jpgraph_pie.php
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上传日期:2010-02-11
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- <?php
- /*=======================================================================
- // File: JPGRAPH_PIE.PHP
- // Description: Pie plot extension for JpGraph
- // Created: 2001-02-14
- // Author: Johan Persson (johanp@aditus.nu)
- // Ver: $Id: jpgraph_pie.php,v 1.5 2003/10/10 03:37:56 wwf Exp $
- //
- // License: This code is released under QPL
- // Copyright (C) 2001,2002 Johan Persson
- //========================================================================
- */
- // Defines for PiePlot::SetLabelType()
- DEFINE("PIE_VALUE_ABS",1);
- DEFINE("PIE_VALUE_PER",0);
- DEFINE("PIE_VALUE_PERCENTAGE",0);
- //===================================================
- // CLASS PiePlot
- // Description: Draws a pie plot
- //===================================================
- class PiePlot {
- var $posx=0.5,$posy=0.5;
- var $radius=0.3;
- var $explode_radius=array(),$explode_all=false,$explode_r=20;
- var $labels=null, $legends=null;
- var $csimtargets=null; // Array of targets for CSIM
- var $csimareas=''; // Generated CSIM text
- var $csimalts=null; // ALT tags for corresponding target
- var $data=null;
- var $title;
- var $startangle=0;
- var $weight=1, $color="black";
- var $legend_margin=6,$show_labels=true;
- var $themearr = array(
- "earth" => array(136,34,40,45,46,62,63,134,74,10,120,136,141,168,180,77,209,218,346,395,89,430),
- "pastel" => array(27,415,128,59,66,79,105,110,42,147,152,230,236,240,331,337,405,38),
- "water" => array(8,370,24,40,335,56,213,237,268,14,326,387,10,388),
- "sand" => array(27,168,34,170,19,50,65,72,131,209,46,393));
- var $theme="earth";
- var $setslicecolors=array();
- var $labeltype=0; // Default to percentage
- var $pie_border=true,$pie_interior_border=true;
- var $value;
- var $ishadowcolor='',$ishadowdrop=4;
- var $ilabelposadj=1;
- var $legendcsimtargets = array();
- var $legendcsimalts = array();
-
- //---------------
- // CONSTRUCTOR
- function PiePlot($data) {
- $this->data = array_reverse($data);
- $this->title = new Text("");
- $this->title->SetFont(FF_FONT1,FS_BOLD);
- $this->value = new DisplayValue();
- $this->value->Show();
- $this->value->SetFormat('%.1f%%');
- }
- //---------------
- // PUBLIC METHODS
- function SetCenter($x,$y=0.5) {
- $this->posx = $x;
- $this->posy = $y;
- }
- function SetColor($aColor) {
- $this->color = $aColor;
- }
-
- function SetSliceColors($aColors) {
- $this->setslicecolors = $aColors;
- }
-
- function SetShadow($aColor='darkgray',$aDropWidth=4) {
- $this->ishadowcolor = $aColor;
- $this->ishadowdrop = $aDropWidth;
- }
- function SetCSIMTargets($targets,$alts=null) {
- $this->csimtargets=array_reverse($targets);
- if( is_array($alts) )
- $this->csimalts=array_reverse($alts);
- }
-
- function GetCSIMareas() {
- return $this->csimareas;
- }
- function AddSliceToCSIM($i,$xc,$yc,$radius,$sa,$ea) {
- //Slice number, ellipse centre (x,y), height, width, start angle, end angle
- while( $sa > 2*M_PI ) $sa = $sa - 2*M_PI;
- while( $ea > 2*M_PI ) $ea = $ea - 2*M_PI;
- $sa = 2*M_PI - $sa;
- $ea = 2*M_PI - $ea;
- //add coordinates of the centre to the map
- $coords = "$xc, $yc";
- //add coordinates of the first point on the arc to the map
- $xp = floor(($radius*cos($ea))+$xc);
- $yp = floor($yc-$radius*sin($ea));
- $coords.= ", $xp, $yp";
-
- //add coordinates every 0.2 radians
- $a=$ea+0.2;
- while ($a<$sa) {
- $xp = floor($radius*cos($a)+$xc);
- $yp = floor($yc-$radius*sin($a));
- $coords.= ", $xp, $yp";
- $a += 0.2;
- }
-
- //Add the last point on the arc
- $xp = floor($radius*cos($sa)+$xc);
- $yp = floor($yc-$radius*sin($sa));
- $coords.= ", $xp, $yp";
- if( !empty($this->csimtargets[$i]) )
- $this->csimareas .= "<area shape="poly" coords="$coords" href="".
- $this->csimtargets[$i].""";
- if( !empty($this->csimalts[$i]) ) {
- $tmp=sprintf($this->csimalts[$i],$this->data[$i]);
- $this->csimareas .= " alt="$tmp" title="$tmp"";
- }
- $this->csimareas .= ">n";
- }
-
- function SetTheme($aTheme) {
- if( in_array($aTheme,array_keys($this->themearr)) )
- $this->theme = $aTheme;
- else
- JpGraphError::Raise("PiePLot::SetTheme() Unknown theme: $aTheme");
- }
-
- function ExplodeSlice($e,$radius=20) {
- $this->explode_radius[$e]=$radius;
- }
- function ExplodeAll($radius=20) {
- $this->explode_all=true;
- $this->explode_r = $radius;
- }
- function Explode($aExplodeArr) {
- if( !is_array($aExplodeArr) ) {
- JpGraphError::Raise("Argument to PiePlot::Explode() must be an array.");
- }
- $this->explode_radius = $aExplodeArr;
- }
- function SetStartAngle($aStart) {
- if( $aStart < 0 || $aStart > 360 ) {
- JpGraphError::Raise('Slice start angle must be between 0 and 360 degrees.');
- }
- $this->startangle = 360-$aStart;
- }
-
- function SetFont($family,$style=FS_NORMAL,$size=10) {
- JpGraphError::Raise('PiePlot::SetFont() is deprecated. Use PiePlot->value->SetFont() instead.');
- }
-
- // Size in percentage
- function SetSize($aSize) {
- if( ($aSize>0 && $aSize<=0.5) || ($aSize>10 && $aSize<1000) )
- $this->radius = $aSize;
- else
- JpGraphError::Raise("PiePlot::SetSize() Radius for pie must either be specified as a fraction
- [0, 0.5] of the size of the image or as an absolute size in pixels
- in the range [10, 1000]");
- }
-
- function SetFontColor($aColor) {
- JpGraphError::Raise('PiePlot::SetFontColor() is deprecated. Use PiePlot->value->SetColor() instead.');
- }
-
- // Set label arrays
- function SetLegends($aLegend) {
- $this->legends = $aLegend;
- }
- // Set text labels for slices
- function SetLabels($aLabels,$aLblPosAdj="auto") {
- $this->labels = array_reverse($aLabels);
- $this->ilabelposadj=$aLblPosAdj;
- }
- function SetLabelPos($aLblPosAdj) {
- $this->ilabelposadj=$aLblPosAdj;
- }
-
- // Should we display actual value or percentage?
- function SetLabelType($t) {
- if( $t<0 || $t>1 )
- JpGraphError::Raise("PiePlot::SetLabelType() Type for pie plots must be 0 or 1 (not $t).");
- $this->labeltype=$t;
- }
- function SetValueType($aType) {
- $this->SetLabelType($aType);
- }
- // Should the circle around a pie plot be displayed
- function ShowBorder($exterior=true,$interior=true) {
- $this->pie_border = $exterior;
- $this->pie_interior_border = $interior;
- }
-
- // Setup the legends
- function Legend(&$graph) {
- $colors = array_keys($graph->img->rgb->rgb_table);
- sort($colors);
- $ta=$this->themearr[$this->theme];
- $n = count($this->data);
- if( $this->setslicecolors==null )
- $numcolors=count($ta);
- else {
- $this->setslicecolors = array_slice($this->setslicecolors,0,$n);
- $numcolors=$n;
- if( $graph->pieaa && get_class($this)==='pieplot' ) {
- $this->setslicecolors = array_reverse($this->setslicecolors);
- }
- }
-
- $sum=0;
- for($i=0; $i < $n; ++$i)
- $sum += $this->data[$i];
- // Bail out with error if the sum is 0
- if( $sum==0 )
- JpGraphError::Raise("Illegal pie plot. Sum of all data is zero for Pie!");
- // Make sure we don't plot more values than data points
- // (in case the user added more legends than data points)
- $n = min(count($this->legends),count($this->data));
- if( $this->legends != "" )
- $this->legends = array_reverse($this->legends);
- for( $i=$n-1; $i >= 0; --$i ) {
- $l = $this->legends[$i];
- // Replace possible format with actual values
- if( $this->labeltype==0 ) {
- $l = sprintf($l,100*$this->data[$i]/$sum);
- }
- else {
- $l = sprintf($l,$this->data[$i]);
- }
-
- $alt = sprintf($this->csimalts[$i],$this->data[$i]);
-
- if( $this->setslicecolors==null )
- $graph->legend->Add($l,$colors[$ta[$i%$numcolors]],"",0,
- $this->csimtargets[$i],$alt);
- else
- $graph->legend->Add($l,$this->setslicecolors[$i%$numcolors],"",0,
- $this->csimtargets[$i],$alt);
- }
- }
-
- function Stroke(&$img,$aaoption=0) {
- // aaoption is used to handle antialias
- // aaoption == 0 a normal pie
- // aaoption == 1 just the body
- // aaoption == 2 just the values
- // Explode scaling. If anti anti alias we scale the image
- // twice and we also need to scale the exploding distance
- $expscale = $aaoption === 1 ? 2 : 1;
- $colors = array_keys($img->rgb->rgb_table);
- sort($colors);
- $ta=$this->themearr[$this->theme];
- $n = count($this->data);
-
- if( $this->setslicecolors==null )
- $numcolors=count($ta);
- else {
- $this->setslicecolors = array_reverse(array_slice($this->setslicecolors,0,$n));
- $numcolors=$n;
- }
-
- // Draw the slices
- $sum=0;
- for($i=0; $i < $n; ++$i)
- $sum += $this->data[$i];
-
- // Bail out with error if the sum is 0
- if( $sum==0 )
- JpGraphError::Raise("Sum of all data is 0 for Pie.");
-
- // Set up the pie-circle
- if( $this->radius <= 1 )
- $radius = floor($this->radius*min($img->width,$img->height));
- else {
- $radius = $aaoption === 1 ? $this->radius*2 : $this->radius;
- }
- if( $this->posx <= 1 && $this->posx > 0 )
- $xc = round($this->posx*$img->width);
- else
- $xc = $this->posx ;
-
- if( $this->posy <= 1 && $this->posy > 0 )
- $yc = round($this->posy*$img->height);
- else
- $yc = $this->posy ;
-
- $this->startangle = $this->startangle*M_PI/180;
- $n = count($this->data);
- if( $this->explode_all )
- for($i=0; $i < $n; ++$i)
- $this->explode_radius[$i]=$this->explode_r;
- if( $this->ishadowcolor != "" && $aaoption !== 2) {
- $accsum=0;
- $angle2 = $this->startangle;
- $img->SetColor($this->ishadowcolor);
- for($i=0; $sum>0 && $i < $n; ++$i) {
- $d = $this->data[$i];
- $angle1 = $angle2;
- $accsum += $d;
- $angle2 = $this->startangle+2*M_PI*$accsum/$sum;
- if( empty($this->explode_radius[$i]) )
- $this->explode_radius[$i]=0;
- $la = 2*M_PI - (abs($angle2-$angle1)/2.0+$angle1);
- $xcm = $xc + $this->explode_radius[$i]*cos($la)*$expscale;
- $ycm = $yc - $this->explode_radius[$i]*sin($la)*$expscale;
-
- $xcm += $this->ishadowdrop*$expscale;
- $ycm += $this->ishadowdrop*$expscale;
- $img->CakeSlice($xcm,$ycm,$radius,$radius,
- $angle1*180/M_PI,$angle2*180/M_PI,$this->ishadowcolor);
-
- }
- }
- $accsum=0;
- $angle2 = $this->startangle;
- $img->SetColor($this->color);
- for($i=0; $sum>0 && $i < $n; ++$i) {
- $d = $this->data[$i];
- $angle1 = $angle2;
- $accsum += $d;
- $angle2 = $this->startangle+2*M_PI*$accsum/$sum;
- if( $this->setslicecolors==null )
- $slicecolor=$colors[$ta[$i%$numcolors]];
- else
- $slicecolor=$this->setslicecolors[$i%$numcolors];
- if( $this->pie_interior_border && $aaoption===0 )
- $img->SetColor($this->color);
- else
- $img->SetColor($slicecolor);
- $arccolor = $this->pie_border && $aaoption===0 ? $this->color : "";
- $this->la[$i] = 2*M_PI - (abs($angle2-$angle1)/2.0+$angle1);
- if( empty($this->explode_radius[$i]) )
- $this->explode_radius[$i]=0;
- $xcm = $xc + $this->explode_radius[$i]*cos($this->la[$i])*$expscale;
- $ycm = $yc - $this->explode_radius[$i]*sin($this->la[$i])*$expscale;
- if( $aaoption !== 2 ) {
- $img->CakeSlice($xcm,$ycm,$radius-1,$radius-1,
- $angle1*180/M_PI,$angle2*180/M_PI,$slicecolor,$arccolor);
- }
- if ($this->csimtargets && $aaoption !== 1 )
- $this->AddSliceToCSIM($i,$xcm,$ycm,$radius,$angle1,$angle2);
- }
- if( $this->value->show && $aaoption !== 1 ) {
- // Format the titles for each slice
- for( $i=0; $i < $n; ++$i) {
- if( $this->labeltype==0 )
- if( $sum != 0 )
- $l = 100.0*$this->data[$i]/$sum;
- else
- $l = 0.0;
- else
- $l = $this->data[$i]*1.0;
- if( isset($this->labels[$i]) && is_string($this->labels[$i]) )
- $this->labels[$i]=sprintf($this->labels[$i],$l);
- else
- $this->labels[$i]=$l;
- }
- $this->StrokeAllLabels($img,$xc,$yc,$radius);
- }
- // Adjust title position
- if( $aaoption !== 1 ) {
- $this->title->Pos($xc,
- $yc-$this->title->GetFontHeight($img)-$radius-$this->title->margin,
- "center","bottom");
- $this->title->Stroke($img);
- }
- }
- //---------------
- // PRIVATE METHODS
- function StrokeAllLabels($img,$xc,$yc,$radius) {
- $n = count($this->labels);
- for($i=0; $i < $n; ++$i) {
- $this->StrokeLabel($this->labels[$i],$img,$xc,$yc,$this->la[$i],
- $radius + $this->explode_radius[$i]);
- }
- }
- // Position the labels of each slice
- function StrokeLabel($label,$img,$xc,$yc,$a,$r) {
- // Default value
- if( $this->ilabelposadj === 'auto' )
- $this->ilabelposadj = 0.65;
- // We position the values diferently depending on if they are inside
- // or outside the pie
- if( $this->ilabelposadj < 1.0 ) {
- $this->value->SetAlign('center','center');
- $this->value->margin = 0;
-
- $xt=round($this->ilabelposadj*$r*cos($a)+$xc);
- $yt=round($yc-$this->ilabelposadj*$r*sin($a));
-
- $this->value->Stroke($img,$label,$xt,$yt);
- }
- else {
- $this->value->halign = "left";
- $this->value->valign = "top";
- $this->value->margin = 0;
-
-
- // 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.
- $img->SetFont($this->value->ff,$this->value->fs,$this->value->fsize);
- $h=$img->GetTextHeight($label);
- // For numeric values the format of the display value
- // must be taken into account
- if( is_numeric($label) ) {
- if( $label > 0 )
- $w=$img->GetTextWidth(sprintf($this->value->format,$label));
- else
- $w=$img->GetTextWidth(sprintf($this->value->negformat,$label));
- }
- else
- $w=$img->GetTextWidth($label);
- if( $this->ilabelposadj > 1.0 && $this->ilabelposadj < 5.0) {
- $r *= $this->ilabelposadj;
- }
- $r += $img->GetFontHeight()/1.5;
- $xt=round($r*cos($a)+$xc);
- $yt=round($yc-$r*sin($a));
- while( $a < 0 ) $a += 2*M_PI;
- while( $a > 2*M_PI ) $a -= 2*M_PI;
- if( $a>=7*M_PI/4 || $a <= M_PI/4 ) $dx=0;
- if( $a>=M_PI/4 && $a <= 3*M_PI/4 ) $dx=($a-M_PI/4)*2/M_PI;
- if( $a>=3*M_PI/4 && $a <= 5*M_PI/4 ) $dx=1;
- if( $a>=5*M_PI/4 && $a <= 7*M_PI/4 ) $dx=(1-($a-M_PI*5/4)*2/M_PI);
-
- if( $a>=7*M_PI/4 ) $dy=(($a-M_PI)-3*M_PI/4)*2/M_PI;
- if( $a<=M_PI/4 ) $dy=(1-$a*2/M_PI);
- if( $a>=M_PI/4 && $a <= 3*M_PI/4 ) $dy=1;
- if( $a>=3*M_PI/4 && $a <= 5*M_PI/4 ) $dy=(1-($a-3*M_PI/4)*2/M_PI);
- if( $a>=5*M_PI/4 && $a <= 7*M_PI/4 ) $dy=0;
- $this->value->Stroke($img,$label,$xt-$dx*$w,$yt-$dy*$h);
- }
- }
- } // Class
- //===================================================
- // CLASS PiePlotC
- // Description: Same as a normal pie plot but with a
- // filled circle in the center
- //===================================================
- class PiePlotC extends PiePlot {
- var $imidsize=0.5; // Fraction of total width
- var $imidcolor='white';
- var $midtitle='';
- var $middlecsimtarget="",$middlecsimalt="";
- function PiePlotC($data,$aCenterTitle='') {
- parent::PiePlot($data);
- $this->midtitle = new Text();
- $this->midtitle->ParagraphAlign('center');
- }
- function SetMid($aTitle,$aColor='white',$aSize=0.5) {
- $this->midtitle->Set($aTitle);
- $this->imidsize = $aSize ;
- $this->imidcolor = $aColor ;
- }
- function SetMidTitle($aTitle) {
- $this->midtitle->Set($aTitle);
- }
- function SetMidSize($aSize) {
- $this->imidsize = $aSize ;
- }
- function SetMidColor($aColor) {
- $this->imidcolor = $aColor ;
- }
- function SetMidCSIM($aTarget,$aAlt) {
- $this->middlecsimtarget = $aTarget;
- $this->middlecsimalt = $aAlt;
- }
- function AddSliceToCSIM($i,$xc,$yc,$radius,$sa,$ea) {
- //Slice number, ellipse centre (x,y), radius, start angle, end angle
- while( $sa > 2*M_PI ) $sa = $sa - 2*M_PI;
- while( $ea > 2*M_PI ) $ea = $ea - 2*M_PI;
- $sa = 2*M_PI - $sa;
- $ea = 2*M_PI - $ea;
- // Add inner circle first point
- $xp = floor(($this->imidsize*$radius*cos($ea))+$xc);
- $yp = floor($yc-($this->imidsize*$radius*sin($ea)));
- $coords = "$xp, $yp";
-
- //add coordinates every 0.25 radians
- $a=$ea+0.25;
- while ($a < $sa) {
- $xp = floor(($this->imidsize*$radius*cos($a)+$xc));
- $yp = floor($yc-($this->imidsize*$radius*sin($a)));
- $coords.= ", $xp, $yp";
- $a += 0.25;
- }
- // Make sure we end at the last point
- $xp = floor(($this->imidsize*$radius*cos($sa)+$xc));
- $yp = floor($yc-($this->imidsize*$radius*sin($sa)));
- $coords.= ", $xp, $yp";
- // Straight line to outer circle
- $xp = floor($radius*cos($sa)+$xc);
- $yp = floor($yc-$radius*sin($sa));
- $coords.= ", $xp, $yp";
- //add coordinates every 0.25 radians
- $a=$sa - 0.25;
- while ($a > $ea) {
- $xp = floor($radius*cos($a)+$xc);
- $yp = floor($yc-$radius*sin($a));
- $coords.= ", $xp, $yp";
- $a -= 0.25;
- }
-
- //Add the last point on the arc
- $xp = floor($radius*cos($ea)+$xc);
- $yp = floor($yc-$radius*sin($ea));
- $coords.= ", $xp, $yp";
- // Close the arc
- $xp = floor(($this->imidsize*$radius*cos($ea))+$xc);
- $yp = floor($yc-($this->imidsize*$radius*sin($ea)));
- $coords .= ", $xp, $yp";
- if( !empty($this->csimtargets[$i]) )
- $this->csimareas .= "<area shape="poly" coords="$coords" href="".
- $this->csimtargets[$i].""";
- if( !empty($this->csimalts[$i]) ) {
- $tmp=sprintf($this->csimalts[$i],$this->data[$i]);
- $this->csimareas .= " alt="$tmp" title="$tmp"";
- }
- $this->csimareas .= ">n";
- }
- function Stroke($img,$aaoption=0) {
- // Stroke the pie but don't stroke values
- $tmp = $this->value->show;
- $this->value->show = false;
- parent::Stroke($img,$aaoption);
- $this->value->show = $tmp;
- $xc = round($this->posx*$img->width);
- $yc = round($this->posy*$img->height);
- $radius = floor($this->radius * min($img->width,$img->height)) ;
- if( $this->imidsize > 0 && $aaoption !== 2 ) {
- if( $this->ishadowcolor != "" ) {
- $img->SetColor($this->ishadowcolor);
- $img->FilledCircle($xc+$this->ishadowdrop,$yc+$this->ishadowdrop,
- round($radius*$this->imidsize));
- }
- $img->SetColor($this->imidcolor);
- $img->FilledCircle($xc,$yc,round($radius*$this->imidsize));
- if( $this->pie_border && $aaoption === 0 ) {
- $img->SetColor($this->color);
- $img->Circle($xc,$yc,round($radius*$this->imidsize));
- }
- if( !empty($this->middlecsimtarget) )
- $this->AddMiddleCSIM($xc,$yc,round($radius*$this->imidsize));
- }
- if( $this->value->show && $aaoption !== 1) {
- $this->StrokeAllLabels($img,$xc,$yc,$radius);
- $this->midtitle->Pos($xc,$yc,'center','center');
- $this->midtitle->Stroke($img);
- }
- }
- function AddMiddleCSIM($xc,$yc,$r) {
- $this->csimareas .= "<area shape="circle" coords="$xc,$yc,$r" href="".
- $this->middlecsimtarget.""";
- if( !empty($this->middlecsimalt) ) {
- $tmp = $this->middlecsimalt;
- $this->csimareas .= " alt="$tmp" title="$tmp"";
- }
- $this->csimareas .= ">n";
- }
- function StrokeLabel($label,$img,$xc,$yc,$a,$r) {
- if( $this->ilabelposadj === 'auto' )
- $this->ilabelposadj = (1-$this->imidsize)/2+$this->imidsize;
- parent::StrokeLabel($label,$img,$xc,$yc,$a,$r);
- }
- }
- //===================================================
- // CLASS PieGraph
- // Description:
- //===================================================
- class PieGraph extends Graph {
- var $posx, $posy, $radius;
- var $legends=array();
- var $plots=array();
- var $pieaa = false ;
- //---------------
- // CONSTRUCTOR
- function PieGraph($width=300,$height=200,$cachedName="",$timeout=0,$inline=1) {
- $this->Graph($width,$height,$cachedName,$timeout,$inline);
- $this->posx=$width/2;
- $this->posy=$height/2;
- $this->SetColor(array(255,255,255));
- }
- //---------------
- // PUBLIC METHODS
- function Add($aObj) {
- if( is_array($aObj) && count($aObj) > 0 )
- $cl = get_class($aObj[0]);
- else
- $cl = get_class($aObj);
- if( $cl == 'text' )
- $this->AddText($aObj);
- else
- $this->plots[] = $aObj;
- }
- function SetAntiAliasing($aFlg=true) {
- $this->pieaa = $aFlg;
- }
-
- function SetColor($c) {
- $this->SetMarginColor($c);
- }
- function DisplayCSIMAreas() {
- $csim="";
- foreach($this->plots as $p ) {
- $csim .= $p->GetCSIMareas();
- }
- //$csim.= $this->legend->GetCSIMareas();
- if (preg_match_all("/area shape="(w+)" coords="([0-9, ]+)"/", $csim, $coords)) {
- $this->img->SetColor($this->csimcolor);
- for ($i=0; $i<count($coords[0]); $i++) {
- if ($coords[1][$i]=="poly") {
- preg_match_all('/s*([0-9]+)s*,s*([0-9]+)s*,*/',$coords[2][$i],$pts);
- $this->img->SetStartPoint($pts[1][count($pts[0])-1],$pts[2][count($pts[0])-1]);
- for ($j=0; $j<count($pts[0]); $j++) {
- $this->img->LineTo($pts[1][$j],$pts[2][$j]);
- }
- } else if ($coords[1][$i]=="rect") {
- $pts = preg_split('/,/', $coords[2][$i]);
- $this->img->SetStartPoint($pts[0],$pts[1]);
- $this->img->LineTo($pts[2],$pts[1]);
- $this->img->LineTo($pts[2],$pts[3]);
- $this->img->LineTo($pts[0],$pts[3]);
- $this->img->LineTo($pts[0],$pts[1]);
-
- }
- }
- }
- }
- // Method description
- function Stroke($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);
- if( $this->pieaa ) {
- if( !$_csim ) {
- if( $this->background_image != "" ) {
- $this->StrokeFrameBackground();
- }
- else {
- $this->StrokeFrame();
- }
- }
- $w = $this->img->width;
- $h = $this->img->height;
- $oldimg = $this->img->img;
- $this->img->CreateImgCanvas(2*$w,2*$h);
-
- $this->img->SetColor( $this->margin_color );
- $this->img->FilledRectangle(0,0,2*$w-1,2*$h-1);
- for($i=0; $i < $n; ++$i) {
- if( $this->plots[$i]->posx > 1 )
- $this->plots[$i]->posx *= 2 ;
- if( $this->plots[$i]->posy > 1 )
- $this->plots[$i]->posy *= 2 ;
- $this->plots[$i]->Stroke($this->img,1);
- if( $this->plots[$i]->posx > 1 )
- $this->plots[$i]->posx /= 2 ;
- if( $this->plots[$i]->posy > 1 )
- $this->plots[$i]->posy /= 2 ;
- }
- $indent = $this->doframe ? ($this->frame_weight + ($this->doshadow ? $this->shadow_width : 0 )) : 0 ;
- $indent += $this->framebevel ? $this->framebeveldepth + 1 : 0 ;
- $this->img->CopyCanvasH($oldimg,$this->img->img,$indent,$indent,$indent,$indent,
- $w-2*$indent,$h-2*$indent,2*($w-$indent),2*($h-$indent));
- $this->img->img = $oldimg ;
- $this->img->width = $w ;
- $this->img->height = $h ;
- for($i=0; $i < $n; ++$i) {
- $this->plots[$i]->Stroke($this->img,2);
- $this->plots[$i]->Legend($this);
- }
- }
- else {
- if( !$_csim ) {
- if( $this->background_image != "" ) {
- $this->StrokeFrameBackground();
- }
- else {
- $this->StrokeFrame();
- }
- }
-
- for($i=0; $i < $n; ++$i) {
- $this->plots[$i]->Stroke($this->img);
- $this->plots[$i]->Legend($this);
- }
- }
- $this->legend->Stroke($this->img);
- $this->footer->Stroke($this->img);
- if( !$_csim ) {
- $this->StrokeTitles();
- // Stroke texts
- if( $this->texts != null ) {
- $n = count($this->texts);
- for($i=0; $i < $n; ++$i ) {
- $this->texts[$i]->Stroke($this->img);
- }
- }
- if( JPG_DEBUG ) {
- $this->DisplayCSIMAreas();
- }
- // 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 */
- ?>