| 1 | <?php
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| 2 | //=======================================================================
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| 3 | // File: JPGRAPH_RGB.INC.PHP
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| 4 | // Description: Class to handle RGb color space specification and
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| 5 | // named colors
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| 6 | // Created: 2001-01-08 (Refactored to separate file 2008-08-01)
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| 7 | // Ver: $Id: jpgraph_rgb.inc.php 1893 2009-10-02 23:15:25Z ljp $
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| 8 | //
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| 9 | // Copyright (c) Asial Corporation. All rights reserved.
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| 10 | //========================================================================
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| 11 |
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| 12 |
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| 13 | /*===================================================
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| 14 | // CLASS RGB
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| 15 | // Description: Color definitions as RGB triples
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| 16 | //===================================================
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| 17 | */
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| 18 |
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| 19 | class RGB {
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| 20 | public $rgb_table;
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| 21 | public $img;
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| 22 |
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| 23 | function __construct($aImg=null) {
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| 24 | $this->img = $aImg;
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| 25 |
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| 26 | // Conversion array between color names and RGB
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| 27 | $this->rgb_table = array(
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| 28 | 'aqua'=> array(0,255,255),
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| 29 | 'lime'=> array(0,255,0),
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| 30 | 'teal'=> array(0,128,128),
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| 31 | 'whitesmoke'=>array(245,245,245),
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| 32 | 'gainsboro'=>array(220,220,220),
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| 33 | 'oldlace'=>array(253,245,230),
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| 34 | 'linen'=>array(250,240,230),
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| 35 | 'antiquewhite'=>array(250,235,215),
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| 36 | 'papayawhip'=>array(255,239,213),
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| 37 | 'blanchedalmond'=>array(255,235,205),
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| 38 | 'bisque'=>array(255,228,196),
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| 39 | 'peachpuff'=>array(255,218,185),
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| 40 | 'navajowhite'=>array(255,222,173),
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| 41 | 'moccasin'=>array(255,228,181),
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| 42 | 'cornsilk'=>array(255,248,220),
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| 43 | 'ivory'=>array(255,255,240),
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| 44 | 'lemonchiffon'=>array(255,250,205),
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| 45 | 'seashell'=>array(255,245,238),
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| 46 | 'mintcream'=>array(245,255,250),
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| 47 | 'azure'=>array(240,255,255),
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| 48 | 'aliceblue'=>array(240,248,255),
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| 49 | 'lavender'=>array(230,230,250),
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| 50 | 'lavenderblush'=>array(255,240,245),
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| 51 | 'mistyrose'=>array(255,228,225),
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| 52 | 'white'=>array(255,255,255),
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| 53 | 'black'=>array(0,0,0),
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| 54 | 'darkslategray'=>array(47,79,79),
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| 55 | 'dimgray'=>array(105,105,105),
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| 56 | 'slategray'=>array(112,128,144),
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| 57 | 'lightslategray'=>array(119,136,153),
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| 58 | 'gray'=>array(190,190,190),
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| 59 | 'lightgray'=>array(211,211,211),
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| 60 | 'midnightblue'=>array(25,25,112),
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| 61 | 'navy'=>array(0,0,128),
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| 62 | 'indigo'=>array(75,0,130),
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| 63 | 'electricindigo'=>array(102,0,255),
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| 64 | 'deepindigo'=>array(138,43,226),
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| 65 | 'pigmentindigo'=>array(75,0,130),
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| 66 | 'indigodye'=>array(0,65,106),
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| 67 | 'cornflowerblue'=>array(100,149,237),
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| 68 | 'darkslateblue'=>array(72,61,139),
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| 69 | 'slateblue'=>array(106,90,205),
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| 70 | 'mediumslateblue'=>array(123,104,238),
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| 71 | 'lightslateblue'=>array(132,112,255),
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| 72 | 'mediumblue'=>array(0,0,205),
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| 73 | 'royalblue'=>array(65,105,225),
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| 74 | 'blue'=>array(0,0,255),
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| 75 | 'dodgerblue'=>array(30,144,255),
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| 76 | 'deepskyblue'=>array(0,191,255),
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| 77 | 'skyblue'=>array(135,206,235),
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| 78 | 'lightskyblue'=>array(135,206,250),
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| 79 | 'steelblue'=>array(70,130,180),
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| 80 | 'lightred'=>array(211,167,168),
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| 81 | 'lightsteelblue'=>array(176,196,222),
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| 82 | 'lightblue'=>array(173,216,230),
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| 83 | 'powderblue'=>array(176,224,230),
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| 84 | 'paleturquoise'=>array(175,238,238),
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| 85 | 'darkturquoise'=>array(0,206,209),
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| 86 | 'mediumturquoise'=>array(72,209,204),
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| 87 | 'turquoise'=>array(64,224,208),
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| 88 | 'cyan'=>array(0,255,255),
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| 89 | 'lightcyan'=>array(224,255,255),
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| 90 | 'cadetblue'=>array(95,158,160),
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| 91 | 'mediumaquamarine'=>array(102,205,170),
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| 92 | 'aquamarine'=>array(127,255,212),
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| 93 | 'darkgreen'=>array(0,100,0),
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| 94 | 'darkolivegreen'=>array(85,107,47),
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| 95 | 'darkseagreen'=>array(143,188,143),
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| 96 | 'seagreen'=>array(46,139,87),
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| 97 | 'mediumseagreen'=>array(60,179,113),
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| 98 | 'lightseagreen'=>array(32,178,170),
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| 99 | 'palegreen'=>array(152,251,152),
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| 100 | 'springgreen'=>array(0,255,127),
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| 101 | 'lawngreen'=>array(124,252,0),
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| 102 | 'green'=>array(0,255,0),
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| 103 | 'chartreuse'=>array(127,255,0),
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| 104 | 'mediumspringgreen'=>array(0,250,154),
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| 105 | 'greenyellow'=>array(173,255,47),
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| 106 | 'limegreen'=>array(50,205,50),
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| 107 | 'yellowgreen'=>array(154,205,50),
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| 108 | 'forestgreen'=>array(34,139,34),
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| 109 | 'olivedrab'=>array(107,142,35),
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| 110 | 'darkkhaki'=>array(189,183,107),
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| 111 | 'khaki'=>array(240,230,140),
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| 112 | 'palegoldenrod'=>array(238,232,170),
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| 113 | 'lightgoldenrodyellow'=>array(250,250,210),
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| 114 | 'lightyellow'=>array(255,255,200),
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| 115 | 'yellow'=>array(255,255,0),
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| 116 | 'gold'=>array(255,215,0),
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| 117 | 'lightgoldenrod'=>array(238,221,130),
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| 118 | 'goldenrod'=>array(218,165,32),
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| 119 | 'darkgoldenrod'=>array(184,134,11),
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| 120 | 'rosybrown'=>array(188,143,143),
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| 121 | 'indianred'=>array(205,92,92),
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| 122 | 'saddlebrown'=>array(139,69,19),
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| 123 | 'sienna'=>array(160,82,45),
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| 124 | 'peru'=>array(205,133,63),
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| 125 | 'burlywood'=>array(222,184,135),
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| 126 | 'beige'=>array(245,245,220),
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| 127 | 'wheat'=>array(245,222,179),
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| 128 | 'sandybrown'=>array(244,164,96),
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| 129 | 'tan'=>array(210,180,140),
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| 130 | 'chocolate'=>array(210,105,30),
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| 131 | 'firebrick'=>array(178,34,34),
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| 132 | 'brown'=>array(165,42,42),
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| 133 | 'darksalmon'=>array(233,150,122),
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| 134 | 'salmon'=>array(250,128,114),
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| 135 | 'lightsalmon'=>array(255,160,122),
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| 136 | 'orange'=>array(255,165,0),
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| 137 | 'darkorange'=>array(255,140,0),
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| 138 | 'coral'=>array(255,127,80),
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| 139 | 'lightcoral'=>array(240,128,128),
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| 140 | 'tomato'=>array(255,99,71),
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| 141 | 'orangered'=>array(255,69,0),
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| 142 | 'red'=>array(255,0,0),
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| 143 | 'hotpink'=>array(255,105,180),
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| 144 | 'deeppink'=>array(255,20,147),
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| 145 | 'pink'=>array(255,192,203),
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| 146 | 'lightpink'=>array(255,182,193),
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| 147 | 'palevioletred'=>array(219,112,147),
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| 148 | 'maroon'=>array(176,48,96),
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| 149 | 'mediumvioletred'=>array(199,21,133),
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| 150 | 'violetred'=>array(208,32,144),
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| 151 | 'magenta'=>array(255,0,255),
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| 152 | 'violet'=>array(238,130,238),
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| 153 | 'plum'=>array(221,160,221),
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| 154 | 'orchid'=>array(218,112,214),
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| 155 | 'mediumorchid'=>array(186,85,211),
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| 156 | 'darkorchid'=>array(153,50,204),
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| 157 | 'darkviolet'=>array(148,0,211),
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| 158 | 'blueviolet'=>array(138,43,226),
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| 159 | 'purple'=>array(160,32,240),
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| 160 | 'mediumpurple'=>array(147,112,219),
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| 161 | 'thistle'=>array(216,191,216),
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| 162 | 'snow1'=>array(255,250,250),
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| 163 | 'snow2'=>array(238,233,233),
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| 164 | 'snow3'=>array(205,201,201),
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| 165 | 'snow4'=>array(139,137,137),
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| 166 | 'seashell1'=>array(255,245,238),
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| 167 | 'seashell2'=>array(238,229,222),
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| 168 | 'seashell3'=>array(205,197,191),
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| 169 | 'seashell4'=>array(139,134,130),
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| 170 | 'AntiqueWhite1'=>array(255,239,219),
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| 171 | 'AntiqueWhite2'=>array(238,223,204),
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| 172 | 'AntiqueWhite3'=>array(205,192,176),
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| 173 | 'AntiqueWhite4'=>array(139,131,120),
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| 174 | 'bisque1'=>array(255,228,196),
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| 175 | 'bisque2'=>array(238,213,183),
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| 176 | 'bisque3'=>array(205,183,158),
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| 177 | 'bisque4'=>array(139,125,107),
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| 178 | 'peachPuff1'=>array(255,218,185),
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| 179 | 'peachpuff2'=>array(238,203,173),
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| 180 | 'peachpuff3'=>array(205,175,149),
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| 181 | 'peachpuff4'=>array(139,119,101),
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| 182 | 'navajowhite1'=>array(255,222,173),
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| 183 | 'navajowhite2'=>array(238,207,161),
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| 184 | 'navajowhite3'=>array(205,179,139),
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| 185 | 'navajowhite4'=>array(139,121,94),
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| 186 | 'lemonchiffon1'=>array(255,250,205),
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| 187 | 'lemonchiffon2'=>array(238,233,191),
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| 188 | 'lemonchiffon3'=>array(205,201,165),
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| 189 | 'lemonchiffon4'=>array(139,137,112),
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| 190 | 'ivory1'=>array(255,255,240),
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| 191 | 'ivory2'=>array(238,238,224),
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| 192 | 'ivory3'=>array(205,205,193),
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| 193 | 'ivory4'=>array(139,139,131),
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| 194 | 'honeydew'=>array(193,205,193),
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| 195 | 'lavenderblush1'=>array(255,240,245),
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| 196 | 'lavenderblush2'=>array(238,224,229),
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| 197 | 'lavenderblush3'=>array(205,193,197),
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| 198 | 'lavenderblush4'=>array(139,131,134),
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| 199 | 'mistyrose1'=>array(255,228,225),
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| 200 | 'mistyrose2'=>array(238,213,210),
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| 201 | 'mistyrose3'=>array(205,183,181),
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| 202 | 'mistyrose4'=>array(139,125,123),
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| 203 | 'azure1'=>array(240,255,255),
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| 204 | 'azure2'=>array(224,238,238),
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| 205 | 'azure3'=>array(193,205,205),
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| 206 | 'azure4'=>array(131,139,139),
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| 207 | 'slateblue1'=>array(131,111,255),
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| 208 | 'slateblue2'=>array(122,103,238),
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| 209 | 'slateblue3'=>array(105,89,205),
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| 210 | 'slateblue4'=>array(71,60,139),
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| 211 | 'royalblue1'=>array(72,118,255),
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| 212 | 'royalblue2'=>array(67,110,238),
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| 213 | 'royalblue3'=>array(58,95,205),
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| 214 | 'royalblue4'=>array(39,64,139),
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| 215 | 'dodgerblue1'=>array(30,144,255),
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| 216 | 'dodgerblue2'=>array(28,134,238),
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| 217 | 'dodgerblue3'=>array(24,116,205),
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| 218 | 'dodgerblue4'=>array(16,78,139),
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| 219 | 'steelblue1'=>array(99,184,255),
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| 220 | 'steelblue2'=>array(92,172,238),
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| 221 | 'steelblue3'=>array(79,148,205),
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| 222 | 'steelblue4'=>array(54,100,139),
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| 223 | 'deepskyblue1'=>array(0,191,255),
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| 224 | 'deepskyblue2'=>array(0,178,238),
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| 225 | 'deepskyblue3'=>array(0,154,205),
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| 226 | 'deepskyblue4'=>array(0,104,139),
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| 227 | 'skyblue1'=>array(135,206,255),
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| 228 | 'skyblue2'=>array(126,192,238),
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| 229 | 'skyblue3'=>array(108,166,205),
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| 230 | 'skyblue4'=>array(74,112,139),
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| 231 | 'lightskyblue1'=>array(176,226,255),
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| 232 | 'lightskyblue2'=>array(164,211,238),
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| 233 | 'lightskyblue3'=>array(141,182,205),
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| 234 | 'lightskyblue4'=>array(96,123,139),
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| 235 | 'slategray1'=>array(198,226,255),
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| 236 | 'slategray2'=>array(185,211,238),
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| 237 | 'slategray3'=>array(159,182,205),
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| 238 | 'slategray4'=>array(108,123,139),
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| 239 | 'lightsteelblue1'=>array(202,225,255),
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| 240 | 'lightsteelblue2'=>array(188,210,238),
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| 241 | 'lightsteelblue3'=>array(162,181,205),
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| 242 | 'lightsteelblue4'=>array(110,123,139),
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| 243 | 'lightblue1'=>array(191,239,255),
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| 244 | 'lightblue2'=>array(178,223,238),
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| 245 | 'lightblue3'=>array(154,192,205),
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| 246 | 'lightblue4'=>array(104,131,139),
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| 247 | 'lightcyan1'=>array(224,255,255),
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| 248 | 'lightcyan2'=>array(209,238,238),
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| 249 | 'lightcyan3'=>array(180,205,205),
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| 250 | 'lightcyan4'=>array(122,139,139),
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| 251 | 'paleturquoise1'=>array(187,255,255),
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| 252 | 'paleturquoise2'=>array(174,238,238),
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| 253 | 'paleturquoise3'=>array(150,205,205),
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| 254 | 'paleturquoise4'=>array(102,139,139),
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| 255 | 'cadetblue1'=>array(152,245,255),
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| 256 | 'cadetblue2'=>array(142,229,238),
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| 257 | 'cadetblue3'=>array(122,197,205),
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| 258 | 'cadetblue4'=>array(83,134,139),
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| 259 | 'turquoise1'=>array(0,245,255),
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| 260 | 'turquoise2'=>array(0,229,238),
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| 261 | 'turquoise3'=>array(0,197,205),
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| 262 | 'turquoise4'=>array(0,134,139),
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| 263 | 'cyan1'=>array(0,255,255),
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| 264 | 'cyan2'=>array(0,238,238),
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| 265 | 'cyan3'=>array(0,205,205),
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| 266 | 'cyan4'=>array(0,139,139),
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| 267 | 'darkslategray1'=>array(151,255,255),
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| 268 | 'darkslategray2'=>array(141,238,238),
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| 269 | 'darkslategray3'=>array(121,205,205),
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| 270 | 'darkslategray4'=>array(82,139,139),
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| 271 | 'aquamarine1'=>array(127,255,212),
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| 272 | 'aquamarine2'=>array(118,238,198),
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| 273 | 'aquamarine3'=>array(102,205,170),
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| 274 | 'aquamarine4'=>array(69,139,116),
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| 275 | 'darkseagreen1'=>array(193,255,193),
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| 276 | 'darkseagreen2'=>array(180,238,180),
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| 277 | 'darkseagreen3'=>array(155,205,155),
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| 278 | 'darkseagreen4'=>array(105,139,105),
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| 279 | 'seagreen1'=>array(84,255,159),
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| 280 | 'seagreen2'=>array(78,238,148),
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| 281 | 'seagreen3'=>array(67,205,128),
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| 282 | 'seagreen4'=>array(46,139,87),
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| 283 | 'palegreen1'=>array(154,255,154),
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| 284 | 'palegreen2'=>array(144,238,144),
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| 285 | 'palegreen3'=>array(124,205,124),
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| 286 | 'palegreen4'=>array(84,139,84),
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| 287 | 'springgreen1'=>array(0,255,127),
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| 288 | 'springgreen2'=>array(0,238,118),
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| 289 | 'springgreen3'=>array(0,205,102),
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| 290 | 'springgreen4'=>array(0,139,69),
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| 291 | 'chartreuse1'=>array(127,255,0),
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| 292 | 'chartreuse2'=>array(118,238,0),
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| 293 | 'chartreuse3'=>array(102,205,0),
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| 294 | 'chartreuse4'=>array(69,139,0),
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| 295 | 'olivedrab1'=>array(192,255,62),
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| 296 | 'olivedrab2'=>array(179,238,58),
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| 297 | 'olivedrab3'=>array(154,205,50),
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| 298 | 'olivedrab4'=>array(105,139,34),
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| 299 | 'darkolivegreen1'=>array(202,255,112),
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| 300 | 'darkolivegreen2'=>array(188,238,104),
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| 301 | 'darkolivegreen3'=>array(162,205,90),
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| 302 | 'darkolivegreen4'=>array(110,139,61),
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| 303 | 'khaki1'=>array(255,246,143),
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| 304 | 'khaki2'=>array(238,230,133),
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| 305 | 'khaki3'=>array(205,198,115),
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| 306 | 'khaki4'=>array(139,134,78),
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| 307 | 'lightgoldenrod1'=>array(255,236,139),
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| 308 | 'lightgoldenrod2'=>array(238,220,130),
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| 309 | 'lightgoldenrod3'=>array(205,190,112),
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| 310 | 'lightgoldenrod4'=>array(139,129,76),
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| 311 | 'yellow1'=>array(255,255,0),
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| 312 | 'yellow2'=>array(238,238,0),
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| 313 | 'yellow3'=>array(205,205,0),
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| 314 | 'yellow4'=>array(139,139,0),
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| 315 | 'gold1'=>array(255,215,0),
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| 316 | 'gold2'=>array(238,201,0),
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| 317 | 'gold3'=>array(205,173,0),
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| 318 | 'gold4'=>array(139,117,0),
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| 319 | 'goldenrod1'=>array(255,193,37),
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| 320 | 'goldenrod2'=>array(238,180,34),
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| 321 | 'goldenrod3'=>array(205,155,29),
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| 322 | 'goldenrod4'=>array(139,105,20),
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| 323 | 'darkgoldenrod1'=>array(255,185,15),
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| 324 | 'darkgoldenrod2'=>array(238,173,14),
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| 325 | 'darkgoldenrod3'=>array(205,149,12),
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| 326 | 'darkgoldenrod4'=>array(139,101,8),
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| 327 | 'rosybrown1'=>array(255,193,193),
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| 328 | 'rosybrown2'=>array(238,180,180),
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| 329 | 'rosybrown3'=>array(205,155,155),
|
|---|
| 330 | 'rosybrown4'=>array(139,105,105),
|
|---|
| 331 | 'indianred1'=>array(255,106,106),
|
|---|
| 332 | 'indianred2'=>array(238,99,99),
|
|---|
| 333 | 'indianred3'=>array(205,85,85),
|
|---|
| 334 | 'indianred4'=>array(139,58,58),
|
|---|
| 335 | 'sienna1'=>array(255,130,71),
|
|---|
| 336 | 'sienna2'=>array(238,121,66),
|
|---|
| 337 | 'sienna3'=>array(205,104,57),
|
|---|
| 338 | 'sienna4'=>array(139,71,38),
|
|---|
| 339 | 'burlywood1'=>array(255,211,155),
|
|---|
| 340 | 'burlywood2'=>array(238,197,145),
|
|---|
| 341 | 'burlywood3'=>array(205,170,125),
|
|---|
| 342 | 'burlywood4'=>array(139,115,85),
|
|---|
| 343 | 'wheat1'=>array(255,231,186),
|
|---|
| 344 | 'wheat2'=>array(238,216,174),
|
|---|
| 345 | 'wheat3'=>array(205,186,150),
|
|---|
| 346 | 'wheat4'=>array(139,126,102),
|
|---|
| 347 | 'tan1'=>array(255,165,79),
|
|---|
| 348 | 'tan2'=>array(238,154,73),
|
|---|
| 349 | 'tan3'=>array(205,133,63),
|
|---|
| 350 | 'tan4'=>array(139,90,43),
|
|---|
| 351 | 'chocolate1'=>array(255,127,36),
|
|---|
| 352 | 'chocolate2'=>array(238,118,33),
|
|---|
| 353 | 'chocolate3'=>array(205,102,29),
|
|---|
| 354 | 'chocolate4'=>array(139,69,19),
|
|---|
| 355 | 'firebrick1'=>array(255,48,48),
|
|---|
| 356 | 'firebrick2'=>array(238,44,44),
|
|---|
| 357 | 'firebrick3'=>array(205,38,38),
|
|---|
| 358 | 'firebrick4'=>array(139,26,26),
|
|---|
| 359 | 'brown1'=>array(255,64,64),
|
|---|
| 360 | 'brown2'=>array(238,59,59),
|
|---|
| 361 | 'brown3'=>array(205,51,51),
|
|---|
| 362 | 'brown4'=>array(139,35,35),
|
|---|
| 363 | 'salmon1'=>array(255,140,105),
|
|---|
| 364 | 'salmon2'=>array(238,130,98),
|
|---|
| 365 | 'salmon3'=>array(205,112,84),
|
|---|
| 366 | 'salmon4'=>array(139,76,57),
|
|---|
| 367 | 'lightsalmon1'=>array(255,160,122),
|
|---|
| 368 | 'lightsalmon2'=>array(238,149,114),
|
|---|
| 369 | 'lightsalmon3'=>array(205,129,98),
|
|---|
| 370 | 'lightsalmon4'=>array(139,87,66),
|
|---|
| 371 | 'orange1'=>array(255,165,0),
|
|---|
| 372 | 'orange2'=>array(238,154,0),
|
|---|
| 373 | 'orange3'=>array(205,133,0),
|
|---|
| 374 | 'orange4'=>array(139,90,0),
|
|---|
| 375 | 'darkorange1'=>array(255,127,0),
|
|---|
| 376 | 'darkorange2'=>array(238,118,0),
|
|---|
| 377 | 'darkorange3'=>array(205,102,0),
|
|---|
| 378 | 'darkorange4'=>array(139,69,0),
|
|---|
| 379 | 'coral1'=>array(255,114,86),
|
|---|
| 380 | 'coral2'=>array(238,106,80),
|
|---|
| 381 | 'coral3'=>array(205,91,69),
|
|---|
| 382 | 'coral4'=>array(139,62,47),
|
|---|
| 383 | 'tomato1'=>array(255,99,71),
|
|---|
| 384 | 'tomato2'=>array(238,92,66),
|
|---|
| 385 | 'tomato3'=>array(205,79,57),
|
|---|
| 386 | 'tomato4'=>array(139,54,38),
|
|---|
| 387 | 'orangered1'=>array(255,69,0),
|
|---|
| 388 | 'orangered2'=>array(238,64,0),
|
|---|
| 389 | 'orangered3'=>array(205,55,0),
|
|---|
| 390 | 'orangered4'=>array(139,37,0),
|
|---|
| 391 | 'deeppink1'=>array(255,20,147),
|
|---|
| 392 | 'deeppink2'=>array(238,18,137),
|
|---|
| 393 | 'deeppink3'=>array(205,16,118),
|
|---|
| 394 | 'deeppink4'=>array(139,10,80),
|
|---|
| 395 | 'hotpink1'=>array(255,110,180),
|
|---|
| 396 | 'hotpink2'=>array(238,106,167),
|
|---|
| 397 | 'hotpink3'=>array(205,96,144),
|
|---|
| 398 | 'hotpink4'=>array(139,58,98),
|
|---|
| 399 | 'pink1'=>array(255,181,197),
|
|---|
| 400 | 'pink2'=>array(238,169,184),
|
|---|
| 401 | 'pink3'=>array(205,145,158),
|
|---|
| 402 | 'pink4'=>array(139,99,108),
|
|---|
| 403 | 'lightpink1'=>array(255,174,185),
|
|---|
| 404 | 'lightpink2'=>array(238,162,173),
|
|---|
| 405 | 'lightpink3'=>array(205,140,149),
|
|---|
| 406 | 'lightpink4'=>array(139,95,101),
|
|---|
| 407 | 'palevioletred1'=>array(255,130,171),
|
|---|
| 408 | 'palevioletred2'=>array(238,121,159),
|
|---|
| 409 | 'palevioletred3'=>array(205,104,137),
|
|---|
| 410 | 'palevioletred4'=>array(139,71,93),
|
|---|
| 411 | 'maroon1'=>array(255,52,179),
|
|---|
| 412 | 'maroon2'=>array(238,48,167),
|
|---|
| 413 | 'maroon3'=>array(205,41,144),
|
|---|
| 414 | 'maroon4'=>array(139,28,98),
|
|---|
| 415 | 'violetred1'=>array(255,62,150),
|
|---|
| 416 | 'violetred2'=>array(238,58,140),
|
|---|
| 417 | 'violetred3'=>array(205,50,120),
|
|---|
| 418 | 'violetred4'=>array(139,34,82),
|
|---|
| 419 | 'magenta1'=>array(255,0,255),
|
|---|
| 420 | 'magenta2'=>array(238,0,238),
|
|---|
| 421 | 'magenta3'=>array(205,0,205),
|
|---|
| 422 | 'magenta4'=>array(139,0,139),
|
|---|
| 423 | 'mediumred'=>array(140,34,34),
|
|---|
| 424 | 'orchid1'=>array(255,131,250),
|
|---|
| 425 | 'orchid2'=>array(238,122,233),
|
|---|
| 426 | 'orchid3'=>array(205,105,201),
|
|---|
| 427 | 'orchid4'=>array(139,71,137),
|
|---|
| 428 | 'plum1'=>array(255,187,255),
|
|---|
| 429 | 'plum2'=>array(238,174,238),
|
|---|
| 430 | 'plum3'=>array(205,150,205),
|
|---|
| 431 | 'plum4'=>array(139,102,139),
|
|---|
| 432 | 'mediumorchid1'=>array(224,102,255),
|
|---|
| 433 | 'mediumorchid2'=>array(209,95,238),
|
|---|
| 434 | 'mediumorchid3'=>array(180,82,205),
|
|---|
| 435 | 'mediumorchid4'=>array(122,55,139),
|
|---|
| 436 | 'darkorchid1'=>array(191,62,255),
|
|---|
| 437 | 'darkorchid2'=>array(178,58,238),
|
|---|
| 438 | 'darkorchid3'=>array(154,50,205),
|
|---|
| 439 | 'darkorchid4'=>array(104,34,139),
|
|---|
| 440 | 'purple1'=>array(155,48,255),
|
|---|
| 441 | 'purple2'=>array(145,44,238),
|
|---|
| 442 | 'purple3'=>array(125,38,205),
|
|---|
| 443 | 'purple4'=>array(85,26,139),
|
|---|
| 444 | 'mediumpurple1'=>array(171,130,255),
|
|---|
| 445 | 'mediumpurple2'=>array(159,121,238),
|
|---|
| 446 | 'mediumpurple3'=>array(137,104,205),
|
|---|
| 447 | 'mediumpurple4'=>array(93,71,139),
|
|---|
| 448 | 'thistle1'=>array(255,225,255),
|
|---|
| 449 | 'thistle2'=>array(238,210,238),
|
|---|
| 450 | 'thistle3'=>array(205,181,205),
|
|---|
| 451 | 'thistle4'=>array(139,123,139),
|
|---|
| 452 | 'gray1'=>array(10,10,10),
|
|---|
| 453 | 'gray2'=>array(40,40,30),
|
|---|
| 454 | 'gray3'=>array(70,70,70),
|
|---|
| 455 | 'gray4'=>array(100,100,100),
|
|---|
| 456 | 'gray5'=>array(130,130,130),
|
|---|
| 457 | 'gray6'=>array(160,160,160),
|
|---|
| 458 | 'gray7'=>array(190,190,190),
|
|---|
| 459 | 'gray8'=>array(210,210,210),
|
|---|
| 460 | 'gray9'=>array(240,240,240),
|
|---|
| 461 | 'darkgray'=>array(100,100,100),
|
|---|
| 462 | 'darkblue'=>array(0,0,139),
|
|---|
| 463 | 'darkcyan'=>array(0,139,139),
|
|---|
| 464 | 'darkmagenta'=>array(139,0,139),
|
|---|
| 465 | 'darkred'=>array(139,0,0),
|
|---|
| 466 | 'silver'=>array(192, 192, 192),
|
|---|
| 467 | 'eggplant'=>array(144,176,168),
|
|---|
| 468 | 'lightgreen'=>array(144,238,144));
|
|---|
| 469 | }
|
|---|
| 470 |
|
|---|
| 471 |
|
|---|
| 472 | //----------------
|
|---|
| 473 | // PUBLIC METHODS
|
|---|
| 474 | // Colors can be specified as either
|
|---|
| 475 | // 1. #xxxxxx HTML style
|
|---|
| 476 | // 2. "colorname" as a named color
|
|---|
| 477 | // 3. array(r,g,b) RGB triple
|
|---|
| 478 | // This function translates this to a native RGB format and returns an
|
|---|
| 479 | // RGB triple.
|
|---|
| 480 |
|
|---|
| 481 | function Color($aColor) {
|
|---|
| 482 | if (is_string($aColor)) {
|
|---|
| 483 | $matches = array();
|
|---|
| 484 | // this regex will parse a color string and fill the $matches array as such:
|
|---|
| 485 | // 0: the full match if any
|
|---|
| 486 | // 1: a hex string preceded by a hash, can be 3 characters (#fff) or 6 (#ffffff) (4 or 5 also accepted but...)
|
|---|
| 487 | // 2,3,4: r,g,b values in hex if the first character of the string is #
|
|---|
| 488 | // 5: all alpha-numeric characters at the beginning of the string if string does not start with #
|
|---|
| 489 | // 6: alpha value prefixed by @ if supplied
|
|---|
| 490 | // 7: alpha value with @ stripped
|
|---|
| 491 | // 8: adjust value prefixed with : if supplied
|
|---|
| 492 | // 9: adjust value with : stripped
|
|---|
| 493 | $regex = '/(#([0-9a-fA-F]{1,2})([0-9a-fA-F]{1,2})([0-9a-fA-F]{1,2}))?([\w]+)?(@([\d\.,]+))?(:([\d\.,]+))?/';
|
|---|
| 494 | if(!preg_match($regex, $aColor, $matches)) {
|
|---|
| 495 | JpGraphError::RaiseL(25078,$aColor);//(" Unknown color: $aColor");
|
|---|
| 496 | }
|
|---|
| 497 | if(empty($matches[5])) {
|
|---|
| 498 | $r = strlen($matches[2]) == 1 ? $matches[2].$matches[2] : $matches[2];
|
|---|
| 499 | $g = strlen($matches[3]) == 1 ? $matches[3].$matches[3] : $matches[3];
|
|---|
| 500 | $b = strlen($matches[4]) == 1 ? $matches[4].$matches[4] : $matches[4];
|
|---|
| 501 | $r = hexdec($r);
|
|---|
| 502 | $g = hexdec($g);
|
|---|
| 503 | $b = hexdec($b);
|
|---|
| 504 | }else {
|
|---|
| 505 | if(!isset($this->rgb_table[$matches[5]]) ) {
|
|---|
| 506 | JpGraphError::RaiseL(25078,$aColor);//(" Unknown color: $aColor");
|
|---|
| 507 | }
|
|---|
| 508 | $r = $this->rgb_table[$matches[5]][0];
|
|---|
| 509 | $g = $this->rgb_table[$matches[5]][1];
|
|---|
| 510 | $b = $this->rgb_table[$matches[5]][2];
|
|---|
| 511 | }
|
|---|
| 512 | $alpha = isset($matches[7]) ? str_replace(',','.',$matches[7]) : 0;
|
|---|
| 513 | $adj = isset($matches[9]) ? str_replace(',','.',$matches[9]) : 1.0;
|
|---|
| 514 |
|
|---|
| 515 | if( $adj < 0 ) {
|
|---|
| 516 | JpGraphError::RaiseL(25077);//('Adjustment factor for color must be > 0');
|
|---|
| 517 | }
|
|---|
| 518 |
|
|---|
| 519 | // Scale adj so that an adj=2 always
|
|---|
| 520 | // makes the color 100% white (i.e. 255,255,255.
|
|---|
| 521 | // and adj=1 neutral and adj=0 black.
|
|---|
| 522 | if( $adj == 1) {
|
|---|
| 523 | return array($r,$g,$b,$alpha);
|
|---|
| 524 | }
|
|---|
| 525 | elseif( $adj > 1 ) {
|
|---|
| 526 | $m = ($adj-1.0)*(255-min(255,min($r,min($g,$b))));
|
|---|
| 527 | return array(min(255,$r+$m), min(255,$g+$m), min(255,$b+$m),$alpha);
|
|---|
| 528 | }
|
|---|
| 529 | elseif( $adj < 1 ) {
|
|---|
| 530 | $m = ($adj-1.0)*max(255,max($r,max($g,$b)));
|
|---|
| 531 | return array(max(0,$r+$m), max(0,$g+$m), max(0,$b+$m),$alpha);
|
|---|
| 532 | }
|
|---|
| 533 | } elseif( is_array($aColor) ) {
|
|---|
| 534 | if(!isset($aColor[3])) $aColor[3] = 0;
|
|---|
| 535 | return $aColor;
|
|---|
| 536 | }
|
|---|
| 537 | else {
|
|---|
| 538 | JpGraphError::RaiseL(25079,$aColor,count($aColor));//(" Unknown color specification: $aColor , size=".count($aColor));
|
|---|
| 539 | }
|
|---|
| 540 | }
|
|---|
| 541 |
|
|---|
| 542 | // Compare two colors
|
|---|
| 543 | // return true if equal
|
|---|
| 544 | function Equal($aCol1,$aCol2) {
|
|---|
| 545 | $c1 = $this->Color($aCol1);
|
|---|
| 546 | $c2 = $this->Color($aCol2);
|
|---|
| 547 | return $c1[0]==$c2[0] && $c1[1]==$c2[1] && $c1[2]==$c2[2] ;
|
|---|
| 548 | }
|
|---|
| 549 |
|
|---|
| 550 | // Allocate a new color in the current image
|
|---|
| 551 | // Return new color index, -1 if no more colors could be allocated
|
|---|
| 552 | function Allocate($aColor,$aAlpha=0.0) {
|
|---|
| 553 | list ($r, $g, $b, $a) = $this->color($aColor);
|
|---|
| 554 | // If alpha is specified in the color string then this
|
|---|
| 555 | // takes precedence over the second argument
|
|---|
| 556 | if( $a > 0 ) {
|
|---|
| 557 | $aAlpha = $a;
|
|---|
| 558 | }
|
|---|
| 559 | if( $aAlpha < 0 || $aAlpha > 1 ) {
|
|---|
| 560 | JpGraphError::RaiseL(25080);//('Alpha parameter for color must be between 0.0 and 1.0');
|
|---|
| 561 | }
|
|---|
| 562 | return imagecolorresolvealpha($this->img, $r, $g, $b, round($aAlpha * 127));
|
|---|
| 563 | }
|
|---|
| 564 |
|
|---|
| 565 | // Try to convert an array with three valid numbers to the corresponding hex array
|
|---|
| 566 | // This is currenly only used in processing the colors for barplots in order to be able
|
|---|
| 567 | // to handle the case where the color might be specified as an array of colros as well.
|
|---|
| 568 | // In that case we must be able to find out if an array of values should be interpretated as
|
|---|
| 569 | // a single color (specifeid as an RGB triple)
|
|---|
| 570 | static function tryHexConversion($aColor) {
|
|---|
| 571 | if( is_array( $aColor ) ) {
|
|---|
| 572 | if( count( $aColor ) == 3 ) {
|
|---|
| 573 | if( is_numeric($aColor[0]) && is_numeric($aColor[1]) && is_numeric($aColor[2]) ) {
|
|---|
| 574 | if( ($aColor[0] >= 0 && $aColor[0] <= 255) &&
|
|---|
| 575 | ($aColor[1] >= 0 && $aColor[1] <= 255) &&
|
|---|
| 576 | ($aColor[2] >= 0 && $aColor[2] <= 255) ) {
|
|---|
| 577 | return sprintf('#%02x%02x%02x',$aColor[0],$aColor[1],$aColor[2]);
|
|---|
| 578 | }
|
|---|
| 579 | }
|
|---|
| 580 | }
|
|---|
| 581 | }
|
|---|
| 582 | return $aColor;
|
|---|
| 583 | }
|
|---|
| 584 |
|
|---|
| 585 | // Return a RGB tripple corresponding to a position in the normal light spectrum
|
|---|
| 586 | // The argumen values is in the range [0, 1] where a value of 0 correponds to blue and
|
|---|
| 587 | // a value of 1 corresponds to red. Values in betwen is mapped to a linear interpolation
|
|---|
| 588 | // of the constituting colors in the visible color spectra.
|
|---|
| 589 | // The $aDynamicRange specified how much of the dynamic range we shold use
|
|---|
| 590 | // a value of 1.0 give the full dyanmic range and a lower value give more dark
|
|---|
| 591 | // colors. In the extreme of 0.0 then all colors will be black.
|
|---|
| 592 | static function GetSpectrum($aVal,$aDynamicRange=1.0) {
|
|---|
| 593 | if( $aVal < 0 || $aVal > 1.0001 ) {
|
|---|
| 594 | return array(0,0,0); // Invalid case - just return black
|
|---|
| 595 | }
|
|---|
| 596 |
|
|---|
| 597 | $sat = round(255*$aDynamicRange);
|
|---|
| 598 | $a = 0.25;
|
|---|
| 599 | if( $aVal <= 0.25 ) {
|
|---|
| 600 | return array(0, round($sat*$aVal/$a), $sat);
|
|---|
| 601 | }
|
|---|
| 602 | elseif( $aVal <= 0.5 ) {
|
|---|
| 603 | return array(0, $sat, round($sat-$sat*($aVal-0.25)/$a));
|
|---|
| 604 | }
|
|---|
| 605 | elseif( $aVal <= 0.75 ) {
|
|---|
| 606 | return array(round($sat*($aVal-0.5)/$a), $sat, 0);
|
|---|
| 607 | }
|
|---|
| 608 | else {
|
|---|
| 609 | return array($sat, round($sat-$sat*($aVal-0.75)/$a), 0);
|
|---|
| 610 | }
|
|---|
| 611 | }
|
|---|
| 612 |
|
|---|
| 613 | } // Class
|
|---|
| 614 |
|
|---|
| 615 | ?>
|
|---|
