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933 lines
31 KiB
933 lines
31 KiB
<?php |
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/*======================================================================= |
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// File: JPGRAPH_PIE3D.PHP |
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// Description: 3D Pie plot extension for JpGraph |
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// Created: 2001-03-24 |
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// Ver: $Id: jpgraph_pie3d.php 1329 2009-06-20 19:23:30Z ljp $ |
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// |
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// Copyright (c) Asial Corporation. All rights reserved. |
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//======================================================================== |
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*/ |
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//=================================================== |
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// CLASS PiePlot3D |
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// Description: Plots a 3D pie with a specified projection |
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// angle between 20 and 70 degrees. |
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//=================================================== |
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class PiePlot3D extends PiePlot { |
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private $labelhintcolor="red",$showlabelhint=true; |
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private $angle=50; |
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private $edgecolor="", $edgeweight=1; |
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private $iThickness=false; |
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//--------------- |
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// CONSTRUCTOR |
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function __construct($data) { |
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$this->radius = 0.5; |
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$this->data = $data; |
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$this->title = new Text(""); |
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$this->title->SetFont(FF_FONT1,FS_BOLD); |
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$this->value = new DisplayValue(); |
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$this->value->Show(); |
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$this->value->SetFormat('%.0f%%'); |
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} |
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//--------------- |
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// PUBLIC METHODS |
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// Set label arrays |
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function SetLegends($aLegend) { |
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$this->legends = array_reverse(array_slice($aLegend,0,count($this->data))); |
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} |
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function SetSliceColors($aColors) { |
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$this->setslicecolors = $aColors; |
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} |
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function Legend($aGraph) { |
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parent::Legend($aGraph); |
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$aGraph->legend->txtcol = array_reverse($aGraph->legend->txtcol); |
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} |
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function SetCSIMTargets($aTargets,$aAlts='',$aWinTargets='') { |
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$this->csimtargets = $aTargets; |
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$this->csimwintargets = $aWinTargets; |
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$this->csimalts = $aAlts; |
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} |
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// Should the slices be separated by a line? If color is specified as "" no line |
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// will be used to separate pie slices. |
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function SetEdge($aColor='black',$aWeight=1) { |
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$this->edgecolor = $aColor; |
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$this->edgeweight = $aWeight; |
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} |
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// Specify projection angle for 3D in degrees |
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// Must be between 20 and 70 degrees |
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function SetAngle($a) { |
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if( $a<5 || $a>90 ) { |
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JpGraphError::RaiseL(14002); |
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//("PiePlot3D::SetAngle() 3D Pie projection angle must be between 5 and 85 degrees."); |
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} |
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else { |
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$this->angle = $a; |
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} |
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} |
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function Add3DSliceToCSIM($i,$xc,$yc,$height,$width,$thick,$sa,$ea) { //Slice number, ellipse centre (x,y), height, width, start angle, end angle |
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$sa *= M_PI/180; |
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$ea *= M_PI/180; |
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//add coordinates of the centre to the map |
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$coords = "$xc, $yc"; |
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//add coordinates of the first point on the arc to the map |
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$xp = floor($width*cos($sa)/2+$xc); |
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$yp = floor($yc-$height*sin($sa)/2); |
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$coords.= ", $xp, $yp"; |
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|
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//If on the front half, add the thickness offset |
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if ($sa >= M_PI && $sa <= 2*M_PI*1.01) { |
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$yp = floor($yp+$thick); |
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$coords.= ", $xp, $yp"; |
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} |
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//add coordinates every 0.2 radians |
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$a=$sa+0.2; |
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while ($a<$ea) { |
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$xp = floor($width*cos($a)/2+$xc); |
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if ($a >= M_PI && $a <= 2*M_PI*1.01) { |
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$yp = floor($yc-($height*sin($a)/2)+$thick); |
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} else { |
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$yp = floor($yc-$height*sin($a)/2); |
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} |
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$coords.= ", $xp, $yp"; |
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$a += 0.2; |
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} |
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//Add the last point on the arc |
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$xp = floor($width*cos($ea)/2+$xc); |
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$yp = floor($yc-$height*sin($ea)/2); |
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if ($ea >= M_PI && $ea <= 2*M_PI*1.01) { |
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$coords.= ", $xp, ".floor($yp+$thick); |
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} |
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$coords.= ", $xp, $yp"; |
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$alt=''; |
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if( !empty($this->csimtargets[$i]) ) { |
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$this->csimareas .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->csimtargets[$i]."\""; |
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if( !empty($this->csimwintargets[$i]) ) { |
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$this->csimareas .= " target=\"".$this->csimwintargets[$i]."\" "; |
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} |
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if( !empty($this->csimalts[$i]) ) { |
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$tmp=sprintf($this->csimalts[$i],$this->data[$i]); |
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$this->csimareas .= "alt=\"$tmp\" title=\"$tmp\" "; |
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} |
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$this->csimareas .= " />\n"; |
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} |
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} |
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function SetLabels($aLabels,$aLblPosAdj="auto") { |
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$this->labels = $aLabels; |
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$this->ilabelposadj=$aLblPosAdj; |
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} |
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// Distance from the pie to the labels |
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function SetLabelMargin($m) { |
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$this->value->SetMargin($m); |
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} |
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// Show a thin line from the pie to the label for a specific slice |
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function ShowLabelHint($f=true) { |
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$this->showlabelhint=$f; |
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} |
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// Set color of hint line to label for each slice |
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function SetLabelHintColor($c) { |
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$this->labelhintcolor=$c; |
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} |
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function SetHeight($aHeight) { |
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$this->iThickness = $aHeight; |
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} |
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// Normalize Angle between 0-360 |
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function NormAngle($a) { |
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// Normalize anle to 0 to 2M_PI |
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// |
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if( $a > 0 ) { |
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while($a > 360) $a -= 360; |
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} |
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else { |
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while($a < 0) $a += 360; |
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} |
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if( $a < 0 ) |
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$a = 360 + $a; |
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if( $a == 360 ) $a=0; |
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return $a; |
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} |
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// Draw one 3D pie slice at position ($xc,$yc) with height $z |
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function Pie3DSlice($img,$xc,$yc,$w,$h,$sa,$ea,$z,$fillcolor,$shadow=0.65) { |
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// Due to the way the 3D Pie algorithm works we are |
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// guaranteed that any slice we get into this method |
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// belongs to either the left or right side of the |
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// pie ellipse. Hence, no slice will cross 90 or 270 |
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// point. |
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if( ($sa < 90 && $ea > 90) || ( ($sa > 90 && $sa < 270) && $ea > 270) ) { |
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JpGraphError::RaiseL(14003);//('Internal assertion failed. Pie3D::Pie3DSlice'); |
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exit(1); |
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} |
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$p[] = array(); |
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// Setup pre-calculated values |
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$rsa = $sa/180*M_PI; // to Rad |
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$rea = $ea/180*M_PI; // to Rad |
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$sinsa = sin($rsa); |
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$cossa = cos($rsa); |
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$sinea = sin($rea); |
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$cosea = cos($rea); |
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// p[] is the points for the overall slice and |
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// pt[] is the points for the top pie |
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// Angular step when approximating the arc with a polygon train. |
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$step = 0.05; |
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if( $sa >= 270 ) { |
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if( $ea > 360 || ($ea > 0 && $ea <= 90) ) { |
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if( $ea > 0 && $ea <= 90 ) { |
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// Adjust angle to simplify conditions in loops |
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$rea += 2*M_PI; |
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} |
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$p = array($xc,$yc,$xc,$yc+$z, |
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$xc+$w*$cossa,$z+$yc-$h*$sinsa); |
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$pt = array($xc,$yc,$xc+$w*$cossa,$yc-$h*$sinsa); |
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for( $a=$rsa; $a < 2*M_PI; $a += $step ) { |
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$tca = cos($a); |
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$tsa = sin($a); |
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$p[] = $xc+$w*$tca; |
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$p[] = $z+$yc-$h*$tsa; |
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$pt[] = $xc+$w*$tca; |
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$pt[] = $yc-$h*$tsa; |
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} |
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$pt[] = $xc+$w; |
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$pt[] = $yc; |
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$p[] = $xc+$w; |
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$p[] = $z+$yc; |
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$p[] = $xc+$w; |
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$p[] = $yc; |
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$p[] = $xc; |
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$p[] = $yc; |
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for( $a=2*M_PI+$step; $a < $rea; $a += $step ) { |
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$pt[] = $xc + $w*cos($a); |
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$pt[] = $yc - $h*sin($a); |
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} |
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$pt[] = $xc+$w*$cosea; |
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$pt[] = $yc-$h*$sinea; |
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$pt[] = $xc; |
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$pt[] = $yc; |
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} |
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else { |
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$p = array($xc,$yc,$xc,$yc+$z, |
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$xc+$w*$cossa,$z+$yc-$h*$sinsa); |
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$pt = array($xc,$yc,$xc+$w*$cossa,$yc-$h*$sinsa); |
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$rea = $rea == 0.0 ? 2*M_PI : $rea; |
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for( $a=$rsa; $a < $rea; $a += $step ) { |
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$tca = cos($a); |
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$tsa = sin($a); |
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$p[] = $xc+$w*$tca; |
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$p[] = $z+$yc-$h*$tsa; |
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$pt[] = $xc+$w*$tca; |
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$pt[] = $yc-$h*$tsa; |
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} |
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$pt[] = $xc+$w*$cosea; |
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$pt[] = $yc-$h*$sinea; |
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$pt[] = $xc; |
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$pt[] = $yc; |
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$p[] = $xc+$w*$cosea; |
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$p[] = $z+$yc-$h*$sinea; |
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$p[] = $xc+$w*$cosea; |
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$p[] = $yc-$h*$sinea; |
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$p[] = $xc; |
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$p[] = $yc; |
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} |
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} |
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elseif( $sa >= 180 ) { |
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$p = array($xc,$yc,$xc,$yc+$z,$xc+$w*$cosea,$z+$yc-$h*$sinea); |
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$pt = array($xc,$yc,$xc+$w*$cosea,$yc-$h*$sinea); |
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for( $a=$rea; $a>$rsa; $a -= $step ) { |
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$tca = cos($a); |
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$tsa = sin($a); |
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$p[] = $xc+$w*$tca; |
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$p[] = $z+$yc-$h*$tsa; |
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$pt[] = $xc+$w*$tca; |
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$pt[] = $yc-$h*$tsa; |
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} |
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$pt[] = $xc+$w*$cossa; |
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$pt[] = $yc-$h*$sinsa; |
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$pt[] = $xc; |
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$pt[] = $yc; |
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$p[] = $xc+$w*$cossa; |
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$p[] = $z+$yc-$h*$sinsa; |
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$p[] = $xc+$w*$cossa; |
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$p[] = $yc-$h*$sinsa; |
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$p[] = $xc; |
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$p[] = $yc; |
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} |
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elseif( $sa >= 90 ) { |
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if( $ea > 180 ) { |
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$p = array($xc,$yc,$xc,$yc+$z,$xc+$w*$cosea,$z+$yc-$h*$sinea); |
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$pt = array($xc,$yc,$xc+$w*$cosea,$yc-$h*$sinea); |
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for( $a=$rea; $a > M_PI; $a -= $step ) { |
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$tca = cos($a); |
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$tsa = sin($a); |
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$p[] = $xc+$w*$tca; |
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$p[] = $z + $yc - $h*$tsa; |
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$pt[] = $xc+$w*$tca; |
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$pt[] = $yc-$h*$tsa; |
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} |
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$p[] = $xc-$w; |
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$p[] = $z+$yc; |
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$p[] = $xc-$w; |
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$p[] = $yc; |
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$p[] = $xc; |
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$p[] = $yc; |
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$pt[] = $xc-$w; |
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$pt[] = $z+$yc; |
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$pt[] = $xc-$w; |
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$pt[] = $yc; |
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for( $a=M_PI-$step; $a > $rsa; $a -= $step ) { |
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$pt[] = $xc + $w*cos($a); |
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$pt[] = $yc - $h*sin($a); |
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} |
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$pt[] = $xc+$w*$cossa; |
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$pt[] = $yc-$h*$sinsa; |
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$pt[] = $xc; |
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$pt[] = $yc; |
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} |
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else { // $sa >= 90 && $ea <= 180 |
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$p = array($xc,$yc,$xc,$yc+$z, |
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$xc+$w*$cosea,$z+$yc-$h*$sinea, |
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$xc+$w*$cosea,$yc-$h*$sinea, |
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$xc,$yc); |
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$pt = array($xc,$yc,$xc+$w*$cosea,$yc-$h*$sinea); |
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for( $a=$rea; $a>$rsa; $a -= $step ) { |
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$pt[] = $xc + $w*cos($a); |
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$pt[] = $yc - $h*sin($a); |
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} |
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$pt[] = $xc+$w*$cossa; |
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$pt[] = $yc-$h*$sinsa; |
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$pt[] = $xc; |
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$pt[] = $yc; |
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} |
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} |
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else { // sa > 0 && ea < 90 |
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$p = array($xc,$yc,$xc,$yc+$z, |
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$xc+$w*$cossa,$z+$yc-$h*$sinsa, |
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$xc+$w*$cossa,$yc-$h*$sinsa, |
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$xc,$yc); |
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$pt = array($xc,$yc,$xc+$w*$cossa,$yc-$h*$sinsa); |
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for( $a=$rsa; $a < $rea; $a += $step ) { |
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$pt[] = $xc + $w*cos($a); |
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$pt[] = $yc - $h*sin($a); |
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} |
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$pt[] = $xc+$w*$cosea; |
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$pt[] = $yc-$h*$sinea; |
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$pt[] = $xc; |
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$pt[] = $yc; |
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} |
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$img->PushColor($fillcolor.":".$shadow); |
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$img->FilledPolygon($p); |
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$img->PopColor(); |
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$img->PushColor($fillcolor); |
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$img->FilledPolygon($pt); |
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$img->PopColor(); |
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} |
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function SetStartAngle($aStart) { |
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if( $aStart < 0 || $aStart > 360 ) { |
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JpGraphError::RaiseL(14004);//('Slice start angle must be between 0 and 360 degrees.'); |
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} |
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$this->startangle = $aStart; |
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} |
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// Draw a 3D Pie |
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function Pie3D($aaoption,$img,$data,$colors,$xc,$yc,$d,$angle,$z, |
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$shadow=0.65,$startangle=0,$edgecolor="",$edgeweight=1) { |
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//--------------------------------------------------------------------------- |
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// As usual the algorithm get more complicated than I originally |
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// envisioned. I believe that this is as simple as it is possible |
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// to do it with the features I want. It's a good exercise to start |
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// thinking on how to do this to convince your self that all this |
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// is really needed for the general case. |
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// |
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// The algorithm two draw 3D pies without "real 3D" is done in |
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// two steps. |
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// First imagine the pie cut in half through a thought line between |
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// 12'a clock and 6'a clock. It now easy to imagine that we can plot |
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// the individual slices for each half by starting with the topmost |
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// pie slice and continue down to 6'a clock. |
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// |
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// In the algortithm this is done in three principal steps |
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// Step 1. Do the knife cut to ensure by splitting slices that extends |
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// over the cut line. This is done by splitting the original slices into |
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// upto 3 subslices. |
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// Step 2. Find the top slice for each half |
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// Step 3. Draw the slices from top to bottom |
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// |
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// The thing that slightly complicates this scheme with all the |
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// angle comparisons below is that we can have an arbitrary start |
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// angle so we must take into account the different equivalence classes. |
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// For the same reason we must walk through the angle array in a |
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// modulo fashion. |
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// |
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// Limitations of algorithm: |
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// * A small exploded slice which crosses the 270 degree point |
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// will get slightly nagged close to the center due to the fact that |
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// we print the slices in Z-order and that the slice left part |
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// get printed first and might get slightly nagged by a larger |
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// slice on the right side just before the right part of the small |
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// slice. Not a major problem though. |
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//--------------------------------------------------------------------------- |
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// Determine the height of the ellippse which gives an |
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// indication of the inclination angle |
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$h = ($angle/90.0)*$d; |
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$sum = 0; |
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for($i=0; $i<count($data); ++$i ) { |
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$sum += $data[$i]; |
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} |
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// Special optimization |
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if( $sum==0 ) return; |
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|
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if( $this->labeltype == 2 ) { |
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$this->adjusted_data = $this->AdjPercentage($data); |
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} |
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// Setup the start |
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$accsum = 0; |
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$a = $startangle; |
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$a = $this->NormAngle($a); |
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// |
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// Step 1 . Split all slices that crosses 90 or 270 |
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// |
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$idx=0; |
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$adjexplode=array(); |
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$numcolors = count($colors); |
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for($i=0; $i<count($data); ++$i, ++$idx ) { |
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$da = $data[$i]/$sum * 360; |
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|
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if( empty($this->explode_radius[$i]) ) { |
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$this->explode_radius[$i]=0; |
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} |
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$expscale=1; |
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if( $aaoption == 1 ) { |
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$expscale=2; |
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} |
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$la = $a + $da/2; |
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$explode = array( $xc + $this->explode_radius[$i]*cos($la*M_PI/180)*$expscale, |
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$yc - $this->explode_radius[$i]*sin($la*M_PI/180) * ($h/$d) *$expscale ); |
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$adjexplode[$idx] = $explode; |
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$labeldata[$i] = array($la,$explode[0],$explode[1]); |
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$originalangles[$i] = array($a,$a+$da); |
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|
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$ne = $this->NormAngle($a+$da); |
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if( $da <= 180 ) { |
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// If the slice size is <= 90 it can at maximum cut across |
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// one boundary (either 90 or 270) where it needs to be split |
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$split=-1; // no split |
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if( ($da<=90 && ($a <= 90 && $ne > 90)) || |
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(($da <= 180 && $da >90) && (($a < 90 || $a >= 270) && $ne > 90)) ) { |
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$split = 90; |
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} |
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elseif( ($da<=90 && ($a <= 270 && $ne > 270)) || |
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(($da<=180 && $da>90) && ($a >= 90 && $a < 270 && ($a+$da) > 270 )) ) { |
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$split = 270; |
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} |
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if( $split > 0 ) { // split in two |
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$angles[$idx] = array($a,$split); |
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$adjcolors[$idx] = $colors[$i % $numcolors]; |
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$adjexplode[$idx] = $explode; |
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$angles[++$idx] = array($split,$ne); |
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$adjcolors[$idx] = $colors[$i % $numcolors]; |
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$adjexplode[$idx] = $explode; |
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} |
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else { // no split |
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$angles[$idx] = array($a,$ne); |
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$adjcolors[$idx] = $colors[$i % $numcolors]; |
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$adjexplode[$idx] = $explode; |
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} |
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} |
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else { |
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// da>180 |
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// Slice may, depending on position, cross one or two |
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// bonudaries |
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if( $a < 90 ) $split = 90; |
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elseif( $a <= 270 ) $split = 270; |
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else $split = 90; |
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$angles[$idx] = array($a,$split); |
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$adjcolors[$idx] = $colors[$i % $numcolors]; |
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$adjexplode[$idx] = $explode; |
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//if( $a+$da > 360-$split ) { |
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// For slices larger than 270 degrees we might cross |
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// another boundary as well. This means that we must |
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// split the slice further. The comparison gets a little |
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// bit complicated since we must take into accound that |
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// a pie might have a startangle >0 and hence a slice might |
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// wrap around the 0 angle. |
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// Three cases: |
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// a) Slice starts before 90 and hence gets a split=90, but |
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// we must also check if we need to split at 270 |
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// b) Slice starts after 90 but before 270 and slices |
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// crosses 90 (after a wrap around of 0) |
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// c) If start is > 270 (hence the firstr split is at 90) |
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// and the slice is so large that it goes all the way |
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// around 270. |
|
if( ($a < 90 && ($a+$da > 270)) || ($a > 90 && $a<=270 && ($a+$da>360+90) ) || ($a > 270 && $this->NormAngle($a+$da)>270) ) { |
|
$angles[++$idx] = array($split,360-$split); |
|
$adjcolors[$idx] = $colors[$i % $numcolors]; |
|
$adjexplode[$idx] = $explode; |
|
$angles[++$idx] = array(360-$split,$ne); |
|
$adjcolors[$idx] = $colors[$i % $numcolors]; |
|
$adjexplode[$idx] = $explode; |
|
} |
|
else { |
|
// Just a simple split to the previous decided |
|
// angle. |
|
$angles[++$idx] = array($split,$ne); |
|
$adjcolors[$idx] = $colors[$i % $numcolors]; |
|
$adjexplode[$idx] = $explode; |
|
} |
|
} |
|
$a += $da; |
|
$a = $this->NormAngle($a); |
|
} |
|
|
|
// Total number of slices |
|
$n = count($angles); |
|
|
|
for($i=0; $i<$n; ++$i) { |
|
list($dbgs,$dbge) = $angles[$i]; |
|
} |
|
|
|
// |
|
// Step 2. Find start index (first pie that starts in upper left quadrant) |
|
// |
|
$minval = $angles[0][0]; |
|
$min = 0; |
|
for( $i=0; $i<$n; ++$i ) { |
|
if( $angles[$i][0] < $minval ) { |
|
$minval = $angles[$i][0]; |
|
$min = $i; |
|
} |
|
} |
|
$j = $min; |
|
$cnt = 0; |
|
while( $angles[$j][1] <= 90 ) { |
|
$j++; |
|
if( $j>=$n) { |
|
$j=0; |
|
} |
|
if( $cnt > $n ) { |
|
JpGraphError::RaiseL(14005); |
|
//("Pie3D Internal error (#1). Trying to wrap twice when looking for start index"); |
|
} |
|
++$cnt; |
|
} |
|
$start = $j; |
|
|
|
// |
|
// Step 3. Print slices in z-order |
|
// |
|
$cnt = 0; |
|
|
|
// First stroke all the slices between 90 and 270 (left half circle) |
|
// counterclockwise |
|
|
|
while( $angles[$j][0] < 270 && $aaoption !== 2 ) { |
|
|
|
list($x,$y) = $adjexplode[$j]; |
|
|
|
$this->Pie3DSlice($img,$x,$y,$d,$h,$angles[$j][0],$angles[$j][1], |
|
$z,$adjcolors[$j],$shadow); |
|
|
|
$last = array($x,$y,$j); |
|
|
|
$j++; |
|
if( $j >= $n ) $j=0; |
|
if( $cnt > $n ) { |
|
JpGraphError::RaiseL(14006); |
|
//("Pie3D Internal Error: Z-Sorting algorithm for 3D Pies is not working properly (2). Trying to wrap twice while stroking."); |
|
} |
|
++$cnt; |
|
} |
|
|
|
$slice_left = $n-$cnt; |
|
$j=$start-1; |
|
if($j<0) $j=$n-1; |
|
$cnt = 0; |
|
|
|
// The stroke all slices from 90 to -90 (right half circle) |
|
// clockwise |
|
while( $cnt < $slice_left && $aaoption !== 2 ) { |
|
|
|
list($x,$y) = $adjexplode[$j]; |
|
|
|
$this->Pie3DSlice($img,$x,$y,$d,$h,$angles[$j][0],$angles[$j][1], |
|
$z,$adjcolors[$j],$shadow); |
|
$j--; |
|
if( $cnt > $n ) { |
|
JpGraphError::RaiseL(14006); |
|
//("Pie3D Internal Error: Z-Sorting algorithm for 3D Pies is not working properly (2). Trying to wrap twice while stroking."); |
|
} |
|
if($j<0) $j=$n-1; |
|
$cnt++; |
|
} |
|
|
|
// Now do a special thing. Stroke the last slice on the left |
|
// halfcircle one more time. This is needed in the case where |
|
// the slice close to 270 have been exploded. In that case the |
|
// part of the slice close to the center of the pie might be |
|
// slightly nagged. |
|
if( $aaoption !== 2 ) |
|
$this->Pie3DSlice($img,$last[0],$last[1],$d,$h,$angles[$last[2]][0], |
|
$angles[$last[2]][1],$z,$adjcolors[$last[2]],$shadow); |
|
|
|
|
|
if( $aaoption !== 1 ) { |
|
// Now print possible labels and add csim |
|
$this->value->ApplyFont($img); |
|
$margin = $img->GetFontHeight()/2 + $this->value->margin ; |
|
for($i=0; $i < count($data); ++$i ) { |
|
$la = $labeldata[$i][0]; |
|
$x = $labeldata[$i][1] + cos($la*M_PI/180)*($d+$margin)*$this->ilabelposadj; |
|
$y = $labeldata[$i][2] - sin($la*M_PI/180)*($h+$margin)*$this->ilabelposadj; |
|
if( $this->ilabelposadj >= 1.0 ) { |
|
if( $la > 180 && $la < 360 ) $y += $z; |
|
} |
|
if( $this->labeltype == 0 ) { |
|
if( $sum > 0 ) $l = 100*$data[$i]/$sum; |
|
else $l = 0; |
|
} |
|
elseif( $this->labeltype == 1 ) { |
|
$l = $data[$i]; |
|
} |
|
else { |
|
$l = $this->adjusted_data[$i]; |
|
} |
|
if( isset($this->labels[$i]) && is_string($this->labels[$i]) ) { |
|
$l=sprintf($this->labels[$i],$l); |
|
} |
|
|
|
$this->StrokeLabels($l,$img,$labeldata[$i][0]*M_PI/180,$x,$y,$z); |
|
|
|
$this->Add3DSliceToCSIM($i,$labeldata[$i][1],$labeldata[$i][2],$h*2,$d*2,$z, |
|
$originalangles[$i][0],$originalangles[$i][1]); |
|
} |
|
} |
|
|
|
// |
|
// Finally add potential lines in pie |
|
// |
|
|
|
if( $edgecolor=="" || $aaoption !== 0 ) return; |
|
|
|
$accsum = 0; |
|
$a = $startangle; |
|
$a = $this->NormAngle($a); |
|
|
|
$a *= M_PI/180.0; |
|
|
|
$idx=0; |
|
$img->PushColor($edgecolor); |
|
$img->SetLineWeight($edgeweight); |
|
|
|
$fulledge = true; |
|
for($i=0; $i < count($data) && $fulledge; ++$i ) { |
|
if( empty($this->explode_radius[$i]) ) { |
|
$this->explode_radius[$i]=0; |
|
} |
|
if( $this->explode_radius[$i] > 0 ) { |
|
$fulledge = false; |
|
} |
|
} |
|
|
|
|
|
for($i=0; $i < count($data); ++$i, ++$idx ) { |
|
|
|
$da = $data[$i]/$sum * 2*M_PI; |
|
$this->StrokeFullSliceFrame($img,$xc,$yc,$a,$a+$da,$d,$h,$z,$edgecolor, |
|
$this->explode_radius[$i],$fulledge); |
|
$a += $da; |
|
} |
|
$img->PopColor(); |
|
} |
|
|
|
function StrokeFullSliceFrame($img,$xc,$yc,$sa,$ea,$w,$h,$z,$edgecolor,$exploderadius,$fulledge) { |
|
$step = 0.02; |
|
|
|
if( $exploderadius > 0 ) { |
|
$la = ($sa+$ea)/2; |
|
$xc += $exploderadius*cos($la); |
|
$yc -= $exploderadius*sin($la) * ($h/$w) ; |
|
|
|
} |
|
|
|
$p = array($xc,$yc,$xc+$w*cos($sa),$yc-$h*sin($sa)); |
|
|
|
for($a=$sa; $a < $ea; $a += $step ) { |
|
$p[] = $xc + $w*cos($a); |
|
$p[] = $yc - $h*sin($a); |
|
} |
|
|
|
$p[] = $xc+$w*cos($ea); |
|
$p[] = $yc-$h*sin($ea); |
|
$p[] = $xc; |
|
$p[] = $yc; |
|
|
|
$img->SetColor($edgecolor); |
|
$img->Polygon($p); |
|
|
|
// Unfortunately we can't really draw the full edge around the whole of |
|
// of the slice if any of the slices are exploded. The reason is that |
|
// this algorithm is to simply. There are cases where the edges will |
|
// "overwrite" other slices when they have been exploded. |
|
// Doing the full, proper 3D hidden lines stiff is actually quite |
|
// tricky. So for exploded pies we only draw the top edge. Not perfect |
|
// but the "real" solution is much more complicated. |
|
if( $fulledge && !( $sa > 0 && $sa < M_PI && $ea < M_PI) ) { |
|
|
|
if($sa < M_PI && $ea > M_PI) { |
|
$sa = M_PI; |
|
} |
|
|
|
if($sa < 2*M_PI && (($ea >= 2*M_PI) || ($ea > 0 && $ea < $sa ) ) ) { |
|
$ea = 2*M_PI; |
|
} |
|
|
|
if( $sa >= M_PI && $ea <= 2*M_PI ) { |
|
$p = array($xc + $w*cos($sa),$yc - $h*sin($sa), |
|
$xc + $w*cos($sa),$z + $yc - $h*sin($sa)); |
|
|
|
for($a=$sa+$step; $a < $ea; $a += $step ) { |
|
$p[] = $xc + $w*cos($a); |
|
$p[] = $z + $yc - $h*sin($a); |
|
} |
|
$p[] = $xc + $w*cos($ea); |
|
$p[] = $z + $yc - $h*sin($ea); |
|
$p[] = $xc + $w*cos($ea); |
|
$p[] = $yc - $h*sin($ea); |
|
$img->SetColor($edgecolor); |
|
$img->Polygon($p); |
|
} |
|
} |
|
} |
|
|
|
function Stroke($img,$aaoption=0) { |
|
$n = count($this->data); |
|
|
|
// If user hasn't set the colors use the theme array |
|
if( $this->setslicecolors==null ) { |
|
$colors = array_keys($img->rgb->rgb_table); |
|
sort($colors); |
|
$idx_a=$this->themearr[$this->theme]; |
|
$ca = array(); |
|
$m = count($idx_a); |
|
for($i=0; $i < $m; ++$i) { |
|
$ca[$i] = $colors[$idx_a[$i]]; |
|
} |
|
$ca = array_reverse(array_slice($ca,0,$n)); |
|
} |
|
else { |
|
$ca = $this->setslicecolors; |
|
} |
|
|
|
|
|
if( $this->posx <= 1 && $this->posx > 0 ) { |
|
$xc = round($this->posx*$img->width); |
|
} |
|
else { |
|
$xc = $this->posx ; |
|
} |
|
|
|
if( $this->posy <= 1 && $this->posy > 0 ) { |
|
$yc = round($this->posy*$img->height); |
|
} |
|
else { |
|
$yc = $this->posy ; |
|
} |
|
|
|
if( $this->radius <= 1 ) { |
|
$width = floor($this->radius*min($img->width,$img->height)); |
|
// Make sure that the pie doesn't overflow the image border |
|
// The 0.9 factor is simply an extra margin to leave some space |
|
// between the pie an the border of the image. |
|
$width = min($width,min($xc*0.9,($yc*90/$this->angle-$width/4)*0.9)); |
|
} |
|
else { |
|
$width = $this->radius * ($aaoption === 1 ? 2 : 1 ) ; |
|
} |
|
|
|
// Add a sanity check for width |
|
if( $width < 1 ) { |
|
JpGraphError::RaiseL(14007);//("Width for 3D Pie is 0. Specify a size > 0"); |
|
} |
|
|
|
// Establish a thickness. By default the thickness is a fifth of the |
|
// pie slice width (=pie radius) but since the perspective depends |
|
// on the inclination angle we use some heuristics to make the edge |
|
// slightly thicker the less the angle. |
|
|
|
// Has user specified an absolute thickness? In that case use |
|
// that instead |
|
|
|
if( $this->iThickness ) { |
|
$thick = $this->iThickness; |
|
$thick *= ($aaoption === 1 ? 2 : 1 ); |
|
} |
|
else { |
|
$thick = $width/12; |
|
} |
|
$a = $this->angle; |
|
|
|
if( $a <= 30 ) $thick *= 1.6; |
|
elseif( $a <= 40 ) $thick *= 1.4; |
|
elseif( $a <= 50 ) $thick *= 1.2; |
|
elseif( $a <= 60 ) $thick *= 1.0; |
|
elseif( $a <= 70 ) $thick *= 0.8; |
|
elseif( $a <= 80 ) $thick *= 0.7; |
|
else $thick *= 0.6; |
|
|
|
$thick = floor($thick); |
|
|
|
if( $this->explode_all ) { |
|
for($i=0; $i < $n; ++$i) |
|
$this->explode_radius[$i]=$this->explode_r; |
|
} |
|
|
|
$this->Pie3D($aaoption,$img,$this->data, $ca, $xc, $yc, $width, $this->angle, |
|
$thick, 0.65, $this->startangle, $this->edgecolor, $this->edgeweight); |
|
|
|
// Adjust title position |
|
if( $aaoption != 1 ) { |
|
$this->title->SetPos($xc,$yc-$this->title->GetFontHeight($img)-$width/2-$this->title->margin, "center","bottom"); |
|
$this->title->Stroke($img); |
|
} |
|
} |
|
|
|
//--------------- |
|
// PRIVATE METHODS |
|
|
|
// Position the labels of each slice |
|
function StrokeLabels($label,$img,$a,$xp,$yp,$z) { |
|
$this->value->halign="left"; |
|
$this->value->valign="top"; |
|
|
|
// Position the axis title. |
|
// dx, dy is the offset from the top left corner of the bounding box that sorrounds the text |
|
// that intersects with the extension of the corresponding axis. The code looks a little |
|
// bit messy but this is really the only way of having a reasonable position of the |
|
// axis titles. |
|
$this->value->ApplyFont($img); |
|
$h=$img->GetTextHeight($label); |
|
// For numeric values the format of the display value |
|
// must be taken into account |
|
if( is_numeric($label) ) { |
|
if( $label >= 0 ) { |
|
$w=$img->GetTextWidth(sprintf($this->value->format,$label)); |
|
} |
|
else { |
|
$w=$img->GetTextWidth(sprintf($this->value->negformat,$label)); |
|
} |
|
} |
|
else { |
|
$w=$img->GetTextWidth($label); |
|
} |
|
|
|
while( $a > 2*M_PI ) { |
|
$a -= 2*M_PI; |
|
} |
|
|
|
if( $a>=7*M_PI/4 || $a <= M_PI/4 ) $dx=0; |
|
if( $a>=M_PI/4 && $a <= 3*M_PI/4 ) $dx=($a-M_PI/4)*2/M_PI; |
|
if( $a>=3*M_PI/4 && $a <= 5*M_PI/4 ) $dx=1; |
|
if( $a>=5*M_PI/4 && $a <= 7*M_PI/4 ) $dx=(1-($a-M_PI*5/4)*2/M_PI); |
|
|
|
if( $a>=7*M_PI/4 ) $dy=(($a-M_PI)-3*M_PI/4)*2/M_PI; |
|
if( $a<=M_PI/4 ) $dy=(1-$a*2/M_PI); |
|
if( $a>=M_PI/4 && $a <= 3*M_PI/4 ) $dy=1; |
|
if( $a>=3*M_PI/4 && $a <= 5*M_PI/4 ) $dy=(1-($a-3*M_PI/4)*2/M_PI); |
|
if( $a>=5*M_PI/4 && $a <= 7*M_PI/4 ) $dy=0; |
|
|
|
$x = round($xp-$dx*$w); |
|
$y = round($yp-$dy*$h); |
|
|
|
// Mark anchor point for debugging |
|
/* |
|
$img->SetColor('red'); |
|
$img->Line($xp-10,$yp,$xp+10,$yp); |
|
$img->Line($xp,$yp-10,$xp,$yp+10); |
|
*/ |
|
|
|
$oldmargin = $this->value->margin; |
|
$this->value->margin=0; |
|
$this->value->Stroke($img,$label,$x,$y); |
|
$this->value->margin=$oldmargin; |
|
|
|
} |
|
} // Class |
|
|
|
/* EOF */ |
|
?>
|
|
|