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), |
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330 | 'rosybrown4'=>array(139,105,105), |
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331 | 'indianred1'=>array(255,106,106), |
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332 | 'indianred2'=>array(238,99,99), |
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333 | 'indianred3'=>array(205,85,85), |
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334 | 'indianred4'=>array(139,58,58), |
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335 | 'sienna1'=>array(255,130,71), |
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336 | 'sienna2'=>array(238,121,66), |
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337 | 'sienna3'=>array(205,104,57), |
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338 | 'sienna4'=>array(139,71,38), |
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339 | 'burlywood1'=>array(255,211,155), |
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340 | 'burlywood2'=>array(238,197,145), |
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341 | 'burlywood3'=>array(205,170,125), |
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342 | 'burlywood4'=>array(139,115,85), |
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343 | 'wheat1'=>array(255,231,186), |
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344 | 'wheat2'=>array(238,216,174), |
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345 | 'wheat3'=>array(205,186,150), |
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346 | 'wheat4'=>array(139,126,102), |
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347 | 'tan1'=>array(255,165,79), |
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348 | 'tan2'=>array(238,154,73), |
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349 | 'tan3'=>array(205,133,63), |
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350 | 'tan4'=>array(139,90,43), |
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351 | 'chocolate1'=>array(255,127,36), |
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352 | 'chocolate2'=>array(238,118,33), |
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353 | 'chocolate3'=>array(205,102,29), |
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354 | 'chocolate4'=>array(139,69,19), |
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355 | 'firebrick1'=>array(255,48,48), |
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356 | 'firebrick2'=>array(238,44,44), |
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357 | 'firebrick3'=>array(205,38,38), |
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358 | 'firebrick4'=>array(139,26,26), |
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359 | 'brown1'=>array(255,64,64), |
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360 | 'brown2'=>array(238,59,59), |
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361 | 'brown3'=>array(205,51,51), |
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362 | 'brown4'=>array(139,35,35), |
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363 | 'salmon1'=>array(255,140,105), |
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364 | 'salmon2'=>array(238,130,98), |
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365 | 'salmon3'=>array(205,112,84), |
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366 | 'salmon4'=>array(139,76,57), |
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367 | 'lightsalmon1'=>array(255,160,122), |
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368 | 'lightsalmon2'=>array(238,149,114), |
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369 | 'lightsalmon3'=>array(205,129,98), |
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370 | 'lightsalmon4'=>array(139,87,66), |
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371 | 'orange1'=>array(255,165,0), |
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372 | 'orange2'=>array(238,154,0), |
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373 | 'orange3'=>array(205,133,0), |
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374 | 'orange4'=>array(139,90,0), |
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375 | 'darkorange1'=>array(255,127,0), |
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376 | 'darkorange2'=>array(238,118,0), |
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377 | 'darkorange3'=>array(205,102,0), |
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378 | 'darkorange4'=>array(139,69,0), |
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379 | 'coral1'=>array(255,114,86), |
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380 | 'coral2'=>array(238,106,80), |
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381 | 'coral3'=>array(205,91,69), |
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382 | 'coral4'=>array(139,62,47), |
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383 | 'tomato1'=>array(255,99,71), |
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384 | 'tomato2'=>array(238,92,66), |
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385 | 'tomato3'=>array(205,79,57), |
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386 | 'tomato4'=>array(139,54,38), |
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387 | 'orangered1'=>array(255,69,0), |
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388 | 'orangered2'=>array(238,64,0), |
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389 | 'orangered3'=>array(205,55,0), |
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390 | 'orangered4'=>array(139,37,0), |
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391 | 'deeppink1'=>array(255,20,147), |
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392 | 'deeppink2'=>array(238,18,137), |
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393 | 'deeppink3'=>array(205,16,118), |
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394 | 'deeppink4'=>array(139,10,80), |
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395 | 'hotpink1'=>array(255,110,180), |
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396 | 'hotpink2'=>array(238,106,167), |
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397 | 'hotpink3'=>array(205,96,144), |
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398 | 'hotpink4'=>array(139,58,98), |
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399 | 'pink1'=>array(255,181,197), |
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400 | 'pink2'=>array(238,169,184), |
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401 | 'pink3'=>array(205,145,158), |
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402 | 'pink4'=>array(139,99,108), |
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403 | 'lightpink1'=>array(255,174,185), |
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404 | 'lightpink2'=>array(238,162,173), |
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405 | 'lightpink3'=>array(205,140,149), |
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406 | 'lightpink4'=>array(139,95,101), |
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407 | 'palevioletred1'=>array(255,130,171), |
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408 | 'palevioletred2'=>array(238,121,159), |
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409 | 'palevioletred3'=>array(205,104,137), |
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410 | 'palevioletred4'=>array(139,71,93), |
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411 | 'maroon1'=>array(255,52,179), |
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412 | 'maroon2'=>array(238,48,167), |
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413 | 'maroon3'=>array(205,41,144), |
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414 | 'maroon4'=>array(139,28,98), |
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415 | 'violetred1'=>array(255,62,150), |
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416 | 'violetred2'=>array(238,58,140), |
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417 | 'violetred3'=>array(205,50,120), |
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418 | 'violetred4'=>array(139,34,82), |
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419 | 'magenta1'=>array(255,0,255), |
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420 | 'magenta2'=>array(238,0,238), |
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421 | 'magenta3'=>array(205,0,205), |
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422 | 'magenta4'=>array(139,0,139), |
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423 | 'mediumred'=>array(140,34,34), |
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424 | 'orchid1'=>array(255,131,250), |
---|
425 | 'orchid2'=>array(238,122,233), |
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426 | 'orchid3'=>array(205,105,201), |
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427 | 'orchid4'=>array(139,71,137), |
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428 | 'plum1'=>array(255,187,255), |
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429 | 'plum2'=>array(238,174,238), |
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430 | 'plum3'=>array(205,150,205), |
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431 | 'plum4'=>array(139,102,139), |
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432 | 'mediumorchid1'=>array(224,102,255), |
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433 | 'mediumorchid2'=>array(209,95,238), |
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434 | 'mediumorchid3'=>array(180,82,205), |
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435 | 'mediumorchid4'=>array(122,55,139), |
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436 | 'darkorchid1'=>array(191,62,255), |
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437 | 'darkorchid2'=>array(178,58,238), |
---|
438 | 'darkorchid3'=>array(154,50,205), |
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439 | 'darkorchid4'=>array(104,34,139), |
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440 | 'purple1'=>array(155,48,255), |
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441 | 'purple2'=>array(145,44,238), |
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442 | 'purple3'=>array(125,38,205), |
---|
443 | 'purple4'=>array(85,26,139), |
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444 | 'mediumpurple1'=>array(171,130,255), |
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445 | 'mediumpurple2'=>array(159,121,238), |
---|
446 | 'mediumpurple3'=>array(137,104,205), |
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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), |
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452 | 'gray1'=>array(10,10,10), |
---|
453 | 'gray2'=>array(40,40,30), |
---|
454 | 'gray3'=>array(70,70,70), |
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455 | 'gray4'=>array(100,100,100), |
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456 | 'gray5'=>array(130,130,130), |
---|
457 | 'gray6'=>array(160,160,160), |
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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 | } |
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470 | |
---|
471 | |
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472 | //---------------- |
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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 | ?> |
---|