1053 lines
33 KiB
PHP
1053 lines
33 KiB
PHP
<?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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{
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private $labelhintcolor="red";
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private $showlabelhint=true;
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private $angle=50;
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private $edgecolor="";
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private $edgeweight=1;
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private $iThickness=false;
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//---------------
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// CONSTRUCTOR
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public function __construct($data)
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{
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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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public function SetLegends($aLegend)
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{
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$this->legends = array_reverse(array_slice($aLegend, 0, count($this->data)));
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}
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public function SetSliceColors($aColors)
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{
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$this->setslicecolors = $aColors;
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}
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public function Legend($aGraph)
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{
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parent::Legend($aGraph);
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$aGraph->legend->txtcol = array_reverse($aGraph->legend->txtcol);
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}
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public function SetCSIMTargets($aTargets, $aAlts='', $aWinTargets='')
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{
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$this->csimtargets = $aTargets;
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$this->csimwintargets = $aWinTargets;
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$this->csimalts = $aAlts;
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}
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// Should the slices be separated by a line? If color is specified as "" no line
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// will be used to separate pie slices.
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public function SetEdge($aColor='black', $aWeight=1)
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{
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$this->edgecolor = $aColor;
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$this->edgeweight = $aWeight;
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}
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// Specify projection angle for 3D in degrees
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// Must be between 20 and 70 degrees
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public function SetAngle($a)
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{
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if ($a<5 || $a>90) {
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JpGraphError::RaiseL(14002);
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//("PiePlot3D::SetAngle() 3D Pie projection angle must be between 5 and 85 degrees.");
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} else {
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$this->angle = $a;
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}
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}
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public function Add3DSliceToCSIM($i, $xc, $yc, $height, $width, $thick, $sa, $ea)
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{ //Slice number, ellipse centre (x,y), height, width, start angle, end angle
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$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, $yp";
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//If on the front half, add the thickness offset
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if ($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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public function SetLabels($aLabels, $aLblPosAdj="auto")
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{
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$this->labels = $aLabels;
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$this->ilabelposadj=$aLblPosAdj;
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}
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// Distance from the pie to the labels
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public function SetLabelMargin($m)
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{
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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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public function ShowLabelHint($f=true)
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{
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$this->showlabelhint=$f;
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}
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// Set color of hint line to label for each slice
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public function SetLabelHintColor($c)
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{
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$this->labelhintcolor=$c;
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}
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public function SetHeight($aHeight)
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{
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$this->iThickness = $aHeight;
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}
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// Normalize Angle between 0-360
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public function NormAngle($a)
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{
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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) {
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$a -= 360;
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}
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} else {
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while ($a < 0) {
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$a += 360;
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}
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}
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if ($a < 0) {
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$a = 360 + $a;
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}
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if ($a == 360) {
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$a=0;
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}
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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 $z
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public function Pie3DSlice($img, $xc, $yc, $w, $h, $sa, $ea, $z, $fillcolor, $shadow=0.65)
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{
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// Due to the way the 3D Pie algorithm works we are
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// guaranteed that any slice we get into this method
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// belongs to either the left or right side of the
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// pie ellipse. Hence, no slice will cross 90 or 270
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// point.
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if (($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[] = $yc;
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} else {
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$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[] = $yc;
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}
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} elseif ($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[] = $yc;
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} elseif ($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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} 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[] = $yc;
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}
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} else { // sa > 0 && ea < 90
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$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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public function SetStartAngle($aStart)
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{
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if ($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 = $aStart;
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}
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// Draw a 3D Pie
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public function Pie3D(
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$aaoption,
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$img,
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$data,
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$colors,
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$xc,
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$yc,
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$d,
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$angle,
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$z,
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$shadow=0.65,
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$startangle=0,
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$edgecolor="",
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$edgeweight=1
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) {
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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 ($sum==0) {
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return;
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}
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if ($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]/$sum * 360;
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if (empty($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 );
|
|
$adjexplode[$idx] = $explode;
|
|
$labeldata[$i] = array($la,$explode[0],$explode[1]);
|
|
$originalangles[$i] = array($a,$a+$da);
|
|
|
|
$ne = $this->NormAngle($a+$da);
|
|
if ($da <= 180) {
|
|
// If the slice size is <= 90 it can at maximum cut across
|
|
// one boundary (either 90 or 270) where it needs to be split
|
|
$split=-1; // no split
|
|
if (($da<=90 && ($a <= 90 && $ne > 90)) ||
|
|
(($da <= 180 && $da >90) && (($a < 90 || $a >= 270) && $ne > 90))) {
|
|
$split = 90;
|
|
} elseif (($da<=90 && ($a <= 270 && $ne > 270)) ||
|
|
(($da<=180 && $da>90) && ($a >= 90 && $a < 270 && ($a+$da) > 270))) {
|
|
$split = 270;
|
|
}
|
|
if ($split > 0) { // split in two
|
|
$angles[$idx] = array($a,$split);
|
|
$adjcolors[$idx] = $colors[$i % $numcolors];
|
|
$adjexplode[$idx] = $explode;
|
|
$angles[++$idx] = array($split,$ne);
|
|
$adjcolors[$idx] = $colors[$i % $numcolors];
|
|
$adjexplode[$idx] = $explode;
|
|
} else { // no split
|
|
$angles[$idx] = array($a,$ne);
|
|
$adjcolors[$idx] = $colors[$i % $numcolors];
|
|
$adjexplode[$idx] = $explode;
|
|
}
|
|
} else {
|
|
// da>180
|
|
// Slice may, depending on position, cross one or two
|
|
// bonudaries
|
|
|
|
if ($a < 90) {
|
|
$split = 90;
|
|
} elseif ($a <= 270) {
|
|
$split = 270;
|
|
} else {
|
|
$split = 90;
|
|
}
|
|
|
|
$angles[$idx] = array($a,$split);
|
|
$adjcolors[$idx] = $colors[$i % $numcolors];
|
|
$adjexplode[$idx] = $explode;
|
|
//if( $a+$da > 360-$split ) {
|
|
// For slices larger than 270 degrees we might cross
|
|
// another boundary as well. This means that we must
|
|
// split the slice further. The comparison gets a little
|
|
// bit complicated since we must take into accound that
|
|
// a pie might have a startangle >0 and hence a slice might
|
|
// wrap around the 0 angle.
|
|
// Three cases:
|
|
// a) Slice starts before 90 and hence gets a split=90, but
|
|
// we must also check if we need to split at 270
|
|
// b) Slice starts after 90 but before 270 and slices
|
|
// crosses 90 (after a wrap around of 0)
|
|
// c) If start is > 270 (hence the firstr split is at 90)
|
|
// and the slice is so large that it goes all the way
|
|
// around 270.
|
|
if (($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;
|
|
}
|
|
$img->PopColor();
|
|
}
|
|
|
|
public function StrokeFullSliceFrame($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);
|
|
}
|
|
}
|
|
}
|
|
|
|
public 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
|
|
public 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 */
|