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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 equalfunction 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 allocatedfunction 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 argumentif( $a > 0 ) {$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?>