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<?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) Aditus Consulting. 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 */
?>
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