[3594] | 1 | <?php |
---|
| 2 | /*======================================================================= |
---|
| 3 | // File: JPGRAPH.PHP |
---|
| 4 | // Description: PHP4 Graph Plotting library. Base module. |
---|
| 5 | // Created: 2001-01-08 |
---|
| 6 | // Author: Johan Persson (johanp@aditus.nu) |
---|
| 7 | // Ver: $Id: jpgraph.php 21908 2006-06-21 18:30:15Z ralfbecker $ |
---|
| 8 | // |
---|
| 9 | // License: This code is released under GPL 2.0 |
---|
| 10 | // Copyright (C) 2001 Johan Persson |
---|
| 11 | //======================================================================== |
---|
| 12 | */ |
---|
| 13 | |
---|
| 14 | // Get all directory paths |
---|
| 15 | include ( "jpgraph_dir.php" ); |
---|
| 16 | |
---|
| 17 | // What group should the cached file belong to |
---|
| 18 | // (Set to "" will give the default group for the "PHP-user") |
---|
| 19 | // Please note that the Apache user must be a member of the |
---|
| 20 | // specified group since otherwise it is impossible for Apache |
---|
| 21 | // to set the specified group. |
---|
| 22 | DEFINE("CACHE_FILE_GROUP",""); |
---|
| 23 | |
---|
| 24 | // What permissions should the cached file have |
---|
| 25 | // (Set to "" will give the default persmissions for the "PHP-user") |
---|
| 26 | DEFINE("CACHE_FILE_MOD",0664); |
---|
| 27 | |
---|
| 28 | // Should we try to find an image in the cache before generating it? |
---|
| 29 | // Set this define to false to bypass the reading of the cache and always |
---|
| 30 | // regenerate the image. Note that even if reading the cache is |
---|
| 31 | // disabled the cached will still be updated with the newly generated |
---|
| 32 | // image. Set also "USE_CACHE" below. |
---|
| 33 | DEFINE("READ_CACHE",false); |
---|
| 34 | |
---|
| 35 | // Should the cache be used at all? By setting this to false no |
---|
| 36 | // files will be generated in the cache directory. |
---|
| 37 | // The difference from READ_CACHE being that setting READ_CACHE to |
---|
| 38 | // false will still create the image in the cache directory |
---|
| 39 | // just not use it. By setting USE_CACHE=false no files will even |
---|
| 40 | // be generated in the cache directory. |
---|
| 41 | DEFINE("USE_CACHE",false); |
---|
| 42 | |
---|
| 43 | // If the color palette is full should JpGraph try to allocate |
---|
| 44 | // the closest match? If you plan on using background image or |
---|
| 45 | // gradient fills it might be a good idea to enable this. |
---|
| 46 | // If not you will otherwise get an error saying that the color palette is |
---|
| 47 | // exhausted. The drawback of using approximations is that the colors |
---|
| 48 | // might not be exactly what you specified. |
---|
| 49 | // Note1: This does only apply to paletted images, not truecolor |
---|
| 50 | // images since they don't have the limitations of maximum number |
---|
| 51 | // of colors. |
---|
| 52 | DEFINE("USE_APPROX_COLORS",true); |
---|
| 53 | |
---|
| 54 | // Should usage of deprecated functions and parameters give a fatal error? |
---|
| 55 | // (Useful to check if code is future proof.) |
---|
| 56 | DEFINE("ERR_DEPRECATED",true); |
---|
| 57 | |
---|
| 58 | // Should the time taken to generate each picture be branded to the lower |
---|
| 59 | // left in corner in each generated image? Useful for performace measurements |
---|
| 60 | // generating graphs |
---|
| 61 | DEFINE("BRAND_TIMING",false); |
---|
| 62 | |
---|
| 63 | // What format should be used for the timing string? |
---|
| 64 | DEFINE("BRAND_TIME_FORMAT","Generated in: %01.3fs"); |
---|
| 65 | |
---|
| 66 | // Decide if we should use the bresenham circle algorithm or the |
---|
| 67 | // built in Arc(). Bresenham gives better visual apperance of circles |
---|
| 68 | // but is more CPU intensive and slower then the built in Arc() function |
---|
| 69 | // in GD. Turned off by default for speed |
---|
| 70 | DEFINE("USE_BRESENHAM",false); |
---|
| 71 | |
---|
| 72 | // Deafult graphic format set to "auto" which will automtically |
---|
| 73 | // choose the best available format in the order png,gif,jpg |
---|
| 74 | // (The supported format depends on what your PHP installation supports) |
---|
| 75 | DEFINE("DEFAULT_GFORMAT","auto"); |
---|
| 76 | |
---|
| 77 | // Special unicode language support |
---|
| 78 | DEFINE("LANGUAGE_CYRILLIC",false); |
---|
| 79 | |
---|
| 80 | // Enable some extra debug information to be shown. |
---|
| 81 | // (Should only be used if your first name is Johan) |
---|
| 82 | DEFINE("JPG_DEBUG",false); |
---|
| 83 | |
---|
| 84 | // Should the image be a truecolor image? |
---|
| 85 | // Note 1: Can only be used with GD 2.0.2 and above. |
---|
| 86 | // Note 2: GD 2.0.1 + PHP 4.0.6 on Win32 crashes when trying to use |
---|
| 87 | // trucolor. Truecolor support is to be considered alpha since GD 2.x |
---|
| 88 | // is still not considered stable (especially on Win32). |
---|
| 89 | // Note 1: MUST be enabled to get background images working with GD2 |
---|
| 90 | // Note 2: If enabled then truetype fonts will look very ugly |
---|
| 91 | // => You can't have both background images and truetype fonts in the same |
---|
| 92 | // image until these bugs has been fixed in GD 2.01 |
---|
| 93 | DEFINE('USE_TRUECOLOR',true); |
---|
| 94 | |
---|
| 95 | //------------------------------------------------------------------ |
---|
| 96 | // Constants which are used as parameters for the method calls |
---|
| 97 | //------------------------------------------------------------------ |
---|
| 98 | |
---|
| 99 | // TTF Font families |
---|
| 100 | DEFINE("FF_COURIER",10); |
---|
| 101 | DEFINE("FF_VERDANA",11); |
---|
| 102 | DEFINE("FF_TIMES",12); |
---|
| 103 | DEFINE("FF_HANDWRT",13); |
---|
| 104 | DEFINE("FF_COMIC",14); |
---|
| 105 | DEFINE("FF_ARIAL",15); |
---|
| 106 | DEFINE("FF_BOOK",16); |
---|
| 107 | DEFINE("FF_VERA",17); |
---|
| 108 | |
---|
| 109 | // TTF Font styles |
---|
| 110 | DEFINE("FS_NORMAL",1); |
---|
| 111 | DEFINE("FS_BOLD",2); |
---|
| 112 | DEFINE("FS_ITALIC",3); |
---|
| 113 | DEFINE("FS_BOLDIT",4); |
---|
| 114 | |
---|
| 115 | //Definitions for internal font, new style |
---|
| 116 | DEFINE("FF_FONT0",1); |
---|
| 117 | DEFINE("FF_FONT1",2); |
---|
| 118 | DEFINE("FF_FONT2",4); |
---|
| 119 | |
---|
| 120 | //Definitions for internal font, old style |
---|
| 121 | // (Only defined here to be able to generate an error mesage |
---|
| 122 | // when used) |
---|
| 123 | DEFINE("FONT0",99); // Deprecated from 1.2 |
---|
| 124 | DEFINE("FONT1",98); // Deprecated from 1.2 |
---|
| 125 | DEFINE("FONT1_BOLD",97); // Deprecated from 1.2 |
---|
| 126 | DEFINE("FONT2",96); // Deprecated from 1.2 |
---|
| 127 | DEFINE("FONT2_BOLD",95); // Deprecated from 1.2 |
---|
| 128 | |
---|
| 129 | // Tick density |
---|
| 130 | DEFINE("TICKD_DENSE",1); |
---|
| 131 | DEFINE("TICKD_NORMAL",2); |
---|
| 132 | DEFINE("TICKD_SPARSE",3); |
---|
| 133 | DEFINE("TICKD_VERYSPARSE",4); |
---|
| 134 | |
---|
| 135 | // Side for ticks and labels. |
---|
| 136 | DEFINE("SIDE_LEFT",-1); |
---|
| 137 | DEFINE("SIDE_RIGHT",1); |
---|
| 138 | DEFINE("SIDE_DOWN",-1); |
---|
| 139 | DEFINE("SIDE_UP",1); |
---|
| 140 | |
---|
| 141 | // Legend type stacked vertical or horizontal |
---|
| 142 | DEFINE("LEGEND_VERT",0); |
---|
| 143 | DEFINE("LEGEND_HOR",1); |
---|
| 144 | |
---|
| 145 | // Mark types for plot marks |
---|
| 146 | DEFINE("MARK_SQUARE",1); |
---|
| 147 | DEFINE("MARK_UTRIANGLE",2); |
---|
| 148 | DEFINE("MARK_DTRIANGLE",3); |
---|
| 149 | DEFINE("MARK_DIAMOND",4); |
---|
| 150 | DEFINE("MARK_CIRCLE",5); |
---|
| 151 | DEFINE("MARK_FILLEDCIRCLE",6); |
---|
| 152 | DEFINE("MARK_CROSS",7); |
---|
| 153 | DEFINE("MARK_STAR",8); |
---|
| 154 | DEFINE("MARK_X",9); |
---|
| 155 | |
---|
| 156 | // Styles for gradient color fill |
---|
| 157 | DEFINE("GRAD_VER",1); |
---|
| 158 | DEFINE("GRAD_HOR",2); |
---|
| 159 | DEFINE("GRAD_MIDHOR",3); |
---|
| 160 | DEFINE("GRAD_MIDVER",4); |
---|
| 161 | DEFINE("GRAD_CENTER",5); |
---|
| 162 | DEFINE("GRAD_WIDE_MIDVER",6); |
---|
| 163 | DEFINE("GRAD_WIDE_MIDHOR",7); |
---|
| 164 | |
---|
| 165 | // Inline defines |
---|
| 166 | DEFINE("INLINE_YES",1); |
---|
| 167 | DEFINE("INLINE_NO",0); |
---|
| 168 | |
---|
| 169 | // Format for background images |
---|
| 170 | DEFINE("BGIMG_FILLPLOT",1); |
---|
| 171 | DEFINE("BGIMG_FILLFRAME",2); |
---|
| 172 | DEFINE("BGIMG_COPY",3); |
---|
| 173 | DEFINE("BGIMG_CENTER",4); |
---|
| 174 | |
---|
| 175 | // Depth of objects |
---|
| 176 | DEFINE("DEPTH_BACK",0); |
---|
| 177 | DEFINE("DEPTH_FRONT",1); |
---|
| 178 | |
---|
| 179 | // Direction |
---|
| 180 | DEFINE("VERTICAL",1); |
---|
| 181 | DEFINE("HORIZONTAL",0); |
---|
| 182 | |
---|
| 183 | // Constants for types of static bands in plot area |
---|
| 184 | DEFINE("BAND_RDIAG",1); // Right diagonal lines |
---|
| 185 | DEFINE("BAND_LDIAG",2); // Left diagonal lines |
---|
| 186 | DEFINE("BAND_SOLID",3); // Solid one color |
---|
| 187 | DEFINE("BAND_LVERT",4); // Vertical lines |
---|
| 188 | DEFINE("BAND_LHOR",5); // Horizontal lines |
---|
| 189 | DEFINE("BAND_VLINE",4); // Vertical lines |
---|
| 190 | DEFINE("BAND_HLINE",5); // Horizontal lines |
---|
| 191 | DEFINE("BAND_3DPLANE",6); // "3D" Plane |
---|
| 192 | DEFINE("BAND_HVCROSS",7); // Vertical/Hor crosses |
---|
| 193 | DEFINE("BAND_DIAGCROSS",8); // Diagonal crosses |
---|
| 194 | |
---|
| 195 | |
---|
| 196 | |
---|
| 197 | // |
---|
| 198 | // First of all set up a default error handler |
---|
| 199 | // |
---|
| 200 | |
---|
| 201 | //============================================================= |
---|
| 202 | // The default trivial error handler. |
---|
| 203 | // A production quality error handler should generate an image |
---|
| 204 | // containing the text of the error. |
---|
| 205 | //============================================================= |
---|
| 206 | class JpGraphErrObject { |
---|
| 207 | function JpGraphErrObject() { |
---|
| 208 | // Empty. Reserved for future use |
---|
| 209 | } |
---|
| 210 | |
---|
| 211 | // If aHalt is true then execution can't continue. Typical used for |
---|
| 212 | // fatal errors |
---|
| 213 | function Raise($aMsg,$aHalt=true) { |
---|
| 214 | if( $aHalt ) |
---|
| 215 | die($aMsg); |
---|
| 216 | else |
---|
| 217 | echo $aMsg."<p>"; |
---|
| 218 | } |
---|
| 219 | } |
---|
| 220 | |
---|
| 221 | // |
---|
| 222 | // A wrapper class that is used to access the specified error object |
---|
| 223 | // (to hide the global error parameter and avoid having a GLOBAL directive |
---|
| 224 | // in all methods. |
---|
| 225 | // |
---|
| 226 | class JpGraphError { |
---|
| 227 | function Install($aErrObject) { |
---|
| 228 | GLOBAL $__jpg_err; |
---|
| 229 | $__jpg_err = $aErrObject; |
---|
| 230 | } |
---|
| 231 | function Raise($aMsg,$aHalt=true){ |
---|
| 232 | GLOBAL $__jpg_err; |
---|
| 233 | $tmp = new $__jpg_err; |
---|
| 234 | $tmp->Raise($aMsg,$aHalt); |
---|
| 235 | } |
---|
| 236 | } |
---|
| 237 | |
---|
| 238 | // |
---|
| 239 | // ... and install the default error handler |
---|
| 240 | // |
---|
| 241 | JpGraphError::Install("JpGraphErrObject"); |
---|
| 242 | |
---|
| 243 | // |
---|
| 244 | //Check if there were any warnings, perhaps some wrong includes by the |
---|
| 245 | //user |
---|
| 246 | // |
---|
| 247 | if( isset($GLOBALS['php_errormsg']) ) { |
---|
| 248 | JpGraphError::Raise("<b>General PHP error:</b><br>".$GLOBALS['php_errormsg']); |
---|
| 249 | } |
---|
| 250 | |
---|
| 251 | // |
---|
| 252 | // Check what version of the GD library is being used |
---|
| 253 | // |
---|
| 254 | if(function_exists('imagecopyresampled') ) { |
---|
| 255 | $gd2 = true; |
---|
| 256 | $copyfunc = "imagecopyresampled"; |
---|
| 257 | } elseif(function_exists('imagecopyresized')) { |
---|
| 258 | $copyfunc = "imagecopyresized"; |
---|
| 259 | $gd2 = false; |
---|
| 260 | } |
---|
| 261 | else { |
---|
| 262 | JpGraphError::Raise("<b>JpGraph Error:</b> Your PHP installation does not |
---|
| 263 | have the required GD library. |
---|
| 264 | Please see the PHP documentation on how to install and enable the GD library."); |
---|
| 265 | } |
---|
| 266 | |
---|
| 267 | |
---|
| 268 | // Usefull mathematical function |
---|
| 269 | function sign($a) {if( $a>=0) return 1; else return -1;} |
---|
| 270 | |
---|
| 271 | // Utility function to generate an image name based on the filename we |
---|
| 272 | // are running from AND assuming we use auto detection of graphic format |
---|
| 273 | // (top level), i.e it is safe to call this function |
---|
| 274 | // from a script that uses JpGraph |
---|
| 275 | function GenImgName() { |
---|
| 276 | $supported = imagetypes(); |
---|
| 277 | if( $supported & IMG_PNG ) |
---|
| 278 | $img_format="png"; |
---|
| 279 | elseif( $supported & IMG_GIF ) |
---|
| 280 | $img_format="gif"; |
---|
| 281 | elseif( $supported & IMG_JPG ) |
---|
| 282 | $img_format="jpeg"; |
---|
| 283 | if( !isset($_SERVER['PHP_SELF']) ) |
---|
| 284 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't access PHP_SELF, PHP global variable. You can't run PHP from command line |
---|
| 285 | if you want to use the 'auto' naming of cache or image files."); |
---|
| 286 | $fname=basename($_SERVER['PHP_SELF']); |
---|
| 287 | // Replace the ".php" extension with the image format extension |
---|
| 288 | return substr($fname,0,strlen($fname)-4).".".$img_format; |
---|
| 289 | } |
---|
| 290 | |
---|
| 291 | |
---|
| 292 | class LanguageConv { |
---|
| 293 | |
---|
| 294 | // Translate iso encoding to unicode |
---|
| 295 | function iso2uni ($isoline){ |
---|
| 296 | for ($i=0; $i < strlen($isoline); $i++){ |
---|
| 297 | $thischar=substr($isoline,$i,1); |
---|
| 298 | $charcode=ord($thischar); |
---|
| 299 | $uniline.=($charcode>175) ? "&#" . (1040+($charcode-176)). ";" : $thischar; |
---|
| 300 | } |
---|
| 301 | return $uniline; |
---|
| 302 | } |
---|
| 303 | |
---|
| 304 | function ToCyrillic($aTxt) { |
---|
| 305 | $koistring = $aTxt; |
---|
| 306 | $isostring = convert_cyr_string($koistring, "k", "i"); |
---|
| 307 | $unistring = LanguageConv::iso2uni($isostring); |
---|
| 308 | $this->t = $unistring; |
---|
| 309 | return $aTxt; |
---|
| 310 | } |
---|
| 311 | } |
---|
| 312 | |
---|
| 313 | //=================================================== |
---|
| 314 | // CLASS JpgTimer |
---|
| 315 | // Description: General timing utility class to handle |
---|
| 316 | // timne measurement of generating graphs. Multiple |
---|
| 317 | // timers can be started by pushing new on a stack. |
---|
| 318 | //=================================================== |
---|
| 319 | class JpgTimer { |
---|
| 320 | var $start; |
---|
| 321 | var $idx; |
---|
| 322 | //--------------- |
---|
| 323 | // CONSTRUCTOR |
---|
| 324 | function JpgTimer() { |
---|
| 325 | $this->idx=0; |
---|
| 326 | } |
---|
| 327 | |
---|
| 328 | //--------------- |
---|
| 329 | // PUBLIC METHODS |
---|
| 330 | |
---|
| 331 | // Push a new timer start on stack |
---|
| 332 | function Push() { |
---|
| 333 | list($ms,$s)=explode(" ",microtime()); |
---|
| 334 | $this->start[$this->idx++]=floor($ms*1000) + 1000*$s; |
---|
| 335 | } |
---|
| 336 | |
---|
| 337 | // Pop the latest timer start and return the diff with the |
---|
| 338 | // current time |
---|
| 339 | function Pop() { |
---|
| 340 | assert($this->idx>0); |
---|
| 341 | list($ms,$s)=explode(" ",microtime()); |
---|
| 342 | $etime=floor($ms*1000) + (1000*$s); |
---|
| 343 | $this->idx--; |
---|
| 344 | return $etime-$this->start[$this->idx]; |
---|
| 345 | } |
---|
| 346 | } // Class |
---|
| 347 | |
---|
| 348 | |
---|
| 349 | //=================================================== |
---|
| 350 | // CLASS Graph |
---|
| 351 | // Description: Main class to handle graphs |
---|
| 352 | //=================================================== |
---|
| 353 | class Graph { |
---|
| 354 | var $cache=null; // Cache object (singleton) |
---|
| 355 | var $img=null; // Img object (singleton) |
---|
| 356 | var $plots=array(); // Array of all plot object in the graph (for Y 1 axis) |
---|
| 357 | var $y2plots=array();// Array of all plot object in the graph (for Y 2 axis) |
---|
| 358 | var $xscale=null; // X Scale object (could be instance of LinearScale or LogScale |
---|
| 359 | var $yscale=null,$y2scale=null; |
---|
| 360 | var $cache_name; // File name to be used for the current graph in the cache directory |
---|
| 361 | var $xgrid=null; // X Grid object (linear or logarithmic) |
---|
| 362 | var $ygrid=null,$y2grid=null; //dito for Y |
---|
| 363 | var $doframe=true,$frame_color=array(0,0,0), $frame_weight=1; // Frame around graph |
---|
| 364 | var $boxed=false, $box_color=array(0,0,0), $box_weight=1; // Box around plot area |
---|
| 365 | var $doshadow=false,$shadow_width=4,$shadow_color=array(102,102,102); // Shadow for graph |
---|
| 366 | var $xaxis=null; // X-axis (instane of Axis class) |
---|
| 367 | var $yaxis=null, $y2axis=null; // Y axis (instance of Axis class) |
---|
| 368 | var $margin_color=array(198,198,198); // Margin coor of graph |
---|
| 369 | var $plotarea_color=array(255,255,255); // Plot area color |
---|
| 370 | var $title,$subtitle; // Title and subtitle text object |
---|
| 371 | var $axtype="linlin"; // Type of axis |
---|
| 372 | var $xtick_factor; // Factot to determine the maximum number of ticks depending on the plot with |
---|
| 373 | var $texts=null; // Text object to ge shown in the graph |
---|
| 374 | var $lines=null; |
---|
| 375 | var $bands=null; |
---|
| 376 | var $text_scale_off=0; // Text scale offset in world coordinates |
---|
| 377 | var $background_image="",$background_image_type=-1,$background_image_format="png"; |
---|
| 378 | var $background_image_bright=0,$background_image_contr=0,$background_image_sat=0; |
---|
| 379 | var $image_bright=0, $image_contr=0, $image_sat=0; |
---|
| 380 | var $inline; |
---|
| 381 | var $showcsim=0,$csimcolor="red"; //debug stuff, draw the csim boundaris on the image if <>0 |
---|
| 382 | var $grid_depth=DEPTH_BACK; // Draw grid under all plots as default |
---|
| 383 | //--------------- |
---|
| 384 | // CONSTRUCTOR |
---|
| 385 | |
---|
| 386 | // aWIdth Width in pixels of image |
---|
| 387 | // aHeight Height in pixels of image |
---|
| 388 | // aCachedName Name for image file in cache directory |
---|
| 389 | // aTimeOut Timeout in minutes for image in cache |
---|
| 390 | // aInline If true the image is streamed back in the call to Stroke() |
---|
| 391 | // If false the image is just created in the cache |
---|
| 392 | function Graph($aWidth=300,$aHeight=200,$aCachedName="",$aTimeOut=0,$aInline=true) { |
---|
| 393 | |
---|
| 394 | // If timing is used create a new timing object |
---|
| 395 | if( BRAND_TIMING ) { |
---|
| 396 | global $tim; |
---|
| 397 | $tim = new JpgTimer(); |
---|
| 398 | $tim->Push(); |
---|
| 399 | } |
---|
| 400 | |
---|
| 401 | // Automtically generate the image file name based on the name of the script that |
---|
| 402 | // generates the graph |
---|
| 403 | if( $aCachedName=="auto" ) |
---|
| 404 | $aCachedName=GenImgName(); |
---|
| 405 | |
---|
| 406 | // Should the image be streamed back to the browser or only to the cache? |
---|
| 407 | $this->inline=$aInline; |
---|
| 408 | |
---|
| 409 | $this->img = new RotImage($aWidth,$aHeight); |
---|
| 410 | $this->cache = new ImgStreamCache($this->img); |
---|
| 411 | $this->cache->SetTimeOut($aTimeOut); |
---|
| 412 | $this->title = new Text(); |
---|
| 413 | $this->subtitle = new Text(); |
---|
| 414 | $this->legend = new Legend(); |
---|
| 415 | |
---|
| 416 | // If the cached version exist just read it directly from the |
---|
| 417 | // cache, stream it back to browser and exit |
---|
| 418 | if( $aCachedName!="" && READ_CACHE && $aInline ) |
---|
| 419 | if( $this->cache->GetAndStream($aCachedName) ) { |
---|
| 420 | exit(); |
---|
| 421 | } |
---|
| 422 | |
---|
| 423 | $this->cache_name = $aCachedName; |
---|
| 424 | $this->SetTickDensity(); // Normal density |
---|
| 425 | } |
---|
| 426 | //--------------- |
---|
| 427 | // PUBLIC METHODS |
---|
| 428 | |
---|
| 429 | // Should the grid be in front or back of the plot? |
---|
| 430 | function SetGridDepth($aDepth) { |
---|
| 431 | $this->grid_depth=$aDepth; |
---|
| 432 | } |
---|
| 433 | |
---|
| 434 | // Specify graph angle 0-360 degrees. |
---|
| 435 | function SetAngle($aAngle) { |
---|
| 436 | $this->img->SetAngle($aAngle); |
---|
| 437 | } |
---|
| 438 | |
---|
| 439 | // Add a plot object to the graph |
---|
| 440 | function Add(&$aPlot) { |
---|
| 441 | if( $aPlot == null ) |
---|
| 442 | JpGraphError::Raise("<b><b>JpGraph Error:</b></b> Graph::Add() You tried to add a null plot to the graph."); |
---|
| 443 | $this->plots[] = &$aPlot; |
---|
| 444 | } |
---|
| 445 | |
---|
| 446 | // Add plot to second Y-scale |
---|
| 447 | function AddY2(&$aPlot) { |
---|
| 448 | if( $aPlot == null ) |
---|
| 449 | JpGraphError::Raise("<b><b>JpGraph Error:</b></b> Graph::AddY2() You tried to add a null plot to the graph."); |
---|
| 450 | $this->y2plots[] = &$aPlot; |
---|
| 451 | } |
---|
| 452 | |
---|
| 453 | // Add text object to the graph |
---|
| 454 | function AddText(&$aTxt) { |
---|
| 455 | if( $aTxt == null ) |
---|
| 456 | JpGraphError::Raise("<b><b>JpGraph Error:</b></b> Graph::AddText() You tried to add a null text to the graph."); |
---|
| 457 | if( is_array($aTxt) ) { |
---|
| 458 | for($i=0; $i<count($aTxt); ++$i ) |
---|
| 459 | $this->texts[]=&$aTxt[$i]; |
---|
| 460 | } |
---|
| 461 | else |
---|
| 462 | $this->texts[] = &$aTxt; |
---|
| 463 | } |
---|
| 464 | |
---|
| 465 | // Add a line object (class PlotLine) to the graph |
---|
| 466 | function AddLine(&$aLine) { |
---|
| 467 | if( $aLine == null ) |
---|
| 468 | JpGraphError::Raise("<b><b>JpGraph Error:</b></b> Graph::AddLine() You tried to add a null line to the graph."); |
---|
| 469 | if( is_array($aLine) ) { |
---|
| 470 | for($i=0; $i<count($aLine); ++$i ) |
---|
| 471 | $this->lines[]=&$aLine[$i]; |
---|
| 472 | } |
---|
| 473 | else |
---|
| 474 | $this->lines[] = &$aLine; |
---|
| 475 | } |
---|
| 476 | |
---|
| 477 | // Add vertical or horizontal band |
---|
| 478 | function AddBand(&$aBand) { |
---|
| 479 | if( $aBand == null ) |
---|
| 480 | JpGraphError::Raise("<b>JpGraph Error:</b> Graph::AddBand() You tried to add a null band to the graph."); |
---|
| 481 | if( is_array($aBand) ) { |
---|
| 482 | for($i=0; $i<count($aBand); ++$i ) |
---|
| 483 | $this->bands[] = &$aBand[$i]; |
---|
| 484 | } |
---|
| 485 | else |
---|
| 486 | $this->bands[] = &$aBand; |
---|
| 487 | } |
---|
| 488 | |
---|
| 489 | |
---|
| 490 | // Specify a background image |
---|
| 491 | function SetBackgroundImage($aFileName,$aBgType=BKIMG_FILLPLOT,$aImgFormat="png") { |
---|
| 492 | |
---|
| 493 | if( $GLOBALS["gd2"] && !USE_TRUECOLOR ) { |
---|
| 494 | JpGraphError::Raise("<b>JpGraph Error:</b>You are using GD 2.x and are |
---|
| 495 | trying to use a background images on a non truecolor image. <br> |
---|
| 496 | To use |
---|
| 497 | background images with GD 2.x you <b>must</b> enable truecolor by setting the |
---|
| 498 | USE_TRUECOLOR constant to TRUE. <br> |
---|
| 499 | <b>Note:</b> Due to a bug in GD 2.0.1 |
---|
| 500 | using any truetype fonts with truecolor images will result in very |
---|
| 501 | poor quality fonts."); |
---|
| 502 | } |
---|
| 503 | |
---|
| 504 | $this->background_image = $aFileName; |
---|
| 505 | $this->background_image_type=$aBgType; |
---|
| 506 | $this->background_image_format=$aImgFormat; |
---|
| 507 | } |
---|
| 508 | |
---|
| 509 | // Adjust brightness and constrast for background image |
---|
| 510 | function AdjBackgroundImage($aBright,$aContr=0,$aSat=0) { |
---|
| 511 | $this->background_image_bright=$aBright; |
---|
| 512 | $this->background_image_contr=$aContr; |
---|
| 513 | $this->background_image_sat=$aSat; |
---|
| 514 | } |
---|
| 515 | |
---|
| 516 | // Adjust brightness and constrast for image |
---|
| 517 | function AdjImage($aBright,$aContr=0,$aSat=0) { |
---|
| 518 | $this->image_bright=$aBright; |
---|
| 519 | $this->image_contr=$aContr; |
---|
| 520 | $this->image_sat=$aSat; |
---|
| 521 | } |
---|
| 522 | |
---|
| 523 | // Set a frame around the plot area |
---|
| 524 | function SetBox($aDrawPlotFrame=true,$aPlotFrameColor=array(0,0,0),$aPlotFrameWeight=1) { |
---|
| 525 | $this->boxed = $aDrawPlotFrame; |
---|
| 526 | $this->box_weight = $aPlotFrameWeight; |
---|
| 527 | $this->box_color = $aPlotFrameColor; |
---|
| 528 | } |
---|
| 529 | |
---|
| 530 | // Specify color for the plotarea (not the margins) |
---|
| 531 | function SetColor($aColor) { |
---|
| 532 | $this->plotarea_color=$aColor; |
---|
| 533 | } |
---|
| 534 | |
---|
| 535 | // Specify color for the margins (all areas outside the plotarea) |
---|
| 536 | function SetMarginColor($aColor) { |
---|
| 537 | $this->margin_color=$aColor; |
---|
| 538 | } |
---|
| 539 | |
---|
| 540 | // Set a frame around the entire image |
---|
| 541 | function SetFrame($aDrawImgFrame=true,$aImgFrameColor=array(0,0,0),$aImgFrameWeight=1) { |
---|
| 542 | $this->doframe = $aDrawImgFrame; |
---|
| 543 | $this->frame_color = $aImgFrameColor; |
---|
| 544 | $this->frame_weight = $aImgFrameWeight; |
---|
| 545 | } |
---|
| 546 | |
---|
| 547 | // Set the shadow around the whole image |
---|
| 548 | function SetShadow($aShowShadow=true,$aShadowWidth=5,$aShadowColor=array(102,102,102)) { |
---|
| 549 | $this->doshadow = $aShowShadow; |
---|
| 550 | $this->shadow_color = $aShadowColor; |
---|
| 551 | $this->shadow_width = $aShadowWidth; |
---|
| 552 | } |
---|
| 553 | |
---|
| 554 | // Specify x,y scale. Note that if you manually specify the scale |
---|
| 555 | // you must also specify the tick distance with a call to Ticks::Set() |
---|
| 556 | function SetScale($aAxisType,$aYMin=1,$aYMax=1,$aXMin=1,$aXMax=1) { |
---|
| 557 | $this->axtype = $aAxisType; |
---|
| 558 | |
---|
| 559 | $yt=substr($aAxisType,-3,3); |
---|
| 560 | if( $yt=="lin" ) |
---|
| 561 | $this->yscale = new LinearScale($aYMin,$aYMax); |
---|
| 562 | elseif( $yt == "int" ) { |
---|
| 563 | $this->yscale = new LinearScale($aYMin,$aYMax); |
---|
| 564 | $this->yscale->SetIntScale(); |
---|
| 565 | } |
---|
| 566 | elseif( $yt=="log" ) |
---|
| 567 | $this->yscale = new LogScale($aYMin,$aYMax); |
---|
| 568 | else |
---|
| 569 | JpGraphError::Raise("<b>JpGraph Error:</b> Unknown scale specification for Y-scale. ($axtype)"); |
---|
| 570 | |
---|
| 571 | $xt=substr($aAxisType,0,3); |
---|
| 572 | if( $xt == "lin" || $xt == "tex" ) |
---|
| 573 | $this->xscale = new LinearScale($aXMin,$aXMax,"x"); |
---|
| 574 | elseif( $xt == "int" ) { |
---|
| 575 | $this->xscale = new LinearScale($aXMin,$aXMax,"x"); |
---|
| 576 | $this->xscale->SetIntScale(); |
---|
| 577 | } |
---|
| 578 | elseif( $xt == "log" ) |
---|
| 579 | $this->xscale = new LogScale($aXMin,$aXMax,"x"); |
---|
| 580 | else |
---|
| 581 | JpGraphError::Raise("<b>JpGraph Error:</b> Unknown scale specification for X-scale. ($aAxisType)"); |
---|
| 582 | |
---|
| 583 | $this->xscale->Init($this->img); |
---|
| 584 | $this->yscale->Init($this->img); |
---|
| 585 | |
---|
| 586 | $this->xaxis = new Axis($this->img,$this->xscale); |
---|
| 587 | $this->yaxis = new Axis($this->img,$this->yscale); |
---|
| 588 | $this->xgrid = new Grid($this->xaxis); |
---|
| 589 | $this->ygrid = new Grid($this->yaxis); |
---|
| 590 | $this->ygrid->Show(); |
---|
| 591 | } |
---|
| 592 | |
---|
| 593 | // Specify secondary Y scale |
---|
| 594 | function SetY2Scale($aAxisType="lin",$aY2Min=1,$aY2Max=1) { |
---|
| 595 | if( $aAxisType=="lin" ) |
---|
| 596 | $this->y2scale = new LinearScale($aY2Min,$aY2Max); |
---|
| 597 | elseif( $aAxisType=="log" ) { |
---|
| 598 | $this->y2scale = new LogScale($aY2Min,$aY2Max); |
---|
| 599 | } |
---|
| 600 | else JpGraphError::Raise("JpGraph: Unsupported Y2 axis type: $axtype<br>"); |
---|
| 601 | |
---|
| 602 | $this->y2scale->Init($this->img); |
---|
| 603 | $this->y2axis = new Axis($this->img,$this->y2scale); |
---|
| 604 | $this->y2axis->scale->ticks->SetDirection(SIDE_LEFT); |
---|
| 605 | $this->y2axis->SetLabelPos(SIDE_RIGHT); |
---|
| 606 | |
---|
| 607 | // Deafult position is the max x-value |
---|
| 608 | $this->y2axis->SetPos($this->xscale->GetMaxVal()); |
---|
| 609 | $this->y2grid = new Grid($this->y2axis); |
---|
| 610 | } |
---|
| 611 | |
---|
| 612 | // Specify density of ticks when autoscaling 'normal', 'dense', 'sparse', 'verysparse' |
---|
| 613 | // The dividing factor have been determined heuristically according to my aesthetic |
---|
| 614 | // sense (or lack off) y.m.m.v ! |
---|
| 615 | function SetTickDensity($aYDensity=TICKD_NORMAL,$aXDensity=TICKD_NORMAL) { |
---|
| 616 | $this->xtick_factor=30; |
---|
| 617 | $this->ytick_factor=25; |
---|
| 618 | switch( $aYDensity ) { |
---|
| 619 | case TICKD_DENSE: |
---|
| 620 | $this->ytick_factor=12; |
---|
| 621 | break; |
---|
| 622 | case TICKD_NORMAL: |
---|
| 623 | $this->ytick_factor=25; |
---|
| 624 | break; |
---|
| 625 | case TICKD_SPARSE: |
---|
| 626 | $this->ytick_factor=40; |
---|
| 627 | break; |
---|
| 628 | case TICKD_VERYSPARSE: |
---|
| 629 | $this->ytick_factor=100; |
---|
| 630 | break; |
---|
| 631 | default: |
---|
| 632 | JpGraphError::Raise("JpGraph: Unsupported Tick density: $densy"); |
---|
| 633 | } |
---|
| 634 | switch( $aXDensity ) { |
---|
| 635 | case TICKD_DENSE: |
---|
| 636 | $this->xtick_factor=18; |
---|
| 637 | break; |
---|
| 638 | case TICKD_NORMAL: |
---|
| 639 | $this->xtick_factor=30; |
---|
| 640 | break; |
---|
| 641 | case TICKD_SPARSE: |
---|
| 642 | $this->xtick_factor=45; |
---|
| 643 | break; |
---|
| 644 | case TICKD_VERYSPARSE: |
---|
| 645 | $this->xtick_factor=60; |
---|
| 646 | break; |
---|
| 647 | default: |
---|
| 648 | JpGraphError::Raise("JpGraph: Unsupported Tick density: $densx"); |
---|
| 649 | } |
---|
| 650 | } |
---|
| 651 | |
---|
| 652 | // Get a string of all image map areas |
---|
| 653 | function GetCSIMareas() { |
---|
| 654 | $csim=""; |
---|
| 655 | foreach ($this->plots as $p) { |
---|
| 656 | $csim.= $p->GetCSIMareas(); |
---|
| 657 | } |
---|
| 658 | return $csim; |
---|
| 659 | } |
---|
| 660 | |
---|
| 661 | // Get a complete <MAP>..</MAP> tag for the final image map |
---|
| 662 | function GetHTMLImageMap($aMapName) { |
---|
| 663 | $im = "<MAP NAME=\"$aMapName\">\n"; |
---|
| 664 | $im .= $this->GetCSIMareas(); |
---|
| 665 | $im .= "</MAP>"; |
---|
| 666 | return $im; |
---|
| 667 | } |
---|
| 668 | |
---|
| 669 | // Stroke the graph |
---|
| 670 | // $aStrokeFileName If != "" the image will be written to this file and NOT |
---|
| 671 | // streamed back to the browser |
---|
| 672 | function Stroke($aStrokeFileName="") { |
---|
| 673 | |
---|
| 674 | // Do any pre-stroke adjustment that is needed by the different plot types |
---|
| 675 | // (i.e bar plots want's to add an offset to the x-labels etc) |
---|
| 676 | for($i=0; $i<count($this->plots) ; ++$i ) { |
---|
| 677 | $this->plots[$i]->PreStrokeAdjust($this); |
---|
| 678 | $this->plots[$i]->Legend($this); |
---|
| 679 | } |
---|
| 680 | |
---|
| 681 | // Any plots on the second Y scale? |
---|
| 682 | if( $this->y2scale != null ) { |
---|
| 683 | for($i=0; $i<count($this->y2plots) ; ++$i ) { |
---|
| 684 | $this->y2plots[$i]->PreStrokeAdjust($this); |
---|
| 685 | $this->y2plots[$i]->Legend($this); |
---|
| 686 | } |
---|
| 687 | } |
---|
| 688 | |
---|
| 689 | // Bail out if any of the Y-axis not been specified and |
---|
| 690 | // has no plots. (This means it is impossible to do autoscaling and |
---|
| 691 | // no other scale was given so we can't possible draw anything). If you use manual |
---|
| 692 | // scaling you also have to supply the tick steps as well. |
---|
| 693 | if( (!$this->yscale->IsSpecified() && count($this->plots)==0) || |
---|
| 694 | ($this->y2scale!=null && !$this->y2scale->IsSpecified() && count($this->y2plots)==0) ) { |
---|
| 695 | JpGraphError::Raise("<strong>JpGraph: Can't draw unspecified Y-scale.</strong><br> |
---|
| 696 | You have either: |
---|
| 697 | <br>* Specified an Y axis for autoscaling but have not supplied any plots |
---|
| 698 | <br>* Specified a scale manually but have forgot to specify the tick steps"); |
---|
| 699 | } |
---|
| 700 | |
---|
| 701 | // Bail out if no plots and no specified X-scale |
---|
| 702 | if( (!$this->xscale->IsSpecified() && count($this->plots)==0 && count($this->y2plots)==0) ) |
---|
| 703 | JpGraphError::Raise("<strong>JpGraph: Can't draw unspecified X-scale.</strong><br>No plots.<br>"); |
---|
| 704 | |
---|
| 705 | //Check if we should autoscale y-axis |
---|
| 706 | if( !$this->yscale->IsSpecified() && count($this->plots)>0 ) { |
---|
| 707 | list($min,$max) = $this->GetPlotsYMinMax($this->plots); |
---|
| 708 | $this->yscale->AutoScale($this->img,$min,$max,$this->img->plotheight/$this->ytick_factor); |
---|
| 709 | } |
---|
| 710 | |
---|
| 711 | if( $this->y2scale != null) |
---|
| 712 | if( !$this->y2scale->IsSpecified() && count($this->y2plots)>0 ) { |
---|
| 713 | list($min,$max) = $this->GetPlotsYMinMax($this->y2plots); |
---|
| 714 | $this->y2scale->AutoScale($this->img,$min,$max,$this->img->plotheight/$this->ytick_factor); |
---|
| 715 | } |
---|
| 716 | |
---|
| 717 | //Check if we should autoscale x-axis |
---|
| 718 | if( !$this->xscale->IsSpecified() ) { |
---|
| 719 | if( substr($this->axtype,0,4) == "text" ) { |
---|
| 720 | $max=0; |
---|
| 721 | foreach( $this->plots as $p ) |
---|
| 722 | $max=max($max,$p->numpoints-1); |
---|
| 723 | $min=0; |
---|
| 724 | $this->xscale->Update($this->img,$min,$max); |
---|
| 725 | $this->xscale->ticks->Set($this->xaxis->tick_step,1); |
---|
| 726 | $this->xscale->ticks->SupressMinorTickMarks(); |
---|
| 727 | } |
---|
| 728 | else { |
---|
| 729 | list($min,$ymin) = $this->plots[0]->Min(); |
---|
| 730 | list($max,$ymax) = $this->plots[0]->Max(); |
---|
| 731 | foreach( $this->plots as $p ) { |
---|
| 732 | list($xmin,$ymin) = $p->Min(); |
---|
| 733 | list($xmax,$ymax) = $p->Max(); |
---|
| 734 | $min = Min($xmin,$min); |
---|
| 735 | $max = Max($xmax,$max); |
---|
| 736 | } |
---|
| 737 | $this->xscale->AutoScale($this->img,$min,$max,$this->img->plotwidth/$this->xtick_factor); |
---|
| 738 | } |
---|
| 739 | |
---|
| 740 | //Adjust position of y-axis and y2-axis to minimum/maximum of x-scale |
---|
| 741 | $this->yaxis->SetPos($this->xscale->GetMinVal()); |
---|
| 742 | if( $this->y2axis != null ) { |
---|
| 743 | $this->y2axis->SetPos($this->xscale->GetMaxVal()); |
---|
| 744 | $this->y2axis->SetTitleSide(SIDE_RIGHT); |
---|
| 745 | } |
---|
| 746 | } |
---|
| 747 | |
---|
| 748 | // If we have a negative values and x-axis position is at 0 |
---|
| 749 | // we need to supress the first and possible the last tick since |
---|
| 750 | // they will be drawn on top of the y-axis (and possible y2 axis) |
---|
| 751 | // The test below might seem strange the reasone being that if |
---|
| 752 | // the user hasn't specified a value for position this will not |
---|
| 753 | // be set until we do the stroke for the axis so as of now it |
---|
| 754 | // is undefined. |
---|
| 755 | |
---|
| 756 | if( !$this->xaxis->pos && $this->yscale->GetMinVal() < 0 ) { |
---|
| 757 | $this->yscale->ticks->SupressZeroLabel(false); |
---|
| 758 | $this->xscale->ticks->SupressFirst(); |
---|
| 759 | if( $this->y2axis != null ) { |
---|
| 760 | $this->xscale->ticks->SupressLast(); |
---|
| 761 | } |
---|
| 762 | } |
---|
| 763 | |
---|
| 764 | $this->StrokePlotArea(); |
---|
| 765 | |
---|
| 766 | // Stroke axis |
---|
| 767 | $this->xaxis->Stroke($this->yscale); |
---|
| 768 | $this->yaxis->Stroke($this->xscale); |
---|
| 769 | |
---|
| 770 | // Stroke bands |
---|
| 771 | if( $this->bands != null ) |
---|
| 772 | for($i=0; $i<count($this->bands); ++$i) { |
---|
| 773 | // Stroke all bands that asks to be in the background |
---|
| 774 | if( $this->bands[$i]->depth == DEPTH_BACK ) |
---|
| 775 | $this->bands[$i]->Stroke($this->img,$this->xscale,$this->yscale); |
---|
| 776 | } |
---|
| 777 | |
---|
| 778 | if( $this->grid_depth == DEPTH_BACK ) { |
---|
| 779 | $this->ygrid->Stroke(); |
---|
| 780 | $this->xgrid->Stroke(); |
---|
| 781 | } |
---|
| 782 | |
---|
| 783 | // Stroke Y2-axis |
---|
| 784 | if( $this->y2axis != null ) { |
---|
| 785 | $this->y2axis->Stroke($this->xscale); |
---|
| 786 | $this->y2grid->Stroke(); |
---|
| 787 | } |
---|
| 788 | |
---|
| 789 | $oldoff=$this->xscale->off; |
---|
| 790 | if(substr($this->axtype,0,4)=="text") { |
---|
| 791 | $this->xscale->off += |
---|
| 792 | ceil($this->xscale->scale_factor*$this->text_scale_off*$this->xscale->ticks->minor_step); |
---|
| 793 | } |
---|
| 794 | |
---|
| 795 | // Stroke all plots for Y1 axis |
---|
| 796 | for($i=0; $i<count($this->plots) ; ++$i ) { |
---|
| 797 | $this->plots[$i]->Stroke($this->img,$this->xscale,$this->yscale); |
---|
| 798 | $this->plots[$i]->StrokeMargin($this->img); |
---|
| 799 | } |
---|
| 800 | |
---|
| 801 | // Stroke all plots for Y2 axis |
---|
| 802 | if( $this->y2scale != null ) |
---|
| 803 | for($i=0; $i< count($this->y2plots); ++$i ) { |
---|
| 804 | $this->y2plots[$i]->Stroke($this->img,$this->xscale,$this->y2scale); |
---|
| 805 | } |
---|
| 806 | |
---|
| 807 | $this->xscale->off=$oldoff; |
---|
| 808 | |
---|
| 809 | if( $this->grid_depth == DEPTH_FRONT ) { |
---|
| 810 | $this->ygrid->Stroke(); |
---|
| 811 | $this->xgrid->Stroke(); |
---|
| 812 | } |
---|
| 813 | |
---|
| 814 | // Stroke bands |
---|
| 815 | if( $this->bands!= null ) |
---|
| 816 | for($i=0; $i<count($this->bands); ++$i) { |
---|
| 817 | // Stroke all bands that asks to be in the foreground |
---|
| 818 | if( $this->bands[$i]->depth == DEPTH_FRONT ) |
---|
| 819 | $this->bands[$i]->Stroke($this->img,$this->xscale,$this->yscale); |
---|
| 820 | } |
---|
| 821 | |
---|
| 822 | // Stroke any lines added |
---|
| 823 | if( $this->lines != null ) { |
---|
| 824 | for($i=0; $i<count($this->lines); ++$i) { |
---|
| 825 | $this->lines[$i]->Stroke($this->img,$this->xscale,$this->yscale); |
---|
| 826 | } |
---|
| 827 | } |
---|
| 828 | |
---|
| 829 | // Finally draw the axis again since some plots may have nagged |
---|
| 830 | // the axis in the edges. |
---|
| 831 | $this->yaxis->Stroke($this->xscale); |
---|
| 832 | $this->xaxis->Stroke($this->yscale); |
---|
| 833 | |
---|
| 834 | if( $this->y2scale != null) |
---|
| 835 | $this->y2axis->Stroke($this->xscale); |
---|
| 836 | |
---|
| 837 | $this->StrokePlotBox(); |
---|
| 838 | |
---|
| 839 | // The titles and legends never gets rotated so make sure |
---|
| 840 | // that the angle is 0 before stroking them |
---|
| 841 | $aa = $this->img->SetAngle(0); |
---|
| 842 | $this->StrokeTitles(); |
---|
| 843 | $this->legend->Stroke($this->img); |
---|
| 844 | $this->StrokeTexts(); |
---|
| 845 | $this->img->SetAngle($aa); |
---|
| 846 | |
---|
| 847 | // Draw an outline around the image map |
---|
| 848 | if(JPG_DEBUG) |
---|
| 849 | $this->DisplayClientSideaImageMapAreas(); |
---|
| 850 | |
---|
| 851 | // Adjust the appearance of the image |
---|
| 852 | $this->AdjustSaturationBrightnessContrast(); |
---|
| 853 | |
---|
| 854 | // Finally stream the generated picture |
---|
| 855 | $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName); |
---|
| 856 | } |
---|
| 857 | |
---|
| 858 | //--------------- |
---|
| 859 | // PRIVATE METHODS |
---|
| 860 | // Private helper function for backgound image |
---|
| 861 | function LoadBkgImage($aImgFormat="png",$aBright=0,$aContr=0) { |
---|
| 862 | $f = "imagecreatefrom".$aImgFormat; |
---|
| 863 | $imgtag = $aImgFormat; |
---|
| 864 | if( $aImgFormat == "jpeg" ) |
---|
| 865 | $imgtag = "jpg"; |
---|
| 866 | if( !strstr($this->background_image,$imgtag) && strstr($this->background_image,".") ) |
---|
| 867 | JpGraphError::Raise("<b>JpGraph Error:</b> Background image seems to be of different type (has different file extension) |
---|
| 868 | than specified imagetype. <br>Specified: '".$aImgFormat."'<br>File: '".$this->background_image."'"); |
---|
| 869 | $img = $f($this->background_image); |
---|
| 870 | if( !$img ) { |
---|
| 871 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't read background image: '".$this->background_image."'"); |
---|
| 872 | } |
---|
| 873 | return $img; |
---|
| 874 | } |
---|
| 875 | |
---|
| 876 | // Private |
---|
| 877 | // Stroke the plot area with either a solid color or a background image |
---|
| 878 | function StrokePlotArea() { |
---|
| 879 | // Copy in background image |
---|
| 880 | if( $this->background_image != "" ) { |
---|
| 881 | $bkgimg = $this->LoadBkgImage($this->background_image_format); |
---|
| 882 | $this->img->_AdjBrightContrast($bkgimg,$this->background_image_bright, |
---|
| 883 | $this->background_image_contr); |
---|
| 884 | $this->img->_AdjSat($bkgimg,$this->background_image_sat); |
---|
| 885 | $bw = ImageSX($bkgimg); |
---|
| 886 | $bh = ImageSY($bkgimg); |
---|
| 887 | |
---|
| 888 | $aa = $this->img->SetAngle(0); |
---|
| 889 | |
---|
| 890 | switch( $this->background_image_type ) { |
---|
| 891 | case BGIMG_FILLPLOT: // Resize to just fill the plotarea |
---|
| 892 | $this->StrokeFrame(); |
---|
| 893 | $GLOBALS["copyfunc"]($this->img->img,$bkgimg, |
---|
| 894 | $this->img->left_margin,$this->img->top_margin, |
---|
| 895 | 0,0,$this->img->plotwidth,$this->img->plotheight, |
---|
| 896 | $bw,$bh); |
---|
| 897 | break; |
---|
| 898 | case BGIMG_FILLFRAME: // Fill the whole area from upper left corner, resize to just fit |
---|
| 899 | $GLOBALS["copyfunc"]($this->img->img,$bkgimg, |
---|
| 900 | 0,0,0,0, |
---|
| 901 | $this->img->width,$this->img->height, |
---|
| 902 | $bw,$bh); |
---|
| 903 | $this->StrokeFrame(); |
---|
| 904 | break; |
---|
| 905 | case BGIMG_COPY: // Just copy the image from left corner, no resizing |
---|
| 906 | $GLOBALS["copyfunc"]($this->img->img,$bkgimg, |
---|
| 907 | 0,0,0,0, |
---|
| 908 | $bw,$bh, |
---|
| 909 | $bw,$bh); |
---|
| 910 | $this->StrokeFrame(); |
---|
| 911 | break; |
---|
| 912 | case BGIMG_CENTER: // Center original image in the plot area |
---|
| 913 | $centerx = round($this->img->plotwidth/2+$this->img->left_margin-$bw/2); |
---|
| 914 | $centery = round($this->img->plotheight/2+$this->img->top_margin-$bh/2); |
---|
| 915 | $GLOBALS["copyfunc"]($this->img->img,$bkgimg, |
---|
| 916 | $centerx,$centery, |
---|
| 917 | 0,0, |
---|
| 918 | $bw,$bh, |
---|
| 919 | $bw,$bh); |
---|
| 920 | $this->StrokeFrame(); |
---|
| 921 | break; |
---|
| 922 | default: |
---|
| 923 | JpGraphError::Raise("<b>JpGraph Error:</b> Unknown background image layout"); |
---|
| 924 | } |
---|
| 925 | $this->img->SetAngle($aa); |
---|
| 926 | } |
---|
| 927 | else { |
---|
| 928 | $aa = $this->img->SetAngle(0); |
---|
| 929 | $this->StrokeFrame(); |
---|
| 930 | $this->img->SetAngle($aa); |
---|
| 931 | |
---|
| 932 | $this->img->PushColor($this->plotarea_color); |
---|
| 933 | |
---|
| 934 | // Note: To be consistent we really should take a possible shadow |
---|
| 935 | // into account. However, that causes some problem for the LinearScale class |
---|
| 936 | // since in the current design it does not have any links to class Graph which |
---|
| 937 | // means it has no way of compensating for the adjusted plotarea in case of a |
---|
| 938 | // shadow. So, until I redesign LinearScale we can't compensate for this. |
---|
| 939 | // So just set the two adjustment parameters to zero for now. |
---|
| 940 | $boxadj = 0; //$this->doframe ? $this->frame_weight : 0 ; |
---|
| 941 | $adj = 0; //$this->doshadow ? $this->shadow_width : 0 ; |
---|
| 942 | |
---|
| 943 | $this->img->FilledRectangle($this->img->left_margin+$boxadj, |
---|
| 944 | $this->img->top_margin+$boxadj, |
---|
| 945 | $this->img->width-$this->img->right_margin-$adj-2*$boxadj, |
---|
| 946 | $this->img->height-$this->img->bottom_margin-$adj-2*$boxadj); |
---|
| 947 | |
---|
| 948 | $this->img->PopColor(); |
---|
| 949 | } |
---|
| 950 | $this->img->SetAngle($aa); |
---|
| 951 | } |
---|
| 952 | |
---|
| 953 | |
---|
| 954 | function StrokePlotBox() { |
---|
| 955 | // Should we draw a box around the plot area? |
---|
| 956 | if( $this->boxed ) { |
---|
| 957 | $this->img->SetLineWeight($this->box_weight); |
---|
| 958 | $this->img->SetColor($this->box_color); |
---|
| 959 | $this->img->Rectangle( |
---|
| 960 | $this->img->left_margin,$this->img->top_margin, |
---|
| 961 | $this->img->width-$this->img->right_margin, |
---|
| 962 | $this->img->height-$this->img->bottom_margin); |
---|
| 963 | } |
---|
| 964 | } |
---|
| 965 | |
---|
| 966 | function StrokeTitles() { |
---|
| 967 | // Stroke title |
---|
| 968 | $this->title->Center($this->img->left_margin,$this->img->width-$this->img->right_margin,5); |
---|
| 969 | $this->title->Stroke($this->img); |
---|
| 970 | |
---|
| 971 | // ... and subtitle |
---|
| 972 | $this->subtitle->Center($this->img->left_margin,$this->img->width-$this->img->right_margin, |
---|
| 973 | 7+$this->title->GetFontHeight($this->img)); |
---|
| 974 | $this->subtitle->Stroke($this->img); |
---|
| 975 | } |
---|
| 976 | |
---|
| 977 | function StrokeTexts() { |
---|
| 978 | // Stroke any user added text objects |
---|
| 979 | if( $this->texts != null ) { |
---|
| 980 | for($i=0; $i<count($this->texts); ++$i) { |
---|
| 981 | $this->texts[$i]->Stroke($this->img); |
---|
| 982 | } |
---|
| 983 | } |
---|
| 984 | } |
---|
| 985 | |
---|
| 986 | function DisplayClientSideaImageMapAreas() { |
---|
| 987 | // Debug stuff - display the outline of the image map areas |
---|
| 988 | foreach ($this->plots as $p) { |
---|
| 989 | $csim.= $p->GetCSIMareas(); |
---|
| 990 | } |
---|
| 991 | $csim.= $this->legend->GetCSIMareas(); |
---|
| 992 | if (preg_match_all("/area shape=\"(\w+)\" coords=\"([0-9\, ]+)\"/", $csim, $coords)) { |
---|
| 993 | $this->img->SetColor($this->csimcolor); |
---|
| 994 | for ($i=0; $i<count($coords[0]); $i++) { |
---|
| 995 | if ($coords[1][$i]=="poly") { |
---|
| 996 | preg_match_all('/\s*([0-9]+)\s*,\s*([0-9]+)\s*,*/',$coords[2][$i],$pts); |
---|
| 997 | $this->img->SetStartPoint($pts[1][count($pts[0])-1],$pts[2][count($pts[0])-1]); |
---|
| 998 | for ($j=0; $j<count($pts[0]); $j++) { |
---|
| 999 | $this->img->LineTo($pts[1][$j],$pts[2][$j]); |
---|
| 1000 | } |
---|
| 1001 | } else if ($coords[1][$i]=="rect") { |
---|
| 1002 | $pts = preg_split('/,/', $coords[2][$i]); |
---|
| 1003 | $this->img->SetStartPoint($pts[0],$pts[1]); |
---|
| 1004 | $this->img->LineTo($pts[2],$pts[1]); |
---|
| 1005 | $this->img->LineTo($pts[2],$pts[3]); |
---|
| 1006 | $this->img->LineTo($pts[0],$pts[3]); |
---|
| 1007 | $this->img->LineTo($pts[0],$pts[1]); |
---|
| 1008 | } |
---|
| 1009 | } |
---|
| 1010 | } |
---|
| 1011 | } |
---|
| 1012 | |
---|
| 1013 | function AdjustSaturationBrightnessContrast() { |
---|
| 1014 | // Adjust the brightness and contrast of the image |
---|
| 1015 | if( $this->image_contr || $this->image_bright ) |
---|
| 1016 | $this->img->AdjBrightContrast($this->image_bright,$this->image_contr); |
---|
| 1017 | if( $this->image_sat ) |
---|
| 1018 | $this->img->AdjSat($this->image_sat); |
---|
| 1019 | } |
---|
| 1020 | |
---|
| 1021 | // Text scale offset in world coordinates |
---|
| 1022 | function SetTextScaleOff($aOff) { |
---|
| 1023 | $this->text_scale_off = $aOff; |
---|
| 1024 | } |
---|
| 1025 | |
---|
| 1026 | // Get min and max values for all included plots |
---|
| 1027 | function GetPlotsYMinMax(&$aPlots) { |
---|
| 1028 | list($xmax,$max) = $aPlots[0]->Max(); |
---|
| 1029 | list($xmin,$min) = $aPlots[0]->Min(); |
---|
| 1030 | for($i=0; $i<count($aPlots); ++$i ) { |
---|
| 1031 | list($xmax,$ymax)=$aPlots[$i]->Max(); |
---|
| 1032 | list($xmin,$ymin)=$aPlots[$i]->Min(); |
---|
| 1033 | if (!is_string($ymax) || $ymax != "") $max=max($max,$ymax); |
---|
| 1034 | if (!is_string($ymin) || $ymin != "") $min=min($min,$ymin); |
---|
| 1035 | } |
---|
| 1036 | if( $min == "" ) $min = 0; |
---|
| 1037 | if( $max == "" ) $max = 0; |
---|
| 1038 | if( $min == 0 && $max == 0 ) { |
---|
| 1039 | // Special case if all values are 0 |
---|
| 1040 | $min=0;$max=1; |
---|
| 1041 | } |
---|
| 1042 | return array($min,$max); |
---|
| 1043 | } |
---|
| 1044 | |
---|
| 1045 | // Draw a frame around the image |
---|
| 1046 | function StrokeFrame() { |
---|
| 1047 | if( !$this->doframe ) return; |
---|
| 1048 | if( $this->doshadow ) { |
---|
| 1049 | $this->img->SetColor($this->frame_color); |
---|
| 1050 | if( $this->background_image_type <= 1 ) |
---|
| 1051 | $c = $this->margin_color; |
---|
| 1052 | else |
---|
| 1053 | $c = false; |
---|
| 1054 | $this->img->ShadowRectangle(0,0,$this->img->width,$this->img->height, |
---|
| 1055 | $c,$this->shadow_width); |
---|
| 1056 | } |
---|
| 1057 | else { |
---|
| 1058 | $this->img->SetLineWeight($this->frame_weight); |
---|
| 1059 | if( $this->background_image_type <= 1 ) { |
---|
| 1060 | $this->img->SetColor($this->margin_color); |
---|
| 1061 | $this->img->FilledRectangle(1,1,$this->img->width-2,$this->img->height-2); |
---|
| 1062 | } |
---|
| 1063 | $this->img->SetColor($this->frame_color); |
---|
| 1064 | $this->img->Rectangle(0,0,$this->img->width-1,$this->img->height-1); |
---|
| 1065 | } |
---|
| 1066 | } |
---|
| 1067 | } // Class |
---|
| 1068 | |
---|
| 1069 | |
---|
| 1070 | //=================================================== |
---|
| 1071 | // CLASS TTF |
---|
| 1072 | // Description: Handle TTF font names |
---|
| 1073 | //=================================================== |
---|
| 1074 | class TTF { |
---|
| 1075 | var $font_fam; |
---|
| 1076 | //--------------- |
---|
| 1077 | // CONSTRUCTOR |
---|
| 1078 | function TTF() { |
---|
| 1079 | // Base file names for available fonts |
---|
| 1080 | $this->font_fam=array( |
---|
| 1081 | FF_COURIER => TTF_DIR."courier", |
---|
| 1082 | FF_VERDANA => TTF_DIR."verdana", |
---|
| 1083 | FF_TIMES => TTF_DIR."times", |
---|
| 1084 | FF_HANDWRT => TTF_DIR."handwriting", |
---|
| 1085 | FF_COMIC => TTF_DIR."comic", |
---|
| 1086 | FF_ARIAL => TTF_DIR."arial", |
---|
| 1087 | FF_BOOK => TTF_DIR."bookant", |
---|
| 1088 | FF_VERA => TTF_DIR."Vera"); |
---|
| 1089 | } |
---|
| 1090 | |
---|
| 1091 | //--------------- |
---|
| 1092 | // PUBLIC METHODS |
---|
| 1093 | // Create the TTF file from the font specification |
---|
| 1094 | function File($fam,$style=FS_NORMAL) { |
---|
| 1095 | $f=$this->font_fam[$fam]; |
---|
| 1096 | if( !$f ) JpGraphError::Raise("<b>JpGraph Error:</b> Unknown TTF font family."); |
---|
| 1097 | switch( $style ) { |
---|
| 1098 | case FS_NORMAL: |
---|
| 1099 | break; |
---|
| 1100 | case FS_BOLD: $f .= "Bd"; |
---|
| 1101 | break; |
---|
| 1102 | case FS_ITALIC: $f .= "It"; |
---|
| 1103 | break; |
---|
| 1104 | case FS_BOLDIT: $f .= "BI"; |
---|
| 1105 | break; |
---|
| 1106 | default: |
---|
| 1107 | JpGraphError::Raise("<b>JpGraph Error:</b> Unknown TTF Style."); |
---|
| 1108 | } |
---|
| 1109 | $f .= ".ttf"; |
---|
| 1110 | |
---|
| 1111 | // Check that file exist |
---|
| 1112 | if( !file_exists($f) ) |
---|
| 1113 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't open font file \"$f\". Wrong directory?"); |
---|
| 1114 | |
---|
| 1115 | return $f; |
---|
| 1116 | } |
---|
| 1117 | } // Class |
---|
| 1118 | |
---|
| 1119 | //=================================================== |
---|
| 1120 | // CLASS LineProperty |
---|
| 1121 | // Description: Holds properties for a line |
---|
| 1122 | //=================================================== |
---|
| 1123 | class LineProperty { |
---|
| 1124 | var $iWeight=1, $iColor="black",$iStyle="solid"; |
---|
| 1125 | var $iShow=true; |
---|
| 1126 | |
---|
| 1127 | //--------------- |
---|
| 1128 | // PUBLIC METHODS |
---|
| 1129 | function SetColor($aColor) { |
---|
| 1130 | $this->iColor = $aColor; |
---|
| 1131 | } |
---|
| 1132 | |
---|
| 1133 | function SetWeight($aWeight) { |
---|
| 1134 | $this->iWeight = $aWeight; |
---|
| 1135 | } |
---|
| 1136 | |
---|
| 1137 | function SetStyle($aStyle) { |
---|
| 1138 | $this->iStyle = $aStyle; |
---|
| 1139 | } |
---|
| 1140 | |
---|
| 1141 | function Show($aShow=true) { |
---|
| 1142 | $this->iShow=$aShow; |
---|
| 1143 | } |
---|
| 1144 | |
---|
| 1145 | function Stroke($aImg,$aX1,$aY1,$aX2,$aY2) { |
---|
| 1146 | if( $this->iShow ) { |
---|
| 1147 | $aImg->SetColor($this->iColor); |
---|
| 1148 | $aImg->SetLineWeight($this->iWeight); |
---|
| 1149 | $aImg->SetLineStyle($this->iStyle); |
---|
| 1150 | $aImg->StyleLine($aX1,$aY1,$aX2,$aY2); |
---|
| 1151 | } |
---|
| 1152 | } |
---|
| 1153 | } |
---|
| 1154 | |
---|
| 1155 | |
---|
| 1156 | |
---|
| 1157 | //=================================================== |
---|
| 1158 | // CLASS Text |
---|
| 1159 | // Description: Arbitrary text object that can be added to the graph |
---|
| 1160 | //=================================================== |
---|
| 1161 | class Text { |
---|
| 1162 | var $t,$x=0,$y=0,$halign="left",$valign="top",$color=array(0,0,0); |
---|
| 1163 | var $font_family=FF_FONT1,$font_style=FS_NORMAL,$font_size=12,$hide=false,$dir=0; |
---|
| 1164 | var $boxed=false; // Should the text be boxed |
---|
| 1165 | var $paragraph_align="left"; |
---|
| 1166 | |
---|
| 1167 | //--------------- |
---|
| 1168 | // CONSTRUCTOR |
---|
| 1169 | |
---|
| 1170 | // Create new text at absolute pixel coordinates |
---|
| 1171 | function Text($aTxt="",$aXAbsPos=0,$aYAbsPos=0) { |
---|
| 1172 | $this->t = $aTxt; |
---|
| 1173 | $this->x = $aXAbsPos; |
---|
| 1174 | $this->y = $aYAbsPos; |
---|
| 1175 | } |
---|
| 1176 | //--------------- |
---|
| 1177 | // PUBLIC METHODS |
---|
| 1178 | // Set the string in the text object |
---|
| 1179 | function Set($aTxt) { |
---|
| 1180 | $this->t = $aTxt; |
---|
| 1181 | } |
---|
| 1182 | |
---|
| 1183 | // Specify the position and alignment for the text object |
---|
| 1184 | function Pos($aXAbsPos=0,$aYAbsPos=0,$aHAlign="left",$aVAlign="top") { |
---|
| 1185 | $this->x = $aXAbsPos; |
---|
| 1186 | $this->y = $aYAbsPos; |
---|
| 1187 | $this->halign = $aHAlign; |
---|
| 1188 | $this->valign = $aVAlign; |
---|
| 1189 | } |
---|
| 1190 | |
---|
| 1191 | // Specify alignment for the text |
---|
| 1192 | function Align($aHAlign,$aVAlign="top") { |
---|
| 1193 | $this->halign = $aHAlign; |
---|
| 1194 | $this->valign = $aVAlign; |
---|
| 1195 | } |
---|
| 1196 | |
---|
| 1197 | // Specifies the alignment for a multi line text |
---|
| 1198 | function ParagraphAlign($aAlign) { |
---|
| 1199 | $this->paragraph_align = $aAlign; |
---|
| 1200 | } |
---|
| 1201 | |
---|
| 1202 | // Specify that the text should be boxed. fcolor=frame color, bcolor=border color, |
---|
| 1203 | // $shadow=drop shadow should be added around the text. |
---|
| 1204 | function SetBox($aFrameColor=array(255,255,255),$aBorderColor=array(0,0,0),$aShadow=false) { |
---|
| 1205 | if( $aFrameColor==false ) |
---|
| 1206 | $this->boxed=false; |
---|
| 1207 | else |
---|
| 1208 | $this->boxed=true; |
---|
| 1209 | $this->fcolor=$aFrameColor; |
---|
| 1210 | $this->bcolor=$aBorderColor; |
---|
| 1211 | $this->shadow=$aShadow; |
---|
| 1212 | } |
---|
| 1213 | |
---|
| 1214 | // Hide the text |
---|
| 1215 | function Hide($aHide=true) { |
---|
| 1216 | $this->hide=$aHide; |
---|
| 1217 | } |
---|
| 1218 | |
---|
| 1219 | // This looks ugly since it's not a very orthogonal design |
---|
| 1220 | // but I added this "inverse" of Hide() to harmonize |
---|
| 1221 | // with some classes which I designed more recently (especially) |
---|
| 1222 | // jpgraph_gantt |
---|
| 1223 | function Show($aShow=true) { |
---|
| 1224 | $this->hide=!$aShow; |
---|
| 1225 | } |
---|
| 1226 | |
---|
| 1227 | // Specify font |
---|
| 1228 | function SetFont($aFamily,$aStyle=FS_NORMAL,$aSize=10) { |
---|
| 1229 | $this->font_family=$aFamily; |
---|
| 1230 | $this->font_style=$aStyle; |
---|
| 1231 | $this->font_size=$aSize; |
---|
| 1232 | } |
---|
| 1233 | |
---|
| 1234 | // Center the text between $left and $right coordinates |
---|
| 1235 | function Center($aLeft,$aRight,$aYAbsPos=false) { |
---|
| 1236 | $this->x = $aLeft + ($aRight-$aLeft )/2; |
---|
| 1237 | $this->halign = "center"; |
---|
| 1238 | if( is_numeric($aYAbsPos) ) |
---|
| 1239 | $this->y = $aYAbsPos; |
---|
| 1240 | } |
---|
| 1241 | |
---|
| 1242 | // Set text color |
---|
| 1243 | function SetColor($aColor) { |
---|
| 1244 | $this->color = $aColor; |
---|
| 1245 | } |
---|
| 1246 | |
---|
| 1247 | // Orientation of text. Note only TTF fonts can have an arbitrary angle |
---|
| 1248 | function SetOrientation($aDirection=0) { |
---|
| 1249 | if( is_numeric($aDirection) ) |
---|
| 1250 | $this->dir=$aDirection; |
---|
| 1251 | elseif( $aDirection=="h" ) |
---|
| 1252 | $this->dir = 0; |
---|
| 1253 | elseif( $aDirection=="v" ) |
---|
| 1254 | $this->dir = 90; |
---|
| 1255 | else JpGraphError::Raise("<b>JpGraph Error:</b> Invalid direction specified for text."); |
---|
| 1256 | } |
---|
| 1257 | |
---|
| 1258 | // Total width of text |
---|
| 1259 | function GetWidth(&$aImg) { |
---|
| 1260 | $aImg->SetFont($this->font_family,$this->font_style,$this->font_size); |
---|
| 1261 | return $aImg->GetTextWidth($this->t); |
---|
| 1262 | } |
---|
| 1263 | |
---|
| 1264 | // Hight of font |
---|
| 1265 | function GetFontHeight(&$aImg) { |
---|
| 1266 | $aImg->SetFont($this->font_family,$this->font_style,$this->font_size); |
---|
| 1267 | return $aImg->GetFontHeight(); |
---|
| 1268 | } |
---|
| 1269 | |
---|
| 1270 | function GetTextHeight(&$aImg) { |
---|
| 1271 | $aImg->SetFont($this->font_family,$this->font_style,$this->font_size); |
---|
| 1272 | return $aImg->GetTextHeight($this->t); |
---|
| 1273 | } |
---|
| 1274 | |
---|
| 1275 | // Display text in image |
---|
| 1276 | function Stroke(&$aImg,$x=-1,$y=-1) { |
---|
| 1277 | if( $x>-1 ) $this->x = $x; |
---|
| 1278 | if( $y>-1 ) $this->y = $y; |
---|
| 1279 | |
---|
| 1280 | // If position been given as a fraction of the image size |
---|
| 1281 | // calculate the absolute position |
---|
| 1282 | if( $this->x < 1 ) $this->x *= $aImg->width; |
---|
| 1283 | if( $this->y < 1 ) $this->y *= $aImg->height; |
---|
| 1284 | |
---|
| 1285 | $aImg->PushColor($this->color); |
---|
| 1286 | $aImg->SetFont($this->font_family,$this->font_style,$this->font_size); |
---|
| 1287 | $aImg->SetTextAlign($this->halign,$this->valign); |
---|
| 1288 | if( $this->boxed ) { |
---|
| 1289 | if( $this->fcolor=="nofill" ) $this->fcolor=false; |
---|
| 1290 | $aImg->StrokeBoxedText($this->x,$this->y,$this->t, |
---|
| 1291 | $this->dir,$this->fcolor,$this->bcolor,$this->shadow, |
---|
| 1292 | $this->paragraph_align); |
---|
| 1293 | } |
---|
| 1294 | else { |
---|
| 1295 | $aImg->StrokeText($this->x,$this->y,$this->t,$this->dir, |
---|
| 1296 | $this->paragraph_align); |
---|
| 1297 | } |
---|
| 1298 | $aImg->PopColor($this->color); |
---|
| 1299 | } |
---|
| 1300 | } // Class |
---|
| 1301 | |
---|
| 1302 | //=================================================== |
---|
| 1303 | // CLASS Grid |
---|
| 1304 | // Description: responsible for drawing grid lines in graph |
---|
| 1305 | //=================================================== |
---|
| 1306 | class Grid { |
---|
| 1307 | var $img; |
---|
| 1308 | var $scale; |
---|
| 1309 | var $grid_color=array(196,196,196); |
---|
| 1310 | var $type="solid"; |
---|
| 1311 | var $show=false, $showMinor=false,$weight=1; |
---|
| 1312 | //--------------- |
---|
| 1313 | // CONSTRUCTOR |
---|
| 1314 | function Grid(&$aAxis) { |
---|
| 1315 | $this->scale = &$aAxis->scale; |
---|
| 1316 | $this->img = &$aAxis->img; |
---|
| 1317 | } |
---|
| 1318 | //--------------- |
---|
| 1319 | // PUBLIC METHODS |
---|
| 1320 | function SetColor($aColor) { |
---|
| 1321 | $this->grid_color=$aColor; |
---|
| 1322 | } |
---|
| 1323 | |
---|
| 1324 | function SetWeight($aWeight) { |
---|
| 1325 | $this->weight=$aWeight; |
---|
| 1326 | } |
---|
| 1327 | |
---|
| 1328 | // Specify if grid should be dashed, dotted or solid |
---|
| 1329 | function SetLineStyle($aType) { |
---|
| 1330 | $this->type = $aType; |
---|
| 1331 | } |
---|
| 1332 | |
---|
| 1333 | // Decide if both major and minor grid should be displayed |
---|
| 1334 | function Show($aShowMajor=true,$aShowMinor=false) { |
---|
| 1335 | $this->show=$aShowMajor; |
---|
| 1336 | $this->showMinor=$aShowMinor; |
---|
| 1337 | } |
---|
| 1338 | |
---|
| 1339 | // Display the grid |
---|
| 1340 | function Stroke() { |
---|
| 1341 | if( $this->showMinor ) |
---|
| 1342 | $this->DoStroke($this->scale->ticks->ticks_pos); |
---|
| 1343 | else |
---|
| 1344 | $this->DoStroke($this->scale->ticks->maj_ticks_pos); |
---|
| 1345 | } |
---|
| 1346 | |
---|
| 1347 | //-------------- |
---|
| 1348 | // Private methods |
---|
| 1349 | // Draw the grid |
---|
| 1350 | function DoStroke(&$aTicksPos) { |
---|
| 1351 | if( !$this->show ) |
---|
| 1352 | return; |
---|
| 1353 | $this->img->SetColor($this->grid_color); |
---|
| 1354 | $this->img->SetLineWeight($this->weight); |
---|
| 1355 | $nbrgrids = count($aTicksPos); |
---|
| 1356 | if( $this->scale->type=="y" ) { |
---|
| 1357 | $xl=$this->img->left_margin; |
---|
| 1358 | $xr=$this->img->width-$this->img->right_margin; |
---|
| 1359 | for($i=0; $i<$nbrgrids; ++$i) { |
---|
| 1360 | $y=$aTicksPos[$i]; |
---|
| 1361 | if( $this->type == "solid" ) |
---|
| 1362 | $this->img->Line($xl,$y,$xr,$y); |
---|
| 1363 | elseif( $this->type == "dotted" ) |
---|
| 1364 | $this->img->DashedLine($xl,$y,$xr,$y,1,6); |
---|
| 1365 | elseif( $this->type == "dashed" ) |
---|
| 1366 | $this->img->DashedLine($xl,$y,$xr,$y,2,4); |
---|
| 1367 | elseif( $this->type == "longdashed" ) |
---|
| 1368 | $this->img->DashedLine($xl,$y,$xr,$y,8,6); |
---|
| 1369 | } |
---|
| 1370 | } |
---|
| 1371 | |
---|
| 1372 | if( $this->scale->type=="x" ) { |
---|
| 1373 | $yu=$this->img->top_margin; |
---|
| 1374 | $yl=$this->img->height-$this->img->bottom_margin; |
---|
| 1375 | $x=$aTicksPos[0]; |
---|
| 1376 | $limit=$this->img->width-$this->img->right_margin; |
---|
| 1377 | $i=0; |
---|
| 1378 | // We must also test for limit since we might have |
---|
| 1379 | // an offset and the number of ticks is calculated with |
---|
| 1380 | // assumption offset==0 so we might end up drawing one |
---|
| 1381 | // to many gridlines |
---|
| 1382 | while( $x<=$limit && $i<count($aTicksPos)) { |
---|
| 1383 | $x=$aTicksPos[$i]; |
---|
| 1384 | if( $this->type == "solid" ) |
---|
| 1385 | $this->img->Line($x,$yl,$x,$yu); |
---|
| 1386 | elseif( $this->type == "dotted" ) |
---|
| 1387 | $this->img->DashedLine($x,$yl,$x,$yu,1,6); |
---|
| 1388 | elseif( $this->type == "dashed" ) |
---|
| 1389 | $this->img->DashedLine($x,$yl,$x,$yu,2,4); |
---|
| 1390 | elseif( $this->type == "longdashed" ) |
---|
| 1391 | $this->img->DashedLine($x,$yl,$x,$yu,8,6); |
---|
| 1392 | ++$i; |
---|
| 1393 | } |
---|
| 1394 | } |
---|
| 1395 | return true; |
---|
| 1396 | } |
---|
| 1397 | } // Class |
---|
| 1398 | |
---|
| 1399 | //=================================================== |
---|
| 1400 | // CLASS Axis |
---|
| 1401 | // Description: Defines X and Y axis. Notes that at the |
---|
| 1402 | // moment the code is not really good since the axis on |
---|
| 1403 | // several occasion must know wheter it's an X or Y axis. |
---|
| 1404 | // This was a design decision to make the code easier to |
---|
| 1405 | // follow. |
---|
| 1406 | //=================================================== |
---|
| 1407 | class Axis { |
---|
| 1408 | var $pos = false; |
---|
| 1409 | var $weight=1; |
---|
| 1410 | var $color=array(0,0,0),$label_color=array(0,0,0); |
---|
| 1411 | var $img=null,$scale=null; |
---|
| 1412 | var $hide=false; |
---|
| 1413 | var $ticks_label=false; |
---|
| 1414 | var $show_first_label=true; |
---|
| 1415 | var $label_step=1; // Used by a text axis to specify what multiple of major steps |
---|
| 1416 | // should be labeled. |
---|
| 1417 | var $tick_step=1; |
---|
| 1418 | var $labelPos=0; // Which side of the axis should the labels be? |
---|
| 1419 | var $title=null,$title_adjust,$title_margin,$title_side=SIDE_LEFT; |
---|
| 1420 | var $font_family=FF_FONT1,$font_style=FS_NORMAL,$font_size=12,$label_angle=0; |
---|
| 1421 | var $tick_label_margin=6; |
---|
| 1422 | //--------------- |
---|
| 1423 | // CONSTRUCTOR |
---|
| 1424 | function Axis(&$img,&$aScale,$color=array(0,0,0)) { |
---|
| 1425 | $this->img = &$img; |
---|
| 1426 | $this->scale = &$aScale; |
---|
| 1427 | $this->color = $color; |
---|
| 1428 | $this->title=new Text(""); |
---|
| 1429 | |
---|
| 1430 | if( $aScale->type=="y" ) { |
---|
| 1431 | $this->title_margin = 25; |
---|
| 1432 | $this->title_adjust="middle"; |
---|
| 1433 | $this->title->SetOrientation(90); |
---|
| 1434 | $this->tick_label_margin=6; |
---|
| 1435 | } |
---|
| 1436 | else { |
---|
| 1437 | $this->title_margin = 5; |
---|
| 1438 | $this->title_adjust="high"; |
---|
| 1439 | $this->title->SetOrientation(0); |
---|
| 1440 | $this->tick_label_margin=3; |
---|
| 1441 | } |
---|
| 1442 | } |
---|
| 1443 | //--------------- |
---|
| 1444 | // PUBLIC METHODS |
---|
| 1445 | |
---|
| 1446 | // Utility function to set the direction for tick marks |
---|
| 1447 | function SetTickDirection($aDir) { |
---|
| 1448 | $this->scale->ticks->SetDirection($aDir); |
---|
| 1449 | } |
---|
| 1450 | |
---|
| 1451 | function SetLabelFormatString($aFormStr) { |
---|
| 1452 | $this->scale->ticks->SetLabelFormat($aFormStr); |
---|
| 1453 | } |
---|
| 1454 | |
---|
| 1455 | function SetLabelFormatCallback($aFuncName) { |
---|
| 1456 | $this->scale->ticks->SetFormatCallback($aFuncName); |
---|
| 1457 | } |
---|
| 1458 | |
---|
| 1459 | // Don't display the first label |
---|
| 1460 | function HideFirstTickLabel($aHide=false) { |
---|
| 1461 | $this->show_first_label=$aHide; |
---|
| 1462 | } |
---|
| 1463 | |
---|
| 1464 | // Hide the axis |
---|
| 1465 | function Hide($aHide=true) { |
---|
| 1466 | $this->hide=$aHide; |
---|
| 1467 | } |
---|
| 1468 | |
---|
| 1469 | // Weight of axis |
---|
| 1470 | function SetWeight($aWeight) { |
---|
| 1471 | $this->weight = $aWeight; |
---|
| 1472 | } |
---|
| 1473 | |
---|
| 1474 | // Axis color |
---|
| 1475 | function SetColor($aColor,$aLabelColor=false) { |
---|
| 1476 | $this->color = $aColor; |
---|
| 1477 | if( !$aLabelColor ) $this->label_color = $aColor; |
---|
| 1478 | else $this->label_color = $aLabelColor; |
---|
| 1479 | } |
---|
| 1480 | |
---|
| 1481 | // Title on axis |
---|
| 1482 | function SetTitle($aTitle,$aAdjustAlign="high") { |
---|
| 1483 | $this->title->Set($aTitle); |
---|
| 1484 | $this->title_adjust=$aAdjustAlign; |
---|
| 1485 | } |
---|
| 1486 | |
---|
| 1487 | // Specify distance from the axis |
---|
| 1488 | function SetTitleMargin($aMargin) { |
---|
| 1489 | $this->title_margin=$aMargin; |
---|
| 1490 | } |
---|
| 1491 | |
---|
| 1492 | // Specify text labels for the ticks. One label for each data point |
---|
| 1493 | function SetTickLabels($aLabelArray) { |
---|
| 1494 | $this->ticks_label = $aLabelArray; |
---|
| 1495 | } |
---|
| 1496 | |
---|
| 1497 | // How far from the axis should the labels be drawn |
---|
| 1498 | function SetTickLabelMargin($aMargin) { |
---|
| 1499 | $this->tick_label_margin=$aMargin; |
---|
| 1500 | } |
---|
| 1501 | |
---|
| 1502 | // Specify that every $step of the ticks should be displayed starting |
---|
| 1503 | // at $start |
---|
| 1504 | // DEPRECATED FUNCTION: USE SetTextTickInterval() INSTEAD |
---|
| 1505 | function SetTextTicks($step,$start=0) { |
---|
| 1506 | JpGraphError::Raise("<b>JpGraph Error:</b> SetTextTicks() is deprecated. Use SetTextTickInterval() instead."); |
---|
| 1507 | } |
---|
| 1508 | |
---|
| 1509 | // Specify that every $step of the ticks should be displayed starting |
---|
| 1510 | // at $start |
---|
| 1511 | function SetTextTickInterval($aStep,$aStart=0) { |
---|
| 1512 | $this->scale->ticks->SetTextLabelStart($aStart); |
---|
| 1513 | $this->tick_step=$aStep; |
---|
| 1514 | } |
---|
| 1515 | |
---|
| 1516 | // Specify that every $step tick mark should have a label |
---|
| 1517 | // should be displayed starting |
---|
| 1518 | function SetTextLabelInterval($aStep) { |
---|
| 1519 | if( $aStep < 1 ) |
---|
| 1520 | JpGraphError::Raise("<b>JpGraph Error:</b> Text label interval must be specified >= 1."); |
---|
| 1521 | $this->label_step=$aStep; |
---|
| 1522 | } |
---|
| 1523 | |
---|
| 1524 | |
---|
| 1525 | // Which side of the axis should the labels be on? |
---|
| 1526 | function SetLabelPos($aSidePos) { |
---|
| 1527 | $this->labelPos=$aSidePos; |
---|
| 1528 | } |
---|
| 1529 | |
---|
| 1530 | // Set the font |
---|
| 1531 | function SetFont($aFamily,$aStyle=FS_NORMAL,$aSize=10) { |
---|
| 1532 | $this->font_family = $aFamily; |
---|
| 1533 | $this->font_style = $aStyle; |
---|
| 1534 | $this->font_size = $aSize; |
---|
| 1535 | } |
---|
| 1536 | |
---|
| 1537 | // Which side of the axis should the axis title be? |
---|
| 1538 | function SetTitleSide($aSideOfAxis) { |
---|
| 1539 | $this->title_side = $aSideOfAxis; |
---|
| 1540 | } |
---|
| 1541 | |
---|
| 1542 | // Stroke the axis. |
---|
| 1543 | function Stroke($aOtherAxisScale) { |
---|
| 1544 | if( $this->hide ) return; |
---|
| 1545 | if( is_numeric($this->pos) ) { |
---|
| 1546 | $pos=$aOtherAxisScale->Translate($this->pos); |
---|
| 1547 | } |
---|
| 1548 | else { // Default to minimum of other scale if pos not set |
---|
| 1549 | if( $aOtherAxisScale->GetMinVal() >= 0 || $this->pos=="min" ) { |
---|
| 1550 | $pos = $aOtherAxisScale->scale_abs[0]; |
---|
| 1551 | } |
---|
| 1552 | else { // If negative set x-axis at 0 |
---|
| 1553 | $this->pos=0; |
---|
| 1554 | $pos=$aOtherAxisScale->Translate(0); |
---|
| 1555 | } |
---|
| 1556 | } |
---|
| 1557 | $this->img->SetLineWeight($this->weight); |
---|
| 1558 | $this->img->SetColor($this->color); |
---|
| 1559 | $this->img->SetFont($this->font_family,$this->font_style,$this->font_size); |
---|
| 1560 | if( $this->scale->type == "x" ) { |
---|
| 1561 | $this->img->FilledRectangle($this->img->left_margin,$pos, |
---|
| 1562 | $this->img->width-$this->img->right_margin,$pos+$this->weight-1); |
---|
| 1563 | $y=$pos+$this->img->GetFontHeight()+$this->title_margin; |
---|
| 1564 | if( $this->title_adjust=="high" ) |
---|
| 1565 | $this->title->Pos($this->img->width-$this->img->right_margin,$y,"right","top"); |
---|
| 1566 | elseif($this->title_adjust=="middle") |
---|
| 1567 | $this->title->Pos(($this->img->width-$this->img->left_margin-$this->img->right_margin)/2+$this->img->left_margin,$y,"center","top"); |
---|
| 1568 | elseif($this->title_adjust=="low") |
---|
| 1569 | $this->title->Pos($this->img->left_margin,$y,"left","top"); |
---|
| 1570 | } |
---|
| 1571 | elseif( $this->scale->type == "y" ) { |
---|
| 1572 | // Add line weight to the height of the axis since |
---|
| 1573 | // the x-axis could have a width>1 and we want the axis to fit nicely together. |
---|
| 1574 | $this->img->FilledRectangle($pos-$this->weight+1,$this->img->top_margin, |
---|
| 1575 | $pos,$this->img->height-$this->img->bottom_margin+$this->weight-1); |
---|
| 1576 | $x=$pos ; |
---|
| 1577 | if( $this->title_side == SIDE_LEFT ) { |
---|
| 1578 | $x -= $this->title_margin; |
---|
| 1579 | $halign="right"; |
---|
| 1580 | } |
---|
| 1581 | else { |
---|
| 1582 | $x += $this->title_margin; |
---|
| 1583 | $halign="left"; |
---|
| 1584 | } |
---|
| 1585 | if( $this->title_adjust=="high" ) |
---|
| 1586 | $this->title->Pos($x,$this->img->top_margin,$halign,"top"); |
---|
| 1587 | elseif($this->title_adjust=="middle" || $this->title_adjust=="center") |
---|
| 1588 | $this->title->Pos($x,($this->img->height-$this->img->top_margin-$this->img->bottom_margin)/2+$this->img->top_margin,$halign,"center"); |
---|
| 1589 | elseif($this->title_adjust=="low") |
---|
| 1590 | $this->title->Pos($x,$this->img->height-$this->img->bottom_margin,$halign,"bottom"); |
---|
| 1591 | } |
---|
| 1592 | $this->scale->ticks->Stroke($this->img,$this->scale,$pos); |
---|
| 1593 | $this->StrokeLabels($pos); |
---|
| 1594 | $this->title->Stroke($this->img); |
---|
| 1595 | } |
---|
| 1596 | |
---|
| 1597 | // Position for axis line on the "other" scale |
---|
| 1598 | function SetPos($aPosOnOtherScale) { |
---|
| 1599 | $this->pos=$aPosOnOtherScale; |
---|
| 1600 | } |
---|
| 1601 | |
---|
| 1602 | // Specify the angle for the tick labels |
---|
| 1603 | function SetLabelAngle($aAngle) { |
---|
| 1604 | $this->label_angle = $aAngle; |
---|
| 1605 | } |
---|
| 1606 | |
---|
| 1607 | //--------------- |
---|
| 1608 | // PRIVATE METHODS |
---|
| 1609 | // Draw all the tick labels on major tick marks |
---|
| 1610 | function StrokeLabels($aPos,$aMinor=false) { |
---|
| 1611 | $this->img->SetColor($this->label_color); |
---|
| 1612 | $this->img->SetFont($this->font_family,$this->font_style,$this->font_size); |
---|
| 1613 | $yoff=$this->img->GetFontHeight()/2; |
---|
| 1614 | |
---|
| 1615 | // Only draw labels at major tick marks |
---|
| 1616 | $nbr = count($this->scale->ticks->maj_ticks_label); |
---|
| 1617 | |
---|
| 1618 | // We have the option to not-display the very first mark |
---|
| 1619 | // (Usefull when the first label might interfere with another |
---|
| 1620 | // axis.) |
---|
| 1621 | if( $this->show_first_label ) $start=0; |
---|
| 1622 | else $start=1; |
---|
| 1623 | |
---|
| 1624 | // Note. the $limit is only used for the x axis since we |
---|
| 1625 | // might otherwise overshoot if the scale has been centered |
---|
| 1626 | // This is due to us "loosing" the last tick mark if we center. |
---|
| 1627 | //if( $this->scale->type=="x" ) |
---|
| 1628 | // $limit=$this->img->width-$this->img->right_margin; |
---|
| 1629 | //else |
---|
| 1630 | // $limit=$this->img->height; |
---|
| 1631 | |
---|
| 1632 | // $i holds the current index for the label |
---|
| 1633 | $i=$start; |
---|
| 1634 | |
---|
| 1635 | // Now run through all labels making sure we don't overshoot the end |
---|
| 1636 | // of the scale. |
---|
| 1637 | while( $i<$nbr ) { |
---|
| 1638 | // $tpos holds the absolute text position for the label |
---|
| 1639 | $tpos=$this->scale->ticks->maj_ticklabels_pos[$i]; |
---|
| 1640 | // we only draw every $label_step label |
---|
| 1641 | if( ($i % $this->label_step)==0 ) { |
---|
| 1642 | |
---|
| 1643 | // If the label has been specified use that and in other case |
---|
| 1644 | // just label the mark with the actual scale value |
---|
| 1645 | $m=$this->scale->ticks->GetMajor(); |
---|
| 1646 | |
---|
| 1647 | // ticks_label has an entry for each data point |
---|
| 1648 | if( isset($this->ticks_label[$i*$m]) ) |
---|
| 1649 | $label=$this->ticks_label[$i*$m]; |
---|
| 1650 | else |
---|
| 1651 | $label=$this->scale->ticks->maj_ticks_label[$i]; |
---|
| 1652 | |
---|
| 1653 | if( $this->scale->type == "x" ) { |
---|
| 1654 | if( $this->label_angle==0 || $this->label_angle==90 ) |
---|
| 1655 | $this->img->SetTextAlign("center","top"); |
---|
| 1656 | else |
---|
| 1657 | $this->img->SetTextAlign("topanchor","top"); |
---|
| 1658 | $this->img->StrokeText($tpos,$aPos+$this->tick_label_margin,$label,$this->label_angle); |
---|
| 1659 | } |
---|
| 1660 | else { |
---|
| 1661 | // scale->type == "y" |
---|
| 1662 | if( $this->label_angle!=0 ) |
---|
| 1663 | JpGraphError::Raise("<b>JpGraph Error:</b> Labels at an angle are not supported on Y-axis"); |
---|
| 1664 | if( $this->labelPos == 0 ) { // To the left of y-axis |
---|
| 1665 | $this->img->SetTextAlign("right","center"); |
---|
| 1666 | $this->img->StrokeText($aPos-$this->tick_label_margin,$tpos,$label); |
---|
| 1667 | } |
---|
| 1668 | else { // To the right of the y-axis |
---|
| 1669 | $this->img->SetTextAlign("left","center"); |
---|
| 1670 | $this->img->StrokeText($aPos+$this->tick_label_margin,$tpos,$label); |
---|
| 1671 | } |
---|
| 1672 | } |
---|
| 1673 | } |
---|
| 1674 | ++$i; |
---|
| 1675 | } |
---|
| 1676 | } |
---|
| 1677 | |
---|
| 1678 | } // Class |
---|
| 1679 | |
---|
| 1680 | //=================================================== |
---|
| 1681 | // CLASS Ticks |
---|
| 1682 | // Description: Abstract base class for drawing linear and logarithmic |
---|
| 1683 | // tick marks on axis |
---|
| 1684 | //=================================================== |
---|
| 1685 | class Ticks { |
---|
| 1686 | var $minor_abs_size=3, $major_abs_size=5; |
---|
| 1687 | var $direction=1; // Should ticks be in(=1) the plot area or outside (=-1)? |
---|
| 1688 | var $scale; |
---|
| 1689 | var $is_set=false; |
---|
| 1690 | var $precision=-1; |
---|
| 1691 | var $supress_zerolabel=false,$supress_first=false; |
---|
| 1692 | var $supress_last=false,$supress_tickmarks=false,$supress_minor_tickmarks=false; |
---|
| 1693 | var $mincolor="",$majcolor=""; |
---|
| 1694 | var $weight=1; |
---|
| 1695 | var $label_formatstr=""; // C-style format string to use for labels |
---|
| 1696 | var $label_formfunc=""; |
---|
| 1697 | |
---|
| 1698 | |
---|
| 1699 | //--------------- |
---|
| 1700 | // CONSTRUCTOR |
---|
| 1701 | function Ticks(&$aScale) { |
---|
| 1702 | $this->scale=&$aScale; |
---|
| 1703 | } |
---|
| 1704 | |
---|
| 1705 | //--------------- |
---|
| 1706 | // PUBLIC METHODS |
---|
| 1707 | // Set format string for automatic labels |
---|
| 1708 | function SetLabelFormat($aFormatString) { |
---|
| 1709 | $this->label_formatstr=$aFormatString; |
---|
| 1710 | } |
---|
| 1711 | |
---|
| 1712 | function SetFormatCallback($aCallbackFuncName) { |
---|
| 1713 | $this->label_formfunc = $aCallbackFuncName; |
---|
| 1714 | } |
---|
| 1715 | |
---|
| 1716 | // Don't display the first zero label |
---|
| 1717 | function SupressZeroLabel($aFlag=true) { |
---|
| 1718 | $this->supress_zerolabel=$aFlag; |
---|
| 1719 | } |
---|
| 1720 | |
---|
| 1721 | // Don't display minor tick marks |
---|
| 1722 | function SupressMinorTickMarks($aHide=true) { |
---|
| 1723 | $this->supress_minor_tickmarks=$aHide; |
---|
| 1724 | } |
---|
| 1725 | |
---|
| 1726 | // Don't display major tick marks |
---|
| 1727 | function SupressTickMarks($aHide=true) { |
---|
| 1728 | $this->supress_tickmarks=$aHide; |
---|
| 1729 | } |
---|
| 1730 | |
---|
| 1731 | // Hide the first tick mark |
---|
| 1732 | function SupressFirst($aHide=true) { |
---|
| 1733 | $this->supress_first=$aHide; |
---|
| 1734 | } |
---|
| 1735 | |
---|
| 1736 | // Hide the last tick mark |
---|
| 1737 | function SupressLast($aHide=true) { |
---|
| 1738 | $this->supress_last=$aHide; |
---|
| 1739 | } |
---|
| 1740 | |
---|
| 1741 | // Size (in pixels) of minor tick marks |
---|
| 1742 | function GetMinTickAbsSize() { |
---|
| 1743 | return $this->minor_abs_size; |
---|
| 1744 | } |
---|
| 1745 | |
---|
| 1746 | // Size (in pixels) of major tick marks |
---|
| 1747 | function GetMajTickAbsSize() { |
---|
| 1748 | return $this->major_abs_size; |
---|
| 1749 | } |
---|
| 1750 | |
---|
| 1751 | // Have the ticks been specified |
---|
| 1752 | function IsSpecified() { |
---|
| 1753 | return $this->is_set; |
---|
| 1754 | } |
---|
| 1755 | |
---|
| 1756 | // Set the distance between major and minor tick marks |
---|
| 1757 | function Set($aMaj,$aMin) { |
---|
| 1758 | // "Virtual method" |
---|
| 1759 | // Should be implemented by the concrete subclass |
---|
| 1760 | // if any action is wanted. |
---|
| 1761 | } |
---|
| 1762 | |
---|
| 1763 | // Specify number of decimals in automtic labels |
---|
| 1764 | // Deprecated from 1.4. Use SetFormatString() instead |
---|
| 1765 | function SetPrecision($aPrecision) { |
---|
| 1766 | $this->precision=$aPrecision; |
---|
| 1767 | } |
---|
| 1768 | |
---|
| 1769 | // Which side of the axis should the ticks be on |
---|
| 1770 | function SetDirection($aSide=SIDE_RIGHT) { |
---|
| 1771 | $this->direction=$aSide; |
---|
| 1772 | } |
---|
| 1773 | |
---|
| 1774 | // Set colors for major and minor tick marks |
---|
| 1775 | function SetMarkColor($aMajorColor,$aMinorColor="") { |
---|
| 1776 | $this->majcolor=$aMajorColor; |
---|
| 1777 | |
---|
| 1778 | // If not specified use same as major |
---|
| 1779 | if( $aMinorColor=="" ) |
---|
| 1780 | $this->mincolor=$aMajorColor; |
---|
| 1781 | else |
---|
| 1782 | $this->mincolor=$aMinorColor; |
---|
| 1783 | } |
---|
| 1784 | |
---|
| 1785 | function SetWeight($aWeight) { |
---|
| 1786 | $this->weight=$aWeight; |
---|
| 1787 | } |
---|
| 1788 | |
---|
| 1789 | } // Class |
---|
| 1790 | |
---|
| 1791 | //=================================================== |
---|
| 1792 | // CLASS LinearTicks |
---|
| 1793 | // Description: Draw linear ticks on axis |
---|
| 1794 | //=================================================== |
---|
| 1795 | class LinearTicks extends Ticks { |
---|
| 1796 | var $minor_step=1, $major_step=2; |
---|
| 1797 | var $xlabel_offset=0,$xtick_offset=0; |
---|
| 1798 | var $label_offset=0; // What offset should the displayed label have |
---|
| 1799 | // i.e should we display 0,1,2 or 1,2,3,4 or 2,3,4 etc |
---|
| 1800 | var $text_label_start=0; |
---|
| 1801 | //--------------- |
---|
| 1802 | // CONSTRUCTOR |
---|
| 1803 | function LinearTicks() { |
---|
| 1804 | // Empty |
---|
| 1805 | } |
---|
| 1806 | |
---|
| 1807 | //--------------- |
---|
| 1808 | // PUBLIC METHODS |
---|
| 1809 | |
---|
| 1810 | |
---|
| 1811 | // Return major step size in world coordinates |
---|
| 1812 | function GetMajor() { |
---|
| 1813 | return $this->major_step; |
---|
| 1814 | } |
---|
| 1815 | |
---|
| 1816 | // Return minor step size in world coordinates |
---|
| 1817 | function GetMinor() { |
---|
| 1818 | return $this->minor_step; |
---|
| 1819 | } |
---|
| 1820 | |
---|
| 1821 | // Set Minor and Major ticks (in world coordinates) |
---|
| 1822 | function Set($aMajStep,$aMinStep) { |
---|
| 1823 | if( $aMajStep <= 0 || $aMinStep <= 0 ) { |
---|
| 1824 | JpGraphError::Raise("<b>JpGraph Error:</b> Minor or major step size is 0. Check that you haven't |
---|
| 1825 | got an accidental SetTextTicks(0) in your code.<p> |
---|
| 1826 | If this is not the case you might have stumbled upon a bug in JpGraph. |
---|
| 1827 | Please report this and if possible include the data that caused the |
---|
| 1828 | problem."); |
---|
| 1829 | } |
---|
| 1830 | |
---|
| 1831 | $this->major_step=$aMajStep; |
---|
| 1832 | $this->minor_step=$aMinStep; |
---|
| 1833 | $this->is_set = true; |
---|
| 1834 | } |
---|
| 1835 | |
---|
| 1836 | // Draw linear ticks |
---|
| 1837 | function Stroke(&$img,&$scale,$pos) { |
---|
| 1838 | $maj_step_abs = $scale->scale_factor*$this->major_step; |
---|
| 1839 | $min_step_abs = $scale->scale_factor*$this->minor_step; |
---|
| 1840 | |
---|
| 1841 | if( $min_step_abs==0 || $maj_step_abs==0 ) |
---|
| 1842 | JpGraphError::Raise("<b>JpGraph Error:</b> A plot has an illegal scale. This could for example be |
---|
| 1843 | that you are trying to use text autoscaling to draw a line plot with only one point |
---|
| 1844 | or similair abnormality (a line needs two points!)."); |
---|
| 1845 | $limit = $scale->scale_abs[1]; |
---|
| 1846 | $nbrmajticks=floor(1.000001*(($scale->GetMaxVal()-$scale->GetMinVal())/$this->major_step))+1; |
---|
| 1847 | $first=0; |
---|
| 1848 | |
---|
| 1849 | // If precision hasn't been specified set it to a sensible value |
---|
| 1850 | if( $this->precision==-1 ) { |
---|
| 1851 | $t = log10($this->minor_step); |
---|
| 1852 | if( $t > 0 ) |
---|
| 1853 | $precision = 0; |
---|
| 1854 | else |
---|
| 1855 | $precision = -floor($t); |
---|
| 1856 | } |
---|
| 1857 | else |
---|
| 1858 | $precision = $this->precision; |
---|
| 1859 | |
---|
| 1860 | $img->SetLineWeight($this->weight); |
---|
| 1861 | |
---|
| 1862 | // Handle ticks on X-axis |
---|
| 1863 | if( $scale->type == "x" ) { |
---|
| 1864 | // Draw the major tick marks |
---|
| 1865 | |
---|
| 1866 | $yu = $pos - $this->direction*$this->GetMajTickAbsSize(); |
---|
| 1867 | |
---|
| 1868 | // TODO: Add logic to set label_offset for text labels |
---|
| 1869 | $label = (float)$scale->GetMinVal()+$this->text_label_start+$this->label_offset; |
---|
| 1870 | |
---|
| 1871 | $start_abs=$scale->scale_factor*$this->text_label_start; |
---|
| 1872 | |
---|
| 1873 | $nbrmajticks=ceil(($scale->GetMaxVal()-$scale->GetMinVal()-$this->text_label_start )/$this->major_step)+1; |
---|
| 1874 | for( $i=0; $label<=$scale->GetMaxVal()+$this->label_offset; ++$i ) { |
---|
| 1875 | $x=$scale->scale_abs[0]+$start_abs+$i*$maj_step_abs+$this->xlabel_offset*$min_step_abs; |
---|
| 1876 | $this->maj_ticklabels_pos[$i]=ceil($x); |
---|
| 1877 | |
---|
| 1878 | // Apply format |
---|
| 1879 | if( $this->label_formfunc != "" ) { |
---|
| 1880 | $f=$this->label_formfunc; |
---|
| 1881 | $l = $f($label); |
---|
| 1882 | } |
---|
| 1883 | elseif( $this->label_formatstr != "" ) |
---|
| 1884 | $l = sprintf($this->label_formatstr,$label); |
---|
| 1885 | else |
---|
| 1886 | $l = sprintf("%01.".$precision."f",round($label,$precision)); |
---|
| 1887 | |
---|
| 1888 | if( ($this->supress_zerolabel && ($l + 0)==0) || |
---|
| 1889 | ($this->supress_first && $i==0) || |
---|
| 1890 | ($this->supress_last && $i==$nbrmajticks-1) ) |
---|
| 1891 | $l=""; |
---|
| 1892 | $this->maj_ticks_label[$i]=$l; |
---|
| 1893 | $label+=$this->major_step; |
---|
| 1894 | |
---|
| 1895 | // The x-position of the tick marks can be different from the labels. |
---|
| 1896 | // Note that we record the tick position (not the label) so that the grid |
---|
| 1897 | // happen upon tick marks and not labels. |
---|
| 1898 | $xtick=$scale->scale_abs[0]+$start_abs+$i*$maj_step_abs+$this->xtick_offset*$min_step_abs; |
---|
| 1899 | $this->maj_ticks_pos[$i]=ceil($xtick); |
---|
| 1900 | if(!($this->xtick_offset > 0 && $i==$nbrmajticks-1) && !$this->supress_tickmarks) { |
---|
| 1901 | if( $this->majcolor!="" ) $img->PushColor($this->majcolor); |
---|
| 1902 | $img->Line($xtick,$pos,$xtick,$yu); |
---|
| 1903 | if( $this->majcolor!="" ) $img->PopColor(); |
---|
| 1904 | } |
---|
| 1905 | } |
---|
| 1906 | // Draw the minor tick marks |
---|
| 1907 | |
---|
| 1908 | $yu = $pos - $this->direction*$this->GetMinTickAbsSize(); |
---|
| 1909 | $label = $scale->GetMinVal(); |
---|
| 1910 | for( $i=0,$x=$scale->scale_abs[0]; $x<$limit; ++$i ) { |
---|
| 1911 | $x=$scale->scale_abs[0]+$i*$min_step_abs; |
---|
| 1912 | $this->ticks_pos[]=$x; |
---|
| 1913 | $this->ticks_label[]=$label; |
---|
| 1914 | $label+=$this->minor_step; |
---|
| 1915 | if( !$this->supress_tickmarks && !$this->supress_minor_tickmarks) { |
---|
| 1916 | if( $this->mincolor!="" ) $img->PushColor($this->mincolor); |
---|
| 1917 | $img->Line($x,$pos,$x,$yu); |
---|
| 1918 | if( $this->mincolor!="" ) $img->PopColor(); |
---|
| 1919 | } |
---|
| 1920 | } |
---|
| 1921 | } |
---|
| 1922 | elseif( $scale->type == "y" ) { |
---|
| 1923 | // Draw the major tick marks |
---|
| 1924 | $xr = $pos + $this->direction*$this->GetMajTickAbsSize(); |
---|
| 1925 | $label = $scale->GetMinVal(); |
---|
| 1926 | for( $i=0; $i<$nbrmajticks; ++$i) { |
---|
| 1927 | $y=$scale->scale_abs[0]+$i*$maj_step_abs; |
---|
| 1928 | |
---|
| 1929 | // THe following two lines might seem to be unecessary but they are not! |
---|
| 1930 | // The reason being that for X-axis we separate the position of the labels |
---|
| 1931 | // and the tick marks which we don't do for the Y-axis. |
---|
| 1932 | // We therefore need to make sure both arrays are corcectly filled |
---|
| 1933 | // since Axis::StrokeLabels() uses the label positions and Grid::Stroke() uses |
---|
| 1934 | // the tick positions. |
---|
| 1935 | $this->maj_ticklabels_pos[$i]=$y; |
---|
| 1936 | $this->maj_ticks_pos[$i]=$y; |
---|
| 1937 | |
---|
| 1938 | if( $this->label_formfunc != "" ) { |
---|
| 1939 | $f=$this->label_formfunc; |
---|
| 1940 | $l = $f($label); |
---|
| 1941 | } |
---|
| 1942 | elseif( $this->label_formatstr != "" ) |
---|
| 1943 | $l = sprintf($this->label_formatstr,$label); |
---|
| 1944 | else |
---|
| 1945 | $l = sprintf("%01.".$precision."f",round($label,$precision)); |
---|
| 1946 | |
---|
| 1947 | if( ($this->supress_zerolabel && ($l + 0)==0) || |
---|
| 1948 | ($this->supress_first && $i==0) || |
---|
| 1949 | ($this->supress_last && $i==$nbrmajticks-1) ) |
---|
| 1950 | $l=""; |
---|
| 1951 | $this->maj_ticks_label[$i]=$l; |
---|
| 1952 | $label+=$this->major_step; |
---|
| 1953 | if( !$this->supress_tickmarks ) { |
---|
| 1954 | if( $this->majcolor!="" ) $img->PushColor($this->majcolor); |
---|
| 1955 | $img->Line($pos,$y,$xr,$y); |
---|
| 1956 | if( $this->majcolor!="" ) $img->PopColor(); |
---|
| 1957 | } |
---|
| 1958 | } |
---|
| 1959 | // Draw the minor tick marks |
---|
| 1960 | $xr = $pos + $this->direction*$this->GetMinTickAbsSize(); |
---|
| 1961 | $label = $scale->GetMinVal(); |
---|
| 1962 | for( $i=0,$y=$scale->scale_abs[0]; $y>=$limit; ) { |
---|
| 1963 | $this->ticks_pos[$i]=$y; |
---|
| 1964 | $this->ticks_label[$i]=$label; |
---|
| 1965 | $label+=$this->minor_step; |
---|
| 1966 | if( !$this->supress_tickmarks && !$this->supress_minor_tickmarks) { |
---|
| 1967 | if( $this->mincolor!="" ) $img->PushColor($this->mincolor); |
---|
| 1968 | $img->Line($pos,$y,$xr,$y); |
---|
| 1969 | if( $this->mincolor!="" ) $img->PopColor(); |
---|
| 1970 | } |
---|
| 1971 | ++$i; |
---|
| 1972 | $y=$scale->scale_abs[0]+$i*$min_step_abs; |
---|
| 1973 | } |
---|
| 1974 | } |
---|
| 1975 | } |
---|
| 1976 | //--------------- |
---|
| 1977 | // PRIVATE METHODS |
---|
| 1978 | // Spoecify the offset of the displayed tick mark with the tick "space" |
---|
| 1979 | // Legal values for $o is [0,1] used to adjust where the tick marks and label |
---|
| 1980 | // should be positioned within the major tick-size |
---|
| 1981 | // $lo specifies the label offset and $to specifies the tick offset |
---|
| 1982 | // this comes in handy for example in bar graphs where we wont no offset for the |
---|
| 1983 | // tick but have the labels displayed halfway under the bars. |
---|
| 1984 | function SetXLabelOffset($aLabelOff,$aTickOff=-1) { |
---|
| 1985 | $this->xlabel_offset=$aLabelOff; |
---|
| 1986 | if( $aTickOff==-1 ) // Same as label offset |
---|
| 1987 | $this->xtick_offset=$aLabelOff; |
---|
| 1988 | else |
---|
| 1989 | $this->xtick_offset=$aTickOff; |
---|
| 1990 | if( $aLabelOff>0 ) |
---|
| 1991 | $this->SupressLast(); // The last tick wont fit |
---|
| 1992 | } |
---|
| 1993 | |
---|
| 1994 | // Which tick label should we start with? |
---|
| 1995 | function SetTextLabelStart($aTextLabelOff) { |
---|
| 1996 | $this->text_label_start=$aTextLabelOff; |
---|
| 1997 | } |
---|
| 1998 | |
---|
| 1999 | } // Class |
---|
| 2000 | |
---|
| 2001 | //=================================================== |
---|
| 2002 | // CLASS LinearScale |
---|
| 2003 | // Description: Handle linear scaling between screen and world |
---|
| 2004 | //=================================================== |
---|
| 2005 | class LinearScale { |
---|
| 2006 | var $scale=array(0,0); |
---|
| 2007 | var $scale_abs=array(0,0); |
---|
| 2008 | var $scale_factor; // Scale factor between world and screen |
---|
| 2009 | var $world_size; // Plot area size in world coordinates |
---|
| 2010 | var $world_abs_size; // Plot area size in pixels |
---|
| 2011 | var $off; // Offset between image edge and plot area |
---|
| 2012 | var $type; // is this x or y scale ? |
---|
| 2013 | var $ticks=null; // Store ticks |
---|
| 2014 | var $autoscale_min=false; // Forced minimum value, useful to let user force 0 as start and autoscale max |
---|
| 2015 | var $gracetop=0,$gracebottom=0; |
---|
| 2016 | var $intscale=false; // Restrict autoscale to integers |
---|
| 2017 | //--------------- |
---|
| 2018 | // CONSTRUCTOR |
---|
| 2019 | function LinearScale($aMin=0,$aMax=0,$aType="y") { |
---|
| 2020 | assert($aType=="x" || $aType=="y" ); |
---|
| 2021 | assert($aMin<=$aMax); |
---|
| 2022 | |
---|
| 2023 | $this->type=$aType; |
---|
| 2024 | $this->scale=array($aMin,$aMax); |
---|
| 2025 | $this->world_size=$aMax-$aMin; |
---|
| 2026 | $this->ticks = new LinearTicks(); |
---|
| 2027 | } |
---|
| 2028 | |
---|
| 2029 | //--------------- |
---|
| 2030 | // PUBLIC METHODS |
---|
| 2031 | // Second phase constructor |
---|
| 2032 | function Init(&$aImg) { |
---|
| 2033 | $this->InitConstants($aImg); |
---|
| 2034 | // We want image to notify us when the margins changes so we |
---|
| 2035 | // can recalculate the constants. |
---|
| 2036 | // PHP <= 4.04 BUGWARNING: IT IS IMPOSSIBLE TO DO THIS IN THE CONSTRUCTOR |
---|
| 2037 | // SINCE (FOR SOME REASON) IT IS IMPOSSIBLE TO PASS A REFERENCE |
---|
| 2038 | // TO 'this' INSTEAD IT WILL ADD AN ANONYMOUS COPY OF THIS OBJECT WHICH WILL |
---|
| 2039 | // GET ALL THE NOTIFICATIONS. (This took a while to track down...) |
---|
| 2040 | |
---|
| 2041 | // Add us as an observer to class Image |
---|
| 2042 | $aImg->AddObserver("InitConstants",$this); |
---|
| 2043 | } |
---|
| 2044 | |
---|
| 2045 | // Check if scale is set or if we should autoscale |
---|
| 2046 | // We should do this is either scale or ticks has not been set |
---|
| 2047 | function IsSpecified() { |
---|
| 2048 | if( $this->GetMinVal()==$this->GetMaxVal() ) { // Scale not set |
---|
| 2049 | return false; |
---|
| 2050 | } |
---|
| 2051 | return true; |
---|
| 2052 | } |
---|
| 2053 | |
---|
| 2054 | // Set the minimum data value when the autoscaling is used. |
---|
| 2055 | // Usefull if you want a fix minimum (like 0) but automtic maximum |
---|
| 2056 | function SetAutoMin($aMin) { |
---|
| 2057 | $this->autoscale_min=$aMin; |
---|
| 2058 | } |
---|
| 2059 | |
---|
| 2060 | // Specify scale "grace" value (top and bottom) |
---|
| 2061 | function SetGrace($aGraceTop,$aGraceBottom=0) { |
---|
| 2062 | if( $aGraceTop<0 || $aGraceBottom < 0 ) |
---|
| 2063 | JpGraphError::Raise("<b>JpGraph Error:</b> Grace must be larger then 0"); |
---|
| 2064 | $this->gracetop=$aGraceTop; |
---|
| 2065 | $this->gracebottom=$aGraceBottom; |
---|
| 2066 | } |
---|
| 2067 | |
---|
| 2068 | // Get the minimum value in the scale |
---|
| 2069 | function GetMinVal() { |
---|
| 2070 | return $this->scale[0]; |
---|
| 2071 | } |
---|
| 2072 | |
---|
| 2073 | // get maximum value for scale |
---|
| 2074 | function GetMaxVal() { |
---|
| 2075 | return $this->scale[1]; |
---|
| 2076 | } |
---|
| 2077 | |
---|
| 2078 | // Specify a new min/max value for sclae |
---|
| 2079 | function Update(&$aImg,$aMin,$aMax) { |
---|
| 2080 | $this->scale=array($aMin,$aMax); |
---|
| 2081 | $this->world_size=$aMax-$aMin; |
---|
| 2082 | $this->InitConstants($aImg); |
---|
| 2083 | } |
---|
| 2084 | |
---|
| 2085 | // Translate between world and screen |
---|
| 2086 | function Translate($aCoord) { |
---|
| 2087 | return $this->off+round(($aCoord*1.0 - $this->GetMinVal()) * $this->scale_factor,0); |
---|
| 2088 | } |
---|
| 2089 | |
---|
| 2090 | // Relative translate (don't include offset) usefull when we just want |
---|
| 2091 | // to know the relative position (in pixels) on the axis |
---|
| 2092 | function RelTranslate($aCoord) { |
---|
| 2093 | return round(($aCoord*1.0 - $this->GetMinVal()) * $this->scale_factor,0); |
---|
| 2094 | } |
---|
| 2095 | |
---|
| 2096 | // Restrict autoscaling to only use integers |
---|
| 2097 | function SetIntScale($aIntScale=true) { |
---|
| 2098 | $this->intscale=$aIntScale; |
---|
| 2099 | } |
---|
| 2100 | |
---|
| 2101 | // Calculate an integer autoscale |
---|
| 2102 | function IntAutoScale(&$img,$min,$max,$maxsteps,$majend=true) { |
---|
| 2103 | // Make sure limits are integers |
---|
| 2104 | $min=floor($min); |
---|
| 2105 | $max=ceil($max); |
---|
| 2106 | if( abs($min-$max)==0 ) { |
---|
| 2107 | --$min; ++$max; |
---|
| 2108 | } |
---|
| 2109 | $gracetop=ceil(($this->gracetop/100.0))*abs($max-$min); |
---|
| 2110 | $gracebottom=ceil(($this->gracebottom/100.0))*abs($max-$min); |
---|
| 2111 | if( is_numeric($this->autoscale_min) ) { |
---|
| 2112 | $min = ceil($this->autoscale_min); |
---|
| 2113 | if( abs($min-$max ) == 0 ) { |
---|
| 2114 | ++$max; |
---|
| 2115 | --$min; |
---|
| 2116 | } |
---|
| 2117 | } |
---|
| 2118 | |
---|
| 2119 | $min -= $gracebottom; |
---|
| 2120 | $max += $gracetop; |
---|
| 2121 | |
---|
| 2122 | // First get tickmarks as multiples of 1, 10, ... |
---|
| 2123 | list($num1steps,$adj1min,$adj1max,$maj1step) = |
---|
| 2124 | $this->IntCalcTicks($maxsteps,$min,$max,1); |
---|
| 2125 | |
---|
| 2126 | // Then get tick marks as 2:s 2, 20, ... |
---|
| 2127 | list($num2steps,$adj2min,$adj2max,$maj2step) = |
---|
| 2128 | $this->IntCalcTicks($maxsteps,$min,$max,5); |
---|
| 2129 | |
---|
| 2130 | // Then get tickmarks as 5:s 5, 50, 500, ... |
---|
| 2131 | list($num5steps,$adj5min,$adj5max,$maj5step) = |
---|
| 2132 | $this->IntCalcTicks($maxsteps,$min,$max,2); |
---|
| 2133 | |
---|
| 2134 | // Check to see whichof 1:s, 2:s or 5:s fit better with |
---|
| 2135 | // the requested number of major ticks |
---|
| 2136 | $match1=abs($num1steps-$maxsteps); |
---|
| 2137 | $match2=abs($num2steps-$maxsteps); |
---|
| 2138 | if( $maj5step > 1 ) |
---|
| 2139 | $match5=abs($num5steps-$maxsteps); |
---|
| 2140 | else |
---|
| 2141 | $match5=1000000; // Dummy high value |
---|
| 2142 | |
---|
| 2143 | // Compare these three values and see which is the closest match |
---|
| 2144 | // We use a 0.6 weight to gravitate towards multiple of 5:s |
---|
| 2145 | if( $match1 < $match2 ) { |
---|
| 2146 | if( $match1 < $match5 ) |
---|
| 2147 | $r=1; |
---|
| 2148 | else |
---|
| 2149 | $r=3; |
---|
| 2150 | } |
---|
| 2151 | else { |
---|
| 2152 | if( $match2 < $match5 ) |
---|
| 2153 | $r=2; |
---|
| 2154 | else |
---|
| 2155 | $r=3; |
---|
| 2156 | } |
---|
| 2157 | |
---|
| 2158 | // Minsteps are always the same as maxsteps for integer scale |
---|
| 2159 | switch( $r ) { |
---|
| 2160 | case 1: |
---|
| 2161 | $this->Update($img,$adj1min,$adj1max); |
---|
| 2162 | $this->ticks->Set($maj1step,$maj1step); |
---|
| 2163 | break; |
---|
| 2164 | case 2: |
---|
| 2165 | $this->Update($img,$adj2min,$adj2max); |
---|
| 2166 | $this->ticks->Set($maj2step,$maj2step); |
---|
| 2167 | break; |
---|
| 2168 | case 3: |
---|
| 2169 | $this->Update($img,$adj5min,$adj5max); |
---|
| 2170 | $this->ticks->Set($maj5step,$maj2step); |
---|
| 2171 | break; |
---|
| 2172 | } |
---|
| 2173 | } |
---|
| 2174 | |
---|
| 2175 | |
---|
| 2176 | // Calculate autoscale. Used if user hasn't given a scale and ticks |
---|
| 2177 | // $maxsteps is the maximum number of major tickmarks allowed. |
---|
| 2178 | function AutoScale(&$img,$min,$max,$maxsteps,$majend=true) { |
---|
| 2179 | if( $this->intscale ) { |
---|
| 2180 | $this->IntAutoScale($img,$min,$max,$maxsteps,$majend); |
---|
| 2181 | return; |
---|
| 2182 | } |
---|
| 2183 | if( abs($min-$max) < 0.00001 ) { |
---|
| 2184 | // We need some difference to be able to autoscale |
---|
| 2185 | // make it 5% above and 5% below value |
---|
| 2186 | if( $min==0 && $max==0 ) { // Special case |
---|
| 2187 | $min=-1; $max=1; |
---|
| 2188 | } |
---|
| 2189 | else { |
---|
| 2190 | $delta = abs($max-$min)*0.05; |
---|
| 2191 | $min -= $delta; |
---|
| 2192 | $max += $delta; |
---|
| 2193 | } |
---|
| 2194 | } |
---|
| 2195 | |
---|
| 2196 | $gracetop=($this->gracetop/100.0)*abs($max-$min); |
---|
| 2197 | $gracebottom=($this->gracebottom/100.0)*abs($max-$min); |
---|
| 2198 | if( is_numeric($this->autoscale_min) ) { |
---|
| 2199 | $min = $this->autoscale_min; |
---|
| 2200 | if( abs($min-$max ) < 0.00001 ) |
---|
| 2201 | $max *= 1.05; |
---|
| 2202 | } |
---|
| 2203 | $min -= $gracebottom; |
---|
| 2204 | $max += $gracetop; |
---|
| 2205 | |
---|
| 2206 | // First get tickmarks as multiples of 0.1, 1, 10, ... |
---|
| 2207 | list($num1steps,$adj1min,$adj1max,$min1step,$maj1step) = |
---|
| 2208 | $this->CalcTicks($maxsteps,$min,$max,1,2); |
---|
| 2209 | |
---|
| 2210 | // Then get tick marks as 2:s 0.2, 2, 20, ... |
---|
| 2211 | list($num2steps,$adj2min,$adj2max,$min2step,$maj2step) = |
---|
| 2212 | $this->CalcTicks($maxsteps,$min,$max,5,2); |
---|
| 2213 | |
---|
| 2214 | // Then get tickmarks as 5:s 0.05, 0.5, 5, 50, ... |
---|
| 2215 | list($num5steps,$adj5min,$adj5max,$min5step,$maj5step) = |
---|
| 2216 | $this->CalcTicks($maxsteps,$min,$max,2,5); |
---|
| 2217 | |
---|
| 2218 | // Check to see whichof 1:s, 2:s or 5:s fit better with |
---|
| 2219 | // the requested number of major ticks |
---|
| 2220 | $match1=abs($num1steps-$maxsteps); |
---|
| 2221 | $match2=abs($num2steps-$maxsteps); |
---|
| 2222 | $match5=abs($num5steps-$maxsteps); |
---|
| 2223 | // Compare these three values and see which is the closest match |
---|
| 2224 | // We use a 0.8 weight to gravitate towards multiple of 5:s |
---|
| 2225 | $r=$this->MatchMin3($match1,$match2,$match5,0.8); |
---|
| 2226 | switch( $r ) { |
---|
| 2227 | case 1: |
---|
| 2228 | $this->Update($img,$adj1min,$adj1max); |
---|
| 2229 | $this->ticks->Set($maj1step,$min1step); |
---|
| 2230 | break; |
---|
| 2231 | case 2: |
---|
| 2232 | $this->Update($img,$adj2min,$adj2max); |
---|
| 2233 | $this->ticks->Set($maj2step,$min2step); |
---|
| 2234 | break; |
---|
| 2235 | case 3: |
---|
| 2236 | $this->Update($img,$adj5min,$adj5max); |
---|
| 2237 | $this->ticks->Set($maj5step,$min5step); |
---|
| 2238 | break; |
---|
| 2239 | } |
---|
| 2240 | } |
---|
| 2241 | |
---|
| 2242 | //--------------- |
---|
| 2243 | // PRIVATE METHODS |
---|
| 2244 | |
---|
| 2245 | // This method recalculates all constants that are depending on the |
---|
| 2246 | // margins in the image. If the margins in the image are changed |
---|
| 2247 | // this method should be called for every scale that is registred with |
---|
| 2248 | // that image. Should really be installed as an observer of that image. |
---|
| 2249 | function InitConstants(&$img) { |
---|
| 2250 | if( $this->type=="x" ) { |
---|
| 2251 | $this->world_abs_size=$img->width - $img->left_margin - $img->right_margin; |
---|
| 2252 | $this->off=$img->left_margin; |
---|
| 2253 | $this->scale_factor = 0; |
---|
| 2254 | if( $this->world_size > 0 ) |
---|
| 2255 | $this->scale_factor=$this->world_abs_size/($this->world_size*1.0); |
---|
| 2256 | } |
---|
| 2257 | else { // y scale |
---|
| 2258 | $this->world_abs_size=$img->height - $img->top_margin - $img->bottom_margin; |
---|
| 2259 | $this->off=$img->top_margin+$this->world_abs_size; |
---|
| 2260 | $this->scale_factor = 0; |
---|
| 2261 | if( $this->world_size > 0 ) |
---|
| 2262 | $this->scale_factor=-$this->world_abs_size/($this->world_size*1.0); |
---|
| 2263 | } |
---|
| 2264 | $size = $this->world_size * $this->scale_factor; |
---|
| 2265 | $this->scale_abs=array($this->off,$this->off + $size); |
---|
| 2266 | } |
---|
| 2267 | |
---|
| 2268 | // Initialize the conversion constants for this scale |
---|
| 2269 | // This tries to pre-calculate as much as possible to speed up the |
---|
| 2270 | // actual conversion (with Translate()) later on |
---|
| 2271 | // $start =scale start in absolute pixels (for x-scale this is an y-position |
---|
| 2272 | // and for an y-scale this is an x-position |
---|
| 2273 | // $len =absolute length in pixels of scale |
---|
| 2274 | function SetConstants($aStart,$aLen) { |
---|
| 2275 | $this->world_abs_size=$aLen; |
---|
| 2276 | $this->off=$aStart; |
---|
| 2277 | |
---|
| 2278 | if( $this->world_size<=0 ) { |
---|
| 2279 | JpGraphError::Raise("<b>JpGraph Fatal Error</b>:<br> |
---|
| 2280 | You have unfortunately stumbled upon a bug in JpGraph. <br> |
---|
| 2281 | It seems like the scale range is ".$this->world_size." [for ". |
---|
| 2282 | $this->type." scale] <br> |
---|
| 2283 | Please report Bug #01 to jpgraph@aditus.nu and include the script |
---|
| 2284 | that gave this error. <br> |
---|
| 2285 | This problem could potentially be caused by trying to use \"illegal\" |
---|
| 2286 | values in the input data arrays (like trying to send in strings or |
---|
| 2287 | only NULL values) which causes the autoscaling to fail."); |
---|
| 2288 | } |
---|
| 2289 | |
---|
| 2290 | // scale_factor = number of pixels per world unit |
---|
| 2291 | $this->scale_factor=$this->world_abs_size/($this->world_size*1.0); |
---|
| 2292 | |
---|
| 2293 | // scale_abs = start and end points of scale in absolute pixels |
---|
| 2294 | $this->scale_abs=array($this->off,$this->off+$this->world_size*$this->scale_factor); |
---|
| 2295 | } |
---|
| 2296 | |
---|
| 2297 | |
---|
| 2298 | // Calculate number of ticks steps with a specific division |
---|
| 2299 | // $a is the divisor of 10**x to generate the first maj tick intervall |
---|
| 2300 | // $a=1, $b=2 give major ticks with multiple of 10, ...,0.1,1,10,... |
---|
| 2301 | // $a=5, $b=2 give major ticks with multiple of 2:s ...,0.2,2,20,... |
---|
| 2302 | // $a=2, $b=5 give major ticks with multiple of 5:s ...,0.5,5,50,... |
---|
| 2303 | // We return a vector of |
---|
| 2304 | // [$numsteps,$adjmin,$adjmax,$minstep,$majstep] |
---|
| 2305 | // If $majend==true then the first and last marks on the axis will be major |
---|
| 2306 | // labeled tick marks otherwise it will be adjusted to the closest min tick mark |
---|
| 2307 | function CalcTicks($maxsteps,$min,$max,$a,$b,$majend=true) { |
---|
| 2308 | $diff=$max-$min; |
---|
| 2309 | if( $diff==0 ) |
---|
| 2310 | $ld=0; |
---|
| 2311 | else |
---|
| 2312 | $ld=floor(log10($diff)); |
---|
| 2313 | |
---|
| 2314 | // Gravitate min towards zero if we are close |
---|
| 2315 | if( $min>0 && $min < pow(10,$ld) ) $min=0; |
---|
| 2316 | |
---|
| 2317 | $majstep=pow(10,$ld-1)/$a; |
---|
| 2318 | $minstep=$majstep/$b; |
---|
| 2319 | $adjmax=ceil($max/$minstep)*$minstep; |
---|
| 2320 | $adjmin=floor($min/$minstep)*$minstep; |
---|
| 2321 | $adjdiff = $adjmax-$adjmin; |
---|
| 2322 | $numsteps=$adjdiff/$majstep; |
---|
| 2323 | while( $numsteps>$maxsteps ) { |
---|
| 2324 | $majstep=pow(10,$ld)/$a; |
---|
| 2325 | $numsteps=$adjdiff/$majstep; |
---|
| 2326 | ++$ld; |
---|
| 2327 | } |
---|
| 2328 | |
---|
| 2329 | $minstep=$majstep/$b; |
---|
| 2330 | $adjmin=floor($min/$minstep)*$minstep; |
---|
| 2331 | $adjdiff = $adjmax-$adjmin; |
---|
| 2332 | if( $majend ) { |
---|
| 2333 | $adjmin = floor($min/$majstep)*$majstep; |
---|
| 2334 | $adjdiff = $adjmax-$adjmin; |
---|
| 2335 | $adjmax = ceil($adjdiff/$majstep)*$majstep+$adjmin; |
---|
| 2336 | } |
---|
| 2337 | else |
---|
| 2338 | $adjmax=ceil($max/$minstep)*$minstep; |
---|
| 2339 | |
---|
| 2340 | return array($numsteps,$adjmin,$adjmax,$minstep,$majstep); |
---|
| 2341 | } |
---|
| 2342 | |
---|
| 2343 | function IntCalcTicks($maxsteps,$min,$max,$a,$majend=true) { |
---|
| 2344 | $diff=$max-$min; |
---|
| 2345 | if( $diff==0 ) |
---|
| 2346 | $ld=0; |
---|
| 2347 | else |
---|
| 2348 | $ld=floor(log10($diff)); |
---|
| 2349 | |
---|
| 2350 | // Gravitate min towards zero if we are close |
---|
| 2351 | if( $min>0 && $min < pow(10,$ld) ) $min=0; |
---|
| 2352 | |
---|
| 2353 | $majstep=pow(10,$ld-1)/$a; |
---|
| 2354 | $adjmax=ceil($max/$majstep)*$majstep; |
---|
| 2355 | $adjmin=floor($min/$majstep)*$majstep; |
---|
| 2356 | $adjdiff = $adjmax-$adjmin; |
---|
| 2357 | $numsteps=$adjdiff/$majstep; |
---|
| 2358 | while( $numsteps>$maxsteps ) { |
---|
| 2359 | $majstep=pow(10,$ld)/$a; |
---|
| 2360 | $numsteps=$adjdiff/$majstep; |
---|
| 2361 | ++$ld; |
---|
| 2362 | } |
---|
| 2363 | |
---|
| 2364 | $adjmin=floor($min/$majstep)*$majstep; |
---|
| 2365 | $adjdiff = $adjmax-$adjmin; |
---|
| 2366 | if( $majend ) { |
---|
| 2367 | $adjmin = floor($min/$majstep)*$majstep; |
---|
| 2368 | $adjdiff = $adjmax-$adjmin; |
---|
| 2369 | $adjmax = ceil($adjdiff/$majstep)*$majstep+$adjmin; |
---|
| 2370 | } |
---|
| 2371 | else |
---|
| 2372 | $adjmax=ceil($max/$majstep)*$majstep; |
---|
| 2373 | |
---|
| 2374 | return array($numsteps,$adjmin,$adjmax,$majstep); |
---|
| 2375 | } |
---|
| 2376 | |
---|
| 2377 | |
---|
| 2378 | |
---|
| 2379 | // Determine the minimum of three values witha weight for last value |
---|
| 2380 | function MatchMin3($a,$b,$c,$weight) { |
---|
| 2381 | if( $a < $b ) { |
---|
| 2382 | if( $a < ($c*$weight) ) |
---|
| 2383 | return 1; // $a smallest |
---|
| 2384 | else |
---|
| 2385 | return 3; // $c smallest |
---|
| 2386 | } |
---|
| 2387 | elseif( $b < ($c*$weight) ) |
---|
| 2388 | return 2; // $b smallest |
---|
| 2389 | return 3; // $c smallest |
---|
| 2390 | } |
---|
| 2391 | } // Class |
---|
| 2392 | |
---|
| 2393 | //=================================================== |
---|
| 2394 | // CLASS RGB |
---|
| 2395 | // Description: Color definitions as RGB triples |
---|
| 2396 | //=================================================== |
---|
| 2397 | class RGB { |
---|
| 2398 | var $rgb_table; |
---|
| 2399 | var $img; |
---|
| 2400 | function RGB(&$aImg) { |
---|
| 2401 | $this->img = $aImg; |
---|
| 2402 | |
---|
| 2403 | // Conversion array between color names and RGB |
---|
| 2404 | $this->rgb_table = array( |
---|
| 2405 | "aqua"=> array(0,255,255), |
---|
| 2406 | "lime"=> array(0,255,0), |
---|
| 2407 | "teal"=> array(0,128,128), |
---|
| 2408 | "whitesmoke"=>array(245,245,245), |
---|
| 2409 | "gainsboro"=>array(220,220,220), |
---|
| 2410 | "oldlace"=>array(253,245,230), |
---|
| 2411 | "linen"=>array(250,240,230), |
---|
| 2412 | "antiquewhite"=>array(250,235,215), |
---|
| 2413 | "papayawhip"=>array(255,239,213), |
---|
| 2414 | "blanchedalmond"=>array(255,235,205), |
---|
| 2415 | "bisque"=>array(255,228,196), |
---|
| 2416 | "peachpuff"=>array(255,218,185), |
---|
| 2417 | "navajowhite"=>array(255,222,173), |
---|
| 2418 | "moccasin"=>array(255,228,181), |
---|
| 2419 | "cornsilk"=>array(255,248,220), |
---|
| 2420 | "ivory"=>array(255,255,240), |
---|
| 2421 | "lemonchiffon"=>array(255,250,205), |
---|
| 2422 | "seashell"=>array(255,245,238), |
---|
| 2423 | "mintcream"=>array(245,255,250), |
---|
| 2424 | "azure"=>array(240,255,255), |
---|
| 2425 | "aliceblue"=>array(240,248,255), |
---|
| 2426 | "lavender"=>array(230,230,250), |
---|
| 2427 | "lavenderblush"=>array(255,240,245), |
---|
| 2428 | "mistyrose"=>array(255,228,225), |
---|
| 2429 | "white"=>array(255,255,255), |
---|
| 2430 | "black"=>array(0,0,0), |
---|
| 2431 | "darkslategray"=>array(47,79,79), |
---|
| 2432 | "dimgray"=>array(105,105,105), |
---|
| 2433 | "slategray"=>array(112,128,144), |
---|
| 2434 | "lightslategray"=>array(119,136,153), |
---|
| 2435 | "gray"=>array(190,190,190), |
---|
| 2436 | "lightgray"=>array(211,211,211), |
---|
| 2437 | "midnightblue"=>array(25,25,112), |
---|
| 2438 | "navy"=>array(0,0,128), |
---|
| 2439 | "cornflowerblue"=>array(100,149,237), |
---|
| 2440 | "darkslateblue"=>array(72,61,139), |
---|
| 2441 | "slateblue"=>array(106,90,205), |
---|
| 2442 | "mediumslateblue"=>array(123,104,238), |
---|
| 2443 | "lightslateblue"=>array(132,112,255), |
---|
| 2444 | "mediumblue"=>array(0,0,205), |
---|
| 2445 | "royalblue"=>array(65,105,225), |
---|
| 2446 | "blue"=>array(0,0,255), |
---|
| 2447 | "dodgerblue"=>array(30,144,255), |
---|
| 2448 | "deepskyblue"=>array(0,191,255), |
---|
| 2449 | "skyblue"=>array(135,206,235), |
---|
| 2450 | "lightskyblue"=>array(135,206,250), |
---|
| 2451 | "steelblue"=>array(70,130,180), |
---|
| 2452 | "lightred"=>array(211,167,168), |
---|
| 2453 | "lightsteelblue"=>array(176,196,222), |
---|
| 2454 | "lightblue"=>array(173,216,230), |
---|
| 2455 | "powderblue"=>array(176,224,230), |
---|
| 2456 | "paleturquoise"=>array(175,238,238), |
---|
| 2457 | "darkturquoise"=>array(0,206,209), |
---|
| 2458 | "mediumturquoise"=>array(72,209,204), |
---|
| 2459 | "turquoise"=>array(64,224,208), |
---|
| 2460 | "cyan"=>array(0,255,255), |
---|
| 2461 | "lightcyan"=>array(224,255,255), |
---|
| 2462 | "cadetblue"=>array(95,158,160), |
---|
| 2463 | "mediumaquamarine"=>array(102,205,170), |
---|
| 2464 | "aquamarine"=>array(127,255,212), |
---|
| 2465 | "darkgreen"=>array(0,100,0), |
---|
| 2466 | "darkolivegreen"=>array(85,107,47), |
---|
| 2467 | "darkseagreen"=>array(143,188,143), |
---|
| 2468 | "seagreen"=>array(46,139,87), |
---|
| 2469 | "mediumseagreen"=>array(60,179,113), |
---|
| 2470 | "lightseagreen"=>array(32,178,170), |
---|
| 2471 | "palegreen"=>array(152,251,152), |
---|
| 2472 | "springgreen"=>array(0,255,127), |
---|
| 2473 | "lawngreen"=>array(124,252,0), |
---|
| 2474 | "green"=>array(0,255,0), |
---|
| 2475 | "chartreuse"=>array(127,255,0), |
---|
| 2476 | "mediumspringgreen"=>array(0,250,154), |
---|
| 2477 | "greenyellow"=>array(173,255,47), |
---|
| 2478 | "limegreen"=>array(50,205,50), |
---|
| 2479 | "yellowgreen"=>array(154,205,50), |
---|
| 2480 | "forestgreen"=>array(34,139,34), |
---|
| 2481 | "olivedrab"=>array(107,142,35), |
---|
| 2482 | "darkkhaki"=>array(189,183,107), |
---|
| 2483 | "khaki"=>array(240,230,140), |
---|
| 2484 | "palegoldenrod"=>array(238,232,170), |
---|
| 2485 | "lightgoldenrodyellow"=>array(250,250,210), |
---|
| 2486 | "lightyellow"=>array(255,255,200), |
---|
| 2487 | "yellow"=>array(255,255,0), |
---|
| 2488 | "gold"=>array(255,215,0), |
---|
| 2489 | "lightgoldenrod"=>array(238,221,130), |
---|
| 2490 | "goldenrod"=>array(218,165,32), |
---|
| 2491 | "darkgoldenrod"=>array(184,134,11), |
---|
| 2492 | "rosybrown"=>array(188,143,143), |
---|
| 2493 | "indianred"=>array(205,92,92), |
---|
| 2494 | "saddlebrown"=>array(139,69,19), |
---|
| 2495 | "sienna"=>array(160,82,45), |
---|
| 2496 | "peru"=>array(205,133,63), |
---|
| 2497 | "burlywood"=>array(222,184,135), |
---|
| 2498 | "beige"=>array(245,245,220), |
---|
| 2499 | "wheat"=>array(245,222,179), |
---|
| 2500 | "sandybrown"=>array(244,164,96), |
---|
| 2501 | "tan"=>array(210,180,140), |
---|
| 2502 | "chocolate"=>array(210,105,30), |
---|
| 2503 | "firebrick"=>array(178,34,34), |
---|
| 2504 | "brown"=>array(165,42,42), |
---|
| 2505 | "darksalmon"=>array(233,150,122), |
---|
| 2506 | "salmon"=>array(250,128,114), |
---|
| 2507 | "lightsalmon"=>array(255,160,122), |
---|
| 2508 | "orange"=>array(255,165,0), |
---|
| 2509 | "darkorange"=>array(255,140,0), |
---|
| 2510 | "coral"=>array(255,127,80), |
---|
| 2511 | "lightcoral"=>array(240,128,128), |
---|
| 2512 | "tomato"=>array(255,99,71), |
---|
| 2513 | "orangered"=>array(255,69,0), |
---|
| 2514 | "red"=>array(255,0,0), |
---|
| 2515 | "hotpink"=>array(255,105,180), |
---|
| 2516 | "deeppink"=>array(255,20,147), |
---|
| 2517 | "pink"=>array(255,192,203), |
---|
| 2518 | "lightpink"=>array(255,182,193), |
---|
| 2519 | "palevioletred"=>array(219,112,147), |
---|
| 2520 | "maroon"=>array(176,48,96), |
---|
| 2521 | "mediumvioletred"=>array(199,21,133), |
---|
| 2522 | "violetred"=>array(208,32,144), |
---|
| 2523 | "magenta"=>array(255,0,255), |
---|
| 2524 | "violet"=>array(238,130,238), |
---|
| 2525 | "plum"=>array(221,160,221), |
---|
| 2526 | "orchid"=>array(218,112,214), |
---|
| 2527 | "mediumorchid"=>array(186,85,211), |
---|
| 2528 | "darkorchid"=>array(153,50,204), |
---|
| 2529 | "darkviolet"=>array(148,0,211), |
---|
| 2530 | "blueviolet"=>array(138,43,226), |
---|
| 2531 | "purple"=>array(160,32,240), |
---|
| 2532 | "mediumpurple"=>array(147,112,219), |
---|
| 2533 | "thistle"=>array(216,191,216), |
---|
| 2534 | "snow1"=>array(255,250,250), |
---|
| 2535 | "snow2"=>array(238,233,233), |
---|
| 2536 | "snow3"=>array(205,201,201), |
---|
| 2537 | "snow4"=>array(139,137,137), |
---|
| 2538 | "seashell1"=>array(255,245,238), |
---|
| 2539 | "seashell2"=>array(238,229,222), |
---|
| 2540 | "seashell3"=>array(205,197,191), |
---|
| 2541 | "seashell4"=>array(139,134,130), |
---|
| 2542 | "AntiqueWhite1"=>array(255,239,219), |
---|
| 2543 | "AntiqueWhite2"=>array(238,223,204), |
---|
| 2544 | "AntiqueWhite3"=>array(205,192,176), |
---|
| 2545 | "AntiqueWhite4"=>array(139,131,120), |
---|
| 2546 | "bisque1"=>array(255,228,196), |
---|
| 2547 | "bisque2"=>array(238,213,183), |
---|
| 2548 | "bisque3"=>array(205,183,158), |
---|
| 2549 | "bisque4"=>array(139,125,107), |
---|
| 2550 | "peachPuff1"=>array(255,218,185), |
---|
| 2551 | "peachpuff2"=>array(238,203,173), |
---|
| 2552 | "peachpuff3"=>array(205,175,149), |
---|
| 2553 | "peachpuff4"=>array(139,119,101), |
---|
| 2554 | "navajowhite1"=>array(255,222,173), |
---|
| 2555 | "navajowhite2"=>array(238,207,161), |
---|
| 2556 | "navajowhite3"=>array(205,179,139), |
---|
| 2557 | "navajowhite4"=>array(139,121,94), |
---|
| 2558 | "lemonchiffon1"=>array(255,250,205), |
---|
| 2559 | "lemonchiffon2"=>array(238,233,191), |
---|
| 2560 | "lemonchiffon3"=>array(205,201,165), |
---|
| 2561 | "lemonchiffon4"=>array(139,137,112), |
---|
| 2562 | "ivory1"=>array(255,255,240), |
---|
| 2563 | "ivory2"=>array(238,238,224), |
---|
| 2564 | "ivory3"=>array(205,205,193), |
---|
| 2565 | "ivory4"=>array(139,139,131), |
---|
| 2566 | "honeydew"=>array(193,205,193), |
---|
| 2567 | "lavenderblush1"=>array(255,240,245), |
---|
| 2568 | "lavenderblush2"=>array(238,224,229), |
---|
| 2569 | "lavenderblush3"=>array(205,193,197), |
---|
| 2570 | "lavenderblush4"=>array(139,131,134), |
---|
| 2571 | "mistyrose1"=>array(255,228,225), |
---|
| 2572 | "mistyrose2"=>array(238,213,210), |
---|
| 2573 | "mistyrose3"=>array(205,183,181), |
---|
| 2574 | "mistyrose4"=>array(139,125,123), |
---|
| 2575 | "azure1"=>array(240,255,255), |
---|
| 2576 | "azure2"=>array(224,238,238), |
---|
| 2577 | "azure3"=>array(193,205,205), |
---|
| 2578 | "azure4"=>array(131,139,139), |
---|
| 2579 | "slateblue1"=>array(131,111,255), |
---|
| 2580 | "slateblue2"=>array(122,103,238), |
---|
| 2581 | "slateblue3"=>array(105,89,205), |
---|
| 2582 | "slateblue4"=>array(71,60,139), |
---|
| 2583 | "royalblue1"=>array(72,118,255), |
---|
| 2584 | "royalblue2"=>array(67,110,238), |
---|
| 2585 | "royalblue3"=>array(58,95,205), |
---|
| 2586 | "royalblue4"=>array(39,64,139), |
---|
| 2587 | "dodgerblue1"=>array(30,144,255), |
---|
| 2588 | "dodgerblue2"=>array(28,134,238), |
---|
| 2589 | "dodgerblue3"=>array(24,116,205), |
---|
| 2590 | "dodgerblue4"=>array(16,78,139), |
---|
| 2591 | "steelblue1"=>array(99,184,255), |
---|
| 2592 | "steelblue2"=>array(92,172,238), |
---|
| 2593 | "steelblue3"=>array(79,148,205), |
---|
| 2594 | "steelblue4"=>array(54,100,139), |
---|
| 2595 | "deepskyblue1"=>array(0,191,255), |
---|
| 2596 | "deepskyblue2"=>array(0,178,238), |
---|
| 2597 | "deepskyblue3"=>array(0,154,205), |
---|
| 2598 | "deepskyblue4"=>array(0,104,139), |
---|
| 2599 | "skyblue1"=>array(135,206,255), |
---|
| 2600 | "skyblue2"=>array(126,192,238), |
---|
| 2601 | "skyblue3"=>array(108,166,205), |
---|
| 2602 | "skyblue4"=>array(74,112,139), |
---|
| 2603 | "lightskyblue1"=>array(176,226,255), |
---|
| 2604 | "lightskyblue2"=>array(164,211,238), |
---|
| 2605 | "lightskyblue3"=>array(141,182,205), |
---|
| 2606 | "lightskyblue4"=>array(96,123,139), |
---|
| 2607 | "slategray1"=>array(198,226,255), |
---|
| 2608 | "slategray2"=>array(185,211,238), |
---|
| 2609 | "slategray3"=>array(159,182,205), |
---|
| 2610 | "slategray4"=>array(108,123,139), |
---|
| 2611 | "lightsteelblue1"=>array(202,225,255), |
---|
| 2612 | "lightsteelblue2"=>array(188,210,238), |
---|
| 2613 | "lightsteelblue3"=>array(162,181,205), |
---|
| 2614 | "lightsteelblue4"=>array(110,123,139), |
---|
| 2615 | "lightblue1"=>array(191,239,255), |
---|
| 2616 | "lightblue2"=>array(178,223,238), |
---|
| 2617 | "lightblue3"=>array(154,192,205), |
---|
| 2618 | "lightblue4"=>array(104,131,139), |
---|
| 2619 | "lightcyan1"=>array(224,255,255), |
---|
| 2620 | "lightcyan2"=>array(209,238,238), |
---|
| 2621 | "lightcyan3"=>array(180,205,205), |
---|
| 2622 | "lightcyan4"=>array(122,139,139), |
---|
| 2623 | "paleturquoise1"=>array(187,255,255), |
---|
| 2624 | "paleturquoise2"=>array(174,238,238), |
---|
| 2625 | "paleturquoise3"=>array(150,205,205), |
---|
| 2626 | "paleturquoise4"=>array(102,139,139), |
---|
| 2627 | "cadetblue1"=>array(152,245,255), |
---|
| 2628 | "cadetblue2"=>array(142,229,238), |
---|
| 2629 | "cadetblue3"=>array(122,197,205), |
---|
| 2630 | "cadetblue4"=>array(83,134,139), |
---|
| 2631 | "turquoise1"=>array(0,245,255), |
---|
| 2632 | "turquoise2"=>array(0,229,238), |
---|
| 2633 | "turquoise3"=>array(0,197,205), |
---|
| 2634 | "turquoise4"=>array(0,134,139), |
---|
| 2635 | "cyan1"=>array(0,255,255), |
---|
| 2636 | "cyan2"=>array(0,238,238), |
---|
| 2637 | "cyan3"=>array(0,205,205), |
---|
| 2638 | "cyan4"=>array(0,139,139), |
---|
| 2639 | "darkslategray1"=>array(151,255,255), |
---|
| 2640 | "darkslategray2"=>array(141,238,238), |
---|
| 2641 | "darkslategray3"=>array(121,205,205), |
---|
| 2642 | "darkslategray4"=>array(82,139,139), |
---|
| 2643 | "aquamarine1"=>array(127,255,212), |
---|
| 2644 | "aquamarine2"=>array(118,238,198), |
---|
| 2645 | "aquamarine3"=>array(102,205,170), |
---|
| 2646 | "aquamarine4"=>array(69,139,116), |
---|
| 2647 | "darkseagreen1"=>array(193,255,193), |
---|
| 2648 | "darkseagreen2"=>array(180,238,180), |
---|
| 2649 | "darkseagreen3"=>array(155,205,155), |
---|
| 2650 | "darkseagreen4"=>array(105,139,105), |
---|
| 2651 | "seagreen1"=>array(84,255,159), |
---|
| 2652 | "seagreen2"=>array(78,238,148), |
---|
| 2653 | "seagreen3"=>array(67,205,128), |
---|
| 2654 | "seagreen4"=>array(46,139,87), |
---|
| 2655 | "palegreen1"=>array(154,255,154), |
---|
| 2656 | "palegreen2"=>array(144,238,144), |
---|
| 2657 | "palegreen3"=>array(124,205,124), |
---|
| 2658 | "palegreen4"=>array(84,139,84), |
---|
| 2659 | "springgreen1"=>array(0,255,127), |
---|
| 2660 | "springgreen2"=>array(0,238,118), |
---|
| 2661 | "springgreen3"=>array(0,205,102), |
---|
| 2662 | "springgreen4"=>array(0,139,69), |
---|
| 2663 | "chartreuse1"=>array(127,255,0), |
---|
| 2664 | "chartreuse2"=>array(118,238,0), |
---|
| 2665 | "chartreuse3"=>array(102,205,0), |
---|
| 2666 | "chartreuse4"=>array(69,139,0), |
---|
| 2667 | "olivedrab1"=>array(192,255,62), |
---|
| 2668 | "olivedrab2"=>array(179,238,58), |
---|
| 2669 | "olivedrab3"=>array(154,205,50), |
---|
| 2670 | "olivedrab4"=>array(105,139,34), |
---|
| 2671 | "darkolivegreen1"=>array(202,255,112), |
---|
| 2672 | "darkolivegreen2"=>array(188,238,104), |
---|
| 2673 | "darkolivegreen3"=>array(162,205,90), |
---|
| 2674 | "darkolivegreen4"=>array(110,139,61), |
---|
| 2675 | "khaki1"=>array(255,246,143), |
---|
| 2676 | "khaki2"=>array(238,230,133), |
---|
| 2677 | "khaki3"=>array(205,198,115), |
---|
| 2678 | "khaki4"=>array(139,134,78), |
---|
| 2679 | "lightgoldenrod1"=>array(255,236,139), |
---|
| 2680 | "lightgoldenrod2"=>array(238,220,130), |
---|
| 2681 | "lightgoldenrod3"=>array(205,190,112), |
---|
| 2682 | "lightgoldenrod4"=>array(139,129,76), |
---|
| 2683 | "yellow1"=>array(255,255,0), |
---|
| 2684 | "yellow2"=>array(238,238,0), |
---|
| 2685 | "yellow3"=>array(205,205,0), |
---|
| 2686 | "yellow4"=>array(139,139,0), |
---|
| 2687 | "gold1"=>array(255,215,0), |
---|
| 2688 | "gold2"=>array(238,201,0), |
---|
| 2689 | "gold3"=>array(205,173,0), |
---|
| 2690 | "gold4"=>array(139,117,0), |
---|
| 2691 | "goldenrod1"=>array(255,193,37), |
---|
| 2692 | "goldenrod2"=>array(238,180,34), |
---|
| 2693 | "goldenrod3"=>array(205,155,29), |
---|
| 2694 | "goldenrod4"=>array(139,105,20), |
---|
| 2695 | "darkgoldenrod1"=>array(255,185,15), |
---|
| 2696 | "darkgoldenrod2"=>array(238,173,14), |
---|
| 2697 | "darkgoldenrod3"=>array(205,149,12), |
---|
| 2698 | "darkgoldenrod4"=>array(139,101,8), |
---|
| 2699 | "rosybrown1"=>array(255,193,193), |
---|
| 2700 | "rosybrown2"=>array(238,180,180), |
---|
| 2701 | "rosybrown3"=>array(205,155,155), |
---|
| 2702 | "rosybrown4"=>array(139,105,105), |
---|
| 2703 | "indianred1"=>array(255,106,106), |
---|
| 2704 | "indianred2"=>array(238,99,99), |
---|
| 2705 | "indianred3"=>array(205,85,85), |
---|
| 2706 | "indianred4"=>array(139,58,58), |
---|
| 2707 | "sienna1"=>array(255,130,71), |
---|
| 2708 | "sienna2"=>array(238,121,66), |
---|
| 2709 | "sienna3"=>array(205,104,57), |
---|
| 2710 | "sienna4"=>array(139,71,38), |
---|
| 2711 | "burlywood1"=>array(255,211,155), |
---|
| 2712 | "burlywood2"=>array(238,197,145), |
---|
| 2713 | "burlywood3"=>array(205,170,125), |
---|
| 2714 | "burlywood4"=>array(139,115,85), |
---|
| 2715 | "wheat1"=>array(255,231,186), |
---|
| 2716 | "wheat2"=>array(238,216,174), |
---|
| 2717 | "wheat3"=>array(205,186,150), |
---|
| 2718 | "wheat4"=>array(139,126,102), |
---|
| 2719 | "tan1"=>array(255,165,79), |
---|
| 2720 | "tan2"=>array(238,154,73), |
---|
| 2721 | "tan3"=>array(205,133,63), |
---|
| 2722 | "tan4"=>array(139,90,43), |
---|
| 2723 | "chocolate1"=>array(255,127,36), |
---|
| 2724 | "chocolate2"=>array(238,118,33), |
---|
| 2725 | "chocolate3"=>array(205,102,29), |
---|
| 2726 | "chocolate4"=>array(139,69,19), |
---|
| 2727 | "firebrick1"=>array(255,48,48), |
---|
| 2728 | "firebrick2"=>array(238,44,44), |
---|
| 2729 | "firebrick3"=>array(205,38,38), |
---|
| 2730 | "firebrick4"=>array(139,26,26), |
---|
| 2731 | "brown1"=>array(255,64,64), |
---|
| 2732 | "brown2"=>array(238,59,59), |
---|
| 2733 | "brown3"=>array(205,51,51), |
---|
| 2734 | "brown4"=>array(139,35,35), |
---|
| 2735 | "salmon1"=>array(255,140,105), |
---|
| 2736 | "salmon2"=>array(238,130,98), |
---|
| 2737 | "salmon3"=>array(205,112,84), |
---|
| 2738 | "salmon4"=>array(139,76,57), |
---|
| 2739 | "lightsalmon1"=>array(255,160,122), |
---|
| 2740 | "lightsalmon2"=>array(238,149,114), |
---|
| 2741 | "lightsalmon3"=>array(205,129,98), |
---|
| 2742 | "lightsalmon4"=>array(139,87,66), |
---|
| 2743 | "orange1"=>array(255,165,0), |
---|
| 2744 | "orange2"=>array(238,154,0), |
---|
| 2745 | "orange3"=>array(205,133,0), |
---|
| 2746 | "orange4"=>array(139,90,0), |
---|
| 2747 | "darkorange1"=>array(255,127,0), |
---|
| 2748 | "darkorange2"=>array(238,118,0), |
---|
| 2749 | "darkorange3"=>array(205,102,0), |
---|
| 2750 | "darkorange4"=>array(139,69,0), |
---|
| 2751 | "coral1"=>array(255,114,86), |
---|
| 2752 | "coral2"=>array(238,106,80), |
---|
| 2753 | "coral3"=>array(205,91,69), |
---|
| 2754 | "coral4"=>array(139,62,47), |
---|
| 2755 | "tomato1"=>array(255,99,71), |
---|
| 2756 | "tomato2"=>array(238,92,66), |
---|
| 2757 | "tomato3"=>array(205,79,57), |
---|
| 2758 | "tomato4"=>array(139,54,38), |
---|
| 2759 | "orangered1"=>array(255,69,0), |
---|
| 2760 | "orangered2"=>array(238,64,0), |
---|
| 2761 | "orangered3"=>array(205,55,0), |
---|
| 2762 | "orangered4"=>array(139,37,0), |
---|
| 2763 | "deeppink1"=>array(255,20,147), |
---|
| 2764 | "deeppink2"=>array(238,18,137), |
---|
| 2765 | "deeppink3"=>array(205,16,118), |
---|
| 2766 | "deeppink4"=>array(139,10,80), |
---|
| 2767 | "hotpink1"=>array(255,110,180), |
---|
| 2768 | "hotpink2"=>array(238,106,167), |
---|
| 2769 | "hotpink3"=>array(205,96,144), |
---|
| 2770 | "hotpink4"=>array(139,58,98), |
---|
| 2771 | "pink1"=>array(255,181,197), |
---|
| 2772 | "pink2"=>array(238,169,184), |
---|
| 2773 | "pink3"=>array(205,145,158), |
---|
| 2774 | "pink4"=>array(139,99,108), |
---|
| 2775 | "lightpink1"=>array(255,174,185), |
---|
| 2776 | "lightpink2"=>array(238,162,173), |
---|
| 2777 | "lightpink3"=>array(205,140,149), |
---|
| 2778 | "lightpink4"=>array(139,95,101), |
---|
| 2779 | "palevioletred1"=>array(255,130,171), |
---|
| 2780 | "palevioletred2"=>array(238,121,159), |
---|
| 2781 | "palevioletred3"=>array(205,104,137), |
---|
| 2782 | "palevioletred4"=>array(139,71,93), |
---|
| 2783 | "maroon1"=>array(255,52,179), |
---|
| 2784 | "maroon2"=>array(238,48,167), |
---|
| 2785 | "maroon3"=>array(205,41,144), |
---|
| 2786 | "maroon4"=>array(139,28,98), |
---|
| 2787 | "violetred1"=>array(255,62,150), |
---|
| 2788 | "violetred2"=>array(238,58,140), |
---|
| 2789 | "violetred3"=>array(205,50,120), |
---|
| 2790 | "violetred4"=>array(139,34,82), |
---|
| 2791 | "magenta1"=>array(255,0,255), |
---|
| 2792 | "magenta2"=>array(238,0,238), |
---|
| 2793 | "magenta3"=>array(205,0,205), |
---|
| 2794 | "magenta4"=>array(139,0,139), |
---|
| 2795 | "mediumred"=>array(140,34,34), |
---|
| 2796 | "orchid1"=>array(255,131,250), |
---|
| 2797 | "orchid2"=>array(238,122,233), |
---|
| 2798 | "orchid3"=>array(205,105,201), |
---|
| 2799 | "orchid4"=>array(139,71,137), |
---|
| 2800 | "plum1"=>array(255,187,255), |
---|
| 2801 | "plum2"=>array(238,174,238), |
---|
| 2802 | "plum3"=>array(205,150,205), |
---|
| 2803 | "plum4"=>array(139,102,139), |
---|
| 2804 | "mediumorchid1"=>array(224,102,255), |
---|
| 2805 | "mediumorchid2"=>array(209,95,238), |
---|
| 2806 | "mediumorchid3"=>array(180,82,205), |
---|
| 2807 | "mediumorchid4"=>array(122,55,139), |
---|
| 2808 | "darkorchid1"=>array(191,62,255), |
---|
| 2809 | "darkorchid2"=>array(178,58,238), |
---|
| 2810 | "darkorchid3"=>array(154,50,205), |
---|
| 2811 | "darkorchid4"=>array(104,34,139), |
---|
| 2812 | "purple1"=>array(155,48,255), |
---|
| 2813 | "purple2"=>array(145,44,238), |
---|
| 2814 | "purple3"=>array(125,38,205), |
---|
| 2815 | "purple4"=>array(85,26,139), |
---|
| 2816 | "mediumpurple1"=>array(171,130,255), |
---|
| 2817 | "mediumpurple2"=>array(159,121,238), |
---|
| 2818 | "mediumpurple3"=>array(137,104,205), |
---|
| 2819 | "mediumpurple4"=>array(93,71,139), |
---|
| 2820 | "thistle1"=>array(255,225,255), |
---|
| 2821 | "thistle2"=>array(238,210,238), |
---|
| 2822 | "thistle3"=>array(205,181,205), |
---|
| 2823 | "thistle4"=>array(139,123,139), |
---|
| 2824 | "gray1"=>array(10,10,10), |
---|
| 2825 | "gray2"=>array(40,40,30), |
---|
| 2826 | "gray3"=>array(70,70,70), |
---|
| 2827 | "gray4"=>array(100,100,100), |
---|
| 2828 | "gray5"=>array(130,130,130), |
---|
| 2829 | "gray6"=>array(160,160,160), |
---|
| 2830 | "gray7"=>array(190,190,190), |
---|
| 2831 | "gray8"=>array(210,210,210), |
---|
| 2832 | "gray9"=>array(240,240,240), |
---|
| 2833 | "darkgray"=>array(100,100,100), |
---|
| 2834 | "darkblue"=>array(0,0,139), |
---|
| 2835 | "darkcyan"=>array(0,139,139), |
---|
| 2836 | "darkmagenta"=>array(139,0,139), |
---|
| 2837 | "darkred"=>array(139,0,0), |
---|
| 2838 | "silver"=>array(192, 192, 192), |
---|
| 2839 | "eggplant"=>array(144,176,168), |
---|
| 2840 | "lightgreen"=>array(144,238,144)); |
---|
| 2841 | } |
---|
| 2842 | //---------------- |
---|
| 2843 | // PUBLIC METHODS |
---|
| 2844 | // Colors can be specified as either |
---|
| 2845 | // 1. #xxxxxx HTML style |
---|
| 2846 | // 2. "colorname" as a named color |
---|
| 2847 | // 3. array(r,g,b) RGB triple |
---|
| 2848 | // This function translates this to a native RGB format and returns an |
---|
| 2849 | // RGB triple. |
---|
| 2850 | function Color($aColor) { |
---|
| 2851 | if (is_string($aColor)) { |
---|
| 2852 | |
---|
| 2853 | // Extract potential adjustment figure at end of color |
---|
| 2854 | // specification |
---|
| 2855 | $aColor = strtok($aColor,":"); |
---|
| 2856 | $adj = 0+strtok(":"); |
---|
| 2857 | if( $adj==0 ) $adj=1; |
---|
| 2858 | if (substr($aColor, 0, 1) == "#") { |
---|
| 2859 | return array($adj*hexdec(substr($aColor, 1, 2)), |
---|
| 2860 | $adj*hexdec(substr($aColor, 3, 2)), |
---|
| 2861 | $adj*hexdec(substr($aColor, 5, 2))); |
---|
| 2862 | } else { |
---|
| 2863 | if(!isset($this->rgb_table[$aColor]) ) |
---|
| 2864 | JpGraphError::Raise("<b>JpGraph Error:</b> Unknown color: <strong>$aColor</strong>"); |
---|
| 2865 | $tmp=$this->rgb_table[$aColor]; |
---|
| 2866 | return array($adj*$tmp[0],$adj*$tmp[1],$adj*$tmp[2]); |
---|
| 2867 | } |
---|
| 2868 | } elseif( is_array($aColor) && (count($aColor)==3) ) { |
---|
| 2869 | return $aColor; |
---|
| 2870 | } |
---|
| 2871 | else |
---|
| 2872 | JpGraphError::Raise("<b>JpGraph Error:</b> Unknown color specification: $aColor , size=".count($aColor)); |
---|
| 2873 | } |
---|
| 2874 | |
---|
| 2875 | // Compare two colors |
---|
| 2876 | // return true if equal |
---|
| 2877 | function Equal($aCol1,$aCol2) { |
---|
| 2878 | $c1 = $this->Color($aCol1); |
---|
| 2879 | $c2 = $this->Color($aCol2); |
---|
| 2880 | if( $c1[0]==$c2[0] && $c1[1]==$c2[1] && $c1[2]==$c2[2] ) |
---|
| 2881 | return true; |
---|
| 2882 | else |
---|
| 2883 | return false; |
---|
| 2884 | } |
---|
| 2885 | |
---|
| 2886 | // Allocate a new color in the current image |
---|
| 2887 | // Return new color index, -1 if no more colors could be allocated |
---|
| 2888 | function Allocate($aColor) { |
---|
| 2889 | list ($r, $g, $b) = $this->color($aColor); |
---|
| 2890 | if($GLOBALS['gd2']==true) { |
---|
| 2891 | return imagecolorresolvealpha($this->img, $r, $g, $b, 0); |
---|
| 2892 | } else { |
---|
| 2893 | $index = imagecolorexact($this->img, $r, $g, $b); |
---|
| 2894 | if ($index == -1) { |
---|
| 2895 | $index = imagecolorallocate($this->img, $r, $g, $b); |
---|
| 2896 | if( USE_APPROX_COLORS && $index == -1 ) |
---|
| 2897 | $index = imagecolorresolve($this->img, $r, $g, $b); |
---|
| 2898 | } |
---|
| 2899 | return $index; |
---|
| 2900 | } |
---|
| 2901 | } |
---|
| 2902 | } // Class |
---|
| 2903 | |
---|
| 2904 | |
---|
| 2905 | //=================================================== |
---|
| 2906 | // CLASS Image |
---|
| 2907 | // Description: Wrapper class with some goodies to form the |
---|
| 2908 | // Interface to low level image drawing routines. |
---|
| 2909 | //=================================================== |
---|
| 2910 | class Image { |
---|
| 2911 | var $img_format; |
---|
| 2912 | var $expired=false; |
---|
| 2913 | var $img; |
---|
| 2914 | var $left_margin=30,$right_margin=30,$top_margin=20,$bottom_margin=30; |
---|
| 2915 | var $plotwidth,$plotheight; |
---|
| 2916 | var $rgb; |
---|
| 2917 | var $current_color,$current_color_name; |
---|
| 2918 | var $lastx=0, $lasty=0; |
---|
| 2919 | var $width, $height; |
---|
| 2920 | var $line_weight=1; |
---|
| 2921 | var $line_style=1; // Default line style is solid |
---|
| 2922 | var $obs_list=array(); |
---|
| 2923 | var $font_size=12,$font_family=FF_FONT1, $font_style=FS_NORMAL; |
---|
| 2924 | var $text_halign="left",$text_valign="bottom"; |
---|
| 2925 | var $ttf=null; |
---|
| 2926 | var $use_anti_aliasing=false; |
---|
| 2927 | var $quality=null; |
---|
| 2928 | var $colorstack=array(),$colorstackidx=0; |
---|
| 2929 | //--------------- |
---|
| 2930 | // CONSTRUCTOR |
---|
| 2931 | function Image($aWidth,$aHeight,$aFormat=DEFAULT_GFORMAT) { |
---|
| 2932 | $this->CreateImgCanvas($aWidth,$aHeight); |
---|
| 2933 | if( !$this->SetImgFormat($aFormat) ) { |
---|
| 2934 | JpGraphError::Raise("JpGraph: Selected graphic format is either not supported or unknown [$aFormat]"); |
---|
| 2935 | } |
---|
| 2936 | $this->ttf = new TTF(); |
---|
| 2937 | } |
---|
| 2938 | |
---|
| 2939 | function SetAutoMargin() { |
---|
| 2940 | $min_bm=10; |
---|
| 2941 | if( BRAND_TIMING ) |
---|
| 2942 | $min_bm=15; |
---|
| 2943 | $lm = max(12,$this->width/7); |
---|
| 2944 | $rm = max(12,$this->width/10); |
---|
| 2945 | $tm = max(24,$this->height/7); |
---|
| 2946 | $bm = max($min_bm,$this->height/7); |
---|
| 2947 | $this->SetMargin($lm,$rm,$tm,$bm); |
---|
| 2948 | } |
---|
| 2949 | |
---|
| 2950 | function CreateImgCanvas($aWidth=-1,$aHeight=-1) { |
---|
| 2951 | $this->width=$aWidth; |
---|
| 2952 | $this->height=$aHeight; |
---|
| 2953 | |
---|
| 2954 | $this->SetAutoMargin(); |
---|
| 2955 | |
---|
| 2956 | if( $aWidth==-1 || $aHeight==-1 ) { |
---|
| 2957 | // We will set the final size later. |
---|
| 2958 | // Note: The size must be specified before any other |
---|
| 2959 | // img routines that stroke anything are called. |
---|
| 2960 | $this->img = null; |
---|
| 2961 | $this->rgb = null; |
---|
| 2962 | return; |
---|
| 2963 | } |
---|
| 2964 | |
---|
| 2965 | if( $GLOBALS['gd2']==true && USE_TRUECOLOR ) { |
---|
| 2966 | $this->img = imagecreatetruecolor($aWidth, $aHeight); |
---|
| 2967 | imagefilledrectangle($this->img, 0, 0, $aWidth, $aHeight, 0xffffff); |
---|
| 2968 | } else { |
---|
| 2969 | $this->img = imagecreate($aWidth, $aHeight); |
---|
| 2970 | } |
---|
| 2971 | assert($this->img != 0); |
---|
| 2972 | $this->rgb = new RGB($this->img); |
---|
| 2973 | |
---|
| 2974 | // First index is background so this will be white |
---|
| 2975 | $this->SetColor("white"); |
---|
| 2976 | } |
---|
| 2977 | |
---|
| 2978 | |
---|
| 2979 | //--------------- |
---|
| 2980 | // PUBLIC METHODS |
---|
| 2981 | |
---|
| 2982 | // Add observer. The observer will be notified when |
---|
| 2983 | // the margin changes |
---|
| 2984 | function AddObserver($aMethod,&$aObject) { |
---|
| 2985 | $this->obs_list[]=array($aMethod,&$aObject); |
---|
| 2986 | } |
---|
| 2987 | |
---|
| 2988 | // Call all observers |
---|
| 2989 | function NotifyObservers() { |
---|
| 2990 | // foreach($this->obs_list as $o) |
---|
| 2991 | // $o[1]->$o[0]($this); |
---|
| 2992 | for($i=0; $i < count($this->obs_list); ++$i) { |
---|
| 2993 | $obj = & $this->obs_list[$i][1]; |
---|
| 2994 | $method = $this->obs_list[$i][0]; |
---|
| 2995 | $obj->$method($this); |
---|
| 2996 | } |
---|
| 2997 | } |
---|
| 2998 | |
---|
| 2999 | function SetFont($family,$style=FS_NORMAL,$size=10) { |
---|
| 3000 | if($family==FONT1_BOLD || $family==FONT2_BOLD || $family==FONT0 || $family==FONT1 || $family==FONT2 ) |
---|
| 3001 | JpGraphError::Raise("<b>JpGraph Error:</b> Usage of FONT0, FONT1, FONT2 is deprecated. Use FF_xxx instead."); |
---|
| 3002 | |
---|
| 3003 | $this->font_family=$family; |
---|
| 3004 | $this->font_style=$style; |
---|
| 3005 | $this->font_size=$size; |
---|
| 3006 | if( ($this->font_family==FF_FONT1 || $this->font_family==FF_FONT2) && $this->font_style==FS_BOLD ){ |
---|
| 3007 | ++$this->font_family; |
---|
| 3008 | } |
---|
| 3009 | } |
---|
| 3010 | |
---|
| 3011 | // Get the specific height for a text string |
---|
| 3012 | function GetTextHeight($txt="",$angle=0) { |
---|
| 3013 | // Builtin font? |
---|
| 3014 | $tmp = split("\n",$txt); |
---|
| 3015 | $n = count($tmp); |
---|
| 3016 | $m=0; |
---|
| 3017 | for($i=0; $i<count($tmp); ++$i) |
---|
| 3018 | $m = max($m,strlen($tmp[$i])); |
---|
| 3019 | |
---|
| 3020 | if( $this->font_family <= FF_FONT2+1 ) { |
---|
| 3021 | if( $angle==0 ) |
---|
| 3022 | return $n*imagefontheight($this->font_family); |
---|
| 3023 | else |
---|
| 3024 | return $m*imagefontwidth($this->font_family); |
---|
| 3025 | } |
---|
| 3026 | else { |
---|
| 3027 | $file = $this->ttf->File($this->font_family,$this->font_style); |
---|
| 3028 | $bbox = ImageTTFBBox($this->font_size,$angle,$file,"XXOOMM"/*$txt*/); |
---|
| 3029 | return $n*(abs($bbox[5])+abs($bbox[1])); // upper_right_y - lower_left_y |
---|
| 3030 | } |
---|
| 3031 | } |
---|
| 3032 | |
---|
| 3033 | // Estimate font height |
---|
| 3034 | function GetFontHeight($txt="XMg",$angle=0) { |
---|
| 3035 | $tmp = split("\n",$txt); |
---|
| 3036 | return $this->GetTextHeight($tmp[0],$angle); |
---|
| 3037 | } |
---|
| 3038 | |
---|
| 3039 | // Approximate font width with width of letter "O" |
---|
| 3040 | function GetFontWidth($txt="O",$angle=0) { |
---|
| 3041 | return $this->GetTextWidth($txt,$angle); |
---|
| 3042 | } |
---|
| 3043 | |
---|
| 3044 | // Get actual width of text in absolute pixels |
---|
| 3045 | function GetTextWidth($txt,$angle=0) { |
---|
| 3046 | // Builtin font? |
---|
| 3047 | $tmp = split("\n",$txt); |
---|
| 3048 | $n = count($tmp); |
---|
| 3049 | $m=0; |
---|
| 3050 | for($i=0; $i<count($tmp); ++$i) |
---|
| 3051 | $m = max($m,strlen($tmp[$i])); |
---|
| 3052 | |
---|
| 3053 | if( $this->font_family <= FF_FONT2+1 ) { |
---|
| 3054 | if( $angle==0 ) { |
---|
| 3055 | $width=$m*imagefontwidth($this->font_family); |
---|
| 3056 | return $width; |
---|
| 3057 | } |
---|
| 3058 | else |
---|
| 3059 | return $n*imagefontheight($this->font_family); // 90 degrees internal so height become width |
---|
| 3060 | } |
---|
| 3061 | else { |
---|
| 3062 | $file = $this->ttf->File($this->font_family,$this->font_style); |
---|
| 3063 | $bbox = ImageTTFBBox($this->font_size,$angle,$file,$txt); |
---|
| 3064 | return $n*(abs($bbox[2]-$bbox[6])); |
---|
| 3065 | } |
---|
| 3066 | } |
---|
| 3067 | |
---|
| 3068 | // Draw text with a box around it |
---|
| 3069 | function StrokeBoxedText($x,$y,$txt,$dir=0,$fcolor="white",$bcolor="black", |
---|
| 3070 | $shadow=false,$paragraph_align="left") { |
---|
| 3071 | |
---|
| 3072 | if( !is_numeric($dir) ) { |
---|
| 3073 | if( $dir=="h" ) $dir=0; |
---|
| 3074 | elseif( $dir=="v" ) $dir=90; |
---|
| 3075 | else JpGraphError::Raise("<b>JpGraph Error:</b> Unknown direction specified in call to StrokeBoxedText() [$dir]"); |
---|
| 3076 | } |
---|
| 3077 | |
---|
| 3078 | $width=$this->GetTextWidth($txt,$dir); |
---|
| 3079 | $height=$this->GetTextHeight($txt,$dir); |
---|
| 3080 | |
---|
| 3081 | if( $this->font_family<=FF_FONT2+1 ) { |
---|
| 3082 | $xmarg=3; |
---|
| 3083 | $ymarg=3; |
---|
| 3084 | } |
---|
| 3085 | else { |
---|
| 3086 | $xmarg=6; |
---|
| 3087 | $ymarg=6; |
---|
| 3088 | } |
---|
| 3089 | $height += 2*$ymarg; |
---|
| 3090 | $width += 2*$xmarg; |
---|
| 3091 | if( $this->text_halign=="right" ) $x -= $width; |
---|
| 3092 | elseif( $this->text_halign=="center" ) $x -= $width/2; |
---|
| 3093 | if( $this->text_valign=="bottom" ) $y -= $height; |
---|
| 3094 | elseif( $this->text_valign=="center" ) $y -= $height/2; |
---|
| 3095 | |
---|
| 3096 | if( $shadow ) { |
---|
| 3097 | $oc=$this->current_color; |
---|
| 3098 | $this->SetColor($bcolor); |
---|
| 3099 | $this->ShadowRectangle($x,$y,$x+$width+2,$y+$height+2,$fcolor,2); |
---|
| 3100 | $this->current_color=$oc; |
---|
| 3101 | } |
---|
| 3102 | else { |
---|
| 3103 | if( $fcolor ) { |
---|
| 3104 | $oc=$this->current_color; |
---|
| 3105 | $this->SetColor($fcolor); |
---|
| 3106 | $this->FilledRectangle($x,$y,$x+$width,$y+$height); |
---|
| 3107 | $this->current_color=$oc; |
---|
| 3108 | } |
---|
| 3109 | if( $bcolor ) { |
---|
| 3110 | $oc=$this->current_color; |
---|
| 3111 | $this->SetColor($bcolor); |
---|
| 3112 | $this->Rectangle($x,$y,$x+$width,$y+$height); |
---|
| 3113 | $this->current_color=$oc; |
---|
| 3114 | } |
---|
| 3115 | } |
---|
| 3116 | |
---|
| 3117 | $h=$this->text_halign; |
---|
| 3118 | $v=$this->text_valign; |
---|
| 3119 | $this->SetTextAlign("left","top"); |
---|
| 3120 | $this->StrokeText($x+$xmarg, $y+$ymarg, $txt, $dir, $paragraph_align); |
---|
| 3121 | $this->SetTextAlign($h,$v); |
---|
| 3122 | } |
---|
| 3123 | |
---|
| 3124 | // Set text alignment |
---|
| 3125 | function SetTextAlign($halign,$valign="bottom") { |
---|
| 3126 | $this->text_halign=$halign; |
---|
| 3127 | $this->text_valign=$valign; |
---|
| 3128 | } |
---|
| 3129 | |
---|
| 3130 | // Should we use anti-aliasing. Note: This really slows down graphics! |
---|
| 3131 | function SetAntiAliasing() { |
---|
| 3132 | $this->use_anti_aliasing=true; |
---|
| 3133 | } |
---|
| 3134 | |
---|
| 3135 | function StrokeText($x,$y,$txt,$dir=0,$paragraph_align) { |
---|
| 3136 | |
---|
| 3137 | // Do special language encoding |
---|
| 3138 | if( LANGUAGE_CYRILLIC ) |
---|
| 3139 | $txt = LanguageConv::ToCyrillic($txt); |
---|
| 3140 | |
---|
| 3141 | if( !is_numeric($dir) ) |
---|
| 3142 | JpGraphError::Raise("<b>JpGraph Error:</b> Direction for text most be given as an angle between 0 and 90."); |
---|
| 3143 | |
---|
| 3144 | if( $this->font_family >= FF_FONT0 && $this->font_family <= FF_FONT2+1) { // Internal font |
---|
| 3145 | if( is_numeric($dir) && $dir!=90 && $dir!=0) |
---|
| 3146 | JpGraphError::Raise("<b>JpGraph Error:</b> Internal font does not support drawing text at arbitrary angle. Use TTF fonts instead."); |
---|
| 3147 | |
---|
| 3148 | $h=$this->GetTextHeight($txt); |
---|
| 3149 | $fh=$this->GetFontHeight($txt); |
---|
| 3150 | $w=$this->GetTextWidth($txt); |
---|
| 3151 | |
---|
| 3152 | if( $this->text_halign=="right") |
---|
| 3153 | $x -= $dir==0 ? $w : $h; |
---|
| 3154 | elseif( $this->text_halign=="center" ) |
---|
| 3155 | $x -= $dir==0 ? $w/2 : $h/2; |
---|
| 3156 | |
---|
| 3157 | if( $this->text_valign=="top" ) |
---|
| 3158 | $y += $dir==0 ? $h : $w; |
---|
| 3159 | elseif( $this->text_valign=="center" ) |
---|
| 3160 | $y += $dir==0 ? $h/2 : $w/2; |
---|
| 3161 | |
---|
| 3162 | if( $dir==90 ) |
---|
| 3163 | imagestringup($this->img,$this->font_family,$x,$y,$txt,$this->current_color); |
---|
| 3164 | else { |
---|
| 3165 | if (ereg("\n",$txt)) { |
---|
| 3166 | $tmp = split("\n",$txt); |
---|
| 3167 | for($i=0; $i<count($tmp); ++$i) { |
---|
| 3168 | $w1 = $this->GetTextWidth($tmp[$i]); |
---|
| 3169 | if( $paragraph_align=="left" ) { |
---|
| 3170 | imagestring($this->img,$this->font_family,$x,$y-$h+1+$i*$fh,$tmp[$i],$this->current_color); |
---|
| 3171 | } |
---|
| 3172 | elseif( $paragraph_align=="right" ) { |
---|
| 3173 | imagestring($this->img,$this->font_family,$x+($w-$w1), |
---|
| 3174 | $y-$h+1+$i*$fh,$tmp[$i],$this->current_color); |
---|
| 3175 | } |
---|
| 3176 | else { |
---|
| 3177 | imagestring($this->img,$this->font_family,$x+$w/2-$w1/2, |
---|
| 3178 | $y-$h+1+$i*$fh,$tmp[$i],$this->current_color); |
---|
| 3179 | } |
---|
| 3180 | } |
---|
| 3181 | }else{ |
---|
| 3182 | //Put the text |
---|
| 3183 | imagestring($this->img,$this->font_family,$x,$y-$h+1,$txt,$this->current_color); |
---|
| 3184 | } |
---|
| 3185 | } |
---|
| 3186 | } |
---|
| 3187 | elseif($this->font_family >= FF_COURIER && $this->font_family <= FF_VERA) { // TTF font |
---|
| 3188 | $file = $this->ttf->File($this->font_family,$this->font_style); |
---|
| 3189 | $angle=$dir; |
---|
| 3190 | $bbox=ImageTTFBBox($this->font_size,$angle,$file,$txt); |
---|
| 3191 | if( $this->text_halign=="right" ) $x -= $bbox[2]-$bbox[0]; |
---|
| 3192 | elseif( $this->text_halign=="center" ) $x -= ($bbox[4]-$bbox[0])/2; |
---|
| 3193 | elseif( $this->text_halign=="topanchor" ) $x -= $bbox[4]-$bbox[0]; |
---|
| 3194 | elseif( $this->text_halign=="left" ) $x += -($bbox[6]-$bbox[0]); |
---|
| 3195 | |
---|
| 3196 | if( $this->text_valign=="top" ) $y -= $bbox[5]; |
---|
| 3197 | elseif( $this->text_valign=="center" ) $y -= ($bbox[5]-$bbox[1])/2; |
---|
| 3198 | elseif( $this->text_valign=="bottom" ) $y -= $bbox[1]; |
---|
| 3199 | |
---|
| 3200 | // Use lower left of bbox as fix-point, not the default baselinepoint. |
---|
| 3201 | $x -= $bbox[0]; |
---|
| 3202 | if($GLOBALS['gd2']) { |
---|
| 3203 | $old = ImageAlphaBlending($this->img, true); |
---|
| 3204 | } |
---|
| 3205 | ImageTTFText ($this->img, $this->font_size, $angle, $x, $y, |
---|
| 3206 | $this->current_color,$file,$txt); |
---|
| 3207 | if($GLOBALS['gd2']) { |
---|
| 3208 | ImageAlphaBlending($this->img, $old); |
---|
| 3209 | } |
---|
| 3210 | } |
---|
| 3211 | else |
---|
| 3212 | JpGraphError::Raise("<b>JpGraph Error:</b> Unknown font font family specification. "); |
---|
| 3213 | } |
---|
| 3214 | |
---|
| 3215 | function SetMargin($lm,$rm,$tm,$bm) { |
---|
| 3216 | $this->left_margin=$lm; |
---|
| 3217 | $this->right_margin=$rm; |
---|
| 3218 | $this->top_margin=$tm; |
---|
| 3219 | $this->bottom_margin=$bm; |
---|
| 3220 | $this->plotwidth=$this->width - $this->left_margin-$this->right_margin ; |
---|
| 3221 | $this->plotheight=$this->height - $this->top_margin-$this->bottom_margin ; |
---|
| 3222 | $this->NotifyObservers(); |
---|
| 3223 | } |
---|
| 3224 | |
---|
| 3225 | function SetTransparent($color) { |
---|
| 3226 | imagecolortransparent ($this->img,$this->rgb->allocate($color)); |
---|
| 3227 | } |
---|
| 3228 | |
---|
| 3229 | function SetColor($color) { |
---|
| 3230 | $this->current_color_name = $color; |
---|
| 3231 | $this->current_color=$this->rgb->allocate($color); |
---|
| 3232 | if( $this->current_color == -1 ) { |
---|
| 3233 | $tc=imagecolorstotal($this->img); |
---|
| 3234 | JpGraphError::Raise("<b><b>JpGraph Error:</b> Can't allocate any more colors.</b><br> |
---|
| 3235 | Image has already allocated maximum of <b>$tc colors</b>. |
---|
| 3236 | This might happen if you have anti-aliasing turned on |
---|
| 3237 | together with a background image or perhaps gradient fill |
---|
| 3238 | since this requires many, many colors. Try to turn off |
---|
| 3239 | anti-aliasing.<p> |
---|
| 3240 | If there is still a problem try downgrading the quality of |
---|
| 3241 | the background image to use a smaller pallete to leave some |
---|
| 3242 | entries for your graphs. You should try to limit the number |
---|
| 3243 | of colors in your background image to 64.<p> |
---|
| 3244 | If there is still problem set the constant |
---|
| 3245 | <pre> |
---|
| 3246 | DEFINE(\"USE_APPROX_COLORS\",true); |
---|
| 3247 | </pre> |
---|
| 3248 | in jpgraph.php This will use approximative colors |
---|
| 3249 | when the palette is full. |
---|
| 3250 | <p> |
---|
| 3251 | Unfortunately there is not much JpGraph can do about this |
---|
| 3252 | since the palette size is a limitation of current graphic format and |
---|
| 3253 | what the underlying GD library suppports."); |
---|
| 3254 | } |
---|
| 3255 | return $this->current_color; |
---|
| 3256 | } |
---|
| 3257 | |
---|
| 3258 | function PushColor($color) { |
---|
| 3259 | if( $color != "" ) { |
---|
| 3260 | $this->colorstack[$this->colorstackidx]=$this->current_color_name; |
---|
| 3261 | $this->colorstack[$this->colorstackidx+1]=$this->current_color; |
---|
| 3262 | $this->colorstackidx+=2; |
---|
| 3263 | $this->SetColor($color); |
---|
| 3264 | } |
---|
| 3265 | } |
---|
| 3266 | |
---|
| 3267 | function PopColor() { |
---|
| 3268 | if($this->colorstackidx<0) |
---|
| 3269 | JpGraphError::Raise("<b>JpGraph Error:</b> Negative Color stack index. Unmatched call to PopColor()"); |
---|
| 3270 | $this->current_color=$this->colorstack[--$this->colorstackidx]; |
---|
| 3271 | $this->current_color_name=$this->colorstack[--$this->colorstackidx]; |
---|
| 3272 | } |
---|
| 3273 | |
---|
| 3274 | |
---|
| 3275 | // Why this duplication? Because this way we can call this method |
---|
| 3276 | // for any image and not only the current objsct |
---|
| 3277 | function AdjSat($sat) { $this->_AdjSat($this->img,$sat); } |
---|
| 3278 | |
---|
| 3279 | function _AdjSat($img,$sat) { |
---|
| 3280 | $nbr = imagecolorstotal ($img); |
---|
| 3281 | for( $i=0; $i<$nbr; ++$i ) { |
---|
| 3282 | $colarr = imagecolorsforindex ($img,$i); |
---|
| 3283 | $rgb[0]=$colarr["red"]; |
---|
| 3284 | $rgb[1]=$colarr["green"]; |
---|
| 3285 | $rgb[2]=$colarr["blue"]; |
---|
| 3286 | $rgb = $this->AdjRGBSat($rgb,$sat); |
---|
| 3287 | imagecolorset ($img, $i, $rgb[0], $rgb[1], $rgb[2]); |
---|
| 3288 | } |
---|
| 3289 | } |
---|
| 3290 | |
---|
| 3291 | function AdjBrightContrast($bright,$contr=0) { |
---|
| 3292 | $this->_AdjBrightContrast($this->img,$bright,$contr); |
---|
| 3293 | } |
---|
| 3294 | function _AdjBrightContrast($img,$bright,$contr=0) { |
---|
| 3295 | if( $bright < -1 || $bright > 1 || $contr < -1 || $contr > 1 ) |
---|
| 3296 | JpGraphError::Raise("<b>JpGraph Error:</b> Parameters for brightness and Contrast out of range [-1,1]"); |
---|
| 3297 | $nbr = imagecolorstotal ($img); |
---|
| 3298 | for( $i=0; $i<$nbr; ++$i ) { |
---|
| 3299 | $colarr = imagecolorsforindex ($img,$i); |
---|
| 3300 | $r = $this->AdjRGBBrightContrast($colarr["red"],$bright,$contr); |
---|
| 3301 | $g = $this->AdjRGBBrightContrast($colarr["green"],$bright,$contr); |
---|
| 3302 | $b = $this->AdjRGBBrightContrast($colarr["blue"],$bright,$contr); |
---|
| 3303 | imagecolorset ($img, $i, $r, $g, $b); |
---|
| 3304 | } |
---|
| 3305 | } |
---|
| 3306 | |
---|
| 3307 | // Private helper function for adj sat |
---|
| 3308 | // Adjust saturation for RGB array $u. $sat is a value between -1 and 1 |
---|
| 3309 | // Note: Due to GD inability to handle true color the RGB values are only between |
---|
| 3310 | // 8 bit. This makes saturation quite sensitive for small increases in parameter sat. |
---|
| 3311 | // |
---|
| 3312 | // Tip: To get a grayscale picture set sat=-100, values <-100 changes the colors |
---|
| 3313 | // to it's complement. |
---|
| 3314 | // |
---|
| 3315 | // Implementation note: The saturation is implemented directly in the RGB space |
---|
| 3316 | // by adjusting the perpendicular distance between the RGB point and the "grey" |
---|
| 3317 | // line (1,1,1). Setting $sat>0 moves the point away from the line along the perp. |
---|
| 3318 | // distance and a negative value moves the point closer to the line. |
---|
| 3319 | // The values are truncated when the color point hits the bounding box along the |
---|
| 3320 | // RGB axis. |
---|
| 3321 | // DISCLAIMER: I'm not 100% sure this is he correct way to implement a color |
---|
| 3322 | // saturation function in RGB space. However, it looks ok and has the expected effect. |
---|
| 3323 | function AdjRGBSat($rgb,$sat) { |
---|
| 3324 | // TODO: Should be moved to the RGB class |
---|
| 3325 | // Grey vector |
---|
| 3326 | $v=array(1,1,1); |
---|
| 3327 | |
---|
| 3328 | // Dot product |
---|
| 3329 | $dot = $rgb[0]*$v[0]+$rgb[1]*$v[1]+$rgb[2]*$v[2]; |
---|
| 3330 | |
---|
| 3331 | // Normalize dot product |
---|
| 3332 | $normdot = $dot/3; // dot/|v|^2 |
---|
| 3333 | |
---|
| 3334 | // Direction vector between $u and its projection onto $v |
---|
| 3335 | for($i=0; $i<3; ++$i) |
---|
| 3336 | $r[$i] = $rgb[$i] - $normdot*$v[$i]; |
---|
| 3337 | |
---|
| 3338 | // Adjustment factor so that sat==1 sets the highest RGB value to 255 |
---|
| 3339 | if( $sat > 0 ) { |
---|
| 3340 | $m=0; |
---|
| 3341 | for( $i=0; $i<3; ++$i) { |
---|
| 3342 | if( sign($r[$i]) == 1 && $r[$i]>0) |
---|
| 3343 | $m=max($m,(255-$rgb[$i])/$r[$i]); |
---|
| 3344 | } |
---|
| 3345 | $tadj=$m; |
---|
| 3346 | } |
---|
| 3347 | else |
---|
| 3348 | $tadj=1; |
---|
| 3349 | |
---|
| 3350 | $tadj = $tadj*$sat; |
---|
| 3351 | for($i=0; $i<3; ++$i) { |
---|
| 3352 | $un[$i] = round($rgb[$i] + $tadj*$r[$i]); |
---|
| 3353 | if( $un[$i]<0 ) $un[$i]=0; // Truncate color when they reach 0 |
---|
| 3354 | if( $un[$i]>255 ) $un[$i]=255;// Avoid potential rounding error |
---|
| 3355 | } |
---|
| 3356 | return $un; |
---|
| 3357 | } |
---|
| 3358 | |
---|
| 3359 | // Private helper function for AdjBrightContrast |
---|
| 3360 | function AdjRGBBrightContrast($rgb,$bright,$contr) { |
---|
| 3361 | // TODO: Should be moved to the RGB class |
---|
| 3362 | // First handle contrast, i.e change the dynamic range around grey |
---|
| 3363 | if( $contr <= 0 ) { |
---|
| 3364 | // Decrease contrast |
---|
| 3365 | $adj = abs($rgb-128) * (-$contr); |
---|
| 3366 | if( $rgb < 128 ) $rgb += $adj; |
---|
| 3367 | else $rgb -= $adj; |
---|
| 3368 | } |
---|
| 3369 | else { // $contr > 0 |
---|
| 3370 | // Increase contrast |
---|
| 3371 | if( $rgb < 128 ) $rgb = $rgb - ($rgb * $contr); |
---|
| 3372 | else $rgb = $rgb + ((255-$rgb) * $contr); |
---|
| 3373 | } |
---|
| 3374 | |
---|
| 3375 | // Add (or remove) various amount of white |
---|
| 3376 | $rgb += $bright*255; |
---|
| 3377 | $rgb=min($rgb,255); |
---|
| 3378 | $rgb=max($rgb,0); |
---|
| 3379 | return $rgb; |
---|
| 3380 | } |
---|
| 3381 | |
---|
| 3382 | function SetLineWeight($weight) { |
---|
| 3383 | $this->line_weight = $weight; |
---|
| 3384 | } |
---|
| 3385 | |
---|
| 3386 | function SetStartPoint($x,$y) { |
---|
| 3387 | $this->lastx=$x; |
---|
| 3388 | $this->lasty=$y; |
---|
| 3389 | } |
---|
| 3390 | |
---|
| 3391 | function Arc($cx,$cy,$w,$h,$s,$e) { |
---|
| 3392 | imagearc($this->img,$cx,$cy,$w,$h,$s,$e,$this->current_color); |
---|
| 3393 | } |
---|
| 3394 | |
---|
| 3395 | function FilledArc($cx,$cy,$w,$h,$s,$e) { |
---|
| 3396 | if( $GLOBALS['gd2'] == false ) { |
---|
| 3397 | JpGraphError::Raise("<b>JpGraph Error:</b> This plot type requires GD 2.x or later"); |
---|
| 3398 | die(); |
---|
| 3399 | } |
---|
| 3400 | imagefilledarc($this->img,$cx,$cy,$w,$h,$s,$e,$this->current_color,IMG_ARC_PIE); |
---|
| 3401 | } |
---|
| 3402 | |
---|
| 3403 | function FilledCakeSlice($cx,$cy,$w,$h,$s,$e) { |
---|
| 3404 | $this->CakeSlice($cx,$cy,$w,$h,$s,$e,$this->current_color_name); |
---|
| 3405 | } |
---|
| 3406 | |
---|
| 3407 | function CakeSlice($cx,$cy,$w,$h,$s,$e,$fillcolor="",$arccolor="",$stepping=2500) { |
---|
| 3408 | // Calculate a polygon approximation |
---|
| 3409 | $p[0] = $cx; |
---|
| 3410 | $p[1] = $cy; |
---|
| 3411 | // Heuristic on how many polygons we need to make the |
---|
| 3412 | // arc look good |
---|
| 3413 | $numsteps = round(8 * abs($e-$s) * ($w*$w+$h*$h)/$stepping); |
---|
| 3414 | //echo "Numsteps=$numsteps<br>\n"; |
---|
| 3415 | if( $numsteps < 2 ) $numsteps=2; |
---|
| 3416 | $delta = ($e-$s)/$numsteps; |
---|
| 3417 | $pa=array(); |
---|
| 3418 | $a = $s; |
---|
| 3419 | for($i=1; $i<=$numsteps; ++$i ) { |
---|
| 3420 | $p[2*$i] = round($cx + $w*cos($a)); |
---|
| 3421 | $p[2*$i+1] = round($cy - $h*sin($a)); |
---|
| 3422 | $a = $s + $i*$delta; |
---|
| 3423 | $pa[2*($i-1)] = $p[2*$i]; |
---|
| 3424 | $pa[2*($i-1)+1] = $p[2*$i+1]; |
---|
| 3425 | } |
---|
| 3426 | // Get the last point at the exact ending angle to avoid |
---|
| 3427 | // any rounding errors. |
---|
| 3428 | $p[2*$i] = round($cx + $w*cos($e)); |
---|
| 3429 | $p[2*$i+1] = round($cy - $h*sin($e)); |
---|
| 3430 | $pa[2*($i-1)] = $p[2*$i]; |
---|
| 3431 | $pa[2*($i-1)+1] = $p[2*$i+1]; |
---|
| 3432 | $i++; |
---|
| 3433 | |
---|
| 3434 | $p[2*$i] = $cx; |
---|
| 3435 | $p[2*$i+1] = $cy; |
---|
| 3436 | if( $fillcolor != "" ) { |
---|
| 3437 | $this->PushColor($fillcolor); |
---|
| 3438 | $this->FilledPolygon($p); |
---|
| 3439 | $this->PopColor(); |
---|
| 3440 | } |
---|
| 3441 | $this->Polygon($p); |
---|
| 3442 | if( $arccolor != "" && ($arccolor != $this->current_color) ) { |
---|
| 3443 | $n = count($pa)/2; |
---|
| 3444 | $this->PushColor($arccolor); |
---|
| 3445 | $this->SetStartPoint($pa[0],$pa[1]); |
---|
| 3446 | for($i=1; $i<$n; ++$i) |
---|
| 3447 | $this->LineTo($pa[2*$i],$pa[2*$i+1]); |
---|
| 3448 | $this->PopColor(); |
---|
| 3449 | } |
---|
| 3450 | } |
---|
| 3451 | |
---|
| 3452 | function Ellipse($xc,$yc,$w,$h) { |
---|
| 3453 | $this->Arc($xc,$yc,$w,$h,0,360); |
---|
| 3454 | } |
---|
| 3455 | |
---|
| 3456 | // Breseham circle gives visually better result then using GD |
---|
| 3457 | // built in arc(). It takes some more time but gives better |
---|
| 3458 | // accuracy. |
---|
| 3459 | function BresenhamCircle($xc,$yc,$r) { |
---|
| 3460 | $d = 3-2*$r; |
---|
| 3461 | $x = 0; |
---|
| 3462 | $y = $r; |
---|
| 3463 | while($x<=$y) { |
---|
| 3464 | $this->Point($xc+$x,$yc+$y); |
---|
| 3465 | $this->Point($xc+$x,$yc-$y); |
---|
| 3466 | $this->Point($xc-$x,$yc+$y); |
---|
| 3467 | $this->Point($xc-$x,$yc-$y); |
---|
| 3468 | |
---|
| 3469 | $this->Point($xc+$y,$yc+$x); |
---|
| 3470 | $this->Point($xc+$y,$yc-$x); |
---|
| 3471 | $this->Point($xc-$y,$yc+$x); |
---|
| 3472 | $this->Point($xc-$y,$yc-$x); |
---|
| 3473 | |
---|
| 3474 | if( $d<0 ) $d += 4*$x+6; |
---|
| 3475 | else { |
---|
| 3476 | $d += 4*($x-$y)+10; |
---|
| 3477 | --$y; |
---|
| 3478 | } |
---|
| 3479 | ++$x; |
---|
| 3480 | } |
---|
| 3481 | } |
---|
| 3482 | |
---|
| 3483 | function Circle($xc,$yc,$r) { |
---|
| 3484 | if( USE_BRESENHAM ) |
---|
| 3485 | $this->BresenhamCircle($xc,$yc,$r); |
---|
| 3486 | else { |
---|
| 3487 | $this->Arc($xc,$yc,$r*2,$r*2,0,360); |
---|
| 3488 | // For some reason imageellipse() isn't in GD 2.0.1, PHP 4.1.1 |
---|
| 3489 | //imageellipse($this->img,$xc,$yc,$r,$r,$this->current_color); |
---|
| 3490 | } |
---|
| 3491 | } |
---|
| 3492 | |
---|
| 3493 | function FilledCircle($xc,$yc,$r) { |
---|
| 3494 | imagefilledellipse($this->img,$xc,$yc,2*$r,2*$r,$this->current_color); |
---|
| 3495 | } |
---|
| 3496 | |
---|
| 3497 | // Linear Color InterPolation |
---|
| 3498 | function lip($f,$t,$p) { |
---|
| 3499 | $p = round($p,1); |
---|
| 3500 | $r = $f[0] + ($t[0]-$f[0])*$p; |
---|
| 3501 | $g = $f[1] + ($t[1]-$f[1])*$p; |
---|
| 3502 | $b = $f[2] + ($t[2]-$f[2])*$p; |
---|
| 3503 | return array($r,$g,$b); |
---|
| 3504 | } |
---|
| 3505 | |
---|
| 3506 | // Anti-aliased line. |
---|
| 3507 | // Note that this is roughly 8 times slower then a normal line! |
---|
| 3508 | function WuLine($x1,$y1,$x2,$y2) { |
---|
| 3509 | // Get foreground line color |
---|
| 3510 | $lc = imagecolorsforindex($this->img,$this->current_color); |
---|
| 3511 | $lc = array($lc["red"],$lc["green"],$lc["blue"]); |
---|
| 3512 | |
---|
| 3513 | $dx = $x2-$x1; |
---|
| 3514 | $dy = $y2-$y1; |
---|
| 3515 | |
---|
| 3516 | if( abs($dx) > abs($dy) ) { |
---|
| 3517 | if( $dx<0 ) { |
---|
| 3518 | $dx = -$dx;$dy = -$dy; |
---|
| 3519 | $tmp=$x2;$x2=$x1;$x1=$tmp; |
---|
| 3520 | $tmp=$y2;$y2=$y1;$y1=$tmp; |
---|
| 3521 | } |
---|
| 3522 | $x=$x1<<16; $y=$y1<<16; |
---|
| 3523 | $yinc = ($dy*65535)/$dx; |
---|
| 3524 | while( ($x >> 16) < $x2 ) { |
---|
| 3525 | |
---|
| 3526 | $bc = imagecolorsforindex($this->img,imagecolorat($this->img,$x>>16,$y>>16)); |
---|
| 3527 | $bc=array($bc["red"],$bc["green"],$bc["blue"]); |
---|
| 3528 | |
---|
| 3529 | $this->SetColor($this->lip($lc,$bc,($y & 0xFFFF)/65535)); |
---|
| 3530 | imagesetpixel($this->img,$x>>16,$y>>16,$this->current_color); |
---|
| 3531 | $this->SetColor($this->lip($lc,$bc,(~$y & 0xFFFF)/65535)); |
---|
| 3532 | imagesetpixel($this->img,$x>>16,($y>>16)+1,$this->current_color); |
---|
| 3533 | $x += 65536; $y += $yinc; |
---|
| 3534 | } |
---|
| 3535 | } |
---|
| 3536 | else { |
---|
| 3537 | if( $dy<0 ) { |
---|
| 3538 | $dx = -$dx;$dy = -$dy; |
---|
| 3539 | $tmp=$x2;$x2=$x1;$x1=$tmp; |
---|
| 3540 | $tmp=$y2;$y2=$y1;$y1=$tmp; |
---|
| 3541 | } |
---|
| 3542 | $x=$x1<<16; $y=$y1<<16; |
---|
| 3543 | $xinc = ($dx*65535)/$dy; |
---|
| 3544 | while( ($y >> 16) < $y2 ) { |
---|
| 3545 | |
---|
| 3546 | $bc = imagecolorsforindex($this->img,imagecolorat($this->img,$x>>16,$y>>16)); |
---|
| 3547 | $bc=array($bc["red"],$bc["green"],$bc["blue"]); |
---|
| 3548 | |
---|
| 3549 | $this->SetColor($this->lip($lc,$bc,($x & 0xFFFF)/65535)); |
---|
| 3550 | imagesetpixel($this->img,$x>>16,$y>>16,$this->current_color); |
---|
| 3551 | $this->SetColor($this->lip($lc,$bc,(~$x & 0xFFFF)/65535)); |
---|
| 3552 | imagesetpixel($this->img,($x>>16)+1,$y>>16,$this->current_color); |
---|
| 3553 | $y += 65536; $x += $xinc; |
---|
| 3554 | } |
---|
| 3555 | } |
---|
| 3556 | $this->SetColor($lc); |
---|
| 3557 | imagesetpixel($this->img,$x2,$y2,$this->current_color); |
---|
| 3558 | imagesetpixel($this->img,$x1,$y1,$this->current_color); |
---|
| 3559 | } |
---|
| 3560 | |
---|
| 3561 | // Set line style dashed, dotted etc |
---|
| 3562 | function SetLineStyle($s) { |
---|
| 3563 | if( is_numeric($s) ) { |
---|
| 3564 | if( $s<1 || $s>4 ) |
---|
| 3565 | JpGraphError::Raise("<b>JpGraph Error:</b> Illegal numeric argument to SetLineStyle(): $s"); |
---|
| 3566 | } |
---|
| 3567 | elseif( is_string($s) ) { |
---|
| 3568 | if( $s == "solid" ) $s=1; |
---|
| 3569 | elseif( $s == "dotted" ) $s=2; |
---|
| 3570 | elseif( $s == "dashed" ) $s=3; |
---|
| 3571 | elseif( $s == "longdashed" ) $s=4; |
---|
| 3572 | else JpGraphError::Raise("<b>JpGraph Error:</b> Illegal string argument to SetLineStyle(): $s"); |
---|
| 3573 | } |
---|
| 3574 | else JpGraphError::Raise("<b>JpGraph Error:</b> Illegal argument to SetLineStyle $s"); |
---|
| 3575 | $this->line_style=$s; |
---|
| 3576 | } |
---|
| 3577 | |
---|
| 3578 | // Same as Line but take the line_style into account |
---|
| 3579 | function StyleLine($x1,$y1,$x2,$y2) { |
---|
| 3580 | switch( $this->line_style ) { |
---|
| 3581 | case 1:// Solid |
---|
| 3582 | $this->Line($x1,$y1,$x2,$y2); |
---|
| 3583 | break; |
---|
| 3584 | case 2: // Dotted |
---|
| 3585 | $this->DashedLine($x1,$y1,$x2,$y2,1,6); |
---|
| 3586 | break; |
---|
| 3587 | case 3: // Dashed |
---|
| 3588 | $this->DashedLine($x1,$y1,$x2,$y2,2,4); |
---|
| 3589 | break; |
---|
| 3590 | case 4: // Longdashes |
---|
| 3591 | $this->DashedLine($x1,$y1,$x2,$y2,8,6); |
---|
| 3592 | break; |
---|
| 3593 | default: |
---|
| 3594 | JpGraphError::Raise("<b>JpGraph Error:</b> Unknown line style: $this->line_style "); |
---|
| 3595 | break; |
---|
| 3596 | } |
---|
| 3597 | } |
---|
| 3598 | |
---|
| 3599 | function Line($x1,$y1,$x2,$y2) { |
---|
| 3600 | if( $this->line_weight==0 ) return; |
---|
| 3601 | if( $this->use_anti_aliasing ) { |
---|
| 3602 | $dx = $x2-$x1; |
---|
| 3603 | $dy = $y2-$y1; |
---|
| 3604 | // Vertical, Horizontal or 45 lines don't need anti-aliasing |
---|
| 3605 | if( $dx!=0 && $dy!=0 && $dx!=$dy ) { |
---|
| 3606 | $this->WuLine($x1,$y1,$x2,$y2); |
---|
| 3607 | return; |
---|
| 3608 | } |
---|
| 3609 | } |
---|
| 3610 | if( $this->line_weight==1 ) |
---|
| 3611 | imageline($this->img,$x1,$y1,$x2,$y2,$this->current_color); |
---|
| 3612 | elseif( $x1==$x2 ) { // Special case for vertical lines |
---|
| 3613 | imageline($this->img,$x1,$y1,$x2,$y2,$this->current_color); |
---|
| 3614 | $w1=floor($this->line_weight/2); |
---|
| 3615 | $w2=floor(($this->line_weight-1)/2); |
---|
| 3616 | for($i=1; $i<=$w1; ++$i) |
---|
| 3617 | imageline($this->img,$x1+$i,$y1,$x2+$i,$y2,$this->current_color); |
---|
| 3618 | for($i=1; $i<=$w2; ++$i) |
---|
| 3619 | imageline($this->img,$x1-$i,$y1,$x2-$i,$y2,$this->current_color); |
---|
| 3620 | } |
---|
| 3621 | elseif( $y1==$y2 ) { // Special case for horizontal lines |
---|
| 3622 | imageline($this->img,$x1,$y1,$x2,$y2,$this->current_color); |
---|
| 3623 | $w1=floor($this->line_weight/2); |
---|
| 3624 | $w2=floor(($this->line_weight-1)/2); |
---|
| 3625 | for($i=1; $i<=$w1; ++$i) |
---|
| 3626 | imageline($this->img,$x1,$y1+$i,$x2,$y2+$i,$this->current_color); |
---|
| 3627 | for($i=1; $i<=$w2; ++$i) |
---|
| 3628 | imageline($this->img,$x1,$y1-$i,$x2,$y2-$i,$this->current_color); |
---|
| 3629 | } |
---|
| 3630 | else { // General case with a line at an angle |
---|
| 3631 | $a = atan2($y1-$y2,$x2-$x1); |
---|
| 3632 | // Now establish some offsets from the center. This gets a little |
---|
| 3633 | // bit involved since we are dealing with integer functions and we |
---|
| 3634 | // want the apperance to be as smooth as possible and never be thicker |
---|
| 3635 | // then the specified width. |
---|
| 3636 | |
---|
| 3637 | // We do the trig stuff to make sure that the endpoints of the line |
---|
| 3638 | // are perpendicular to the line itself. |
---|
| 3639 | $dx=(sin($a)*$this->line_weight/2); |
---|
| 3640 | $dy=(cos($a)*$this->line_weight/2); |
---|
| 3641 | |
---|
| 3642 | $pnts = array($x2+$dx,$y2+$dy,$x2-$dx,$y2-$dy,$x1-$dx,$y1-$dy,$x1+$dx,$y1+$dy); |
---|
| 3643 | imagefilledpolygon($this->img,$pnts,count($pnts)/2,$this->current_color); |
---|
| 3644 | } |
---|
| 3645 | $this->lastx=$x2; $this->lasty=$y2; |
---|
| 3646 | } |
---|
| 3647 | |
---|
| 3648 | function Polygon($p) { |
---|
| 3649 | if( $this->line_weight==0 ) return; |
---|
| 3650 | $n=count($p)/2; |
---|
| 3651 | for( $i=0; $i<$n; ++$i ) { |
---|
| 3652 | $j=($i+1)%$n; |
---|
| 3653 | $this->Line($p[$i*2],$p[$i*2+1],$p[$j*2],$p[$j*2+1]); |
---|
| 3654 | } |
---|
| 3655 | } |
---|
| 3656 | |
---|
| 3657 | function FilledPolygon($pts) { |
---|
| 3658 | imagefilledpolygon($this->img,$pts,count($pts)/2,$this->current_color); |
---|
| 3659 | } |
---|
| 3660 | |
---|
| 3661 | function Rectangle($xl,$yu,$xr,$yl) { |
---|
| 3662 | $this->Polygon(array($xl,$yu,$xr,$yu,$xr,$yl,$xl,$yl)); |
---|
| 3663 | } |
---|
| 3664 | |
---|
| 3665 | function FilledRectangle($xl,$yu,$xr,$yl) { |
---|
| 3666 | $this->FilledPolygon(array($xl,$yu,$xr,$yu,$xr,$yl,$xl,$yl)); |
---|
| 3667 | } |
---|
| 3668 | |
---|
| 3669 | function ShadowRectangle($xl,$yu,$xr,$yl,$fcolor=false,$shadow_width=3,$shadow_color=array(102,102,102)) { |
---|
| 3670 | $this->PushColor($shadow_color); |
---|
| 3671 | $this->FilledRectangle($xr-$shadow_width,$yu+$shadow_width,$xr,$yl); |
---|
| 3672 | $this->FilledRectangle($xl+$shadow_width,$yl-$shadow_width,$xr,$yl); |
---|
| 3673 | $this->PopColor(); |
---|
| 3674 | if( $fcolor==false ) |
---|
| 3675 | $this->Rectangle($xl,$yu,$xr-$shadow_width-1,$yl-$shadow_width-1); |
---|
| 3676 | else { |
---|
| 3677 | $this->PushColor($fcolor); |
---|
| 3678 | $this->FilledRectangle($xl,$yu,$xr-$shadow_width-1,$yl-$shadow_width-1); |
---|
| 3679 | $this->PopColor(); |
---|
| 3680 | $this->Rectangle($xl,$yu,$xr-$shadow_width-1,$yl-$shadow_width-1); |
---|
| 3681 | } |
---|
| 3682 | } |
---|
| 3683 | |
---|
| 3684 | function StyleLineTo($x,$y) { |
---|
| 3685 | $this->StyleLine($this->lastx,$this->lasty,$x,$y); |
---|
| 3686 | $this->lastx=$x; |
---|
| 3687 | $this->lasty=$y; |
---|
| 3688 | } |
---|
| 3689 | |
---|
| 3690 | function LineTo($x,$y) { |
---|
| 3691 | $this->Line($this->lastx,$this->lasty,$x,$y); |
---|
| 3692 | $this->lastx=$x; |
---|
| 3693 | $this->lasty=$y; |
---|
| 3694 | } |
---|
| 3695 | |
---|
| 3696 | function Point($x,$y) { |
---|
| 3697 | imagesetpixel($this->img,$x,$y,$this->current_color); |
---|
| 3698 | } |
---|
| 3699 | |
---|
| 3700 | function Fill($x,$y) { |
---|
| 3701 | imagefill($this->img,$x,$y,$this->current_color); |
---|
| 3702 | } |
---|
| 3703 | |
---|
| 3704 | function DashedLine($x1,$y1,$x2,$y2,$dash_length=1,$dash_space=4) { |
---|
| 3705 | // Code based on, but not identical to, work by Ariel Garza and James Pine |
---|
| 3706 | $line_length = ceil (sqrt(pow(($x2 - $x1),2) + pow(($y2 - $y1),2)) ); |
---|
| 3707 | $dx = ($x2 - $x1) / $line_length; |
---|
| 3708 | $dy = ($y2 - $y1) / $line_length; |
---|
| 3709 | $lastx = $x1; $lasty = $y1; |
---|
| 3710 | $xmax = max($x1,$x2); |
---|
| 3711 | $xmin = min($x1,$x2); |
---|
| 3712 | $ymax = max($y1,$y2); |
---|
| 3713 | $ymin = min($y1,$y2); |
---|
| 3714 | for ($i = 0; $i < $line_length; $i += ($dash_length + $dash_space)) { |
---|
| 3715 | $x = ($dash_length * $dx) + $lastx; |
---|
| 3716 | $y = ($dash_length * $dy) + $lasty; |
---|
| 3717 | |
---|
| 3718 | // The last section might overshoot so we must take a computational hit |
---|
| 3719 | // and check this. |
---|
| 3720 | if( $x>$xmax ) $x=$xmax; |
---|
| 3721 | if( $y>$ymax ) $y=$ymax; |
---|
| 3722 | |
---|
| 3723 | if( $x<$xmin ) $x=$xmin; |
---|
| 3724 | if( $y<$ymin ) $y=$ymin; |
---|
| 3725 | |
---|
| 3726 | $this->Line($lastx,$lasty,$x,$y); |
---|
| 3727 | $lastx = $x + ($dash_space * $dx); |
---|
| 3728 | $lasty = $y + ($dash_space * $dy); |
---|
| 3729 | } |
---|
| 3730 | } |
---|
| 3731 | |
---|
| 3732 | // Generate image header |
---|
| 3733 | function Headers() { |
---|
| 3734 | if ($this->expired) { |
---|
| 3735 | header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); |
---|
| 3736 | header("Last-Modified: " . gmdate("D, d M Y H:i:s") . "GMT"); |
---|
| 3737 | header("Cache-Control: no-cache, must-revalidate"); |
---|
| 3738 | header("Pragma: no-cache"); |
---|
| 3739 | } |
---|
| 3740 | header("Content-type: image/$this->img_format"); |
---|
| 3741 | } |
---|
| 3742 | |
---|
| 3743 | // Adjust image quality for formats that allow this |
---|
| 3744 | function SetQuality($q) { |
---|
| 3745 | $this->quality = $q; |
---|
| 3746 | } |
---|
| 3747 | |
---|
| 3748 | // Stream image to browser or to file |
---|
| 3749 | function Stream($aFile="") { |
---|
| 3750 | $func="image".$this->img_format; |
---|
| 3751 | if( $this->img_format=="jpeg" && $this->quality != null ) { |
---|
| 3752 | $res = @$func($this->img,$aFile,$this->quality); |
---|
| 3753 | } |
---|
| 3754 | else { |
---|
| 3755 | if( $aFile != "" ) { |
---|
| 3756 | $res = @$func($this->img,$aFile); |
---|
| 3757 | } |
---|
| 3758 | else |
---|
| 3759 | $res = @$func($this->img); |
---|
| 3760 | } |
---|
| 3761 | if( !$res ) |
---|
| 3762 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't create or stream image to file: $aFile<br> |
---|
| 3763 | Check that PHP has enough permission to write a file to the current directory."); |
---|
| 3764 | } |
---|
| 3765 | |
---|
| 3766 | // Clear resource tide up by image |
---|
| 3767 | function Destroy() { |
---|
| 3768 | imagedestroy($this->img); |
---|
| 3769 | } |
---|
| 3770 | |
---|
| 3771 | // Specify image format. Note depending on your installation |
---|
| 3772 | // of PHP not all formats may be supported. |
---|
| 3773 | function SetImgFormat($aFormat) { |
---|
| 3774 | $aFormat = strtolower($aFormat); |
---|
| 3775 | $tst = true; |
---|
| 3776 | $supported = imagetypes(); |
---|
| 3777 | if( $aFormat=="auto" ) { |
---|
| 3778 | if( $supported & IMG_PNG ) |
---|
| 3779 | $this->img_format="png"; |
---|
| 3780 | elseif( $supported & IMG_JPG ) |
---|
| 3781 | $this->img_format="jpeg"; |
---|
| 3782 | elseif( $supported & IMG_GIF ) |
---|
| 3783 | $this->img_format="gif"; |
---|
| 3784 | else |
---|
| 3785 | JpGraphError::Raise("<b>JpGraph Error:</b> Your PHP (and GD-lib) installation does not appear to support any known graphic formats.". |
---|
| 3786 | "You need to first make sure GD is compiled as a module to PHP. If you also want to use JPEG images". |
---|
| 3787 | "you must get the JPEG library. Please see the PHP docs for details."); |
---|
| 3788 | |
---|
| 3789 | return true; |
---|
| 3790 | } |
---|
| 3791 | else { |
---|
| 3792 | if( $aFormat=="jpeg" || $aFormat=="png" || $aFormat=="gif" ) { |
---|
| 3793 | if( $aFormat=="jpeg" && !($supported & IMG_JPG) ) |
---|
| 3794 | $tst=false; |
---|
| 3795 | elseif( $aFormat=="png" && !($supported & IMG_PNG) ) |
---|
| 3796 | $tst=false; |
---|
| 3797 | elseif( $aFormat=="gif" && !($supported & IMG_GIF) ) |
---|
| 3798 | $tst=false; |
---|
| 3799 | else { |
---|
| 3800 | $this->img_format=$aFormat; |
---|
| 3801 | return true; |
---|
| 3802 | } |
---|
| 3803 | } |
---|
| 3804 | else |
---|
| 3805 | $tst=false; |
---|
| 3806 | if( !$tst ) |
---|
| 3807 | JpGraphError::Raise("<b>JpGraph Error:</b> Your PHP installation does not support the chosen graphic format: $aFormat"); |
---|
| 3808 | } |
---|
| 3809 | } |
---|
| 3810 | } // CLASS |
---|
| 3811 | |
---|
| 3812 | //=================================================== |
---|
| 3813 | // CLASS RotImage |
---|
| 3814 | // Description: Exactly as Image but draws the image at |
---|
| 3815 | // a specified angle around a specified rotation point. |
---|
| 3816 | //=================================================== |
---|
| 3817 | class RotImage extends Image { |
---|
| 3818 | var $m=array(); |
---|
| 3819 | var $a=0; |
---|
| 3820 | var $dx=0,$dy=0,$transx=0,$transy=0; |
---|
| 3821 | |
---|
| 3822 | function RotImage($aWidth,$aHeight,$a=0,$aFormat=DEFAULT_GFORMAT) { |
---|
| 3823 | $this->Image($aWidth,$aHeight,$aFormat); |
---|
| 3824 | $this->dx=$this->left_margin+$this->plotwidth/2; |
---|
| 3825 | $this->dy=$this->top_margin+$this->plotheight/2; |
---|
| 3826 | $this->SetAngle($a); |
---|
| 3827 | } |
---|
| 3828 | |
---|
| 3829 | function SetCenter($dx,$dy) { |
---|
| 3830 | $old_dx = $this->dx; |
---|
| 3831 | $old_dy = $this->dy; |
---|
| 3832 | $this->dx=$dx; |
---|
| 3833 | $this->dy=$dy; |
---|
| 3834 | return array($old_dx,$old_dy); |
---|
| 3835 | } |
---|
| 3836 | |
---|
| 3837 | function SetTranslation($dx,$dy) { |
---|
| 3838 | $old = array($this->transx,$this->transy); |
---|
| 3839 | $this->transx = $dx; |
---|
| 3840 | $this->transy = $dy; |
---|
| 3841 | return $old; |
---|
| 3842 | } |
---|
| 3843 | |
---|
| 3844 | function SetAngle($a) { |
---|
| 3845 | $tmp = $this->a; |
---|
| 3846 | $this->a = $a; |
---|
| 3847 | $a *= M_PI/180; |
---|
| 3848 | $sa=sin($a); $ca=cos($a); |
---|
| 3849 | |
---|
| 3850 | // Create the rotation matrix |
---|
| 3851 | $this->m[0][0] = $ca; |
---|
| 3852 | $this->m[0][1] = -$sa; |
---|
| 3853 | $this->m[0][2] = $this->dx*(1-$ca) + $sa*$this->dy ; |
---|
| 3854 | $this->m[1][0] = $sa; |
---|
| 3855 | $this->m[1][1] = $ca; |
---|
| 3856 | $this->m[1][2] = $this->dy*(1-$ca) - $sa*$this->dx ; |
---|
| 3857 | return $tmp; |
---|
| 3858 | } |
---|
| 3859 | |
---|
| 3860 | function Circle($xc,$yc,$r) { |
---|
| 3861 | list($xc,$yc) = $this->Rotate($xc,$yc); |
---|
| 3862 | parent::Circle($xc,$yc,$r); |
---|
| 3863 | } |
---|
| 3864 | |
---|
| 3865 | function FilledCircle($xc,$yc,$r) { |
---|
| 3866 | list($xc,$yc) = $this->Rotate($xc,$yc); |
---|
| 3867 | parent::FilledCircle($xc,$yc,$r); |
---|
| 3868 | } |
---|
| 3869 | |
---|
| 3870 | |
---|
| 3871 | function Arc($xc,$yc,$w,$h,$s,$e) { |
---|
| 3872 | list($xc,$yc) = $this->Rotate($xc,$yc); |
---|
| 3873 | parent::Arc($xc,$yc,$w,$h,$s,$e); |
---|
| 3874 | } |
---|
| 3875 | |
---|
| 3876 | function FilledArc($xc,$yc,$w,$h,$s,$e) { |
---|
| 3877 | list($xc,$yc) = $this->Rotate($xc,$yc); |
---|
| 3878 | parent::FilledArc($xc,$yc,$w,$h,$s,$e); |
---|
| 3879 | } |
---|
| 3880 | |
---|
| 3881 | function SetMargin($lm,$rm,$tm,$bm) { |
---|
| 3882 | parent::SetMargin($lm,$rm,$tm,$bm); |
---|
| 3883 | $this->SetAngle($this->a); |
---|
| 3884 | } |
---|
| 3885 | |
---|
| 3886 | function Rotate($x,$y) { |
---|
| 3887 | $x1=round($this->m[0][0]*$x + $this->m[0][1]*$y + $this->m[0][2] + $this->transx); |
---|
| 3888 | $y1=round($this->m[1][0]*$x + $this->m[1][1]*$y + $this->m[1][2] + $this->transy); |
---|
| 3889 | return array($x1,$y1); |
---|
| 3890 | } |
---|
| 3891 | |
---|
| 3892 | function ArrRotate($pnts) { |
---|
| 3893 | for($i=0; $i < count($pnts)-1; $i+=2) |
---|
| 3894 | list($pnts[$i],$pnts[$i+1]) = $this->Rotate($pnts[$i],$pnts[$i+1]); |
---|
| 3895 | return $pnts; |
---|
| 3896 | } |
---|
| 3897 | |
---|
| 3898 | function Line($x1,$y1,$x2,$y2) { |
---|
| 3899 | list($x1,$y1) = $this->Rotate($x1,$y1); |
---|
| 3900 | list($x2,$y2) = $this->Rotate($x2,$y2); |
---|
| 3901 | parent::Line($x1,$y1,$x2,$y2); |
---|
| 3902 | } |
---|
| 3903 | |
---|
| 3904 | function Rectangle($x1,$y1,$x2,$y2) { |
---|
| 3905 | $this->Polygon(array($x1,$y1,$x2,$y1,$x2,$y2,$x1,$y2)); |
---|
| 3906 | } |
---|
| 3907 | |
---|
| 3908 | function FilledRectangle($x1,$y1,$x2,$y2) { |
---|
| 3909 | if( $y1==$y2 || $x1==$x2 ) |
---|
| 3910 | $this->Line($x1,$y1,$x2,$y2); |
---|
| 3911 | else |
---|
| 3912 | $this->FilledPolygon(array($x1,$y1,$x2,$y1,$x2,$y2,$x1,$y2)); |
---|
| 3913 | } |
---|
| 3914 | |
---|
| 3915 | function Polygon($pnts) { |
---|
| 3916 | //Polygon uses Line() so it will be rotated through that call |
---|
| 3917 | parent::Polygon($pnts); |
---|
| 3918 | } |
---|
| 3919 | |
---|
| 3920 | function FilledPolygon($pnts) { |
---|
| 3921 | parent::FilledPolygon($this->ArrRotate($pnts)); |
---|
| 3922 | } |
---|
| 3923 | |
---|
| 3924 | function Point($x,$y) { |
---|
| 3925 | list($xp,$yp) = $this->Rotate($x,$y); |
---|
| 3926 | parent::Point($xp,$yp); |
---|
| 3927 | } |
---|
| 3928 | |
---|
| 3929 | function DashedLine($x1,$y1,$x2,$y2,$length=1,$space=4) { |
---|
| 3930 | list($x1,$y1) = $this->Rotate($x1,$y1); |
---|
| 3931 | list($x2,$y2) = $this->Rotate($x2,$y2); |
---|
| 3932 | parent::DashedLine($x1,$y1,$x2,$y2,$length,$space); |
---|
| 3933 | } |
---|
| 3934 | |
---|
| 3935 | function StrokeText($x,$y,$txt,$dir=0,$paragraph_align="left") { |
---|
| 3936 | list($xp,$yp) = $this->Rotate($x,$y); |
---|
| 3937 | parent::StrokeText($xp,$yp,$txt,$dir,$paragraph_align); |
---|
| 3938 | } |
---|
| 3939 | } |
---|
| 3940 | |
---|
| 3941 | //=================================================== |
---|
| 3942 | // CLASS ImgStreamCache |
---|
| 3943 | // Description: Handle caching of graphs to files |
---|
| 3944 | //=================================================== |
---|
| 3945 | class ImgStreamCache { |
---|
| 3946 | var $cache_dir; |
---|
| 3947 | var $img=null; |
---|
| 3948 | var $timeout=0; // Infinite timeout |
---|
| 3949 | //--------------- |
---|
| 3950 | // CONSTRUCTOR |
---|
| 3951 | function ImgStreamCache(&$aImg, $aCacheDir=CACHE_DIR) { |
---|
| 3952 | $this->img = &$aImg; |
---|
| 3953 | $this->cache_dir = $aCacheDir; |
---|
| 3954 | } |
---|
| 3955 | |
---|
| 3956 | //--------------- |
---|
| 3957 | // PUBLIC METHODS |
---|
| 3958 | |
---|
| 3959 | // Specify a timeout (in minutes) for the file. If the file is older then the |
---|
| 3960 | // timeout value it will be overwritten with a newer version. |
---|
| 3961 | // If timeout is set to 0 this is the same as infinite large timeout and if |
---|
| 3962 | // timeout is set to -1 this is the same as infinite small timeout |
---|
| 3963 | function SetTimeout($aTimeout) { |
---|
| 3964 | $this->timeout=$aTimeout; |
---|
| 3965 | } |
---|
| 3966 | |
---|
| 3967 | // Output image to browser and also write it to the cache |
---|
| 3968 | function PutAndStream(&$aImage,$aCacheFileName,$aInline,$aStrokeFileName) { |
---|
| 3969 | // Some debugging code to brand the image with numbe of colors |
---|
| 3970 | // used |
---|
| 3971 | |
---|
| 3972 | if( JPG_DEBUG ) { |
---|
| 3973 | $c=$aImage->SetColor("black"); |
---|
| 3974 | $t=imagecolorstotal($this->img->img); |
---|
| 3975 | imagestring($this->img->img,2,5,$this->img->height-20,$t,$c); |
---|
| 3976 | } |
---|
| 3977 | |
---|
| 3978 | if( BRAND_TIMING ) { |
---|
| 3979 | global $tim; |
---|
| 3980 | $t=$tim->Pop()/1000.0; |
---|
| 3981 | $c=$aImage->SetColor("black"); |
---|
| 3982 | $t=sprintf(BRAND_TIME_FORMAT,round($t,3)); |
---|
| 3983 | imagestring($this->img->img,2,5,$this->img->height-20,$t,$c); |
---|
| 3984 | } |
---|
| 3985 | |
---|
| 3986 | // Check if we should stroke the image to an arbitrary file |
---|
| 3987 | if( $aStrokeFileName!="" ) { |
---|
| 3988 | if( $aStrokeFileName == "auto" ) |
---|
| 3989 | $aStrokeFileName = GenImgName(); |
---|
| 3990 | if( file_exists($aStrokeFileName) ) { |
---|
| 3991 | // Delete the old file |
---|
| 3992 | if( !@unlink($aStrokeFileName) ) |
---|
| 3993 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't delete cached image $aStrokeFileName. Permission problem?"); |
---|
| 3994 | } |
---|
| 3995 | $aImage->Stream($aStrokeFileName); |
---|
| 3996 | return; |
---|
| 3997 | } |
---|
| 3998 | |
---|
| 3999 | if( $aCacheFileName != "" && USE_CACHE) { |
---|
| 4000 | |
---|
| 4001 | $aCacheFileName = $this->cache_dir . $aCacheFileName; |
---|
| 4002 | if( file_exists($aCacheFileName) ) { |
---|
| 4003 | if( !$aInline ) { |
---|
| 4004 | // If we are generating image off-line (just writing to the cache) |
---|
| 4005 | // and the file exists and is still valid (no timeout) |
---|
| 4006 | // then do nothing, just return. |
---|
| 4007 | $diff=time()-filemtime($aCacheFileName); |
---|
| 4008 | if( $diff < 0 ) |
---|
| 4009 | JpGraphError::Raise("<b>JpGraph Error:</b> Cached imagefile ($aCacheFileName) has file date in the future!!"); |
---|
| 4010 | if( $this->timeout>0 && ($diff <= $this->timeout*60) ) |
---|
| 4011 | return; |
---|
| 4012 | } |
---|
| 4013 | if( !@unlink($aCacheFileName) ) |
---|
| 4014 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't delete cached image $aStrokeFileName. Permission problem?"); |
---|
| 4015 | $aImage->Stream($aCacheFileName); |
---|
| 4016 | } |
---|
| 4017 | else { |
---|
| 4018 | $this->_MakeDirs(dirname($aCacheFileName)); |
---|
| 4019 | $aImage->Stream($aCacheFileName); |
---|
| 4020 | } |
---|
| 4021 | |
---|
| 4022 | $res=true; |
---|
| 4023 | // Set group to specified |
---|
| 4024 | if( CACHE_FILE_GROUP != "" ) |
---|
| 4025 | $res = @chgrp($aCacheFileName,CACHE_FILE_GROUP); |
---|
| 4026 | if( CACHE_FILE_MOD != "" ) |
---|
| 4027 | $res = @chmod($aCacheFileName,CACHE_FILE_MOD); |
---|
| 4028 | if( !$res ) |
---|
| 4029 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't set permission for cached image $aStrokeFileName. Permission problem?"); |
---|
| 4030 | |
---|
| 4031 | $aImage->Destroy(); |
---|
| 4032 | if( $aInline ) { |
---|
| 4033 | if ($fh = @fopen($aCacheFileName, "rb") ) { |
---|
| 4034 | $this->img->Headers(); |
---|
| 4035 | fpassthru($fh); |
---|
| 4036 | return; |
---|
| 4037 | } |
---|
| 4038 | else |
---|
| 4039 | JpGraphError::Raise("<b>JpGraph Error:</b> Cant open file from cache [$aFile]"); |
---|
| 4040 | } |
---|
| 4041 | } |
---|
| 4042 | elseif( $aInline ) { |
---|
| 4043 | $this->img->Headers(); |
---|
| 4044 | $aImage->Stream(); |
---|
| 4045 | return; |
---|
| 4046 | } |
---|
| 4047 | } |
---|
| 4048 | |
---|
| 4049 | // Check if a given image is in cache and in that case |
---|
| 4050 | // pass it directly on to web browser. Return false if the |
---|
| 4051 | // image file doesn't exist or exists but is to old |
---|
| 4052 | function GetAndStream($aCacheFileName) { |
---|
| 4053 | $aCacheFileName = $this->cache_dir.$aCacheFileName; |
---|
| 4054 | if ( USE_CACHE && file_exists($aCacheFileName) && $this->timeout>=0 ) { |
---|
| 4055 | $diff=time()-filemtime($aCacheFileName); |
---|
| 4056 | if( $this->timeout>0 && ($diff > $this->timeout*60) ) { |
---|
| 4057 | return false; |
---|
| 4058 | } |
---|
| 4059 | else { |
---|
| 4060 | if ($fh = @fopen($aCacheFileName, "rb")) { |
---|
| 4061 | $this->img->Headers(); |
---|
| 4062 | fpassthru($fh); |
---|
| 4063 | fclose($fh); |
---|
| 4064 | return true; |
---|
| 4065 | } |
---|
| 4066 | else |
---|
| 4067 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't open cached image \"$aCacheFileName\" for reading."); |
---|
| 4068 | } |
---|
| 4069 | } |
---|
| 4070 | return false; |
---|
| 4071 | } |
---|
| 4072 | |
---|
| 4073 | //--------------- |
---|
| 4074 | // PRIVATE METHODS |
---|
| 4075 | // Create all necessary directories in a path |
---|
| 4076 | function _MakeDirs($aFile) { |
---|
| 4077 | $dirs = array(); |
---|
| 4078 | while (! (file_exists($aFile))) { |
---|
| 4079 | $dirs[] = $aFile; |
---|
| 4080 | $aFile = dirname($aFile); |
---|
| 4081 | } |
---|
| 4082 | for ($i = sizeof($dirs)-1; $i>=0; $i--) { |
---|
| 4083 | if(! @mkdir($dirs[$i],0777) ) |
---|
| 4084 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't create directory in $aFile. Permission problems?"); |
---|
| 4085 | |
---|
| 4086 | // We also specify mode here after we have changed group. |
---|
| 4087 | // This is necessary if Apache user doesn't belong the |
---|
| 4088 | // default group and hence can't specify group permission |
---|
| 4089 | // in the previous mkdir() call |
---|
| 4090 | if( CACHE_FILE_GROUP != "" ) { |
---|
| 4091 | $res=true; |
---|
| 4092 | $res =@chgrp($dirs[$i],CACHE_FILE_GROUP); |
---|
| 4093 | $res &= @chmod($dirs[$i],0777); |
---|
| 4094 | if( !$res ) |
---|
| 4095 | JpGraphError::Raise("<b>JpGraph Error:</b> Can't set permissions for $aFile. Permission problems?"); |
---|
| 4096 | } |
---|
| 4097 | } |
---|
| 4098 | return true; |
---|
| 4099 | } |
---|
| 4100 | } // CLASS Cache |
---|
| 4101 | |
---|
| 4102 | //=================================================== |
---|
| 4103 | // CLASS Legend |
---|
| 4104 | // Description: Responsible for drawing the box containing |
---|
| 4105 | // all the legend text for the graph |
---|
| 4106 | //=================================================== |
---|
| 4107 | class Legend { |
---|
| 4108 | var $color=array(0,0,0); // Default fram color |
---|
| 4109 | var $fill_color=array(235,235,235); // Default fill color |
---|
| 4110 | var $shadow=true; // Shadow around legend "box" |
---|
| 4111 | var $txtcol=array(); |
---|
| 4112 | var $mark_abs_size=10,$xmargin=5,$ymargin=5,$shadow_width=2; |
---|
| 4113 | var $xpos=0.05, $ypos=0.15, $halign="right", $valign="top"; |
---|
| 4114 | var $font_family=FF_FONT1,$font_style=FS_NORMAL,$font_size=12; |
---|
| 4115 | var $hide=false,$layout=LEGEND_VERT; |
---|
| 4116 | var $weight=1; |
---|
| 4117 | //--------------- |
---|
| 4118 | // CONSTRUCTOR |
---|
| 4119 | function Legend() { |
---|
| 4120 | // Empty |
---|
| 4121 | } |
---|
| 4122 | //--------------- |
---|
| 4123 | // PUBLIC METHODS |
---|
| 4124 | function Hide($aHide=true) { |
---|
| 4125 | $this->hide=$aHide; |
---|
| 4126 | } |
---|
| 4127 | |
---|
| 4128 | function SetShadow($aShow=true,$aWidth=2) { |
---|
| 4129 | $this->shadow=$aShow; |
---|
| 4130 | $this->shadow_width=$aWidth; |
---|
| 4131 | } |
---|
| 4132 | |
---|
| 4133 | function SetLineWeight($aWeight) { |
---|
| 4134 | $this->weight = $aWeight; |
---|
| 4135 | } |
---|
| 4136 | |
---|
| 4137 | function SetLayout($aDirection=LEGEND_VERT) { |
---|
| 4138 | $this->layout=$aDirection; |
---|
| 4139 | } |
---|
| 4140 | |
---|
| 4141 | // Set color on frame around box |
---|
| 4142 | function SetColor($aColor) { |
---|
| 4143 | $this->color=$aColor; |
---|
| 4144 | } |
---|
| 4145 | |
---|
| 4146 | function SetFont($aFamily,$aStyle=FS_NORMAL,$aSize=10) { |
---|
| 4147 | $this->font_family = $aFamily; |
---|
| 4148 | $this->font_style = $aStyle; |
---|
| 4149 | $this->font_size = $aSize; |
---|
| 4150 | } |
---|
| 4151 | |
---|
| 4152 | function Pos($aX,$aY,$aHAlign="right",$aVAlign="top") { |
---|
| 4153 | if( !($aX<1 && $aY<1) ) |
---|
| 4154 | JpGraphError::Raise("<b>JpGraph Error:</b> Position for legend must be given as percentage in range 0-1"); |
---|
| 4155 | $this->xpos=$aX; |
---|
| 4156 | $this->ypos=$aY; |
---|
| 4157 | $this->halign=$aHAlign; |
---|
| 4158 | $this->valign=$aVAlign; |
---|
| 4159 | } |
---|
| 4160 | |
---|
| 4161 | function SetBackground($aDummy) { |
---|
| 4162 | JpGraphError::Raise("<b>JpGraph Error:</b> Deprecated function Legend::SetBaqckground() use Legend::SetFillColor() instead."); |
---|
| 4163 | } |
---|
| 4164 | |
---|
| 4165 | function SetFillColor($aColor) { |
---|
| 4166 | $this->fill_color=$aColor; |
---|
| 4167 | } |
---|
| 4168 | |
---|
| 4169 | function Add($aTxt,$aColor,$aPlotmark="",$aLinestyle=1) { |
---|
| 4170 | $this->txtcol[]=array($aTxt,$aColor,$aPlotmark,$aLinestyle); |
---|
| 4171 | } |
---|
| 4172 | |
---|
| 4173 | function Stroke(&$aImg) { |
---|
| 4174 | if( $this->hide ) return; |
---|
| 4175 | |
---|
| 4176 | $nbrplots=count($this->txtcol); |
---|
| 4177 | if( $nbrplots==0 ) return; |
---|
| 4178 | |
---|
| 4179 | $aImg->SetFont($this->font_family,$this->font_style,$this->font_size); |
---|
| 4180 | if( $this->layout==LEGEND_VERT ) |
---|
| 4181 | $abs_height=$aImg->GetFontHeight() + $this->mark_abs_size*$nbrplots + |
---|
| 4182 | $this->ymargin*($nbrplots-1); |
---|
| 4183 | else |
---|
| 4184 | $abs_height=2*$this->mark_abs_size+$this->ymargin; |
---|
| 4185 | |
---|
| 4186 | if( $this->shadow ) $abs_height += $this->shadow_width; |
---|
| 4187 | $mtw=0; |
---|
| 4188 | foreach($this->txtcol as $p) { |
---|
| 4189 | if( $this->layout==LEGEND_VERT ) |
---|
| 4190 | $mtw=max($mtw,$aImg->GetTextWidth($p[0])); |
---|
| 4191 | else |
---|
| 4192 | $mtw+=$aImg->GetTextWidth($p[0])+$this->mark_abs_size+$this->xmargin; |
---|
| 4193 | } |
---|
| 4194 | $abs_width=$mtw+2*$this->mark_abs_size+2*$this->xmargin; |
---|
| 4195 | if( $this->halign=="left" ) |
---|
| 4196 | $xp=$this->xpos*$aImg->width; |
---|
| 4197 | elseif( $this->halign=="center" ) |
---|
| 4198 | $xp=$this->xpos*$aImg->width - $abs_width/2; |
---|
| 4199 | else |
---|
| 4200 | $xp = $aImg->width - $this->xpos*$aImg->width - $abs_width; |
---|
| 4201 | $yp=$this->ypos*$aImg->height; |
---|
| 4202 | if( $this->valign=="center" ) |
---|
| 4203 | $yp-=$abs_height/2; |
---|
| 4204 | elseif( $this->valign=="bottom" ) |
---|
| 4205 | $yp-=$abs_height; |
---|
| 4206 | |
---|
| 4207 | $aImg->SetColor($this->color); |
---|
| 4208 | $aImg->SetLineWeight($this->weight); |
---|
| 4209 | if( $this->shadow ) |
---|
| 4210 | $aImg->ShadowRectangle($xp,$yp,$xp+$abs_width,$yp+$abs_height,$this->fill_color,$this->shadow_width); |
---|
| 4211 | else { |
---|
| 4212 | $aImg->SetColor($this->fill_color); |
---|
| 4213 | $aImg->FilledRectangle($xp,$yp,$xp+$abs_width,$yp+$abs_height); |
---|
| 4214 | $aImg->SetColor($this->color); |
---|
| 4215 | $aImg->Rectangle($xp,$yp,$xp+$abs_width,$yp+$abs_height); |
---|
| 4216 | } |
---|
| 4217 | $aImg->SetLineWeight(1); |
---|
| 4218 | $x1=$xp+$this->mark_abs_size/2; |
---|
| 4219 | $y1=$yp+$aImg->GetFontHeight()*0.5; |
---|
| 4220 | foreach($this->txtcol as $p) { |
---|
| 4221 | $aImg->SetColor($p[1]); |
---|
| 4222 | if ( $p[2] != "" && $p[2]->GetType() > -1 ) { |
---|
| 4223 | $p[2]->Stroke($aImg,$x1+$this->mark_abs_size/2,$y1+$aImg->GetFontHeight()/2); |
---|
| 4224 | } |
---|
| 4225 | elseif ( $p[2] != "" ) { |
---|
| 4226 | $aImg->SetLineStyle($p[3]); |
---|
| 4227 | $aImg->StyleLine($x1,$y1+$aImg->GetFontHeight()/2,$x1+$this->mark_abs_size,$y1+$aImg->GetFontHeight()/2); |
---|
| 4228 | $aImg->StyleLine($x1,$y1+$aImg->GetFontHeight()/2-1,$x1+$this->mark_abs_size,$y1+$aImg->GetFontHeight()/2-1); |
---|
| 4229 | } |
---|
| 4230 | else { |
---|
| 4231 | $aImg->FilledRectangle($x1,$y1,$x1+$this->mark_abs_size,$y1+$this->mark_abs_size); |
---|
| 4232 | $aImg->SetColor($this->color); |
---|
| 4233 | $aImg->Rectangle($x1,$y1,$x1+$this->mark_abs_size,$y1+$this->mark_abs_size); |
---|
| 4234 | } |
---|
| 4235 | $aImg->SetColor($this->color); |
---|
| 4236 | $aImg->SetTextAlign("left"); |
---|
| 4237 | $aImg->StrokeText($x1+$this->mark_abs_size+$this->xmargin,$y1+$this->mark_abs_size,$p[0]); |
---|
| 4238 | if( $this->layout==LEGEND_VERT ) |
---|
| 4239 | $y1 += $this->ymargin+$this->mark_abs_size; |
---|
| 4240 | else |
---|
| 4241 | $x1 += 2*$this->ymargin+$this->mark_abs_size+$aImg->GetTextWidth($p[0]); |
---|
| 4242 | } |
---|
| 4243 | } |
---|
| 4244 | } // Class |
---|
| 4245 | |
---|
| 4246 | //=================================================== |
---|
| 4247 | // CLASS Plot |
---|
| 4248 | // Description: Abstract base class for all concrete plot classes |
---|
| 4249 | //=================================================== |
---|
| 4250 | class Plot { |
---|
| 4251 | var $line_weight=1; |
---|
| 4252 | var $coords=array(); |
---|
| 4253 | var $legend=""; |
---|
| 4254 | var $csimtargets=array(); // Array of targets for CSIM |
---|
| 4255 | var $csimareas=""; // Resultant CSIM area tags |
---|
| 4256 | var $csimalts=null; // ALT:s for corresponding target |
---|
| 4257 | var $color="black"; |
---|
| 4258 | var $numpoints=0; |
---|
| 4259 | var $weight=1; |
---|
| 4260 | //--------------- |
---|
| 4261 | // CONSTRUCTOR |
---|
| 4262 | function Plot(&$aDatay,$aDatax=false) { |
---|
| 4263 | $this->numpoints = count($aDatay); |
---|
| 4264 | if( $this->numpoints==0 ) |
---|
| 4265 | JpGraphError::Raise("<b>JpGraph Error:</b> Empty data array specified for plot. Must have at least one data point."); |
---|
| 4266 | $this->coords[0]=$aDatay; |
---|
| 4267 | if( is_array($aDatax) ) |
---|
| 4268 | $this->coords[1]=$aDatax; |
---|
| 4269 | } |
---|
| 4270 | |
---|
| 4271 | //--------------- |
---|
| 4272 | // PUBLIC METHODS |
---|
| 4273 | |
---|
| 4274 | // Stroke the plot |
---|
| 4275 | // "virtual" function which must be implemented by |
---|
| 4276 | // the subclasses |
---|
| 4277 | function Stroke(&$aImg,&$aXScale,&$aYScale) { |
---|
| 4278 | JpGraphError::Raise("JpGraph: Stroke() must be implemented by concrete subclass to class Plot"); |
---|
| 4279 | } |
---|
| 4280 | |
---|
| 4281 | // Set href targets for CSIM |
---|
| 4282 | function SetCSIMTargets(&$aTargets,$aAlts=null) { |
---|
| 4283 | $this->csimtargets=$aTargets; |
---|
| 4284 | $this->csimalts=$aAlts; |
---|
| 4285 | } |
---|
| 4286 | |
---|
| 4287 | // Get all created areas |
---|
| 4288 | function GetCSIMareas() { |
---|
| 4289 | return $this->csimareas; |
---|
| 4290 | } |
---|
| 4291 | |
---|
| 4292 | // "Virtual" function which gets called before any scale |
---|
| 4293 | // or axis are stroked used to do any plot specific adjustment |
---|
| 4294 | function PreStrokeAdjust(&$aGraph) { |
---|
| 4295 | if( substr($aGraph->axtype,0,4) == "text" && (isset($this->coords[1])) ) |
---|
| 4296 | JpGraphError::Raise("JpGraph: You can't use a text X-scale with specified X-coords. Use a \"int\" or \"lin\" scale instead."); |
---|
| 4297 | return true; |
---|
| 4298 | } |
---|
| 4299 | |
---|
| 4300 | function SetWeight($aWeight) { |
---|
| 4301 | $this->weight=$aWeight; |
---|
| 4302 | } |
---|
| 4303 | |
---|
| 4304 | // Get minimum values in plot |
---|
| 4305 | function Min() { |
---|
| 4306 | if( isset($this->coords[1]) ) |
---|
| 4307 | $x=$this->coords[1]; |
---|
| 4308 | else |
---|
| 4309 | $x=""; |
---|
| 4310 | if( $x != "" && count($x) > 0 ) |
---|
| 4311 | $xm=min($x); |
---|
| 4312 | else |
---|
| 4313 | $xm=0; |
---|
| 4314 | $y=$this->coords[0]; |
---|
| 4315 | if( count($y) > 0 ) { |
---|
| 4316 | $ym = $y[0]; |
---|
| 4317 | $cnt = count($y); |
---|
| 4318 | $i=0; |
---|
| 4319 | while( $i<$cnt && !is_numeric($ym=$y[$i]) ) |
---|
| 4320 | $i++; |
---|
| 4321 | while( $i < $cnt) { |
---|
| 4322 | if( is_numeric($y[$i]) ) |
---|
| 4323 | $ym=min($ym,$y[$i]); |
---|
| 4324 | ++$i; |
---|
| 4325 | } |
---|
| 4326 | } |
---|
| 4327 | else |
---|
| 4328 | $ym=""; |
---|
| 4329 | return array($xm,$ym); |
---|
| 4330 | } |
---|
| 4331 | |
---|
| 4332 | // Get maximum value in plot |
---|
| 4333 | function Max() { |
---|
| 4334 | if( isset($this->coords[1]) ) |
---|
| 4335 | $x=$this->coords[1]; |
---|
| 4336 | else |
---|
| 4337 | $x=""; |
---|
| 4338 | |
---|
| 4339 | if( $x!="" && count($x) > 0 ) |
---|
| 4340 | $xm=max($x); |
---|
| 4341 | else |
---|
| 4342 | $xm=count($this->coords[0])-1; // We count from 0..(n-1) |
---|
| 4343 | $y=$this->coords[0]; |
---|
| 4344 | if( count($y) > 0 ) { |
---|
| 4345 | if( !isset($y[0]) ) { |
---|
| 4346 | $y[0] = 0; |
---|
| 4347 | // Change in 1.5.1 Don't treat this as an error any more. Just silently concert to 0 |
---|
| 4348 | // JpGraphError::Raise("<b>JpGraph Error:</b> You have not specified a y[0] value!!"); |
---|
| 4349 | } |
---|
| 4350 | $cnt = count($y); |
---|
| 4351 | $i=0; |
---|
| 4352 | while( $i<$cnt && !is_numeric($ym=$y[$i]) ) |
---|
| 4353 | $i++; |
---|
| 4354 | while( $i < $cnt ) { |
---|
| 4355 | if( is_numeric($y[$i]) ) $ym=max($ym,$y[$i]); |
---|
| 4356 | ++$i; |
---|
| 4357 | } |
---|
| 4358 | } |
---|
| 4359 | else |
---|
| 4360 | $ym=""; |
---|
| 4361 | return array($xm,$ym); |
---|
| 4362 | } |
---|
| 4363 | |
---|
| 4364 | function SetColor($aColor) { |
---|
| 4365 | $this->color=$aColor; |
---|
| 4366 | } |
---|
| 4367 | |
---|
| 4368 | function SetLegend($aLegend) { |
---|
| 4369 | $this->legend = $aLegend; |
---|
| 4370 | } |
---|
| 4371 | |
---|
| 4372 | function SetLineWeight($aWeight=1) { |
---|
| 4373 | $this->line_weight=$aWeight; |
---|
| 4374 | } |
---|
| 4375 | |
---|
| 4376 | // This method gets called by Graph class to plot anything that should go |
---|
| 4377 | // into the margin after the margin color has been set. |
---|
| 4378 | function StrokeMargin(&$aImg) { |
---|
| 4379 | return true; |
---|
| 4380 | } |
---|
| 4381 | |
---|
| 4382 | // Framework function the chance for each plot class to set a legend |
---|
| 4383 | function Legend(&$aGraph) { |
---|
| 4384 | if( $this->legend!="" ) |
---|
| 4385 | $aGraph->legend->Add($this->legend,$this->color); |
---|
| 4386 | } |
---|
| 4387 | |
---|
| 4388 | } // Class |
---|
| 4389 | |
---|
| 4390 | |
---|
| 4391 | //=================================================== |
---|
| 4392 | // CLASS PlotMark |
---|
| 4393 | // Description: Handles the plot marks in graphs |
---|
| 4394 | // mostly used in line and scatter plots. |
---|
| 4395 | //=================================================== |
---|
| 4396 | class PlotMark { |
---|
| 4397 | var $title, $show=true; |
---|
| 4398 | var $type=-1, $weight=1; |
---|
| 4399 | var $color="black", $width=5, $fill_color="blue"; |
---|
| 4400 | // -------------- |
---|
| 4401 | // CONSTRUCTOR |
---|
| 4402 | function PlotMark() { |
---|
| 4403 | $this->title = new Text(); |
---|
| 4404 | $this->title->Hide(); |
---|
| 4405 | } |
---|
| 4406 | //--------------- |
---|
| 4407 | // PUBLIC METHODS |
---|
| 4408 | function SetType($t) { |
---|
| 4409 | $this->type = $t; |
---|
| 4410 | } |
---|
| 4411 | |
---|
| 4412 | function GetType() { |
---|
| 4413 | return $this->type; |
---|
| 4414 | } |
---|
| 4415 | |
---|
| 4416 | function SetColor($c) { |
---|
| 4417 | $this->color=$c; |
---|
| 4418 | } |
---|
| 4419 | |
---|
| 4420 | function SetFillColor($c) { |
---|
| 4421 | $this->fill_color = $c; |
---|
| 4422 | } |
---|
| 4423 | |
---|
| 4424 | function SetWidth($w) { |
---|
| 4425 | $this->width=$w; |
---|
| 4426 | } |
---|
| 4427 | |
---|
| 4428 | function GetWidth() { |
---|
| 4429 | return $this->width; |
---|
| 4430 | } |
---|
| 4431 | |
---|
| 4432 | function Hide($aHide=true) { |
---|
| 4433 | $this->show = !$aHide; |
---|
| 4434 | } |
---|
| 4435 | |
---|
| 4436 | function Show($aShow=true) { |
---|
| 4437 | $this->show = $aShow; |
---|
| 4438 | } |
---|
| 4439 | |
---|
| 4440 | function Stroke(&$img,$x,$y) { |
---|
| 4441 | if( !$this->show ) return; |
---|
| 4442 | $dx=round($this->width/2,0); |
---|
| 4443 | $dy=round($this->width/2,0); |
---|
| 4444 | $pts=0; |
---|
| 4445 | switch( $this->type ) { |
---|
| 4446 | case MARK_SQUARE: |
---|
| 4447 | $c[]=$x-$dx;$c[]=$y-$dy; |
---|
| 4448 | $c[]=$x+$dx;$c[]=$y-$dy; |
---|
| 4449 | $c[]=$x+$dx;$c[]=$y+$dy; |
---|
| 4450 | $c[]=$x-$dx;$c[]=$y+$dy; |
---|
| 4451 | $pts=4; |
---|
| 4452 | break; |
---|
| 4453 | case MARK_UTRIANGLE: |
---|
| 4454 | ++$dx;++$dy; |
---|
| 4455 | $c[]=$x-$dx;$c[]=$y+0.87*$dy; // tan(60)/2*$dx |
---|
| 4456 | $c[]=$x;$c[]=$y-0.87*$dy; |
---|
| 4457 | $c[]=$x+$dx;$c[]=$y+0.87*$dy; |
---|
| 4458 | $pts=3; |
---|
| 4459 | break; |
---|
| 4460 | case MARK_DTRIANGLE: |
---|
| 4461 | ++$dx;++$dy; |
---|
| 4462 | $c[]=$x;$c[]=$y+0.87*$dy; // tan(60)/2*$dx |
---|
| 4463 | $c[]=$x-$dx;$c[]=$y-0.87*$dy; |
---|
| 4464 | $c[]=$x+$dx;$c[]=$y-0.87*$dy; |
---|
| 4465 | $pts=3; |
---|
| 4466 | break; |
---|
| 4467 | case MARK_DIAMOND: |
---|
| 4468 | $c[]=$x;$c[]=$y+$dy; |
---|
| 4469 | $c[]=$x-$dx;$c[]=$y; |
---|
| 4470 | $c[]=$x;$c[]=$y-$dy; |
---|
| 4471 | $c[]=$x+$dx;$c[]=$y; |
---|
| 4472 | $pts=4; |
---|
| 4473 | break; |
---|
| 4474 | } |
---|
| 4475 | if( $pts>0 ) { |
---|
| 4476 | $img->SetLineWeight($this->weight); |
---|
| 4477 | $img->SetColor($this->fill_color); |
---|
| 4478 | $img->FilledPolygon($c); |
---|
| 4479 | $img->SetColor($this->color); |
---|
| 4480 | $img->Polygon($c); |
---|
| 4481 | } |
---|
| 4482 | elseif( $this->type==MARK_CIRCLE ) { |
---|
| 4483 | $img->SetColor($this->color); |
---|
| 4484 | $img->Circle($x,$y,$this->width); |
---|
| 4485 | } |
---|
| 4486 | elseif( $this->type==MARK_FILLEDCIRCLE ) { |
---|
| 4487 | $img->SetColor($this->fill_color); |
---|
| 4488 | $img->FilledCircle($x,$y,$this->width); |
---|
| 4489 | $img->SetColor($this->color); |
---|
| 4490 | $img->Circle($x,$y,$this->width); |
---|
| 4491 | } |
---|
| 4492 | elseif( $this->type==MARK_CROSS ) { |
---|
| 4493 | // Oversize by a pixel to match the X |
---|
| 4494 | $img->SetColor($this->color); |
---|
| 4495 | $img->SetLineWeight($this->weight); |
---|
| 4496 | $img->Line($x,$y+$dy+1,$x,$y-$dy-1); |
---|
| 4497 | $img->Line($x-$dx-1,$y,$x+$dx+1,$y); |
---|
| 4498 | } |
---|
| 4499 | elseif( $this->type==MARK_X ) { |
---|
| 4500 | $img->SetColor($this->color); |
---|
| 4501 | $img->SetLineWeight($this->weight); |
---|
| 4502 | $img->Line($x+$dx,$y+$dy,$x-$dx,$y-$dy); |
---|
| 4503 | $img->Line($x-$dx,$y+$dy,$x+$dx,$y-$dy); |
---|
| 4504 | } |
---|
| 4505 | elseif( $this->type==MARK_STAR ) { |
---|
| 4506 | $img->SetColor($this->color); |
---|
| 4507 | $img->SetLineWeight($this->weight); |
---|
| 4508 | $img->Line($x+$dx,$y+$dy,$x-$dx,$y-$dy); |
---|
| 4509 | $img->Line($x-$dx,$y+$dy,$x+$dx,$y-$dy); |
---|
| 4510 | // Oversize by a pixel to match the X |
---|
| 4511 | $img->Line($x,$y+$dy+1,$x,$y-$dy-1); |
---|
| 4512 | $img->Line($x-$dx-1,$y,$x+$dx+1,$y); |
---|
| 4513 | } |
---|
| 4514 | |
---|
| 4515 | // Stroke title |
---|
| 4516 | $this->title->Align("center","center"); |
---|
| 4517 | $this->title->Stroke($img,$x,$y); |
---|
| 4518 | } |
---|
| 4519 | } // Class |
---|
| 4520 | |
---|
| 4521 | //============================================================================== |
---|
| 4522 | // The following section contains classes to implement the "band" functionality |
---|
| 4523 | //============================================================================== |
---|
| 4524 | |
---|
| 4525 | // Utility class to hold coordinates for a rectangle |
---|
| 4526 | class Rectangle { |
---|
| 4527 | var $x,$y,$w,$h; |
---|
| 4528 | var $xe, $ye; |
---|
| 4529 | function Rectangle($aX,$aY,$aWidth,$aHeight) { |
---|
| 4530 | $this->x=$aX; |
---|
| 4531 | $this->y=$aY; |
---|
| 4532 | $this->w=$aWidth; |
---|
| 4533 | $this->h=$aHeight; |
---|
| 4534 | $this->xe=$aX+$aWidth-1; |
---|
| 4535 | $this->ye=$aY+$aHeight-1; |
---|
| 4536 | } |
---|
| 4537 | } |
---|
| 4538 | |
---|
| 4539 | //===================================================================== |
---|
| 4540 | // Class RectPattern |
---|
| 4541 | // Base class for pattern hierarchi that is used to display patterned |
---|
| 4542 | // bands on the graph. Any subclass that doesn't override Stroke() |
---|
| 4543 | // must at least implement method DoPattern(&$aImg) which is responsible |
---|
| 4544 | // for drawing the pattern onto the graph. |
---|
| 4545 | //===================================================================== |
---|
| 4546 | class RectPattern { |
---|
| 4547 | var $color; |
---|
| 4548 | var $weight; |
---|
| 4549 | var $rect=null; |
---|
| 4550 | var $doframe=true; |
---|
| 4551 | var $linespacing; // Line spacing in pixels |
---|
| 4552 | var $iBackgroundColor=-1; // Default is no background fill |
---|
| 4553 | |
---|
| 4554 | function RectPattern($aColor,$aWeight=1) { |
---|
| 4555 | $this->color = $aColor; |
---|
| 4556 | $this->weight = $aWeight; |
---|
| 4557 | } |
---|
| 4558 | |
---|
| 4559 | function SetBackground($aBackgroundColor) { |
---|
| 4560 | $this->iBackgroundColor=$aBackgroundColor; |
---|
| 4561 | } |
---|
| 4562 | |
---|
| 4563 | function SetPos(&$aRect) { |
---|
| 4564 | $this->rect = $aRect; |
---|
| 4565 | } |
---|
| 4566 | |
---|
| 4567 | function ShowFrame($aShow=true) { |
---|
| 4568 | $this->doframe=$aShow; |
---|
| 4569 | } |
---|
| 4570 | |
---|
| 4571 | function SetDensity($aDens) { |
---|
| 4572 | if( $aDens <1 || $aDens > 100 ) |
---|
| 4573 | JpGraphError::Raise("<b>JpGraph Error:</b> Desity for pattern must be between 1 and 100. (You tried $aDens)"); |
---|
| 4574 | // 1% corresponds to linespacing=50 |
---|
| 4575 | // 100 % corresponds to linespacing 1 |
---|
| 4576 | $this->linespacing = floor(((100-$aDens)/100.0)*50)+1; |
---|
| 4577 | |
---|
| 4578 | } |
---|
| 4579 | |
---|
| 4580 | function Stroke(&$aImg) { |
---|
| 4581 | if( $this->rect == null ) |
---|
| 4582 | JpGraphError::Raise("<b>JpGraph Error:</b> No positions specified for pattern."); |
---|
| 4583 | |
---|
| 4584 | if( !(is_numeric($this->iBackgroundColor) && $this->iBackgroundColor==-1) ) { |
---|
| 4585 | $aImg->SetColor($this->iBackgroundColor); |
---|
| 4586 | $aImg->FilledRectangle($this->rect->x,$this->rect->y,$this->rect->xe,$this->rect->ye); |
---|
| 4587 | } |
---|
| 4588 | |
---|
| 4589 | $aImg->SetColor($this->color); |
---|
| 4590 | $aImg->SetLineWeight($this->weight); |
---|
| 4591 | |
---|
| 4592 | // Virtual function implemented by subclass |
---|
| 4593 | $this->DoPattern($aImg); |
---|
| 4594 | |
---|
| 4595 | // Frame around the pattern area |
---|
| 4596 | if( $this->doframe ) |
---|
| 4597 | $aImg->Rectangle($this->rect->x,$this->rect->y,$this->rect->xe,$this->rect->ye); |
---|
| 4598 | } |
---|
| 4599 | |
---|
| 4600 | } |
---|
| 4601 | |
---|
| 4602 | |
---|
| 4603 | //===================================================================== |
---|
| 4604 | // Class RectPatternSolid |
---|
| 4605 | // Implements a solid band |
---|
| 4606 | //===================================================================== |
---|
| 4607 | class RectPatternSolid extends RectPattern { |
---|
| 4608 | |
---|
| 4609 | function RectPatternSolid($aColor="black",$aWeight=1) { |
---|
| 4610 | parent::RectPattern($aColor,$aWeight); |
---|
| 4611 | } |
---|
| 4612 | |
---|
| 4613 | function Stroke(&$aImg) { |
---|
| 4614 | $aImg->SetColor($this->color); |
---|
| 4615 | $aImg->FilledRectangle($this->rect->x,$this->rect->y, |
---|
| 4616 | $this->rect->xe,$this->rect->ye); |
---|
| 4617 | } |
---|
| 4618 | } |
---|
| 4619 | |
---|
| 4620 | //===================================================================== |
---|
| 4621 | // Class RectPatternHor |
---|
| 4622 | // Implements horizontal line pattern |
---|
| 4623 | //===================================================================== |
---|
| 4624 | class RectPatternHor extends RectPattern { |
---|
| 4625 | |
---|
| 4626 | function RectPatternHor($aColor="black",$aWeight=1,$aLineSpacing=7) { |
---|
| 4627 | parent::RectPattern($aColor,$aWeight); |
---|
| 4628 | $this->linespacing = $aLineSpacing; |
---|
| 4629 | } |
---|
| 4630 | |
---|
| 4631 | function DoPattern(&$aImg) { |
---|
| 4632 | $x0 = $this->rect->x; |
---|
| 4633 | $x1 = $this->rect->xe; |
---|
| 4634 | $y = $this->rect->y; |
---|
| 4635 | while( $y < $this->rect->ye ) { |
---|
| 4636 | $aImg->Line($x0,$y,$x1,$y); |
---|
| 4637 | $y += $this->linespacing; |
---|
| 4638 | } |
---|
| 4639 | } |
---|
| 4640 | } |
---|
| 4641 | |
---|
| 4642 | //===================================================================== |
---|
| 4643 | // Class RectPatternVert |
---|
| 4644 | // Implements vertical line pattern |
---|
| 4645 | //===================================================================== |
---|
| 4646 | class RectPatternVert extends RectPattern { |
---|
| 4647 | var $linespacing=10; // Line spacing in pixels |
---|
| 4648 | |
---|
| 4649 | function RectPatternVert($aColor="black",$aWeight=1,$aLineSpacing=7) { |
---|
| 4650 | parent::RectPattern($aColor,$aWeight); |
---|
| 4651 | $this->linespacing = $aLineSpacing; |
---|
| 4652 | } |
---|
| 4653 | |
---|
| 4654 | //-------------------- |
---|
| 4655 | // Private methods |
---|
| 4656 | // |
---|
| 4657 | function DoPattern(&$aImg) { |
---|
| 4658 | $x = $this->rect->x; |
---|
| 4659 | $y0 = $this->rect->y; |
---|
| 4660 | $y1 = $this->rect->ye; |
---|
| 4661 | while( $x < $this->rect->xe ) { |
---|
| 4662 | $aImg->Line($x,$y0,$x,$y1); |
---|
| 4663 | $x += $this->linespacing; |
---|
| 4664 | } |
---|
| 4665 | } |
---|
| 4666 | } |
---|
| 4667 | |
---|
| 4668 | |
---|
| 4669 | //===================================================================== |
---|
| 4670 | // Class RectPatternRDiag |
---|
| 4671 | // Implements right diagonal pattern |
---|
| 4672 | //===================================================================== |
---|
| 4673 | class RectPatternRDiag extends RectPattern { |
---|
| 4674 | var $linespacing; // Line spacing in pixels |
---|
| 4675 | |
---|
| 4676 | function RectPatternRDiag($aColor="black",$aWeight=1,$aLineSpacing=12) { |
---|
| 4677 | parent::RectPattern($aColor,$aWeight); |
---|
| 4678 | $this->linespacing = $aLineSpacing; |
---|
| 4679 | } |
---|
| 4680 | |
---|
| 4681 | function DoPattern(&$aImg) { |
---|
| 4682 | // -------------------- |
---|
| 4683 | // | / / / / /| |
---|
| 4684 | // |/ / / / / | |
---|
| 4685 | // | / / / / | |
---|
| 4686 | // -------------------- |
---|
| 4687 | $xe = $this->rect->xe; |
---|
| 4688 | $ye = $this->rect->ye; |
---|
| 4689 | $x0 = $this->rect->x + round($this->linespacing/2); |
---|
| 4690 | $y0 = $this->rect->y; |
---|
| 4691 | $x1 = $this->rect->x; |
---|
| 4692 | $y1 = $this->rect->y + round($this->linespacing/2); |
---|
| 4693 | |
---|
| 4694 | while($x0<=$xe && $y1<=$ye) { |
---|
| 4695 | $aImg->Line($x0,$y0,$x1,$y1); |
---|
| 4696 | $x0 += $this->linespacing; |
---|
| 4697 | $y1 += $this->linespacing; |
---|
| 4698 | } |
---|
| 4699 | |
---|
| 4700 | $x1 = $this->rect->x + ($y1-$ye); |
---|
| 4701 | //$x1 = $this->rect->x +$this->linespacing; |
---|
| 4702 | $y0=$this->rect->y; $y1=$ye; |
---|
| 4703 | while( $x0 <= $xe ) { |
---|
| 4704 | $aImg->Line($x0,$y0,$x1,$y1); |
---|
| 4705 | $x0 += $this->linespacing; |
---|
| 4706 | $x1 += $this->linespacing; |
---|
| 4707 | } |
---|
| 4708 | |
---|
| 4709 | $y0=$this->rect->y + ($x0-$xe); |
---|
| 4710 | $x0=$xe; |
---|
| 4711 | while( $y0 <= $ye ) { |
---|
| 4712 | $aImg->Line($x0,$y0,$x1,$y1); |
---|
| 4713 | $y0 += $this->linespacing; |
---|
| 4714 | $x1 += $this->linespacing; |
---|
| 4715 | } |
---|
| 4716 | } |
---|
| 4717 | |
---|
| 4718 | } |
---|
| 4719 | |
---|
| 4720 | //===================================================================== |
---|
| 4721 | // Class RectPatternLDiag |
---|
| 4722 | // Implements left diagonal pattern |
---|
| 4723 | //===================================================================== |
---|
| 4724 | class RectPatternLDiag extends RectPattern { |
---|
| 4725 | var $linespacing; // Line spacing in pixels |
---|
| 4726 | |
---|
| 4727 | function RectPatternLDiag($aColor="black",$aWeight=1,$aLineSpacing=12) { |
---|
| 4728 | $this->linespacing = $aLineSpacing; |
---|
| 4729 | parent::RectPattern($aColor,$aWeight); |
---|
| 4730 | } |
---|
| 4731 | |
---|
| 4732 | function DoPattern(&$aImg) { |
---|
| 4733 | // -------------------- |
---|
| 4734 | // |\ \ \ \ \ | |
---|
| 4735 | // | \ \ \ \ \| |
---|
| 4736 | // | \ \ \ \ | |
---|
| 4737 | // |------------------| |
---|
| 4738 | $xe = $this->rect->xe; |
---|
| 4739 | $ye = $this->rect->ye; |
---|
| 4740 | $x0 = $this->rect->x + round($this->linespacing/2); |
---|
| 4741 | $y0 = $this->rect->ye; |
---|
| 4742 | $x1 = $this->rect->x; |
---|
| 4743 | $y1 = $this->rect->ye - round($this->linespacing/2); |
---|
| 4744 | |
---|
| 4745 | while($x0<=$xe && $y1>=$this->rect->y) { |
---|
| 4746 | $aImg->Line($x0,$y0,$x1,$y1); |
---|
| 4747 | $x0 += $this->linespacing; |
---|
| 4748 | $y1 -= $this->linespacing; |
---|
| 4749 | } |
---|
| 4750 | |
---|
| 4751 | $x1 = $this->rect->x + ($this->rect->y-$y1); |
---|
| 4752 | $y0=$ye; $y1=$this->rect->y; |
---|
| 4753 | while( $x0 <= $xe ) { |
---|
| 4754 | $aImg->Line($x0,$y0,$x1,$y1); |
---|
| 4755 | $x0 += $this->linespacing; |
---|
| 4756 | $x1 += $this->linespacing; |
---|
| 4757 | } |
---|
| 4758 | |
---|
| 4759 | $y0=$this->rect->ye - ($x0-$xe); |
---|
| 4760 | $x0=$xe; |
---|
| 4761 | while( $y0 >= $this->rect->y ) { |
---|
| 4762 | $aImg->Line($x0,$y0,$x1,$y1); |
---|
| 4763 | $y0 -= $this->linespacing; |
---|
| 4764 | $x1 += $this->linespacing; |
---|
| 4765 | } |
---|
| 4766 | } |
---|
| 4767 | } |
---|
| 4768 | |
---|
| 4769 | //===================================================================== |
---|
| 4770 | // Class RectPattern3DPlane |
---|
| 4771 | // Implements "3D" plane pattern |
---|
| 4772 | //===================================================================== |
---|
| 4773 | class RectPattern3DPlane extends RectPattern { |
---|
| 4774 | var $alpha=50; // Parameter that specifies the distance |
---|
| 4775 | // to "simulated" horizon in pixel from the |
---|
| 4776 | // top of the band. Specifies how fast the lines |
---|
| 4777 | // converge. |
---|
| 4778 | |
---|
| 4779 | function RectPattern3DPlane($aColor="black",$aWeight=1) { |
---|
| 4780 | parent::RectPattern($aColor,$aWeight); |
---|
| 4781 | $this->SetDensity(10); // Slightly larger default |
---|
| 4782 | } |
---|
| 4783 | |
---|
| 4784 | function SetHorizon($aHorizon) { |
---|
| 4785 | $this->alpha=$aHorizon; |
---|
| 4786 | } |
---|
| 4787 | |
---|
| 4788 | function DoPattern(&$aImg) { |
---|
| 4789 | // "Fake" a nice 3D grid-effect. |
---|
| 4790 | $x0 = $this->rect->x + $this->rect->w/2; |
---|
| 4791 | $y0 = $this->rect->y; |
---|
| 4792 | $x1 = $x0; |
---|
| 4793 | $y1 = $this->rect->ye; |
---|
| 4794 | $x0_right = $x0; |
---|
| 4795 | $x1_right = $x1; |
---|
| 4796 | |
---|
| 4797 | // BTW "apa" means monkey in Swedish but is really a shortform for |
---|
| 4798 | // "alpha+a" which was the labels I used on paper when I derived the |
---|
| 4799 | // geometric to get the 3D perspective right. |
---|
| 4800 | // $apa is the height of the bounding rectangle plus the distance to the |
---|
| 4801 | // artifical horizon (alpha) |
---|
| 4802 | $apa = $this->rect->h + $this->alpha; |
---|
| 4803 | |
---|
| 4804 | // Three cases and three loops |
---|
| 4805 | // 1) The endpoint of the line ends on the bottom line |
---|
| 4806 | // 2) The endpoint ends on the side |
---|
| 4807 | // 3) Horizontal lines |
---|
| 4808 | |
---|
| 4809 | // Endpoint falls on bottom line |
---|
| 4810 | $middle=$this->rect->x + $this->rect->w/2; |
---|
| 4811 | $dist=$this->linespacing; |
---|
| 4812 | $factor=$this->alpha /($apa); |
---|
| 4813 | while($x1>$this->rect->x) { |
---|
| 4814 | $aImg->Line($x0,$y0,$x1,$y1); |
---|
| 4815 | $aImg->Line($x0_right,$y0,$x1_right,$y1); |
---|
| 4816 | $x1 = $middle - $dist; |
---|
| 4817 | $x0 = $middle - $dist * $factor; |
---|
| 4818 | $x1_right = $middle + $dist; |
---|
| 4819 | $x0_right = $middle + $dist * $factor; |
---|
| 4820 | $dist += $this->linespacing; |
---|
| 4821 | } |
---|
| 4822 | |
---|
| 4823 | // Endpoint falls on sides |
---|
| 4824 | $dist -= $this->linespacing; |
---|
| 4825 | $d=$this->rect->w/2; |
---|
| 4826 | $c = $apa - $d*$apa/$dist; |
---|
| 4827 | while( $x0>$this->rect->x ) { |
---|
| 4828 | $aImg->Line($x0,$y0,$this->rect->x,$this->rect->ye-$c); |
---|
| 4829 | $aImg->Line($x0_right,$y0,$this->rect->xe,$this->rect->ye-$c); |
---|
| 4830 | $dist += $this->linespacing; |
---|
| 4831 | $x0 = $middle - $dist * $factor; |
---|
| 4832 | $x1 = $middle - $dist; |
---|
| 4833 | $x0_right = $middle + $dist * $factor; |
---|
| 4834 | $c = $apa - $d*$apa/$dist; |
---|
| 4835 | } |
---|
| 4836 | |
---|
| 4837 | // Horizontal lines |
---|
| 4838 | // They need some serious consideration since they are a function |
---|
| 4839 | // of perspective depth (alpha) and density (linespacing) |
---|
| 4840 | $x0=$this->rect->x; |
---|
| 4841 | $x1=$this->rect->xe; |
---|
| 4842 | $y=$this->rect->ye; |
---|
| 4843 | |
---|
| 4844 | // The first line is drawn directly. Makes the loop below slightly |
---|
| 4845 | // more readable. |
---|
| 4846 | $aImg->Line($x0,$y,$x1,$y); |
---|
| 4847 | $hls = $this->linespacing; |
---|
| 4848 | |
---|
| 4849 | // A correction factor for vertical "brick" line spacing to account for |
---|
| 4850 | // a) the difference in number of pixels hor vs vert |
---|
| 4851 | // b) visual apperance to make the first layer of "bricks" look more |
---|
| 4852 | // square. |
---|
| 4853 | $vls = $this->linespacing*0.6; |
---|
| 4854 | |
---|
| 4855 | $ds = $hls*($apa-$vls)/$apa; |
---|
| 4856 | // Get the slope for the "perspective line" going from bottom right |
---|
| 4857 | // corner to top left corner of the "first" brick. |
---|
| 4858 | |
---|
| 4859 | // Uncomment the following lines if you want to get a visual understanding |
---|
| 4860 | // of what this helpline does. BTW this mimics the way you would get the |
---|
| 4861 | // perspective right when drawing on paper. |
---|
| 4862 | /* |
---|
| 4863 | $x0 = $middle; |
---|
| 4864 | $y0 = $this->rect->ye; |
---|
| 4865 | $len=floor(($this->rect->ye-$this->rect->y)/$vls); |
---|
| 4866 | $x1 = $middle-round($len*$ds); |
---|
| 4867 | $y1 = $this->rect->ye-$len*$vls; |
---|
| 4868 | $aImg->PushColor("red"); |
---|
| 4869 | $aImg->Line($x0,$y0,$x1,$y1); |
---|
| 4870 | $aImg->PopColor(); |
---|
| 4871 | */ |
---|
| 4872 | |
---|
| 4873 | $y -= $vls; |
---|
| 4874 | $k=($this->rect->ye-($this->rect->ye-$vls))/($middle-($middle-$ds)); |
---|
| 4875 | $dist = $hls; |
---|
| 4876 | while( $y>$this->rect->y ) { |
---|
| 4877 | $aImg->Line($this->rect->x,$y,$this->rect->xe,$y); |
---|
| 4878 | $adj = $k*$dist/(1+$dist*$k/$apa); |
---|
| 4879 | if( $adj < 2 ) $adj=2; |
---|
| 4880 | $y = $this->rect->ye - round($adj); |
---|
| 4881 | $dist += $hls; |
---|
| 4882 | } |
---|
| 4883 | } |
---|
| 4884 | } |
---|
| 4885 | |
---|
| 4886 | //===================================================================== |
---|
| 4887 | // Class RectPatternCross |
---|
| 4888 | // Vert/Hor crosses |
---|
| 4889 | //===================================================================== |
---|
| 4890 | class RectPatternCross extends RectPattern { |
---|
| 4891 | var $vert=null; |
---|
| 4892 | var $hor=null; |
---|
| 4893 | function RectPatternCross($aColor="black",$aWeight=1) { |
---|
| 4894 | parent::RectPattern($aColor,$aWeight); |
---|
| 4895 | $this->vert = new RectPatternVert($aColor,$aWeight); |
---|
| 4896 | $this->hor = new RectPatternHor($aColor,$aWeight); |
---|
| 4897 | } |
---|
| 4898 | |
---|
| 4899 | function SetOrder($aDepth) { |
---|
| 4900 | $this->vert->SetOrder($aDepth); |
---|
| 4901 | $this->hor->SetOrder($aDepth); |
---|
| 4902 | } |
---|
| 4903 | |
---|
| 4904 | function SetPos(&$aRect) { |
---|
| 4905 | parent::SetPos($aRect); |
---|
| 4906 | $this->vert->SetPos($aRect); |
---|
| 4907 | $this->hor->SetPos($aRect); |
---|
| 4908 | } |
---|
| 4909 | |
---|
| 4910 | function SetDensity($aDens) { |
---|
| 4911 | $this->vert->SetDensity($aDens); |
---|
| 4912 | $this->hor->SetDensity($aDens); |
---|
| 4913 | } |
---|
| 4914 | |
---|
| 4915 | function DoPattern(&$aImg) { |
---|
| 4916 | $this->vert->DoPattern($aImg); |
---|
| 4917 | $this->hor->DoPattern($aImg); |
---|
| 4918 | } |
---|
| 4919 | } |
---|
| 4920 | |
---|
| 4921 | //===================================================================== |
---|
| 4922 | // Class RectPatternDiagCross |
---|
| 4923 | // Vert/Hor crosses |
---|
| 4924 | //===================================================================== |
---|
| 4925 | |
---|
| 4926 | class RectPatternDiagCross extends RectPattern { |
---|
| 4927 | var $left=null; |
---|
| 4928 | var $right=null; |
---|
| 4929 | function RectPatternDiagCross($aColor="black",$aWeight=1) { |
---|
| 4930 | parent::RectPattern($aColor,$aWeight); |
---|
| 4931 | $this->right = new RectPatternRDiag($aColor,$aWeight); |
---|
| 4932 | $this->left = new RectPatternLDiag($aColor,$aWeight); |
---|
| 4933 | } |
---|
| 4934 | |
---|
| 4935 | function SetOrder($aDepth) { |
---|
| 4936 | $this->left->SetOrder($aDepth); |
---|
| 4937 | $this->right->SetOrder($aDepth); |
---|
| 4938 | } |
---|
| 4939 | |
---|
| 4940 | function SetPos(&$aRect) { |
---|
| 4941 | parent::SetPos($aRect); |
---|
| 4942 | $this->left->SetPos($aRect); |
---|
| 4943 | $this->right->SetPos($aRect); |
---|
| 4944 | } |
---|
| 4945 | |
---|
| 4946 | function SetDensity($aDens) { |
---|
| 4947 | $this->left->SetDensity($aDens); |
---|
| 4948 | $this->right->SetDensity($aDens); |
---|
| 4949 | } |
---|
| 4950 | |
---|
| 4951 | function DoPattern(&$aImg) { |
---|
| 4952 | $this->left->DoPattern($aImg); |
---|
| 4953 | $this->right->DoPattern($aImg); |
---|
| 4954 | } |
---|
| 4955 | |
---|
| 4956 | } |
---|
| 4957 | |
---|
| 4958 | //===================================================================== |
---|
| 4959 | // Class RectPatternFactory |
---|
| 4960 | // Factory class for rectangular pattern |
---|
| 4961 | //===================================================================== |
---|
| 4962 | class RectPatternFactory { |
---|
| 4963 | function RectPatternFactory() { |
---|
| 4964 | // Empty |
---|
| 4965 | } |
---|
| 4966 | function Create($aPattern,$aColor,$aWeight=1) { |
---|
| 4967 | switch($aPattern) { |
---|
| 4968 | case BAND_RDIAG: |
---|
| 4969 | $obj = new RectPatternRDiag($aColor,$aWeight); |
---|
| 4970 | break; |
---|
| 4971 | case BAND_LDIAG: |
---|
| 4972 | $obj = new RectPatternLDiag($aColor,$aWeight); |
---|
| 4973 | break; |
---|
| 4974 | case BAND_SOLID: |
---|
| 4975 | $obj = new RectPatternSolid($aColor,$aWeight); |
---|
| 4976 | break; |
---|
| 4977 | case BAND_LVERT: |
---|
| 4978 | $obj = new RectPatternVert($aColor,$aWeight); |
---|
| 4979 | break; |
---|
| 4980 | case BAND_LHOR: |
---|
| 4981 | $obj = new RectPatternHor($aColor,$aWeight); |
---|
| 4982 | break; |
---|
| 4983 | case BAND_3DPLANE: |
---|
| 4984 | $obj = new RectPattern3DPlane($aColor,$aWeight); |
---|
| 4985 | break; |
---|
| 4986 | case BAND_HVCROSS: |
---|
| 4987 | $obj = new RectPatternCross($aColor,$aWeight); |
---|
| 4988 | break; |
---|
| 4989 | case BAND_DIAGCROSS: |
---|
| 4990 | $obj = new RectPatternDiagCross($aColor,$aWeight); |
---|
| 4991 | break; |
---|
| 4992 | default: |
---|
| 4993 | JpGraphError::Raise("<b>JpGraph Error:</b> Unknown pattern specification ($aPattern)"); |
---|
| 4994 | } |
---|
| 4995 | return $obj; |
---|
| 4996 | } |
---|
| 4997 | } |
---|
| 4998 | |
---|
| 4999 | |
---|
| 5000 | //===================================================================== |
---|
| 5001 | // Class PlotBand |
---|
| 5002 | // Factory class which is used by the client. |
---|
| 5003 | // It is reposnsible for factoring the corresponding pattern |
---|
| 5004 | // concrete class. |
---|
| 5005 | //===================================================================== |
---|
| 5006 | class PlotBand { |
---|
| 5007 | var $prect=null; |
---|
| 5008 | var $depth; |
---|
| 5009 | |
---|
| 5010 | function PlotBand($aDir,$aPattern,$aMin,$aMax,$aColor="black",$aWeight=1,$aDepth=DEPTH_BACK) { |
---|
| 5011 | $f = new RectPatternFactory(); |
---|
| 5012 | $this->prect = $f->Create($aPattern,$aColor,$aWeight); |
---|
| 5013 | $this->dir = $aDir; |
---|
| 5014 | $this->min = $aMin; |
---|
| 5015 | $this->max = $aMax; |
---|
| 5016 | $this->depth=$aDepth; |
---|
| 5017 | } |
---|
| 5018 | |
---|
| 5019 | // Set position. aRect contains absolute image coordinates |
---|
| 5020 | function SetPos(&$aRect) { |
---|
| 5021 | assert( $this->prect != null ) ; |
---|
| 5022 | $this->prect->SetPos($aRect); |
---|
| 5023 | } |
---|
| 5024 | |
---|
| 5025 | function ShowFrame($aFlag=true) { |
---|
| 5026 | $this->prect->ShowFrame($aFlag); |
---|
| 5027 | } |
---|
| 5028 | |
---|
| 5029 | // Set z-order. In front of pplot or in the back |
---|
| 5030 | function SetOrder($aDepth) { |
---|
| 5031 | $this->depth=$aDepth; |
---|
| 5032 | } |
---|
| 5033 | |
---|
| 5034 | function SetDensity($aDens) { |
---|
| 5035 | $this->prect->SetDensity($aDens); |
---|
| 5036 | } |
---|
| 5037 | |
---|
| 5038 | function GetDir() { |
---|
| 5039 | return $this->dir; |
---|
| 5040 | } |
---|
| 5041 | |
---|
| 5042 | function GetMin() { |
---|
| 5043 | return $this->min; |
---|
| 5044 | } |
---|
| 5045 | |
---|
| 5046 | function GetMax() { |
---|
| 5047 | return $this->max; |
---|
| 5048 | } |
---|
| 5049 | |
---|
| 5050 | // Display band |
---|
| 5051 | function Stroke(&$aImg,&$aXScale,&$aYScale) { |
---|
| 5052 | assert( $this->prect != null ) ; |
---|
| 5053 | if( $this->dir == HORIZONTAL ) { |
---|
| 5054 | if( !is_numeric($this->min) && $this->min == "min" ) $this->min = $aYScale->GetMinVal(); |
---|
| 5055 | if( !is_numeric($this->max) && $this->max == "max" ) $this->max = $aYScale->GetMaxVal(); |
---|
| 5056 | $x=$aXScale->scale_abs[0]; |
---|
| 5057 | $y=$aYScale->Translate($this->max); |
---|
| 5058 | $width=$aXScale->scale_abs[1]-$aXScale->scale_abs[0]+1; |
---|
| 5059 | $height=abs($y-$aYScale->Translate($this->min))+1; |
---|
| 5060 | $this->prect->SetPos(new Rectangle($x,$y,$width,$height)); |
---|
| 5061 | } |
---|
| 5062 | else { // VERTICAL |
---|
| 5063 | if( !is_numeric($this->min) && $this->min == "min" ) $this->min = $aXScale->GetMinVal(); |
---|
| 5064 | if( !is_numeric($this->max) && $this->max == "max" ) $this->max = $aXScale->GetMaxVal(); |
---|
| 5065 | $y=$aYScale->scale_abs[1]; |
---|
| 5066 | $x=$aXScale->Translate($this->min); |
---|
| 5067 | $height=abs($aYScale->scale_abs[1]-$aYScale->scale_abs[0]); |
---|
| 5068 | $width=abs($x-$aXScale->Translate($this->max)); |
---|
| 5069 | $this->prect->SetPos(new Rectangle($x,$y,$width,$height)); |
---|
| 5070 | } |
---|
| 5071 | $this->prect->Stroke($aImg); |
---|
| 5072 | } |
---|
| 5073 | } |
---|
| 5074 | |
---|
| 5075 | //=================================================== |
---|
| 5076 | // CLASS PlotLine |
---|
| 5077 | // Description: |
---|
| 5078 | // Data container class to hold properties for a static |
---|
| 5079 | // line that is drawn directly in the plot area. |
---|
| 5080 | // Usefull to add static borders inside a plot to show |
---|
| 5081 | // for example set-values |
---|
| 5082 | //=================================================== |
---|
| 5083 | class PlotLine { |
---|
| 5084 | var $weight=1; |
---|
| 5085 | var $color="black"; |
---|
| 5086 | var $direction=-1; |
---|
| 5087 | var $scaleposition; |
---|
| 5088 | |
---|
| 5089 | //--------------- |
---|
| 5090 | // CONSTRUCTOR |
---|
| 5091 | function PlotLine($aDir=HORIZONTAL,$aPos=0,$aColor="black",$aWeight=1) { |
---|
| 5092 | $this->direction = $aDir; |
---|
| 5093 | $this->color=$aColor; |
---|
| 5094 | $this->weight=$aWeight; |
---|
| 5095 | $this->scaleposition=$aPos; |
---|
| 5096 | } |
---|
| 5097 | |
---|
| 5098 | //--------------- |
---|
| 5099 | // PUBLIC METHODS |
---|
| 5100 | function SetPosition($aScalePosition) { |
---|
| 5101 | $this->scaleposition=$aScalePosition; |
---|
| 5102 | } |
---|
| 5103 | |
---|
| 5104 | function SetDirection($aDir) { |
---|
| 5105 | $this->direction = $aDir; |
---|
| 5106 | } |
---|
| 5107 | |
---|
| 5108 | function SetColor($aColor) { |
---|
| 5109 | $this->color=$aColor; |
---|
| 5110 | } |
---|
| 5111 | |
---|
| 5112 | function SetWeight($aWeight) { |
---|
| 5113 | $this->weight=$aWeight; |
---|
| 5114 | } |
---|
| 5115 | |
---|
| 5116 | function Stroke(&$aImg,&$aXScale,&$aYScale) { |
---|
| 5117 | $aImg->SetColor($this->color); |
---|
| 5118 | $aImg->SetLineWeight($this->weight); |
---|
| 5119 | if( $this->direction == VERTICAL ) { |
---|
| 5120 | $ymin_abs=$aYScale->Translate($aYScale->GetMinVal()); |
---|
| 5121 | $ymax_abs=$aYScale->Translate($aYScale->GetMaxVal()); |
---|
| 5122 | $xpos_abs=$aXScale->Translate($this->scaleposition); |
---|
| 5123 | $aImg->Line($xpos_abs, $ymin_abs, $xpos_abs, $ymax_abs); |
---|
| 5124 | } |
---|
| 5125 | elseif( $this->direction == HORIZONTAL ) { |
---|
| 5126 | $xmin_abs=$aXScale->Translate($aXScale->GetMinVal()); |
---|
| 5127 | $xmax_abs=$aXScale->Translate($aXScale->GetMaxVal()); |
---|
| 5128 | $ypos_abs=$aYScale->Translate($this->scaleposition); |
---|
| 5129 | $aImg->Line($xmin_abs, $ypos_abs, $xmax_abs, $ypos_abs); |
---|
| 5130 | } |
---|
| 5131 | else |
---|
| 5132 | JpGraphError::Raise("<b>JpGraph Error:</b> Illegal direction for static line"); |
---|
| 5133 | } |
---|
| 5134 | } |
---|
| 5135 | |
---|
| 5136 | // <EOF> |
---|
| 5137 | ?> |
---|