| 1 | <?php |
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| 2 | /*======================================================================= |
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| 3 | // File: JPGRAPH_PIE.PHP |
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| 4 | // Description: Pie plot extension for JpGraph |
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| 5 | // Created: 2001-02-14 |
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| 6 | // Author: Johan Persson (johanp@aditus.nu) |
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| 7 | // Ver: $Id: jpgraph_pie.php 18250 2005-05-07 14:13:43Z ralfbecker $ |
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| 8 | // |
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| 9 | // License: This code is released under GPL 2.0 |
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| 10 | // Copyright (C) 2001 Johan Persson |
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| 11 | //======================================================================== |
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| 12 | */ |
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| 13 | |
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| 14 | //=================================================== |
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| 15 | // CLASS PiePlot |
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| 16 | // Description: |
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| 17 | //=================================================== |
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| 18 | class PiePlot { |
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| 19 | var $posx=0.5,$posy=0.5; |
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| 20 | var $radius=0.3; |
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| 21 | var $explode_radius=array(),$explode_all=false,$explode_r=20; |
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| 22 | var $labels, $legends=null; |
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| 23 | var $csimtargets=null; // Array of targets for CSIM |
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| 24 | var $csimareas=''; // Generated CSIM text |
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| 25 | var $csimalts=null; // ALT tags for corresponding target |
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| 26 | var $data=null; |
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| 27 | var $title; |
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| 28 | var $startangle=0; |
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| 29 | var $weight=1, $color="black"; |
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| 30 | var $font_family=FF_FONT1,$font_style=FS_NORMAL,$font_size=12,$font_color="black"; |
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| 31 | var $legend_margin=6,$show_labels=true; |
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| 32 | var $precision=1,$show_psign=true; |
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| 33 | var $themearr=array( |
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| 34 | "earth" => array(10,34,40,45,46,62,63,134,74,77,120,136,141,168,180,209,218,346,395,89,430), |
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| 35 | "pastel" => array(27,38,42,58,66,79,105,110,128,147,152,230,236,240,331,337,405,415), |
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| 36 | "water" => array(8,370,10,40,335,56,213,237,268,14,326,387,24,388), |
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| 37 | "sand" => array(27,168,34,170,19,50,65,72,131,209,46,393)); |
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| 38 | var $theme="earth"; |
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| 39 | var $setslicecolors=array(); |
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| 40 | var $labelformat="%01.0f"; // Default format for labels |
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| 41 | var $labeltype=0; // Default to percentage |
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| 42 | var $pie_border=true,$pie_interior_border=true; |
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| 43 | |
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| 44 | //--------------- |
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| 45 | // CONSTRUCTOR |
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| 46 | function PiePlot(&$data) { |
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| 47 | $this->data = $data; |
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| 48 | $this->title = new Text(""); |
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| 49 | $this->title->SetFont(FF_FONT1,FS_BOLD); |
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| 50 | } |
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| 51 | |
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| 52 | //--------------- |
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| 53 | // PUBLIC METHODS |
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| 54 | function SetCenter($x,$y=0.5) { |
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| 55 | $this->posx = $x; |
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| 56 | $this->posy = $y; |
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| 57 | } |
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| 58 | |
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| 59 | function SetCSIMTargets(&$targets,$alts=null) { |
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| 60 | $this->csimtargets=$targets; |
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| 61 | $this->csimalts=$alts; |
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| 62 | } |
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| 63 | |
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| 64 | function GetCSIMareas() { |
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| 65 | return $this->csimareas; |
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| 66 | } |
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| 67 | |
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| 68 | function AddSliceToCSIM($i,$xc,$yc,$radius,$sa,$ea) { //Slice number, ellipse centre (x,y), height, width, start angle, end angle |
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| 69 | |
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| 70 | //add coordinates of the centre to the map |
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| 71 | $coords = "$xc, $yc"; |
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| 72 | |
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| 73 | //add coordinates of the first point on the arc to the map |
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| 74 | $xp = floor(($radius*cos($sa))+$xc); |
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| 75 | $yp = floor($yc-$radius*sin($sa)); |
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| 76 | $coords.= ", $xp, $yp"; |
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| 77 | |
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| 78 | //add coordinates every 0.2 radians |
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| 79 | $a=$sa+0.2; |
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| 80 | while ($a<$ea) { |
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| 81 | $xp = floor($radius*cos($a)+$xc); |
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| 82 | $yp = floor($yc-$radius*sin($a)); |
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| 83 | $coords.= ", $xp, $yp"; |
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| 84 | $a += 0.2; |
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| 85 | } |
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| 86 | |
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| 87 | //Add the last point on the arc |
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| 88 | $xp = floor($radius*cos($ea)+$xc); |
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| 89 | $yp = floor($yc-$radius*sin($ea)); |
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| 90 | $coords.= ", $xp, $yp"; |
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| 91 | if( !empty($this->csimtargets[$i]) ) |
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| 92 | $this->csimareas .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->csimtargets[$i]."\""; |
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| 93 | if( !empty($this->csimalts[$i]) ) { |
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| 94 | $tmp=sprintf($this->csimalts[$i],$this->data[$i]); |
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| 95 | $this->csimareas .= " alt=\"$tmp\""; |
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| 96 | } |
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| 97 | $this->csimareas .= ">\r\n"; |
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| 98 | } |
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| 99 | |
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| 100 | |
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| 101 | function SetTheme($t) { |
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| 102 | if( in_array($t,array_keys($this->themearr)) ) |
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| 103 | $this->theme = $t; |
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| 104 | else |
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| 105 | JpGraphError::Raise("JpGraph Error: Unknown theme: $t"); |
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| 106 | } |
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| 107 | |
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| 108 | function ExplodeSlice($e) { |
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| 109 | $this->explode_radius[$e]=20; |
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| 110 | } |
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| 111 | |
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| 112 | function ExplodeAll($radius=-1) { |
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| 113 | $this->explode_all=true; |
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| 114 | if( $radius==-1 ) |
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| 115 | $this->explode_r = 20; |
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| 116 | else |
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| 117 | $this->explode_r = $radius; |
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| 118 | } |
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| 119 | |
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| 120 | function Explode($radarr) { |
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| 121 | $this->explode_radius = $radarr; |
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| 122 | } |
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| 123 | |
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| 124 | function SetSliceColors($c) { |
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| 125 | $this->setslicecolors = $c; |
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| 126 | } |
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| 127 | |
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| 128 | function SetStartAngle($a) { |
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| 129 | assert($a>=0 && $a<2*M_PI); |
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| 130 | $this->startangle = $a; |
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| 131 | } |
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| 132 | |
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| 133 | function SetFont($family,$style=FS_NORMAL,$size=10) { |
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| 134 | $this->font_family=$family; |
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| 135 | $this->font_style=$style; |
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| 136 | $this->font_size=$size; |
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| 137 | } |
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| 138 | |
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| 139 | // Size in percentage |
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| 140 | function SetSize($size) { |
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| 141 | if( ($size>0 && $size<=0.5) || ($size>10 && $size<1000) ) |
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| 142 | $this->radius = $size; |
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| 143 | else |
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| 144 | JpGraphError::Raise("JpGraph Error: Size (radius) for pie must either be specified as a fraction |
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| 145 | [0, 0.5] of the size of the image or as an absolute size in pixels |
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| 146 | in the range [10, 1000]"); |
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| 147 | } |
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| 148 | |
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| 149 | function SetFontColor($color) { |
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| 150 | $this->font_color = $color; |
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| 151 | } |
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| 152 | |
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| 153 | // Set label arrays |
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| 154 | function SetLegends($l) { |
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| 155 | $this->legends = $l; |
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| 156 | } |
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| 157 | |
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| 158 | // Should the values be displayed? |
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| 159 | function HideLabels($f=true) { |
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| 160 | $this->show_labels = !$f; |
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| 161 | } |
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| 162 | |
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| 163 | // Specify label format as a "C" printf string |
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| 164 | function SetLabelFormat($f) { |
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| 165 | $this->labelformat=$f; |
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| 166 | // If format is specified don't add any %-sign |
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| 167 | $this->show_psign=0; |
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| 168 | } |
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| 169 | |
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| 170 | // Should we display actual value or percentage? |
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| 171 | function SetLabelType($t) { |
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| 172 | if( $t<0 || $t>1 ) |
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| 173 | JpGraphError::Raise("JpGraph Error: Label type for pie plots must be 0 or 1 (not $t)."); |
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| 174 | $this->labeltype=$t; |
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| 175 | // Don't show percentage value when displaying absolute values |
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| 176 | if( $t==1 ) |
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| 177 | $this->show_psign=0; |
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| 178 | } |
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| 179 | |
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| 180 | // Should the circle around a pie plot be displayed |
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| 181 | function ShowBorder($exterior=true,$interior=true) { |
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| 182 | $this->pie_border = $exterior; |
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| 183 | $this->pie_interior_border = $interior; |
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| 184 | } |
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| 185 | |
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| 186 | // Setup the legends |
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| 187 | function Legend(&$graph) { |
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| 188 | $colors = array_keys($graph->img->rgb->rgb_table); |
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| 189 | sort($colors); |
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| 190 | $ta=$this->themearr[$this->theme]; |
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| 191 | |
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| 192 | if( $this->setslicecolors==null ) |
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| 193 | $numcolors=count($ta); |
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| 194 | else |
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| 195 | $numcolors=count($this->setslicecolors); |
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| 196 | |
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| 197 | $sum=0; |
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| 198 | for($i=0; $i<count($this->data); ++$i) |
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| 199 | $sum += $this->data[$i]; |
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| 200 | |
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| 201 | $i=0; |
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| 202 | if( count($this->legends)>0 ) { |
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| 203 | foreach( $this->legends as $l ) { |
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| 204 | |
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| 205 | // Replace possible format with actual values |
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| 206 | if( $this->labeltype==0 ) |
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| 207 | $l = sprintf($l,100*$this->data[$i]/$sum); |
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| 208 | else |
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| 209 | $l = sprintf($l,$this->data[$i]); |
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| 210 | |
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| 211 | if( $this->setslicecolors==null ) |
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| 212 | $graph->legend->Add($l,$colors[$ta[$i%$numcolors]]); |
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| 213 | else |
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| 214 | $graph->legend->Add($l,$this->setslicecolors[$i%$numcolors]); |
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| 215 | ++$i; |
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| 216 | |
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| 217 | // Breakout if there are more legends then values |
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| 218 | if( $i==count($this->data) ) return; |
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| 219 | } |
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| 220 | } |
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| 221 | } |
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| 222 | |
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| 223 | // Specify precision for labels. This is almost a deprecated function |
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| 224 | // nowadays since the introduction of SetLabelFormat() |
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| 225 | function SetPrecision($p,$psign=true) { |
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| 226 | if( $p<0 || $p>8 ) |
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| 227 | JpGraphError::Raise("JpGraph Error: Pie label Precision must be between 0 and 8"); |
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| 228 | $this->labelformat="%01.".$p."f"; |
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| 229 | $this->show_psign=$psign; |
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| 230 | } |
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| 231 | |
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| 232 | function Stroke(&$img) { |
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| 233 | |
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| 234 | $colors = array_keys($img->rgb->rgb_table); |
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| 235 | sort($colors); |
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| 236 | $ta=$this->themearr[$this->theme]; |
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| 237 | |
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| 238 | if( $this->setslicecolors==null ) |
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| 239 | $numcolors=count($ta); |
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| 240 | else |
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| 241 | $numcolors=count($this->setslicecolors); |
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| 242 | |
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| 243 | // Draw the slices |
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| 244 | $sum=0; |
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| 245 | for($i=0; $i<count($this->data); ++$i) |
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| 246 | $sum += $this->data[$i]; |
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| 247 | |
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| 248 | // Format the titles for each slice |
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| 249 | for( $i=0; $i<count($this->data); ++$i) { |
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| 250 | if( $this->labeltype==0 ) |
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| 251 | if( $sum != 0 ) |
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| 252 | $l = round(100*$this->data[$i]/$sum,$this->precision); |
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| 253 | else |
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| 254 | $l = 0; |
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| 255 | else |
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| 256 | $l = $this->data[$i]; |
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| 257 | $l = sprintf($this->labelformat,$l); |
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| 258 | if( $this->show_psign ) $l .= "%"; |
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| 259 | $this->labels[$i]=$l; |
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| 260 | } |
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| 261 | |
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| 262 | // Set up the pic-circle |
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| 263 | if( $this->radius < 1 ) |
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| 264 | $radius = floor($this->radius*min($img->width,$img->height)); |
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| 265 | else |
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| 266 | $radius = $this->radius; |
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| 267 | $xc = $this->posx*$img->width; |
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| 268 | $yc = $this->posy*$img->height; |
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| 269 | |
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| 270 | $accsum=0; |
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| 271 | $angle2 = $this->startangle; |
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| 272 | $img->SetColor($this->color); |
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| 273 | |
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| 274 | if( $this->explode_all ) |
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| 275 | for($i=0;$i<count($this->data);++$i) |
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| 276 | $this->explode_radius[$i]=$this->explode_r; |
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| 277 | |
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| 278 | for($i=0; $sum>0 && $i<count($this->data); ++$i) { |
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| 279 | $d = $this->data[$i]; |
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| 280 | $angle1 = $angle2; |
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| 281 | $accsum += $d; |
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| 282 | $angle2 = $this->startangle+2.0*M_PI*$accsum/$sum; |
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| 283 | |
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| 284 | if( $this->setslicecolors==null ) |
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| 285 | $slicecolor=$colors[$ta[$i%$numcolors]]; |
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| 286 | else |
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| 287 | $slicecolor=$this->setslicecolors[$i%$numcolors]; |
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| 288 | |
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| 289 | if( $this->pie_interior_border ) |
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| 290 | $img->SetColor($this->color); |
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| 291 | else |
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| 292 | $img->SetColor($slicecolor); |
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| 293 | |
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| 294 | $arccolor = $this->pie_border ? $this->color : $slicecolor; |
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| 295 | |
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| 296 | $la = abs($angle2-$angle1)/2.0+$angle1; |
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| 297 | if( empty($this->explode_radius[$i]) ) |
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| 298 | $this->explode_radius[$i]=0; |
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| 299 | $xcm = $xc + $this->explode_radius[$i]*cos($la); |
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| 300 | $ycm = $yc - $this->explode_radius[$i]*sin($la); |
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| 301 | |
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| 302 | $img->CakeSlice($xcm,$ycm,$radius-1,$radius-1,$angle1,$angle2, |
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| 303 | $slicecolor,$arccolor); |
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| 304 | |
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| 305 | if( $this->show_labels ) |
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| 306 | $this->StrokeLabels($this->labels[$i],$img,$xc,$yc,$la, |
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| 307 | $radius+$this->explode_radius[$i]); |
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| 308 | |
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| 309 | if ($this->csimtargets) { |
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| 310 | $this->AddSliceToCSIM($i,$xcm,$ycm,$radius,$angle1,$angle2); |
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| 311 | } |
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| 312 | |
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| 313 | } |
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| 314 | // Adjust title position |
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| 315 | $this->title->Pos($xc,$yc-$img->GetFontHeight()-$radius,"center","bottom"); |
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| 316 | $this->title->Stroke($img); |
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| 317 | |
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| 318 | } |
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| 319 | |
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| 320 | //--------------- |
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| 321 | // PRIVATE METHODS |
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| 322 | |
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| 323 | // Position the labels of each slice |
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| 324 | function StrokeLabels($label,$img,$xc,$yc,$a,$r) { |
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| 325 | $img->SetFont($this->font_family,$this->font_style,$this->font_size); |
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| 326 | $img->SetColor($this->font_color); |
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| 327 | $img->SetTextAlign("left","top"); |
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| 328 | $marg=6; |
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| 329 | $r += $img->GetFontHeight()/2; |
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| 330 | $xt=round($r*cos($a)+$xc); |
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| 331 | $yt=round($yc-$r*sin($a)); |
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| 332 | |
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| 333 | // Position the axis title. |
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| 334 | // dx, dy is the offset from the top left corner of the bounding box that sorrounds the text |
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| 335 | // that intersects with the extension of the corresponding axis. The code looks a little |
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| 336 | // bit messy but this is really the only way of having a reasonable position of the |
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| 337 | // axis titles. |
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| 338 | $h=$img->GetTextHeight($label); |
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| 339 | $w=$img->GetTextWidth($label); |
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| 340 | while( $a > 2*M_PI ) $a -= 2*M_PI; |
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| 341 | if( $a>=7*M_PI/4 || $a <= M_PI/4 ) $dx=0; |
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| 342 | if( $a>=M_PI/4 && $a <= 3*M_PI/4 ) $dx=($a-M_PI/4)*2/M_PI; |
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| 343 | if( $a>=3*M_PI/4 && $a <= 5*M_PI/4 ) $dx=1; |
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| 344 | if( $a>=5*M_PI/4 && $a <= 7*M_PI/4 ) $dx=(1-($a-M_PI*5/4)*2/M_PI); |
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| 345 | |
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| 346 | if( $a>=7*M_PI/4 ) $dy=(($a-M_PI)-3*M_PI/4)*2/M_PI; |
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| 347 | if( $a<=M_PI/4 ) $dy=(1-$a*2/M_PI); |
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| 348 | if( $a>=M_PI/4 && $a <= 3*M_PI/4 ) $dy=1; |
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| 349 | if( $a>=3*M_PI/4 && $a <= 5*M_PI/4 ) $dy=(1-($a-3*M_PI/4)*2/M_PI); |
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| 350 | if( $a>=5*M_PI/4 && $a <= 7*M_PI/4 ) $dy=0; |
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| 351 | |
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| 352 | $img->StrokeText($xt-$dx*$w,$yt-$dy*$h,$label); |
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| 353 | } |
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| 354 | } // Class |
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| 355 | |
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| 356 | |
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| 357 | |
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| 358 | //=================================================== |
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| 359 | // CLASS PieGraph |
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| 360 | // Description: |
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| 361 | //=================================================== |
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| 362 | class PieGraph extends Graph { |
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| 363 | var $posx, $posy, $radius; |
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| 364 | var $legends=array(); |
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| 365 | var $plots=array(); |
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| 366 | //--------------- |
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| 367 | // CONSTRUCTOR |
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| 368 | function PieGraph($width=300,$height=200,$cachedName="",$timeout=0,$inline=1) { |
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| 369 | $this->Graph($width,$height,$cachedName,$timeout,$inline); |
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| 370 | $this->posx=$width/2; |
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| 371 | $this->posy=$height/2; |
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| 372 | $this->SetColor(array(255,255,255)); |
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| 373 | } |
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| 374 | |
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| 375 | //--------------- |
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| 376 | // PUBLIC METHODS |
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| 377 | function Add(&$pie) { |
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| 378 | $this->plots[] = $pie; |
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| 379 | } |
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| 380 | |
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| 381 | function SetColor($c) { |
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| 382 | $this->SetMarginColor($c); |
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| 383 | } |
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| 384 | |
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| 385 | // Method description |
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| 386 | function Stroke($aStrokeFileName="") { |
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| 387 | |
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| 388 | $this->StrokeFrame(); |
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| 389 | |
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| 390 | for($i=0; $i<count($this->plots); ++$i) |
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| 391 | $this->plots[$i]->Stroke($this->img); |
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| 392 | |
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| 393 | foreach( $this->plots as $p) |
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| 394 | $p->Legend($this); |
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| 395 | |
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| 396 | $this->legend->Stroke($this->img); |
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| 397 | $this->title->Center($this->img->left_margin,$this->img->width-$this->img->right_margin,5); |
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| 398 | $this->title->Stroke($this->img); |
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| 399 | |
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| 400 | // Stroke texts |
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| 401 | if( $this->texts != null ) |
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| 402 | foreach( $this->texts as $t) |
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| 403 | $t->Stroke($this->img); |
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| 404 | |
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| 405 | |
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| 406 | if ($this->showcsim) { |
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| 407 | foreach($this->plots as $p ) { |
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| 408 | $csim.= $p->GetCSIMareas(); |
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| 409 | } |
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| 410 | //$csim.= $this->legend->GetCSIMareas(); |
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| 411 | if (preg_match_all("/area shape=\"(\w+)\" coords=\"([0-9\, ]+)\"/", $csim, $coords)) { |
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| 412 | $this->img->SetColor($this->csimcolor); |
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| 413 | for ($i=0; $i<count($coords[0]); $i++) { |
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| 414 | if ($coords[1][$i]=="poly") { |
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| 415 | preg_match_all('/\s*([0-9]+)\s*,\s*([0-9]+)\s*,*/',$coords[2][$i],$pts); |
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| 416 | $this->img->SetStartPoint($pts[1][count($pts[0])-1],$pts[2][count($pts[0])-1]); |
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| 417 | for ($j=0; $j<count($pts[0]); $j++) { |
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| 418 | $this->img->LineTo($pts[1][$j],$pts[2][$j]); |
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| 419 | } |
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| 420 | } else if ($coords[1][$i]=="rect") { |
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| 421 | $pts = preg_split('/,/', $coords[2][$i]); |
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| 422 | $this->img->SetStartPoint($pts[0],$pts[1]); |
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| 423 | $this->img->LineTo($pts[2],$pts[1]); |
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| 424 | $this->img->LineTo($pts[2],$pts[3]); |
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| 425 | $this->img->LineTo($pts[0],$pts[3]); |
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| 426 | $this->img->LineTo($pts[0],$pts[1]); |
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| 427 | |
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| 428 | } |
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| 429 | } |
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| 430 | } |
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| 431 | } |
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| 432 | |
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| 433 | // Finally output the image |
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| 434 | $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName); |
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| 435 | } |
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| 436 | } // Class |
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| 437 | |
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| 438 | /* EOF */ |
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| 439 | ?> |
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