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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) 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 */
-?>