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Diffstat (limited to 'html/jpgraph/jpgraph_polar.php')
| -rw-r--r-- | html/jpgraph/jpgraph_polar.php | 897 |
1 files changed, 897 insertions, 0 deletions
diff --git a/html/jpgraph/jpgraph_polar.php b/html/jpgraph/jpgraph_polar.php new file mode 100644 index 0000000..62c6bbc --- /dev/null +++ b/html/jpgraph/jpgraph_polar.php @@ -0,0 +1,897 @@ +<?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) Asial Corporation. 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); + } + } + } +} + + + +?> |