131 Zeilen
4.8 KiB
PHP
131 Zeilen
4.8 KiB
PHP
<?php
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/*
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pSplit - class to draw spline splitted charts
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Version : 2.1.3
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Made by : Jean-Damien POGOLOTTI
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Last Update : 09/09/11
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This file can be distributed under the license you can find at :
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http://www.pchart.net/license
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You can find the whole class documentation on the pChart web site.
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*/
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define("TEXT_POS_TOP" , 690001);
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define("TEXT_POS_RIGHT" , 690002);
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/* pSplit class definition */
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class pSplit
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{
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var $pChartObject;
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/* Class creator */
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function pSplit()
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{ }
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/* Create the encoded string */
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function drawSplitPath($Object,$Values,$Format="")
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{
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$this->pChartObject = $Object;
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$Spacing = isset($Format["Spacing"]) ? $Format["Spacing"] : 20;
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$TextPadding = isset($Format["TextPadding"]) ? $Format["TextPadding"] : 2;
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$TextPos = isset($Format["TextPos"]) ? $Format["TextPos"] : TEXT_POS_TOP;
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$Surrounding = isset($Format["Surrounding"]) ? $Format["Surrounding"] : NULL;
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$Force = isset($Format["Force"]) ? $Format["Force"] : 70;
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$Segments = isset($Format["Segments"]) ? $Format["Segments"] : 15;
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$FontSize = $Object->FontSize;
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$X1 = $Object->GraphAreaX1;
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$Y1 = $Object->GraphAreaY1;
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$X2 = $Object->GraphAreaX2;
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$Y2 = $Object->GraphAreaY2;
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/* Data Processing */
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$Data = $Values->getData();
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$Palette = $Values->getPalette();
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$LabelSerie = $Data["Abscissa"];
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$DataSerie = "";
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foreach($Data["Series"] as $SerieName => $Value)
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{ if ( $SerieName != $LabelSerie && $DataSerie == "" ) { $DataSerie = $SerieName; } }
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$DataSerieSum = array_sum($Data["Series"][$DataSerie]["Data"]);
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$DataSerieCount = count($Data["Series"][$DataSerie]["Data"]);
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/* Scale Processing */
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if ( $TextPos == TEXT_POS_RIGHT )
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$YScale = (($Y2-$Y1) - (($DataSerieCount+1)*$Spacing)) / $DataSerieSum;
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else
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$YScale = (($Y2-$Y1) - ($DataSerieCount*$Spacing)) / $DataSerieSum;
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$LeftHeight = $DataSerieSum * $YScale;
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/* Re-compute graph width depending of the text mode choosen */
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if ( $TextPos == TEXT_POS_RIGHT )
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{
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$MaxWidth = 0;
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foreach($Data["Series"][$LabelSerie]["Data"] as $Key => $Label)
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{
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$Boundardies = $Object->getTextBox(0,0,$Object->FontName,$Object->FontSize,0,$Label);
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if ( $Boundardies[1]["X"] > $MaxWidth ) { $MaxWidth = $Boundardies[1]["X"] + $TextPadding*2; }
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}
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$X2 = $X2 - $MaxWidth;
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}
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/* Drawing */
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$LeftY = ((($Y2-$Y1) / 2) + $Y1) - ($LeftHeight/2);
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$RightY = $Y1;
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$VectorX = (($X2-$X1) / 2);
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foreach($Data["Series"][$DataSerie]["Data"] as $Key => $Value)
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{
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if ( isset($Data["Series"][$LabelSerie]["Data"][$Key]) )
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$Label = $Data["Series"][$LabelSerie]["Data"][$Key];
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else
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$Label = "-";
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$LeftY1 = $LeftY;
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$LeftY2 = $LeftY + $Value * $YScale;
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$RightY1 = $RightY + $Spacing;
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$RightY2 = $RightY + $Spacing + $Value * $YScale;;
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$Settings = array("R"=>$Palette[$Key]["R"],"G"=>$Palette[$Key]["G"],"B"=>$Palette[$Key]["B"],"Alpha"=>$Palette[$Key]["Alpha"],"NoDraw"=>TRUE,"Segments"=>$Segments,"Surrounding"=>$Surrounding);
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$PolyGon = "";
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$Angle = $Object->getAngle($X2,$RightY1,$X1,$LeftY1);
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$VectorX1 = cos(deg2rad($Angle+90)) * $Force + ($X2-$X1)/2 + $X1;
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$VectorY1 = sin(deg2rad($Angle+90)) * $Force + ($RightY1-$LeftY1)/2 + $LeftY1;
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$VectorX2 = cos(deg2rad($Angle-90)) * $Force + ($X2-$X1)/2 + $X1;
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$VectorY2 = sin(deg2rad($Angle-90)) * $Force + ($RightY1-$LeftY1)/2 + $LeftY1;
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$Points = $Object->drawBezier($X1,$LeftY1,$X2,$RightY1,$VectorX1,$VectorY1,$VectorX2,$VectorY2,$Settings);
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foreach($Points as $Key => $Pos) { $PolyGon[] = $Pos["X"]; $PolyGon[] = $Pos["Y"]; }
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$Angle = $Object->getAngle($X2,$RightY2,$X1,$LeftY2);
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$VectorX1 = cos(deg2rad($Angle+90)) * $Force + ($X2-$X1)/2 +$X1;
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$VectorY1 = sin(deg2rad($Angle+90)) * $Force + ($RightY2-$LeftY2)/2 + $LeftY2;
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$VectorX2 = cos(deg2rad($Angle-90)) * $Force + ($X2-$X1)/2 +$X1;
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$VectorY2 = sin(deg2rad($Angle-90)) * $Force + ($RightY2-$LeftY2)/2 + $LeftY2;
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$Points = $Object->drawBezier($X1,$LeftY2,$X2,$RightY2,$VectorX1,$VectorY1,$VectorX2,$VectorY2,$Settings);
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$Points = array_reverse($Points);
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foreach($Points as $Key => $Pos) { $PolyGon[] = $Pos["X"]; $PolyGon[] = $Pos["Y"]; }
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$Object->drawPolygon($PolyGon,$Settings);
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if ( $TextPos == TEXT_POS_RIGHT )
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$Object->drawText($X2+$TextPadding,($RightY2-$RightY1)/2+$RightY1,$Label,array("Align"=>TEXT_ALIGN_MIDDLELEFT));
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else
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$Object->drawText($X2,$RightY1-$TextPadding,$Label,array("Align"=>TEXT_ALIGN_BOTTOMRIGHT));
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$LeftY = $LeftY2;
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$RightY = $RightY2;
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}
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}
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}
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?>
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