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845 lines
23 KiB
PHP
845 lines
23 KiB
PHP
<?php
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/*=======================================================================
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// File: JPGRAPH_POLAR.PHP
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// Description: Polar plot extension for JpGraph
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// Created: 2003-02-02
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// Author: Johan Persson (johanp@aditus.nu)
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// Ver: $Id: jpgraph_polar.php,v 1.1 2006/07/07 13:37:14 powles Exp $
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//
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// Copyright (c) Aditus Consulting. All rights reserved.
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//========================================================================
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*/
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require_once ('jpgraph_plotmark.inc');
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require_once "jpgraph_log.php";
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DEFINE('POLAR_360',1);
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DEFINE('POLAR_180',2);
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//
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// Note. Don't attempt to make sense of this code.
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// In order not to have to be able to inherit the scaling code
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// from the main graph package we have had to make some "tricks" since
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// the original scaling and axis was not designed to do what is
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// required here.
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// There were two option. 1: Re-implement everything and get a clean design
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// and 2: do some "small" trickery and be able to inherit most of
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// the functionlity from the main graph package.
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// We choose 2: here in order to save some time.
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//
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//--------------------------------------------------------------------------
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// class PolarPlot
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//--------------------------------------------------------------------------
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class PolarPlot {
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var $numpoints=0;
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var $iColor='navy',$iFillColor='';
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var $iLineWeight=1;
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var $coord=null;
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var $legendcsimtarget='';
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var $legendcsimalt='';
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var $legend="";
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var $csimtargets=array(); // Array of targets for CSIM
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var $csimareas=""; // Resultant CSIM area tags
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var $csimalts=null; // ALT:s for corresponding target
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var $line_style='solid',$mark;
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function PolarPlot($aData) {
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$n = count($aData);
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if( $n & 1 ) {
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JpGraphError::RaiseL(17001);
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//('Polar plots must have an even number of data point. Each data point is a tuple (angle,radius).');
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}
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$this->numpoints = $n/2;
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$this->coord = $aData;
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$this->mark = new PlotMark();
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}
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function SetWeight($aWeight) {
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$this->iLineWeight = $aWeight;
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}
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function SetColor($aColor){
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$this->iColor = $aColor;
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}
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function SetFillColor($aColor){
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$this->iFillColor = $aColor;
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}
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function Max() {
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$m = $this->coord[1];
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$i=1;
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while( $i < $this->numpoints ) {
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$m = max($m,$this->coord[2*$i+1]);
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++$i;
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}
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return $m;
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}
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// Set href targets for CSIM
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function SetCSIMTargets($aTargets,$aAlts=null) {
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$this->csimtargets=$aTargets;
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$this->csimalts=$aAlts;
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}
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// Get all created areas
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function GetCSIMareas() {
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return $this->csimareas;
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}
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function SetLegend($aLegend,$aCSIM="",$aCSIMAlt="") {
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$this->legend = $aLegend;
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$this->legendcsimtarget = $aCSIM;
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$this->legendcsimalt = $aCSIMAlt;
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}
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// Private methods
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function Legend(&$aGraph) {
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$color = $this->iColor ;
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if( $this->legend != "" ) {
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if( $this->iFillColor!='' ) {
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$color = $this->iFillColor;
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$aGraph->legend->Add($this->legend,$color,$this->mark,0,
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$this->legendcsimtarget,$this->legendcsimalt);
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}
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else {
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$aGraph->legend->Add($this->legend,$color,$this->mark,$this->line_style,
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$this->legendcsimtarget,$this->legendcsimalt);
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}
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}
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}
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function Stroke(&$img,$scale) {
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$i=0;
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$p=array();
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$this->csimareas='';
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while($i < $this->numpoints) {
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list($x1,$y1) = $scale->PTranslate($this->coord[2*$i],$this->coord[2*$i+1]);
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$p[2*$i] = $x1;
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$p[2*$i+1] = $y1;
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if( isset($this->csimtargets[$i]) ) {
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$this->mark->SetCSIMTarget($this->csimtargets[$i]);
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$this->mark->SetCSIMAlt($this->csimalts[$i]);
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$this->mark->SetCSIMAltVal($this->coord[2*$i], $this->coord[2*$i+1]);
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$this->mark->Stroke($img,$x1,$y1);
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$this->csimareas .= $this->mark->GetCSIMAreas();
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}
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else
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$this->mark->Stroke($img,$x1,$y1);
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++$i;
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}
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if( $this->iFillColor != '' ) {
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$img->SetColor($this->iFillColor);
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$img->FilledPolygon($p);
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}
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$img->SetLineWeight($this->iLineWeight);
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$img->SetColor($this->iColor);
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$img->Polygon($p,$this->iFillColor!='');
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}
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}
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//--------------------------------------------------------------------------
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// class PolarAxis
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//--------------------------------------------------------------------------
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class PolarAxis extends Axis {
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var $angle_step=15,$angle_color='lightgray',$angle_label_color='black';
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var $angle_fontfam=FF_FONT1,$angle_fontstyle=FS_NORMAL,$angle_fontsize=10;
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var $angle_fontcolor = 'navy';
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var $gridminor_color='lightgray',$gridmajor_color='lightgray';
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var $show_minor_grid = false, $show_major_grid = true ;
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var $show_angle_mark=true, $show_angle_grid=true, $show_angle_label=true;
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var $angle_tick_len=3, $angle_tick_len2=3, $angle_tick_color='black';
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var $show_angle_tick=true;
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var $radius_tick_color='black';
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function PolarAxis(&$img,&$aScale) {
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parent::Axis($img,$aScale);
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}
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function ShowAngleDegreeMark($aFlg=true) {
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$this->show_angle_mark = $aFlg;
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}
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function SetAngleStep($aStep) {
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$this->angle_step=$aStep;
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}
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function HideTicks($aFlg=true,$aAngleFlg=true) {
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parent::HideTicks($aFlg,$aFlg);
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$this->show_angle_tick = !$aAngleFlg;
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}
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function ShowAngleLabel($aFlg=true) {
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$this->show_angle_label = $aFlg;
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}
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function ShowGrid($aMajor=true,$aMinor=false,$aAngle=true) {
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$this->show_minor_grid = $aMinor;
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$this->show_major_grid = $aMajor;
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$this->show_angle_grid = $aAngle ;
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}
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function SetAngleFont($aFontFam,$aFontStyle=FS_NORMAL,$aFontSize=10) {
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$this->angle_fontfam = $aFontFam;
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$this->angle_fontstyle = $aFontStyle;
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$this->angle_fontsize = $aFontSize;
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}
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function SetColor($aColor,$aRadColor='',$aAngleColor='') {
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if( $aAngleColor == '' )
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$aAngleColor=$aColor;
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parent::SetColor($aColor,$aRadColor);
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$this->angle_fontcolor = $aAngleColor;
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}
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function SetGridColor($aMajorColor,$aMinorColor='',$aAngleColor='') {
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if( $aMinorColor == '' )
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$aMinorColor = $aMajorColor;
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if( $aAngleColor == '' )
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$aAngleColor = $aMajorColor;
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$this->gridminor_color = $aMinorColor;
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$this->gridmajor_color = $aMajorColor;
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$this->angle_color = $aAngleColor;
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}
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function SetTickColors($aRadColor,$aAngleColor='') {
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$this->radius_tick_color = $aRadColor;
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$this->angle_tick_color = $aAngleColor;
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}
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// Private methods
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function StrokeGrid($pos) {
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$x = round($this->img->left_margin + $this->img->plotwidth/2);
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$this->scale->ticks->Stroke($this->img,$this->scale,$pos);
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// Stroke the minor arcs
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$pmin = array();
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$p = $this->scale->ticks->ticks_pos;
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$n = count($p);
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$i = 0;
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$this->img->SetColor($this->gridminor_color);
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while( $i < $n ) {
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$r = $p[$i]-$x+1;
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$pmin[]=$r;
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if( $this->show_minor_grid ) {
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$this->img->Circle($x,$pos,$r);
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}
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$i++;
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}
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$limit = max($this->img->plotwidth,$this->img->plotheight)*1.4 ;
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while( $r < $limit ) {
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$off = $r;
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$i=1;
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$r = $off + round($p[$i]-$x+1);
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while( $r < $limit && $i < $n ) {
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$r = $off+$p[$i]-$x;
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$pmin[]=$r;
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if( $this->show_minor_grid ) {
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$this->img->Circle($x,$pos,$r);
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}
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$i++;
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}
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}
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// Stroke the major arcs
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if( $this->show_major_grid ) {
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// First determine how many minor step on
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// every major step. We have recorded the minor radius
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// in pmin and use these values. This is done in order
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// to avoid rounding errors if we were to recalculate the
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// different major radius.
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$pmaj = $this->scale->ticks->maj_ticks_pos;
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$p = $this->scale->ticks->ticks_pos;
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if( $this->scale->name == 'lin' ) {
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$step=round(($pmaj[1] - $pmaj[0])/($p[1] - $p[0]));
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}
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else {
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$step=9;
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}
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$n = round(count($pmin)/$step);
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$i = 0;
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$this->img->SetColor($this->gridmajor_color);
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$limit = max($this->img->plotwidth,$this->img->plotheight)*1.4 ;
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$off = $r;
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$i=0;
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$r = $pmin[$i*$step];
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while( $r < $limit && $i < $n ) {
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$r = $pmin[$i*$step];
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$this->img->Circle($x,$pos,$r);
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$i++;
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}
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}
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// Draw angles
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if( $this->show_angle_grid ) {
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$this->img->SetColor($this->angle_color);
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$d = max($this->img->plotheight,$this->img->plotwidth)*1.4 ;
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$a = 0;
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$p = $this->scale->ticks->ticks_pos;
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$start_radius = $p[1]-$x;
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while( $a < 360 ) {
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if( $a == 90 || $a == 270 ) {
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// Make sure there are no rounding problem with
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// exactly vertical lines
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$this->img->Line($x+$start_radius*cos($a/180*M_PI)+1,
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$pos-$start_radius*sin($a/180*M_PI),
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$x+$start_radius*cos($a/180*M_PI)+1,
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$pos-$d*sin($a/180*M_PI));
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}
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else {
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$this->img->Line($x+$start_radius*cos($a/180*M_PI)+1,
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$pos-$start_radius*sin($a/180*M_PI),
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$x+$d*cos($a/180*M_PI),
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$pos-$d*sin($a/180*M_PI));
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}
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$a += $this->angle_step;
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}
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}
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}
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function StrokeAngleLabels($pos,$type) {
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if( !$this->show_angle_label )
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return;
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$x0 = round($this->img->left_margin+$this->img->plotwidth/2)+1;
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$d = max($this->img->plotwidth,$this->img->plotheight)*1.42;
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$a = $this->angle_step;
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$t = new Text();
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$t->SetColor($this->angle_fontcolor);
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$t->SetFont($this->angle_fontfam,$this->angle_fontstyle,$this->angle_fontsize);
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$xright = $this->img->width - $this->img->right_margin;
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$ytop = $this->img->top_margin;
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$xleft = $this->img->left_margin;
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$ybottom = $this->img->height - $this->img->bottom_margin;
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$ha = 'left';
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$va = 'center';
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$w = $this->img->plotwidth/2;
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$h = $this->img->plotheight/2;
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$xt = $x0; $yt = $pos;
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$margin=5;
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$tl = $this->angle_tick_len ; // Outer len
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$tl2 = $this->angle_tick_len2 ; // Interior len
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$this->img->SetColor($this->angle_tick_color);
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$rot90 = $this->img->a == 90 ;
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if( $type == POLAR_360 ) {
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$ca1 = atan($h/$w)/M_PI*180;
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$ca2 = 180-$ca1;
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$ca3 = $ca1+180;
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$ca4 = 360-$ca1;
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$end = 360;
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while( $a < $end ) {
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$ca = cos($a/180*M_PI);
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$sa = sin($a/180*M_PI);
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$x = $d*$ca;
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$y = $d*$sa;
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$xt=1000;$yt=1000;
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if( $a <= $ca1 || $a >= $ca4 ) {
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$yt = $pos - $w * $y/$x;
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$xt = $xright + $margin;
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if( $rot90 ) {
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$ha = 'center';
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$va = 'top';
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}
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else {
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$ha = 'left';
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$va = 'center';
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}
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$x1=$xright-$tl2; $x2=$xright+$tl;
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$y1=$y2=$yt;
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}
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elseif( $a > $ca1 && $a < $ca2 ) {
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$xt = $x0 + $h * $x/$y;
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$yt = $ytop - $margin;
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if( $rot90 ) {
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$ha = 'left';
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$va = 'center';
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}
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else {
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$ha = 'center';
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$va = 'bottom';
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}
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$y1=$ytop+$tl2;$y2=$ytop-$tl;
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$x1=$x2=$xt;
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}
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elseif( $a >= $ca2 && $a <= $ca3 ) {
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$yt = $pos + $w * $y/$x;
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$xt = $xleft - $margin;
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if( $rot90 ) {
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$ha = 'center';
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$va = 'bottom';
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}
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else {
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$ha = 'right';
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$va = 'center';
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}
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$x1=$xleft+$tl2;$x2=$xleft-$tl;
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$y1=$y2=$yt;
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}
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else {
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$xt = $x0 - $h * $x/$y;
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$yt = $ybottom + $margin;
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if( $rot90 ) {
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$ha = 'right';
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$va = 'center';
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}
|
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else {
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$ha = 'center';
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$va = 'top';
|
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}
|
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$y1=$ybottom-$tl2;$y2=$ybottom+$tl;
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$x1=$x2=$xt;
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}
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if( $a != 0 && $a != 180 ) {
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$t->Align($ha,$va);
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if( $this->show_angle_mark )
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$a .= '<27>';
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$t->Set($a);
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$t->Stroke($this->img,$xt,$yt);
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if( $this->show_angle_tick )
|
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$this->img->Line($x1,$y1,$x2,$y2);
|
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}
|
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$a += $this->angle_step;
|
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}
|
||
}
|
||
else {
|
||
// POLAR_HALF
|
||
$ca1 = atan($h/$w*2)/M_PI*180;
|
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$ca2 = 180-$ca1;
|
||
$end = 180;
|
||
while( $a < $end ) {
|
||
$ca = cos($a/180*M_PI);
|
||
$sa = sin($a/180*M_PI);
|
||
$x = $d*$ca;
|
||
$y = $d*$sa;
|
||
if( $a <= $ca1 ) {
|
||
$yt = $pos - $w * $y/$x;
|
||
$xt = $xright + $margin;
|
||
if( $rot90 ) {
|
||
$ha = 'center';
|
||
$va = 'top';
|
||
}
|
||
else {
|
||
$ha = 'left';
|
||
$va = 'center';
|
||
}
|
||
$x1=$xright-$tl2; $x2=$xright+$tl;
|
||
$y1=$y2=$yt;
|
||
}
|
||
elseif( $a > $ca1 && $a < $ca2 ) {
|
||
$xt = $x0 + 2*$h * $x/$y;
|
||
$yt = $ytop - $margin;
|
||
if( $rot90 ) {
|
||
$ha = 'left';
|
||
$va = 'center';
|
||
}
|
||
else {
|
||
$ha = 'center';
|
||
$va = 'bottom';
|
||
}
|
||
$y1=$ytop+$tl2;$y2=$ytop-$tl;
|
||
$x1=$x2=$xt;
|
||
}
|
||
elseif( $a >= $ca2 ) {
|
||
$yt = $pos + $w * $y/$x;
|
||
$xt = $xleft - $margin;
|
||
if( $rot90 ) {
|
||
$ha = 'center';
|
||
$va = 'bottom';
|
||
}
|
||
else {
|
||
$ha = 'right';
|
||
$va = 'center';
|
||
}
|
||
$x1=$xleft+$tl2;$x2=$xleft-$tl;
|
||
$y1=$y2=$yt;
|
||
}
|
||
$t->Align($ha,$va);
|
||
if( $this->show_angle_mark )
|
||
$a .= '<27>';
|
||
$t->Set($a);
|
||
$t->Stroke($this->img,$xt,$yt);
|
||
if( $this->show_angle_tick )
|
||
$this->img->Line($x1,$y1,$x2,$y2);
|
||
$a += $this->angle_step;
|
||
}
|
||
}
|
||
}
|
||
|
||
function Stroke($pos) {
|
||
|
||
$this->img->SetLineWeight($this->weight);
|
||
$this->img->SetColor($this->color);
|
||
$this->img->SetFont($this->font_family,$this->font_style,$this->font_size);
|
||
if( !$this->hide_line )
|
||
$this->img->FilledRectangle($this->img->left_margin,$pos,
|
||
$this->img->width-$this->img->right_margin,$pos+$this->weight-1);
|
||
$y=$pos+$this->img->GetFontHeight()+$this->title_margin+$this->title->margin;
|
||
if( $this->title_adjust=="high" )
|
||
$this->title->Pos($this->img->width-$this->img->right_margin,$y,"right","top");
|
||
elseif( $this->title_adjust=="middle" || $this->title_adjust=="center" )
|
||
$this->title->Pos(($this->img->width-$this->img->left_margin-
|
||
$this->img->right_margin)/2+$this->img->left_margin,
|
||
$y,"center","top");
|
||
elseif($this->title_adjust=="low")
|
||
$this->title->Pos($this->img->left_margin,$y,"left","top");
|
||
else {
|
||
JpGraphError::RaiseL(17002,$this->title_adjust);
|
||
//('Unknown alignment specified for X-axis title. ('.$this->title_adjust.')');
|
||
}
|
||
|
||
|
||
if (!$this->hide_labels) {
|
||
$this->StrokeLabels($pos,false);
|
||
}
|
||
$this->img->SetColor($this->radius_tick_color);
|
||
$this->scale->ticks->Stroke($this->img,$this->scale,$pos);
|
||
|
||
//
|
||
// Mirror the positions for the left side of the scale
|
||
//
|
||
$mid = 2*($this->img->left_margin+$this->img->plotwidth/2);
|
||
$n = count($this->scale->ticks->ticks_pos);
|
||
$i=0;
|
||
while( $i < $n ) {
|
||
$this->scale->ticks->ticks_pos[$i] =
|
||
$mid-$this->scale->ticks->ticks_pos[$i] ;
|
||
++$i;
|
||
}
|
||
|
||
$n = count($this->scale->ticks->maj_ticks_pos);
|
||
$i=0;
|
||
while( $i < $n ) {
|
||
$this->scale->ticks->maj_ticks_pos[$i] =
|
||
$mid-$this->scale->ticks->maj_ticks_pos[$i] ;
|
||
++$i;
|
||
}
|
||
|
||
$n = count($this->scale->ticks->maj_ticklabels_pos);
|
||
$i=1;
|
||
while( $i < $n ) {
|
||
$this->scale->ticks->maj_ticklabels_pos[$i] =
|
||
$mid-$this->scale->ticks->maj_ticklabels_pos[$i] ;
|
||
++$i;
|
||
}
|
||
|
||
// Draw the left side of the scale
|
||
$n = count($this->scale->ticks->ticks_pos);
|
||
$yu = $pos - $this->scale->ticks->direction*$this->scale->ticks->GetMinTickAbsSize();
|
||
|
||
|
||
// Minor ticks
|
||
if( ! $this->scale->ticks->supress_minor_tickmarks ) {
|
||
$i=1;
|
||
while( $i < $n/2 ) {
|
||
$x = round($this->scale->ticks->ticks_pos[$i]) ;
|
||
$this->img->Line($x,$pos,$x,$yu);
|
||
++$i;
|
||
}
|
||
}
|
||
|
||
$n = count($this->scale->ticks->maj_ticks_pos);
|
||
$yu = $pos - $this->scale->ticks->direction*$this->scale->ticks->GetMajTickAbsSize();
|
||
|
||
|
||
// Major ticks
|
||
if( ! $this->scale->ticks->supress_tickmarks ) {
|
||
$i=1;
|
||
while( $i < $n/2 ) {
|
||
$x = round($this->scale->ticks->maj_ticks_pos[$i]) ;
|
||
$this->img->Line($x,$pos,$x,$yu);
|
||
++$i;
|
||
}
|
||
}
|
||
if (!$this->hide_labels) {
|
||
$this->StrokeLabels($pos,false);
|
||
}
|
||
$this->title->Stroke($this->img);
|
||
}
|
||
}
|
||
|
||
class PolarScale extends LinearScale {
|
||
var $graph;
|
||
function PolarScale($aMax=0,&$graph) {
|
||
parent::LinearScale(0,$aMax,'x');
|
||
$this->graph = &$graph;
|
||
}
|
||
|
||
function _Translate($v) {
|
||
return parent::Translate($v);
|
||
}
|
||
|
||
function PTranslate($aAngle,$aRad) {
|
||
|
||
$m = $this->scale[1];
|
||
$w = $this->graph->img->plotwidth/2;
|
||
$aRad = $aRad/$m*$w;
|
||
|
||
$x = cos( $aAngle/180 * M_PI ) * $aRad;
|
||
$y = sin( $aAngle/180 * M_PI ) * $aRad;
|
||
|
||
$x += $this->_Translate(0);
|
||
|
||
if( $this->graph->iType == POLAR_360 ) {
|
||
$y = ($this->graph->img->top_margin + $this->graph->img->plotheight/2) - $y;
|
||
}
|
||
else {
|
||
$y = ($this->graph->img->top_margin + $this->graph->img->plotheight) - $y;
|
||
}
|
||
return array($x,$y);
|
||
}
|
||
}
|
||
|
||
class PolarLogScale extends LogScale {
|
||
var $graph;
|
||
function PolarLogScale($aMax=1,&$graph) {
|
||
parent::LogScale(0,$aMax,'x');
|
||
$this->graph = &$graph;
|
||
$this->ticks->SetLabelLogType(LOGLABELS_MAGNITUDE);
|
||
|
||
}
|
||
|
||
function PTranslate($aAngle,$aRad) {
|
||
|
||
if( $aRad == 0 )
|
||
$aRad = 1;
|
||
$aRad = log10($aRad);
|
||
$m = $this->scale[1];
|
||
$w = $this->graph->img->plotwidth/2;
|
||
$aRad = $aRad/$m*$w;
|
||
|
||
$x = cos( $aAngle/180 * M_PI ) * $aRad;
|
||
$y = sin( $aAngle/180 * M_PI ) * $aRad;
|
||
|
||
$x += $w+$this->graph->img->left_margin;//$this->_Translate(0);
|
||
if( $this->graph->iType == POLAR_360 ) {
|
||
$y = ($this->graph->img->top_margin + $this->graph->img->plotheight/2) - $y;
|
||
}
|
||
else {
|
||
$y = ($this->graph->img->top_margin + $this->graph->img->plotheight) - $y;
|
||
}
|
||
return array($x,$y);
|
||
}
|
||
}
|
||
|
||
class PolarGraph extends Graph {
|
||
var $scale;
|
||
var $iType=POLAR_360;
|
||
var $axis;
|
||
|
||
function PolarGraph($aWidth=300,$aHeight=200,$aCachedName="",$aTimeOut=0,$aInline=true) {
|
||
parent::Graph($aWidth,$aHeight,$aCachedName,$aTimeOut,$aInline) ;
|
||
$this->SetDensity(TICKD_DENSE);
|
||
$this->SetBox();
|
||
$this->SetMarginColor('white');
|
||
}
|
||
|
||
function SetDensity($aDense) {
|
||
$this->SetTickDensity(TICKD_NORMAL,$aDense);
|
||
}
|
||
|
||
function Set90AndMargin($lm=0,$rm=0,$tm=0,$bm=0) {
|
||
$adj = ($this->img->height - $this->img->width)/2;
|
||
$this->SetAngle(90);
|
||
$this->img->SetMargin($lm-$adj,$rm-$adj,$tm+$adj,$bm+$adj);
|
||
$this->img->SetCenter(floor($this->img->width/2),floor($this->img->height/2));
|
||
$this->axis->SetLabelAlign('right','center');
|
||
//JpGraphError::Raise('Set90AndMargin() is not supported for polar graphs.');
|
||
}
|
||
|
||
function SetScale($aScale,$rmax=0) {
|
||
if( $aScale == 'lin' )
|
||
$this->scale = new PolarScale($rmax,$this);
|
||
elseif( $aScale == 'log' ) {
|
||
$this->scale = new PolarLogScale($rmax,$this);
|
||
}
|
||
else {
|
||
JpGraphError::RaiseL(17004);//('Unknown scale type for polar graph. Must be "lin" or "log"');
|
||
}
|
||
|
||
$this->axis = new PolarAxis($this->img,$this->scale);
|
||
$this->SetMargin(40,40,50,40);
|
||
}
|
||
|
||
function SetType($aType) {
|
||
$this->iType = $aType;
|
||
}
|
||
|
||
function SetPlotSize($w,$h) {
|
||
$this->SetMargin(($this->img->width-$w)/2,($this->img->width-$w)/2,
|
||
($this->img->height-$h)/2,($this->img->height-$h)/2);
|
||
}
|
||
|
||
// Private methods
|
||
function GetPlotsMax() {
|
||
$n = count($this->plots);
|
||
$m = $this->plots[0]->Max();
|
||
$i=1;
|
||
while($i < $n) {
|
||
$m = max($this->plots[$i]->Max(),$m);
|
||
++$i;
|
||
}
|
||
return $m;
|
||
}
|
||
|
||
function Stroke($aStrokeFileName="") {
|
||
|
||
// Start by adjusting the margin so that potential titles will fit.
|
||
$this->AdjustMarginsForTitles();
|
||
|
||
// If the filename is the predefined value = '_csim_special_'
|
||
// we assume that the call to stroke only needs to do enough
|
||
// to correctly generate the CSIM maps.
|
||
// We use this variable to skip things we don't strictly need
|
||
// to do to generate the image map to improve performance
|
||
// a best we can. Therefor you will see a lot of tests !$_csim in the
|
||
// code below.
|
||
$_csim = ($aStrokeFileName===_CSIM_SPECIALFILE);
|
||
|
||
// 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.
|
||
$this->iHasStroked = true;
|
||
|
||
//Check if we should autoscale axis
|
||
if( !$this->scale->IsSpecified() && count($this->plots)>0 ) {
|
||
$max = $this->GetPlotsMax();
|
||
$t1 = $this->img->plotwidth;
|
||
$this->img->plotwidth /= 2;
|
||
$t2 = $this->img->left_margin;
|
||
$this->img->left_margin += $this->img->plotwidth+1;
|
||
$this->scale->AutoScale($this->img,0,$max,
|
||
$this->img->plotwidth/$this->xtick_factor/2);
|
||
$this->img->plotwidth = $t1;
|
||
$this->img->left_margin = $t2;
|
||
}
|
||
else {
|
||
// The tick calculation will use the user suplied min/max values to determine
|
||
// the ticks. If auto_ticks is false the exact user specifed min and max
|
||
// values will be used for the scale.
|
||
// If auto_ticks is true then the scale might be slightly adjusted
|
||
// so that the min and max values falls on an even major step.
|
||
//$min = 0;
|
||
$max = $this->scale->scale[1];
|
||
$t1 = $this->img->plotwidth;
|
||
$this->img->plotwidth /= 2;
|
||
$t2 = $this->img->left_margin;
|
||
$this->img->left_margin += $this->img->plotwidth+1;
|
||
$this->scale->AutoScale($this->img,0,$max,
|
||
$this->img->plotwidth/$this->xtick_factor/2);
|
||
$this->img->plotwidth = $t1;
|
||
$this->img->left_margin = $t2;
|
||
}
|
||
|
||
if( $this->iType == POLAR_180 )
|
||
$pos = $this->img->height - $this->img->bottom_margin;
|
||
else
|
||
$pos = $this->img->plotheight/2 + $this->img->top_margin;
|
||
|
||
|
||
if( !$_csim ) {
|
||
$this->StrokePlotArea();
|
||
}
|
||
|
||
$this->iDoClipping = true;
|
||
|
||
if( $this->iDoClipping ) {
|
||
$oldimage = $this->img->CloneCanvasH();
|
||
}
|
||
|
||
if( !$_csim ) {
|
||
$this->axis->StrokeGrid($pos);
|
||
}
|
||
|
||
// Stroke all plots for Y1 axis
|
||
for($i=0; $i < count($this->plots); ++$i) {
|
||
$this->plots[$i]->Stroke($this->img,$this->scale);
|
||
}
|
||
|
||
|
||
if( $this->iDoClipping ) {
|
||
// Clipping only supports graphs at 0 and 90 degrees
|
||
if( $this->img->a == 0 ) {
|
||
$this->img->CopyCanvasH($oldimage,$this->img->img,
|
||
$this->img->left_margin,$this->img->top_margin,
|
||
$this->img->left_margin,$this->img->top_margin,
|
||
$this->img->plotwidth+1,$this->img->plotheight+1);
|
||
}
|
||
elseif( $this->img->a == 90 ) {
|
||
$adj = round(($this->img->height - $this->img->width)/2);
|
||
$this->img->CopyCanvasH($oldimage,$this->img->img,
|
||
$this->img->bottom_margin-$adj,$this->img->left_margin+$adj,
|
||
$this->img->bottom_margin-$adj,$this->img->left_margin+$adj,
|
||
$this->img->plotheight,$this->img->plotwidth);
|
||
}
|
||
$this->img->Destroy();
|
||
$this->img->SetCanvasH($oldimage);
|
||
}
|
||
|
||
if( !$_csim ) {
|
||
$this->axis->Stroke($pos);
|
||
$this->axis->StrokeAngleLabels($pos,$this->iType);
|
||
}
|
||
|
||
if( !$_csim ) {
|
||
$this->StrokePlotBox();
|
||
$this->footer->Stroke($this->img);
|
||
|
||
// The titles and legends never gets rotated so make sure
|
||
// that the angle is 0 before stroking them
|
||
$aa = $this->img->SetAngle(0);
|
||
$this->StrokeTitles();
|
||
}
|
||
|
||
for($i=0; $i < count($this->plots) ; ++$i ) {
|
||
$this->plots[$i]->Legend($this);
|
||
}
|
||
|
||
$this->legend->Stroke($this->img);
|
||
|
||
if( !$_csim ) {
|
||
|
||
$this->StrokeTexts();
|
||
$this->img->SetAngle($aa);
|
||
|
||
// Draw an outline around the image map
|
||
if(_JPG_DEBUG)
|
||
$this->DisplayClientSideaImageMapAreas();
|
||
|
||
// Adjust the appearance of the image
|
||
$this->AdjustSaturationBrightnessContrast();
|
||
|
||
// 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);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
|
||
?>
|