| New file |
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| 0,0 → 1,615 |
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| <?php |
| //======================================================================= |
| // File: JPGRAPH_RGB.INC.PHP |
| // Description: Class to handle RGb color space specification and |
| // named colors |
| // Created: 2001-01-08 (Refactored to separate file 2008-08-01) |
| // Ver: $Id: jpgraph_rgb.inc.php 1893 2009-10-02 23:15:25Z ljp $ |
| // |
| // Copyright (c) Aditus Consulting. All rights reserved. |
| //======================================================================== |
| |
| |
| /*=================================================== |
| // CLASS RGB |
| // Description: Color definitions as RGB triples |
| //=================================================== |
| */ |
| |
| class RGB { |
| public $rgb_table; |
| public $img; |
| |
| function __construct($aImg=null) { |
| $this->img = $aImg; |
| |
| // Conversion array between color names and RGB |
| $this->rgb_table = array( |
| 'aqua'=> array(0,255,255), |
| 'lime'=> array(0,255,0), |
| 'teal'=> array(0,128,128), |
| 'whitesmoke'=>array(245,245,245), |
| 'gainsboro'=>array(220,220,220), |
| 'oldlace'=>array(253,245,230), |
| 'linen'=>array(250,240,230), |
| 'antiquewhite'=>array(250,235,215), |
| 'papayawhip'=>array(255,239,213), |
| 'blanchedalmond'=>array(255,235,205), |
| 'bisque'=>array(255,228,196), |
| 'peachpuff'=>array(255,218,185), |
| 'navajowhite'=>array(255,222,173), |
| 'moccasin'=>array(255,228,181), |
| 'cornsilk'=>array(255,248,220), |
| 'ivory'=>array(255,255,240), |
| 'lemonchiffon'=>array(255,250,205), |
| 'seashell'=>array(255,245,238), |
| 'mintcream'=>array(245,255,250), |
| 'azure'=>array(240,255,255), |
| 'aliceblue'=>array(240,248,255), |
| 'lavender'=>array(230,230,250), |
| 'lavenderblush'=>array(255,240,245), |
| 'mistyrose'=>array(255,228,225), |
| 'white'=>array(255,255,255), |
| 'black'=>array(0,0,0), |
| 'darkslategray'=>array(47,79,79), |
| 'dimgray'=>array(105,105,105), |
| 'slategray'=>array(112,128,144), |
| 'lightslategray'=>array(119,136,153), |
| 'gray'=>array(190,190,190), |
| 'lightgray'=>array(211,211,211), |
| 'midnightblue'=>array(25,25,112), |
| 'navy'=>array(0,0,128), |
| 'indigo'=>array(75,0,130), |
| 'electricindigo'=>array(102,0,255), |
| 'deepindigo'=>array(138,43,226), |
| 'pigmentindigo'=>array(75,0,130), |
| 'indigodye'=>array(0,65,106), |
| 'cornflowerblue'=>array(100,149,237), |
| 'darkslateblue'=>array(72,61,139), |
| 'slateblue'=>array(106,90,205), |
| 'mediumslateblue'=>array(123,104,238), |
| 'lightslateblue'=>array(132,112,255), |
| 'mediumblue'=>array(0,0,205), |
| 'royalblue'=>array(65,105,225), |
| 'blue'=>array(0,0,255), |
| 'dodgerblue'=>array(30,144,255), |
| 'deepskyblue'=>array(0,191,255), |
| 'skyblue'=>array(135,206,235), |
| 'lightskyblue'=>array(135,206,250), |
| 'steelblue'=>array(70,130,180), |
| 'lightred'=>array(211,167,168), |
| 'lightsteelblue'=>array(176,196,222), |
| 'lightblue'=>array(173,216,230), |
| 'powderblue'=>array(176,224,230), |
| 'paleturquoise'=>array(175,238,238), |
| 'darkturquoise'=>array(0,206,209), |
| 'mediumturquoise'=>array(72,209,204), |
| 'turquoise'=>array(64,224,208), |
| 'cyan'=>array(0,255,255), |
| 'lightcyan'=>array(224,255,255), |
| 'cadetblue'=>array(95,158,160), |
| 'mediumaquamarine'=>array(102,205,170), |
| 'aquamarine'=>array(127,255,212), |
| 'darkgreen'=>array(0,100,0), |
| 'darkolivegreen'=>array(85,107,47), |
| 'darkseagreen'=>array(143,188,143), |
| 'seagreen'=>array(46,139,87), |
| 'mediumseagreen'=>array(60,179,113), |
| 'lightseagreen'=>array(32,178,170), |
| 'palegreen'=>array(152,251,152), |
| 'springgreen'=>array(0,255,127), |
| 'lawngreen'=>array(124,252,0), |
| 'green'=>array(0,255,0), |
| 'chartreuse'=>array(127,255,0), |
| 'mediumspringgreen'=>array(0,250,154), |
| 'greenyellow'=>array(173,255,47), |
| 'limegreen'=>array(50,205,50), |
| 'yellowgreen'=>array(154,205,50), |
| 'forestgreen'=>array(34,139,34), |
| 'olivedrab'=>array(107,142,35), |
| 'darkkhaki'=>array(189,183,107), |
| 'khaki'=>array(240,230,140), |
| 'palegoldenrod'=>array(238,232,170), |
| 'lightgoldenrodyellow'=>array(250,250,210), |
| 'lightyellow'=>array(255,255,200), |
| 'yellow'=>array(255,255,0), |
| 'gold'=>array(255,215,0), |
| 'lightgoldenrod'=>array(238,221,130), |
| 'goldenrod'=>array(218,165,32), |
| 'darkgoldenrod'=>array(184,134,11), |
| 'rosybrown'=>array(188,143,143), |
| 'indianred'=>array(205,92,92), |
| 'saddlebrown'=>array(139,69,19), |
| 'sienna'=>array(160,82,45), |
| 'peru'=>array(205,133,63), |
| 'burlywood'=>array(222,184,135), |
| 'beige'=>array(245,245,220), |
| 'wheat'=>array(245,222,179), |
| 'sandybrown'=>array(244,164,96), |
| 'tan'=>array(210,180,140), |
| 'chocolate'=>array(210,105,30), |
| 'firebrick'=>array(178,34,34), |
| 'brown'=>array(165,42,42), |
| 'darksalmon'=>array(233,150,122), |
| 'salmon'=>array(250,128,114), |
| 'lightsalmon'=>array(255,160,122), |
| 'orange'=>array(255,165,0), |
| 'darkorange'=>array(255,140,0), |
| 'coral'=>array(255,127,80), |
| 'lightcoral'=>array(240,128,128), |
| 'tomato'=>array(255,99,71), |
| 'orangered'=>array(255,69,0), |
| 'red'=>array(255,0,0), |
| 'hotpink'=>array(255,105,180), |
| 'deeppink'=>array(255,20,147), |
| 'pink'=>array(255,192,203), |
| 'lightpink'=>array(255,182,193), |
| 'palevioletred'=>array(219,112,147), |
| 'maroon'=>array(176,48,96), |
| 'mediumvioletred'=>array(199,21,133), |
| 'violetred'=>array(208,32,144), |
| 'magenta'=>array(255,0,255), |
| 'violet'=>array(238,130,238), |
| 'plum'=>array(221,160,221), |
| 'orchid'=>array(218,112,214), |
| 'mediumorchid'=>array(186,85,211), |
| 'darkorchid'=>array(153,50,204), |
| 'darkviolet'=>array(148,0,211), |
| 'blueviolet'=>array(138,43,226), |
| 'purple'=>array(160,32,240), |
| 'mediumpurple'=>array(147,112,219), |
| 'thistle'=>array(216,191,216), |
| 'snow1'=>array(255,250,250), |
| 'snow2'=>array(238,233,233), |
| 'snow3'=>array(205,201,201), |
| 'snow4'=>array(139,137,137), |
| 'seashell1'=>array(255,245,238), |
| 'seashell2'=>array(238,229,222), |
| 'seashell3'=>array(205,197,191), |
| 'seashell4'=>array(139,134,130), |
| 'AntiqueWhite1'=>array(255,239,219), |
| 'AntiqueWhite2'=>array(238,223,204), |
| 'AntiqueWhite3'=>array(205,192,176), |
| 'AntiqueWhite4'=>array(139,131,120), |
| 'bisque1'=>array(255,228,196), |
| 'bisque2'=>array(238,213,183), |
| 'bisque3'=>array(205,183,158), |
| 'bisque4'=>array(139,125,107), |
| 'peachPuff1'=>array(255,218,185), |
| 'peachpuff2'=>array(238,203,173), |
| 'peachpuff3'=>array(205,175,149), |
| 'peachpuff4'=>array(139,119,101), |
| 'navajowhite1'=>array(255,222,173), |
| 'navajowhite2'=>array(238,207,161), |
| 'navajowhite3'=>array(205,179,139), |
| 'navajowhite4'=>array(139,121,94), |
| 'lemonchiffon1'=>array(255,250,205), |
| 'lemonchiffon2'=>array(238,233,191), |
| 'lemonchiffon3'=>array(205,201,165), |
| 'lemonchiffon4'=>array(139,137,112), |
| 'ivory1'=>array(255,255,240), |
| 'ivory2'=>array(238,238,224), |
| 'ivory3'=>array(205,205,193), |
| 'ivory4'=>array(139,139,131), |
| 'honeydew'=>array(193,205,193), |
| 'lavenderblush1'=>array(255,240,245), |
| 'lavenderblush2'=>array(238,224,229), |
| 'lavenderblush3'=>array(205,193,197), |
| 'lavenderblush4'=>array(139,131,134), |
| 'mistyrose1'=>array(255,228,225), |
| 'mistyrose2'=>array(238,213,210), |
| 'mistyrose3'=>array(205,183,181), |
| 'mistyrose4'=>array(139,125,123), |
| 'azure1'=>array(240,255,255), |
| 'azure2'=>array(224,238,238), |
| 'azure3'=>array(193,205,205), |
| 'azure4'=>array(131,139,139), |
| 'slateblue1'=>array(131,111,255), |
| 'slateblue2'=>array(122,103,238), |
| 'slateblue3'=>array(105,89,205), |
| 'slateblue4'=>array(71,60,139), |
| 'royalblue1'=>array(72,118,255), |
| 'royalblue2'=>array(67,110,238), |
| 'royalblue3'=>array(58,95,205), |
| 'royalblue4'=>array(39,64,139), |
| 'dodgerblue1'=>array(30,144,255), |
| 'dodgerblue2'=>array(28,134,238), |
| 'dodgerblue3'=>array(24,116,205), |
| 'dodgerblue4'=>array(16,78,139), |
| 'steelblue1'=>array(99,184,255), |
| 'steelblue2'=>array(92,172,238), |
| 'steelblue3'=>array(79,148,205), |
| 'steelblue4'=>array(54,100,139), |
| 'deepskyblue1'=>array(0,191,255), |
| 'deepskyblue2'=>array(0,178,238), |
| 'deepskyblue3'=>array(0,154,205), |
| 'deepskyblue4'=>array(0,104,139), |
| 'skyblue1'=>array(135,206,255), |
| 'skyblue2'=>array(126,192,238), |
| 'skyblue3'=>array(108,166,205), |
| 'skyblue4'=>array(74,112,139), |
| 'lightskyblue1'=>array(176,226,255), |
| 'lightskyblue2'=>array(164,211,238), |
| 'lightskyblue3'=>array(141,182,205), |
| 'lightskyblue4'=>array(96,123,139), |
| 'slategray1'=>array(198,226,255), |
| 'slategray2'=>array(185,211,238), |
| 'slategray3'=>array(159,182,205), |
| 'slategray4'=>array(108,123,139), |
| 'lightsteelblue1'=>array(202,225,255), |
| 'lightsteelblue2'=>array(188,210,238), |
| 'lightsteelblue3'=>array(162,181,205), |
| 'lightsteelblue4'=>array(110,123,139), |
| 'lightblue1'=>array(191,239,255), |
| 'lightblue2'=>array(178,223,238), |
| 'lightblue3'=>array(154,192,205), |
| 'lightblue4'=>array(104,131,139), |
| 'lightcyan1'=>array(224,255,255), |
| 'lightcyan2'=>array(209,238,238), |
| 'lightcyan3'=>array(180,205,205), |
| 'lightcyan4'=>array(122,139,139), |
| 'paleturquoise1'=>array(187,255,255), |
| 'paleturquoise2'=>array(174,238,238), |
| 'paleturquoise3'=>array(150,205,205), |
| 'paleturquoise4'=>array(102,139,139), |
| 'cadetblue1'=>array(152,245,255), |
| 'cadetblue2'=>array(142,229,238), |
| 'cadetblue3'=>array(122,197,205), |
| 'cadetblue4'=>array(83,134,139), |
| 'turquoise1'=>array(0,245,255), |
| 'turquoise2'=>array(0,229,238), |
| 'turquoise3'=>array(0,197,205), |
| 'turquoise4'=>array(0,134,139), |
| 'cyan1'=>array(0,255,255), |
| 'cyan2'=>array(0,238,238), |
| 'cyan3'=>array(0,205,205), |
| 'cyan4'=>array(0,139,139), |
| 'darkslategray1'=>array(151,255,255), |
| 'darkslategray2'=>array(141,238,238), |
| 'darkslategray3'=>array(121,205,205), |
| 'darkslategray4'=>array(82,139,139), |
| 'aquamarine1'=>array(127,255,212), |
| 'aquamarine2'=>array(118,238,198), |
| 'aquamarine3'=>array(102,205,170), |
| 'aquamarine4'=>array(69,139,116), |
| 'darkseagreen1'=>array(193,255,193), |
| 'darkseagreen2'=>array(180,238,180), |
| 'darkseagreen3'=>array(155,205,155), |
| 'darkseagreen4'=>array(105,139,105), |
| 'seagreen1'=>array(84,255,159), |
| 'seagreen2'=>array(78,238,148), |
| 'seagreen3'=>array(67,205,128), |
| 'seagreen4'=>array(46,139,87), |
| 'palegreen1'=>array(154,255,154), |
| 'palegreen2'=>array(144,238,144), |
| 'palegreen3'=>array(124,205,124), |
| 'palegreen4'=>array(84,139,84), |
| 'springgreen1'=>array(0,255,127), |
| 'springgreen2'=>array(0,238,118), |
| 'springgreen3'=>array(0,205,102), |
| 'springgreen4'=>array(0,139,69), |
| 'chartreuse1'=>array(127,255,0), |
| 'chartreuse2'=>array(118,238,0), |
| 'chartreuse3'=>array(102,205,0), |
| 'chartreuse4'=>array(69,139,0), |
| 'olivedrab1'=>array(192,255,62), |
| 'olivedrab2'=>array(179,238,58), |
| 'olivedrab3'=>array(154,205,50), |
| 'olivedrab4'=>array(105,139,34), |
| 'darkolivegreen1'=>array(202,255,112), |
| 'darkolivegreen2'=>array(188,238,104), |
| 'darkolivegreen3'=>array(162,205,90), |
| 'darkolivegreen4'=>array(110,139,61), |
| 'khaki1'=>array(255,246,143), |
| 'khaki2'=>array(238,230,133), |
| 'khaki3'=>array(205,198,115), |
| 'khaki4'=>array(139,134,78), |
| 'lightgoldenrod1'=>array(255,236,139), |
| 'lightgoldenrod2'=>array(238,220,130), |
| 'lightgoldenrod3'=>array(205,190,112), |
| 'lightgoldenrod4'=>array(139,129,76), |
| 'yellow1'=>array(255,255,0), |
| 'yellow2'=>array(238,238,0), |
| 'yellow3'=>array(205,205,0), |
| 'yellow4'=>array(139,139,0), |
| 'gold1'=>array(255,215,0), |
| 'gold2'=>array(238,201,0), |
| 'gold3'=>array(205,173,0), |
| 'gold4'=>array(139,117,0), |
| 'goldenrod1'=>array(255,193,37), |
| 'goldenrod2'=>array(238,180,34), |
| 'goldenrod3'=>array(205,155,29), |
| 'goldenrod4'=>array(139,105,20), |
| 'darkgoldenrod1'=>array(255,185,15), |
| 'darkgoldenrod2'=>array(238,173,14), |
| 'darkgoldenrod3'=>array(205,149,12), |
| 'darkgoldenrod4'=>array(139,101,8), |
| 'rosybrown1'=>array(255,193,193), |
| 'rosybrown2'=>array(238,180,180), |
| 'rosybrown3'=>array(205,155,155), |
| 'rosybrown4'=>array(139,105,105), |
| 'indianred1'=>array(255,106,106), |
| 'indianred2'=>array(238,99,99), |
| 'indianred3'=>array(205,85,85), |
| 'indianred4'=>array(139,58,58), |
| 'sienna1'=>array(255,130,71), |
| 'sienna2'=>array(238,121,66), |
| 'sienna3'=>array(205,104,57), |
| 'sienna4'=>array(139,71,38), |
| 'burlywood1'=>array(255,211,155), |
| 'burlywood2'=>array(238,197,145), |
| 'burlywood3'=>array(205,170,125), |
| 'burlywood4'=>array(139,115,85), |
| 'wheat1'=>array(255,231,186), |
| 'wheat2'=>array(238,216,174), |
| 'wheat3'=>array(205,186,150), |
| 'wheat4'=>array(139,126,102), |
| 'tan1'=>array(255,165,79), |
| 'tan2'=>array(238,154,73), |
| 'tan3'=>array(205,133,63), |
| 'tan4'=>array(139,90,43), |
| 'chocolate1'=>array(255,127,36), |
| 'chocolate2'=>array(238,118,33), |
| 'chocolate3'=>array(205,102,29), |
| 'chocolate4'=>array(139,69,19), |
| 'firebrick1'=>array(255,48,48), |
| 'firebrick2'=>array(238,44,44), |
| 'firebrick3'=>array(205,38,38), |
| 'firebrick4'=>array(139,26,26), |
| 'brown1'=>array(255,64,64), |
| 'brown2'=>array(238,59,59), |
| 'brown3'=>array(205,51,51), |
| 'brown4'=>array(139,35,35), |
| 'salmon1'=>array(255,140,105), |
| 'salmon2'=>array(238,130,98), |
| 'salmon3'=>array(205,112,84), |
| 'salmon4'=>array(139,76,57), |
| 'lightsalmon1'=>array(255,160,122), |
| 'lightsalmon2'=>array(238,149,114), |
| 'lightsalmon3'=>array(205,129,98), |
| 'lightsalmon4'=>array(139,87,66), |
| 'orange1'=>array(255,165,0), |
| 'orange2'=>array(238,154,0), |
| 'orange3'=>array(205,133,0), |
| 'orange4'=>array(139,90,0), |
| 'darkorange1'=>array(255,127,0), |
| 'darkorange2'=>array(238,118,0), |
| 'darkorange3'=>array(205,102,0), |
| 'darkorange4'=>array(139,69,0), |
| 'coral1'=>array(255,114,86), |
| 'coral2'=>array(238,106,80), |
| 'coral3'=>array(205,91,69), |
| 'coral4'=>array(139,62,47), |
| 'tomato1'=>array(255,99,71), |
| 'tomato2'=>array(238,92,66), |
| 'tomato3'=>array(205,79,57), |
| 'tomato4'=>array(139,54,38), |
| 'orangered1'=>array(255,69,0), |
| 'orangered2'=>array(238,64,0), |
| 'orangered3'=>array(205,55,0), |
| 'orangered4'=>array(139,37,0), |
| 'deeppink1'=>array(255,20,147), |
| 'deeppink2'=>array(238,18,137), |
| 'deeppink3'=>array(205,16,118), |
| 'deeppink4'=>array(139,10,80), |
| 'hotpink1'=>array(255,110,180), |
| 'hotpink2'=>array(238,106,167), |
| 'hotpink3'=>array(205,96,144), |
| 'hotpink4'=>array(139,58,98), |
| 'pink1'=>array(255,181,197), |
| 'pink2'=>array(238,169,184), |
| 'pink3'=>array(205,145,158), |
| 'pink4'=>array(139,99,108), |
| 'lightpink1'=>array(255,174,185), |
| 'lightpink2'=>array(238,162,173), |
| 'lightpink3'=>array(205,140,149), |
| 'lightpink4'=>array(139,95,101), |
| 'palevioletred1'=>array(255,130,171), |
| 'palevioletred2'=>array(238,121,159), |
| 'palevioletred3'=>array(205,104,137), |
| 'palevioletred4'=>array(139,71,93), |
| 'maroon1'=>array(255,52,179), |
| 'maroon2'=>array(238,48,167), |
| 'maroon3'=>array(205,41,144), |
| 'maroon4'=>array(139,28,98), |
| 'violetred1'=>array(255,62,150), |
| 'violetred2'=>array(238,58,140), |
| 'violetred3'=>array(205,50,120), |
| 'violetred4'=>array(139,34,82), |
| 'magenta1'=>array(255,0,255), |
| 'magenta2'=>array(238,0,238), |
| 'magenta3'=>array(205,0,205), |
| 'magenta4'=>array(139,0,139), |
| 'mediumred'=>array(140,34,34), |
| 'orchid1'=>array(255,131,250), |
| 'orchid2'=>array(238,122,233), |
| 'orchid3'=>array(205,105,201), |
| 'orchid4'=>array(139,71,137), |
| 'plum1'=>array(255,187,255), |
| 'plum2'=>array(238,174,238), |
| 'plum3'=>array(205,150,205), |
| 'plum4'=>array(139,102,139), |
| 'mediumorchid1'=>array(224,102,255), |
| 'mediumorchid2'=>array(209,95,238), |
| 'mediumorchid3'=>array(180,82,205), |
| 'mediumorchid4'=>array(122,55,139), |
| 'darkorchid1'=>array(191,62,255), |
| 'darkorchid2'=>array(178,58,238), |
| 'darkorchid3'=>array(154,50,205), |
| 'darkorchid4'=>array(104,34,139), |
| 'purple1'=>array(155,48,255), |
| 'purple2'=>array(145,44,238), |
| 'purple3'=>array(125,38,205), |
| 'purple4'=>array(85,26,139), |
| 'mediumpurple1'=>array(171,130,255), |
| 'mediumpurple2'=>array(159,121,238), |
| 'mediumpurple3'=>array(137,104,205), |
| 'mediumpurple4'=>array(93,71,139), |
| 'thistle1'=>array(255,225,255), |
| 'thistle2'=>array(238,210,238), |
| 'thistle3'=>array(205,181,205), |
| 'thistle4'=>array(139,123,139), |
| 'gray1'=>array(10,10,10), |
| 'gray2'=>array(40,40,30), |
| 'gray3'=>array(70,70,70), |
| 'gray4'=>array(100,100,100), |
| 'gray5'=>array(130,130,130), |
| 'gray6'=>array(160,160,160), |
| 'gray7'=>array(190,190,190), |
| 'gray8'=>array(210,210,210), |
| 'gray9'=>array(240,240,240), |
| 'darkgray'=>array(100,100,100), |
| 'darkblue'=>array(0,0,139), |
| 'darkcyan'=>array(0,139,139), |
| 'darkmagenta'=>array(139,0,139), |
| 'darkred'=>array(139,0,0), |
| 'silver'=>array(192, 192, 192), |
| 'eggplant'=>array(144,176,168), |
| 'lightgreen'=>array(144,238,144)); |
| } |
| |
| |
| //---------------- |
| // PUBLIC METHODS |
| // Colors can be specified as either |
| // 1. #xxxxxx HTML style |
| // 2. "colorname" as a named color |
| // 3. array(r,g,b) RGB triple |
| // This function translates this to a native RGB format and returns an |
| // RGB triple. |
| |
| function Color($aColor) { |
| if (is_string($aColor)) { |
| $matches = array(); |
| // this regex will parse a color string and fill the $matches array as such: |
| // 0: the full match if any |
| // 1: a hex string preceded by a hash, can be 3 characters (#fff) or 6 (#ffffff) (4 or 5 also accepted but...) |
| // 2,3,4: r,g,b values in hex if the first character of the string is # |
| // 5: all alpha-numeric characters at the beginning of the string if string does not start with # |
| // 6: alpha value prefixed by @ if supplied |
| // 7: alpha value with @ stripped |
| // 8: adjust value prefixed with : if supplied |
| // 9: adjust value with : stripped |
| $regex = '/(#([0-9a-fA-F]{1,2})([0-9a-fA-F]{1,2})([0-9a-fA-F]{1,2}))?([\w]+)?(@([\d\.,]+))?(:([\d\.,]+))?/'; |
| if(!preg_match($regex, $aColor, $matches)) { |
| JpGraphError::RaiseL(25078,$aColor);//(" Unknown color: $aColor"); |
| } |
| if(empty($matches[5])) { |
| $r = strlen($matches[2]) == 1 ? $matches[2].$matches[2] : $matches[2]; |
| $g = strlen($matches[3]) == 1 ? $matches[3].$matches[3] : $matches[3]; |
| $b = strlen($matches[4]) == 1 ? $matches[4].$matches[4] : $matches[4]; |
| $r = hexdec($r); |
| $g = hexdec($g); |
| $b = hexdec($b); |
| }else { |
| if(!isset($this->rgb_table[$matches[5]]) ) { |
| JpGraphError::RaiseL(25078,$aColor);//(" Unknown color: $aColor"); |
| } |
| $r = $this->rgb_table[$matches[5]][0]; |
| $g = $this->rgb_table[$matches[5]][1]; |
| $b = $this->rgb_table[$matches[5]][2]; |
| } |
| $alpha = isset($matches[7]) ? str_replace(',','.',$matches[7]) : 0; |
| $adj = isset($matches[9]) ? str_replace(',','.',$matches[9]) : 1.0; |
| |
| if( $adj < 0 ) { |
| JpGraphError::RaiseL(25077);//('Adjustment factor for color must be > 0'); |
| } |
| |
| // Scale adj so that an adj=2 always |
| // makes the color 100% white (i.e. 255,255,255. |
| // and adj=1 neutral and adj=0 black. |
| if( $adj == 1) { |
| return array($r,$g,$b,$alpha); |
| } |
| elseif( $adj > 1 ) { |
| $m = ($adj-1.0)*(255-min(255,min($r,min($g,$b)))); |
| return array(min(255,$r+$m), min(255,$g+$m), min(255,$b+$m),$alpha); |
| } |
| elseif( $adj < 1 ) { |
| $m = ($adj-1.0)*max(255,max($r,max($g,$b))); |
| return array(max(0,$r+$m), max(0,$g+$m), max(0,$b+$m),$alpha); |
| } |
| } elseif( is_array($aColor) ) { |
| if(!isset($aColor[3])) $aColor[3] = 0; |
| return $aColor; |
| } |
| else { |
| JpGraphError::RaiseL(25079,$aColor,count($aColor));//(" Unknown color specification: $aColor , size=".count($aColor)); |
| } |
| } |
| |
| // Compare two colors |
| // return true if equal |
| function Equal($aCol1,$aCol2) { |
| $c1 = $this->Color($aCol1); |
| $c2 = $this->Color($aCol2); |
| return $c1[0]==$c2[0] && $c1[1]==$c2[1] && $c1[2]==$c2[2] ; |
| } |
| |
| // Allocate a new color in the current image |
| // Return new color index, -1 if no more colors could be allocated |
| function Allocate($aColor,$aAlpha=0.0) { |
| list ($r, $g, $b, $a) = $this->color($aColor); |
| // If alpha is specified in the color string then this |
| // takes precedence over the second argument |
| if( $a > 0 ) { |
| $aAlpha = $a; |
| } |
| if( $aAlpha < 0 || $aAlpha > 1 ) { |
| JpGraphError::RaiseL(25080);//('Alpha parameter for color must be between 0.0 and 1.0'); |
| } |
| return imagecolorresolvealpha($this->img, $r, $g, $b, round($aAlpha * 127)); |
| } |
| |
| // Try to convert an array with three valid numbers to the corresponding hex array |
| // This is currenly only used in processing the colors for barplots in order to be able |
| // to handle the case where the color might be specified as an array of colros as well. |
| // In that case we must be able to find out if an array of values should be interpretated as |
| // a single color (specifeid as an RGB triple) |
| static function tryHexConversion($aColor) { |
| if( is_array( $aColor ) ) { |
| if( count( $aColor ) == 3 ) { |
| if( is_numeric($aColor[0]) && is_numeric($aColor[1]) && is_numeric($aColor[2]) ) { |
| if( ($aColor[0] >= 0 && $aColor[0] <= 255) && |
| ($aColor[1] >= 0 && $aColor[1] <= 255) && |
| ($aColor[2] >= 0 && $aColor[2] <= 255) ) { |
| return sprintf('#%02x%02x%02x',$aColor[0],$aColor[1],$aColor[2]); |
| } |
| } |
| } |
| } |
| return $aColor; |
| } |
| |
| // Return a RGB tripple corresponding to a position in the normal light spectrum |
| // The argumen values is in the range [0, 1] where a value of 0 correponds to blue and |
| // a value of 1 corresponds to red. Values in betwen is mapped to a linear interpolation |
| // of the constituting colors in the visible color spectra. |
| // The $aDynamicRange specified how much of the dynamic range we shold use |
| // a value of 1.0 give the full dyanmic range and a lower value give more dark |
| // colors. In the extreme of 0.0 then all colors will be black. |
| static function GetSpectrum($aVal,$aDynamicRange=1.0) { |
| if( $aVal < 0 || $aVal > 1.0001 ) { |
| return array(0,0,0); // Invalid case - just return black |
| } |
| |
| $sat = round(255*$aDynamicRange); |
| $a = 0.25; |
| if( $aVal <= 0.25 ) { |
| return array(0, round($sat*$aVal/$a), $sat); |
| } |
| elseif( $aVal <= 0.5 ) { |
| return array(0, $sat, round($sat-$sat*($aVal-0.25)/$a)); |
| } |
| elseif( $aVal <= 0.75 ) { |
| return array(round($sat*($aVal-0.5)/$a), $sat, 0); |
| } |
| else { |
| return array($sat, round($sat-$sat*($aVal-0.75)/$a), 0); |
| } |
| } |
| |
| } // Class |
| |
| ?> |