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<?php
/*=======================================================================
// File: JPGRAPH_POLAR.PHP
// Description: Polar plot extension for JpGraph
// Created: 2003-02-02
// Ver: $Id: jpgraph_polar.php 1796 2009-09-07 09:37:19Z ljp $
//
// Copyright (c) Aditus Consulting. All rights reserved.
//========================================================================
*/
require_once ('jpgraph_plotmark.inc.php');
require_once "jpgraph_log.php";
define('POLAR_360',1);
define('POLAR_180',2);
//
// Note. Don't attempt to make sense of this code.
// In order not to have to be able to inherit the scaling code
// from the main graph package we have had to make some "tricks" since
// the original scaling and axis was not designed to do what is
// required here.
// There were two option. 1: Re-implement everything and get a clean design
// and 2: do some "small" trickery and be able to inherit most of
// the functionlity from the main graph package.
// We choose 2: here in order to save some time.
//
//--------------------------------------------------------------------------
// class PolarPlot
//--------------------------------------------------------------------------
class PolarPlot {
public $line_style='solid',$mark;
public $legendcsimtarget='';
public $legendcsimalt='';
public $legend="";
public $csimtargets=array(); // Array of targets for CSIM
public $csimareas=""; // Resultant CSIM area tags
public $csimalts=null; // ALT:s for corresponding target
public $scale=null;
private $numpoints=0;
private $iColor='navy',$iFillColor='';
private $iLineWeight=1;
private $coord=null;
function __construct($aData) {
$n = count($aData);
if( $n & 1 ) {
JpGraphError::RaiseL(17001);
//('Polar plots must have an even number of data point. Each data point is a tuple (angle,radius).');
}
$this->numpoints = $n/2;
$this->coord = $aData;
$this->mark = new PlotMark();
}
function SetWeight($aWeight) {
$this->iLineWeight = $aWeight;
}
function SetColor($aColor){
$this->iColor = $aColor;
}
function SetFillColor($aColor){
$this->iFillColor = $aColor;
}
function Max() {
$m = $this->coord[1];
$i=1;
while( $i < $this->numpoints ) {
$m = max($m,$this->coord[2*$i+1]);
++$i;
}
return $m;
}
// Set href targets for CSIM
function SetCSIMTargets($aTargets,$aAlts=null) {
$this->csimtargets=$aTargets;
$this->csimalts=$aAlts;
}
// Get all created areas
function GetCSIMareas() {
return $this->csimareas;
}
function SetLegend($aLegend,$aCSIM="",$aCSIMAlt="") {
$this->legend = $aLegend;
$this->legendcsimtarget = $aCSIM;
$this->legendcsimalt = $aCSIMAlt;
}
// Private methods
function Legend($aGraph) {
$color = $this->iColor ;
if( $this->legend != "" ) {
if( $this->iFillColor!='' ) {
$color = $this->iFillColor;
$aGraph->legend->Add($this->legend,$color,$this->mark,0,
$this->legendcsimtarget,$this->legendcsimalt);
}
else {
$aGraph->legend->Add($this->legend,$color,$this->mark,$this->line_style,
$this->legendcsimtarget,$this->legendcsimalt);
}
}
}
function Stroke($img,$scale) {
$i=0;
$p=array();
$this->csimareas='';
while($i < $this->numpoints) {
list($x1,$y1) = $scale->PTranslate($this->coord[2*$i],$this->coord[2*$i+1]);
$p[2*$i] = $x1;
$p[2*$i+1] = $y1;
if( isset($this->csimtargets[$i]) ) {
$this->mark->SetCSIMTarget($this->csimtargets[$i]);
$this->mark->SetCSIMAlt($this->csimalts[$i]);
$this->mark->SetCSIMAltVal($this->coord[2*$i], $this->coord[2*$i+1]);
$this->mark->Stroke($img,$x1,$y1);
$this->csimareas .= $this->mark->GetCSIMAreas();
}
else {
$this->mark->Stroke($img,$x1,$y1);
}
++$i;
}
if( $this->iFillColor != '' ) {
$img->SetColor($this->iFillColor);
$img->FilledPolygon($p);
}
$img->SetLineWeight($this->iLineWeight);
$img->SetColor($this->iColor);
$img->Polygon($p,$this->iFillColor!='');
}
}
//--------------------------------------------------------------------------
// class PolarAxis
//--------------------------------------------------------------------------
class PolarAxis extends Axis {
private $angle_step=15,$angle_color='lightgray',$angle_label_color='black';
private $angle_fontfam=FF_FONT1,$angle_fontstyle=FS_NORMAL,$angle_fontsize=10;
private $angle_fontcolor = 'navy';
private $gridminor_color='lightgray',$gridmajor_color='lightgray';
private $show_minor_grid = false, $show_major_grid = true ;
private $show_angle_mark=true, $show_angle_grid=true, $show_angle_label=true;
private $angle_tick_len=3, $angle_tick_len2=3, $angle_tick_color='black';
private $show_angle_tick=true;
private $radius_tick_color='black';
function __construct($img,$aScale) {
parent::__construct($img,$aScale);
}
function ShowAngleDegreeMark($aFlg=true) {
$this->show_angle_mark = $aFlg;
}
function SetAngleStep($aStep) {
$this->angle_step=$aStep;
}
function HideTicks($aFlg=true,$aAngleFlg=true) {
parent::HideTicks($aFlg,$aFlg);
$this->show_angle_tick = !$aAngleFlg;
}
function ShowAngleLabel($aFlg=true) {
$this->show_angle_label = $aFlg;
}
function ShowGrid($aMajor=true,$aMinor=false,$aAngle=true) {
$this->show_minor_grid = $aMinor;
$this->show_major_grid = $aMajor;
$this->show_angle_grid = $aAngle ;
}
function SetAngleFont($aFontFam,$aFontStyle=FS_NORMAL,$aFontSize=10) {
$this->angle_fontfam = $aFontFam;
$this->angle_fontstyle = $aFontStyle;
$this->angle_fontsize = $aFontSize;
}
function SetColor($aColor,$aRadColor='',$aAngleColor='') {
if( $aAngleColor == '' )
$aAngleColor=$aColor;
parent::SetColor($aColor,$aRadColor);
$this->angle_fontcolor = $aAngleColor;
}
function SetGridColor($aMajorColor,$aMinorColor='',$aAngleColor='') {
if( $aMinorColor == '' )
$aMinorColor = $aMajorColor;
if( $aAngleColor == '' )
$aAngleColor = $aMajorColor;
$this->gridminor_color = $aMinorColor;
$this->gridmajor_color = $aMajorColor;
$this->angle_color = $aAngleColor;
}
function SetTickColors($aRadColor,$aAngleColor='') {
$this->radius_tick_color = $aRadColor;
$this->angle_tick_color = $aAngleColor;
}
// Private methods
function StrokeGrid($pos) {
$x = round($this->img->left_margin + $this->img->plotwidth/2);
$this->scale->ticks->Stroke($this->img,$this->scale,$pos);
// Stroke the minor arcs
$pmin = array();
$p = $this->scale->ticks->ticks_pos;
$n = count($p);
$i = 0;
$this->img->SetColor($this->gridminor_color);
while( $i < $n ) {
$r = $p[$i]-$x+1;
$pmin[]=$r;
if( $this->show_minor_grid ) {
$this->img->Circle($x,$pos,$r);
}
$i++;
}
$limit = max($this->img->plotwidth,$this->img->plotheight)*1.4 ;
while( $r < $limit ) {
$off = $r;
$i=1;
$r = $off + round($p[$i]-$x+1);
while( $r < $limit && $i < $n ) {
$r = $off+$p[$i]-$x;
$pmin[]=$r;
if( $this->show_minor_grid ) {
$this->img->Circle($x,$pos,$r);
}
$i++;
}
}
// Stroke the major arcs
if( $this->show_major_grid ) {
// First determine how many minor step on
// every major step. We have recorded the minor radius
// in pmin and use these values. This is done in order
// to avoid rounding errors if we were to recalculate the
// different major radius.
$pmaj = $this->scale->ticks->maj_ticks_pos;
$p = $this->scale->ticks->ticks_pos;
if( $this->scale->name == 'lin' ) {
$step=round(($pmaj[1] - $pmaj[0])/($p[1] - $p[0]));
}
else {
$step=9;
}
$n = round(count($pmin)/$step);
$i = 0;
$this->img->SetColor($this->gridmajor_color);
$limit = max($this->img->plotwidth,$this->img->plotheight)*1.4 ;
$off = $r;
$i=0;
$r = $pmin[$i*$step];
while( $r < $limit && $i < $n ) {
$r = $pmin[$i*$step];
$this->img->Circle($x,$pos,$r);
$i++;
}
}
// Draw angles
if( $this->show_angle_grid ) {
$this->img->SetColor($this->angle_color);
$d = max($this->img->plotheight,$this->img->plotwidth)*1.4 ;
$a = 0;
$p = $this->scale->ticks->ticks_pos;
$start_radius = $p[1]-$x;
while( $a < 360 ) {
if( $a == 90 || $a == 270 ) {
// Make sure there are no rounding problem with
// exactly vertical lines
$this->img->Line($x+$start_radius*cos($a/180*M_PI)+1,
$pos-$start_radius*sin($a/180*M_PI),
$x+$start_radius*cos($a/180*M_PI)+1,
$pos-$d*sin($a/180*M_PI));
}
else {
$this->img->Line($x+$start_radius*cos($a/180*M_PI)+1,
$pos-$start_radius*sin($a/180*M_PI),
$x+$d*cos($a/180*M_PI),
$pos-$d*sin($a/180*M_PI));
}
$a += $this->angle_step;
}
}
}
function StrokeAngleLabels($pos,$type) {
if( !$this->show_angle_label )
return;
$x0 = round($this->img->left_margin+$this->img->plotwidth/2)+1;
$d = max($this->img->plotwidth,$this->img->plotheight)*1.42;
$a = $this->angle_step;
$t = new Text();
$t->SetColor($this->angle_fontcolor);
$t->SetFont($this->angle_fontfam,$this->angle_fontstyle,$this->angle_fontsize);
$xright = $this->img->width - $this->img->right_margin;
$ytop = $this->img->top_margin;
$xleft = $this->img->left_margin;
$ybottom = $this->img->height - $this->img->bottom_margin;
$ha = 'left';
$va = 'center';
$w = $this->img->plotwidth/2;
$h = $this->img->plotheight/2;
$xt = $x0; $yt = $pos;
$margin=5;
$tl = $this->angle_tick_len ; // Outer len
$tl2 = $this->angle_tick_len2 ; // Interior len
$this->img->SetColor($this->angle_tick_color);
$rot90 = $this->img->a == 90 ;
if( $type == POLAR_360 ) {
// Corner angles of the four corners
$ca1 = atan($h/$w)/M_PI*180;
$ca2 = 180-$ca1;
$ca3 = $ca1+180;
$ca4 = 360-$ca1;
$end = 360;
while( $a < $end ) {
$ca = cos($a/180*M_PI);
$sa = sin($a/180*M_PI);
$x = $d*$ca;
$y = $d*$sa;
$xt=1000;$yt=1000;
if( $a <= $ca1 || $a >= $ca4 ) {
$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 + $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 && $a <= $ca3 ) {
$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;
}
else {
$xt = $x0 - $h * $x/$y;
$yt = $ybottom + $margin;
if( $rot90 ) {
$ha = 'right';
$va = 'center';
}
else {
$ha = 'center';
$va = 'top';
}
$y1=$ybottom-$tl2;$y2=$ybottom+$tl;
$x1=$x2=$xt;
}
if( $a != 0 && $a != 180 ) {
$t->Align($ha,$va);
if( $this->scale->clockwise ) {
$t->Set(360-$a);
}
else {
$t->Set($a);
}
if( $this->show_angle_mark && $t->font_family > 4 ) {
$a .= SymChar::Get('degree');
}
$t->Stroke($this->img,$xt,$yt);
if( $this->show_angle_tick ) {
$this->img->Line($x1,$y1,$x2,$y2);
}
}
$a += $this->angle_step;
}
}
else {
// POLAR_HALF
$ca1 = atan($h/$w*2)/M_PI*180;
$ca2 = 180-$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 && $t->font_family > 4 ) {
$a .= SymChar::Get('degree');
}
$t->Set($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,$dummy=true) {
$this->img->SetLineWeight($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" ) {
$this->title->SetPos($this->img->width-$this->img->right_margin,$y,"right","top");
}
elseif( $this->title_adjust=="middle" || $this->title_adjust=="center" ) {
$this->title->SetPos(($this->img->width-$this->img->left_margin-$this->img->right_margin)/2+$this->img->left_margin,
$y,"center","top");
}
elseif($this->title_adjust=="low") {
$this->title->SetPos($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 {
private $graph;
public $clockwise=false;
function __construct($aMax,$graph,$aClockwise) {
parent::__construct(0,$aMax,'x');
$this->graph = $graph;
$this->clockwise = $aClockwise;
}
function SetClockwise($aFlg) {
$this->clockwise = $aFlg;
}
function _Translate($v) {
return parent::Translate($v);
}
function PTranslate($aAngle,$aRad) {
$m = $this->scale[1];
$w = $this->graph->img->plotwidth/2;
$aRad = $aRad/$m*$w;
$a = $aAngle/180 * M_PI;
if( $this->clockwise ) {
$a = 2*M_PI-$a;
}
$x = cos($a) * $aRad;
$y = sin($a) * $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 {
private $graph;
public $clockwise=false;
function __construct($aMax,$graph,$aClockwise=false) {
parent::__construct(0,$aMax,'x');
$this->graph = $graph;
$this->ticks->SetLabelLogType(LOGLABELS_MAGNITUDE);
$this->clockwise = $aClockwise;
}
function SetClockwise($aFlg) {
$this->clockwise = $aFlg;
}
function PTranslate($aAngle,$aRad) {
if( $aRad == 0 )
$aRad = 1;
$aRad = log10($aRad);
$m = $this->scale[1];
$w = $this->graph->img->plotwidth/2;
$aRad = $aRad/$m*$w;
$a = $aAngle/180 * M_PI;
if( $this->clockwise ) {
$a = 2*M_PI-$a;
}
$x = cos( $a ) * $aRad;
$y = sin( $a ) * $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 {
public $scale;
public $axis;
public $iType=POLAR_360;
private $iClockwise=false;
function __construct($aWidth=300,$aHeight=200,$aCachedName="",$aTimeOut=0,$aInline=true) {
parent::__construct($aWidth,$aHeight,$aCachedName,$aTimeOut,$aInline) ;
$this->SetDensity(TICKD_DENSE);
$this->SetBox();
$this->SetMarginColor('white');
}
function SetDensity($aDense) {
$this->SetTickDensity(TICKD_NORMAL,$aDense);
}
function SetClockwise($aFlg) {
$this->scale->SetClockwise($aFlg);
}
function Set90AndMargin($lm=0,$rm=0,$tm=0,$bm=0) {
$adj = ($this->img->height - $this->img->width)/2;
$this->SetAngle(90);
$lm2 = -$adj + ($lm-$rm+$tm+$bm)/2;
$rm2 = -$adj + (-$lm+$rm+$tm+$bm)/2;
$tm2 = $adj + ($tm-$bm+$lm+$rm)/2;
$bm2 = $adj + (-$tm+$bm+$lm+$rm)/2;
$this->SetMargin($lm2, $rm2, $tm2, $bm2);
$this->axis->SetLabelAlign('right','center');
}
function SetScale($aScale,$rmax=0,$dummy1=1,$dummy2=1,$dummy3=1) {
if( $aScale == 'lin' ) {
$this->scale = new PolarScale($rmax,$this,$this->iClockwise);
}
elseif( $aScale == 'log' ) {
$this->scale = new PolarLogScale($rmax,$this,$this->iClockwise);
}
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 ) {
$adj1 = round(($this->img->height - $this->img->width)/2);
$adj2 = round(($this->img->width - $this->img->height)/2);
$lm = $this->img->left_margin;
$rm = $this->img->right_margin;
$tm = $this->img->top_margin;
$bm = $this->img->bottom_margin;
$this->img->CopyCanvasH($oldimage,$this->img->img,
$adj2 + round(($lm-$rm+$tm+$bm)/2),
$adj1 + round(($tm-$bm+$lm+$rm)/2),
$adj2 + round(($lm-$rm+$tm+$bm)/2),
$adj1 + round(($tm-$bm+$lm+$rm)/2),
$this->img->plotheight+1,
$this->img->plotwidth+1);
}
$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();
// 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);
}
}
}
}
?>
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