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