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647 lines
No EOL
19 KiB
PHP
647 lines
No EOL
19 KiB
PHP
<?php
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/*=======================================================================
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// File: JPGRAPH_RADAR.PHP
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// Description: Radar plot extension for JpGraph
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// Created: 2001-02-04
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// Author: Johan Persson (johanp@aditus.nu)
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// Ver: $Id: jpgraph_radar.php,v 1.1 2006/07/07 13:37:14 powles Exp $
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//
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// Copyright (c) Aditus Consulting. All rights reserved.
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//========================================================================
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*/
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require_once('jpgraph_plotmark.inc');
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class RadarLogTicks extends Ticks {
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//---------------
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// CONSTRUCTOR
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function RadarLogTicks() {
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}
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//---------------
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// PUBLIC METHODS
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// TODO: Add Argument grid
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function Stroke(&$aImg,&$grid,$aPos,$aAxisAngle,&$aScale,&$aMajPos,&$aMajLabel) {
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$start = $aScale->GetMinVal();
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$limit = $aScale->GetMaxVal();
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$nextMajor = 10*$start;
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$step = $nextMajor / 10.0;
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$count=1;
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$ticklen_maj=5;
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$dx_maj=round(sin($aAxisAngle)*$ticklen_maj);
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$dy_maj=round(cos($aAxisAngle)*$ticklen_maj);
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$ticklen_min=3;
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$dx_min=round(sin($aAxisAngle)*$ticklen_min);
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$dy_min=round(cos($aAxisAngle)*$ticklen_min);
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$aMajPos=array();
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$aMajLabel=array();
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if( $this->supress_first )
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$aMajLabel[]="";
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else
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$aMajLabel[]=$start;
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$yr=$aScale->RelTranslate($start);
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$xt=round($yr*cos($aAxisAngle))+$aScale->scale_abs[0];
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$yt=$aPos-round($yr*sin($aAxisAngle));
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$aMajPos[]=$xt+2*$dx_maj;
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$aMajPos[]=$yt-$aImg->GetFontheight()/2;
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$grid[]=$xt;
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$grid[]=$yt;
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$aImg->SetLineWeight($this->weight);
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for($y=$start; $y<=$limit; $y+=$step,++$count ) {
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$yr=$aScale->RelTranslate($y);
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$xt=round($yr*cos($aAxisAngle))+$aScale->scale_abs[0];
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$yt=$aPos-round($yr*sin($aAxisAngle));
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if( $count % 10 == 0 ) {
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$grid[]=$xt;
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$grid[]=$yt;
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$aMajPos[]=$xt+2*$dx_maj;
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$aMajPos[]=$yt-$aImg->GetFontheight()/2;
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if( !$this->supress_tickmarks ) {
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if( $this->majcolor!="" ) $aImg->PushColor($this->majcolor);
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$aImg->Line($xt+$dx_maj,$yt+$dy_maj,$xt-$dx_maj,$yt-$dy_maj);
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if( $this->majcolor!="" ) $aImg->PopColor();
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}
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if( $this->label_formfunc != "" ) {
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$f=$this->label_formfunc;
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$l = call_user_func($f,$nextMajor);
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}
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else
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$l = $nextMajor;
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$aMajLabel[]=$l;
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$nextMajor *= 10;
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$step *= 10;
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$count=1;
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}
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else
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if( !$this->supress_minor_tickmarks ) {
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if( $this->mincolor!="" ) $aImg->PushColor($this->mincolor);
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$aImg->Line($xt+$dx_min,$yt+$dy_min,$xt-$dx_min,$yt-$dy_min);
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if( $this->mincolor!="" ) $aImg->PopColor();
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}
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}
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}
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}
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class RadarLinearTicks extends LinearTicks {
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//---------------
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// CONSTRUCTOR
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function RadarLinearTicks() {
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// Empty
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}
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//---------------
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// PUBLIC METHODS
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// TODO: Add argument grid
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function Stroke(&$aImg,&$grid,$aPos,$aAxisAngle,&$aScale,&$aMajPos,&$aMajLabel) {
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// Prepare to draw linear ticks
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$maj_step_abs = abs($aScale->scale_factor*$this->major_step);
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$min_step_abs = abs($aScale->scale_factor*$this->minor_step);
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$nbrmaj = floor(($aScale->world_abs_size)/$maj_step_abs);
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$nbrmin = floor(($aScale->world_abs_size)/$min_step_abs);
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$skip = round($nbrmin/$nbrmaj); // Don't draw minor ontop of major
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// Draw major ticks
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$ticklen2=$this->major_abs_size;
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$dx=round(sin($aAxisAngle)*$ticklen2);
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$dy=round(cos($aAxisAngle)*$ticklen2);
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$label=$aScale->scale[0]+$this->major_step;
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$aImg->SetLineWeight($this->weight);
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for($i=1; $i<=$nbrmaj; ++$i) {
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$xt=round($i*$maj_step_abs*cos($aAxisAngle))+$aScale->scale_abs[0];
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$yt=$aPos-round($i*$maj_step_abs*sin($aAxisAngle));
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if( $this->label_formfunc != "" ) {
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$f=$this->label_formfunc;
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$l = call_user_func($f,$label);
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}
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else
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$l = $label;
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$aMajLabel[]=$l;
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$label += $this->major_step;
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$grid[]=$xt;
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$grid[]=$yt;
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$aMajPos[($i-1)*2]=$xt+2*$dx;
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$aMajPos[($i-1)*2+1]=$yt-$aImg->GetFontheight()/2;
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if( !$this->supress_tickmarks ) {
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if( $this->majcolor!="" ) $aImg->PushColor($this->majcolor);
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$aImg->Line($xt+$dx,$yt+$dy,$xt-$dx,$yt-$dy);
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if( $this->majcolor!="" ) $aImg->PopColor();
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}
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}
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// Draw minor ticks
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$ticklen2=$this->minor_abs_size;
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$dx=round(sin($aAxisAngle)*$ticklen2);
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$dy=round(cos($aAxisAngle)*$ticklen2);
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if( !$this->supress_tickmarks && !$this->supress_minor_tickmarks) {
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if( $this->mincolor!="" ) $aImg->PushColor($this->mincolor);
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for($i=1; $i<=$nbrmin; ++$i) {
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if( ($i % $skip) == 0 ) continue;
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$xt=round($i*$min_step_abs*cos($aAxisAngle))+$aScale->scale_abs[0];
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$yt=$aPos-round($i*$min_step_abs*sin($aAxisAngle));
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$aImg->Line($xt+$dx,$yt+$dy,$xt-$dx,$yt-$dy);
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}
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if( $this->mincolor!="" ) $aImg->PopColor();
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}
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}
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}
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//===================================================
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// CLASS RadarAxis
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// Description: Implements axis for the radar graph
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//===================================================
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class RadarAxis extends Axis {
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var $title_color="navy";
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var $title=null;
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//---------------
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// CONSTRUCTOR
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function RadarAxis(&$img,&$aScale,$color=array(0,0,0)) {
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parent::Axis($img,$aScale,$color);
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$this->len=$img->plotheight;
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$this->title = new Text();
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$this->title->SetFont(FF_FONT1,FS_BOLD);
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$this->color = array(0,0,0);
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}
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//---------------
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// PUBLIC METHODS
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function SetTickLabels($l) {
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$this->ticks_label = $l;
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}
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// Stroke the axis
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// $pos = Vertical position of axis
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// $aAxisAngle = Axis angle
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// $grid = Returns an array with positions used to draw the grid
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// $lf = Label flag, TRUE if the axis should have labels
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function Stroke($pos,$aAxisAngle,&$grid,$title,$lf) {
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$this->img->SetColor($this->color);
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// Determine end points for the axis
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$x=round($this->scale->world_abs_size*cos($aAxisAngle)+$this->scale->scale_abs[0]);
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$y=round($pos-$this->scale->world_abs_size*sin($aAxisAngle));
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// Draw axis
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$this->img->SetColor($this->color);
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$this->img->SetLineWeight($this->weight);
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if( !$this->hide )
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$this->img->Line($this->scale->scale_abs[0],$pos,$x,$y);
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$this->scale->ticks->Stroke($this->img,$grid,$pos,$aAxisAngle,$this->scale,$majpos,$majlabel);
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// Draw labels
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if( $lf && !$this->hide ) {
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$this->img->SetFont($this->font_family,$this->font_style,$this->font_size);
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$this->img->SetTextAlign("left","top");
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$this->img->SetColor($this->label_color);
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// majpos contains (x,y) coordinates for labels
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if( ! $this->hide_labels ) {
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$n = floor(count($majpos)/2);
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for($i=0; $i < $n; ++$i) {
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if( $this->ticks_label != null && isset($this->ticks_label[$i]) )
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$this->img->StrokeText($majpos[$i*2],$majpos[$i*2+1],$this->ticks_label[$i]);
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else
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$this->img->StrokeText($majpos[$i*2],$majpos[$i*2+1],$majlabel[$i]);
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}
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}
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}
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$this->_StrokeAxisTitle($pos,$aAxisAngle,$title);
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}
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//---------------
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// PRIVATE METHODS
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function _StrokeAxisTitle($pos,$aAxisAngle,$title) {
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$this->title->Set($title);
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$marg=6+$this->title->margin;
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$xt=round(($this->scale->world_abs_size+$marg)*cos($aAxisAngle)+$this->scale->scale_abs[0]);
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$yt=round($pos-($this->scale->world_abs_size+$marg)*sin($aAxisAngle));
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// Position the axis title.
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// dx, dy is the offset from the top left corner of the bounding box that sorrounds the text
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// that intersects with the extension of the corresponding axis. The code looks a little
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// bit messy but this is really the only way of having a reasonable position of the
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// axis titles.
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if( $this->title->iWordwrap > 0 ) {
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$title = wordwrap($title,$this->title->iWordwrap,"\n");
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}
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$h=$this->img->GetTextHeight($title)*1.2;
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$w=$this->img->GetTextWidth($title)*1.2;
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while( $aAxisAngle > 2*M_PI ) $aAxisAngle -= 2*M_PI;
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if( $aAxisAngle>=7*M_PI/4 || $aAxisAngle <= M_PI/4 ) $dx=0;
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if( $aAxisAngle>=M_PI/4 && $aAxisAngle <= 3*M_PI/4 ) $dx=($aAxisAngle-M_PI/4)*2/M_PI;
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if( $aAxisAngle>=3*M_PI/4 && $aAxisAngle <= 5*M_PI/4 ) $dx=1;
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if( $aAxisAngle>=5*M_PI/4 && $aAxisAngle <= 7*M_PI/4 ) $dx=(1-($aAxisAngle-M_PI*5/4)*2/M_PI);
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if( $aAxisAngle>=7*M_PI/4 ) $dy=(($aAxisAngle-M_PI)-3*M_PI/4)*2/M_PI;
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if( $aAxisAngle<=M_PI/4 ) $dy=(1-$aAxisAngle*2/M_PI);
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if( $aAxisAngle>=M_PI/4 && $aAxisAngle <= 3*M_PI/4 ) $dy=1;
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if( $aAxisAngle>=3*M_PI/4 && $aAxisAngle <= 5*M_PI/4 ) $dy=(1-($aAxisAngle-3*M_PI/4)*2/M_PI);
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if( $aAxisAngle>=5*M_PI/4 && $aAxisAngle <= 7*M_PI/4 ) $dy=0;
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if( !$this->hide ) {
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$this->title->Stroke($this->img,$xt-$dx*$w,$yt-$dy*$h,$title);
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}
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}
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} // Class
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//===================================================
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// CLASS RadarGrid
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// Description: Draws grid for the radar graph
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//===================================================
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class RadarGrid extends Grid {
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//------------
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// CONSTRUCTOR
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function RadarGrid() {
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}
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//----------------
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// PRIVATE METHODS
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function Stroke(&$img,&$grid) {
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if( !$this->show ) return;
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$nbrticks = count($grid[0])/2;
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$nbrpnts = count($grid);
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$img->SetColor($this->grid_color);
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$img->SetLineWeight($this->weight);
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for($i=0; $i<$nbrticks; ++$i) {
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for($j=0; $j<$nbrpnts; ++$j) {
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$pnts[$j*2]=$grid[$j][$i*2];
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$pnts[$j*2+1]=$grid[$j][$i*2+1];
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}
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for($k=0; $k<$nbrpnts; ++$k ){
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$l=($k+1)%$nbrpnts;
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if( $this->type == "solid" )
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$img->Line($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1]);
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elseif( $this->type == "dotted" )
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$img->DashedLine($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1],1,6);
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elseif( $this->type == "dashed" )
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$img->DashedLine($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1],2,4);
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elseif( $this->type == "longdashed" )
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$img->DashedLine($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1],8,6);
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}
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$pnts=array();
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}
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}
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} // Class
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//===================================================
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// CLASS RadarPlot
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// Description: Plot a radarplot
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//===================================================
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class RadarPlot {
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var $data=array();
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var $fill=false, $fill_color=array(200,170,180);
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var $color=array(0,0,0);
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var $legend="";
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var $weight=1;
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var $linestyle='solid';
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var $mark=null;
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//---------------
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// CONSTRUCTOR
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function RadarPlot($data) {
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$this->data = $data;
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$this->mark = new PlotMark();
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}
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//---------------
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// PUBLIC METHODS
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function Min() {
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return Min($this->data);
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}
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function Max() {
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return Max($this->data);
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}
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function SetLegend($legend) {
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$this->legend=$legend;
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}
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function SetLineStyle($aStyle) {
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$this->linestyle=$aStyle;
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}
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function SetLineWeight($w) {
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$this->weight=$w;
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}
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function SetFillColor($aColor) {
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$this->fill_color = $aColor;
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$this->fill = true;
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}
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function SetFill($f=true) {
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$this->fill = $f;
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}
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function SetColor($aColor,$aFillColor=false) {
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$this->color = $aColor;
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if( $aFillColor ) {
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$this->SetFillColor($aFillColor);
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$this->fill = true;
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}
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}
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function GetCSIMareas() {
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JpGraphError::RaiseL(18001);
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//("Client side image maps not supported for RadarPlots.");
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}
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function Stroke(&$img, $pos, &$scale, $startangle) {
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$nbrpnts = count($this->data);
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$astep=2*M_PI/$nbrpnts;
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$a=$startangle;
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// Rotate each point to the correct axis-angle
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// TODO: Update for LogScale
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for($i=0; $i<$nbrpnts; ++$i) {
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//$c=$this->data[$i];
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$cs=$scale->RelTranslate($this->data[$i]);
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$x=round($cs*cos($a)+$scale->scale_abs[0]);
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$y=round($pos-$cs*sin($a));
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/*
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$c=log10($c);
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$x=round(($c-$scale->scale[0])*$scale->scale_factor*cos($a)+$scale->scale_abs[0]);
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$y=round($pos-($c-$scale->scale[0])*$scale->scale_factor*sin($a));
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*/
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$pnts[$i*2]=$x;
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$pnts[$i*2+1]=$y;
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$a += $astep;
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}
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if( $this->fill ) {
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$img->SetColor($this->fill_color);
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$img->FilledPolygon($pnts);
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}
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$img->SetLineWeight($this->weight);
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$img->SetColor($this->color);
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$img->SetLineStyle($this->linestyle);
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$pnts[]=$pnts[0];
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$pnts[]=$pnts[1];
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$img->Polygon($pnts);
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$img->SetLineStyle('solid'); // Reset line style to default
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// Add plotmarks on top
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if( $this->mark->show ) {
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for($i=0; $i < $nbrpnts; ++$i) {
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$this->mark->Stroke($img,$pnts[$i*2],$pnts[$i*2+1]);
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}
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}
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}
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//---------------
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// PRIVATE METHODS
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function GetCount() {
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return count($this->data);
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}
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function Legend(&$graph) {
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if( $this->legend=="" ) return;
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if( $this->fill )
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$graph->legend->Add($this->legend,$this->fill_color,$this->mark);
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else
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$graph->legend->Add($this->legend,$this->color,$this->mark);
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}
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} // Class
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//===================================================
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// CLASS RadarGraph
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// Description: Main container for a radar graph
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//===================================================
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class RadarGraph extends Graph {
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var $posx;
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var $posy;
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var $len;
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var $plots=null, $axis_title=null;
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var $grid,$axis=null;
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//---------------
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// CONSTRUCTOR
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function RadarGraph($width=300,$height=200,$cachedName="",$timeout=0,$inline=1) {
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$this->Graph($width,$height,$cachedName,$timeout,$inline);
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$this->posx=$width/2;
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$this->posy=$height/2;
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$this->len=min($width,$height)*0.35;
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$this->SetColor(array(255,255,255));
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$this->SetTickDensity(TICKD_NORMAL);
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$this->SetScale("lin");
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$this->SetGridDepth(DEPTH_FRONT);
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}
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//---------------
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// PUBLIC METHODS
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function SupressTickMarks($f=true) {
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if( ERR_DEPRECATED )
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JpGraphError::RaiseL(18002);
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//('RadarGraph::SupressTickMarks() is deprecated. Use HideTickMarks() instead.');
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$this->axis->scale->ticks->SupressTickMarks($f);
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}
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function HideTickMarks($aFlag=true) {
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$this->axis->scale->ticks->SupressTickMarks($aFlag);
|
|
}
|
|
|
|
function ShowMinorTickmarks($aFlag=true) {
|
|
$this->yscale->ticks->SupressMinorTickMarks(!$aFlag);
|
|
}
|
|
|
|
function SetScale($axtype,$ymin=1,$ymax=1) {
|
|
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) {
|
|
$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,$py=0.5) {
|
|
assert($px > 0 && $py > 0 );
|
|
$this->posx=$this->img->width*$px;
|
|
$this->posy=$this->img->height*$py;
|
|
}
|
|
|
|
function SetColor($c) {
|
|
$this->SetMarginColor($c);
|
|
}
|
|
|
|
function SetTitles($title) {
|
|
$this->axis_title = $title;
|
|
}
|
|
|
|
function Add(&$splot) {
|
|
$this->plots[]=$splot;
|
|
}
|
|
|
|
function GetPlotsYMinMax() {
|
|
$min=$this->plots[0]->Min();
|
|
$max=$this->plots[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,$max);
|
|
}
|
|
|
|
// Stroke the Radar graph
|
|
function Stroke($aStrokeFileName="") {
|
|
$n = count($this->plots);
|
|
// Set Y-scale
|
|
if( !$this->yscale->IsSpecified() && count($this->plots)>0 ) {
|
|
list($min,$max) = $this->GetPlotsYMinMax();
|
|
$this->yscale->AutoScale($this->img,0,$max,$this->len/$this->ytick_factor);
|
|
}
|
|
// 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( $this->background_image != "" ) {
|
|
$this->StrokeFrameBackground();
|
|
}
|
|
else {
|
|
$this->StrokeFrame();
|
|
}
|
|
$astep=2*M_PI/$nbrpnts;
|
|
|
|
// Prepare legends
|
|
for($i=0; $i < $n; ++$i)
|
|
$this->plots[$i]->Legend($this);
|
|
$this->legend->Stroke($this->img);
|
|
$this->footer->Stroke($this->img);
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
// Plot points
|
|
$a=M_PI/2;
|
|
for($i=0; $i < $n; ++$i )
|
|
$this->plots[$i]->Stroke($this->img, $this->posy, $this->yscale, $a);
|
|
|
|
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();
|
|
|
|
// Stroke texts
|
|
if( $this->texts != null ) {
|
|
foreach( $this->texts as $t)
|
|
$t->Stroke($this->img);
|
|
}
|
|
|
|
// Should we do any final image transformation
|
|
if( $this->iImgTrans ) {
|
|
if( !class_exists('ImgTrans') ) {
|
|
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 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 */
|
|
?>
|