { |
---|
4440 | redraw(g); |
---|
4441 | event_({type: "brush", mode: dragging ? "move" : "resize"}); |
---|
4442 | } |
---|
4443 | } |
---|
4444 | |
---|
4445 | function move1(point, scale, i) { |
---|
4446 | var range = d3_scaleRange(scale), |
---|
4447 | r0 = range[0], |
---|
4448 | r1 = range[1], |
---|
4449 | position = origin[i], |
---|
4450 | size = extent[1][i] - extent[0][i], |
---|
4451 | min, |
---|
4452 | max; |
---|
4453 | |
---|
4454 | // When dragging, reduce the range by the extent size and position. |
---|
4455 | if (dragging) { |
---|
4456 | r0 -= position; |
---|
4457 | r1 -= size + position; |
---|
4458 | } |
---|
4459 | |
---|
4460 | // Clamp the point so that the extent fits within the range extent. |
---|
4461 | min = Math.max(r0, Math.min(r1, point[i])); |
---|
4462 | |
---|
4463 | // Compute the new extent bounds. |
---|
4464 | if (dragging) { |
---|
4465 | max = (min += position) + size; |
---|
4466 | } else { |
---|
4467 | |
---|
4468 | // If the ALT key is pressed, then preserve the center of the extent. |
---|
4469 | if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min)); |
---|
4470 | |
---|
4471 | // Compute the min and max of the position and point. |
---|
4472 | if (position < min) { |
---|
4473 | max = min; |
---|
4474 | min = position; |
---|
4475 | } else { |
---|
4476 | max = position; |
---|
4477 | } |
---|
4478 | } |
---|
4479 | |
---|
4480 | // Update the stored bounds. |
---|
4481 | if (extent[0][i] !== min || extent[1][i] !== max) { |
---|
4482 | extentDomain = null; |
---|
4483 | extent[0][i] = min; |
---|
4484 | extent[1][i] = max; |
---|
4485 | return true; |
---|
4486 | } |
---|
4487 | } |
---|
4488 | |
---|
4489 | function brushend() { |
---|
4490 | brushmove(); |
---|
4491 | |
---|
4492 | // reset the cursor styles |
---|
4493 | g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null); |
---|
4494 | d3.select("body").style("cursor", null); |
---|
4495 | |
---|
4496 | w .on("mousemove.brush", null) |
---|
4497 | .on("mouseup.brush", null) |
---|
4498 | .on("touchmove.brush", null) |
---|
4499 | .on("touchend.brush", null) |
---|
4500 | .on("keydown.brush", null) |
---|
4501 | .on("keyup.brush", null); |
---|
4502 | |
---|
4503 | event_({type: "brushend"}); |
---|
4504 | d3_eventCancel(); |
---|
4505 | } |
---|
4506 | } |
---|
4507 | |
---|
4508 | brush.x = function(z) { |
---|
4509 | if (!arguments.length) return x; |
---|
4510 | x = z; |
---|
4511 | resizes = d3_svg_brushResizes[!x << 1 | !y]; // fore! |
---|
4512 | return brush; |
---|
4513 | }; |
---|
4514 | |
---|
4515 | brush.y = function(z) { |
---|
4516 | if (!arguments.length) return y; |
---|
4517 | y = z; |
---|
4518 | resizes = d3_svg_brushResizes[!x << 1 | !y]; // fore! |
---|
4519 | return brush; |
---|
4520 | }; |
---|
4521 | |
---|
4522 | brush.extent = function(z) { |
---|
4523 | var x0, x1, y0, y1, t; |
---|
4524 | |
---|
4525 | // Invert the pixel extent to data-space. |
---|
4526 | if (!arguments.length) { |
---|
4527 | z = extentDomain || extent; |
---|
4528 | if (x) { |
---|
4529 | x0 = z[0][0], x1 = z[1][0]; |
---|
4530 | if (!extentDomain) { |
---|
4531 | x0 = extent[0][0], x1 = extent[1][0]; |
---|
4532 | if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1); |
---|
4533 | if (x1 < x0) t = x0, x0 = x1, x1 = t; |
---|
4534 | } |
---|
4535 | } |
---|
4536 | if (y) { |
---|
4537 | y0 = z[0][1], y1 = z[1][1]; |
---|
4538 | if (!extentDomain) { |
---|
4539 | y0 = extent[0][1], y1 = extent[1][1]; |
---|
4540 | if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1); |
---|
4541 | if (y1 < y0) t = y0, y0 = y1, y1 = t; |
---|
4542 | } |
---|
4543 | } |
---|
4544 | return x && y ? [[x0, y0], [x1, y1]] : x ? [x0, x1] : y && [y0, y1]; |
---|
4545 | } |
---|
4546 | |
---|
4547 | // Scale the data-space extent to pixels. |
---|
4548 | extentDomain = [[0, 0], [0, 0]]; |
---|
4549 | if (x) { |
---|
4550 | x0 = z[0], x1 = z[1]; |
---|
4551 | if (y) x0 = x0[0], x1 = x1[0]; |
---|
4552 | extentDomain[0][0] = x0, extentDomain[1][0] = x1; |
---|
4553 | if (x.invert) x0 = x(x0), x1 = x(x1); |
---|
4554 | if (x1 < x0) t = x0, x0 = x1, x1 = t; |
---|
4555 | extent[0][0] = x0 | 0, extent[1][0] = x1 | 0; |
---|
4556 | } |
---|
4557 | if (y) { |
---|
4558 | y0 = z[0], y1 = z[1]; |
---|
4559 | if (x) y0 = y0[1], y1 = y1[1]; |
---|
4560 | extentDomain[0][1] = y0, extentDomain[1][1] = y1; |
---|
4561 | if (y.invert) y0 = y(y0), y1 = y(y1); |
---|
4562 | if (y1 < y0) t = y0, y0 = y1, y1 = t; |
---|
4563 | extent[0][1] = y0 | 0, extent[1][1] = y1 | 0; |
---|
4564 | } |
---|
4565 | |
---|
4566 | return brush; |
---|
4567 | }; |
---|
4568 | |
---|
4569 | brush.clear = function() { |
---|
4570 | extentDomain = null; |
---|
4571 | extent[0][0] = |
---|
4572 | extent[0][1] = |
---|
4573 | extent[1][0] = |
---|
4574 | extent[1][1] = 0; |
---|
4575 | return brush; |
---|
4576 | }; |
---|
4577 | |
---|
4578 | brush.empty = function() { |
---|
4579 | return (x && extent[0][0] === extent[1][0]) |
---|
4580 | || (y && extent[0][1] === extent[1][1]); |
---|
4581 | }; |
---|
4582 | |
---|
4583 | return d3.rebind(brush, event, "on"); |
---|
4584 | }; |
---|
4585 | |
---|
4586 | var d3_svg_brushCursor = { |
---|
4587 | n: "ns-resize", |
---|
4588 | e: "ew-resize", |
---|
4589 | s: "ns-resize", |
---|
4590 | w: "ew-resize", |
---|
4591 | nw: "nwse-resize", |
---|
4592 | ne: "nesw-resize", |
---|
4593 | se: "nwse-resize", |
---|
4594 | sw: "nesw-resize" |
---|
4595 | }; |
---|
4596 | |
---|
4597 | var d3_svg_brushResizes = [ |
---|
4598 | ["n", "e", "s", "w", "nw", "ne", "se", "sw"], |
---|
4599 | ["e", "w"], |
---|
4600 | ["n", "s"], |
---|
4601 | [] |
---|
4602 | ]; |
---|
4603 | d3.behavior = {}; |
---|
4604 | // TODO Track touch points by identifier. |
---|
4605 | |
---|
4606 | d3.behavior.drag = function() { |
---|
4607 | var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), |
---|
4608 | origin = null; |
---|
4609 | |
---|
4610 | function drag() { |
---|
4611 | this.on("mousedown.drag", mousedown) |
---|
4612 | .on("touchstart.drag", mousedown); |
---|
4613 | } |
---|
4614 | |
---|
4615 | function mousedown() { |
---|
4616 | var target = this, |
---|
4617 | event_ = event.of(target, arguments), |
---|
4618 | eventTarget = d3.event.target, |
---|
4619 | offset, |
---|
4620 | origin_ = point(), |
---|
4621 | moved = 0; |
---|
4622 | |
---|
4623 | var w = d3.select(window) |
---|
4624 | .on("mousemove.drag", dragmove) |
---|
4625 | .on("touchmove.drag", dragmove) |
---|
4626 | .on("mouseup.drag", dragend, true) |
---|
4627 | .on("touchend.drag", dragend, true); |
---|
4628 | |
---|
4629 | if (origin) { |
---|
4630 | offset = origin.apply(target, arguments); |
---|
4631 | offset = [offset.x - origin_[0], offset.y - origin_[1]]; |
---|
4632 | } else { |
---|
4633 | offset = [0, 0]; |
---|
4634 | } |
---|
4635 | |
---|
4636 | event_({type: "dragstart"}); |
---|
4637 | |
---|
4638 | function point() { |
---|
4639 | var p = target.parentNode, |
---|
4640 | t = d3.event.changedTouches; |
---|
4641 | return t ? d3.touches(p, t)[0] : d3.mouse(p); |
---|
4642 | } |
---|
4643 | |
---|
4644 | function dragmove() { |
---|
4645 | if (!target.parentNode) return dragend(); // target removed from DOM |
---|
4646 | |
---|
4647 | var p = point(), |
---|
4648 | dx = p[0] - origin_[0], |
---|
4649 | dy = p[1] - origin_[1]; |
---|
4650 | |
---|
4651 | moved |= dx | dy; |
---|
4652 | origin_ = p; |
---|
4653 | d3_eventCancel(); |
---|
4654 | |
---|
4655 | event_({type: "drag", x: p[0] + offset[0], y: p[1] + offset[1], dx: dx, dy: dy}); |
---|
4656 | } |
---|
4657 | |
---|
4658 | function dragend() { |
---|
4659 | event_({type: "dragend"}); |
---|
4660 | |
---|
4661 | // if moved, prevent the mouseup (and possibly click) from propagating |
---|
4662 | if (moved) { |
---|
4663 | d3_eventCancel(); |
---|
4664 | if (d3.event.target === eventTarget) w.on("click.drag", click, true); |
---|
4665 | } |
---|
4666 | |
---|
4667 | w .on("mousemove.drag", null) |
---|
4668 | .on("touchmove.drag", null) |
---|
4669 | .on("mouseup.drag", null) |
---|
4670 | .on("touchend.drag", null); |
---|
4671 | } |
---|
4672 | |
---|
4673 | // prevent the subsequent click from propagating (e.g., for anchors) |
---|
4674 | function click() { |
---|
4675 | d3_eventCancel(); |
---|
4676 | w.on("click.drag", null); |
---|
4677 | } |
---|
4678 | } |
---|
4679 | |
---|
4680 | drag.origin = function(x) { |
---|
4681 | if (!arguments.length) return origin; |
---|
4682 | origin = x; |
---|
4683 | return drag; |
---|
4684 | }; |
---|
4685 | |
---|
4686 | return d3.rebind(drag, event, "on"); |
---|
4687 | }; |
---|
4688 | d3.behavior.zoom = function() { |
---|
4689 | var translate = [0, 0], |
---|
4690 | translate0, // translate when we started zooming (to avoid drift) |
---|
4691 | scale = 1, |
---|
4692 | scale0, // scale when we started touching |
---|
4693 | scaleExtent = d3_behavior_zoomInfinity, |
---|
4694 | event = d3_eventDispatch(zoom, "zoom"), |
---|
4695 | x0, |
---|
4696 | x1, |
---|
4697 | y0, |
---|
4698 | y1, |
---|
4699 | touchtime; // time of last touchstart (to detect double-tap) |
---|
4700 | |
---|
4701 | function zoom() { |
---|
4702 | this |
---|
4703 | .on("mousedown.zoom", mousedown) |
---|
4704 | .on("mousewheel.zoom", mousewheel) |
---|
4705 | .on("mousemove.zoom", mousemove) |
---|
4706 | .on("DOMMouseScroll.zoom", mousewheel) |
---|
4707 | .on("dblclick.zoom", dblclick) |
---|
4708 | .on("touchstart.zoom", touchstart) |
---|
4709 | .on("touchmove.zoom", touchmove) |
---|
4710 | .on("touchend.zoom", touchstart); |
---|
4711 | } |
---|
4712 | |
---|
4713 | zoom.translate = function(x) { |
---|
4714 | if (!arguments.length) return translate; |
---|
4715 | translate = x.map(Number); |
---|
4716 | return zoom; |
---|
4717 | }; |
---|
4718 | |
---|
4719 | zoom.scale = function(x) { |
---|
4720 | if (!arguments.length) return scale; |
---|
4721 | scale = +x; |
---|
4722 | return zoom; |
---|
4723 | }; |
---|
4724 | |
---|
4725 | zoom.scaleExtent = function(x) { |
---|
4726 | if (!arguments.length) return scaleExtent; |
---|
4727 | scaleExtent = x == null ? d3_behavior_zoomInfinity : x.map(Number); |
---|
4728 | return zoom; |
---|
4729 | }; |
---|
4730 | |
---|
4731 | zoom.x = function(z) { |
---|
4732 | if (!arguments.length) return x1; |
---|
4733 | x1 = z; |
---|
4734 | x0 = z.copy(); |
---|
4735 | return zoom; |
---|
4736 | }; |
---|
4737 | |
---|
4738 | zoom.y = function(z) { |
---|
4739 | if (!arguments.length) return y1; |
---|
4740 | y1 = z; |
---|
4741 | y0 = z.copy(); |
---|
4742 | return zoom; |
---|
4743 | }; |
---|
4744 | |
---|
4745 | function location(p) { |
---|
4746 | return [(p[0] - translate[0]) / scale, (p[1] - translate[1]) / scale]; |
---|
4747 | } |
---|
4748 | |
---|
4749 | function point(l) { |
---|
4750 | return [l[0] * scale + translate[0], l[1] * scale + translate[1]]; |
---|
4751 | } |
---|
4752 | |
---|
4753 | function scaleTo(s) { |
---|
4754 | scale = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s)); |
---|
4755 | } |
---|
4756 | |
---|
4757 | function translateTo(p, l) { |
---|
4758 | l = point(l); |
---|
4759 | translate[0] += p[0] - l[0]; |
---|
4760 | translate[1] += p[1] - l[1]; |
---|
4761 | } |
---|
4762 | |
---|
4763 | function dispatch(event) { |
---|
4764 | if (x1) x1.domain(x0.range().map(function(x) { return (x - translate[0]) / scale; }).map(x0.invert)); |
---|
4765 | if (y1) y1.domain(y0.range().map(function(y) { return (y - translate[1]) / scale; }).map(y0.invert)); |
---|
4766 | d3.event.preventDefault(); |
---|
4767 | event({type: "zoom", scale: scale, translate: translate}); |
---|
4768 | } |
---|
4769 | |
---|
4770 | function mousedown() { |
---|
4771 | var target = this, |
---|
4772 | event_ = event.of(target, arguments), |
---|
4773 | eventTarget = d3.event.target, |
---|
4774 | moved = 0, |
---|
4775 | w = d3.select(window).on("mousemove.zoom", mousemove).on("mouseup.zoom", mouseup), |
---|
4776 | l = location(d3.mouse(target)); |
---|
4777 | |
---|
4778 | window.focus(); |
---|
4779 | d3_eventCancel(); |
---|
4780 | |
---|
4781 | function mousemove() { |
---|
4782 | moved = 1; |
---|
4783 | translateTo(d3.mouse(target), l); |
---|
4784 | dispatch(event_); |
---|
4785 | } |
---|
4786 | |
---|
4787 | function mouseup() { |
---|
4788 | if (moved) d3_eventCancel(); |
---|
4789 | w.on("mousemove.zoom", null).on("mouseup.zoom", null); |
---|
4790 | if (moved && d3.event.target === eventTarget) w.on("click.zoom", click); |
---|
4791 | } |
---|
4792 | |
---|
4793 | function click() { |
---|
4794 | d3_eventCancel(); |
---|
4795 | w.on("click.zoom", null); |
---|
4796 | } |
---|
4797 | } |
---|
4798 | |
---|
4799 | function mousewheel() { |
---|
4800 | if (!translate0) translate0 = location(d3.mouse(this)); |
---|
4801 | scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * scale); |
---|
4802 | translateTo(d3.mouse(this), translate0); |
---|
4803 | dispatch(event.of(this, arguments)); |
---|
4804 | } |
---|
4805 | |
---|
4806 | function mousemove() { |
---|
4807 | translate0 = null; |
---|
4808 | } |
---|
4809 | |
---|
4810 | function dblclick() { |
---|
4811 | var p = d3.mouse(this), l = location(p); |
---|
4812 | scaleTo(d3.event.shiftKey ? scale / 2 : scale * 2); |
---|
4813 | translateTo(p, l); |
---|
4814 | dispatch(event.of(this, arguments)); |
---|
4815 | } |
---|
4816 | |
---|
4817 | function touchstart() { |
---|
4818 | var touches = d3.touches(this), |
---|
4819 | now = Date.now(); |
---|
4820 | |
---|
4821 | scale0 = scale; |
---|
4822 | translate0 = {}; |
---|
4823 | touches.forEach(function(t) { translate0[t.identifier] = location(t); }); |
---|
4824 | d3_eventCancel(); |
---|
4825 | |
---|
4826 | if ((touches.length === 1) && (now - touchtime < 500)) { // dbltap |
---|
4827 | var p = touches[0], l = location(touches[0]); |
---|
4828 | scaleTo(scale * 2); |
---|
4829 | translateTo(p, l); |
---|
4830 | dispatch(event.of(this, arguments)); |
---|
4831 | } |
---|
4832 | touchtime = now; |
---|
4833 | } |
---|
4834 | |
---|
4835 | function touchmove() { |
---|
4836 | var touches = d3.touches(this), |
---|
4837 | p0 = touches[0], |
---|
4838 | l0 = translate0[p0.identifier]; |
---|
4839 | if (p1 = touches[1]) { |
---|
4840 | var p1, l1 = translate0[p1.identifier]; |
---|
4841 | p0 = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2]; |
---|
4842 | l0 = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2]; |
---|
4843 | scaleTo(d3.event.scale * scale0); |
---|
4844 | } |
---|
4845 | translateTo(p0, l0); |
---|
4846 | dispatch(event.of(this, arguments)); |
---|
4847 | } |
---|
4848 | |
---|
4849 | return d3.rebind(zoom, event, "on"); |
---|
4850 | }; |
---|
4851 | |
---|
4852 | var d3_behavior_zoomDiv, // for interpreting mousewheel events |
---|
4853 | d3_behavior_zoomInfinity = [0, Infinity]; // default scale extent |
---|
4854 | |
---|
4855 | function d3_behavior_zoomDelta() { |
---|
4856 | |
---|
4857 | // mousewheel events are totally broken! |
---|
4858 | // https://bugs.webkit.org/show_bug.cgi?id=40441 |
---|
4859 | // not only that, but Chrome and Safari differ in re. to acceleration! |
---|
4860 | if (!d3_behavior_zoomDiv) { |
---|
4861 | d3_behavior_zoomDiv = d3.select("body").append("div") |
---|
4862 | .style("visibility", "hidden") |
---|
4863 | .style("top", 0) |
---|
4864 | .style("height", 0) |
---|
4865 | .style("width", 0) |
---|
4866 | .style("overflow-y", "scroll") |
---|
4867 | .append("div") |
---|
4868 | .style("height", "2000px") |
---|
4869 | .node().parentNode; |
---|
4870 | } |
---|
4871 | |
---|
4872 | var e = d3.event, delta; |
---|
4873 | try { |
---|
4874 | d3_behavior_zoomDiv.scrollTop = 1000; |
---|
4875 | d3_behavior_zoomDiv.dispatchEvent(e); |
---|
4876 | delta = 1000 - d3_behavior_zoomDiv.scrollTop; |
---|
4877 | } catch (error) { |
---|
4878 | delta = e.wheelDelta || (-e.detail * 5); |
---|
4879 | } |
---|
4880 | |
---|
4881 | return delta; |
---|
4882 | } |
---|
4883 | d3.layout = {}; |
---|
4884 | // Implements hierarchical edge bundling using Holten's algorithm. For each |
---|
4885 | // input link, a path is computed that travels through the tree, up the parent |
---|
4886 | // hierarchy to the least common ancestor, and then back down to the destination |
---|
4887 | // node. Each path is simply an array of nodes. |
---|
4888 | d3.layout.bundle = function() { |
---|
4889 | return function(links) { |
---|
4890 | var paths = [], |
---|
4891 | i = -1, |
---|
4892 | n = links.length; |
---|
4893 | while (++i < n) paths.push(d3_layout_bundlePath(links[i])); |
---|
4894 | return paths; |
---|
4895 | }; |
---|
4896 | }; |
---|
4897 | |
---|
4898 | function d3_layout_bundlePath(link) { |
---|
4899 | var start = link.source, |
---|
4900 | end = link.target, |
---|
4901 | lca = d3_layout_bundleLeastCommonAncestor(start, end), |
---|
4902 | points = [start]; |
---|
4903 | while (start !== lca) { |
---|
4904 | start = start.parent; |
---|
4905 | points.push(start); |
---|
4906 | } |
---|
4907 | var k = points.length; |
---|
4908 | while (end !== lca) { |
---|
4909 | points.splice(k, 0, end); |
---|
4910 | end = end.parent; |
---|
4911 | } |
---|
4912 | return points; |
---|
4913 | } |
---|
4914 | |
---|
4915 | function d3_layout_bundleAncestors(node) { |
---|
4916 | var ancestors = [], |
---|
4917 | parent = node.parent; |
---|
4918 | while (parent != null) { |
---|
4919 | ancestors.push(node); |
---|
4920 | node = parent; |
---|
4921 | parent = parent.parent; |
---|
4922 | } |
---|
4923 | ancestors.push(node); |
---|
4924 | return ancestors; |
---|
4925 | } |
---|
4926 | |
---|
4927 | function d3_layout_bundleLeastCommonAncestor(a, b) { |
---|
4928 | if (a === b) return a; |
---|
4929 | var aNodes = d3_layout_bundleAncestors(a), |
---|
4930 | bNodes = d3_layout_bundleAncestors(b), |
---|
4931 | aNode = aNodes.pop(), |
---|
4932 | bNode = bNodes.pop(), |
---|
4933 | sharedNode = null; |
---|
4934 | while (aNode === bNode) { |
---|
4935 | sharedNode = aNode; |
---|
4936 | aNode = aNodes.pop(); |
---|
4937 | bNode = bNodes.pop(); |
---|
4938 | } |
---|
4939 | return sharedNode; |
---|
4940 | } |
---|
4941 | d3.layout.chord = function() { |
---|
4942 | var chord = {}, |
---|
4943 | chords, |
---|
4944 | groups, |
---|
4945 | matrix, |
---|
4946 | n, |
---|
4947 | padding = 0, |
---|
4948 | sortGroups, |
---|
4949 | sortSubgroups, |
---|
4950 | sortChords; |
---|
4951 | |
---|
4952 | function relayout() { |
---|
4953 | var subgroups = {}, |
---|
4954 | groupSums = [], |
---|
4955 | groupIndex = d3.range(n), |
---|
4956 | subgroupIndex = [], |
---|
4957 | k, |
---|
4958 | x, |
---|
4959 | x0, |
---|
4960 | i, |
---|
4961 | j; |
---|
4962 | |
---|
4963 | chords = []; |
---|
4964 | groups = []; |
---|
4965 | |
---|
4966 | // Compute the sum. |
---|
4967 | k = 0, i = -1; while (++i < n) { |
---|
4968 | x = 0, j = -1; while (++j < n) { |
---|
4969 | x += matrix[i][j]; |
---|
4970 | } |
---|
4971 | groupSums.push(x); |
---|
4972 | subgroupIndex.push(d3.range(n)); |
---|
4973 | k += x; |
---|
4974 | } |
---|
4975 | |
---|
4976 | // Sort groups⊠|
---|
4977 | if (sortGroups) { |
---|
4978 | groupIndex.sort(function(a, b) { |
---|
4979 | return sortGroups(groupSums[a], groupSums[b]); |
---|
4980 | }); |
---|
4981 | } |
---|
4982 | |
---|
4983 | // Sort subgroups⊠|
---|
4984 | if (sortSubgroups) { |
---|
4985 | subgroupIndex.forEach(function(d, i) { |
---|
4986 | d.sort(function(a, b) { |
---|
4987 | return sortSubgroups(matrix[i][a], matrix[i][b]); |
---|
4988 | }); |
---|
4989 | }); |
---|
4990 | } |
---|
4991 | |
---|
4992 | // Convert the sum to scaling factor for [0, 2pi]. |
---|
4993 | // TODO Allow start and end angle to be specified. |
---|
4994 | // TODO Allow padding to be specified as percentage? |
---|
4995 | k = (2 * Math.PI - padding * n) / k; |
---|
4996 | |
---|
4997 | // Compute the start and end angle for each group and subgroup. |
---|
4998 | // Note: Opera has a bug reordering object literal properties! |
---|
4999 | x = 0, i = -1; while (++i < n) { |
---|
5000 | x0 = x, j = -1; while (++j < n) { |
---|
5001 | var di = groupIndex[i], |
---|
5002 | dj = subgroupIndex[di][j], |
---|
5003 | v = matrix[di][dj], |
---|
5004 | a0 = x, |
---|
5005 | a1 = x += v * k; |
---|
5006 | subgroups[di + "-" + dj] = { |
---|
5007 | index: di, |
---|
5008 | subindex: dj, |
---|
5009 | startAngle: a0, |
---|
5010 | endAngle: a1, |
---|
5011 | value: v |
---|
5012 | }; |
---|
5013 | } |
---|
5014 | groups.push({ |
---|
5015 | index: di, |
---|
5016 | startAngle: x0, |
---|
5017 | endAngle: x, |
---|
5018 | value: (x - x0) / k |
---|
5019 | }); |
---|
5020 | x += padding; |
---|
5021 | } |
---|
5022 | |
---|
5023 | // Generate chords for each (non-empty) subgroup-subgroup link. |
---|
5024 | i = -1; while (++i < n) { |
---|
5025 | j = i - 1; while (++j < n) { |
---|
5026 | var source = subgroups[i + "-" + j], |
---|
5027 | target = subgroups[j + "-" + i]; |
---|
5028 | if (source.value || target.value) { |
---|
5029 | chords.push(source.value < target.value |
---|
5030 | ? {source: target, target: source} |
---|
5031 | : {source: source, target: target}); |
---|
5032 | } |
---|
5033 | } |
---|
5034 | } |
---|
5035 | |
---|
5036 | if (sortChords) resort(); |
---|
5037 | } |
---|
5038 | |
---|
5039 | function resort() { |
---|
5040 | chords.sort(function(a, b) { |
---|
5041 | return sortChords( |
---|
5042 | (a.source.value + a.target.value) / 2, |
---|
5043 | (b.source.value + b.target.value) / 2); |
---|
5044 | }); |
---|
5045 | } |
---|
5046 | |
---|
5047 | chord.matrix = function(x) { |
---|
5048 | if (!arguments.length) return matrix; |
---|
5049 | n = (matrix = x) && matrix.length; |
---|
5050 | chords = groups = null; |
---|
5051 | return chord; |
---|
5052 | }; |
---|
5053 | |
---|
5054 | chord.padding = function(x) { |
---|
5055 | if (!arguments.length) return padding; |
---|
5056 | padding = x; |
---|
5057 | chords = groups = null; |
---|
5058 | return chord; |
---|
5059 | }; |
---|
5060 | |
---|
5061 | chord.sortGroups = function(x) { |
---|
5062 | if (!arguments.length) return sortGroups; |
---|
5063 | sortGroups = x; |
---|
5064 | chords = groups = null; |
---|
5065 | return chord; |
---|
5066 | }; |
---|
5067 | |
---|
5068 | chord.sortSubgroups = function(x) { |
---|
5069 | if (!arguments.length) return sortSubgroups; |
---|
5070 | sortSubgroups = x; |
---|
5071 | chords = null; |
---|
5072 | return chord; |
---|
5073 | }; |
---|
5074 | |
---|
5075 | chord.sortChords = function(x) { |
---|
5076 | if (!arguments.length) return sortChords; |
---|
5077 | sortChords = x; |
---|
5078 | if (chords) resort(); |
---|
5079 | return chord; |
---|
5080 | }; |
---|
5081 | |
---|
5082 | chord.chords = function() { |
---|
5083 | if (!chords) relayout(); |
---|
5084 | return chords; |
---|
5085 | }; |
---|
5086 | |
---|
5087 | chord.groups = function() { |
---|
5088 | if (!groups) relayout(); |
---|
5089 | return groups; |
---|
5090 | }; |
---|
5091 | |
---|
5092 | return chord; |
---|
5093 | }; |
---|
5094 | // A rudimentary force layout using Gauss-Seidel. |
---|
5095 | d3.layout.force = function() { |
---|
5096 | var force = {}, |
---|
5097 | event = d3.dispatch("start", "tick", "end"), |
---|
5098 | size = [1, 1], |
---|
5099 | drag, |
---|
5100 | alpha, |
---|
5101 | friction = .9, |
---|
5102 | linkDistance = d3_layout_forceLinkDistance, |
---|
5103 | linkStrength = d3_layout_forceLinkStrength, |
---|
5104 | charge = -30, |
---|
5105 | gravity = .1, |
---|
5106 | theta = .8, |
---|
5107 | interval, |
---|
5108 | nodes = [], |
---|
5109 | links = [], |
---|
5110 | distances, |
---|
5111 | strengths, |
---|
5112 | charges; |
---|
5113 | |
---|
5114 | function repulse(node) { |
---|
5115 | return function(quad, x1, y1, x2, y2) { |
---|
5116 | if (quad.point !== node) { |
---|
5117 | var dx = quad.cx - node.x, |
---|
5118 | dy = quad.cy - node.y, |
---|
5119 | dn = 1 / Math.sqrt(dx * dx + dy * dy); |
---|
5120 | |
---|
5121 | /* Barnes-Hut criterion. */ |
---|
5122 | if ((x2 - x1) * dn < theta) { |
---|
5123 | var k = quad.charge * dn * dn; |
---|
5124 | node.px -= dx * k; |
---|
5125 | node.py -= dy * k; |
---|
5126 | return true; |
---|
5127 | } |
---|
5128 | |
---|
5129 | if (quad.point && isFinite(dn)) { |
---|
5130 | var k = quad.pointCharge * dn * dn; |
---|
5131 | node.px -= dx * k; |
---|
5132 | node.py -= dy * k; |
---|
5133 | } |
---|
5134 | } |
---|
5135 | return !quad.charge; |
---|
5136 | }; |
---|
5137 | } |
---|
5138 | |
---|
5139 | force.tick = function() { |
---|
5140 | // simulated annealing, basically |
---|
5141 | if ((alpha *= .99) < .005) { |
---|
5142 | event.end({type: "end", alpha: alpha = 0}); |
---|
5143 | return true; |
---|
5144 | } |
---|
5145 | |
---|
5146 | var n = nodes.length, |
---|
5147 | m = links.length, |
---|
5148 | q, |
---|
5149 | i, // current index |
---|
5150 | o, // current object |
---|
5151 | s, // current source |
---|
5152 | t, // current target |
---|
5153 | l, // current distance |
---|
5154 | k, // current force |
---|
5155 | x, // x-distance |
---|
5156 | y; // y-distance |
---|
5157 | |
---|
5158 | // gauss-seidel relaxation for links |
---|
5159 | for (i = 0; i < m; ++i) { |
---|
5160 | o = links[i]; |
---|
5161 | s = o.source; |
---|
5162 | t = o.target; |
---|
5163 | x = t.x - s.x; |
---|
5164 | y = t.y - s.y; |
---|
5165 | if (l = (x * x + y * y)) { |
---|
5166 | l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l; |
---|
5167 | x *= l; |
---|
5168 | y *= l; |
---|
5169 | t.x -= x * (k = s.weight / (t.weight + s.weight)); |
---|
5170 | t.y -= y * k; |
---|
5171 | s.x += x * (k = 1 - k); |
---|
5172 | s.y += y * k; |
---|
5173 | } |
---|
5174 | } |
---|
5175 | |
---|
5176 | // apply gravity forces |
---|
5177 | if (k = alpha * gravity) { |
---|
5178 | x = size[0] / 2; |
---|
5179 | y = size[1] / 2; |
---|
5180 | i = -1; if (k) while (++i < n) { |
---|
5181 | o = nodes[i]; |
---|
5182 | o.x += (x - o.x) * k; |
---|
5183 | o.y += (y - o.y) * k; |
---|
5184 | } |
---|
5185 | } |
---|
5186 | |
---|
5187 | // compute quadtree center of mass and apply charge forces |
---|
5188 | if (charge) { |
---|
5189 | d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges); |
---|
5190 | i = -1; while (++i < n) { |
---|
5191 | if (!(o = nodes[i]).fixed) { |
---|
5192 | q.visit(repulse(o)); |
---|
5193 | } |
---|
5194 | } |
---|
5195 | } |
---|
5196 | |
---|
5197 | // position verlet integration |
---|
5198 | i = -1; while (++i < n) { |
---|
5199 | o = nodes[i]; |
---|
5200 | if (o.fixed) { |
---|
5201 | o.x = o.px; |
---|
5202 | o.y = o.py; |
---|
5203 | } else { |
---|
5204 | o.x -= (o.px - (o.px = o.x)) * friction; |
---|
5205 | o.y -= (o.py - (o.py = o.y)) * friction; |
---|
5206 | } |
---|
5207 | } |
---|
5208 | |
---|
5209 | event.tick({type: "tick", alpha: alpha}); |
---|
5210 | }; |
---|
5211 | |
---|
5212 | force.nodes = function(x) { |
---|
5213 | if (!arguments.length) return nodes; |
---|
5214 | nodes = x; |
---|
5215 | return force; |
---|
5216 | }; |
---|
5217 | |
---|
5218 | force.links = function(x) { |
---|
5219 | if (!arguments.length) return links; |
---|
5220 | links = x; |
---|
5221 | return force; |
---|
5222 | }; |
---|
5223 | |
---|
5224 | force.size = function(x) { |
---|
5225 | if (!arguments.length) return size; |
---|
5226 | size = x; |
---|
5227 | return force; |
---|
5228 | }; |
---|
5229 | |
---|
5230 | force.linkDistance = function(x) { |
---|
5231 | if (!arguments.length) return linkDistance; |
---|
5232 | linkDistance = d3.functor(x); |
---|
5233 | return force; |
---|
5234 | }; |
---|
5235 | |
---|
5236 | // For backwards-compatibility. |
---|
5237 | force.distance = force.linkDistance; |
---|
5238 | |
---|
5239 | force.linkStrength = function(x) { |
---|
5240 | if (!arguments.length) return linkStrength; |
---|
5241 | linkStrength = d3.functor(x); |
---|
5242 | return force; |
---|
5243 | }; |
---|
5244 | |
---|
5245 | force.friction = function(x) { |
---|
5246 | if (!arguments.length) return friction; |
---|
5247 | friction = x; |
---|
5248 | return force; |
---|
5249 | }; |
---|
5250 | |
---|
5251 | force.charge = function(x) { |
---|
5252 | if (!arguments.length) return charge; |
---|
5253 | charge = typeof x === "function" ? x : +x; |
---|
5254 | return force; |
---|
5255 | }; |
---|
5256 | |
---|
5257 | force.gravity = function(x) { |
---|
5258 | if (!arguments.length) return gravity; |
---|
5259 | gravity = x; |
---|
5260 | return force; |
---|
5261 | }; |
---|
5262 | |
---|
5263 | force.theta = function(x) { |
---|
5264 | if (!arguments.length) return theta; |
---|
5265 | theta = x; |
---|
5266 | return force; |
---|
5267 | }; |
---|
5268 | |
---|
5269 | force.alpha = function(x) { |
---|
5270 | if (!arguments.length) return alpha; |
---|
5271 | |
---|
5272 | if (alpha) { // if we're already running |
---|
5273 | if (x > 0) alpha = x; // we might keep it hot |
---|
5274 | else alpha = 0; // or, next tick will dispatch "end" |
---|
5275 | } else if (x > 0) { // otherwise, fire it up! |
---|
5276 | event.start({type: "start", alpha: alpha = x}); |
---|
5277 | d3.timer(force.tick); |
---|
5278 | } |
---|
5279 | |
---|
5280 | return force; |
---|
5281 | }; |
---|
5282 | |
---|
5283 | force.start = function() { |
---|
5284 | var i, |
---|
5285 | j, |
---|
5286 | n = nodes.length, |
---|
5287 | m = links.length, |
---|
5288 | w = size[0], |
---|
5289 | h = size[1], |
---|
5290 | neighbors, |
---|
5291 | o; |
---|
5292 | |
---|
5293 | for (i = 0; i < n; ++i) { |
---|
5294 | (o = nodes[i]).index = i; |
---|
5295 | o.weight = 0; |
---|
5296 | } |
---|
5297 | |
---|
5298 | distances = []; |
---|
5299 | strengths = []; |
---|
5300 | for (i = 0; i < m; ++i) { |
---|
5301 | o = links[i]; |
---|
5302 | if (typeof o.source == "number") o.source = nodes[o.source]; |
---|
5303 | if (typeof o.target == "number") o.target = nodes[o.target]; |
---|
5304 | distances[i] = linkDistance.call(this, o, i); |
---|
5305 | strengths[i] = linkStrength.call(this, o, i); |
---|
5306 | ++o.source.weight; |
---|
5307 | ++o.target.weight; |
---|
5308 | } |
---|
5309 | |
---|
5310 | for (i = 0; i < n; ++i) { |
---|
5311 | o = nodes[i]; |
---|
5312 | if (isNaN(o.x)) o.x = position("x", w); |
---|
5313 | if (isNaN(o.y)) o.y = position("y", h); |
---|
5314 | if (isNaN(o.px)) o.px = o.x; |
---|
5315 | if (isNaN(o.py)) o.py = o.y; |
---|
5316 | } |
---|
5317 | |
---|
5318 | charges = []; |
---|
5319 | if (typeof charge === "function") { |
---|
5320 | for (i = 0; i < n; ++i) { |
---|
5321 | charges[i] = +charge.call(this, nodes[i], i); |
---|
5322 | } |
---|
5323 | } else { |
---|
5324 | for (i = 0; i < n; ++i) { |
---|
5325 | charges[i] = charge; |
---|
5326 | } |
---|
5327 | } |
---|
5328 | |
---|
5329 | // initialize node position based on first neighbor |
---|
5330 | function position(dimension, size) { |
---|
5331 | var neighbors = neighbor(i), |
---|
5332 | j = -1, |
---|
5333 | m = neighbors.length, |
---|
5334 | x; |
---|
5335 | while (++j < m) if (!isNaN(x = neighbors[j][dimension])) return x; |
---|
5336 | return Math.random() * size; |
---|
5337 | } |
---|
5338 | |
---|
5339 | // initialize neighbors lazily |
---|
5340 | function neighbor() { |
---|
5341 | if (!neighbors) { |
---|
5342 | neighbors = []; |
---|
5343 | for (j = 0; j < n; ++j) { |
---|
5344 | neighbors[j] = []; |
---|
5345 | } |
---|
5346 | for (j = 0; j < m; ++j) { |
---|
5347 | var o = links[j]; |
---|
5348 | neighbors[o.source.index].push(o.target); |
---|
5349 | neighbors[o.target.index].push(o.source); |
---|
5350 | } |
---|
5351 | } |
---|
5352 | return neighbors[i]; |
---|
5353 | } |
---|
5354 | |
---|
5355 | return force.resume(); |
---|
5356 | }; |
---|
5357 | |
---|
5358 | force.resume = function() { |
---|
5359 | return force.alpha(.1); |
---|
5360 | }; |
---|
5361 | |
---|
5362 | force.stop = function() { |
---|
5363 | return force.alpha(0); |
---|
5364 | }; |
---|
5365 | |
---|
5366 | // use `node.call(force.drag)` to make nodes draggable |
---|
5367 | force.drag = function() { |
---|
5368 | if (!drag) drag = d3.behavior.drag() |
---|
5369 | .origin(Object) |
---|
5370 | .on("dragstart", dragstart) |
---|
5371 | .on("drag", d3_layout_forceDrag) |
---|
5372 | .on("dragend", d3_layout_forceDragEnd); |
---|
5373 | |
---|
5374 | this.on("mouseover.force", d3_layout_forceDragOver) |
---|
5375 | .on("mouseout.force", d3_layout_forceDragOut) |
---|
5376 | .call(drag); |
---|
5377 | }; |
---|
5378 | |
---|
5379 | function dragstart(d) { |
---|
5380 | d3_layout_forceDragOver(d3_layout_forceDragNode = d); |
---|
5381 | d3_layout_forceDragForce = force; |
---|
5382 | } |
---|
5383 | |
---|
5384 | return d3.rebind(force, event, "on"); |
---|
5385 | }; |
---|
5386 | |
---|
5387 | var d3_layout_forceDragForce, |
---|
5388 | d3_layout_forceDragNode; |
---|
5389 | |
---|
5390 | function d3_layout_forceDragOver(d) { |
---|
5391 | d.fixed |= 2; |
---|
5392 | } |
---|
5393 | |
---|
5394 | function d3_layout_forceDragOut(d) { |
---|
5395 | if (d !== d3_layout_forceDragNode) d.fixed &= 1; |
---|
5396 | } |
---|
5397 | |
---|
5398 | function d3_layout_forceDragEnd() { |
---|
5399 | d3_layout_forceDragNode.fixed &= 1; |
---|
5400 | d3_layout_forceDragForce = d3_layout_forceDragNode = null; |
---|
5401 | } |
---|
5402 | |
---|
5403 | function d3_layout_forceDrag() { |
---|
5404 | d3_layout_forceDragNode.px = d3.event.x; |
---|
5405 | d3_layout_forceDragNode.py = d3.event.y; |
---|
5406 | d3_layout_forceDragForce.resume(); // restart annealing |
---|
5407 | } |
---|
5408 | |
---|
5409 | function d3_layout_forceAccumulate(quad, alpha, charges) { |
---|
5410 | var cx = 0, |
---|
5411 | cy = 0; |
---|
5412 | quad.charge = 0; |
---|
5413 | if (!quad.leaf) { |
---|
5414 | var nodes = quad.nodes, |
---|
5415 | n = nodes.length, |
---|
5416 | i = -1, |
---|
5417 | c; |
---|
5418 | while (++i < n) { |
---|
5419 | c = nodes[i]; |
---|
5420 | if (c == null) continue; |
---|
5421 | d3_layout_forceAccumulate(c, alpha, charges); |
---|
5422 | quad.charge += c.charge; |
---|
5423 | cx += c.charge * c.cx; |
---|
5424 | cy += c.charge * c.cy; |
---|
5425 | } |
---|
5426 | } |
---|
5427 | if (quad.point) { |
---|
5428 | // jitter internal nodes that are coincident |
---|
5429 | if (!quad.leaf) { |
---|
5430 | quad.point.x += Math.random() - .5; |
---|
5431 | quad.point.y += Math.random() - .5; |
---|
5432 | } |
---|
5433 | var k = alpha * charges[quad.point.index]; |
---|
5434 | quad.charge += quad.pointCharge = k; |
---|
5435 | cx += k * quad.point.x; |
---|
5436 | cy += k * quad.point.y; |
---|
5437 | } |
---|
5438 | quad.cx = cx / quad.charge; |
---|
5439 | quad.cy = cy / quad.charge; |
---|
5440 | } |
---|
5441 | |
---|
5442 | function d3_layout_forceLinkDistance(link) { |
---|
5443 | return 20; |
---|
5444 | } |
---|
5445 | |
---|
5446 | function d3_layout_forceLinkStrength(link) { |
---|
5447 | return 1; |
---|
5448 | } |
---|
5449 | d3.layout.partition = function() { |
---|
5450 | var hierarchy = d3.layout.hierarchy(), |
---|
5451 | size = [1, 1]; // width, height |
---|
5452 | |
---|
5453 | function position(node, x, dx, dy) { |
---|
5454 | var children = node.children; |
---|
5455 | node.x = x; |
---|
5456 | node.y = node.depth * dy; |
---|
5457 | node.dx = dx; |
---|
5458 | node.dy = dy; |
---|
5459 | if (children && (n = children.length)) { |
---|
5460 | var i = -1, |
---|
5461 | n, |
---|
5462 | c, |
---|
5463 | d; |
---|
5464 | dx = node.value ? dx / node.value : 0; |
---|
5465 | while (++i < n) { |
---|
5466 | position(c = children[i], x, d = c.value * dx, dy); |
---|
5467 | x += d; |
---|
5468 | } |
---|
5469 | } |
---|
5470 | } |
---|
5471 | |
---|
5472 | function depth(node) { |
---|
5473 | var children = node.children, |
---|
5474 | d = 0; |
---|
5475 | if (children && (n = children.length)) { |
---|
5476 | var i = -1, |
---|
5477 | n; |
---|
5478 | while (++i < n) d = Math.max(d, depth(children[i])); |
---|
5479 | } |
---|
5480 | return 1 + d; |
---|
5481 | } |
---|
5482 | |
---|
5483 | function partition(d, i) { |
---|
5484 | var nodes = hierarchy.call(this, d, i); |
---|
5485 | position(nodes[0], 0, size[0], size[1] / depth(nodes[0])); |
---|
5486 | return nodes; |
---|
5487 | } |
---|
5488 | |
---|
5489 | partition.size = function(x) { |
---|
5490 | if (!arguments.length) return size; |
---|
5491 | size = x; |
---|
5492 | return partition; |
---|
5493 | }; |
---|
5494 | |
---|
5495 | return d3_layout_hierarchyRebind(partition, hierarchy); |
---|
5496 | }; |
---|
5497 | d3.layout.pie = function() { |
---|
5498 | var value = Number, |
---|
5499 | sort = d3_layout_pieSortByValue, |
---|
5500 | startAngle = 0, |
---|
5501 | endAngle = 2 * Math.PI; |
---|
5502 | |
---|
5503 | function pie(data, i) { |
---|
5504 | |
---|
5505 | // Compute the numeric values for each data element. |
---|
5506 | var values = data.map(function(d, i) { return +value.call(pie, d, i); }); |
---|
5507 | |
---|
5508 | // Compute the start angle. |
---|
5509 | var a = +(typeof startAngle === "function" |
---|
5510 | ? startAngle.apply(this, arguments) |
---|
5511 | : startAngle); |
---|
5512 | |
---|
5513 | // Compute the angular scale factor: from value to radians. |
---|
5514 | var k = ((typeof endAngle === "function" |
---|
5515 | ? endAngle.apply(this, arguments) |
---|
5516 | : endAngle) - startAngle) |
---|
5517 | / d3.sum(values); |
---|
5518 | |
---|
5519 | // Optionally sort the data. |
---|
5520 | var index = d3.range(data.length); |
---|
5521 | if (sort != null) index.sort(sort === d3_layout_pieSortByValue |
---|
5522 | ? function(i, j) { return values[j] - values[i]; } |
---|
5523 | : function(i, j) { return sort(data[i], data[j]); }); |
---|
5524 | |
---|
5525 | // Compute the arcs! |
---|
5526 | // They are stored in the original data's order. |
---|
5527 | var arcs = []; |
---|
5528 | index.forEach(function(i) { |
---|
5529 | arcs[i] = { |
---|
5530 | data: data[i], |
---|
5531 | value: d = values[i], |
---|
5532 | startAngle: a, |
---|
5533 | endAngle: a += d * k |
---|
5534 | }; |
---|
5535 | }); |
---|
5536 | return arcs; |
---|
5537 | } |
---|
5538 | |
---|
5539 | /** |
---|
5540 | * Specifies the value function *x*, which returns a nonnegative numeric value |
---|
5541 | * for each datum. The default value function is `Number`. The value function |
---|
5542 | * is passed two arguments: the current datum and the current index. |
---|
5543 | */ |
---|
5544 | pie.value = function(x) { |
---|
5545 | if (!arguments.length) return value; |
---|
5546 | value = x; |
---|
5547 | return pie; |
---|
5548 | }; |
---|
5549 | |
---|
5550 | /** |
---|
5551 | * Specifies a sort comparison operator *x*. The comparator is passed two data |
---|
5552 | * elements from the data array, a and b; it returns a negative value if a is |
---|
5553 | * less than b, a positive value if a is greater than b, and zero if a equals |
---|
5554 | * b. |
---|
5555 | */ |
---|
5556 | pie.sort = function(x) { |
---|
5557 | if (!arguments.length) return sort; |
---|
5558 | sort = x; |
---|
5559 | return pie; |
---|
5560 | }; |
---|
5561 | |
---|
5562 | /** |
---|
5563 | * Specifies the overall start angle of the pie chart. Defaults to 0. The |
---|
5564 | * start angle can be specified either as a constant or as a function; in the |
---|
5565 | * case of a function, it is evaluated once per array (as opposed to per |
---|
5566 | * element). |
---|
5567 | */ |
---|
5568 | pie.startAngle = function(x) { |
---|
5569 | if (!arguments.length) return startAngle; |
---|
5570 | startAngle = x; |
---|
5571 | return pie; |
---|
5572 | }; |
---|
5573 | |
---|
5574 | /** |
---|
5575 | * Specifies the overall end angle of the pie chart. Defaults to 2Ï. The |
---|
5576 | * end angle can be specified either as a constant or as a function; in the |
---|
5577 | * case of a function, it is evaluated once per array (as opposed to per |
---|
5578 | * element). |
---|
5579 | */ |
---|
5580 | pie.endAngle = function(x) { |
---|
5581 | if (!arguments.length) return endAngle; |
---|
5582 | endAngle = x; |
---|
5583 | return pie; |
---|
5584 | }; |
---|
5585 | |
---|
5586 | return pie; |
---|
5587 | }; |
---|
5588 | |
---|
5589 | var d3_layout_pieSortByValue = {}; |
---|
5590 | // data is two-dimensional array of x,y; we populate y0 |
---|
5591 | d3.layout.stack = function() { |
---|
5592 | var values = Object, |
---|
5593 | order = d3_layout_stackOrderDefault, |
---|
5594 | offset = d3_layout_stackOffsetZero, |
---|
5595 | out = d3_layout_stackOut, |
---|
5596 | x = d3_layout_stackX, |
---|
5597 | y = d3_layout_stackY; |
---|
5598 | |
---|
5599 | function stack(data, index) { |
---|
5600 | |
---|
5601 | // Convert series to canonical two-dimensional representation. |
---|
5602 | var series = data.map(function(d, i) { |
---|
5603 | return values.call(stack, d, i); |
---|
5604 | }); |
---|
5605 | |
---|
5606 | // Convert each series to canonical [[x,y]] representation. |
---|
5607 | var points = series.map(function(d, i) { |
---|
5608 | return d.map(function(v, i) { |
---|
5609 | return [x.call(stack, v, i), y.call(stack, v, i)]; |
---|
5610 | }); |
---|
5611 | }); |
---|
5612 | |
---|
5613 | // Compute the order of series, and permute them. |
---|
5614 | var orders = order.call(stack, points, index); |
---|
5615 | series = d3.permute(series, orders); |
---|
5616 | points = d3.permute(points, orders); |
---|
5617 | |
---|
5618 | // Compute the baseline⊠|
---|
5619 | var offsets = offset.call(stack, points, index); |
---|
5620 | |
---|
5621 | // And propagate it to other series. |
---|
5622 | var n = series.length, |
---|
5623 | m = series[0].length, |
---|
5624 | i, |
---|
5625 | j, |
---|
5626 | o; |
---|
5627 | for (j = 0; j < m; ++j) { |
---|
5628 | out.call(stack, series[0][j], o = offsets[j], points[0][j][1]); |
---|
5629 | for (i = 1; i < n; ++i) { |
---|
5630 | out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]); |
---|
5631 | } |
---|
5632 | } |
---|
5633 | |
---|
5634 | return data; |
---|
5635 | } |
---|
5636 | |
---|
5637 | stack.values = function(x) { |
---|
5638 | if (!arguments.length) return values; |
---|
5639 | values = x; |
---|
5640 | return stack; |
---|
5641 | }; |
---|
5642 | |
---|
5643 | stack.order = function(x) { |
---|
5644 | if (!arguments.length) return order; |
---|
5645 | order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault; |
---|
5646 | return stack; |
---|
5647 | }; |
---|
5648 | |
---|
5649 | stack.offset = function(x) { |
---|
5650 | if (!arguments.length) return offset; |
---|
5651 | offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero; |
---|
5652 | return stack; |
---|
5653 | }; |
---|
5654 | |
---|
5655 | stack.x = function(z) { |
---|
5656 | if (!arguments.length) return x; |
---|
5657 | x = z; |
---|
5658 | return stack; |
---|
5659 | }; |
---|
5660 | |
---|
5661 | stack.y = function(z) { |
---|
5662 | if (!arguments.length) return y; |
---|
5663 | y = z; |
---|
5664 | return stack; |
---|
5665 | }; |
---|
5666 | |
---|
5667 | stack.out = function(z) { |
---|
5668 | if (!arguments.length) return out; |
---|
5669 | out = z; |
---|
5670 | return stack; |
---|
5671 | }; |
---|
5672 | |
---|
5673 | return stack; |
---|
5674 | } |
---|
5675 | |
---|
5676 | function d3_layout_stackX(d) { |
---|
5677 | return d.x; |
---|
5678 | } |
---|
5679 | |
---|
5680 | function d3_layout_stackY(d) { |
---|
5681 | return d.y; |
---|
5682 | } |
---|
5683 | |
---|
5684 | function d3_layout_stackOut(d, y0, y) { |
---|
5685 | d.y0 = y0; |
---|
5686 | d.y = y; |
---|
5687 | } |
---|
5688 | |
---|
5689 | var d3_layout_stackOrders = d3.map({ |
---|
5690 | |
---|
5691 | "inside-out": function(data) { |
---|
5692 | var n = data.length, |
---|
5693 | i, |
---|
5694 | j, |
---|
5695 | max = data.map(d3_layout_stackMaxIndex), |
---|
5696 | sums = data.map(d3_layout_stackReduceSum), |
---|
5697 | index = d3.range(n).sort(function(a, b) { return max[a] - max[b]; }), |
---|
5698 | top = 0, |
---|
5699 | bottom = 0, |
---|
5700 | tops = [], |
---|
5701 | bottoms = []; |
---|
5702 | for (i = 0; i < n; ++i) { |
---|
5703 | j = index[i]; |
---|
5704 | if (top < bottom) { |
---|
5705 | top += sums[j]; |
---|
5706 | tops.push(j); |
---|
5707 | } else { |
---|
5708 | bottom += sums[j]; |
---|
5709 | bottoms.push(j); |
---|
5710 | } |
---|
5711 | } |
---|
5712 | return bottoms.reverse().concat(tops); |
---|
5713 | }, |
---|
5714 | |
---|
5715 | "reverse": function(data) { |
---|
5716 | return d3.range(data.length).reverse(); |
---|
5717 | }, |
---|
5718 | |
---|
5719 | "default": d3_layout_stackOrderDefault |
---|
5720 | |
---|
5721 | }); |
---|
5722 | |
---|
5723 | var d3_layout_stackOffsets = d3.map({ |
---|
5724 | |
---|
5725 | "silhouette": function(data) { |
---|
5726 | var n = data.length, |
---|
5727 | m = data[0].length, |
---|
5728 | sums = [], |
---|
5729 | max = 0, |
---|
5730 | i, |
---|
5731 | j, |
---|
5732 | o, |
---|
5733 | y0 = []; |
---|
5734 | for (j = 0; j < m; ++j) { |
---|
5735 | for (i = 0, o = 0; i < n; i++) o += data[i][j][1]; |
---|
5736 | if (o > max) max = o; |
---|
5737 | sums.push(o); |
---|
5738 | } |
---|
5739 | for (j = 0; j < m; ++j) { |
---|
5740 | y0[j] = (max - sums[j]) / 2; |
---|
5741 | } |
---|
5742 | return y0; |
---|
5743 | }, |
---|
5744 | |
---|
5745 | "wiggle": function(data) { |
---|
5746 | var n = data.length, |
---|
5747 | x = data[0], |
---|
5748 | m = x.length, |
---|
5749 | max = 0, |
---|
5750 | i, |
---|
5751 | j, |
---|
5752 | k, |
---|
5753 | s1, |
---|
5754 | s2, |
---|
5755 | s3, |
---|
5756 | dx, |
---|
5757 | o, |
---|
5758 | o0, |
---|
5759 | y0 = []; |
---|
5760 | y0[0] = o = o0 = 0; |
---|
5761 | for (j = 1; j < m; ++j) { |
---|
5762 | for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1]; |
---|
5763 | for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) { |
---|
5764 | for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) { |
---|
5765 | s3 += (data[k][j][1] - data[k][j - 1][1]) / dx; |
---|
5766 | } |
---|
5767 | s2 += s3 * data[i][j][1]; |
---|
5768 | } |
---|
5769 | y0[j] = o -= s1 ? s2 / s1 * dx : 0; |
---|
5770 | if (o < o0) o0 = o; |
---|
5771 | } |
---|
5772 | for (j = 0; j < m; ++j) y0[j] -= o0; |
---|
5773 | return y0; |
---|
5774 | }, |
---|
5775 | |
---|
5776 | "expand": function(data) { |
---|
5777 | var n = data.length, |
---|
5778 | m = data[0].length, |
---|
5779 | k = 1 / n, |
---|
5780 | i, |
---|
5781 | j, |
---|
5782 | o, |
---|
5783 | y0 = []; |
---|
5784 | for (j = 0; j < m; ++j) { |
---|
5785 | for (i = 0, o = 0; i < n; i++) o += data[i][j][1]; |
---|
5786 | if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; |
---|
5787 | else for (i = 0; i < n; i++) data[i][j][1] = k; |
---|
5788 | } |
---|
5789 | for (j = 0; j < m; ++j) y0[j] = 0; |
---|
5790 | return y0; |
---|
5791 | }, |
---|
5792 | |
---|
5793 | "zero": d3_layout_stackOffsetZero |
---|
5794 | |
---|
5795 | }); |
---|
5796 | |
---|
5797 | function d3_layout_stackOrderDefault(data) { |
---|
5798 | return d3.range(data.length); |
---|
5799 | } |
---|
5800 | |
---|
5801 | function d3_layout_stackOffsetZero(data) { |
---|
5802 | var j = -1, |
---|
5803 | m = data[0].length, |
---|
5804 | y0 = []; |
---|
5805 | while (++j < m) y0[j] = 0; |
---|
5806 | return y0; |
---|
5807 | } |
---|
5808 | |
---|
5809 | function d3_layout_stackMaxIndex(array) { |
---|
5810 | var i = 1, |
---|
5811 | j = 0, |
---|
5812 | v = array[0][1], |
---|
5813 | k, |
---|
5814 | n = array.length; |
---|
5815 | for (; i < n; ++i) { |
---|
5816 | if ((k = array[i][1]) > v) { |
---|
5817 | j = i; |
---|
5818 | v = k; |
---|
5819 | } |
---|
5820 | } |
---|
5821 | return j; |
---|
5822 | } |
---|
5823 | |
---|
5824 | function d3_layout_stackReduceSum(d) { |
---|
5825 | return d.reduce(d3_layout_stackSum, 0); |
---|
5826 | } |
---|
5827 | |
---|
5828 | function d3_layout_stackSum(p, d) { |
---|
5829 | return p + d[1]; |
---|
5830 | } |
---|
5831 | d3.layout.histogram = function() { |
---|
5832 | var frequency = true, |
---|
5833 | valuer = Number, |
---|
5834 | ranger = d3_layout_histogramRange, |
---|
5835 | binner = d3_layout_histogramBinSturges; |
---|
5836 | |
---|
5837 | function histogram(data, i) { |
---|
5838 | var bins = [], |
---|
5839 | values = data.map(valuer, this), |
---|
5840 | range = ranger.call(this, values, i), |
---|
5841 | thresholds = binner.call(this, range, values, i), |
---|
5842 | bin, |
---|
5843 | i = -1, |
---|
5844 | n = values.length, |
---|
5845 | m = thresholds.length - 1, |
---|
5846 | k = frequency ? 1 : 1 / n, |
---|
5847 | x; |
---|
5848 | |
---|
5849 | // Initialize the bins. |
---|
5850 | while (++i < m) { |
---|
5851 | bin = bins[i] = []; |
---|
5852 | bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]); |
---|
5853 | bin.y = 0; |
---|
5854 | } |
---|
5855 | |
---|
5856 | // Fill the bins, ignoring values outside the range. |
---|
5857 | i = -1; while(++i < n) { |
---|
5858 | x = values[i]; |
---|
5859 | if ((x >= range[0]) && (x <= range[1])) { |
---|
5860 | bin = bins[d3.bisect(thresholds, x, 1, m) - 1]; |
---|
5861 | bin.y += k; |
---|
5862 | bin.push(data[i]); |
---|
5863 | } |
---|
5864 | } |
---|
5865 | |
---|
5866 | return bins; |
---|
5867 | } |
---|
5868 | |
---|
5869 | // Specifies how to extract a value from the associated data. The default |
---|
5870 | // value function is `Number`, which is equivalent to the identity function. |
---|
5871 | histogram.value = function(x) { |
---|
5872 | if (!arguments.length) return valuer; |
---|
5873 | valuer = x; |
---|
5874 | return histogram; |
---|
5875 | }; |
---|
5876 | |
---|
5877 | // Specifies the range of the histogram. Values outside the specified range |
---|
5878 | // will be ignored. The argument `x` may be specified either as a two-element |
---|
5879 | // array representing the minimum and maximum value of the range, or as a |
---|
5880 | // function that returns the range given the array of values and the current |
---|
5881 | // index `i`. The default range is the extent (minimum and maximum) of the |
---|
5882 | // values. |
---|
5883 | histogram.range = function(x) { |
---|
5884 | if (!arguments.length) return ranger; |
---|
5885 | ranger = d3.functor(x); |
---|
5886 | return histogram; |
---|
5887 | }; |
---|
5888 | |
---|
5889 | // Specifies how to bin values in the histogram. The argument `x` may be |
---|
5890 | // specified as a number, in which case the range of values will be split |
---|
5891 | // uniformly into the given number of bins. Or, `x` may be an array of |
---|
5892 | // threshold values, defining the bins; the specified array must contain the |
---|
5893 | // rightmost (upper) value, thus specifying n + 1 values for n bins. Or, `x` |
---|
5894 | // may be a function which is evaluated, being passed the range, the array of |
---|
5895 | // values, and the current index `i`, returning an array of thresholds. The |
---|
5896 | // default bin function will divide the values into uniform bins using |
---|
5897 | // Sturges' formula. |
---|
5898 | histogram.bins = function(x) { |
---|
5899 | if (!arguments.length) return binner; |
---|
5900 | binner = typeof x === "number" |
---|
5901 | ? function(range) { return d3_layout_histogramBinFixed(range, x); } |
---|
5902 | : d3.functor(x); |
---|
5903 | return histogram; |
---|
5904 | }; |
---|
5905 | |
---|
5906 | // Specifies whether the histogram's `y` value is a count (frequency) or a |
---|
5907 | // probability (density). The default value is true. |
---|
5908 | histogram.frequency = function(x) { |
---|
5909 | if (!arguments.length) return frequency; |
---|
5910 | frequency = !!x; |
---|
5911 | return histogram; |
---|
5912 | }; |
---|
5913 | |
---|
5914 | return histogram; |
---|
5915 | }; |
---|
5916 | |
---|
5917 | function d3_layout_histogramBinSturges(range, values) { |
---|
5918 | return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1)); |
---|
5919 | } |
---|
5920 | |
---|
5921 | function d3_layout_histogramBinFixed(range, n) { |
---|
5922 | var x = -1, |
---|
5923 | b = +range[0], |
---|
5924 | m = (range[1] - b) / n, |
---|
5925 | f = []; |
---|
5926 | while (++x <= n) f[x] = m * x + b; |
---|
5927 | return f; |
---|
5928 | } |
---|
5929 | |
---|
5930 | function d3_layout_histogramRange(values) { |
---|
5931 | return [d3.min(values), d3.max(values)]; |
---|
5932 | } |
---|
5933 | d3.layout.hierarchy = function() { |
---|
5934 | var sort = d3_layout_hierarchySort, |
---|
5935 | children = d3_layout_hierarchyChildren, |
---|
5936 | value = d3_layout_hierarchyValue; |
---|
5937 | |
---|
5938 | // Recursively compute the node depth and value. |
---|
5939 | // Also converts the data representation into a standard hierarchy structure. |
---|
5940 | function recurse(data, depth, nodes) { |
---|
5941 | var childs = children.call(hierarchy, data, depth), |
---|
5942 | node = d3_layout_hierarchyInline ? data : {data: data}; |
---|
5943 | node.depth = depth; |
---|
5944 | nodes.push(node); |
---|
5945 | if (childs && (n = childs.length)) { |
---|
5946 | var i = -1, |
---|
5947 | n, |
---|
5948 | c = node.children = [], |
---|
5949 | v = 0, |
---|
5950 | j = depth + 1; |
---|
5951 | while (++i < n) { |
---|
5952 | d = recurse(childs[i], j, nodes); |
---|
5953 | d.parent = node; |
---|
5954 | c.push(d); |
---|
5955 | v += d.value; |
---|
5956 | } |
---|
5957 | if (sort) c.sort(sort); |
---|
5958 | if (value) node.value = v; |
---|
5959 | } else if (value) { |
---|
5960 | node.value = +value.call(hierarchy, data, depth) || 0; |
---|
5961 | } |
---|
5962 | return node; |
---|
5963 | } |
---|
5964 | |
---|
5965 | // Recursively re-evaluates the node value. |
---|
5966 | function revalue(node, depth) { |
---|
5967 | var children = node.children, |
---|
5968 | v = 0; |
---|
5969 | if (children && (n = children.length)) { |
---|
5970 | var i = -1, |
---|
5971 | n, |
---|
5972 | j = depth + 1; |
---|
5973 | while (++i < n) v += revalue(children[i], j); |
---|
5974 | } else if (value) { |
---|
5975 | v = +value.call(hierarchy, d3_layout_hierarchyInline ? node : node.data, depth) || 0; |
---|
5976 | } |
---|
5977 | if (value) node.value = v; |
---|
5978 | return v; |
---|
5979 | } |
---|
5980 | |
---|
5981 | function hierarchy(d) { |
---|
5982 | var nodes = []; |
---|
5983 | recurse(d, 0, nodes); |
---|
5984 | return nodes; |
---|
5985 | } |
---|
5986 | |
---|
5987 | hierarchy.sort = function(x) { |
---|
5988 | if (!arguments.length) return sort; |
---|
5989 | sort = x; |
---|
5990 | return hierarchy; |
---|
5991 | }; |
---|
5992 | |
---|
5993 | hierarchy.children = function(x) { |
---|
5994 | if (!arguments.length) return children; |
---|
5995 | children = x; |
---|
5996 | return hierarchy; |
---|
5997 | }; |
---|
5998 | |
---|
5999 | hierarchy.value = function(x) { |
---|
6000 | if (!arguments.length) return value; |
---|
6001 | value = x; |
---|
6002 | return hierarchy; |
---|
6003 | }; |
---|
6004 | |
---|
6005 | // Re-evaluates the `value` property for the specified hierarchy. |
---|
6006 | hierarchy.revalue = function(root) { |
---|
6007 | revalue(root, 0); |
---|
6008 | return root; |
---|
6009 | }; |
---|
6010 | |
---|
6011 | return hierarchy; |
---|
6012 | }; |
---|
6013 | |
---|
6014 | // A method assignment helper for hierarchy subclasses. |
---|
6015 | function d3_layout_hierarchyRebind(object, hierarchy) { |
---|
6016 | d3.rebind(object, hierarchy, "sort", "children", "value"); |
---|
6017 | |
---|
6018 | // Add an alias for links, for convenience. |
---|
6019 | object.links = d3_layout_hierarchyLinks; |
---|
6020 | |
---|
6021 | // If the new API is used, enabling inlining. |
---|
6022 | object.nodes = function(d) { |
---|
6023 | d3_layout_hierarchyInline = true; |
---|
6024 | return (object.nodes = object)(d); |
---|
6025 | }; |
---|
6026 | |
---|
6027 | return object; |
---|
6028 | } |
---|
6029 | |
---|
6030 | function d3_layout_hierarchyChildren(d) { |
---|
6031 | return d.children; |
---|
6032 | } |
---|
6033 | |
---|
6034 | function d3_layout_hierarchyValue(d) { |
---|
6035 | return d.value; |
---|
6036 | } |
---|
6037 | |
---|
6038 | function d3_layout_hierarchySort(a, b) { |
---|
6039 | return b.value - a.value; |
---|
6040 | } |
---|
6041 | |
---|
6042 | // Returns an array source+target objects for the specified nodes. |
---|
6043 | function d3_layout_hierarchyLinks(nodes) { |
---|
6044 | return d3.merge(nodes.map(function(parent) { |
---|
6045 | return (parent.children || []).map(function(child) { |
---|
6046 | return {source: parent, target: child}; |
---|
6047 | }); |
---|
6048 | })); |
---|
6049 | } |
---|
6050 | |
---|
6051 | // For backwards-compatibility, don't enable inlining by default. |
---|
6052 | var d3_layout_hierarchyInline = false; |
---|
6053 | d3.layout.pack = function() { |
---|
6054 | var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), |
---|
6055 | size = [1, 1]; |
---|
6056 | |
---|
6057 | function pack(d, i) { |
---|
6058 | var nodes = hierarchy.call(this, d, i), |
---|
6059 | root = nodes[0]; |
---|
6060 | |
---|
6061 | // Recursively compute the layout. |
---|
6062 | root.x = 0; |
---|
6063 | root.y = 0; |
---|
6064 | d3_layout_packTree(root); |
---|
6065 | |
---|
6066 | // Scale the layout to fit the requested size. |
---|
6067 | var w = size[0], |
---|
6068 | h = size[1], |
---|
6069 | k = 1 / Math.max(2 * root.r / w, 2 * root.r / h); |
---|
6070 | d3_layout_packTransform(root, w / 2, h / 2, k); |
---|
6071 | |
---|
6072 | return nodes; |
---|
6073 | } |
---|
6074 | |
---|
6075 | pack.size = function(x) { |
---|
6076 | if (!arguments.length) return size; |
---|
6077 | size = x; |
---|
6078 | return pack; |
---|
6079 | }; |
---|
6080 | |
---|
6081 | return d3_layout_hierarchyRebind(pack, hierarchy); |
---|
6082 | }; |
---|
6083 | |
---|
6084 | function d3_layout_packSort(a, b) { |
---|
6085 | return a.value - b.value; |
---|
6086 | } |
---|
6087 | |
---|
6088 | function d3_layout_packInsert(a, b) { |
---|
6089 | var c = a._pack_next; |
---|
6090 | a._pack_next = b; |
---|
6091 | b._pack_prev = a; |
---|
6092 | b._pack_next = c; |
---|
6093 | c._pack_prev = b; |
---|
6094 | } |
---|
6095 | |
---|
6096 | function d3_layout_packSplice(a, b) { |
---|
6097 | a._pack_next = b; |
---|
6098 | b._pack_prev = a; |
---|
6099 | } |
---|
6100 | |
---|
6101 | function d3_layout_packIntersects(a, b) { |
---|
6102 | var dx = b.x - a.x, |
---|
6103 | dy = b.y - a.y, |
---|
6104 | dr = a.r + b.r; |
---|
6105 | return dr * dr - dx * dx - dy * dy > .001; // within epsilon |
---|
6106 | } |
---|
6107 | |
---|
6108 | function d3_layout_packCircle(nodes) { |
---|
6109 | var xMin = Infinity, |
---|
6110 | xMax = -Infinity, |
---|
6111 | yMin = Infinity, |
---|
6112 | yMax = -Infinity, |
---|
6113 | n = nodes.length, |
---|
6114 | a, b, c, j, k; |
---|
6115 | |
---|
6116 | function bound(node) { |
---|
6117 | xMin = Math.min(node.x - node.r, xMin); |
---|
6118 | xMax = Math.max(node.x + node.r, xMax); |
---|
6119 | yMin = Math.min(node.y - node.r, yMin); |
---|
6120 | yMax = Math.max(node.y + node.r, yMax); |
---|
6121 | } |
---|
6122 | |
---|
6123 | // Create node links. |
---|
6124 | nodes.forEach(d3_layout_packLink); |
---|
6125 | |
---|
6126 | // Create first node. |
---|
6127 | a = nodes[0]; |
---|
6128 | a.x = -a.r; |
---|
6129 | a.y = 0; |
---|
6130 | bound(a); |
---|
6131 | |
---|
6132 | // Create second node. |
---|
6133 | if (n > 1) { |
---|
6134 | b = nodes[1]; |
---|
6135 | b.x = b.r; |
---|
6136 | b.y = 0; |
---|
6137 | bound(b); |
---|
6138 | |
---|
6139 | // Create third node and build chain. |
---|
6140 | if (n > 2) { |
---|
6141 | c = nodes[2]; |
---|
6142 | d3_layout_packPlace(a, b, c); |
---|
6143 | bound(c); |
---|
6144 | d3_layout_packInsert(a, c); |
---|
6145 | a._pack_prev = c; |
---|
6146 | d3_layout_packInsert(c, b); |
---|
6147 | b = a._pack_next; |
---|
6148 | |
---|
6149 | // Now iterate through the rest. |
---|
6150 | for (var i = 3; i < n; i++) { |
---|
6151 | d3_layout_packPlace(a, b, c = nodes[i]); |
---|
6152 | |
---|
6153 | // Search for the closest intersection. |
---|
6154 | var isect = 0, s1 = 1, s2 = 1; |
---|
6155 | for (j = b._pack_next; j !== b; j = j._pack_next, s1++) { |
---|
6156 | if (d3_layout_packIntersects(j, c)) { |
---|
6157 | isect = 1; |
---|
6158 | break; |
---|
6159 | } |
---|
6160 | } |
---|
6161 | if (isect == 1) { |
---|
6162 | for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) { |
---|
6163 | if (d3_layout_packIntersects(k, c)) { |
---|
6164 | break; |
---|
6165 | } |
---|
6166 | } |
---|
6167 | } |
---|
6168 | |
---|
6169 | // Update node chain. |
---|
6170 | if (isect) { |
---|
6171 | if (s1 < s2 || (s1 == s2 && b.r < a.r)) d3_layout_packSplice(a, b = j); |
---|
6172 | else d3_layout_packSplice(a = k, b); |
---|
6173 | i--; |
---|
6174 | } else { |
---|
6175 | d3_layout_packInsert(a, c); |
---|
6176 | b = c; |
---|
6177 | bound(c); |
---|
6178 | } |
---|
6179 | } |
---|
6180 | } |
---|
6181 | } |
---|
6182 | |
---|
6183 | // Re-center the circles and return the encompassing radius. |
---|
6184 | var cx = (xMin + xMax) / 2, |
---|
6185 | cy = (yMin + yMax) / 2, |
---|
6186 | cr = 0; |
---|
6187 | for (var i = 0; i < n; i++) { |
---|
6188 | var node = nodes[i]; |
---|
6189 | node.x -= cx; |
---|
6190 | node.y -= cy; |
---|
6191 | cr = Math.max(cr, node.r + Math.sqrt(node.x * node.x + node.y * node.y)); |
---|
6192 | } |
---|
6193 | |
---|
6194 | // Remove node links. |
---|
6195 | nodes.forEach(d3_layout_packUnlink); |
---|
6196 | |
---|
6197 | return cr; |
---|
6198 | } |
---|
6199 | |
---|
6200 | function d3_layout_packLink(node) { |
---|
6201 | node._pack_next = node._pack_prev = node; |
---|
6202 | } |
---|
6203 | |
---|
6204 | function d3_layout_packUnlink(node) { |
---|
6205 | delete node._pack_next; |
---|
6206 | delete node._pack_prev; |
---|
6207 | } |
---|
6208 | |
---|
6209 | function d3_layout_packTree(node) { |
---|
6210 | var children = node.children; |
---|
6211 | if (children && children.length) { |
---|
6212 | children.forEach(d3_layout_packTree); |
---|
6213 | node.r = d3_layout_packCircle(children); |
---|
6214 | } else { |
---|
6215 | node.r = Math.sqrt(node.value); |
---|
6216 | } |
---|
6217 | } |
---|
6218 | |
---|
6219 | function d3_layout_packTransform(node, x, y, k) { |
---|
6220 | var children = node.children; |
---|
6221 | node.x = (x += k * node.x); |
---|
6222 | node.y = (y += k * node.y); |
---|
6223 | node.r *= k; |
---|
6224 | if (children) { |
---|
6225 | var i = -1, n = children.length; |
---|
6226 | while (++i < n) d3_layout_packTransform(children[i], x, y, k); |
---|
6227 | } |
---|
6228 | } |
---|
6229 | |
---|
6230 | function d3_layout_packPlace(a, b, c) { |
---|
6231 | var db = a.r + c.r, |
---|
6232 | dx = b.x - a.x, |
---|
6233 | dy = b.y - a.y; |
---|
6234 | if (db && (dx || dy)) { |
---|
6235 | var da = b.r + c.r, |
---|
6236 | dc = Math.sqrt(dx * dx + dy * dy), |
---|
6237 | cos = Math.max(-1, Math.min(1, (db * db + dc * dc - da * da) / (2 * db * dc))), |
---|
6238 | theta = Math.acos(cos), |
---|
6239 | x = cos * (db /= dc), |
---|
6240 | y = Math.sin(theta) * db; |
---|
6241 | c.x = a.x + x * dx + y * dy; |
---|
6242 | c.y = a.y + x * dy - y * dx; |
---|
6243 | } else { |
---|
6244 | c.x = a.x + db; |
---|
6245 | c.y = a.y; |
---|
6246 | } |
---|
6247 | } |
---|
6248 | // Implements a hierarchical layout using the cluster (or dendrogram) |
---|
6249 | // algorithm. |
---|
6250 | d3.layout.cluster = function() { |
---|
6251 | var hierarchy = d3.layout.hierarchy().sort(null).value(null), |
---|
6252 | separation = d3_layout_treeSeparation, |
---|
6253 | size = [1, 1]; // width, height |
---|
6254 | |
---|
6255 | function cluster(d, i) { |
---|
6256 | var nodes = hierarchy.call(this, d, i), |
---|
6257 | root = nodes[0], |
---|
6258 | previousNode, |
---|
6259 | x = 0, |
---|
6260 | kx, |
---|
6261 | ky; |
---|
6262 | |
---|
6263 | // First walk, computing the initial x & y values. |
---|
6264 | d3_layout_treeVisitAfter(root, function(node) { |
---|
6265 | var children = node.children; |
---|
6266 | if (children && children.length) { |
---|
6267 | node.x = d3_layout_clusterX(children); |
---|
6268 | node.y = d3_layout_clusterY(children); |
---|
6269 | } else { |
---|
6270 | node.x = previousNode ? x += separation(node, previousNode) : 0; |
---|
6271 | node.y = 0; |
---|
6272 | previousNode = node; |
---|
6273 | } |
---|
6274 | }); |
---|
6275 | |
---|
6276 | // Compute the left-most, right-most, and depth-most nodes for extents. |
---|
6277 | var left = d3_layout_clusterLeft(root), |
---|
6278 | right = d3_layout_clusterRight(root), |
---|
6279 | x0 = left.x - separation(left, right) / 2, |
---|
6280 | x1 = right.x + separation(right, left) / 2; |
---|
6281 | |
---|
6282 | // Second walk, normalizing x & y to the desired size. |
---|
6283 | d3_layout_treeVisitAfter(root, function(node) { |
---|
6284 | node.x = (node.x - x0) / (x1 - x0) * size[0]; |
---|
6285 | node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1]; |
---|
6286 | }); |
---|
6287 | |
---|
6288 | return nodes; |
---|
6289 | } |
---|
6290 | |
---|
6291 | cluster.separation = function(x) { |
---|
6292 | if (!arguments.length) return separation; |
---|
6293 | separation = x; |
---|
6294 | return cluster; |
---|
6295 | }; |
---|
6296 | |
---|
6297 | cluster.size = function(x) { |
---|
6298 | if (!arguments.length) return size; |
---|
6299 | size = x; |
---|
6300 | return cluster; |
---|
6301 | }; |
---|
6302 | |
---|
6303 | return d3_layout_hierarchyRebind(cluster, hierarchy); |
---|
6304 | }; |
---|
6305 | |
---|
6306 | function d3_layout_clusterY(children) { |
---|
6307 | return 1 + d3.max(children, function(child) { |
---|
6308 | return child.y; |
---|
6309 | }); |
---|
6310 | } |
---|
6311 | |
---|
6312 | function d3_layout_clusterX(children) { |
---|
6313 | return children.reduce(function(x, child) { |
---|
6314 | return x + child.x; |
---|
6315 | }, 0) / children.length; |
---|
6316 | } |
---|
6317 | |
---|
6318 | function d3_layout_clusterLeft(node) { |
---|
6319 | var children = node.children; |
---|
6320 | return children && children.length ? d3_layout_clusterLeft(children[0]) : node; |
---|
6321 | } |
---|
6322 | |
---|
6323 | function d3_layout_clusterRight(node) { |
---|
6324 | var children = node.children, n; |
---|
6325 | return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node; |
---|
6326 | } |
---|
6327 | // Node-link tree diagram using the Reingold-Tilford "tidy" algorithm |
---|
6328 | d3.layout.tree = function() { |
---|
6329 | var hierarchy = d3.layout.hierarchy().sort(null).value(null), |
---|
6330 | separation = d3_layout_treeSeparation, |
---|
6331 | size = [1, 1]; // width, height |
---|
6332 | |
---|
6333 | function tree(d, i) { |
---|
6334 | var nodes = hierarchy.call(this, d, i), |
---|
6335 | root = nodes[0]; |
---|
6336 | |
---|
6337 | function firstWalk(node, previousSibling) { |
---|
6338 | var children = node.children, |
---|
6339 | layout = node._tree; |
---|
6340 | if (children && (n = children.length)) { |
---|
6341 | var n, |
---|
6342 | firstChild = children[0], |
---|
6343 | previousChild, |
---|
6344 | ancestor = firstChild, |
---|
6345 | child, |
---|
6346 | i = -1; |
---|
6347 | while (++i < n) { |
---|
6348 | child = children[i]; |
---|
6349 | firstWalk(child, previousChild); |
---|
6350 | ancestor = apportion(child, previousChild, ancestor); |
---|
6351 | previousChild = child; |
---|
6352 | } |
---|
6353 | d3_layout_treeShift(node); |
---|
6354 | var midpoint = .5 * (firstChild._tree.prelim + child._tree.prelim); |
---|
6355 | if (previousSibling) { |
---|
6356 | layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling); |
---|
6357 | layout.mod = layout.prelim - midpoint; |
---|
6358 | } else { |
---|
6359 | layout.prelim = midpoint; |
---|
6360 | } |
---|
6361 | } else { |
---|
6362 | if (previousSibling) { |
---|
6363 | layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling); |
---|
6364 | } |
---|
6365 | } |
---|
6366 | } |
---|
6367 | |
---|
6368 | function secondWalk(node, x) { |
---|
6369 | node.x = node._tree.prelim + x; |
---|
6370 | var children = node.children; |
---|
6371 | if (children && (n = children.length)) { |
---|
6372 | var i = -1, |
---|
6373 | n; |
---|
6374 | x += node._tree.mod; |
---|
6375 | while (++i < n) { |
---|
6376 | secondWalk(children[i], x); |
---|
6377 | } |
---|
6378 | } |
---|
6379 | } |
---|
6380 | |
---|
6381 | function apportion(node, previousSibling, ancestor) { |
---|
6382 | if (previousSibling) { |
---|
6383 | var vip = node, |
---|
6384 | vop = node, |
---|
6385 | vim = previousSibling, |
---|
6386 | vom = node.parent.children[0], |
---|
6387 | sip = vip._tree.mod, |
---|
6388 | sop = vop._tree.mod, |
---|
6389 | sim = vim._tree.mod, |
---|
6390 | som = vom._tree.mod, |
---|
6391 | shift; |
---|
6392 | while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) { |
---|
6393 | vom = d3_layout_treeLeft(vom); |
---|
6394 | vop = d3_layout_treeRight(vop); |
---|
6395 | vop._tree.ancestor = node; |
---|
6396 | shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip); |
---|
6397 | if (shift > 0) { |
---|
6398 | d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift); |
---|
6399 | sip += shift; |
---|
6400 | sop += shift; |
---|
6401 | } |
---|
6402 | sim += vim._tree.mod; |
---|
6403 | sip += vip._tree.mod; |
---|
6404 | som += vom._tree.mod; |
---|
6405 | sop += vop._tree.mod; |
---|
6406 | } |
---|
6407 | if (vim && !d3_layout_treeRight(vop)) { |
---|
6408 | vop._tree.thread = vim; |
---|
6409 | vop._tree.mod += sim - sop; |
---|
6410 | } |
---|
6411 | if (vip && !d3_layout_treeLeft(vom)) { |
---|
6412 | vom._tree.thread = vip; |
---|
6413 | vom._tree.mod += sip - som; |
---|
6414 | ancestor = node; |
---|
6415 | } |
---|
6416 | } |
---|
6417 | return ancestor; |
---|
6418 | } |
---|
6419 | |
---|
6420 | // Initialize temporary layout variables. |
---|
6421 | d3_layout_treeVisitAfter(root, function(node, previousSibling) { |
---|
6422 | node._tree = { |
---|
6423 | ancestor: node, |
---|
6424 | prelim: 0, |
---|
6425 | mod: 0, |
---|
6426 | change: 0, |
---|
6427 | shift: 0, |
---|
6428 | number: previousSibling ? previousSibling._tree.number + 1 : 0 |
---|
6429 | }; |
---|
6430 | }); |
---|
6431 | |
---|
6432 | // Compute the layout using Buchheim et al.'s algorithm. |
---|
6433 | firstWalk(root); |
---|
6434 | secondWalk(root, -root._tree.prelim); |
---|
6435 | |
---|
6436 | // Compute the left-most, right-most, and depth-most nodes for extents. |
---|
6437 | var left = d3_layout_treeSearch(root, d3_layout_treeLeftmost), |
---|
6438 | right = d3_layout_treeSearch(root, d3_layout_treeRightmost), |
---|
6439 | deep = d3_layout_treeSearch(root, d3_layout_treeDeepest), |
---|
6440 | x0 = left.x - separation(left, right) / 2, |
---|
6441 | x1 = right.x + separation(right, left) / 2, |
---|
6442 | y1 = deep.depth || 1; |
---|
6443 | |
---|
6444 | // Clear temporary layout variables; transform x and y. |
---|
6445 | d3_layout_treeVisitAfter(root, function(node) { |
---|
6446 | node.x = (node.x - x0) / (x1 - x0) * size[0]; |
---|
6447 | node.y = node.depth / y1 * size[1]; |
---|
6448 | delete node._tree; |
---|
6449 | }); |
---|
6450 | |
---|
6451 | return nodes; |
---|
6452 | } |
---|
6453 | |
---|
6454 | tree.separation = function(x) { |
---|
6455 | if (!arguments.length) return separation; |
---|
6456 | separation = x; |
---|
6457 | return tree; |
---|
6458 | }; |
---|
6459 | |
---|
6460 | tree.size = function(x) { |
---|
6461 | if (!arguments.length) return size; |
---|
6462 | size = x; |
---|
6463 | return tree; |
---|
6464 | }; |
---|
6465 | |
---|
6466 | return d3_layout_hierarchyRebind(tree, hierarchy); |
---|
6467 | }; |
---|
6468 | |
---|
6469 | function d3_layout_treeSeparation(a, b) { |
---|
6470 | return a.parent == b.parent ? 1 : 2; |
---|
6471 | } |
---|
6472 | |
---|
6473 | // function d3_layout_treeSeparationRadial(a, b) { |
---|
6474 | // return (a.parent == b.parent ? 1 : 2) / a.depth; |
---|
6475 | // } |
---|
6476 | |
---|
6477 | function d3_layout_treeLeft(node) { |
---|
6478 | var children = node.children; |
---|
6479 | return children && children.length ? children[0] : node._tree.thread; |
---|
6480 | } |
---|
6481 | |
---|
6482 | function d3_layout_treeRight(node) { |
---|
6483 | var children = node.children, |
---|
6484 | n; |
---|
6485 | return children && (n = children.length) ? children[n - 1] : node._tree.thread; |
---|
6486 | } |
---|
6487 | |
---|
6488 | function d3_layout_treeSearch(node, compare) { |
---|
6489 | var children = node.children; |
---|
6490 | if (children && (n = children.length)) { |
---|
6491 | var child, |
---|
6492 | n, |
---|
6493 | i = -1; |
---|
6494 | while (++i < n) { |
---|
6495 | if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) { |
---|
6496 | node = child; |
---|
6497 | } |
---|
6498 | } |
---|
6499 | } |
---|
6500 | return node; |
---|
6501 | } |
---|
6502 | |
---|
6503 | function d3_layout_treeRightmost(a, b) { |
---|
6504 | return a.x - b.x; |
---|
6505 | } |
---|
6506 | |
---|
6507 | function d3_layout_treeLeftmost(a, b) { |
---|
6508 | return b.x - a.x; |
---|
6509 | } |
---|
6510 | |
---|
6511 | function d3_layout_treeDeepest(a, b) { |
---|
6512 | return a.depth - b.depth; |
---|
6513 | } |
---|
6514 | |
---|
6515 | function d3_layout_treeVisitAfter(node, callback) { |
---|
6516 | function visit(node, previousSibling) { |
---|
6517 | var children = node.children; |
---|
6518 | if (children && (n = children.length)) { |
---|
6519 | var child, |
---|
6520 | previousChild = null, |
---|
6521 | i = -1, |
---|
6522 | n; |
---|
6523 | while (++i < n) { |
---|
6524 | child = children[i]; |
---|
6525 | visit(child, previousChild); |
---|
6526 | previousChild = child; |
---|
6527 | } |
---|
6528 | } |
---|
6529 | callback(node, previousSibling); |
---|
6530 | } |
---|
6531 | visit(node, null); |
---|
6532 | } |
---|
6533 | |
---|
6534 | function d3_layout_treeShift(node) { |
---|
6535 | var shift = 0, |
---|
6536 | change = 0, |
---|
6537 | children = node.children, |
---|
6538 | i = children.length, |
---|
6539 | child; |
---|
6540 | while (--i >= 0) { |
---|
6541 | child = children[i]._tree; |
---|
6542 | child.prelim += shift; |
---|
6543 | child.mod += shift; |
---|
6544 | shift += child.shift + (change += child.change); |
---|
6545 | } |
---|
6546 | } |
---|
6547 | |
---|
6548 | function d3_layout_treeMove(ancestor, node, shift) { |
---|
6549 | ancestor = ancestor._tree; |
---|
6550 | node = node._tree; |
---|
6551 | var change = shift / (node.number - ancestor.number); |
---|
6552 | ancestor.change += change; |
---|
6553 | node.change -= change; |
---|
6554 | node.shift += shift; |
---|
6555 | node.prelim += shift; |
---|
6556 | node.mod += shift; |
---|
6557 | } |
---|
6558 | |
---|
6559 | function d3_layout_treeAncestor(vim, node, ancestor) { |
---|
6560 | return vim._tree.ancestor.parent == node.parent |
---|
6561 | ? vim._tree.ancestor |
---|
6562 | : ancestor; |
---|
6563 | } |
---|
6564 | // Squarified Treemaps by Mark Bruls, Kees Huizing, and Jarke J. van Wijk |
---|
6565 | // Modified to support a target aspect ratio by Jeff Heer |
---|
6566 | d3.layout.treemap = function() { |
---|
6567 | var hierarchy = d3.layout.hierarchy(), |
---|
6568 | round = Math.round, |
---|
6569 | size = [1, 1], // width, height |
---|
6570 | padding = null, |
---|
6571 | pad = d3_layout_treemapPadNull, |
---|
6572 | sticky = false, |
---|
6573 | stickies, |
---|
6574 | ratio = 0.5 * (1 + Math.sqrt(5)); // golden ratio |
---|
6575 | |
---|
6576 | // Compute the area for each child based on value & scale. |
---|
6577 | function scale(children, k) { |
---|
6578 | var i = -1, |
---|
6579 | n = children.length, |
---|
6580 | child, |
---|
6581 | area; |
---|
6582 | while (++i < n) { |
---|
6583 | area = (child = children[i]).value * (k < 0 ? 0 : k); |
---|
6584 | child.area = isNaN(area) || area <= 0 ? 0 : area; |
---|
6585 | } |
---|
6586 | } |
---|
6587 | |
---|
6588 | // Recursively arranges the specified node's children into squarified rows. |
---|
6589 | function squarify(node) { |
---|
6590 | var children = node.children; |
---|
6591 | if (children && children.length) { |
---|
6592 | var rect = pad(node), |
---|
6593 | row = [], |
---|
6594 | remaining = children.slice(), // copy-on-write |
---|
6595 | child, |
---|
6596 | best = Infinity, // the best row score so far |
---|
6597 | score, // the current row score |
---|
6598 | u = Math.min(rect.dx, rect.dy), // initial orientation |
---|
6599 | n; |
---|
6600 | scale(remaining, rect.dx * rect.dy / node.value); |
---|
6601 | row.area = 0; |
---|
6602 | while ((n = remaining.length) > 0) { |
---|
6603 | row.push(child = remaining[n - 1]); |
---|
6604 | row.area += child.area; |
---|
6605 | if ((score = worst(row, u)) <= best) { // continue with this orientation |
---|
6606 | remaining.pop(); |
---|
6607 | best = score; |
---|
6608 | } else { // abort, and try a different orientation |
---|
6609 | row.area -= row.pop().area; |
---|
6610 | position(row, u, rect, false); |
---|
6611 | u = Math.min(rect.dx, rect.dy); |
---|
6612 | row.length = row.area = 0; |
---|
6613 | best = Infinity; |
---|
6614 | } |
---|
6615 | } |
---|
6616 | if (row.length) { |
---|
6617 | position(row, u, rect, true); |
---|
6618 | row.length = row.area = 0; |
---|
6619 | } |
---|
6620 | children.forEach(squarify); |
---|
6621 | } |
---|
6622 | } |
---|
6623 | |
---|
6624 | // Recursively resizes the specified node's children into existing rows. |
---|
6625 | // Preserves the existing layout! |
---|
6626 | function stickify(node) { |
---|
6627 | var children = node.children; |
---|
6628 | if (children && children.length) { |
---|
6629 | var rect = pad(node), |
---|
6630 | remaining = children.slice(), // copy-on-write |
---|
6631 | child, |
---|
6632 | row = []; |
---|
6633 | scale(remaining, rect.dx * rect.dy / node.value); |
---|
6634 | row.area = 0; |
---|
6635 | while (child = remaining.pop()) { |
---|
6636 | row.push(child); |
---|
6637 | row.area += child.area; |
---|
6638 | if (child.z != null) { |
---|
6639 | position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length); |
---|
6640 | row.length = row.area = 0; |
---|
6641 | } |
---|
6642 | } |
---|
6643 | children.forEach(stickify); |
---|
6644 | } |
---|
6645 | } |
---|
6646 | |
---|
6647 | // Computes the score for the specified row, as the worst aspect ratio. |
---|
6648 | function worst(row, u) { |
---|
6649 | var s = row.area, |
---|
6650 | r, |
---|
6651 | rmax = 0, |
---|
6652 | rmin = Infinity, |
---|
6653 | i = -1, |
---|
6654 | n = row.length; |
---|
6655 | while (++i < n) { |
---|
6656 | if (!(r = row[i].area)) continue; |
---|
6657 | if (r < rmin) rmin = r; |
---|
6658 | if (r > rmax) rmax = r; |
---|
6659 | } |
---|
6660 | s *= s; |
---|
6661 | u *= u; |
---|
6662 | return s |
---|
6663 | ? Math.max((u * rmax * ratio) / s, s / (u * rmin * ratio)) |
---|
6664 | : Infinity; |
---|
6665 | } |
---|
6666 | |
---|
6667 | // Positions the specified row of nodes. Modifies `rect`. |
---|
6668 | function position(row, u, rect, flush) { |
---|
6669 | var i = -1, |
---|
6670 | n = row.length, |
---|
6671 | x = rect.x, |
---|
6672 | y = rect.y, |
---|
6673 | v = u ? round(row.area / u) : 0, |
---|
6674 | o; |
---|
6675 | if (u == rect.dx) { // horizontal subdivision |
---|
6676 | if (flush || v > rect.dy) v = rect.dy; // over+underflow |
---|
6677 | while (++i < n) { |
---|
6678 | o = row[i]; |
---|
6679 | o.x = x; |
---|
6680 | o.y = y; |
---|
6681 | o.dy = v; |
---|
6682 | x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0); |
---|
6683 | } |
---|
6684 | o.z = true; |
---|
6685 | o.dx += rect.x + rect.dx - x; // rounding error |
---|
6686 | rect.y += v; |
---|
6687 | rect.dy -= v; |
---|
6688 | } else { // vertical subdivision |
---|
6689 | if (flush || v > rect.dx) v = rect.dx; // over+underflow |
---|
6690 | while (++i < n) { |
---|
6691 | o = row[i]; |
---|
6692 | o.x = x; |
---|
6693 | o.y = y; |
---|
6694 | o.dx = v; |
---|
6695 | y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0); |
---|
6696 | } |
---|
6697 | o.z = false; |
---|
6698 | o.dy += rect.y + rect.dy - y; // rounding error |
---|
6699 | rect.x += v; |
---|
6700 | rect.dx -= v; |
---|
6701 | } |
---|
6702 | } |
---|
6703 | |
---|
6704 | function treemap(d) { |
---|
6705 | var nodes = stickies || hierarchy(d), |
---|
6706 | root = nodes[0]; |
---|
6707 | root.x = 0; |
---|
6708 | root.y = 0; |
---|
6709 | root.dx = size[0]; |
---|
6710 | root.dy = size[1]; |
---|
6711 | if (stickies) hierarchy.revalue(root); |
---|
6712 | scale([root], root.dx * root.dy / root.value); |
---|
6713 | (stickies ? stickify : squarify)(root); |
---|
6714 | if (sticky) stickies = nodes; |
---|
6715 | return nodes; |
---|
6716 | } |
---|
6717 | |
---|
6718 | treemap.size = function(x) { |
---|
6719 | if (!arguments.length) return size; |
---|
6720 | size = x; |
---|
6721 | return treemap; |
---|
6722 | }; |
---|
6723 | |
---|
6724 | treemap.padding = function(x) { |
---|
6725 | if (!arguments.length) return padding; |
---|
6726 | |
---|
6727 | function padFunction(node) { |
---|
6728 | var p = x.call(treemap, node, node.depth); |
---|
6729 | return p == null |
---|
6730 | ? d3_layout_treemapPadNull(node) |
---|
6731 | : d3_layout_treemapPad(node, typeof p === "number" ? [p, p, p, p] : p); |
---|
6732 | } |
---|
6733 | |
---|
6734 | function padConstant(node) { |
---|
6735 | return d3_layout_treemapPad(node, x); |
---|
6736 | } |
---|
6737 | |
---|
6738 | var type; |
---|
6739 | pad = (padding = x) == null ? d3_layout_treemapPadNull |
---|
6740 | : (type = typeof x) === "function" ? padFunction |
---|
6741 | : type === "number" ? (x = [x, x, x, x], padConstant) |
---|
6742 | : padConstant; |
---|
6743 | return treemap; |
---|
6744 | }; |
---|
6745 | |
---|
6746 | treemap.round = function(x) { |
---|
6747 | if (!arguments.length) return round != Number; |
---|
6748 | round = x ? Math.round : Number; |
---|
6749 | return treemap; |
---|
6750 | }; |
---|
6751 | |
---|
6752 | treemap.sticky = function(x) { |
---|
6753 | if (!arguments.length) return sticky; |
---|
6754 | sticky = x; |
---|
6755 | stickies = null; |
---|
6756 | return treemap; |
---|
6757 | }; |
---|
6758 | |
---|
6759 | treemap.ratio = function(x) { |
---|
6760 | if (!arguments.length) return ratio; |
---|
6761 | ratio = x; |
---|
6762 | return treemap; |
---|
6763 | }; |
---|
6764 | |
---|
6765 | return d3_layout_hierarchyRebind(treemap, hierarchy); |
---|
6766 | }; |
---|
6767 | |
---|
6768 | function d3_layout_treemapPadNull(node) { |
---|
6769 | return {x: node.x, y: node.y, dx: node.dx, dy: node.dy}; |
---|
6770 | } |
---|
6771 | |
---|
6772 | function d3_layout_treemapPad(node, padding) { |
---|
6773 | var x = node.x + padding[3], |
---|
6774 | y = node.y + padding[0], |
---|
6775 | dx = node.dx - padding[1] - padding[3], |
---|
6776 | dy = node.dy - padding[0] - padding[2]; |
---|
6777 | if (dx < 0) { x += dx / 2; dx = 0; } |
---|
6778 | if (dy < 0) { y += dy / 2; dy = 0; } |
---|
6779 | return {x: x, y: y, dx: dx, dy: dy}; |
---|
6780 | } |
---|
6781 | d3.csv = function(url, callback) { |
---|
6782 | d3.text(url, "text/csv", function(text) { |
---|
6783 | callback(text && d3.csv.parse(text)); |
---|
6784 | }); |
---|
6785 | }; |
---|
6786 | d3.csv.parse = function(text) { |
---|
6787 | var header; |
---|
6788 | return d3.csv.parseRows(text, function(row, i) { |
---|
6789 | if (i) { |
---|
6790 | var o = {}, j = -1, m = header.length; |
---|
6791 | while (++j < m) o[header[j]] = row[j]; |
---|
6792 | return o; |
---|
6793 | } else { |
---|
6794 | header = row; |
---|
6795 | return null; |
---|
6796 | } |
---|
6797 | }); |
---|
6798 | }; |
---|
6799 | |
---|
6800 | d3.csv.parseRows = function(text, f) { |
---|
6801 | var EOL = {}, // sentinel value for end-of-line |
---|
6802 | EOF = {}, // sentinel value for end-of-file |
---|
6803 | rows = [], // output rows |
---|
6804 | re = /\r\n|[,\r\n]/g, // field separator regex |
---|
6805 | n = 0, // the current line number |
---|
6806 | t, // the current token |
---|
6807 | eol; // is the current token followed by EOL? |
---|
6808 | |
---|
6809 | re.lastIndex = 0; // work-around bug in FF 3.6 |
---|
6810 | |
---|
6811 | /** @private Returns the next token. */ |
---|
6812 | function token() { |
---|
6813 | if (re.lastIndex >= text.length) return EOF; // special case: end of file |
---|
6814 | if (eol) { eol = false; return EOL; } // special case: end of line |
---|
6815 | |
---|
6816 | // special case: quotes |
---|
6817 | var j = re.lastIndex; |
---|
6818 | if (text.charCodeAt(j) === 34) { |
---|
6819 | var i = j; |
---|
6820 | while (i++ < text.length) { |
---|
6821 | if (text.charCodeAt(i) === 34) { |
---|
6822 | if (text.charCodeAt(i + 1) !== 34) break; |
---|
6823 | i++; |
---|
6824 | } |
---|
6825 | } |
---|
6826 | re.lastIndex = i + 2; |
---|
6827 | var c = text.charCodeAt(i + 1); |
---|
6828 | if (c === 13) { |
---|
6829 | eol = true; |
---|
6830 | if (text.charCodeAt(i + 2) === 10) re.lastIndex++; |
---|
6831 | } else if (c === 10) { |
---|
6832 | eol = true; |
---|
6833 | } |
---|
6834 | return text.substring(j + 1, i).replace(/""/g, "\""); |
---|
6835 | } |
---|
6836 | |
---|
6837 | // common case |
---|
6838 | var m = re.exec(text); |
---|
6839 | if (m) { |
---|
6840 | eol = m[0].charCodeAt(0) !== 44; |
---|
6841 | return text.substring(j, m.index); |
---|
6842 | } |
---|
6843 | re.lastIndex = text.length; |
---|
6844 | return text.substring(j); |
---|
6845 | } |
---|
6846 | |
---|
6847 | while ((t = token()) !== EOF) { |
---|
6848 | var a = []; |
---|
6849 | while ((t !== EOL) && (t !== EOF)) { |
---|
6850 | a.push(t); |
---|
6851 | t = token(); |
---|
6852 | } |
---|
6853 | if (f && !(a = f(a, n++))) continue; |
---|
6854 | rows.push(a); |
---|
6855 | } |
---|
6856 | |
---|
6857 | return rows; |
---|
6858 | }; |
---|
6859 | d3.csv.format = function(rows) { |
---|
6860 | return rows.map(d3_csv_formatRow).join("\n"); |
---|
6861 | }; |
---|
6862 | |
---|
6863 | function d3_csv_formatRow(row) { |
---|
6864 | return row.map(d3_csv_formatValue).join(","); |
---|
6865 | } |
---|
6866 | |
---|
6867 | function d3_csv_formatValue(text) { |
---|
6868 | return /[",\n]/.test(text) |
---|
6869 | ? "\"" + text.replace(/\"/g, "\"\"") + "\"" |
---|
6870 | : text; |
---|
6871 | } |
---|
6872 | d3.geo = {}; |
---|
6873 | |
---|
6874 | var d3_geo_radians = Math.PI / 180; |
---|
6875 | // TODO clip input coordinates on opposite hemisphere |
---|
6876 | d3.geo.azimuthal = function() { |
---|
6877 | var mode = "orthographic", // or stereographic, gnomonic, equidistant or equalarea |
---|
6878 | origin, |
---|
6879 | scale = 200, |
---|
6880 | translate = [480, 250], |
---|
6881 | x0, |
---|
6882 | y0, |
---|
6883 | cy0, |
---|
6884 | sy0; |
---|
6885 | |
---|
6886 | function azimuthal(coordinates) { |
---|
6887 | var x1 = coordinates[0] * d3_geo_radians - x0, |
---|
6888 | y1 = coordinates[1] * d3_geo_radians, |
---|
6889 | cx1 = Math.cos(x1), |
---|
6890 | sx1 = Math.sin(x1), |
---|
6891 | cy1 = Math.cos(y1), |
---|
6892 | sy1 = Math.sin(y1), |
---|
6893 | cc = mode !== "orthographic" ? sy0 * sy1 + cy0 * cy1 * cx1 : null, |
---|
6894 | c, |
---|
6895 | k = mode === "stereographic" ? 1 / (1 + cc) |
---|
6896 | : mode === "gnomonic" ? 1 / cc |
---|
6897 | : mode === "equidistant" ? (c = Math.acos(cc), c ? c / Math.sin(c) : 0) |
---|
6898 | : mode === "equalarea" ? Math.sqrt(2 / (1 + cc)) |
---|
6899 | : 1, |
---|
6900 | x = k * cy1 * sx1, |
---|
6901 | y = k * (sy0 * cy1 * cx1 - cy0 * sy1); |
---|
6902 | return [ |
---|
6903 | scale * x + translate[0], |
---|
6904 | scale * y + translate[1] |
---|
6905 | ]; |
---|
6906 | } |
---|
6907 | |
---|
6908 | azimuthal.invert = function(coordinates) { |
---|
6909 | var x = (coordinates[0] - translate[0]) / scale, |
---|
6910 | y = (coordinates[1] - translate[1]) / scale, |
---|
6911 | p = Math.sqrt(x * x + y * y), |
---|
6912 | c = mode === "stereographic" ? 2 * Math.atan(p) |
---|
6913 | : mode === "gnomonic" ? Math.atan(p) |
---|
6914 | : mode === "equidistant" ? p |
---|
6915 | : mode === "equalarea" ? 2 * Math.asin(.5 * p) |
---|
6916 | : Math.asin(p), |
---|
6917 | sc = Math.sin(c), |
---|
6918 | cc = Math.cos(c); |
---|
6919 | return [ |
---|
6920 | (x0 + Math.atan2(x * sc, p * cy0 * cc + y * sy0 * sc)) / d3_geo_radians, |
---|
6921 | Math.asin(cc * sy0 - (p ? (y * sc * cy0) / p : 0)) / d3_geo_radians |
---|
6922 | ]; |
---|
6923 | }; |
---|
6924 | |
---|
6925 | azimuthal.mode = function(x) { |
---|
6926 | if (!arguments.length) return mode; |
---|
6927 | mode = x + ""; |
---|
6928 | return azimuthal; |
---|
6929 | }; |
---|
6930 | |
---|
6931 | azimuthal.origin = function(x) { |
---|
6932 | if (!arguments.length) return origin; |
---|
6933 | origin = x; |
---|
6934 | x0 = origin[0] * d3_geo_radians; |
---|
6935 | y0 = origin[1] * d3_geo_radians; |
---|
6936 | cy0 = Math.cos(y0); |
---|
6937 | sy0 = Math.sin(y0); |
---|
6938 | return azimuthal; |
---|
6939 | }; |
---|
6940 | |
---|
6941 | azimuthal.scale = function(x) { |
---|
6942 | if (!arguments.length) return scale; |
---|
6943 | scale = +x; |
---|
6944 | return azimuthal; |
---|
6945 | }; |
---|
6946 | |
---|
6947 | azimuthal.translate = function(x) { |
---|
6948 | if (!arguments.length) return translate; |
---|
6949 | translate = [+x[0], +x[1]]; |
---|
6950 | return azimuthal; |
---|
6951 | }; |
---|
6952 | |
---|
6953 | return azimuthal.origin([0, 0]); |
---|
6954 | }; |
---|
6955 | // Derived from Tom Carden's Albers implementation for Protovis. |
---|
6956 | // http://gist.github.com/476238 |
---|
6957 | // http://mathworld.wolfram.com/AlbersEqual-AreaConicProjection.html |
---|
6958 | |
---|
6959 | d3.geo.albers = function() { |
---|
6960 | var origin = [-98, 38], |
---|
6961 | parallels = [29.5, 45.5], |
---|
6962 | scale = 1000, |
---|
6963 | translate = [480, 250], |
---|
6964 | lng0, // d3_geo_radians * origin[0] |
---|
6965 | n, |
---|
6966 | C, |
---|
6967 | p0; |
---|
6968 | |
---|
6969 | function albers(coordinates) { |
---|
6970 | var t = n * (d3_geo_radians * coordinates[0] - lng0), |
---|
6971 | p = Math.sqrt(C - 2 * n * Math.sin(d3_geo_radians * coordinates[1])) / n; |
---|
6972 | return [ |
---|
6973 | scale * p * Math.sin(t) + translate[0], |
---|
6974 | scale * (p * Math.cos(t) - p0) + translate[1] |
---|
6975 | ]; |
---|
6976 | } |
---|
6977 | |
---|
6978 | albers.invert = function(coordinates) { |
---|
6979 | var x = (coordinates[0] - translate[0]) / scale, |
---|
6980 | y = (coordinates[1] - translate[1]) / scale, |
---|
6981 | p0y = p0 + y, |
---|
6982 | t = Math.atan2(x, p0y), |
---|
6983 | p = Math.sqrt(x * x + p0y * p0y); |
---|
6984 | return [ |
---|
6985 | (lng0 + t / n) / d3_geo_radians, |
---|
6986 | Math.asin((C - p * p * n * n) / (2 * n)) / d3_geo_radians |
---|
6987 | ]; |
---|
6988 | }; |
---|
6989 | |
---|
6990 | function reload() { |
---|
6991 | var phi1 = d3_geo_radians * parallels[0], |
---|
6992 | phi2 = d3_geo_radians * parallels[1], |
---|
6993 | lat0 = d3_geo_radians * origin[1], |
---|
6994 | s = Math.sin(phi1), |
---|
6995 | c = Math.cos(phi1); |
---|
6996 | lng0 = d3_geo_radians * origin[0]; |
---|
6997 | n = .5 * (s + Math.sin(phi2)); |
---|
6998 | C = c * c + 2 * n * s; |
---|
6999 | p0 = Math.sqrt(C - 2 * n * Math.sin(lat0)) / n; |
---|
7000 | return albers; |
---|
7001 | } |
---|
7002 | |
---|
7003 | albers.origin = function(x) { |
---|
7004 | if (!arguments.length) return origin; |
---|
7005 | origin = [+x[0], +x[1]]; |
---|
7006 | return reload(); |
---|
7007 | }; |
---|
7008 | |
---|
7009 | albers.parallels = function(x) { |
---|
7010 | if (!arguments.length) return parallels; |
---|
7011 | parallels = [+x[0], +x[1]]; |
---|
7012 | return reload(); |
---|
7013 | }; |
---|
7014 | |
---|
7015 | albers.scale = function(x) { |
---|
7016 | if (!arguments.length) return scale; |
---|
7017 | scale = +x; |
---|
7018 | return albers; |
---|
7019 | }; |
---|
7020 | |
---|
7021 | albers.translate = function(x) { |
---|
7022 | if (!arguments.length) return translate; |
---|
7023 | translate = [+x[0], +x[1]]; |
---|
7024 | return albers; |
---|
7025 | }; |
---|
7026 | |
---|
7027 | return reload(); |
---|
7028 | }; |
---|
7029 | |
---|
7030 | // A composite projection for the United States, 960x500. The set of standard |
---|
7031 | // parallels for each region comes from USGS, which is published here: |
---|
7032 | // http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers |
---|
7033 | // TODO allow the composite projection to be rescaled? |
---|
7034 | d3.geo.albersUsa = function() { |
---|
7035 | var lower48 = d3.geo.albers(); |
---|
7036 | |
---|
7037 | var alaska = d3.geo.albers() |
---|
7038 | .origin([-160, 60]) |
---|
7039 | .parallels([55, 65]); |
---|
7040 | |
---|
7041 | var hawaii = d3.geo.albers() |
---|
7042 | .origin([-160, 20]) |
---|
7043 | .parallels([8, 18]); |
---|
7044 | |
---|
7045 | var puertoRico = d3.geo.albers() |
---|
7046 | .origin([-60, 10]) |
---|
7047 | .parallels([8, 18]); |
---|
7048 | |
---|
7049 | function albersUsa(coordinates) { |
---|
7050 | var lon = coordinates[0], |
---|
7051 | lat = coordinates[1]; |
---|
7052 | return (lat > 50 ? alaska |
---|
7053 | : lon < -140 ? hawaii |
---|
7054 | : lat < 21 ? puertoRico |
---|
7055 | : lower48)(coordinates); |
---|
7056 | } |
---|
7057 | |
---|
7058 | albersUsa.scale = function(x) { |
---|
7059 | if (!arguments.length) return lower48.scale(); |
---|
7060 | lower48.scale(x); |
---|
7061 | alaska.scale(x * .6); |
---|
7062 | hawaii.scale(x); |
---|
7063 | puertoRico.scale(x * 1.5); |
---|
7064 | return albersUsa.translate(lower48.translate()); |
---|
7065 | }; |
---|
7066 | |
---|
7067 | albersUsa.translate = function(x) { |
---|
7068 | if (!arguments.length) return lower48.translate(); |
---|
7069 | var dz = lower48.scale() / 1000, |
---|
7070 | dx = x[0], |
---|
7071 | dy = x[1]; |
---|
7072 | lower48.translate(x); |
---|
7073 | alaska.translate([dx - 400 * dz, dy + 170 * dz]); |
---|
7074 | hawaii.translate([dx - 190 * dz, dy + 200 * dz]); |
---|
7075 | puertoRico.translate([dx + 580 * dz, dy + 430 * dz]); |
---|
7076 | return albersUsa; |
---|
7077 | }; |
---|
7078 | |
---|
7079 | return albersUsa.scale(lower48.scale()); |
---|
7080 | }; |
---|
7081 | d3.geo.bonne = function() { |
---|
7082 | var scale = 200, |
---|
7083 | translate = [480, 250], |
---|
7084 | x0, // origin longitude in radians |
---|
7085 | y0, // origin latitude in radians |
---|
7086 | y1, // parallel latitude in radians |
---|
7087 | c1; // cot(y1) |
---|
7088 | |
---|
7089 | function bonne(coordinates) { |
---|
7090 | var x = coordinates[0] * d3_geo_radians - x0, |
---|
7091 | y = coordinates[1] * d3_geo_radians - y0; |
---|
7092 | if (y1) { |
---|
7093 | var p = c1 + y1 - y, E = x * Math.cos(y) / p; |
---|
7094 | x = p * Math.sin(E); |
---|
7095 | y = p * Math.cos(E) - c1; |
---|
7096 | } else { |
---|
7097 | x *= Math.cos(y); |
---|
7098 | y *= -1; |
---|
7099 | } |
---|
7100 | return [ |
---|
7101 | scale * x + translate[0], |
---|
7102 | scale * y + translate[1] |
---|
7103 | ]; |
---|
7104 | } |
---|
7105 | |
---|
7106 | bonne.invert = function(coordinates) { |
---|
7107 | var x = (coordinates[0] - translate[0]) / scale, |
---|
7108 | y = (coordinates[1] - translate[1]) / scale; |
---|
7109 | if (y1) { |
---|
7110 | var c = c1 + y, p = Math.sqrt(x * x + c * c); |
---|
7111 | y = c1 + y1 - p; |
---|
7112 | x = x0 + p * Math.atan2(x, c) / Math.cos(y); |
---|
7113 | } else { |
---|
7114 | y *= -1; |
---|
7115 | x /= Math.cos(y); |
---|
7116 | } |
---|
7117 | return [ |
---|
7118 | x / d3_geo_radians, |
---|
7119 | y / d3_geo_radians |
---|
7120 | ]; |
---|
7121 | }; |
---|
7122 | |
---|
7123 | // 90° for Werner, 0° for Sinusoidal |
---|
7124 | bonne.parallel = function(x) { |
---|
7125 | if (!arguments.length) return y1 / d3_geo_radians; |
---|
7126 | c1 = 1 / Math.tan(y1 = x * d3_geo_radians); |
---|
7127 | return bonne; |
---|
7128 | }; |
---|
7129 | |
---|
7130 | bonne.origin = function(x) { |
---|
7131 | if (!arguments.length) return [x0 / d3_geo_radians, y0 / d3_geo_radians]; |
---|
7132 | x0 = x[0] * d3_geo_radians; |
---|
7133 | y0 = x[1] * d3_geo_radians; |
---|
7134 | return bonne; |
---|
7135 | }; |
---|
7136 | |
---|
7137 | bonne.scale = function(x) { |
---|
7138 | if (!arguments.length) return scale; |
---|
7139 | scale = +x; |
---|
7140 | return bonne; |
---|
7141 | }; |
---|
7142 | |
---|
7143 | bonne.translate = function(x) { |
---|
7144 | if (!arguments.length) return translate; |
---|
7145 | translate = [+x[0], +x[1]]; |
---|
7146 | return bonne; |
---|
7147 | }; |
---|
7148 | |
---|
7149 | return bonne.origin([0, 0]).parallel(45); |
---|
7150 | }; |
---|
7151 | d3.geo.equirectangular = function() { |
---|
7152 | var scale = 500, |
---|
7153 | translate = [480, 250]; |
---|
7154 | |
---|
7155 | function equirectangular(coordinates) { |
---|
7156 | var x = coordinates[0] / 360, |
---|
7157 | y = -coordinates[1] / 360; |
---|
7158 | return [ |
---|
7159 | scale * x + translate[0], |
---|
7160 | scale * y + translate[1] |
---|
7161 | ]; |
---|
7162 | } |
---|
7163 | |
---|
7164 | equirectangular.invert = function(coordinates) { |
---|
7165 | var x = (coordinates[0] - translate[0]) / scale, |
---|
7166 | y = (coordinates[1] - translate[1]) / scale; |
---|
7167 | return [ |
---|
7168 | 360 * x, |
---|
7169 | -360 * y |
---|
7170 | ]; |
---|
7171 | }; |
---|
7172 | |
---|
7173 | equirectangular.scale = function(x) { |
---|
7174 | if (!arguments.length) return scale; |
---|
7175 | scale = +x; |
---|
7176 | return equirectangular; |
---|
7177 | }; |
---|
7178 | |
---|
7179 | equirectangular.translate = function(x) { |
---|
7180 | if (!arguments.length) return translate; |
---|
7181 | translate = [+x[0], +x[1]]; |
---|
7182 | return equirectangular; |
---|
7183 | }; |
---|
7184 | |
---|
7185 | return equirectangular; |
---|
7186 | }; |
---|
7187 | d3.geo.mercator = function() { |
---|
7188 | var scale = 500, |
---|
7189 | translate = [480, 250]; |
---|
7190 | |
---|
7191 | function mercator(coordinates) { |
---|
7192 | var x = coordinates[0] / 360, |
---|
7193 | y = -(Math.log(Math.tan(Math.PI / 4 + coordinates[1] * d3_geo_radians / 2)) / d3_geo_radians) / 360; |
---|
7194 | return [ |
---|
7195 | scale * x + translate[0], |
---|
7196 | scale * Math.max(-.5, Math.min(.5, y)) + translate[1] |
---|
7197 | ]; |
---|
7198 | } |
---|
7199 | |
---|
7200 | mercator.invert = function(coordinates) { |
---|
7201 | var x = (coordinates[0] - translate[0]) / scale, |
---|
7202 | y = (coordinates[1] - translate[1]) / scale; |
---|
7203 | return [ |
---|
7204 | 360 * x, |
---|
7205 | 2 * Math.atan(Math.exp(-360 * y * d3_geo_radians)) / d3_geo_radians - 90 |
---|
7206 | ]; |
---|
7207 | }; |
---|
7208 | |
---|
7209 | mercator.scale = function(x) { |
---|
7210 | if (!arguments.length) return scale; |
---|
7211 | scale = +x; |
---|
7212 | return mercator; |
---|
7213 | }; |
---|
7214 | |
---|
7215 | mercator.translate = function(x) { |
---|
7216 | if (!arguments.length) return translate; |
---|
7217 | translate = [+x[0], +x[1]]; |
---|
7218 | return mercator; |
---|
7219 | }; |
---|
7220 | |
---|
7221 | return mercator; |
---|
7222 | }; |
---|
7223 | function d3_geo_type(types, defaultValue) { |
---|
7224 | return function(object) { |
---|
7225 | return object && types.hasOwnProperty(object.type) ? types[object.type](object) : defaultValue; |
---|
7226 | }; |
---|
7227 | } |
---|
7228 | /** |
---|
7229 | * Returns a function that, given a GeoJSON object (e.g., a feature), returns |
---|
7230 | * the corresponding SVG path. The function can be customized by overriding the |
---|
7231 | * projection. Point features are mapped to circles with a default radius of |
---|
7232 | * 4.5px; the radius can be specified either as a constant or a function that |
---|
7233 | * is evaluated per object. |
---|
7234 | */ |
---|
7235 | d3.geo.path = function() { |
---|
7236 | var pointRadius = 4.5, |
---|
7237 | pointCircle = d3_path_circle(pointRadius), |
---|
7238 | projection = d3.geo.albersUsa(); |
---|
7239 | |
---|
7240 | function path(d, i) { |
---|
7241 | if (typeof pointRadius === "function") { |
---|
7242 | pointCircle = d3_path_circle(pointRadius.apply(this, arguments)); |
---|
7243 | } |
---|
7244 | return pathType(d) || null; |
---|
7245 | } |
---|
7246 | |
---|
7247 | function project(coordinates) { |
---|
7248 | return projection(coordinates).join(","); |
---|
7249 | } |
---|
7250 | |
---|
7251 | var pathType = d3_geo_type({ |
---|
7252 | |
---|
7253 | FeatureCollection: function(o) { |
---|
7254 | var path = [], |
---|
7255 | features = o.features, |
---|
7256 | i = -1, // features.index |
---|
7257 | n = features.length; |
---|
7258 | while (++i < n) path.push(pathType(features[i].geometry)); |
---|
7259 | return path.join(""); |
---|
7260 | }, |
---|
7261 | |
---|
7262 | Feature: function(o) { |
---|
7263 | return pathType(o.geometry); |
---|
7264 | }, |
---|
7265 | |
---|
7266 | Point: function(o) { |
---|
7267 | return "M" + project(o.coordinates) + pointCircle; |
---|
7268 | }, |
---|
7269 | |
---|
7270 | MultiPoint: function(o) { |
---|
7271 | var path = [], |
---|
7272 | coordinates = o.coordinates, |
---|
7273 | i = -1, // coordinates.index |
---|
7274 | n = coordinates.length; |
---|
7275 | while (++i < n) path.push("M", project(coordinates[i]), pointCircle); |
---|
7276 | return path.join(""); |
---|
7277 | }, |
---|
7278 | |
---|
7279 | LineString: function(o) { |
---|
7280 | var path = ["M"], |
---|
7281 | coordinates = o.coordinates, |
---|
7282 | i = -1, // coordinates.index |
---|
7283 | n = coordinates.length; |
---|
7284 | while (++i < n) path.push(project(coordinates[i]), "L"); |
---|
7285 | path.pop(); |
---|
7286 | return path.join(""); |
---|
7287 | }, |
---|
7288 | |
---|
7289 | MultiLineString: function(o) { |
---|
7290 | var path = [], |
---|
7291 | coordinates = o.coordinates, |
---|
7292 | i = -1, // coordinates.index |
---|
7293 | n = coordinates.length, |
---|
7294 | subcoordinates, // coordinates[i] |
---|
7295 | j, // subcoordinates.index |
---|
7296 | m; // subcoordinates.length |
---|
7297 | while (++i < n) { |
---|
7298 | subcoordinates = coordinates[i]; |
---|
7299 | j = -1; |
---|
7300 | m = subcoordinates.length; |
---|
7301 | path.push("M"); |
---|
7302 | while (++j < m) path.push(project(subcoordinates[j]), "L"); |
---|
7303 | path.pop(); |
---|
7304 | } |
---|
7305 | return path.join(""); |
---|
7306 | }, |
---|
7307 | |
---|
7308 | Polygon: function(o) { |
---|
7309 | var path = [], |
---|
7310 | coordinates = o.coordinates, |
---|
7311 | i = -1, // coordinates.index |
---|
7312 | n = coordinates.length, |
---|
7313 | subcoordinates, // coordinates[i] |
---|
7314 | j, // subcoordinates.index |
---|
7315 | m; // subcoordinates.length |
---|
7316 | while (++i < n) { |
---|
7317 | subcoordinates = coordinates[i]; |
---|
7318 | j = -1; |
---|
7319 | if ((m = subcoordinates.length - 1) > 0) { |
---|
7320 | path.push("M"); |
---|
7321 | while (++j < m) path.push(project(subcoordinates[j]), "L"); |
---|
7322 | path[path.length - 1] = "Z"; |
---|
7323 | } |
---|
7324 | } |
---|
7325 | return path.join(""); |
---|
7326 | }, |
---|
7327 | |
---|
7328 | MultiPolygon: function(o) { |
---|
7329 | var path = [], |
---|
7330 | coordinates = o.coordinates, |
---|
7331 | i = -1, // coordinates index |
---|
7332 | n = coordinates.length, |
---|
7333 | subcoordinates, // coordinates[i] |
---|
7334 | j, // subcoordinates index |
---|
7335 | m, // subcoordinates.length |
---|
7336 | subsubcoordinates, // subcoordinates[j] |
---|
7337 | k, // subsubcoordinates index |
---|
7338 | p; // subsubcoordinates.length |
---|
7339 | while (++i < n) { |
---|
7340 | subcoordinates = coordinates[i]; |
---|
7341 | j = -1; |
---|
7342 | m = subcoordinates.length; |
---|
7343 | while (++j < m) { |
---|
7344 | subsubcoordinates = subcoordinates[j]; |
---|
7345 | k = -1; |
---|
7346 | if ((p = subsubcoordinates.length - 1) > 0) { |
---|
7347 | path.push("M"); |
---|
7348 | while (++k < p) path.push(project(subsubcoordinates[k]), "L"); |
---|
7349 | path[path.length - 1] = "Z"; |
---|
7350 | } |
---|
7351 | } |
---|
7352 | } |
---|
7353 | return path.join(""); |
---|
7354 | }, |
---|
7355 | |
---|
7356 | GeometryCollection: function(o) { |
---|
7357 | var path = [], |
---|
7358 | geometries = o.geometries, |
---|
7359 | i = -1, // geometries index |
---|
7360 | n = geometries.length; |
---|
7361 | while (++i < n) path.push(pathType(geometries[i])); |
---|
7362 | return path.join(""); |
---|
7363 | } |
---|
7364 | |
---|
7365 | }); |
---|
7366 | |
---|
7367 | var areaType = path.area = d3_geo_type({ |
---|
7368 | |
---|
7369 | FeatureCollection: function(o) { |
---|
7370 | var area = 0, |
---|
7371 | features = o.features, |
---|
7372 | i = -1, // features.index |
---|
7373 | n = features.length; |
---|
7374 | while (++i < n) area += areaType(features[i]); |
---|
7375 | return area; |
---|
7376 | }, |
---|
7377 | |
---|
7378 | Feature: function(o) { |
---|
7379 | return areaType(o.geometry); |
---|
7380 | }, |
---|
7381 | |
---|
7382 | Polygon: function(o) { |
---|
7383 | return polygonArea(o.coordinates); |
---|
7384 | }, |
---|
7385 | |
---|
7386 | MultiPolygon: function(o) { |
---|
7387 | var sum = 0, |
---|
7388 | coordinates = o.coordinates, |
---|
7389 | i = -1, // coordinates index |
---|
7390 | n = coordinates.length; |
---|
7391 | while (++i < n) sum += polygonArea(coordinates[i]); |
---|
7392 | return sum; |
---|
7393 | }, |
---|
7394 | |
---|
7395 | GeometryCollection: function(o) { |
---|
7396 | var sum = 0, |
---|
7397 | geometries = o.geometries, |
---|
7398 | i = -1, // geometries index |
---|
7399 | n = geometries.length; |
---|
7400 | while (++i < n) sum += areaType(geometries[i]); |
---|
7401 | return sum; |
---|
7402 | } |
---|
7403 | |
---|
7404 | }, 0); |
---|
7405 | |
---|
7406 | function polygonArea(coordinates) { |
---|
7407 | var sum = area(coordinates[0]), // exterior ring |
---|
7408 | i = 0, // coordinates.index |
---|
7409 | n = coordinates.length; |
---|
7410 | while (++i < n) sum -= area(coordinates[i]); // holes |
---|
7411 | return sum; |
---|
7412 | } |
---|
7413 | |
---|
7414 | function polygonCentroid(coordinates) { |
---|
7415 | var polygon = d3.geom.polygon(coordinates[0].map(projection)), // exterior ring |
---|
7416 | area = polygon.area(), |
---|
7417 | centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1), |
---|
7418 | x = centroid[0], |
---|
7419 | y = centroid[1], |
---|
7420 | z = area, |
---|
7421 | i = 0, // coordinates index |
---|
7422 | n = coordinates.length; |
---|
7423 | while (++i < n) { |
---|
7424 | polygon = d3.geom.polygon(coordinates[i].map(projection)); // holes |
---|
7425 | area = polygon.area(); |
---|
7426 | centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1); |
---|
7427 | x -= centroid[0]; |
---|
7428 | y -= centroid[1]; |
---|
7429 | z -= area; |
---|
7430 | } |
---|
7431 | return [x, y, 6 * z]; // weighted centroid |
---|
7432 | } |
---|
7433 | |
---|
7434 | var centroidType = path.centroid = d3_geo_type({ |
---|
7435 | |
---|
7436 | // TODO FeatureCollection |
---|
7437 | // TODO Point |
---|
7438 | // TODO MultiPoint |
---|
7439 | // TODO LineString |
---|
7440 | // TODO MultiLineString |
---|
7441 | // TODO GeometryCollection |
---|
7442 | |
---|
7443 | Feature: function(o) { |
---|
7444 | return centroidType(o.geometry); |
---|
7445 | }, |
---|
7446 | |
---|
7447 | Polygon: function(o) { |
---|
7448 | var centroid = polygonCentroid(o.coordinates); |
---|
7449 | return [centroid[0] / centroid[2], centroid[1] / centroid[2]]; |
---|
7450 | }, |
---|
7451 | |
---|
7452 | MultiPolygon: function(o) { |
---|
7453 | var area = 0, |
---|
7454 | coordinates = o.coordinates, |
---|
7455 | centroid, |
---|
7456 | x = 0, |
---|
7457 | y = 0, |
---|
7458 | z = 0, |
---|
7459 | i = -1, // coordinates index |
---|
7460 | n = coordinates.length; |
---|
7461 | while (++i < n) { |
---|
7462 | centroid = polygonCentroid(coordinates[i]); |
---|
7463 | x += centroid[0]; |
---|
7464 | y += centroid[1]; |
---|
7465 | z += centroid[2]; |
---|
7466 | } |
---|
7467 | return [x / z, y / z]; |
---|
7468 | } |
---|
7469 | |
---|
7470 | }); |
---|
7471 | |
---|
7472 | function area(coordinates) { |
---|
7473 | return Math.abs(d3.geom.polygon(coordinates.map(projection)).area()); |
---|
7474 | } |
---|
7475 | |
---|
7476 | path.projection = function(x) { |
---|
7477 | projection = x; |
---|
7478 | return path; |
---|
7479 | }; |
---|
7480 | |
---|
7481 | path.pointRadius = function(x) { |
---|
7482 | if (typeof x === "function") pointRadius = x; |
---|
7483 | else { |
---|
7484 | pointRadius = +x; |
---|
7485 | pointCircle = d3_path_circle(pointRadius); |
---|
7486 | } |
---|
7487 | return path; |
---|
7488 | }; |
---|
7489 | |
---|
7490 | return path; |
---|
7491 | }; |
---|
7492 | |
---|
7493 | function d3_path_circle(radius) { |
---|
7494 | return "m0," + radius |
---|
7495 | + "a" + radius + "," + radius + " 0 1,1 0," + (-2 * radius) |
---|
7496 | + "a" + radius + "," + radius + " 0 1,1 0," + (+2 * radius) |
---|
7497 | + "z"; |
---|
7498 | } |
---|
7499 | /** |
---|
7500 | * Given a GeoJSON object, returns the corresponding bounding box. The bounding |
---|
7501 | * box is represented by a two-dimensional array: [[left, bottom], [right, |
---|
7502 | * top]], where left is the minimum longitude, bottom is the minimum latitude, |
---|
7503 | * right is maximum longitude, and top is the maximum latitude. |
---|
7504 | */ |
---|
7505 | d3.geo.bounds = function(feature) { |
---|
7506 | var left = Infinity, |
---|
7507 | bottom = Infinity, |
---|
7508 | right = -Infinity, |
---|
7509 | top = -Infinity; |
---|
7510 | d3_geo_bounds(feature, function(x, y) { |
---|
7511 | if (x < left) left = x; |
---|
7512 | if (x > right) right = x; |
---|
7513 | if (y < bottom) bottom = y; |
---|
7514 | if (y > top) top = y; |
---|
7515 | }); |
---|
7516 | return [[left, bottom], [right, top]]; |
---|
7517 | }; |
---|
7518 | |
---|
7519 | function d3_geo_bounds(o, f) { |
---|
7520 | if (d3_geo_boundsTypes.hasOwnProperty(o.type)) d3_geo_boundsTypes[o.type](o, f); |
---|
7521 | } |
---|
7522 | |
---|
7523 | var d3_geo_boundsTypes = { |
---|
7524 | Feature: d3_geo_boundsFeature, |
---|
7525 | FeatureCollection: d3_geo_boundsFeatureCollection, |
---|
7526 | GeometryCollection: d3_geo_boundsGeometryCollection, |
---|
7527 | LineString: d3_geo_boundsLineString, |
---|
7528 | MultiLineString: d3_geo_boundsMultiLineString, |
---|
7529 | MultiPoint: d3_geo_boundsLineString, |
---|
7530 | MultiPolygon: d3_geo_boundsMultiPolygon, |
---|
7531 | Point: d3_geo_boundsPoint, |
---|
7532 | Polygon: d3_geo_boundsPolygon |
---|
7533 | }; |
---|
7534 | |
---|
7535 | function d3_geo_boundsFeature(o, f) { |
---|
7536 | d3_geo_bounds(o.geometry, f); |
---|
7537 | } |
---|
7538 | |
---|
7539 | function d3_geo_boundsFeatureCollection(o, f) { |
---|
7540 | for (var a = o.features, i = 0, n = a.length; i < n; i++) { |
---|
7541 | d3_geo_bounds(a[i].geometry, f); |
---|
7542 | } |
---|
7543 | } |
---|
7544 | |
---|
7545 | function d3_geo_boundsGeometryCollection(o, f) { |
---|
7546 | for (var a = o.geometries, i = 0, n = a.length; i < n; i++) { |
---|
7547 | d3_geo_bounds(a[i], f); |
---|
7548 | } |
---|
7549 | } |
---|
7550 | |
---|
7551 | function d3_geo_boundsLineString(o, f) { |
---|
7552 | for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) { |
---|
7553 | f.apply(null, a[i]); |
---|
7554 | } |
---|
7555 | } |
---|
7556 | |
---|
7557 | function d3_geo_boundsMultiLineString(o, f) { |
---|
7558 | for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) { |
---|
7559 | for (var b = a[i], j = 0, m = b.length; j < m; j++) { |
---|
7560 | f.apply(null, b[j]); |
---|
7561 | } |
---|
7562 | } |
---|
7563 | } |
---|
7564 | |
---|
7565 | function d3_geo_boundsMultiPolygon(o, f) { |
---|
7566 | for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) { |
---|
7567 | for (var b = a[i][0], j = 0, m = b.length; j < m; j++) { |
---|
7568 | f.apply(null, b[j]); |
---|
7569 | } |
---|
7570 | } |
---|
7571 | } |
---|
7572 | |
---|
7573 | function d3_geo_boundsPoint(o, f) { |
---|
7574 | f.apply(null, o.coordinates); |
---|
7575 | } |
---|
7576 | |
---|
7577 | function d3_geo_boundsPolygon(o, f) { |
---|
7578 | for (var a = o.coordinates[0], i = 0, n = a.length; i < n; i++) { |
---|
7579 | f.apply(null, a[i]); |
---|
7580 | } |
---|
7581 | } |
---|
7582 | // TODO breakAtDateLine? |
---|
7583 | |
---|
7584 | d3.geo.circle = function() { |
---|
7585 | var origin = [0, 0], |
---|
7586 | degrees = 90 - 1e-2, |
---|
7587 | radians = degrees * d3_geo_radians, |
---|
7588 | arc = d3.geo.greatArc().target(Object); |
---|
7589 | |
---|
7590 | function circle() { |
---|
7591 | // TODO render a circle as a Polygon |
---|
7592 | } |
---|
7593 | |
---|
7594 | function visible(point) { |
---|
7595 | return arc.distance(point) < radians; |
---|
7596 | } |
---|
7597 | |
---|
7598 | circle.clip = function(d) { |
---|
7599 | arc.source(typeof origin === "function" ? origin.apply(this, arguments) : origin); |
---|
7600 | return clipType(d); |
---|
7601 | }; |
---|
7602 | |
---|
7603 | var clipType = d3_geo_type({ |
---|
7604 | |
---|
7605 | FeatureCollection: function(o) { |
---|
7606 | var features = o.features.map(clipType).filter(Object); |
---|
7607 | return features && (o = Object.create(o), o.features = features, o); |
---|
7608 | }, |
---|
7609 | |
---|
7610 | Feature: function(o) { |
---|
7611 | var geometry = clipType(o.geometry); |
---|
7612 | return geometry && (o = Object.create(o), o.geometry = geometry, o); |
---|
7613 | }, |
---|
7614 | |
---|
7615 | Point: function(o) { |
---|
7616 | return visible(o.coordinates) && o; |
---|
7617 | }, |
---|
7618 | |
---|
7619 | MultiPoint: function(o) { |
---|
7620 | var coordinates = o.coordinates.filter(visible); |
---|
7621 | return coordinates.length && { |
---|
7622 | type: o.type, |
---|
7623 | coordinates: coordinates |
---|
7624 | }; |
---|
7625 | }, |
---|
7626 | |
---|
7627 | LineString: function(o) { |
---|
7628 | var coordinates = clip(o.coordinates); |
---|
7629 | return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o); |
---|
7630 | }, |
---|
7631 | |
---|
7632 | MultiLineString: function(o) { |
---|
7633 | var coordinates = o.coordinates.map(clip).filter(function(d) { return d.length; }); |
---|
7634 | return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o); |
---|
7635 | }, |
---|
7636 | |
---|
7637 | Polygon: function(o) { |
---|
7638 | var coordinates = o.coordinates.map(clip); |
---|
7639 | return coordinates[0].length && (o = Object.create(o), o.coordinates = coordinates, o); |
---|
7640 | }, |
---|
7641 | |
---|
7642 | MultiPolygon: function(o) { |
---|
7643 | var coordinates = o.coordinates.map(function(d) { return d.map(clip); }).filter(function(d) { return d[0].length; }); |
---|
7644 | return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o); |
---|
7645 | }, |
---|
7646 | |
---|
7647 | GeometryCollection: function(o) { |
---|
7648 | var geometries = o.geometries.map(clipType).filter(Object); |
---|
7649 | return geometries.length && (o = Object.create(o), o.geometries = geometries, o); |
---|
7650 | } |
---|
7651 | |
---|
7652 | }); |
---|
7653 | |
---|
7654 | function clip(coordinates) { |
---|
7655 | var i = -1, |
---|
7656 | n = coordinates.length, |
---|
7657 | clipped = [], |
---|
7658 | p0, |
---|
7659 | p1, |
---|
7660 | p2, |
---|
7661 | d0, |
---|
7662 | d1; |
---|
7663 | |
---|
7664 | while (++i < n) { |
---|
7665 | d1 = arc.distance(p2 = coordinates[i]); |
---|
7666 | if (d1 < radians) { |
---|
7667 | if (p1) clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1))); |
---|
7668 | clipped.push(p2); |
---|
7669 | p0 = p1 = null; |
---|
7670 | } else { |
---|
7671 | p1 = p2; |
---|
7672 | if (!p0 && clipped.length) { |
---|
7673 | clipped.push(d3_geo_greatArcInterpolate(clipped[clipped.length - 1], p1)((radians - d0) / (d1 - d0))); |
---|
7674 | p0 = p1; |
---|
7675 | } |
---|
7676 | } |
---|
7677 | d0 = d1; |
---|
7678 | } |
---|
7679 | |
---|
7680 | if (p1 && clipped.length) { |
---|
7681 | d1 = arc.distance(p2 = clipped[0]); |
---|
7682 | clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1))); |
---|
7683 | } |
---|
7684 | |
---|
7685 | return resample(clipped); |
---|
7686 | } |
---|
7687 | |
---|
7688 | // Resample coordinates, creating great arcs between each. |
---|
7689 | function resample(coordinates) { |
---|
7690 | var i = 0, |
---|
7691 | n = coordinates.length, |
---|
7692 | j, |
---|
7693 | m, |
---|
7694 | resampled = n ? [coordinates[0]] : coordinates, |
---|
7695 | resamples, |
---|
7696 | origin = arc.source(); |
---|
7697 | |
---|
7698 | while (++i < n) { |
---|
7699 | resamples = arc.source(coordinates[i - 1])(coordinates[i]).coordinates; |
---|
7700 | for (j = 0, m = resamples.length; ++j < m;) resampled.push(resamples[j]); |
---|
7701 | } |
---|
7702 | |
---|
7703 | arc.source(origin); |
---|
7704 | return resampled; |
---|
7705 | } |
---|
7706 | |
---|
7707 | circle.origin = function(x) { |
---|
7708 | if (!arguments.length) return origin; |
---|
7709 | origin = x; |
---|
7710 | return circle; |
---|
7711 | }; |
---|
7712 | |
---|
7713 | circle.angle = function(x) { |
---|
7714 | if (!arguments.length) return degrees; |
---|
7715 | radians = (degrees = +x) * d3_geo_radians; |
---|
7716 | return circle; |
---|
7717 | }; |
---|
7718 | |
---|
7719 | // Precision is specified in degrees. |
---|
7720 | circle.precision = function(x) { |
---|
7721 | if (!arguments.length) return arc.precision(); |
---|
7722 | arc.precision(x); |
---|
7723 | return circle; |
---|
7724 | }; |
---|
7725 | |
---|
7726 | return circle; |
---|
7727 | } |
---|
7728 | d3.geo.greatArc = function() { |
---|
7729 | var source = d3_geo_greatArcSource, |
---|
7730 | target = d3_geo_greatArcTarget, |
---|
7731 | precision = 6 * d3_geo_radians; |
---|
7732 | |
---|
7733 | function greatArc() { |
---|
7734 | var a = typeof source === "function" ? source.apply(this, arguments) : source, |
---|
7735 | b = typeof target === "function" ? target.apply(this, arguments) : target, |
---|
7736 | i = d3_geo_greatArcInterpolate(a, b), |
---|
7737 | dt = precision / i.d, |
---|
7738 | t = 0, |
---|
7739 | coordinates = [a]; |
---|
7740 | while ((t += dt) < 1) coordinates.push(i(t)); |
---|
7741 | coordinates.push(b); |
---|
7742 | return { |
---|
7743 | type: "LineString", |
---|
7744 | coordinates: coordinates |
---|
7745 | }; |
---|
7746 | } |
---|
7747 | |
---|
7748 | // Length returned in radians; multiply by radius for distance. |
---|
7749 | greatArc.distance = function() { |
---|
7750 | var a = typeof source === "function" ? source.apply(this, arguments) : source, |
---|
7751 | b = typeof target === "function" ? target.apply(this, arguments) : target; |
---|
7752 | return d3_geo_greatArcInterpolate(a, b).d; |
---|
7753 | }; |
---|
7754 | |
---|
7755 | greatArc.source = function(x) { |
---|
7756 | if (!arguments.length) return source; |
---|
7757 | source = x; |
---|
7758 | return greatArc; |
---|
7759 | }; |
---|
7760 | |
---|
7761 | greatArc.target = function(x) { |
---|
7762 | if (!arguments.length) return target; |
---|
7763 | target = x; |
---|
7764 | return greatArc; |
---|
7765 | }; |
---|
7766 | |
---|
7767 | // Precision is specified in degrees. |
---|
7768 | greatArc.precision = function(x) { |
---|
7769 | if (!arguments.length) return precision / d3_geo_radians; |
---|
7770 | precision = x * d3_geo_radians; |
---|
7771 | return greatArc; |
---|
7772 | }; |
---|
7773 | |
---|
7774 | return greatArc; |
---|
7775 | }; |
---|
7776 | |
---|
7777 | function d3_geo_greatArcSource(d) { |
---|
7778 | return d.source; |
---|
7779 | } |
---|
7780 | |
---|
7781 | function d3_geo_greatArcTarget(d) { |
---|
7782 | return d.target; |
---|
7783 | } |
---|
7784 | |
---|
7785 | function d3_geo_greatArcInterpolate(a, b) { |
---|
7786 | var x0 = a[0] * d3_geo_radians, cx0 = Math.cos(x0), sx0 = Math.sin(x0), |
---|
7787 | y0 = a[1] * d3_geo_radians, cy0 = Math.cos(y0), sy0 = Math.sin(y0), |
---|
7788 | x1 = b[0] * d3_geo_radians, cx1 = Math.cos(x1), sx1 = Math.sin(x1), |
---|
7789 | y1 = b[1] * d3_geo_radians, cy1 = Math.cos(y1), sy1 = Math.sin(y1), |
---|
7790 | d = interpolate.d = Math.acos(Math.max(-1, Math.min(1, sy0 * sy1 + cy0 * cy1 * Math.cos(x1 - x0)))), |
---|
7791 | sd = Math.sin(d); |
---|
7792 | |
---|
7793 | // From http://williams.best.vwh.net/avform.htm#Intermediate |
---|
7794 | function interpolate(t) { |
---|
7795 | var A = Math.sin(d - (t *= d)) / sd, |
---|
7796 | B = Math.sin(t) / sd, |
---|
7797 | x = A * cy0 * cx0 + B * cy1 * cx1, |
---|
7798 | y = A * cy0 * sx0 + B * cy1 * sx1, |
---|
7799 | z = A * sy0 + B * sy1; |
---|
7800 | return [ |
---|
7801 | Math.atan2(y, x) / d3_geo_radians, |
---|
7802 | Math.atan2(z, Math.sqrt(x * x + y * y)) / d3_geo_radians |
---|
7803 | ]; |
---|
7804 | } |
---|
7805 | |
---|
7806 | return interpolate; |
---|
7807 | } |
---|
7808 | d3.geo.greatCircle = d3.geo.circle; |
---|
7809 | d3.geom = {}; |
---|
7810 | /** |
---|
7811 | * Computes a contour for a given input grid function using the <a |
---|
7812 | * href="http://en.wikipedia.org/wiki/Marching_squares">marching |
---|
7813 | * squares</a> algorithm. Returns the contour polygon as an array of points. |
---|
7814 | * |
---|
7815 | * @param grid a two-input function(x, y) that returns true for values |
---|
7816 | * inside the contour and false for values outside the contour. |
---|
7817 | * @param start an optional starting point [x, y] on the grid. |
---|
7818 | * @returns polygon [[x1, y1], [x2, y2], âŠ] |
---|
7819 | */ |
---|
7820 | d3.geom.contour = function(grid, start) { |
---|
7821 | var s = start || d3_geom_contourStart(grid), // starting point |
---|
7822 | c = [], // contour polygon |
---|
7823 | x = s[0], // current x position |
---|
7824 | y = s[1], // current y position |
---|
7825 | dx = 0, // next x direction |
---|
7826 | dy = 0, // next y direction |
---|
7827 | pdx = NaN, // previous x direction |
---|
7828 | pdy = NaN, // previous y direction |
---|
7829 | i = 0; |
---|
7830 | |
---|
7831 | do { |
---|
7832 | // determine marching squares index |
---|
7833 | i = 0; |
---|
7834 | if (grid(x-1, y-1)) i += 1; |
---|
7835 | if (grid(x, y-1)) i += 2; |
---|
7836 | if (grid(x-1, y )) i += 4; |
---|
7837 | if (grid(x, y )) i += 8; |
---|
7838 | |
---|
7839 | // determine next direction |
---|
7840 | if (i === 6) { |
---|
7841 | dx = pdy === -1 ? -1 : 1; |
---|
7842 | dy = 0; |
---|
7843 | } else if (i === 9) { |
---|
7844 | dx = 0; |
---|
7845 | dy = pdx === 1 ? -1 : 1; |
---|
7846 | } else { |
---|
7847 | dx = d3_geom_contourDx[i]; |
---|
7848 | dy = d3_geom_contourDy[i]; |
---|
7849 | } |
---|
7850 | |
---|
7851 | // update contour polygon |
---|
7852 | if (dx != pdx && dy != pdy) { |
---|
7853 | c.push([x, y]); |
---|
7854 | pdx = dx; |
---|
7855 | pdy = dy; |
---|
7856 | } |
---|
7857 | |
---|
7858 | x += dx; |
---|
7859 | y += dy; |
---|
7860 | } while (s[0] != x || s[1] != y); |
---|
7861 | |
---|
7862 | return c; |
---|
7863 | }; |
---|
7864 | |
---|
7865 | // lookup tables for marching directions |
---|
7866 | var d3_geom_contourDx = [1, 0, 1, 1,-1, 0,-1, 1,0, 0,0,0,-1, 0,-1,NaN], |
---|
7867 | d3_geom_contourDy = [0,-1, 0, 0, 0,-1, 0, 0,1,-1,1,1, 0,-1, 0,NaN]; |
---|
7868 | |
---|
7869 | function d3_geom_contourStart(grid) { |
---|
7870 | var x = 0, |
---|
7871 | y = 0; |
---|
7872 | |
---|
7873 | // search for a starting point; begin at origin |
---|
7874 | // and proceed along outward-expanding diagonals |
---|
7875 | while (true) { |
---|
7876 | if (grid(x,y)) { |
---|
7877 | return [x,y]; |
---|
7878 | } |
---|
7879 | if (x === 0) { |
---|
7880 | x = y + 1; |
---|
7881 | y = 0; |
---|
7882 | } else { |
---|
7883 | x = x - 1; |
---|
7884 | y = y + 1; |
---|
7885 | } |
---|
7886 | } |
---|
7887 | } |
---|
7888 | /** |
---|
7889 | * Computes the 2D convex hull of a set of points using Graham's scanning |
---|
7890 | * algorithm. The algorithm has been implemented as described in Cormen, |
---|
7891 | * Leiserson, and Rivest's Introduction to Algorithms. The running time of |
---|
7892 | * this algorithm is O(n log n), where n is the number of input points. |
---|
7893 | * |
---|
7894 | * @param vertices [[x1, y1], [x2, y2], âŠ] |
---|
7895 | * @returns polygon [[x1, y1], [x2, y2], âŠ] |
---|
7896 | */ |
---|
7897 | d3.geom.hull = function(vertices) { |
---|
7898 | if (vertices.length < 3) return []; |
---|
7899 | |
---|
7900 | var len = vertices.length, |
---|
7901 | plen = len - 1, |
---|
7902 | points = [], |
---|
7903 | stack = [], |
---|
7904 | i, j, h = 0, x1, y1, x2, y2, u, v, a, sp; |
---|
7905 | |
---|
7906 | // find the starting ref point: leftmost point with the minimum y coord |
---|
7907 | for (i=1; i<len; ++i) { |
---|
7908 | if (vertices[i][1] < vertices[h][1]) { |
---|
7909 | h = i; |
---|
7910 | } else if (vertices[i][1] == vertices[h][1]) { |
---|
7911 | h = (vertices[i][0] < vertices[h][0] ? i : h); |
---|
7912 | } |
---|
7913 | } |
---|
7914 | |
---|
7915 | // calculate polar angles from ref point and sort |
---|
7916 | for (i=0; i<len; ++i) { |
---|
7917 | if (i === h) continue; |
---|
7918 | y1 = vertices[i][1] - vertices[h][1]; |
---|
7919 | x1 = vertices[i][0] - vertices[h][0]; |
---|
7920 | points.push({angle: Math.atan2(y1, x1), index: i}); |
---|
7921 | } |
---|
7922 | points.sort(function(a, b) { return a.angle - b.angle; }); |
---|
7923 | |
---|
7924 | // toss out duplicate angles |
---|
7925 | a = points[0].angle; |
---|
7926 | v = points[0].index; |
---|
7927 | u = 0; |
---|
7928 | for (i=1; i<plen; ++i) { |
---|
7929 | j = points[i].index; |
---|
7930 | if (a == points[i].angle) { |
---|
7931 | // keep angle for point most distant from the reference |
---|
7932 | x1 = vertices[v][0] - vertices[h][0]; |
---|
7933 | y1 = vertices[v][1] - vertices[h][1]; |
---|
7934 | x2 = vertices[j][0] - vertices[h][0]; |
---|
7935 | y2 = vertices[j][1] - vertices[h][1]; |
---|
7936 | if ((x1*x1 + y1*y1) >= (x2*x2 + y2*y2)) { |
---|
7937 | points[i].index = -1; |
---|
7938 | } else { |
---|
7939 | points[u].index = -1; |
---|
7940 | a = points[i].angle; |
---|
7941 | u = i; |
---|
7942 | v = j; |
---|
7943 | } |
---|
7944 | } else { |
---|
7945 | a = points[i].angle; |
---|
7946 | u = i; |
---|
7947 | v = j; |
---|
7948 | } |
---|
7949 | } |
---|
7950 | |
---|
7951 | // initialize the stack |
---|
7952 | stack.push(h); |
---|
7953 | for (i=0, j=0; i<2; ++j) { |
---|
7954 | if (points[j].index !== -1) { |
---|
7955 | stack.push(points[j].index); |
---|
7956 | i++; |
---|
7957 | } |
---|
7958 | } |
---|
7959 | sp = stack.length; |
---|
7960 | |
---|
7961 | // do graham's scan |
---|
7962 | for (; j<plen; ++j) { |
---|
7963 | if (points[j].index === -1) continue; // skip tossed out points |
---|
7964 | while (!d3_geom_hullCCW(stack[sp-2], stack[sp-1], points[j].index, vertices)) { |
---|
7965 | --sp; |
---|
7966 | } |
---|
7967 | stack[sp++] = points[j].index; |
---|
7968 | } |
---|
7969 | |
---|
7970 | // construct the hull |
---|
7971 | var poly = []; |
---|
7972 | for (i=0; i<sp; ++i) { |
---|
7973 | poly.push(vertices[stack[i]]); |
---|
7974 | } |
---|
7975 | return poly; |
---|
7976 | } |
---|
7977 | |
---|
7978 | // are three points in counter-clockwise order? |
---|
7979 | function d3_geom_hullCCW(i1, i2, i3, v) { |
---|
7980 | var t, a, b, c, d, e, f; |
---|
7981 | t = v[i1]; a = t[0]; b = t[1]; |
---|
7982 | t = v[i2]; c = t[0]; d = t[1]; |
---|
7983 | t = v[i3]; e = t[0]; f = t[1]; |
---|
7984 | return ((f-b)*(c-a) - (d-b)*(e-a)) > 0; |
---|
7985 | } |
---|
7986 | // Note: requires coordinates to be counterclockwise and convex! |
---|
7987 | d3.geom.polygon = function(coordinates) { |
---|
7988 | |
---|
7989 | coordinates.area = function() { |
---|
7990 | var i = 0, |
---|
7991 | n = coordinates.length, |
---|
7992 | a = coordinates[n - 1][0] * coordinates[0][1], |
---|
7993 | b = coordinates[n - 1][1] * coordinates[0][0]; |
---|
7994 | while (++i < n) { |
---|
7995 | a += coordinates[i - 1][0] * coordinates[i][1]; |
---|
7996 | b += coordinates[i - 1][1] * coordinates[i][0]; |
---|
7997 | } |
---|
7998 | return (b - a) * .5; |
---|
7999 | }; |
---|
8000 | |
---|
8001 | coordinates.centroid = function(k) { |
---|
8002 | var i = -1, |
---|
8003 | n = coordinates.length, |
---|
8004 | x = 0, |
---|
8005 | y = 0, |
---|
8006 | a, |
---|
8007 | b = coordinates[n - 1], |
---|
8008 | c; |
---|
8009 | if (!arguments.length) k = -1 / (6 * coordinates.area()); |
---|
8010 | while (++i < n) { |
---|
8011 | a = b; |
---|
8012 | b = coordinates[i]; |
---|
8013 | c = a[0] * b[1] - b[0] * a[1]; |
---|
8014 | x += (a[0] + b[0]) * c; |
---|
8015 | y += (a[1] + b[1]) * c; |
---|
8016 | } |
---|
8017 | return [x * k, y * k]; |
---|
8018 | }; |
---|
8019 | |
---|
8020 | // The Sutherland-Hodgman clipping algorithm. |
---|
8021 | coordinates.clip = function(subject) { |
---|
8022 | var input, |
---|
8023 | i = -1, |
---|
8024 | n = coordinates.length, |
---|
8025 | j, |
---|
8026 | m, |
---|
8027 | a = coordinates[n - 1], |
---|
8028 | b, |
---|
8029 | c, |
---|
8030 | d; |
---|
8031 | while (++i < n) { |
---|
8032 | input = subject.slice(); |
---|
8033 | subject.length = 0; |
---|
8034 | b = coordinates[i]; |
---|
8035 | c = input[(m = input.length) - 1]; |
---|
8036 | j = -1; |
---|
8037 | while (++j < m) { |
---|
8038 | d = input[j]; |
---|
8039 | if (d3_geom_polygonInside(d, a, b)) { |
---|
8040 | if (!d3_geom_polygonInside(c, a, b)) { |
---|
8041 | subject.push(d3_geom_polygonIntersect(c, d, a, b)); |
---|
8042 | } |
---|
8043 | subject.push(d); |
---|
8044 | } else if (d3_geom_polygonInside(c, a, b)) { |
---|
8045 | subject.push(d3_geom_polygonIntersect(c, d, a, b)); |
---|
8046 | } |
---|
8047 | c = d; |
---|
8048 | } |
---|
8049 | a = b; |
---|
8050 | } |
---|
8051 | return subject; |
---|
8052 | }; |
---|
8053 | |
---|
8054 | return coordinates; |
---|
8055 | }; |
---|
8056 | |
---|
8057 | function d3_geom_polygonInside(p, a, b) { |
---|
8058 | return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]); |
---|
8059 | } |
---|
8060 | |
---|
8061 | // Intersect two infinite lines cd and ab. |
---|
8062 | function d3_geom_polygonIntersect(c, d, a, b) { |
---|
8063 | var x1 = c[0], x2 = d[0], x3 = a[0], x4 = b[0], |
---|
8064 | y1 = c[1], y2 = d[1], y3 = a[1], y4 = b[1], |
---|
8065 | x13 = x1 - x3, |
---|
8066 | x21 = x2 - x1, |
---|
8067 | x43 = x4 - x3, |
---|
8068 | y13 = y1 - y3, |
---|
8069 | y21 = y2 - y1, |
---|
8070 | y43 = y4 - y3, |
---|
8071 | ua = (x43 * y13 - y43 * x13) / (y43 * x21 - x43 * y21); |
---|
8072 | return [x1 + ua * x21, y1 + ua * y21]; |
---|
8073 | } |
---|
8074 | // Adapted from Nicolas Garcia Belmonte's JIT implementation: |
---|
8075 | // http://blog.thejit.org/2010/02/12/voronoi-tessellation/ |
---|
8076 | // http://blog.thejit.org/assets/voronoijs/voronoi.js |
---|
8077 | // See lib/jit/LICENSE for details. |
---|
8078 | |
---|
8079 | // Notes: |
---|
8080 | // |
---|
8081 | // This implementation does not clip the returned polygons, so if you want to |
---|
8082 | // clip them to a particular shape you will need to do that either in SVG or by |
---|
8083 | // post-processing with d3.geom.polygon's clip method. |
---|
8084 | // |
---|
8085 | // If any vertices are coincident or have NaN positions, the behavior of this |
---|
8086 | // method is undefined. Most likely invalid polygons will be returned. You |
---|
8087 | // should filter invalid points, and consolidate coincident points, before |
---|
8088 | // computing the tessellation. |
---|
8089 | |
---|
8090 | /** |
---|
8091 | * @param vertices [[x1, y1], [x2, y2], âŠ] |
---|
8092 | * @returns polygons [[[x1, y1], [x2, y2], âŠ], âŠ] |
---|
8093 | */ |
---|
8094 | d3.geom.voronoi = function(vertices) { |
---|
8095 | var polygons = vertices.map(function() { return []; }); |
---|
8096 | |
---|
8097 | d3_voronoi_tessellate(vertices, function(e) { |
---|
8098 | var s1, |
---|
8099 | s2, |
---|
8100 | x1, |
---|
8101 | x2, |
---|
8102 | y1, |
---|
8103 | y2; |
---|
8104 | if (e.a === 1 && e.b >= 0) { |
---|
8105 | s1 = e.ep.r; |
---|
8106 | s2 = e.ep.l; |
---|
8107 | } else { |
---|
8108 | s1 = e.ep.l; |
---|
8109 | s2 = e.ep.r; |
---|
8110 | } |
---|
8111 | if (e.a === 1) { |
---|
8112 | y1 = s1 ? s1.y : -1e6; |
---|
8113 | x1 = e.c - e.b * y1; |
---|
8114 | y2 = s2 ? s2.y : 1e6; |
---|
8115 | x2 = e.c - e.b * y2; |
---|
8116 | } else { |
---|
8117 | x1 = s1 ? s1.x : -1e6; |
---|
8118 | y1 = e.c - e.a * x1; |
---|
8119 | x2 = s2 ? s2.x : 1e6; |
---|
8120 | y2 = e.c - e.a * x2; |
---|
8121 | } |
---|
8122 | var v1 = [x1, y1], |
---|
8123 | v2 = [x2, y2]; |
---|
8124 | polygons[e.region.l.index].push(v1, v2); |
---|
8125 | polygons[e.region.r.index].push(v1, v2); |
---|
8126 | }); |
---|
8127 | |
---|
8128 | // Reconnect the polygon segments into counterclockwise loops. |
---|
8129 | return polygons.map(function(polygon, i) { |
---|
8130 | var cx = vertices[i][0], |
---|
8131 | cy = vertices[i][1]; |
---|
8132 | polygon.forEach(function(v) { |
---|
8133 | v.angle = Math.atan2(v[0] - cx, v[1] - cy); |
---|
8134 | }); |
---|
8135 | return polygon.sort(function(a, b) { |
---|
8136 | return a.angle - b.angle; |
---|
8137 | }).filter(function(d, i) { |
---|
8138 | return !i || (d.angle - polygon[i - 1].angle > 1e-10); |
---|
8139 | }); |
---|
8140 | }); |
---|
8141 | }; |
---|
8142 | |
---|
8143 | var d3_voronoi_opposite = {"l": "r", "r": "l"}; |
---|
8144 | |
---|
8145 | function d3_voronoi_tessellate(vertices, callback) { |
---|
8146 | |
---|
8147 | var Sites = { |
---|
8148 | list: vertices |
---|
8149 | .map(function(v, i) { |
---|
8150 | return { |
---|
8151 | index: i, |
---|
8152 | x: v[0], |
---|
8153 | y: v[1] |
---|
8154 | }; |
---|
8155 | }) |
---|
8156 | .sort(function(a, b) { |
---|
8157 | return a.y < b.y ? -1 |
---|
8158 | : a.y > b.y ? 1 |
---|
8159 | : a.x < b.x ? -1 |
---|
8160 | : a.x > b.x ? 1 |
---|
8161 | : 0; |
---|
8162 | }), |
---|
8163 | bottomSite: null |
---|
8164 | }; |
---|
8165 | |
---|
8166 | var EdgeList = { |
---|
8167 | list: [], |
---|
8168 | leftEnd: null, |
---|
8169 | rightEnd: null, |
---|
8170 | |
---|
8171 | init: function() { |
---|
8172 | EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l"); |
---|
8173 | EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l"); |
---|
8174 | EdgeList.leftEnd.r = EdgeList.rightEnd; |
---|
8175 | EdgeList.rightEnd.l = EdgeList.leftEnd; |
---|
8176 | EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd); |
---|
8177 | }, |
---|
8178 | |
---|
8179 | createHalfEdge: function(edge, side) { |
---|
8180 | return { |
---|
8181 | edge: edge, |
---|
8182 | side: side, |
---|
8183 | vertex: null, |
---|
8184 | "l": null, |
---|
8185 | "r": null |
---|
8186 | }; |
---|
8187 | }, |
---|
8188 | |
---|
8189 | insert: function(lb, he) { |
---|
8190 | he.l = lb; |
---|
8191 | he.r = lb.r; |
---|
8192 | lb.r.l = he; |
---|
8193 | lb.r = he; |
---|
8194 | }, |
---|
8195 | |
---|
8196 | leftBound: function(p) { |
---|
8197 | var he = EdgeList.leftEnd; |
---|
8198 | do { |
---|
8199 | he = he.r; |
---|
8200 | } while (he != EdgeList.rightEnd && Geom.rightOf(he, p)); |
---|
8201 | he = he.l; |
---|
8202 | return he; |
---|
8203 | }, |
---|
8204 | |
---|
8205 | del: function(he) { |
---|
8206 | he.l.r = he.r; |
---|
8207 | he.r.l = he.l; |
---|
8208 | he.edge = null; |
---|
8209 | }, |
---|
8210 | |
---|
8211 | right: function(he) { |
---|
8212 | return he.r; |
---|
8213 | }, |
---|
8214 | |
---|
8215 | left: function(he) { |
---|
8216 | return he.l; |
---|
8217 | }, |
---|
8218 | |
---|
8219 | leftRegion: function(he) { |
---|
8220 | return he.edge == null |
---|
8221 | ? Sites.bottomSite |
---|
8222 | : he.edge.region[he.side]; |
---|
8223 | }, |
---|
8224 | |
---|
8225 | rightRegion: function(he) { |
---|
8226 | return he.edge == null |
---|
8227 | ? Sites.bottomSite |
---|
8228 | : he.edge.region[d3_voronoi_opposite[he.side]]; |
---|
8229 | } |
---|
8230 | }; |
---|
8231 | |
---|
8232 | var Geom = { |
---|
8233 | |
---|
8234 | bisect: function(s1, s2) { |
---|
8235 | var newEdge = { |
---|
8236 | region: {"l": s1, "r": s2}, |
---|
8237 | ep: {"l": null, "r": null} |
---|
8238 | }; |
---|
8239 | |
---|
8240 | var dx = s2.x - s1.x, |
---|
8241 | dy = s2.y - s1.y, |
---|
8242 | adx = dx > 0 ? dx : -dx, |
---|
8243 | ady = dy > 0 ? dy : -dy; |
---|
8244 | |
---|
8245 | newEdge.c = s1.x * dx + s1.y * dy |
---|
8246 | + (dx * dx + dy * dy) * .5; |
---|
8247 | |
---|
8248 | if (adx > ady) { |
---|
8249 | newEdge.a = 1; |
---|
8250 | newEdge.b = dy / dx; |
---|
8251 | newEdge.c /= dx; |
---|
8252 | } else { |
---|
8253 | newEdge.b = 1; |
---|
8254 | newEdge.a = dx / dy; |
---|
8255 | newEdge.c /= dy; |
---|
8256 | } |
---|
8257 | |
---|
8258 | return newEdge; |
---|
8259 | }, |
---|
8260 | |
---|
8261 | intersect: function(el1, el2) { |
---|
8262 | var e1 = el1.edge, |
---|
8263 | e2 = el2.edge; |
---|
8264 | if (!e1 || !e2 || (e1.region.r == e2.region.r)) { |
---|
8265 | return null; |
---|
8266 | } |
---|
8267 | var d = (e1.a * e2.b) - (e1.b * e2.a); |
---|
8268 | if (Math.abs(d) < 1e-10) { |
---|
8269 | return null; |
---|
8270 | } |
---|
8271 | var xint = (e1.c * e2.b - e2.c * e1.b) / d, |
---|
8272 | yint = (e2.c * e1.a - e1.c * e2.a) / d, |
---|
8273 | e1r = e1.region.r, |
---|
8274 | e2r = e2.region.r, |
---|
8275 | el, |
---|
8276 | e; |
---|
8277 | if ((e1r.y < e2r.y) || |
---|
8278 | (e1r.y == e2r.y && e1r.x < e2r.x)) { |
---|
8279 | el = el1; |
---|
8280 | e = e1; |
---|
8281 | } else { |
---|
8282 | el = el2; |
---|
8283 | e = e2; |
---|
8284 | } |
---|
8285 | var rightOfSite = (xint >= e.region.r.x); |
---|
8286 | if ((rightOfSite && (el.side === "l")) || |
---|
8287 | (!rightOfSite && (el.side === "r"))) { |
---|
8288 | return null; |
---|
8289 | } |
---|
8290 | return { |
---|
8291 | x: xint, |
---|
8292 | y: yint |
---|
8293 | }; |
---|
8294 | }, |
---|
8295 | |
---|
8296 | rightOf: function(he, p) { |
---|
8297 | var e = he.edge, |
---|
8298 | topsite = e.region.r, |
---|
8299 | rightOfSite = (p.x > topsite.x); |
---|
8300 | |
---|
8301 | if (rightOfSite && (he.side === "l")) { |
---|
8302 | return 1; |
---|
8303 | } |
---|
8304 | if (!rightOfSite && (he.side === "r")) { |
---|
8305 | return 0; |
---|
8306 | } |
---|
8307 | if (e.a === 1) { |
---|
8308 | var dyp = p.y - topsite.y, |
---|
8309 | dxp = p.x - topsite.x, |
---|
8310 | fast = 0, |
---|
8311 | above = 0; |
---|
8312 | |
---|
8313 | if ((!rightOfSite && (e.b < 0)) || |
---|
8314 | (rightOfSite && (e.b >= 0))) { |
---|
8315 | above = fast = (dyp >= e.b * dxp); |
---|
8316 | } else { |
---|
8317 | above = ((p.x + p.y * e.b) > e.c); |
---|
8318 | if (e.b < 0) { |
---|
8319 | above = !above; |
---|
8320 | } |
---|
8321 | if (!above) { |
---|
8322 | fast = 1; |
---|
8323 | } |
---|
8324 | } |
---|
8325 | if (!fast) { |
---|
8326 | var dxs = topsite.x - e.region.l.x; |
---|
8327 | above = (e.b * (dxp * dxp - dyp * dyp)) < |
---|
8328 | (dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b)); |
---|
8329 | |
---|
8330 | if (e.b < 0) { |
---|
8331 | above = !above; |
---|
8332 | } |
---|
8333 | } |
---|
8334 | } else /* e.b == 1 */ { |
---|
8335 | var yl = e.c - e.a * p.x, |
---|
8336 | t1 = p.y - yl, |
---|
8337 | t2 = p.x - topsite.x, |
---|
8338 | t3 = yl - topsite.y; |
---|
8339 | |
---|
8340 | above = (t1 * t1) > (t2 * t2 + t3 * t3); |
---|
8341 | } |
---|
8342 | return he.side === "l" ? above : !above; |
---|
8343 | }, |
---|
8344 | |
---|
8345 | endPoint: function(edge, side, site) { |
---|
8346 | edge.ep[side] = site; |
---|
8347 | if (!edge.ep[d3_voronoi_opposite[side]]) return; |
---|
8348 | callback(edge); |
---|
8349 | }, |
---|
8350 | |
---|
8351 | distance: function(s, t) { |
---|
8352 | var dx = s.x - t.x, |
---|
8353 | dy = s.y - t.y; |
---|
8354 | return Math.sqrt(dx * dx + dy * dy); |
---|
8355 | } |
---|
8356 | }; |
---|
8357 | |
---|
8358 | var EventQueue = { |
---|
8359 | list: [], |
---|
8360 | |
---|
8361 | insert: function(he, site, offset) { |
---|
8362 | he.vertex = site; |
---|
8363 | he.ystar = site.y + offset; |
---|
8364 | for (var i=0, list=EventQueue.list, l=list.length; i<l; i++) { |
---|
8365 | var next = list[i]; |
---|
8366 | if (he.ystar > next.ystar || |
---|
8367 | (he.ystar == next.ystar && |
---|
8368 | site.x > next.vertex.x)) { |
---|
8369 | continue; |
---|
8370 | } else { |
---|
8371 | break; |
---|
8372 | } |
---|
8373 | } |
---|
8374 | list.splice(i, 0, he); |
---|
8375 | }, |
---|
8376 | |
---|
8377 | del: function(he) { |
---|
8378 | for (var i=0, ls=EventQueue.list, l=ls.length; i<l && (ls[i] != he); ++i) {} |
---|
8379 | ls.splice(i, 1); |
---|
8380 | }, |
---|
8381 | |
---|
8382 | empty: function() { return EventQueue.list.length === 0; }, |
---|
8383 | |
---|
8384 | nextEvent: function(he) { |
---|
8385 | for (var i=0, ls=EventQueue.list, l=ls.length; i<l; ++i) { |
---|
8386 | if (ls[i] == he) return ls[i+1]; |
---|
8387 | } |
---|
8388 | return null; |
---|
8389 | }, |
---|
8390 | |
---|
8391 | min: function() { |
---|
8392 | var elem = EventQueue.list[0]; |
---|
8393 | return { |
---|
8394 | x: elem.vertex.x, |
---|
8395 | y: elem.ystar |
---|
8396 | }; |
---|
8397 | }, |
---|
8398 | |
---|
8399 | extractMin: function() { |
---|
8400 | return EventQueue.list.shift(); |
---|
8401 | } |
---|
8402 | }; |
---|
8403 | |
---|
8404 | EdgeList.init(); |
---|
8405 | Sites.bottomSite = Sites.list.shift(); |
---|
8406 | |
---|
8407 | var newSite = Sites.list.shift(), newIntStar; |
---|
8408 | var lbnd, rbnd, llbnd, rrbnd, bisector; |
---|
8409 | var bot, top, temp, p, v; |
---|
8410 | var e, pm; |
---|
8411 | |
---|
8412 | while (true) { |
---|
8413 | if (!EventQueue.empty()) { |
---|
8414 | newIntStar = EventQueue.min(); |
---|
8415 | } |
---|
8416 | if (newSite && (EventQueue.empty() |
---|
8417 | || newSite.y < newIntStar.y |
---|
8418 | || (newSite.y == newIntStar.y |
---|
8419 | && newSite.x < newIntStar.x))) { //new site is smallest |
---|
8420 | lbnd = EdgeList.leftBound(newSite); |
---|
8421 | rbnd = EdgeList.right(lbnd); |
---|
8422 | bot = EdgeList.rightRegion(lbnd); |
---|
8423 | e = Geom.bisect(bot, newSite); |
---|
8424 | bisector = EdgeList.createHalfEdge(e, "l"); |
---|
8425 | EdgeList.insert(lbnd, bisector); |
---|
8426 | p = Geom.intersect(lbnd, bisector); |
---|
8427 | if (p) { |
---|
8428 | EventQueue.del(lbnd); |
---|
8429 | EventQueue.insert(lbnd, p, Geom.distance(p, newSite)); |
---|
8430 | } |
---|
8431 | lbnd = bisector; |
---|
8432 | bisector = EdgeList.createHalfEdge(e, "r"); |
---|
8433 | EdgeList.insert(lbnd, bisector); |
---|
8434 | p = Geom.intersect(bisector, rbnd); |
---|
8435 | if (p) { |
---|
8436 | EventQueue.insert(bisector, p, Geom.distance(p, newSite)); |
---|
8437 | } |
---|
8438 | newSite = Sites.list.shift(); |
---|
8439 | } else if (!EventQueue.empty()) { //intersection is smallest |
---|
8440 | lbnd = EventQueue.extractMin(); |
---|
8441 | llbnd = EdgeList.left(lbnd); |
---|
8442 | rbnd = EdgeList.right(lbnd); |
---|
8443 | rrbnd = EdgeList.right(rbnd); |
---|
8444 | bot = EdgeList.leftRegion(lbnd); |
---|
8445 | top = EdgeList.rightRegion(rbnd); |
---|
8446 | v = lbnd.vertex; |
---|
8447 | Geom.endPoint(lbnd.edge, lbnd.side, v); |
---|
8448 | Geom.endPoint(rbnd.edge, rbnd.side, v); |
---|
8449 | EdgeList.del(lbnd); |
---|
8450 | EventQueue.del(rbnd); |
---|
8451 | EdgeList.del(rbnd); |
---|
8452 | pm = "l"; |
---|
8453 | if (bot.y > top.y) { |
---|
8454 | temp = bot; |
---|
8455 | bot = top; |
---|
8456 | top = temp; |
---|
8457 | pm = "r"; |
---|
8458 | } |
---|
8459 | e = Geom.bisect(bot, top); |
---|
8460 | bisector = EdgeList.createHalfEdge(e, pm); |
---|
8461 | EdgeList.insert(llbnd, bisector); |
---|
8462 | Geom.endPoint(e, d3_voronoi_opposite[pm], v); |
---|
8463 | p = Geom.intersect(llbnd, bisector); |
---|
8464 | if (p) { |
---|
8465 | EventQueue.del(llbnd); |
---|
8466 | EventQueue.insert(llbnd, p, Geom.distance(p, bot)); |
---|
8467 | } |
---|
8468 | p = Geom.intersect(bisector, rrbnd); |
---|
8469 | if (p) { |
---|
8470 | EventQueue.insert(bisector, p, Geom.distance(p, bot)); |
---|
8471 | } |
---|
8472 | } else { |
---|
8473 | break; |
---|
8474 | } |
---|
8475 | }//end while |
---|
8476 | |
---|
8477 | for (lbnd = EdgeList.right(EdgeList.leftEnd); |
---|
8478 | lbnd != EdgeList.rightEnd; |
---|
8479 | lbnd = EdgeList.right(lbnd)) { |
---|
8480 | callback(lbnd.edge); |
---|
8481 | } |
---|
8482 | } |
---|
8483 | /** |
---|
8484 | * @param vertices [[x1, y1], [x2, y2], âŠ] |
---|
8485 | * @returns triangles [[[x1, y1], [x2, y2], [x3, y3]], âŠ] |
---|
8486 | */ |
---|
8487 | d3.geom.delaunay = function(vertices) { |
---|
8488 | var edges = vertices.map(function() { return []; }), |
---|
8489 | triangles = []; |
---|
8490 | |
---|
8491 | // Use the Voronoi tessellation to determine Delaunay edges. |
---|
8492 | d3_voronoi_tessellate(vertices, function(e) { |
---|
8493 | edges[e.region.l.index].push(vertices[e.region.r.index]); |
---|
8494 | }); |
---|
8495 | |
---|
8496 | // Reconnect the edges into counterclockwise triangles. |
---|
8497 | edges.forEach(function(edge, i) { |
---|
8498 | var v = vertices[i], |
---|
8499 | cx = v[0], |
---|
8500 | cy = v[1]; |
---|
8501 | edge.forEach(function(v) { |
---|
8502 | v.angle = Math.atan2(v[0] - cx, v[1] - cy); |
---|
8503 | }); |
---|
8504 | edge.sort(function(a, b) { |
---|
8505 | return a.angle - b.angle; |
---|
8506 | }); |
---|
8507 | for (var j = 0, m = edge.length - 1; j < m; j++) { |
---|
8508 | triangles.push([v, edge[j], edge[j + 1]]); |
---|
8509 | } |
---|
8510 | }); |
---|
8511 | |
---|
8512 | return triangles; |
---|
8513 | }; |
---|
8514 | // Constructs a new quadtree for the specified array of points. A quadtree is a |
---|
8515 | // two-dimensional recursive spatial subdivision. This implementation uses |
---|
8516 | // square partitions, dividing each square into four equally-sized squares. Each |
---|
8517 | // point exists in a unique node; if multiple points are in the same position, |
---|
8518 | // some points may be stored on internal nodes rather than leaf nodes. Quadtrees |
---|
8519 | // can be used to accelerate various spatial operations, such as the Barnes-Hut |
---|
8520 | // approximation for computing n-body forces, or collision detection. |
---|
8521 | d3.geom.quadtree = function(points, x1, y1, x2, y2) { |
---|
8522 | var p, |
---|
8523 | i = -1, |
---|
8524 | n = points.length; |
---|
8525 | |
---|
8526 | // Type conversion for deprecated API. |
---|
8527 | if (n && isNaN(points[0].x)) points = points.map(d3_geom_quadtreePoint); |
---|
8528 | |
---|
8529 | // Allow bounds to be specified explicitly. |
---|
8530 | if (arguments.length < 5) { |
---|
8531 | if (arguments.length === 3) { |
---|
8532 | y2 = x2 = y1; |
---|
8533 | y1 = x1; |
---|
8534 | } else { |
---|
8535 | x1 = y1 = Infinity; |
---|
8536 | x2 = y2 = -Infinity; |
---|
8537 | |
---|
8538 | // Compute bounds. |
---|
8539 | while (++i < n) { |
---|
8540 | p = points[i]; |
---|
8541 | if (p.x < x1) x1 = p.x; |
---|
8542 | if (p.y < y1) y1 = p.y; |
---|
8543 | if (p.x > x2) x2 = p.x; |
---|
8544 | if (p.y > y2) y2 = p.y; |
---|
8545 | } |
---|
8546 | |
---|
8547 | // Squarify the bounds. |
---|
8548 | var dx = x2 - x1, |
---|
8549 | dy = y2 - y1; |
---|
8550 | if (dx > dy) y2 = y1 + dx; |
---|
8551 | else x2 = x1 + dy; |
---|
8552 | } |
---|
8553 | } |
---|
8554 | |
---|
8555 | // Recursively inserts the specified point p at the node n or one of its |
---|
8556 | // descendants. The bounds are defined by [x1, x2] and [y1, y2]. |
---|
8557 | function insert(n, p, x1, y1, x2, y2) { |
---|
8558 | if (isNaN(p.x) || isNaN(p.y)) return; // ignore invalid points |
---|
8559 | if (n.leaf) { |
---|
8560 | var v = n.point; |
---|
8561 | if (v) { |
---|
8562 | // If the point at this leaf node is at the same position as the new |
---|
8563 | // point we are adding, we leave the point associated with the |
---|
8564 | // internal node while adding the new point to a child node. This |
---|
8565 | // avoids infinite recursion. |
---|
8566 | if ((Math.abs(v.x - p.x) + Math.abs(v.y - p.y)) < .01) { |
---|
8567 | insertChild(n, p, x1, y1, x2, y2); |
---|
8568 | } else { |
---|
8569 | n.point = null; |
---|
8570 | insertChild(n, v, x1, y1, x2, y2); |
---|
8571 | insertChild(n, p, x1, y1, x2, y2); |
---|
8572 | } |
---|
8573 | } else { |
---|
8574 | n.point = p; |
---|
8575 | } |
---|
8576 | } else { |
---|
8577 | insertChild(n, p, x1, y1, x2, y2); |
---|
8578 | } |
---|
8579 | } |
---|
8580 | |
---|
8581 | // Recursively inserts the specified point p into a descendant of node n. The |
---|
8582 | // bounds are defined by [x1, x2] and [y1, y2]. |
---|
8583 | function insertChild(n, p, x1, y1, x2, y2) { |
---|
8584 | // Compute the split point, and the quadrant in which to insert p. |
---|
8585 | var sx = (x1 + x2) * .5, |
---|
8586 | sy = (y1 + y2) * .5, |
---|
8587 | right = p.x >= sx, |
---|
8588 | bottom = p.y >= sy, |
---|
8589 | i = (bottom << 1) + right; |
---|
8590 | |
---|
8591 | // Recursively insert into the child node. |
---|
8592 | n.leaf = false; |
---|
8593 | n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode()); |
---|
8594 | |
---|
8595 | // Update the bounds as we recurse. |
---|
8596 | if (right) x1 = sx; else x2 = sx; |
---|
8597 | if (bottom) y1 = sy; else y2 = sy; |
---|
8598 | insert(n, p, x1, y1, x2, y2); |
---|
8599 | } |
---|
8600 | |
---|
8601 | // Create the root node. |
---|
8602 | var root = d3_geom_quadtreeNode(); |
---|
8603 | |
---|
8604 | root.add = function(p) { |
---|
8605 | insert(root, p, x1, y1, x2, y2); |
---|
8606 | }; |
---|
8607 | |
---|
8608 | root.visit = function(f) { |
---|
8609 | d3_geom_quadtreeVisit(f, root, x1, y1, x2, y2); |
---|
8610 | }; |
---|
8611 | |
---|
8612 | // Insert all points. |
---|
8613 | points.forEach(root.add); |
---|
8614 | return root; |
---|
8615 | }; |
---|
8616 | |
---|
8617 | function d3_geom_quadtreeNode() { |
---|
8618 | return { |
---|
8619 | leaf: true, |
---|
8620 | nodes: [], |
---|
8621 | point: null |
---|
8622 | }; |
---|
8623 | } |
---|
8624 | |
---|
8625 | function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) { |
---|
8626 | if (!f(node, x1, y1, x2, y2)) { |
---|
8627 | var sx = (x1 + x2) * .5, |
---|
8628 | sy = (y1 + y2) * .5, |
---|
8629 | children = node.nodes; |
---|
8630 | if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy); |
---|
8631 | if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy); |
---|
8632 | if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2); |
---|
8633 | if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2); |
---|
8634 | } |
---|
8635 | } |
---|
8636 | |
---|
8637 | function d3_geom_quadtreePoint(p) { |
---|
8638 | return { |
---|
8639 | x: p[0], |
---|
8640 | y: p[1] |
---|
8641 | }; |
---|
8642 | } |
---|
8643 | d3.time = {}; |
---|
8644 | |
---|
8645 | var d3_time = Date; |
---|
8646 | |
---|
8647 | function d3_time_utc() { |
---|
8648 | this._ = new Date(arguments.length > 1 |
---|
8649 | ? Date.UTC.apply(this, arguments) |
---|
8650 | : arguments[0]); |
---|
8651 | } |
---|
8652 | |
---|
8653 | d3_time_utc.prototype = { |
---|
8654 | getDate: function() { return this._.getUTCDate(); }, |
---|
8655 | getDay: function() { return this._.getUTCDay(); }, |
---|
8656 | getFullYear: function() { return this._.getUTCFullYear(); }, |
---|
8657 | getHours: function() { return this._.getUTCHours(); }, |
---|
8658 | getMilliseconds: function() { return this._.getUTCMilliseconds(); }, |
---|
8659 | getMinutes: function() { return this._.getUTCMinutes(); }, |
---|
8660 | getMonth: function() { return this._.getUTCMonth(); }, |
---|
8661 | getSeconds: function() { return this._.getUTCSeconds(); }, |
---|
8662 | getTime: function() { return this._.getTime(); }, |
---|
8663 | getTimezoneOffset: function() { return 0; }, |
---|
8664 | valueOf: function() { return this._.valueOf(); }, |
---|
8665 | setDate: function() { d3_time_prototype.setUTCDate.apply(this._, arguments); }, |
---|
8666 | setDay: function() { d3_time_prototype.setUTCDay.apply(this._, arguments); }, |
---|
8667 | setFullYear: function() { d3_time_prototype.setUTCFullYear.apply(this._, arguments); }, |
---|
8668 | setHours: function() { d3_time_prototype.setUTCHours.apply(this._, arguments); }, |
---|
8669 | setMilliseconds: function() { d3_time_prototype.setUTCMilliseconds.apply(this._, arguments); }, |
---|
8670 | setMinutes: function() { d3_time_prototype.setUTCMinutes.apply(this._, arguments); }, |
---|
8671 | setMonth: function() { d3_time_prototype.setUTCMonth.apply(this._, arguments); }, |
---|
8672 | setSeconds: function() { d3_time_prototype.setUTCSeconds.apply(this._, arguments); }, |
---|
8673 | setTime: function() { d3_time_prototype.setTime.apply(this._, arguments); } |
---|
8674 | }; |
---|
8675 | |
---|
8676 | var d3_time_prototype = Date.prototype; |
---|
8677 | d3.time.format = function(template) { |
---|
8678 | var n = template.length; |
---|
8679 | |
---|
8680 | function format(date) { |
---|
8681 | var string = [], |
---|
8682 | i = -1, |
---|
8683 | j = 0, |
---|
8684 | c, |
---|
8685 | f; |
---|
8686 | while (++i < n) { |
---|
8687 | if (template.charCodeAt(i) == 37) { |
---|
8688 | string.push( |
---|
8689 | template.substring(j, i), |
---|
8690 | (f = d3_time_formats[c = template.charAt(++i)]) |
---|
8691 | ? f(date) : c); |
---|
8692 | j = i + 1; |
---|
8693 | } |
---|
8694 | } |
---|
8695 | string.push(template.substring(j, i)); |
---|
8696 | return string.join(""); |
---|
8697 | } |
---|
8698 | |
---|
8699 | format.parse = function(string) { |
---|
8700 | var d = {y: 1900, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0}, |
---|
8701 | i = d3_time_parse(d, template, string, 0); |
---|
8702 | if (i != string.length) return null; |
---|
8703 | |
---|
8704 | // The am-pm flag is 0 for AM, and 1 for PM. |
---|
8705 | if ("p" in d) d.H = d.H % 12 + d.p * 12; |
---|
8706 | |
---|
8707 | var date = new d3_time(); |
---|
8708 | date.setFullYear(d.y, d.m, d.d); |
---|
8709 | date.setHours(d.H, d.M, d.S, d.L); |
---|
8710 | return date; |
---|
8711 | }; |
---|
8712 | |
---|
8713 | format.toString = function() { |
---|
8714 | return template; |
---|
8715 | }; |
---|
8716 | |
---|
8717 | return format; |
---|
8718 | }; |
---|
8719 | |
---|
8720 | function d3_time_parse(date, template, string, j) { |
---|
8721 | var c, |
---|
8722 | p, |
---|
8723 | i = 0, |
---|
8724 | n = template.length, |
---|
8725 | m = string.length; |
---|
8726 | while (i < n) { |
---|
8727 | if (j >= m) return -1; |
---|
8728 | c = template.charCodeAt(i++); |
---|
8729 | if (c == 37) { |
---|
8730 | p = d3_time_parsers[template.charAt(i++)]; |
---|
8731 | if (!p || ((j = p(date, string, j)) < 0)) return -1; |
---|
8732 | } else if (c != string.charCodeAt(j++)) { |
---|
8733 | return -1; |
---|
8734 | } |
---|
8735 | } |
---|
8736 | return j; |
---|
8737 | } |
---|
8738 | |
---|
8739 | var d3_time_zfill2 = d3.format("02d"), |
---|
8740 | d3_time_zfill3 = d3.format("03d"), |
---|
8741 | d3_time_zfill4 = d3.format("04d"), |
---|
8742 | d3_time_sfill2 = d3.format("2d"); |
---|
8743 | |
---|
8744 | var d3_time_formats = { |
---|
8745 | a: function(d) { return d3_time_weekdays[d.getDay()].substring(0, 3); }, |
---|
8746 | A: function(d) { return d3_time_weekdays[d.getDay()]; }, |
---|
8747 | b: function(d) { return d3_time_months[d.getMonth()].substring(0, 3); }, |
---|
8748 | B: function(d) { return d3_time_months[d.getMonth()]; }, |
---|
8749 | c: d3.time.format("%a %b %e %H:%M:%S %Y"), |
---|
8750 | d: function(d) { return d3_time_zfill2(d.getDate()); }, |
---|
8751 | e: function(d) { return d3_time_sfill2(d.getDate()); }, |
---|
8752 | H: function(d) { return d3_time_zfill2(d.getHours()); }, |
---|
8753 | I: function(d) { return d3_time_zfill2(d.getHours() % 12 || 12); }, |
---|
8754 | j: function(d) { return d3_time_zfill3(1 + d3.time.dayOfYear(d)); }, |
---|
8755 | L: function(d) { return d3_time_zfill3(d.getMilliseconds()); }, |
---|
8756 | m: function(d) { return d3_time_zfill2(d.getMonth() + 1); }, |
---|
8757 | M: function(d) { return d3_time_zfill2(d.getMinutes()); }, |
---|
8758 | p: function(d) { return d.getHours() >= 12 ? "PM" : "AM"; }, |
---|
8759 | S: function(d) { return d3_time_zfill2(d.getSeconds()); }, |
---|
8760 | U: function(d) { return d3_time_zfill2(d3.time.sundayOfYear(d)); }, |
---|
8761 | w: function(d) { return d.getDay(); }, |
---|
8762 | W: function(d) { return d3_time_zfill2(d3.time.mondayOfYear(d)); }, |
---|
8763 | x: d3.time.format("%m/%d/%y"), |
---|
8764 | X: d3.time.format("%H:%M:%S"), |
---|
8765 | y: function(d) { return d3_time_zfill2(d.getFullYear() % 100); }, |
---|
8766 | Y: function(d) { return d3_time_zfill4(d.getFullYear() % 10000); }, |
---|
8767 | Z: d3_time_zone, |
---|
8768 | "%": function(d) { return "%"; } |
---|
8769 | }; |
---|
8770 | |
---|
8771 | var d3_time_parsers = { |
---|
8772 | a: d3_time_parseWeekdayAbbrev, |
---|
8773 | A: d3_time_parseWeekday, |
---|
8774 | b: d3_time_parseMonthAbbrev, |
---|
8775 | B: d3_time_parseMonth, |
---|
8776 | c: d3_time_parseLocaleFull, |
---|
8777 | d: d3_time_parseDay, |
---|
8778 | e: d3_time_parseDay, |
---|
8779 | H: d3_time_parseHour24, |
---|
8780 | I: d3_time_parseHour24, |
---|
8781 | // j: function(d, s, i) { /*TODO day of year [001,366] */ return i; }, |
---|
8782 | L: d3_time_parseMilliseconds, |
---|
8783 | m: d3_time_parseMonthNumber, |
---|
8784 | M: d3_time_parseMinutes, |
---|
8785 | p: d3_time_parseAmPm, |
---|
8786 | S: d3_time_parseSeconds, |
---|
8787 | // U: function(d, s, i) { /*TODO week number (sunday) [00,53] */ return i; }, |
---|
8788 | // w: function(d, s, i) { /*TODO weekday [0,6] */ return i; }, |
---|
8789 | // W: function(d, s, i) { /*TODO week number (monday) [00,53] */ return i; }, |
---|
8790 | x: d3_time_parseLocaleDate, |
---|
8791 | X: d3_time_parseLocaleTime, |
---|
8792 | y: d3_time_parseYear, |
---|
8793 | Y: d3_time_parseFullYear |
---|
8794 | // , |
---|
8795 | // Z: function(d, s, i) { /*TODO time zone */ return i; }, |
---|
8796 | // "%": function(d, s, i) { /*TODO literal % */ return i; } |
---|
8797 | }; |
---|
8798 | |
---|
8799 | // Note: weekday is validated, but does not set the date. |
---|
8800 | function d3_time_parseWeekdayAbbrev(date, string, i) { |
---|
8801 | return d3_time_weekdayAbbrevRe.test(string.substring(i, i += 3)) ? i : -1; |
---|
8802 | } |
---|
8803 | |
---|
8804 | // Note: weekday is validated, but does not set the date. |
---|
8805 | function d3_time_parseWeekday(date, string, i) { |
---|
8806 | d3_time_weekdayRe.lastIndex = 0; |
---|
8807 | var n = d3_time_weekdayRe.exec(string.substring(i, i + 10)); |
---|
8808 | return n ? i += n[0].length : -1; |
---|
8809 | } |
---|
8810 | |
---|
8811 | var d3_time_weekdayAbbrevRe = /^(?:sun|mon|tue|wed|thu|fri|sat)/i, |
---|
8812 | d3_time_weekdayRe = /^(?:Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday)/i; |
---|
8813 | d3_time_weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]; |
---|
8814 | |
---|
8815 | function d3_time_parseMonthAbbrev(date, string, i) { |
---|
8816 | var n = d3_time_monthAbbrevLookup.get(string.substring(i, i += 3).toLowerCase()); |
---|
8817 | return n == null ? -1 : (date.m = n, i); |
---|
8818 | } |
---|
8819 | |
---|
8820 | var d3_time_monthAbbrevLookup = d3.map({ |
---|
8821 | jan: 0, |
---|
8822 | feb: 1, |
---|
8823 | mar: 2, |
---|
8824 | apr: 3, |
---|
8825 | may: 4, |
---|
8826 | jun: 5, |
---|
8827 | jul: 6, |
---|
8828 | aug: 7, |
---|
8829 | sep: 8, |
---|
8830 | oct: 9, |
---|
8831 | nov: 10, |
---|
8832 | dec: 11 |
---|
8833 | }); |
---|
8834 | |
---|
8835 | function d3_time_parseMonth(date, string, i) { |
---|
8836 | d3_time_monthRe.lastIndex = 0; |
---|
8837 | var n = d3_time_monthRe.exec(string.substring(i, i + 12)); |
---|
8838 | return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i += n[0].length) : -1; |
---|
8839 | } |
---|
8840 | |
---|
8841 | var d3_time_monthRe = /^(?:January|February|March|April|May|June|July|August|September|October|November|December)/ig; |
---|
8842 | |
---|
8843 | var d3_time_monthLookup = d3.map({ |
---|
8844 | january: 0, |
---|
8845 | february: 1, |
---|
8846 | march: 2, |
---|
8847 | april: 3, |
---|
8848 | may: 4, |
---|
8849 | june: 5, |
---|
8850 | july: 6, |
---|
8851 | august: 7, |
---|
8852 | september: 8, |
---|
8853 | october: 9, |
---|
8854 | november: 10, |
---|
8855 | december: 11 |
---|
8856 | }); |
---|
8857 | |
---|
8858 | var d3_time_months = [ |
---|
8859 | "January", |
---|
8860 | "February", |
---|
8861 | "March", |
---|
8862 | "April", |
---|
8863 | "May", |
---|
8864 | "June", |
---|
8865 | "July", |
---|
8866 | "August", |
---|
8867 | "September", |
---|
8868 | "October", |
---|
8869 | "November", |
---|
8870 | "December" |
---|
8871 | ]; |
---|
8872 | |
---|
8873 | function d3_time_parseLocaleFull(date, string, i) { |
---|
8874 | return d3_time_parse(date, d3_time_formats.c.toString(), string, i); |
---|
8875 | } |
---|
8876 | |
---|
8877 | function d3_time_parseLocaleDate(date, string, i) { |
---|
8878 | return d3_time_parse(date, d3_time_formats.x.toString(), string, i); |
---|
8879 | } |
---|
8880 | |
---|
8881 | function d3_time_parseLocaleTime(date, string, i) { |
---|
8882 | return d3_time_parse(date, d3_time_formats.X.toString(), string, i); |
---|
8883 | } |
---|
8884 | |
---|
8885 | function d3_time_parseFullYear(date, string, i) { |
---|
8886 | d3_time_numberRe.lastIndex = 0; |
---|
8887 | var n = d3_time_numberRe.exec(string.substring(i, i + 4)); |
---|
8888 | return n ? (date.y = +n[0], i += n[0].length) : -1; |
---|
8889 | } |
---|
8890 | |
---|
8891 | function d3_time_parseYear(date, string, i) { |
---|
8892 | d3_time_numberRe.lastIndex = 0; |
---|
8893 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
8894 | return n ? (date.y = d3_time_century() + +n[0], i += n[0].length) : -1; |
---|
8895 | } |
---|
8896 | |
---|
8897 | function d3_time_century() { |
---|
8898 | return ~~(new Date().getFullYear() / 1000) * 1000; |
---|
8899 | } |
---|
8900 | |
---|
8901 | function d3_time_parseMonthNumber(date, string, i) { |
---|
8902 | d3_time_numberRe.lastIndex = 0; |
---|
8903 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
8904 | return n ? (date.m = n[0] - 1, i += n[0].length) : -1; |
---|
8905 | } |
---|
8906 | |
---|
8907 | function d3_time_parseDay(date, string, i) { |
---|
8908 | d3_time_numberRe.lastIndex = 0; |
---|
8909 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
8910 | return n ? (date.d = +n[0], i += n[0].length) : -1; |
---|
8911 | } |
---|
8912 | |
---|
8913 | // Note: we don't validate that the hour is in the range [0,23] or [1,12]. |
---|
8914 | function d3_time_parseHour24(date, string, i) { |
---|
8915 | d3_time_numberRe.lastIndex = 0; |
---|
8916 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
8917 | return n ? (date.H = +n[0], i += n[0].length) : -1; |
---|
8918 | } |
---|
8919 | |
---|
8920 | function d3_time_parseMinutes(date, string, i) { |
---|
8921 | d3_time_numberRe.lastIndex = 0; |
---|
8922 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
8923 | return n ? (date.M = +n[0], i += n[0].length) : -1; |
---|
8924 | } |
---|
8925 | |
---|
8926 | function d3_time_parseSeconds(date, string, i) { |
---|
8927 | d3_time_numberRe.lastIndex = 0; |
---|
8928 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
8929 | return n ? (date.S = +n[0], i += n[0].length) : -1; |
---|
8930 | } |
---|
8931 | |
---|
8932 | function d3_time_parseMilliseconds(date, string, i) { |
---|
8933 | d3_time_numberRe.lastIndex = 0; |
---|
8934 | var n = d3_time_numberRe.exec(string.substring(i, i + 3)); |
---|
8935 | return n ? (date.L = +n[0], i += n[0].length) : -1; |
---|
8936 | } |
---|
8937 | |
---|
8938 | // Note: we don't look at the next directive. |
---|
8939 | var d3_time_numberRe = /\s*\d+/; |
---|
8940 | |
---|
8941 | function d3_time_parseAmPm(date, string, i) { |
---|
8942 | var n = d3_time_amPmLookup.get(string.substring(i, i += 2).toLowerCase()); |
---|
8943 | return n == null ? -1 : (date.p = n, i); |
---|
8944 | } |
---|
8945 | |
---|
8946 | var d3_time_amPmLookup = d3.map({ |
---|
8947 | am: 0, |
---|
8948 | pm: 1 |
---|
8949 | }); |
---|
8950 | |
---|
8951 | // TODO table of time zone offset names? |
---|
8952 | function d3_time_zone(d) { |
---|
8953 | var z = d.getTimezoneOffset(), |
---|
8954 | zs = z > 0 ? "-" : "+", |
---|
8955 | zh = ~~(Math.abs(z) / 60), |
---|
8956 | zm = Math.abs(z) % 60; |
---|
8957 | return zs + d3_time_zfill2(zh) + d3_time_zfill2(zm); |
---|
8958 | } |
---|
8959 | d3.time.format.utc = function(template) { |
---|
8960 | var local = d3.time.format(template); |
---|
8961 | |
---|
8962 | function format(date) { |
---|
8963 | try { |
---|
8964 | d3_time = d3_time_utc; |
---|
8965 | var utc = new d3_time(); |
---|
8966 | utc._ = date; |
---|
8967 | return local(utc); |
---|
8968 | } finally { |
---|
8969 | d3_time = Date; |
---|
8970 | } |
---|
8971 | } |
---|
8972 | |
---|
8973 | format.parse = function(string) { |
---|
8974 | try { |
---|
8975 | d3_time = d3_time_utc; |
---|
8976 | var date = local.parse(string); |
---|
8977 | return date && date._; |
---|
8978 | } finally { |
---|
8979 | d3_time = Date; |
---|
8980 | } |
---|
8981 | }; |
---|
8982 | |
---|
8983 | format.toString = local.toString; |
---|
8984 | |
---|
8985 | return format; |
---|
8986 | }; |
---|
8987 | var d3_time_formatIso = d3.time.format.utc("%Y-%m-%dT%H:%M:%S.%LZ"); |
---|
8988 | |
---|
8989 | d3.time.format.iso = Date.prototype.toISOString ? d3_time_formatIsoNative : d3_time_formatIso; |
---|
8990 | |
---|
8991 | function d3_time_formatIsoNative(date) { |
---|
8992 | return date.toISOString(); |
---|
8993 | } |
---|
8994 | |
---|
8995 | d3_time_formatIsoNative.parse = function(string) { |
---|
8996 | return new Date(string); |
---|
8997 | }; |
---|
8998 | |
---|
8999 | d3_time_formatIsoNative.toString = d3_time_formatIso.toString; |
---|
9000 | function d3_time_interval(local, step, number) { |
---|
9001 | |
---|
9002 | function round(date) { |
---|
9003 | var d0 = local(date), d1 = offset(d0, 1); |
---|
9004 | return date - d0 < d1 - date ? d0 : d1; |
---|
9005 | } |
---|
9006 | |
---|
9007 | function ceil(date) { |
---|
9008 | step(date = local(new d3_time(date - 1)), 1); |
---|
9009 | return date; |
---|
9010 | } |
---|
9011 | |
---|
9012 | function offset(date, k) { |
---|
9013 | step(date = new d3_time(+date), k); |
---|
9014 | return date; |
---|
9015 | } |
---|
9016 | |
---|
9017 | function range(t0, t1, dt) { |
---|
9018 | var time = ceil(t0), times = []; |
---|
9019 | if (dt > 1) { |
---|
9020 | while (time < t1) { |
---|
9021 | if (!(number(time) % dt)) times.push(new Date(+time)); |
---|
9022 | step(time, 1); |
---|
9023 | } |
---|
9024 | } else { |
---|
9025 | while (time < t1) times.push(new Date(+time)), step(time, 1); |
---|
9026 | } |
---|
9027 | return times; |
---|
9028 | } |
---|
9029 | |
---|
9030 | function range_utc(t0, t1, dt) { |
---|
9031 | try { |
---|
9032 | d3_time = d3_time_utc; |
---|
9033 | var utc = new d3_time_utc(); |
---|
9034 | utc._ = t0; |
---|
9035 | return range(utc, t1, dt); |
---|
9036 | } finally { |
---|
9037 | d3_time = Date; |
---|
9038 | } |
---|
9039 | } |
---|
9040 | |
---|
9041 | local.floor = local; |
---|
9042 | local.round = round; |
---|
9043 | local.ceil = ceil; |
---|
9044 | local.offset = offset; |
---|
9045 | local.range = range; |
---|
9046 | |
---|
9047 | var utc = local.utc = d3_time_interval_utc(local); |
---|
9048 | utc.floor = utc; |
---|
9049 | utc.round = d3_time_interval_utc(round); |
---|
9050 | utc.ceil = d3_time_interval_utc(ceil); |
---|
9051 | utc.offset = d3_time_interval_utc(offset); |
---|
9052 | utc.range = range_utc; |
---|
9053 | |
---|
9054 | return local; |
---|
9055 | } |
---|
9056 | |
---|
9057 | function d3_time_interval_utc(method) { |
---|
9058 | return function(date, k) { |
---|
9059 | try { |
---|
9060 | d3_time = d3_time_utc; |
---|
9061 | var utc = new d3_time_utc(); |
---|
9062 | utc._ = date; |
---|
9063 | return method(utc, k)._; |
---|
9064 | } finally { |
---|
9065 | d3_time = Date; |
---|
9066 | } |
---|
9067 | }; |
---|
9068 | } |
---|
9069 | d3.time.second = d3_time_interval(function(date) { |
---|
9070 | return new d3_time(Math.floor(date / 1e3) * 1e3); |
---|
9071 | }, function(date, offset) { |
---|
9072 | date.setTime(date.getTime() + Math.floor(offset) * 1e3); // DST breaks setSeconds |
---|
9073 | }, function(date) { |
---|
9074 | return date.getSeconds(); |
---|
9075 | }); |
---|
9076 | |
---|
9077 | d3.time.seconds = d3.time.second.range; |
---|
9078 | d3.time.seconds.utc = d3.time.second.utc.range; |
---|
9079 | d3.time.minute = d3_time_interval(function(date) { |
---|
9080 | return new d3_time(Math.floor(date / 6e4) * 6e4); |
---|
9081 | }, function(date, offset) { |
---|
9082 | date.setTime(date.getTime() + Math.floor(offset) * 6e4); // DST breaks setMinutes |
---|
9083 | }, function(date) { |
---|
9084 | return date.getMinutes(); |
---|
9085 | }); |
---|
9086 | |
---|
9087 | d3.time.minutes = d3.time.minute.range; |
---|
9088 | d3.time.minutes.utc = d3.time.minute.utc.range; |
---|
9089 | d3.time.hour = d3_time_interval(function(date) { |
---|
9090 | var timezone = date.getTimezoneOffset() / 60; |
---|
9091 | return new d3_time((Math.floor(date / 36e5 - timezone) + timezone) * 36e5); |
---|
9092 | }, function(date, offset) { |
---|
9093 | date.setTime(date.getTime() + Math.floor(offset) * 36e5); // DST breaks setHours |
---|
9094 | }, function(date) { |
---|
9095 | return date.getHours(); |
---|
9096 | }); |
---|
9097 | |
---|
9098 | d3.time.hours = d3.time.hour.range; |
---|
9099 | d3.time.hours.utc = d3.time.hour.utc.range; |
---|
9100 | d3.time.day = d3_time_interval(function(date) { |
---|
9101 | return new d3_time(date.getFullYear(), date.getMonth(), date.getDate()); |
---|
9102 | }, function(date, offset) { |
---|
9103 | date.setDate(date.getDate() + offset); |
---|
9104 | }, function(date) { |
---|
9105 | return date.getDate() - 1; |
---|
9106 | }); |
---|
9107 | |
---|
9108 | d3.time.days = d3.time.day.range; |
---|
9109 | d3.time.days.utc = d3.time.day.utc.range; |
---|
9110 | |
---|
9111 | d3.time.dayOfYear = function(date) { |
---|
9112 | var year = d3.time.year(date); |
---|
9113 | return Math.floor((date - year) / 864e5 - (date.getTimezoneOffset() - year.getTimezoneOffset()) / 1440); |
---|
9114 | }; |
---|
9115 | d3_time_weekdays.forEach(function(day, i) { |
---|
9116 | day = day.toLowerCase(); |
---|
9117 | i = 7 - i; |
---|
9118 | |
---|
9119 | var interval = d3.time[day] = d3_time_interval(function(date) { |
---|
9120 | (date = d3.time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7); |
---|
9121 | return date; |
---|
9122 | }, function(date, offset) { |
---|
9123 | date.setDate(date.getDate() + Math.floor(offset) * 7); |
---|
9124 | }, function(date) { |
---|
9125 | var day = d3.time.year(date).getDay(); |
---|
9126 | return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i); |
---|
9127 | }); |
---|
9128 | |
---|
9129 | d3.time[day + "s"] = interval.range; |
---|
9130 | d3.time[day + "s"].utc = interval.utc.range; |
---|
9131 | |
---|
9132 | d3.time[day + "OfYear"] = function(date) { |
---|
9133 | var day = d3.time.year(date).getDay(); |
---|
9134 | return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7); |
---|
9135 | }; |
---|
9136 | }); |
---|
9137 | |
---|
9138 | d3.time.week = d3.time.sunday; |
---|
9139 | d3.time.weeks = d3.time.sunday.range; |
---|
9140 | d3.time.weeks.utc = d3.time.sunday.utc.range; |
---|
9141 | d3.time.weekOfYear = d3.time.sundayOfYear; |
---|
9142 | d3.time.month = d3_time_interval(function(date) { |
---|
9143 | return new d3_time(date.getFullYear(), date.getMonth(), 1); |
---|
9144 | }, function(date, offset) { |
---|
9145 | date.setMonth(date.getMonth() + offset); |
---|
9146 | }, function(date) { |
---|
9147 | return date.getMonth(); |
---|
9148 | }); |
---|
9149 | |
---|
9150 | d3.time.months = d3.time.month.range; |
---|
9151 | d3.time.months.utc = d3.time.month.utc.range; |
---|
9152 | d3.time.year = d3_time_interval(function(date) { |
---|
9153 | return new d3_time(date.getFullYear(), 0, 1); |
---|
9154 | }, function(date, offset) { |
---|
9155 | date.setFullYear(date.getFullYear() + offset); |
---|
9156 | }, function(date) { |
---|
9157 | return date.getFullYear(); |
---|
9158 | }); |
---|
9159 | |
---|
9160 | d3.time.years = d3.time.year.range; |
---|
9161 | d3.time.years.utc = d3.time.year.utc.range; |
---|
9162 | function d3_time_scale(linear, methods, format) { |
---|
9163 | |
---|
9164 | function scale(x) { |
---|
9165 | return linear(x); |
---|
9166 | } |
---|
9167 | |
---|
9168 | scale.invert = function(x) { |
---|
9169 | return d3_time_scaleDate(linear.invert(x)); |
---|
9170 | }; |
---|
9171 | |
---|
9172 | scale.domain = function(x) { |
---|
9173 | if (!arguments.length) return linear.domain().map(d3_time_scaleDate); |
---|
9174 | linear.domain(x); |
---|
9175 | return scale; |
---|
9176 | }; |
---|
9177 | |
---|
9178 | scale.nice = function(m) { |
---|
9179 | var extent = d3_time_scaleExtent(scale.domain()); |
---|
9180 | return scale.domain([m.floor(extent[0]), m.ceil(extent[1])]); |
---|
9181 | }; |
---|
9182 | |
---|
9183 | scale.ticks = function(m, k) { |
---|
9184 | var extent = d3_time_scaleExtent(scale.domain()); |
---|
9185 | if (typeof m !== "function") { |
---|
9186 | var span = extent[1] - extent[0], |
---|
9187 | target = span / m, |
---|
9188 | i = d3.bisect(d3_time_scaleSteps, target); |
---|
9189 | if (i == d3_time_scaleSteps.length) return methods.year(extent, m); |
---|
9190 | if (!i) return linear.ticks(m).map(d3_time_scaleDate); |
---|
9191 | if (Math.log(target / d3_time_scaleSteps[i - 1]) < Math.log(d3_time_scaleSteps[i] / target)) --i; |
---|
9192 | m = methods[i]; |
---|
9193 | k = m[1]; |
---|
9194 | m = m[0].range; |
---|
9195 | } |
---|
9196 | return m(extent[0], new Date(+extent[1] + 1), k); // inclusive upper bound |
---|
9197 | }; |
---|
9198 | |
---|
9199 | scale.tickFormat = function() { |
---|
9200 | return format; |
---|
9201 | }; |
---|
9202 | |
---|
9203 | scale.copy = function() { |
---|
9204 | return d3_time_scale(linear.copy(), methods, format); |
---|
9205 | }; |
---|
9206 | |
---|
9207 | // TOOD expose d3_scale_linear_rebind? |
---|
9208 | return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp"); |
---|
9209 | } |
---|
9210 | |
---|
9211 | // TODO expose d3_scaleExtent? |
---|
9212 | function d3_time_scaleExtent(domain) { |
---|
9213 | var start = domain[0], stop = domain[domain.length - 1]; |
---|
9214 | return start < stop ? [start, stop] : [stop, start]; |
---|
9215 | } |
---|
9216 | |
---|
9217 | function d3_time_scaleDate(t) { |
---|
9218 | return new Date(t); |
---|
9219 | } |
---|
9220 | |
---|
9221 | function d3_time_scaleFormat(formats) { |
---|
9222 | return function(date) { |
---|
9223 | var i = formats.length - 1, f = formats[i]; |
---|
9224 | while (!f[1](date)) f = formats[--i]; |
---|
9225 | return f[0](date); |
---|
9226 | }; |
---|
9227 | } |
---|
9228 | |
---|
9229 | function d3_time_scaleSetYear(y) { |
---|
9230 | var d = new Date(y, 0, 1); |
---|
9231 | d.setFullYear(y); // Y2K fail |
---|
9232 | return d; |
---|
9233 | } |
---|
9234 | |
---|
9235 | function d3_time_scaleGetYear(d) { |
---|
9236 | var y = d.getFullYear(), |
---|
9237 | d0 = d3_time_scaleSetYear(y), |
---|
9238 | d1 = d3_time_scaleSetYear(y + 1); |
---|
9239 | return y + (d - d0) / (d1 - d0); |
---|
9240 | } |
---|
9241 | |
---|
9242 | var d3_time_scaleSteps = [ |
---|
9243 | 1e3, // 1-second |
---|
9244 | 5e3, // 5-second |
---|
9245 | 15e3, // 15-second |
---|
9246 | 3e4, // 30-second |
---|
9247 | 6e4, // 1-minute |
---|
9248 | 3e5, // 5-minute |
---|
9249 | 9e5, // 15-minute |
---|
9250 | 18e5, // 30-minute |
---|
9251 | 36e5, // 1-hour |
---|
9252 | 108e5, // 3-hour |
---|
9253 | 216e5, // 6-hour |
---|
9254 | 432e5, // 12-hour |
---|
9255 | 864e5, // 1-day |
---|
9256 | 1728e5, // 2-day |
---|
9257 | 6048e5, // 1-week |
---|
9258 | 2592e6, // 1-month |
---|
9259 | 7776e6, // 3-month |
---|
9260 | 31536e6 // 1-year |
---|
9261 | ]; |
---|
9262 | |
---|
9263 | var d3_time_scaleLocalMethods = [ |
---|
9264 | [d3.time.second, 1], |
---|
9265 | [d3.time.second, 5], |
---|
9266 | [d3.time.second, 15], |
---|
9267 | [d3.time.second, 30], |
---|
9268 | [d3.time.minute, 1], |
---|
9269 | [d3.time.minute, 5], |
---|
9270 | [d3.time.minute, 15], |
---|
9271 | [d3.time.minute, 30], |
---|
9272 | [d3.time.hour, 1], |
---|
9273 | [d3.time.hour, 3], |
---|
9274 | [d3.time.hour, 6], |
---|
9275 | [d3.time.hour, 12], |
---|
9276 | [d3.time.day, 1], |
---|
9277 | [d3.time.day, 2], |
---|
9278 | [d3.time.week, 1], |
---|
9279 | [d3.time.month, 1], |
---|
9280 | [d3.time.month, 3], |
---|
9281 | [d3.time.year, 1] |
---|
9282 | ]; |
---|
9283 | |
---|
9284 | var d3_time_scaleLocalFormats = [ |
---|
9285 | [d3.time.format("%Y"), function(d) { return true; }], |
---|
9286 | [d3.time.format("%B"), function(d) { return d.getMonth(); }], |
---|
9287 | [d3.time.format("%b %d"), function(d) { return d.getDate() != 1; }], |
---|
9288 | [d3.time.format("%a %d"), function(d) { return d.getDay() && d.getDate() != 1; }], |
---|
9289 | [d3.time.format("%I %p"), function(d) { return d.getHours(); }], |
---|
9290 | [d3.time.format("%I:%M"), function(d) { return d.getMinutes(); }], |
---|
9291 | [d3.time.format(":%S"), function(d) { return d.getSeconds(); }], |
---|
9292 | [d3.time.format(".%L"), function(d) { return d.getMilliseconds(); }] |
---|
9293 | ]; |
---|
9294 | |
---|
9295 | var d3_time_scaleLinear = d3.scale.linear(), |
---|
9296 | d3_time_scaleLocalFormat = d3_time_scaleFormat(d3_time_scaleLocalFormats); |
---|
9297 | |
---|
9298 | d3_time_scaleLocalMethods.year = function(extent, m) { |
---|
9299 | return d3_time_scaleLinear.domain(extent.map(d3_time_scaleGetYear)).ticks(m).map(d3_time_scaleSetYear); |
---|
9300 | }; |
---|
9301 | |
---|
9302 | d3.time.scale = function() { |
---|
9303 | return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat); |
---|
9304 | }; |
---|
9305 | var d3_time_scaleUTCMethods = d3_time_scaleLocalMethods.map(function(m) { |
---|
9306 | return [m[0].utc, m[1]]; |
---|
9307 | }); |
---|
9308 | |
---|
9309 | var d3_time_scaleUTCFormats = [ |
---|
9310 | [d3.time.format.utc("%Y"), function(d) { return true; }], |
---|
9311 | [d3.time.format.utc("%B"), function(d) { return d.getUTCMonth(); }], |
---|
9312 | [d3.time.format.utc("%b %d"), function(d) { return d.getUTCDate() != 1; }], |
---|
9313 | [d3.time.format.utc("%a %d"), function(d) { return d.getUTCDay() && d.getUTCDate() != 1; }], |
---|
9314 | [d3.time.format.utc("%I %p"), function(d) { return d.getUTCHours(); }], |
---|
9315 | [d3.time.format.utc("%I:%M"), function(d) { return d.getUTCMinutes(); }], |
---|
9316 | [d3.time.format.utc(":%S"), function(d) { return d.getUTCSeconds(); }], |
---|
9317 | [d3.time.format.utc(".%L"), function(d) { return d.getUTCMilliseconds(); }] |
---|
9318 | ]; |
---|
9319 | |
---|
9320 | var d3_time_scaleUTCFormat = d3_time_scaleFormat(d3_time_scaleUTCFormats); |
---|
9321 | |
---|
9322 | function d3_time_scaleUTCSetYear(y) { |
---|
9323 | var d = new Date(Date.UTC(y, 0, 1)); |
---|
9324 | d.setUTCFullYear(y); // Y2K fail |
---|
9325 | return d; |
---|
9326 | } |
---|
9327 | |
---|
9328 | function d3_time_scaleUTCGetYear(d) { |
---|
9329 | var y = d.getUTCFullYear(), |
---|
9330 | d0 = d3_time_scaleUTCSetYear(y), |
---|
9331 | d1 = d3_time_scaleUTCSetYear(y + 1); |
---|
9332 | return y + (d - d0) / (d1 - d0); |
---|
9333 | } |
---|
9334 | |
---|
9335 | d3_time_scaleUTCMethods.year = function(extent, m) { |
---|
9336 | return d3_time_scaleLinear.domain(extent.map(d3_time_scaleUTCGetYear)).ticks(m).map(d3_time_scaleUTCSetYear); |
---|
9337 | }; |
---|
9338 | |
---|
9339 | d3.time.scale.utc = function() { |
---|
9340 | return d3_time_scale(d3.scale.linear(), d3_time_scaleUTCMethods, d3_time_scaleUTCFormat); |
---|
9341 | }; |
---|
9342 | })(); |
---|