1632 lines
56 KiB
PHP
1632 lines
56 KiB
PHP
<?php
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/*=======================================================================
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// File: JPGRAPH_PIE.PHP
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// Description: Pie plot extension for JpGraph
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// Created: 2001-02-14
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// Ver: $Id: jpgraph_pie.php 1926 2010-01-11 16:33:07Z 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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// Defines for PiePlot::SetLabelType()
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define("PIE_VALUE_ABS", 1);
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define("PIE_VALUE_PER", 0);
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define("PIE_VALUE_PERCENTAGE", 0);
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define("PIE_VALUE_ADJPERCENTAGE", 2);
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define("PIE_VALUE_ADJPER", 2);
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//===================================================
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// CLASS PiePlot
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// Description: Draws a pie plot
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//===================================================
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class PiePlot
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{
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public $posx=0.5;
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public $posy=0.5;
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public $is_using_plot_theme = false;
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public $theme="earth";
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protected $use_plot_theme_colors = false;
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protected $radius=0.3;
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protected $explode_radius=array();
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protected $explode_all=false;
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protected $explode_r=20;
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protected $labels=null;
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protected $legends=null;
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protected $csimtargets=null;
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protected $csimwintargets=null; // Array of targets for CSIM
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protected $csimareas=''; // Generated CSIM text
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protected $csimalts=null; // ALT tags for corresponding target
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protected $data=null;
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public $title;
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protected $startangle=0;
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protected $weight=1;
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protected $color="black";
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protected $legend_margin=6;
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protected $show_labels=true;
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protected $themearr = array(
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"earth" => array(136,34,40,45,46,62,63,134,74,10,120,136,141,168,180,77,209,218,346,395,89,430),
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"pastel" => array(27,415,128,59,66,79,105,110,42,147,152,230,236,240,331,337,405,38),
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"water" => array(8,370,24,40,335,56,213,237,268,14,326,387,10,388),
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"sand" => array(27,168,34,170,19,50,65,72,131,209,46,393));
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protected $setslicecolors=array();
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protected $labeltype=0; // Default to percentage
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protected $pie_border=true;
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protected $pie_interior_border=true;
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public $value;
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protected $ishadowcolor='';
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protected $ishadowdrop=4;
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protected $ilabelposadj=1;
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protected $legendcsimtargets = array();
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protected $legendcsimwintargets = array();
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protected $legendcsimalts = array();
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protected $adjusted_data = array();
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public $guideline = null;
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protected $guidelinemargin=10;
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protected $iShowGuideLineForSingle = false;
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protected $iGuideLineCurve = false;
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protected $iGuideVFactor=1.4;
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protected $iGuideLineRFactor=0.8;
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protected $la = array(); // Holds the exact angle for each label
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//---------------
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// CONSTRUCTOR
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public function __construct($data)
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{
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$this->data = array_reverse($data);
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$this->title = new Text("");
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$this->title->SetFont(FF_DEFAULT, FS_BOLD);
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$this->value = new DisplayValue();
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$this->value->Show();
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$this->value->SetFormat('%.1f%%');
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$this->guideline = new LineProperty();
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}
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//---------------
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// PUBLIC METHODS
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public function SetCenter($x, $y=0.5)
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{
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$this->posx = $x;
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$this->posy = $y;
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}
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// Enable guideline and set drwaing policy
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public function SetGuideLines($aFlg=true, $aCurved=true, $aAlways=false)
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{
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$this->guideline->Show($aFlg);
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$this->iShowGuideLineForSingle = $aAlways;
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$this->iGuideLineCurve = $aCurved;
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}
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// Adjuste the distance between labels and labels and pie
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public function SetGuideLinesAdjust($aVFactor, $aRFactor=0.8)
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{
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$this->iGuideVFactor=$aVFactor;
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$this->iGuideLineRFactor=$aRFactor;
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}
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public function SetColor($aColor)
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{
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$this->color = $aColor;
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}
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public function SetSliceColors($aColors)
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{
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$this->setslicecolors = $aColors;
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}
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public function SetShadow($aColor='darkgray', $aDropWidth=4)
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{
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$this->ishadowcolor = $aColor;
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$this->ishadowdrop = $aDropWidth;
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}
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public function SetCSIMTargets($aTargets, $aAlts='', $aWinTargets='')
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{
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$this->csimtargets=array_reverse($aTargets);
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if (is_array($aWinTargets)) {
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$this->csimwintargets=array_reverse($aWinTargets);
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}
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if (is_array($aAlts)) {
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$this->csimalts=array_reverse($aAlts);
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}
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}
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public function GetCSIMareas()
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{
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return $this->csimareas;
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}
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public function AddSliceToCSIM($i, $xc, $yc, $radius, $sa, $ea)
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{
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//Slice number, ellipse centre (x,y), height, width, start angle, end angle
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while ($sa > 2*M_PI) {
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$sa = $sa - 2*M_PI;
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}
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while ($ea > 2*M_PI) {
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$ea = $ea - 2*M_PI;
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}
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$sa = 2*M_PI - $sa;
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$ea = 2*M_PI - $ea;
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// Special case when we have only one slice since then both start and end
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// angle will be == 0
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if (abs($sa - $ea) < 0.0001) {
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$sa=2*M_PI;
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$ea=0;
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}
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//add coordinates of the centre to the map
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$xc = floor($xc);
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$yc=floor($yc);
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$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(($radius*cos($ea))+$xc);
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$yp = floor($yc-$radius*sin($ea));
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$coords.= ", $xp, $yp";
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//add coordinates every 0.2 radians
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$a=$ea+0.2;
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// If we cross the 360-limit with a slice we need to handle
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// the fact that end angle is smaller than start
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if ($sa < $ea) {
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while ($a <= 2*M_PI) {
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$xp = floor($radius*cos($a)+$xc);
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$yp = floor($yc-$radius*sin($a));
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$coords.= ", $xp, $yp";
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$a += 0.2;
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}
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$a -= 2*M_PI;
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}
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while ($a < $sa) {
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$xp = floor($radius*cos($a)+$xc);
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$yp = floor($yc-$radius*sin($a));
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$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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$xp = floor($radius*cos($sa)+$xc);
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$yp = floor($yc-$radius*sin($sa));
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$coords.= ", $xp, $yp";
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if (!empty($this->csimtargets[$i])) {
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$this->csimareas .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->csimtargets[$i]."\"";
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$tmp="";
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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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$this->csimareas .= " title=\"$tmp\" alt=\"$tmp\" ";
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}
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$this->csimareas .= " />\n";
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}
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}
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public function SetTheme($aTheme)
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{
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// JpGraphError::RaiseL(15012,$aTheme);
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// return;
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if (in_array($aTheme, array_keys($this->themearr))) {
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$this->theme = $aTheme;
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$this->is_using_plot_theme = true;
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} else {
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JpGraphError::RaiseL(15001, $aTheme);//("PiePLot::SetTheme() Unknown theme: $aTheme");
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}
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}
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public function ExplodeSlice($e, $radius=20)
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{
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if (! is_integer($e)) {
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JpGraphError::RaiseL(15002);
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}//('Argument to PiePlot::ExplodeSlice() must be an integer');
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$this->explode_radius[$e]=$radius;
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}
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public function ExplodeAll($radius=20)
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{
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$this->explode_all=true;
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$this->explode_r = $radius;
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}
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public function Explode($aExplodeArr)
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{
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if (!is_array($aExplodeArr)) {
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JpGraphError::RaiseL(15003);
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//("Argument to PiePlot::Explode() must be an array with integer distances.");
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}
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$this->explode_radius = $aExplodeArr;
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}
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public function SetStartAngle($aStart)
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{
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if ($aStart < 0 || $aStart > 360) {
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JpGraphError::RaiseL(15004);//('Slice start angle must be between 0 and 360 degrees.');
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}
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if ($aStart == 0) {
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$this->startangle = 0;
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} else {
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$this->startangle = 360-$aStart;
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$this->startangle *= M_PI/180;
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}
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}
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// Size in percentage
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public function SetSize($aSize)
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{
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if (($aSize>0 && $aSize<=0.5) || ($aSize>10 && $aSize<1000)) {
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$this->radius = $aSize;
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} else {
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JpGraphError::RaiseL(15006);
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}
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//("PiePlot::SetSize() Radius for pie must either be specified as a fraction [0, 0.5] of the size of the image or as an absolute size in pixels in the range [10, 1000]");
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}
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// Set label arrays
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public function SetLegends($aLegend)
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{
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$this->legends = $aLegend;
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}
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// Set text labels for slices
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public function SetLabels($aLabels, $aLblPosAdj="auto")
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{
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$this->labels = array_reverse($aLabels);
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$this->ilabelposadj=$aLblPosAdj;
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}
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public function SetLabelPos($aLblPosAdj)
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{
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$this->ilabelposadj=$aLblPosAdj;
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}
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// Should we display actual value or percentage?
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public function SetLabelType($aType)
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{
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if ($aType < 0 || $aType > 2) {
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JpGraphError::RaiseL(15008, $aType);
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}
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//("PiePlot::SetLabelType() Type for pie plots must be 0 or 1 (not $t).");
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$this->labeltype = $aType;
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}
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// Deprecated.
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public function SetValueType($aType)
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{
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$this->SetLabelType($aType);
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}
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// Should the circle around a pie plot be displayed
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public function ShowBorder($exterior=true, $interior=true)
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{
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$this->pie_border = $exterior;
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$this->pie_interior_border = $interior;
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}
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// Setup the legends
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public function Legend($graph)
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{
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$colors = array_keys($graph->img->rgb->rgb_table);
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sort($colors);
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$ta=$this->themearr[$this->theme];
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$n = count($this->data);
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if ($this->setslicecolors==null) {
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$numcolors=count($ta);
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if (class_exists('PiePlot3D', false) && ($this instanceof PiePlot3D)) {
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$ta = array_reverse(array_slice($ta, 0, $n));
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}
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} else {
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$this->setslicecolors = array_slice($this->setslicecolors, 0, $n);
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$numcolors=count($this->setslicecolors);
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if ($graph->pieaa && !($this instanceof PiePlot3D)) {
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$this->setslicecolors = array_reverse($this->setslicecolors);
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}
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}
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$sum=0;
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for ($i=0; $i < $n; ++$i) {
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$sum += $this->data[$i];
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}
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// Bail out with error if the sum is 0
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if ($sum==0) {
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JpGraphError::RaiseL(15009);
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}//("Illegal pie plot. Sum of all data is zero for Pie!");
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// Make sure we don't plot more values than data points
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// (in case the user added more legends than data points)
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$legendsCount = is_array($this->legends) ? count($this->legends) : 0;
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$n = min($legendsCount, count($this->data));
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if ($this->legends != "") {
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$this->legends = array_reverse(array_slice($this->legends, 0, $n));
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}
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for ($i=$n-1; $i >= 0; --$i) {
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$l = $this->legends[$i];
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// Replace possible format with actual values
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$count = is_array($this->csimalts) ? count($this->csimalts) : 0;
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if ($count > $i) {
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$fmt = $this->csimalts[$i];
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} else {
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$fmt = "%d"; // Deafult Alt if no other has been specified
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}
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if ($this->labeltype==0) {
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$l = sprintf($l, 100*$this->data[$i]/$sum);
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$alt = sprintf($fmt, $this->data[$i]);
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} elseif ($this->labeltype == 1) {
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$l = sprintf($l, $this->data[$i]);
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$alt = sprintf($fmt, $this->data[$i]);
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} else {
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$l = sprintf($l, $this->adjusted_data[$i]);
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$alt = sprintf($fmt, $this->adjusted_data[$i]);
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}
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if (empty($this->csimwintargets[$i])) {
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$wintarg = '';
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} else {
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$wintarg = $this->csimwintargets[$i];
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}
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if ($this->setslicecolors==null) {
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$csimtarget = isset($this->csimtargets[$i]) ? $this->csimtargets[$i] : null;
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$graph->legend->Add($l, $colors[$ta[$i%$numcolors]], "", 0, $csimtarget, $alt, $wintarg);
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} else {
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$csimtarget = isset($this->csimtargets[$i]) ? $this->csimtargets[$i] : null;
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$graph->legend->Add($l, $this->setslicecolors[$i%$numcolors], "", 0, $csimtarget, $alt, $wintarg);
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}
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}
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}
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// Adjust the rounded percetage value so that the sum of
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// of the pie slices are always 100%
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// Using the Hare/Niemeyer method
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public function AdjPercentage($aData, $aPrec=0)
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{
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$mul=100;
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if ($aPrec > 0 && $aPrec < 3) {
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if ($aPrec == 1) {
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$mul=1000;
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} else {
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$mul=10000;
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}
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}
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$tmp = array();
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$result = array();
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$quote_sum=0;
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$n = count($aData) ;
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for ($i=0, $sum=0; $i < $n; ++$i) {
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$sum+=$aData[$i];
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}
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foreach ($aData as $index => $value) {
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$tmp_percentage=$value/$sum*$mul;
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$result[$index]=floor($tmp_percentage);
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$tmp[$index]=$tmp_percentage-$result[$index];
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$quote_sum+=$result[$index];
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}
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if ($quote_sum == $mul) {
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if ($mul > 100) {
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$tmp = $mul / 100;
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for ($i=0; $i < $n; ++$i) {
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$result[$i] /= $tmp ;
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}
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}
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return $result;
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}
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arsort($tmp, SORT_NUMERIC);
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reset($tmp);
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for ($i=0; $i < $mul-$quote_sum; $i++) {
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$result[key($tmp)]++;
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next($tmp);
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}
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if ($mul > 100) {
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$tmp = $mul / 100;
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for ($i=0; $i < $n; ++$i) {
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$result[$i] /= $tmp ;
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}
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}
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return $result;
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}
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public function Stroke($img, $aaoption=0)
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{
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// aaoption is used to handle antialias
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// aaoption == 0 a normal pie
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// aaoption == 1 just the body
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// aaoption == 2 just the values
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// Explode scaling. If anti alias we scale the image
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// twice and we also need to scale the exploding distance
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$expscale = $aaoption === 1 ? 2 : 1;
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if ($this->labeltype == 2) {
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// Adjust the data so that it will add up to 100%
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$this->adjusted_data = $this->AdjPercentage($this->data);
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}
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if ($this->use_plot_theme_colors) {
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$this->setslicecolors = null;
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}
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$colors = array_keys($img->rgb->rgb_table);
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sort($colors);
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$ta=$this->themearr[$this->theme];
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$n = count($this->data);
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if ($this->setslicecolors==null) {
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$numcolors=count($ta);
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} else {
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// We need to create an array of colors as long as the data
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// since we need to reverse it to get the colors in the right order
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$numcolors=count($this->setslicecolors);
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$i = 2*$numcolors;
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while ($n > $i) {
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$this->setslicecolors = array_merge($this->setslicecolors, $this->setslicecolors);
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$i += $n;
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}
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$tt = array_slice($this->setslicecolors, 0, $n % $numcolors);
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$this->setslicecolors = array_merge($this->setslicecolors, $tt);
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$this->setslicecolors = array_reverse($this->setslicecolors);
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}
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// Draw the slices
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$sum=0;
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for ($i=0; $i < $n; ++$i) {
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$sum += $this->data[$i];
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}
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// Bail out with error if the sum is 0
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if ($sum==0) {
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JpGraphError::RaiseL(15009);//("Sum of all data is 0 for Pie.");
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}
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// Set up the pie-circle
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if ($this->radius <= 1) {
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$radius = floor($this->radius*min($img->width, $img->height));
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} else {
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$radius = $aaoption === 1 ? $this->radius*2 : $this->radius;
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}
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if ($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 ;
|
|
}
|
|
|
|
$n = count($this->data);
|
|
|
|
if ($this->explode_all) {
|
|
for ($i=0; $i < $n; ++$i) {
|
|
$this->explode_radius[$i]=$this->explode_r;
|
|
}
|
|
}
|
|
|
|
// If we have a shadow and not just drawing the labels
|
|
if ($this->ishadowcolor != "" && $aaoption !== 2) {
|
|
$accsum=0;
|
|
$angle2 = $this->startangle;
|
|
$img->SetColor($this->ishadowcolor);
|
|
for ($i=0; $sum > 0 && $i < $n; ++$i) {
|
|
$j = $n-$i-1;
|
|
$d = $this->data[$i];
|
|
$angle1 = $angle2;
|
|
$accsum += $d;
|
|
$angle2 = $this->startangle+2*M_PI*$accsum/$sum;
|
|
if (empty($this->explode_radius[$j])) {
|
|
$this->explode_radius[$j]=0;
|
|
}
|
|
|
|
if ($d < 0.00001) {
|
|
continue;
|
|
}
|
|
|
|
$la = 2*M_PI - (abs($angle2-$angle1)/2.0+$angle1);
|
|
|
|
$xcm = $xc + $this->explode_radius[$j]*cos($la)*$expscale;
|
|
$ycm = $yc - $this->explode_radius[$j]*sin($la)*$expscale;
|
|
|
|
$xcm += $this->ishadowdrop*$expscale;
|
|
$ycm += $this->ishadowdrop*$expscale;
|
|
|
|
$_sa = round($angle1*180/M_PI);
|
|
$_ea = round($angle2*180/M_PI);
|
|
|
|
// The CakeSlice method draws a full circle in case of start angle = end angle
|
|
// for pie slices we don't want this behaviour unless we only have one
|
|
// slice in the pie in case it is the wanted behaviour
|
|
if ($_ea-$_sa > 0.1 || $n==1) {
|
|
$img->CakeSlice(
|
|
$xcm,
|
|
$ycm,
|
|
$radius-1,
|
|
$radius-1,
|
|
$angle1*180/M_PI,
|
|
$angle2*180/M_PI,
|
|
$this->ishadowcolor
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------
|
|
// This is the main loop to draw each cake slice
|
|
//--------------------------------------------------------------------------------
|
|
|
|
// Set up the accumulated sum, start angle for first slice and border color
|
|
$accsum=0;
|
|
$angle2 = $this->startangle;
|
|
$img->SetColor($this->color);
|
|
|
|
// Loop though all the slices if there is a pie to draw (sum>0)
|
|
// There are n slices in total
|
|
for ($i=0; $sum>0 && $i < $n; ++$i) {
|
|
|
|
// $j is the actual index used for the slice
|
|
$j = $n-$i-1;
|
|
|
|
// Make sure we havea valid distance to explode the slice
|
|
if (empty($this->explode_radius[$j])) {
|
|
$this->explode_radius[$j]=0;
|
|
}
|
|
|
|
// The actual numeric value for the slice
|
|
$d = $this->data[$i];
|
|
|
|
$angle1 = $angle2;
|
|
|
|
// Accumlate the sum
|
|
$accsum += $d;
|
|
|
|
// The new angle when we add the "size" of this slice
|
|
// angle1 is then the start and angle2 the end of this slice
|
|
$angle2 = $this->NormAngle($this->startangle+2*M_PI*$accsum/$sum);
|
|
|
|
// We avoid some trouble by not allowing end angle to be 0, in that case
|
|
// we translate to 360
|
|
|
|
// la is used to hold the label angle, which is centered on the slice
|
|
if ($angle2 < 0.0001 && $angle1 > 0.0001) {
|
|
$this->la[$i] = 2*M_PI - (abs(2*M_PI-$angle1)/2.0+$angle1);
|
|
} elseif ($angle1 > $angle2) {
|
|
// The case where the slice crosses the 3 a'clock line
|
|
// Remember that the slices are counted clockwise and
|
|
// labels are counted counter clockwise so we need to revert with 2 PI
|
|
$this->la[$i] = 2*M_PI-$this->NormAngle($angle1 + ((2*M_PI - $angle1)+$angle2)/2);
|
|
} else {
|
|
$this->la[$i] = 2*M_PI - (abs($angle2-$angle1)/2.0+$angle1);
|
|
}
|
|
|
|
// Too avoid rounding problems we skip the slice if it is too small
|
|
if ($d < 0.00001) {
|
|
continue;
|
|
}
|
|
|
|
// If the user has specified an array of colors for each slice then use
|
|
// that a color otherwise use the theme array (ta) of colors
|
|
if ($this->setslicecolors==null) {
|
|
$slicecolor=$colors[$ta[$i%$numcolors]];
|
|
} else {
|
|
$slicecolor=$this->setslicecolors[$i%$numcolors];
|
|
}
|
|
|
|
// $_sa = round($angle1*180/M_PI);
|
|
// $_ea = round($angle2*180/M_PI);
|
|
// $_la = round($this->la[$i]*180/M_PI);
|
|
// echo "Slice#$i: ang1=$_sa , ang2=$_ea, la=$_la, color=$slicecolor<br>";
|
|
|
|
|
|
// If we have enabled antialias then we don't draw any border so
|
|
// make the bordedr color the same as the slice color
|
|
if ($this->pie_interior_border && $aaoption===0) {
|
|
$img->SetColor($this->color);
|
|
} else {
|
|
$img->SetColor($slicecolor);
|
|
}
|
|
$arccolor = $this->pie_border && $aaoption===0 ? $this->color : "";
|
|
|
|
// Calculate the x,y coordinates for the base of this slice taking
|
|
// the exploded distance into account. Here we use the mid angle as the
|
|
// ray of extension and we have the mid angle handy as it is also the
|
|
// label angle
|
|
$xcm = $xc + $this->explode_radius[$j]*cos($this->la[$i])*$expscale;
|
|
$ycm = $yc - $this->explode_radius[$j]*sin($this->la[$i])*$expscale;
|
|
|
|
// If we are not just drawing the labels then draw this cake slice
|
|
if ($aaoption !== 2) {
|
|
$_sa = round($angle1*180/M_PI);
|
|
$_ea = round($angle2*180/M_PI);
|
|
$_la = round($this->la[$i]*180/M_PI);
|
|
//echo "[$i] sa=$_sa, ea=$_ea, la[$i]=$_la, (color=$slicecolor)<br>";
|
|
|
|
// The CakeSlice method draws a full circle in case of start angle = end angle
|
|
// for pie slices we want this in case the slice have a value larger than 99% of the
|
|
// total sum
|
|
if (abs($_ea-$_sa) >= 1 || $d == $sum) {
|
|
$img->CakeSlice($xcm, $ycm, $radius-1, $radius-1, $_sa, $_ea, $slicecolor, $arccolor);
|
|
}
|
|
}
|
|
|
|
// If the CSIM is used then make sure we register a CSIM area for this slice as well
|
|
if ($this->csimtargets && $aaoption !== 1) {
|
|
$this->AddSliceToCSIM($i, $xcm, $ycm, $radius, $angle1, $angle2);
|
|
}
|
|
}
|
|
|
|
// Format the titles for each slice
|
|
if ($aaoption !== 2) {
|
|
for ($i=0; $i < $n; ++$i) {
|
|
if ($this->labeltype==0) {
|
|
if ($sum != 0) {
|
|
$l = 100.0*$this->data[$i]/$sum;
|
|
} else {
|
|
$l = 0.0;
|
|
}
|
|
} elseif ($this->labeltype==1) {
|
|
$l = $this->data[$i]*1.0;
|
|
} else {
|
|
$l = $this->adjusted_data[$i];
|
|
}
|
|
if (isset($this->labels[$i]) && is_string($this->labels[$i])) {
|
|
$this->labels[$i]=sprintf($this->labels[$i], $l);
|
|
} else {
|
|
$this->labels[$i]=$l;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($this->value->show && $aaoption !== 1) {
|
|
$this->StrokeAllLabels($img, $xc, $yc, $radius);
|
|
}
|
|
|
|
// Adjust title position
|
|
if ($aaoption !== 1) {
|
|
$this->title->SetPos(
|
|
$xc,
|
|
$yc-$this->title->GetFontHeight($img)-$radius-$this->title->margin,
|
|
"center",
|
|
"bottom"
|
|
);
|
|
$this->title->Stroke($img);
|
|
}
|
|
}
|
|
|
|
//---------------
|
|
// PRIVATE METHODS
|
|
|
|
public function NormAngle($a)
|
|
{
|
|
while ($a < 0) {
|
|
$a += 2*M_PI;
|
|
}
|
|
while ($a > 2*M_PI) {
|
|
$a -= 2*M_PI;
|
|
}
|
|
return $a;
|
|
}
|
|
|
|
public function Quadrant($a)
|
|
{
|
|
$a=$this->NormAngle($a);
|
|
if ($a > 0 && $a <= M_PI/2) {
|
|
return 0;
|
|
}
|
|
if ($a > M_PI/2 && $a <= M_PI) {
|
|
return 1;
|
|
}
|
|
if ($a > M_PI && $a <= 1.5*M_PI) {
|
|
return 2;
|
|
}
|
|
if ($a > 1.5*M_PI) {
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
public function StrokeGuideLabels($img, $xc, $yc, $radius)
|
|
{
|
|
$n = count($this->labels);
|
|
|
|
//-----------------------------------------------------------------------
|
|
// Step 1 of the algorithm is to construct a number of clusters
|
|
// a cluster is defined as all slices within the same quadrant (almost)
|
|
// that has an angular distance less than the treshold
|
|
//-----------------------------------------------------------------------
|
|
$tresh_hold=25 * M_PI/180; // 25 degrees difference to be in a cluster
|
|
$incluster=false; // flag if we are currently in a cluster or not
|
|
$clusters = array(); // array of clusters
|
|
$cidx=-1; // running cluster index
|
|
|
|
// Go through all the labels and construct a number of clusters
|
|
for ($i=0; $i < $n-1; ++$i) {
|
|
// Calc the angle distance between two consecutive slices
|
|
$a1=$this->la[$i];
|
|
$a2=$this->la[$i+1];
|
|
$q1 = $this->Quadrant($a1);
|
|
$q2 = $this->Quadrant($a2);
|
|
$diff = abs($a1-$a2);
|
|
if ($diff < $tresh_hold) {
|
|
if ($incluster) {
|
|
$clusters[$cidx][1]++;
|
|
// Each cluster can only cover one quadrant
|
|
// Do we cross a quadrant ( and must break the cluster)
|
|
if ($q1 != $q2) {
|
|
// If we cross a quadrant boundary we normally start a
|
|
// new cluster. However we need to take the 12'a clock
|
|
// and 6'a clock positions into a special consideration.
|
|
// Case 1: WE go from q=1 to q=2 if the last slice on
|
|
// the cluster for q=1 is close to 12'a clock and the
|
|
// first slice in q=0 is small we extend the previous
|
|
// cluster
|
|
if ($q1 == 1 && $q2 == 0 && $a2 > (90-15)*M_PI/180) {
|
|
if ($i < $n-2) {
|
|
$a3 = $this->la[$i+2];
|
|
// If there isn't a cluster coming up with the next-next slice
|
|
// we extend the previous cluster to cover this slice as well
|
|
if (abs($a3-$a2) >= $tresh_hold) {
|
|
$clusters[$cidx][1]++;
|
|
$i++;
|
|
}
|
|
}
|
|
} elseif ($q1 == 3 && $q2 == 2 && $a2 > (270-15)*M_PI/180) {
|
|
if ($i < $n-2) {
|
|
$a3 = $this->la[$i+2];
|
|
// If there isn't a cluster coming up with the next-next slice
|
|
// we extend the previous cluster to cover this slice as well
|
|
if (abs($a3-$a2) >= $tresh_hold) {
|
|
$clusters[$cidx][1]++;
|
|
$i++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($q1==2 && $q2==1 && $a2 > (180-15)*M_PI/180) {
|
|
$clusters[$cidx][1]++;
|
|
$i++;
|
|
}
|
|
|
|
$incluster = false;
|
|
}
|
|
} elseif ($q1 == $q2) {
|
|
$incluster = true;
|
|
// Now we have a special case for quadrant 0. If we previously
|
|
// have a cluster of one in quadrant 0 we just extend that
|
|
// cluster. If we don't do this then we risk that the label
|
|
// for the cluster of one will cross the guide-line
|
|
if ($q1 == 0 && $cidx > -1 &&
|
|
$clusters[$cidx][1] == 1 &&
|
|
$this->Quadrant($this->la[$clusters[$cidx][0]]) == 0) {
|
|
$clusters[$cidx][1]++;
|
|
} else {
|
|
$cidx++;
|
|
$clusters[$cidx][0] = $i;
|
|
$clusters[$cidx][1] = 1;
|
|
}
|
|
} else {
|
|
// Create a "cluster" of one since we are just crossing
|
|
// a quadrant
|
|
$cidx++;
|
|
$clusters[$cidx][0] = $i;
|
|
$clusters[$cidx][1] = 1;
|
|
}
|
|
} else {
|
|
if ($incluster) {
|
|
// Add the last slice
|
|
$clusters[$cidx][1]++;
|
|
$incluster = false;
|
|
} else { // Create a "cluster" of one
|
|
$cidx++;
|
|
$clusters[$cidx][0] = $i;
|
|
$clusters[$cidx][1] = 1;
|
|
}
|
|
}
|
|
}
|
|
// Handle the very last slice
|
|
if ($incluster) {
|
|
$clusters[$cidx][1]++;
|
|
} else { // Create a "cluster" of one
|
|
$cidx++;
|
|
$clusters[$cidx][0] = $i;
|
|
$clusters[$cidx][1] = 1;
|
|
}
|
|
|
|
/*
|
|
if( true ) {
|
|
// Debug printout in labels
|
|
for( $i=0; $i <= $cidx; ++$i ) {
|
|
for( $j=0; $j < $clusters[$i][1]; ++$j ) {
|
|
$a = $this->la[$clusters[$i][0]+$j];
|
|
$aa = round($a*180/M_PI);
|
|
$q = $this->Quadrant($a);
|
|
$this->labels[$clusters[$i][0]+$j]="[$q:$aa] $i:$j";
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
|
|
//-----------------------------------------------------------------------
|
|
// Step 2 of the algorithm is use the clusters and draw the labels
|
|
// and guidelines
|
|
//-----------------------------------------------------------------------
|
|
|
|
// We use the font height as the base factor for how far we need to
|
|
// spread the labels in the Y-direction.
|
|
$this->value->ApplyFont($img);
|
|
$fh = $img->GetFontHeight();
|
|
$origvstep=$fh*$this->iGuideVFactor;
|
|
$this->value->SetMargin(0);
|
|
|
|
// Number of clusters found
|
|
$nc = count($clusters);
|
|
|
|
// Walk through all the clusters
|
|
for ($i=0; $i < $nc; ++$i) {
|
|
|
|
// Start angle and number of slices in this cluster
|
|
$csize = $clusters[$i][1];
|
|
$a = $this->la[$clusters[$i][0]];
|
|
$q = $this->Quadrant($a);
|
|
|
|
// Now set up the start and end conditions to make sure that
|
|
// in each cluster we walk through the all the slices starting with the slice
|
|
// closest to the equator. Since all slices are numbered clockwise from "3'a clock"
|
|
// we have different conditions depending on in which quadrant the slice lies within.
|
|
if ($q == 0) {
|
|
$start = $csize-1;
|
|
$idx = $start;
|
|
$step = -1;
|
|
$vstep = -$origvstep;
|
|
} elseif ($q == 1) {
|
|
$start = 0;
|
|
$idx = $start;
|
|
$step = 1;
|
|
$vstep = -$origvstep;
|
|
} elseif ($q == 2) {
|
|
$start = $csize-1;
|
|
$idx = $start;
|
|
$step = -1;
|
|
$vstep = $origvstep;
|
|
} elseif ($q == 3) {
|
|
$start = 0;
|
|
$idx = $start;
|
|
$step = 1;
|
|
$vstep = $origvstep;
|
|
}
|
|
|
|
// Walk through all slices within this cluster
|
|
for ($j=0; $j < $csize; ++$j) {
|
|
// Now adjust the position of the labels in each cluster starting
|
|
// with the slice that is closest to the equator of the pie
|
|
$a = $this->la[$clusters[$i][0]+$idx];
|
|
|
|
// Guide line start in the center of the arc of the slice
|
|
$r = $radius+$this->explode_radius[$n-1-($clusters[$i][0]+$idx)];
|
|
$x = round($r*cos($a)+$xc);
|
|
$y = round($yc-$r*sin($a));
|
|
|
|
// The distance from the arc depends on chosen font and the "R-Factor"
|
|
$r += $fh*$this->iGuideLineRFactor;
|
|
|
|
// Should the labels be placed curved along the pie or in straight columns
|
|
// outside the pie?
|
|
if ($this->iGuideLineCurve) {
|
|
$xt=round($r*cos($a)+$xc);
|
|
}
|
|
|
|
// If this is the first slice in the cluster we need some first time
|
|
// proessing
|
|
if ($idx == $start) {
|
|
if (! $this->iGuideLineCurve) {
|
|
$xt=round($r*cos($a)+$xc);
|
|
}
|
|
$yt=round($yc-$r*sin($a));
|
|
|
|
// Some special consideration in case this cluster starts
|
|
// in quadrant 1 or 3 very close to the "equator" (< 20 degrees)
|
|
// and the previous clusters last slice is within the tolerance.
|
|
// In that case we add a font height to this labels Y-position
|
|
// so it doesn't collide with
|
|
// the slice in the previous cluster
|
|
$prevcluster = ($i + ($nc-1)) % $nc;
|
|
$previdx=$clusters[$prevcluster][0]+$clusters[$prevcluster][1]-1;
|
|
if ($q == 1 && $a > 160*M_PI/180) {
|
|
// Get the angle for the previous clusters last slice
|
|
$diff = abs($a-$this->la[$previdx]);
|
|
if ($diff < $tresh_hold) {
|
|
$yt -= $fh;
|
|
}
|
|
} elseif ($q == 3 && $a > 340*M_PI/180) {
|
|
// We need to subtract 360 to compare angle distance between
|
|
// q=0 and q=3
|
|
$diff = abs($a-$this->la[$previdx]-360*M_PI/180);
|
|
if ($diff < $tresh_hold) {
|
|
$yt += $fh;
|
|
}
|
|
}
|
|
} else {
|
|
// The step is at minimum $vstep but if the slices are relatively large
|
|
// we make sure that we add at least a step that corresponds to the vertical
|
|
// distance between the centers at the arc on the slice
|
|
$prev_a = $this->la[$clusters[$i][0]+($idx-$step)];
|
|
$dy = abs($radius*(sin($a)-sin($prev_a))*1.2);
|
|
if ($vstep > 0) {
|
|
$yt += max($vstep, $dy);
|
|
} else {
|
|
$yt += min($vstep, -$dy);
|
|
}
|
|
}
|
|
|
|
$label = $this->labels[$clusters[$i][0]+$idx];
|
|
|
|
if ($csize == 1) {
|
|
// A "meta" cluster with only one slice
|
|
$r = $radius+$this->explode_radius[$n-1-($clusters[$i][0]+$idx)];
|
|
$rr = $r+$img->GetFontHeight()/2;
|
|
$xt=round($rr*cos($a)+$xc);
|
|
$yt=round($yc-$rr*sin($a));
|
|
$this->StrokeLabel($label, $img, $xc, $yc, $a, $r);
|
|
if ($this->iShowGuideLineForSingle) {
|
|
$this->guideline->Stroke($img, $x, $y, $xt, $yt);
|
|
}
|
|
} else {
|
|
$this->guideline->Stroke($img, $x, $y, $xt, $yt);
|
|
if ($q==1 || $q==2) {
|
|
// Left side of Pie
|
|
$this->guideline->Stroke($img, $xt, $yt, $xt-$this->guidelinemargin, $yt);
|
|
$lbladj = -$this->guidelinemargin-5;
|
|
$this->value->halign = "right";
|
|
$this->value->valign = "center";
|
|
} else {
|
|
// Right side of pie
|
|
$this->guideline->Stroke($img, $xt, $yt, $xt+$this->guidelinemargin, $yt);
|
|
$lbladj = $this->guidelinemargin+5;
|
|
$this->value->halign = "left";
|
|
$this->value->valign = "center";
|
|
}
|
|
$this->value->Stroke($img, $label, $xt+$lbladj, $yt);
|
|
}
|
|
|
|
// Udate idx to point to next slice in the cluster to process
|
|
$idx += $step;
|
|
}
|
|
}
|
|
}
|
|
|
|
public function StrokeAllLabels($img, $xc, $yc, $radius)
|
|
{
|
|
// First normalize all angles for labels
|
|
$n = count($this->la);
|
|
for ($i=0; $i < $n; ++$i) {
|
|
$this->la[$i] = $this->NormAngle($this->la[$i]);
|
|
}
|
|
if ($this->guideline->iShow) {
|
|
$this->StrokeGuideLabels($img, $xc, $yc, $radius);
|
|
} else {
|
|
$n = count($this->labels);
|
|
for ($i=0; $i < $n; ++$i) {
|
|
$this->StrokeLabel(
|
|
$this->labels[$i],
|
|
$img,
|
|
$xc,
|
|
$yc,
|
|
$this->la[$i],
|
|
$radius + $this->explode_radius[$n-1-$i]
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Position the labels of each slice
|
|
public function StrokeLabel($label, $img, $xc, $yc, $a, $r)
|
|
{
|
|
|
|
// Default value
|
|
if ($this->ilabelposadj === 'auto') {
|
|
$this->ilabelposadj = 0.65;
|
|
}
|
|
|
|
// We position the values diferently depending on if they are inside
|
|
// or outside the pie
|
|
if ($this->ilabelposadj < 1.0) {
|
|
$this->value->SetAlign('center', 'center');
|
|
$this->value->margin = 0;
|
|
|
|
$xt=round($this->ilabelposadj*$r*cos($a)+$xc);
|
|
$yt=round($yc-$this->ilabelposadj*$r*sin($a));
|
|
|
|
$this->value->Stroke($img, $label, $xt, $yt);
|
|
} else {
|
|
$this->value->halign = "left";
|
|
$this->value->valign = "top";
|
|
$this->value->margin = 0;
|
|
|
|
// 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($label);
|
|
}
|
|
|
|
if ($this->ilabelposadj > 1.0 && $this->ilabelposadj < 5.0) {
|
|
$r *= $this->ilabelposadj;
|
|
}
|
|
|
|
$r += $img->GetFontHeight()/1.5;
|
|
|
|
$xt=round($r*cos($a)+$xc);
|
|
$yt=round($yc-$r*sin($a));
|
|
|
|
// Normalize angle
|
|
while ($a < 0) {
|
|
$a += 2*M_PI;
|
|
}
|
|
while ($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;
|
|
}
|
|
|
|
$this->value->Stroke($img, $label, $xt-$dx*$w, $yt-$dy*$h);
|
|
}
|
|
}
|
|
|
|
public function UsePlotThemeColors($flag = true)
|
|
{
|
|
$this->use_plot_theme_colors = $flag;
|
|
}
|
|
} // Class
|
|
|
|
|
|
//===================================================
|
|
// CLASS PiePlotC
|
|
// Description: Same as a normal pie plot but with a
|
|
// filled circle in the center
|
|
//===================================================
|
|
class PiePlotC extends PiePlot
|
|
{
|
|
private $imidsize=0.5; // Fraction of total width
|
|
private $imidcolor='white';
|
|
public $midtitle='';
|
|
private $middlecsimtarget='';
|
|
private $middlecsimwintarget='';
|
|
private $middlecsimalt='';
|
|
|
|
public function __construct($data, $aCenterTitle='')
|
|
{
|
|
parent::__construct($data);
|
|
$this->midtitle = new Text();
|
|
$this->midtitle->ParagraphAlign('center');
|
|
}
|
|
|
|
public function SetMid($aTitle, $aColor='white', $aSize=0.5)
|
|
{
|
|
$this->midtitle->Set($aTitle);
|
|
|
|
$this->imidsize = $aSize ;
|
|
$this->imidcolor = $aColor ;
|
|
}
|
|
|
|
public function SetMidTitle($aTitle)
|
|
{
|
|
$this->midtitle->Set($aTitle);
|
|
}
|
|
|
|
public function SetMidSize($aSize)
|
|
{
|
|
$this->imidsize = $aSize ;
|
|
}
|
|
|
|
public function SetMidColor($aColor)
|
|
{
|
|
$this->imidcolor = $aColor ;
|
|
}
|
|
|
|
public function SetMidCSIM($aTarget, $aAlt='', $aWinTarget='')
|
|
{
|
|
$this->middlecsimtarget = $aTarget;
|
|
$this->middlecsimwintarget = $aWinTarget;
|
|
$this->middlecsimalt = $aAlt;
|
|
}
|
|
|
|
public function AddSliceToCSIM($i, $xc, $yc, $radius, $sa, $ea)
|
|
{
|
|
//Slice number, ellipse centre (x,y), radius, start angle, end angle
|
|
while ($sa > 2*M_PI) {
|
|
$sa = $sa - 2*M_PI;
|
|
}
|
|
while ($ea > 2*M_PI) {
|
|
$ea = $ea - 2*M_PI;
|
|
}
|
|
|
|
$sa = 2*M_PI - $sa;
|
|
$ea = 2*M_PI - $ea;
|
|
|
|
// Special case when we have only one slice since then both start and end
|
|
// angle will be == 0
|
|
if (abs($sa - $ea) < 0.0001) {
|
|
$sa=2*M_PI;
|
|
$ea=0;
|
|
}
|
|
|
|
// Add inner circle first point
|
|
$xp = floor(($this->imidsize*$radius*cos($ea))+$xc);
|
|
$yp = floor($yc-($this->imidsize*$radius*sin($ea)));
|
|
$coords = "$xp, $yp";
|
|
|
|
//add coordinates every 0.25 radians
|
|
$a=$ea+0.25;
|
|
|
|
// If we cross the 360-limit with a slice we need to handle
|
|
// the fact that end angle is smaller than start
|
|
if ($sa < $ea) {
|
|
while ($a <= 2*M_PI) {
|
|
$xp = floor($radius*cos($a)+$xc);
|
|
$yp = floor($yc-$radius*sin($a));
|
|
$coords.= ", $xp, $yp";
|
|
$a += 0.25;
|
|
}
|
|
$a -= 2*M_PI;
|
|
}
|
|
|
|
while ($a < $sa) {
|
|
$xp = floor(($this->imidsize*$radius*cos($a)+$xc));
|
|
$yp = floor($yc-($this->imidsize*$radius*sin($a)));
|
|
$coords.= ", $xp, $yp";
|
|
$a += 0.25;
|
|
}
|
|
|
|
// Make sure we end at the last point
|
|
$xp = floor(($this->imidsize*$radius*cos($sa)+$xc));
|
|
$yp = floor($yc-($this->imidsize*$radius*sin($sa)));
|
|
$coords.= ", $xp, $yp";
|
|
|
|
// Straight line to outer circle
|
|
$xp = floor($radius*cos($sa)+$xc);
|
|
$yp = floor($yc-$radius*sin($sa));
|
|
$coords.= ", $xp, $yp";
|
|
|
|
//add coordinates every 0.25 radians
|
|
$a=$sa - 0.25;
|
|
while ($a > $ea) {
|
|
$xp = floor($radius*cos($a)+$xc);
|
|
$yp = floor($yc-$radius*sin($a));
|
|
$coords.= ", $xp, $yp";
|
|
$a -= 0.25;
|
|
}
|
|
|
|
//Add the last point on the arc
|
|
$xp = floor($radius*cos($ea)+$xc);
|
|
$yp = floor($yc-$radius*sin($ea));
|
|
$coords.= ", $xp, $yp";
|
|
|
|
// Close the arc
|
|
$xp = floor(($this->imidsize*$radius*cos($ea))+$xc);
|
|
$yp = floor($yc-($this->imidsize*$radius*sin($ea)));
|
|
$coords .= ", $xp, $yp";
|
|
|
|
if (!empty($this->csimtargets[$i])) {
|
|
$this->csimareas .= "<area shape=\"poly\" coords=\"$coords\" href=\"".
|
|
$this->csimtargets[$i]."\"";
|
|
if (!empty($this->csimwintargets[$i])) {
|
|
$this->csimareas .= " target=\"".$this->csimwintargets[$i]."\" ";
|
|
}
|
|
if (!empty($this->csimalts[$i])) {
|
|
$tmp=sprintf($this->csimalts[$i], $this->data[$i]);
|
|
$this->csimareas .= " title=\"$tmp\" alt=\"$tmp\" ";
|
|
}
|
|
$this->csimareas .= " />\n";
|
|
}
|
|
}
|
|
|
|
|
|
public function Stroke($img, $aaoption=0)
|
|
{
|
|
|
|
// Stroke the pie but don't stroke values
|
|
$tmp = $this->value->show;
|
|
$this->value->show = false;
|
|
parent::Stroke($img, $aaoption);
|
|
$this->value->show = $tmp;
|
|
|
|
$xc = round($this->posx*$img->width);
|
|
$yc = round($this->posy*$img->height);
|
|
|
|
$radius = floor($this->radius * min($img->width, $img->height)) ;
|
|
|
|
|
|
if ($this->imidsize > 0 && $aaoption !== 2) {
|
|
if ($this->ishadowcolor != "") {
|
|
$img->SetColor($this->ishadowcolor);
|
|
$img->FilledCircle(
|
|
$xc+$this->ishadowdrop,
|
|
$yc+$this->ishadowdrop,
|
|
round($radius*$this->imidsize)
|
|
);
|
|
}
|
|
|
|
$img->SetColor($this->imidcolor);
|
|
$img->FilledCircle($xc, $yc, round($radius*$this->imidsize));
|
|
|
|
if ($this->pie_border && $aaoption === 0) {
|
|
$img->SetColor($this->color);
|
|
$img->Circle($xc, $yc, round($radius*$this->imidsize));
|
|
}
|
|
|
|
if (!empty($this->middlecsimtarget)) {
|
|
$this->AddMiddleCSIM($xc, $yc, round($radius*$this->imidsize));
|
|
}
|
|
}
|
|
|
|
if ($this->value->show && $aaoption !== 1) {
|
|
$this->StrokeAllLabels($img, $xc, $yc, $radius);
|
|
$this->midtitle->SetPos($xc, $yc, 'center', 'center');
|
|
$this->midtitle->Stroke($img);
|
|
}
|
|
}
|
|
|
|
public function AddMiddleCSIM($xc, $yc, $r)
|
|
{
|
|
$xc=round($xc);
|
|
$yc=round($yc);
|
|
$r=round($r);
|
|
$this->csimareas .= "<area shape=\"circle\" coords=\"$xc,$yc,$r\" href=\"".
|
|
$this->middlecsimtarget."\"";
|
|
if (!empty($this->middlecsimwintarget)) {
|
|
$this->csimareas .= " target=\"".$this->middlecsimwintarget."\"";
|
|
}
|
|
if (!empty($this->middlecsimalt)) {
|
|
$tmp = $this->middlecsimalt;
|
|
$this->csimareas .= " title=\"$tmp\" alt=\"$tmp\" ";
|
|
}
|
|
$this->csimareas .= " />\n";
|
|
}
|
|
|
|
public function StrokeLabel($label, $img, $xc, $yc, $a, $r)
|
|
{
|
|
if ($this->ilabelposadj === 'auto') {
|
|
$this->ilabelposadj = (1-$this->imidsize)/2+$this->imidsize;
|
|
}
|
|
|
|
parent::StrokeLabel($label, $img, $xc, $yc, $a, $r);
|
|
}
|
|
}
|
|
|
|
|
|
//===================================================
|
|
// CLASS PieGraph
|
|
// Description:
|
|
//===================================================
|
|
class PieGraph extends Graph
|
|
{
|
|
private $posx;
|
|
private $posy;
|
|
private $radius;
|
|
private $legends=array();
|
|
public $plots=array();
|
|
public $pieaa = false ;
|
|
//---------------
|
|
// CONSTRUCTOR
|
|
public function __construct($width=300, $height=200, $cachedName="", $timeout=0, $inline=1)
|
|
{
|
|
parent::__construct($width, $height, $cachedName, $timeout, $inline);
|
|
$this->posx=$width/2;
|
|
$this->posy=$height/2;
|
|
$this->SetColor(array(255,255,255));
|
|
|
|
if ($this->graph_theme) {
|
|
$this->graph_theme->ApplyGraph($this);
|
|
}
|
|
}
|
|
|
|
//---------------
|
|
// PUBLIC METHODS
|
|
public function Add($aObj)
|
|
{
|
|
if (is_array($aObj) && count($aObj) > 0) {
|
|
$cl = $aObj[0];
|
|
} else {
|
|
$cl = $aObj;
|
|
}
|
|
|
|
if ($cl instanceof Text) {
|
|
$this->AddText($aObj);
|
|
} elseif (class_exists('IconPlot', false) && ($cl instanceof IconPlot)) {
|
|
$this->AddIcon($aObj);
|
|
} else {
|
|
if (is_array($aObj)) {
|
|
$n = count($aObj);
|
|
for ($i=0; $i < $n; ++$i) {
|
|
//if ($aObj[$i]->theme) {
|
|
// $this->ClearTheme();
|
|
//}
|
|
$this->plots[] = $aObj[$i];
|
|
}
|
|
} else {
|
|
//if ($aObj->theme) {
|
|
// $this->ClearTheme();
|
|
//}
|
|
$this->plots[] = $aObj;
|
|
}
|
|
}
|
|
|
|
if ($this->graph_theme) {
|
|
$this->graph_theme->SetupPlot($aObj);
|
|
if ($aObj->is_using_plot_theme) {
|
|
$aObj->UsePlotThemeColors();
|
|
}
|
|
}
|
|
}
|
|
|
|
public function SetAntiAliasing($aFlg=true)
|
|
{
|
|
$this->pieaa = $aFlg;
|
|
}
|
|
|
|
public function SetColor($c)
|
|
{
|
|
$this->SetMarginColor($c);
|
|
}
|
|
|
|
|
|
public function DisplayCSIMAreas()
|
|
{
|
|
$csim="";
|
|
foreach ($this->plots as $p) {
|
|
$csim .= $p->GetCSIMareas();
|
|
}
|
|
|
|
$csim.= $this->legend->GetCSIMareas();
|
|
if (preg_match_all("/area shape=\"(\w+)\" coords=\"([0-9\, ]+)\"/", $csim, $coords)) {
|
|
$this->img->SetColor($this->csimcolor);
|
|
$n = count($coords[0]);
|
|
for ($i=0; $i < $n; $i++) {
|
|
if ($coords[1][$i]=="poly") {
|
|
preg_match_all('/\s*([0-9]+)\s*,\s*([0-9]+)\s*,*/', $coords[2][$i], $pts);
|
|
$this->img->SetStartPoint($pts[1][count($pts[0])-1], $pts[2][count($pts[0])-1]);
|
|
$m = count($pts[0]);
|
|
for ($j=0; $j < $m; $j++) {
|
|
$this->img->LineTo($pts[1][$j], $pts[2][$j]);
|
|
}
|
|
} elseif ($coords[1][$i]=="rect") {
|
|
$pts = preg_split('/,/', $coords[2][$i]);
|
|
$this->img->SetStartPoint($pts[0], $pts[1]);
|
|
$this->img->LineTo($pts[2], $pts[1]);
|
|
$this->img->LineTo($pts[2], $pts[3]);
|
|
$this->img->LineTo($pts[0], $pts[3]);
|
|
$this->img->LineTo($pts[0], $pts[1]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Method description
|
|
public function Stroke($aStrokeFileName="")
|
|
{
|
|
|
|
// If the filename is the predefined value = '_csim_special_'
|
|
// we assume that the call to stroke only needs to do enough
|
|
// to correctly generate the CSIM maps.
|
|
// We use this variable to skip things we don't strictly need
|
|
// to do to generate the image map to improve performance
|
|
// a best we can. Therefor you will see a lot of tests !$_csim in the
|
|
// code below.
|
|
$_csim = ($aStrokeFileName===_CSIM_SPECIALFILE);
|
|
|
|
// If we are called the second time (perhaps the user has called GetHTMLImageMap()
|
|
// himself then the legends have alsready been populated once in order to get the
|
|
// CSIM coordinats. Since we do not want the legends to be populated a second time
|
|
// we clear the legends
|
|
$this->legend->Clear();
|
|
|
|
// We need to know if we have stroked the plot in the
|
|
// GetCSIMareas. Otherwise the CSIM hasn't been generated
|
|
// and in the case of GetCSIM called before stroke to generate
|
|
// CSIM without storing an image to disk GetCSIM must call Stroke.
|
|
$this->iHasStroked = true;
|
|
|
|
$n = count($this->plots);
|
|
|
|
if ($this->pieaa) {
|
|
if (!$_csim) {
|
|
if ($this->background_image != "") {
|
|
$this->StrokeFrameBackground();
|
|
} else {
|
|
$this->StrokeFrame();
|
|
$this->StrokeBackgroundGrad();
|
|
}
|
|
}
|
|
|
|
|
|
$w = $this->img->width;
|
|
$h = $this->img->height;
|
|
$oldimg = $this->img->img;
|
|
|
|
$this->img->CreateImgCanvas(2*$w, 2*$h);
|
|
|
|
$this->img->SetColor($this->margin_color);
|
|
$this->img->FilledRectangle(0, 0, 2*$w-1, 2*$h-1);
|
|
|
|
// Make all icons *2 i size since we will be scaling down the
|
|
// imahe to do the anti aliasing
|
|
$ni = count($this->iIcons);
|
|
for ($i=0; $i < $ni; ++$i) {
|
|
$this->iIcons[$i]->iScale *= 2 ;
|
|
if ($this->iIcons[$i]->iX > 1) {
|
|
$this->iIcons[$i]->iX *= 2 ;
|
|
}
|
|
if ($this->iIcons[$i]->iY > 1) {
|
|
$this->iIcons[$i]->iY *= 2 ;
|
|
}
|
|
}
|
|
|
|
$this->StrokeIcons();
|
|
|
|
for ($i=0; $i < $n; ++$i) {
|
|
if ($this->plots[$i]->posx > 1) {
|
|
$this->plots[$i]->posx *= 2 ;
|
|
}
|
|
if ($this->plots[$i]->posy > 1) {
|
|
$this->plots[$i]->posy *= 2 ;
|
|
}
|
|
|
|
$this->plots[$i]->Stroke($this->img, 1);
|
|
|
|
if ($this->plots[$i]->posx > 1) {
|
|
$this->plots[$i]->posx /= 2 ;
|
|
}
|
|
if ($this->plots[$i]->posy > 1) {
|
|
$this->plots[$i]->posy /= 2 ;
|
|
}
|
|
}
|
|
|
|
$indent = $this->doframe ? ($this->frame_weight + ($this->doshadow ? $this->shadow_width : 0)) : 0 ;
|
|
$indent += $this->framebevel ? $this->framebeveldepth + 1 : 0 ;
|
|
$this->img->CopyCanvasH(
|
|
$oldimg,
|
|
$this->img->img,
|
|
$indent,
|
|
$indent,
|
|
$indent,
|
|
$indent,
|
|
$w-2*$indent,
|
|
$h-2*$indent,
|
|
2*($w-$indent),
|
|
2*($h-$indent)
|
|
);
|
|
|
|
$this->img->img = $oldimg ;
|
|
$this->img->width = $w ;
|
|
$this->img->height = $h ;
|
|
|
|
for ($i=0; $i < $n; ++$i) {
|
|
$this->plots[$i]->Stroke($this->img, 2); // Stroke labels
|
|
$this->plots[$i]->Legend($this);
|
|
}
|
|
} else {
|
|
if (!$_csim) {
|
|
if ($this->background_image != "") {
|
|
$this->StrokeFrameBackground();
|
|
} else {
|
|
$this->StrokeFrame();
|
|
$this->StrokeBackgroundGrad();
|
|
}
|
|
}
|
|
|
|
$this->StrokeIcons();
|
|
|
|
for ($i=0; $i < $n; ++$i) {
|
|
$this->plots[$i]->Stroke($this->img);
|
|
$this->plots[$i]->Legend($this);
|
|
}
|
|
}
|
|
|
|
$this->legend->Stroke($this->img);
|
|
$this->footer->Stroke($this->img);
|
|
$this->StrokeTitles();
|
|
|
|
if (!$_csim) {
|
|
|
|
// Stroke texts
|
|
if ($this->texts != null) {
|
|
$n = count($this->texts);
|
|
for ($i=0; $i < $n; ++$i) {
|
|
$this->texts[$i]->Stroke($this->img);
|
|
}
|
|
}
|
|
|
|
if (_JPG_DEBUG) {
|
|
$this->DisplayCSIMAreas();
|
|
}
|
|
|
|
// Should we do any final image transformation
|
|
if ($this->iImgTrans) {
|
|
if (!class_exists('ImgTrans', false)) {
|
|
require_once('jpgraph_imgtrans.php');
|
|
//JpGraphError::Raise('In order to use image transformation you must include the file jpgraph_imgtrans.php in your script.');
|
|
}
|
|
|
|
$tform = new ImgTrans($this->img->img);
|
|
$this->img->img = $tform->Skew3D(
|
|
$this->iImgTransHorizon,
|
|
$this->iImgTransSkewDist,
|
|
$this->iImgTransDirection,
|
|
$this->iImgTransHighQ,
|
|
$this->iImgTransMinSize,
|
|
$this->iImgTransFillColor,
|
|
$this->iImgTransBorder
|
|
);
|
|
}
|
|
|
|
|
|
// If the filename is given as the special "__handle"
|
|
// then the image handler is returned and the image is NOT
|
|
// streamed back
|
|
if ($aStrokeFileName == _IMG_HANDLER) {
|
|
return $this->img->img;
|
|
} else {
|
|
// Finally stream the generated picture
|
|
$this->cache->PutAndStream(
|
|
$this->img,
|
|
$this->cache_name,
|
|
$this->inline,
|
|
$aStrokeFileName
|
|
);
|
|
}
|
|
}
|
|
}
|
|
} // Class
|
|
|
|
/* EOF */
|