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Diffstat (limited to 'html/jpgraph/jpgraph_radar.php')
| -rw-r--r-- | html/jpgraph/jpgraph_radar.php | 861 |
1 files changed, 861 insertions, 0 deletions
diff --git a/html/jpgraph/jpgraph_radar.php b/html/jpgraph/jpgraph_radar.php new file mode 100644 index 0000000..1d3de62 --- /dev/null +++ b/html/jpgraph/jpgraph_radar.php @@ -0,0 +1,861 @@ +<?php +/*======================================================================= + // File: JPGRAPH_RADAR.PHP + // Description: Radar plot extension for JpGraph + // Created: 2001-02-04 + // Ver: $Id: jpgraph_radar.php 1783 2009-08-25 11:41:01Z ljp $ + // + // Copyright (c) Asial Corporation. All rights reserved. + //======================================================================== + */ + +require_once('jpgraph_plotmark.inc.php'); + +//=================================================== +// CLASS RadarLogTicks +// Description: Logarithmic ticks +//=================================================== +class RadarLogTicks extends Ticks { + + function __construct() { + // Empty + } + + function Stroke($aImg,&$grid,$aPos,$aAxisAngle,$aScale,&$aMajPos,&$aMajLabel) { + $start = $aScale->GetMinVal(); + $limit = $aScale->GetMaxVal(); + $nextMajor = 10*$start; + $step = $nextMajor / 10.0; + $count=1; + + $ticklen_maj=5; + $dx_maj=round(sin($aAxisAngle)*$ticklen_maj); + $dy_maj=round(cos($aAxisAngle)*$ticklen_maj); + $ticklen_min=3; + $dx_min=round(sin($aAxisAngle)*$ticklen_min); + $dy_min=round(cos($aAxisAngle)*$ticklen_min); + + $aMajPos=array(); + $aMajLabel=array(); + + if( $this->supress_first ) { + $aMajLabel[] = ''; + } + else { + $aMajLabel[]=$start; + } + + $yr=$aScale->RelTranslate($start); + $xt=round($yr*cos($aAxisAngle))+$aScale->scale_abs[0]; + $yt=$aPos-round($yr*sin($aAxisAngle)); + $aMajPos[]=$xt+2*$dx_maj; + $aMajPos[]=$yt-$aImg->GetFontheight()/2; + $grid[]=$xt; + $grid[]=$yt; + + $aImg->SetLineWeight($this->weight); + + for($y=$start; $y<=$limit; $y+=$step,++$count ) { + $yr=$aScale->RelTranslate($y); + $xt=round($yr*cos($aAxisAngle))+$aScale->scale_abs[0]; + $yt=$aPos-round($yr*sin($aAxisAngle)); + if( $count % 10 == 0 ) { + $grid[]=$xt; + $grid[]=$yt; + $aMajPos[]=$xt+2*$dx_maj; + $aMajPos[]=$yt-$aImg->GetFontheight()/2; + if( !$this->supress_tickmarks ) { + if( $this->majcolor != '' ) { + $aImg->PushColor($this->majcolor); + } + $aImg->Line($xt+$dx_maj,$yt+$dy_maj,$xt-$dx_maj,$yt-$dy_maj); + if( $this->majcolor != '' ) { + $aImg->PopColor(); + } + } + if( $this->label_formfunc != '' ) { + $f=$this->label_formfunc; + $l = call_user_func($f,$nextMajor); + } + else { + $l = $nextMajor; + } + + $aMajLabel[]=$l; + $nextMajor *= 10; + $step *= 10; + $count=1; + } + else { + if( !$this->supress_minor_tickmarks ) { + if( $this->mincolor != '' ) { + $aImg->PushColor($this->mincolor); + } + $aImg->Line($xt+$dx_min,$yt+$dy_min,$xt-$dx_min,$yt-$dy_min); + if( $this->mincolor != '' ) { + $aImg->PopColor(); + } + } + } + } + } +} + +//=================================================== +// CLASS RadarLinear +// Description: Linear ticks +//=================================================== +class RadarLinearTicks extends Ticks { + + private $minor_step=1, $major_step=2; + private $xlabel_offset=0,$xtick_offset=0; + + function __construct() { + // Empty + } + + // Return major step size in world coordinates + function GetMajor() { + return $this->major_step; + } + + // Return minor step size in world coordinates + function GetMinor() { + return $this->minor_step; + } + + // Set Minor and Major ticks (in world coordinates) + function Set($aMajStep,$aMinStep=false) { + if( $aMinStep==false ) { + $aMinStep=$aMajStep; + } + + if( $aMajStep <= 0 || $aMinStep <= 0 ) { + JpGraphError::RaiseL(25064); + //JpGraphError::Raise(" Minor or major step size is 0. Check that you haven't got an accidental SetTextTicks(0) in your code. If this is not the case you might have stumbled upon a bug in JpGraph. Please report this and if possible include the data that caused the problem."); + } + + $this->major_step=$aMajStep; + $this->minor_step=$aMinStep; + $this->is_set = true; + } + + function Stroke($aImg,&$grid,$aPos,$aAxisAngle,$aScale,&$aMajPos,&$aMajLabel) { + // Prepare to draw linear ticks + $maj_step_abs = abs($aScale->scale_factor*$this->major_step); + $min_step_abs = abs($aScale->scale_factor*$this->minor_step); + $nbrmaj = round($aScale->world_abs_size/$maj_step_abs); + $nbrmin = round($aScale->world_abs_size/$min_step_abs); + $skip = round($nbrmin/$nbrmaj); // Don't draw minor on top of major + + // Draw major ticks + $ticklen2=$this->major_abs_size; + $dx=round(sin($aAxisAngle)*$ticklen2); + $dy=round(cos($aAxisAngle)*$ticklen2); + $label=$aScale->scale[0]+$this->major_step; + + $aImg->SetLineWeight($this->weight); + + $aMajPos = array(); + $aMajLabel = array(); + + for($i=1; $i<=$nbrmaj; ++$i) { + $xt=round($i*$maj_step_abs*cos($aAxisAngle))+$aScale->scale_abs[0]; + $yt=$aPos-round($i*$maj_step_abs*sin($aAxisAngle)); + + if( $this->label_formfunc != '' ) { + $f=$this->label_formfunc; + $l = call_user_func($f,$label); + } + else { + $l = $label; + } + + $aMajLabel[]=$l; + $label += $this->major_step; + $grid[]=$xt; + $grid[]=$yt; + $aMajPos[($i-1)*2]=$xt+2*$dx; + $aMajPos[($i-1)*2+1]=$yt-$aImg->GetFontheight()/2; + if( !$this->supress_tickmarks ) { + if( $this->majcolor != '' ) { + $aImg->PushColor($this->majcolor); + } + $aImg->Line($xt+$dx,$yt+$dy,$xt-$dx,$yt-$dy); + if( $this->majcolor != '' ) { + $aImg->PopColor(); + } + } + } + + // Draw minor ticks + $ticklen2=$this->minor_abs_size; + $dx=round(sin($aAxisAngle)*$ticklen2); + $dy=round(cos($aAxisAngle)*$ticklen2); + if( !$this->supress_tickmarks && !$this->supress_minor_tickmarks) { + if( $this->mincolor != '' ) { + $aImg->PushColor($this->mincolor); + } + for($i=1; $i<=$nbrmin; ++$i) { + if( ($i % $skip) == 0 ) { + continue; + } + $xt=round($i*$min_step_abs*cos($aAxisAngle))+$aScale->scale_abs[0]; + $yt=$aPos-round($i*$min_step_abs*sin($aAxisAngle)); + $aImg->Line($xt+$dx,$yt+$dy,$xt-$dx,$yt-$dy); + } + if( $this->mincolor != '' ) { + $aImg->PopColor(); + } + } + } +} + + +//=================================================== +// CLASS RadarAxis +// Description: Implements axis for the radar graph +//=================================================== +class RadarAxis extends AxisPrototype { + public $title=null; + private $title_color='navy'; + private $len=0; + + function __construct($img,$aScale,$color=array(0,0,0)) { + parent::__construct($img,$aScale,$color); + $this->len = $img->plotheight; + $this->title = new Text(); + $this->title->SetFont(FF_FONT1,FS_BOLD); + $this->color = array(0,0,0); + } + + // Stroke the axis + // $pos = Vertical position of axis + // $aAxisAngle = Axis angle + // $grid = Returns an array with positions used to draw the grid + // $lf = Label flag, TRUE if the axis should have labels + function Stroke($pos,$aAxisAngle,&$grid,$title,$lf) { + $this->img->SetColor($this->color); + + // Determine end points for the axis + $x=round($this->scale->world_abs_size*cos($aAxisAngle)+$this->scale->scale_abs[0]); + $y=round($pos-$this->scale->world_abs_size*sin($aAxisAngle)); + + // Draw axis + $this->img->SetColor($this->color); + $this->img->SetLineWeight($this->weight); + if( !$this->hide ) { + $this->img->Line($this->scale->scale_abs[0],$pos,$x,$y); + } + + $this->scale->ticks->Stroke($this->img,$grid,$pos,$aAxisAngle,$this->scale,$majpos,$majlabel); + $ncolor=0; + if( isset($this->ticks_label_colors) ) { + $ncolor=count($this->ticks_label_colors); + } + + // Draw labels + if( $lf && !$this->hide ) { + $this->img->SetFont($this->font_family,$this->font_style,$this->font_size); + $this->img->SetTextAlign('left','top'); + $this->img->SetColor($this->label_color); + + // majpos contains (x,y) coordinates for labels + if( ! $this->hide_labels ) { + $n = floor(count($majpos)/2); + for($i=0; $i < $n; ++$i) { + // Set specific label color if specified + if( $ncolor > 0 ) { + $this->img->SetColor($this->ticks_label_colors[$i % $ncolor]); + } + + if( $this->ticks_label != null && isset($this->ticks_label[$i]) ) { + $this->img->StrokeText($majpos[$i*2],$majpos[$i*2+1],$this->ticks_label[$i]); + } + else { + $this->img->StrokeText($majpos[$i*2],$majpos[$i*2+1],$majlabel[$i]); + } + } + } + } + $this->_StrokeAxisTitle($pos,$aAxisAngle,$title); + } + + function _StrokeAxisTitle($pos,$aAxisAngle,$title) { + $this->title->Set($title); + $marg=6+$this->title->margin; + $xt=round(($this->scale->world_abs_size+$marg)*cos($aAxisAngle)+$this->scale->scale_abs[0]); + $yt=round($pos-($this->scale->world_abs_size+$marg)*sin($aAxisAngle)); + + // 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. + if( $this->title->iWordwrap > 0 ) { + $title = wordwrap($title,$this->title->iWordwrap,"\n"); + } + + $h=$this->img->GetTextHeight($title)*1.2; + $w=$this->img->GetTextWidth($title)*1.2; + + while( $aAxisAngle > 2*M_PI ) + $aAxisAngle -= 2*M_PI; + + // Around 3 a'clock + if( $aAxisAngle>=7*M_PI/4 || $aAxisAngle <= M_PI/4 ) $dx=-0.15; // Small trimming to make the dist to the axis more even + + // Around 12 a'clock + if( $aAxisAngle>=M_PI/4 && $aAxisAngle <= 3*M_PI/4 ) $dx=($aAxisAngle-M_PI/4)*2/M_PI; + + // Around 9 a'clock + if( $aAxisAngle>=3*M_PI/4 && $aAxisAngle <= 5*M_PI/4 ) $dx=1; + + // Around 6 a'clock + if( $aAxisAngle>=5*M_PI/4 && $aAxisAngle <= 7*M_PI/4 ) $dx=(1-($aAxisAngle-M_PI*5/4)*2/M_PI); + + if( $aAxisAngle>=7*M_PI/4 ) $dy=(($aAxisAngle-M_PI)-3*M_PI/4)*2/M_PI; + if( $aAxisAngle<=M_PI/12 ) $dy=(0.5-$aAxisAngle*2/M_PI); + if( $aAxisAngle<=M_PI/4 && $aAxisAngle > M_PI/12) $dy=(1-$aAxisAngle*2/M_PI); + if( $aAxisAngle>=M_PI/4 && $aAxisAngle <= 3*M_PI/4 ) $dy=1; + if( $aAxisAngle>=3*M_PI/4 && $aAxisAngle <= 5*M_PI/4 ) $dy=(1-($aAxisAngle-3*M_PI/4)*2/M_PI); + if( $aAxisAngle>=5*M_PI/4 && $aAxisAngle <= 7*M_PI/4 ) $dy=0; + + if( !$this->hide ) { + $this->title->Stroke($this->img,$xt-$dx*$w,$yt-$dy*$h,$title); + } + } + +} // Class + + +//=================================================== +// CLASS RadarGrid +// Description: Draws grid for the radar graph +//=================================================== +class RadarGrid { //extends Grid { + private $type='solid'; + private $grid_color='#DDDDDD'; + private $show=false, $weight=1; + + function __construct() { + // Empty + } + + function SetColor($aMajColor) { + $this->grid_color = $aMajColor; + } + + function SetWeight($aWeight) { + $this->weight=$aWeight; + } + + // Specify if grid should be dashed, dotted or solid + function SetLineStyle($aType) { + $this->type = $aType; + } + + // Decide if both major and minor grid should be displayed + function Show($aShowMajor=true) { + $this->show=$aShowMajor; + } + + function Stroke($img,$grid) { + if( !$this->show ) { + return; + } + + $nbrticks = count($grid[0])/2; + $nbrpnts = count($grid); + $img->SetColor($this->grid_color); + $img->SetLineWeight($this->weight); + + for($i=0; $i<$nbrticks; ++$i) { + for($j=0; $j<$nbrpnts; ++$j) { + $pnts[$j*2]=$grid[$j][$i*2]; + $pnts[$j*2+1]=$grid[$j][$i*2+1]; + } + for($k=0; $k<$nbrpnts; ++$k ){ + $l=($k+1)%$nbrpnts; + if( $this->type == 'solid' ) + $img->Line($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1]); + elseif( $this->type == 'dotted' ) + $img->DashedLine($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1],1,6); + elseif( $this->type == 'dashed' ) + $img->DashedLine($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1],2,4); + elseif( $this->type == 'longdashed' ) + $img->DashedLine($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1],8,6); + } + $pnts=array(); + } + } +} // Class + + +//=================================================== +// CLASS RadarPlot +// Description: Plot a radarplot +//=================================================== +class RadarPlot { + public $mark=null; + public $legend=''; + public $legendcsimtarget=''; + public $legendcsimalt=''; + public $csimtargets=array(); // Array of targets for CSIM + public $csimareas=""; // Resultant CSIM area tags + public $csimalts=null; // ALT:s for corresponding target + private $data=array(); + private $fill=false, $fill_color=array(200,170,180); + private $color=array(0,0,0); + private $weight=1; + private $linestyle='solid'; + + //--------------- + // CONSTRUCTOR + function __construct($data) { + $this->data = $data; + $this->mark = new PlotMark(); + } + + function Min() { + return Min($this->data); + } + + function Max() { + return Max($this->data); + } + + function SetLegend($legend) { + $this->legend=$legend; + } + + function SetLineStyle($aStyle) { + $this->linestyle=$aStyle; + } + + function SetLineWeight($w) { + $this->weight=$w; + } + + function SetFillColor($aColor) { + $this->fill_color = $aColor; + $this->fill = true; + } + + function SetFill($f=true) { + $this->fill = $f; + } + + function SetColor($aColor,$aFillColor=false) { + $this->color = $aColor; + if( $aFillColor ) { + $this->SetFillColor($aFillColor); + $this->fill = true; + } + } + + // Set href targets for CSIM + function SetCSIMTargets($aTargets,$aAlts=null) { + $this->csimtargets=$aTargets; + $this->csimalts=$aAlts; + } + + // Get all created areas + function GetCSIMareas() { + return $this->csimareas; + } + + function Stroke($img, $pos, $scale, $startangle) { + $nbrpnts = count($this->data); + $astep=2*M_PI/$nbrpnts; + $a=$startangle; + + for($i=0; $i<$nbrpnts; ++$i) { + + // Rotate each non null point to the correct axis-angle + $cs=$scale->RelTranslate($this->data[$i]); + $x=round($cs*cos($a)+$scale->scale_abs[0]); + $y=round($pos-$cs*sin($a)); + + $pnts[$i*2]=$x; + $pnts[$i*2+1]=$y; + + // If the next point is null then we draw this polygon segment + // to the center, skip the next and draw the next segment from + // the center up to the point on the axis with the first non-null + // value and continues from that point. Some additoinal logic is necessary + // to handle the boundary conditions + if( $i < $nbrpnts-1 ) { + if( is_null($this->data[$i+1]) ) { + $cs = 0; + $x=round($cs*cos($a)+$scale->scale_abs[0]); + $y=round($pos-$cs*sin($a)); + $pnts[$i*2]=$x; + $pnts[$i*2+1]=$y; + $a += $astep; + } + } + + $a += $astep; + } + + if( $this->fill ) { + $img->SetColor($this->fill_color); + $img->FilledPolygon($pnts); + } + + $img->SetLineWeight($this->weight); + $img->SetColor($this->color); + $img->SetLineStyle($this->linestyle); + $pnts[] = $pnts[0]; + $pnts[] = $pnts[1]; + $img->Polygon($pnts); + $img->SetLineStyle('solid'); // Reset line style to default + + // Add plotmarks on top + if( $this->mark->show ) { + for($i=0; $i < $nbrpnts; ++$i) { + if( isset($this->csimtargets[$i]) ) { + $this->mark->SetCSIMTarget($this->csimtargets[$i]); + $this->mark->SetCSIMAlt($this->csimalts[$i]); + $this->mark->SetCSIMAltVal($pnts[$i*2], $pnts[$i*2+1]); + $this->mark->Stroke($img, $pnts[$i*2], $pnts[$i*2+1]); + $this->csimareas .= $this->mark->GetCSIMAreas(); + } + else { + $this->mark->Stroke($img,$pnts[$i*2],$pnts[$i*2+1]); + } + } + } + + } + + function GetCount() { + return count($this->data); + } + + function Legend($graph) { + if( $this->legend == '' ) { + return; + } + if( $this->fill ) { + $graph->legend->Add($this->legend,$this->fill_color,$this->mark); + } else { + $graph->legend->Add($this->legend,$this->color,$this->mark); + } + } + +} // Class + +//=================================================== +// CLASS RadarGraph +// Description: Main container for a radar graph +//=================================================== +class RadarGraph extends Graph { + public $grid,$axis=null; + private $posx,$posy; + private $len; + private $axis_title=null; + + function __construct($width=300,$height=200,$cachedName="",$timeout=0,$inline=1) { + parent::__construct($width,$height,$cachedName,$timeout,$inline); + $this->posx = $width/2; + $this->posy = $height/2; + $this->len = min($width,$height)*0.35; + $this->SetColor(array(255,255,255)); + $this->SetTickDensity(TICKD_NORMAL); + $this->SetScale('lin'); + $this->SetGridDepth(DEPTH_FRONT); + } + + function HideTickMarks($aFlag=true) { + $this->axis->scale->ticks->SupressTickMarks($aFlag); + } + + function ShowMinorTickmarks($aFlag=true) { + $this->yscale->ticks->SupressMinorTickMarks(!$aFlag); + } + + function SetScale($axtype,$ymin=1,$ymax=1,$dummy1=null,$dumy2=null) { + if( $axtype != 'lin' && $axtype != 'log' ) { + JpGraphError::RaiseL(18003,$axtype); + //("Illegal scale for radarplot ($axtype). Must be \"lin\" or \"log\""); + } + if( $axtype == 'lin' ) { + $this->yscale = new LinearScale($ymin,$ymax); + $this->yscale->ticks = new RadarLinearTicks(); + $this->yscale->ticks->SupressMinorTickMarks(); + } + elseif( $axtype == 'log' ) { + $this->yscale = new LogScale($ymin,$ymax); + $this->yscale->ticks = new RadarLogTicks(); + } + + $this->axis = new RadarAxis($this->img,$this->yscale); + $this->grid = new RadarGrid(); + } + + function SetSize($aSize) { + if( $aSize < 0.1 || $aSize>1 ) { + JpGraphError::RaiseL(18004,$aSize); + //("Radar Plot size must be between 0.1 and 1. (Your value=$s)"); + } + $this->len=min($this->img->width,$this->img->height)*$aSize/2; + } + + function SetPlotSize($aSize) { + $this->SetSize($aSize); + } + + function SetTickDensity($densy=TICKD_NORMAL,$dummy1=null) { + $this->ytick_factor=25; + switch( $densy ) { + case TICKD_DENSE: + $this->ytick_factor=12; + break; + case TICKD_NORMAL: + $this->ytick_factor=25; + break; + case TICKD_SPARSE: + $this->ytick_factor=40; + break; + case TICKD_VERYSPARSE: + $this->ytick_factor=70; + break; + default: + JpGraphError::RaiseL(18005,$densy); + //("RadarPlot Unsupported Tick density: $densy"); + } + } + + function SetPos($px,$py=0.5) { + $this->SetCenter($px,$py); + } + + function SetCenter($px,$py=0.5) { + if( $px >= 0 && $px <= 1 ) { + $this->posx = $this->img->width*$px; + } + else { + $this->posx = $px; + } + if( $py >= 0 && $py <= 1 ) { + $this->posy = $this->img->height*$py; + } + else { + $this->posy = $py; + } + } + + function SetColor($aColor) { + $this->SetMarginColor($aColor); + } + + function SetTitles($aTitleArray) { + $this->axis_title = $aTitleArray; + } + + function Add($aPlot) { + if( $aPlot == null ) { + JpGraphError::RaiseL(25010);//("Graph::Add() You tried to add a null plot to the graph."); + } + if( is_array($aPlot) && count($aPlot) > 0 ) { + $cl = $aPlot[0]; + } + else { + $cl = $aPlot; + } + + if( $cl instanceof Text ) $this->AddText($aPlot); + elseif( class_exists('IconPlot',false) && ($cl instanceof IconPlot) ) $this->AddIcon($aPlot); + else { + $this->plots[] = $aPlot; + } + } + + function GetPlotsYMinMax($aPlots) { + $min=$aPlots[0]->Min(); + $max=$aPlots[0]->Max(); + foreach( $this->plots as $p ) { + $max=max($max,$p->Max()); + $min=min($min,$p->Min()); + } + if( $min < 0 ) { + JpGraphError::RaiseL(18006,$min); + //("Minimum data $min (Radar plots should only be used when all data points > 0)"); + } + return array($min,$max); + } + + function StrokeIcons() { + if( $this->iIcons != null ) { + $n = count($this->iIcons); + for( $i=0; $i < $n; ++$i ) { + $this->iIcons[$i]->Stroke($this->img); + } + } + } + + function StrokeTexts() { + if( $this->texts != null ) { + $n = count($this->texts); + for( $i=0; $i < $n; ++$i ) { + $this->texts[$i]->Stroke($this->img); + } + } + } + + // Stroke the Radar graph + function Stroke($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 ); + + // 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); + // Set Y-scale + + if( !$this->yscale->IsSpecified() && count($this->plots) > 0 ) { + list($min,$max) = $this->GetPlotsYMinMax($this->plots); + $this->yscale->AutoScale($this->img,0,$max,$this->len/$this->ytick_factor); + } + elseif( $this->yscale->IsSpecified() && + ( $this->yscale->auto_ticks || !$this->yscale->ticks->IsSpecified()) ) { + + // 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 = $this->yscale->scale[0]; + $max = $this->yscale->scale[1]; + $this->yscale->AutoScale($this->img,$min,$max, + $this->len/$this->ytick_factor, + $this->yscale->auto_ticks); + } + + // Set start position end length of scale (in absolute pixels) + $this->yscale->SetConstants($this->posx,$this->len); + + // We need as many axis as there are data points + $nbrpnts=$this->plots[0]->GetCount(); + + // If we have no titles just number the axis 1,2,3,... + if( $this->axis_title==null ) { + for($i=0; $i < $nbrpnts; ++$i ) { + $this->axis_title[$i] = $i+1; + } + } + elseif( count($this->axis_title) < $nbrpnts) { + JpGraphError::RaiseL(18007); + // ("Number of titles does not match number of points in plot."); + } + for( $i=0; $i < $n; ++$i ) { + if( $nbrpnts != $this->plots[$i]->GetCount() ) { + JpGraphError::RaiseL(18008); + //("Each radar plot must have the same number of data points."); + } + } + + if( !$_csim ) { + if( $this->background_image != '' ) { + $this->StrokeFrameBackground(); + } + else { + $this->StrokeFrame(); + $this->StrokeBackgroundGrad(); + } + } + $astep=2*M_PI/$nbrpnts; + + if( !$_csim ) { + if( $this->iIconDepth == DEPTH_BACK ) { + $this->StrokeIcons(); + } + + + // Prepare legends + for($i=0; $i < $n; ++$i) { + $this->plots[$i]->Legend($this); + } + $this->legend->Stroke($this->img); + $this->footer->Stroke($this->img); + } + + if( !$_csim ) { + if( $this->grid_depth == DEPTH_BACK ) { + // Draw axis and grid + for( $i=0,$a=M_PI/2; $i < $nbrpnts; ++$i, $a += $astep ) { + $this->axis->Stroke($this->posy,$a,$grid[$i],$this->axis_title[$i],$i==0); + } + $this->grid->Stroke($this->img,$grid); + } + if( $this->iIconDepth == DEPTH_BACK ) { + $this->StrokeIcons(); + } + + } + + // Plot points + $a=M_PI/2; + for($i=0; $i < $n; ++$i ) { + $this->plots[$i]->Stroke($this->img, $this->posy, $this->yscale, $a); + } + + if( !$_csim ) { + if( $this->grid_depth != DEPTH_BACK ) { + // Draw axis and grid + for( $i=0,$a=M_PI/2; $i < $nbrpnts; ++$i, $a += $astep ) { + $this->axis->Stroke($this->posy,$a,$grid[$i],$this->axis_title[$i],$i==0); + } + $this->grid->Stroke($this->img,$grid); + } + + $this->StrokeTitles(); + $this->StrokeTexts(); + if( $this->iIconDepth == DEPTH_FRONT ) { + $this->StrokeIcons(); + } + } + + // Should we do any final image transformation + if( $this->iImgTrans && !$_csim ) { + if( !class_exists('ImgTrans',false) ) { + require_once('jpgraph_imgtrans.php'); + } + + $tform = new ImgTrans($this->img->img); + $this->img->img = $tform->Skew3D($this->iImgTransHorizon,$this->iImgTransSkewDist, + $this->iImgTransDirection,$this->iImgTransHighQ, + $this->iImgTransMinSize,$this->iImgTransFillColor, + $this->iImgTransBorder); + } + + if( !$_csim ) { + // 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 */ +?> |