array(10,34,40,45,46,62,63,134,74,77,120,136,141,168,180,209,218,346,395,89,430), "pastel" => array(27,38,42,58,66,79,105,110,128,147,152,230,236,240,331,337,405,415), "water" => array(8,370,10,40,335,56,213,237,268,14,326,387,24,388), "sand" => array(27,168,34,170,19,50,65,72,131,209,46,393)); var $theme="earth"; var $setslicecolors=array(); var $labelformat="%01.0f"; // Default format for labels var $labeltype=0; // Default to percentage var $pie_border=true,$pie_interior_border=true; //--------------- // CONSTRUCTOR function PiePlot(&$data) { $this->data = $data; $this->title = new Text(""); $this->title->SetFont(FF_FONT1,FS_BOLD); } //--------------- // PUBLIC METHODS function SetCenter($x,$y=0.5) { $this->posx = $x; $this->posy = $y; } function SetCSIMTargets(&$targets,$alts=null) { $this->csimtargets=$targets; $this->csimalts=$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 //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($sa))+$xc); $yp = floor($yc-$radius*sin($sa)); $coords.= ", $xp, $yp"; //add coordinates every 0.2 radians $a=$sa+0.2; while ($a<$ea) { $xp = floor($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($ea)+$xc); $yp = floor($yc-$radius*sin($ea)); $coords.= ", $xp, $yp"; if( !empty($this->csimtargets[$i]) ) $this->csimareas .= "csimtargets[$i]."\""; if( !empty($this->csimalts[$i]) ) { $tmp=sprintf($this->csimalts[$i],$this->data[$i]); $this->csimareas .= " alt=\"$tmp\""; } $this->csimareas .= ">\r\n"; } function SetTheme($t) { if( in_array($t,array_keys($this->themearr)) ) $this->theme = $t; else JpGraphError::Raise("JpGraph Error: Unknown theme: $t"); } function ExplodeSlice($e) { $this->explode_radius[$e]=20; } function ExplodeAll($radius=-1) { $this->explode_all=true; if( $radius==-1 ) $this->explode_r = 20; else $this->explode_r = $radius; } function Explode($radarr) { $this->explode_radius = $radarr; } function SetSliceColors($c) { $this->setslicecolors = $c; } function SetStartAngle($a) { assert($a>=0 && $a<2*M_PI); $this->startangle = $a; } function SetFont($family,$style=FS_NORMAL,$size=10) { $this->font_family=$family; $this->font_style=$style; $this->font_size=$size; } // Size in percentage function SetSize($size) { if( ($size>0 && $size<=0.5) || ($size>10 && $size<1000) ) $this->radius = $size; else JpGraphError::Raise("JpGraph Error: Size (radius) for pie must either be specified as a fraction [0, 0.5] of the size of the image or as an absolute size in pixels in the range [10, 1000]"); } function SetFontColor($color) { $this->font_color = $color; } // Set label arrays function SetLegends($l) { $this->legends = $l; } // Should the values be displayed? function HideLabels($f=true) { $this->show_labels = !$f; } // Specify label format as a "C" printf string function SetLabelFormat($f) { $this->labelformat=$f; // If format is specified don't add any %-sign $this->show_psign=0; } // Should we display actual value or percentage? function SetLabelType($t) { if( $t<0 || $t>1 ) JpGraphError::Raise("JpGraph Error: Label type for pie plots must be 0 or 1 (not $t)."); $this->labeltype=$t; // Don't show percentage value when displaying absolute values if( $t==1 ) $this->show_psign=0; } // Should the circle around a pie plot be displayed function ShowBorder($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]; if( $this->setslicecolors==null ) $numcolors=count($ta); else $numcolors=count($this->setslicecolors); $sum=0; for($i=0; $idata); ++$i) $sum += $this->data[$i]; $i=0; if( count($this->legends)>0 ) { foreach( $this->legends as $l ) { // 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]); if( $this->setslicecolors==null ) $graph->legend->Add($l,$colors[$ta[$i%$numcolors]]); else $graph->legend->Add($l,$this->setslicecolors[$i%$numcolors]); ++$i; // Breakout if there are more legends then values if( $i==count($this->data) ) return; } } } // Specify precision for labels. This is almost a deprecated function // nowadays since the introduction of SetLabelFormat() function SetPrecision($p,$psign=true) { if( $p<0 || $p>8 ) JpGraphError::Raise("JpGraph Error: Pie label Precision must be between 0 and 8"); $this->labelformat="%01.".$p."f"; $this->show_psign=$psign; } function Stroke(&$img) { $colors = array_keys($img->rgb->rgb_table); sort($colors); $ta=$this->themearr[$this->theme]; if( $this->setslicecolors==null ) $numcolors=count($ta); else $numcolors=count($this->setslicecolors); // Draw the slices $sum=0; for($i=0; $idata); ++$i) $sum += $this->data[$i]; // Format the titles for each slice for( $i=0; $idata); ++$i) { if( $this->labeltype==0 ) if( $sum != 0 ) $l = round(100*$this->data[$i]/$sum,$this->precision); else $l = 0; else $l = $this->data[$i]; $l = sprintf($this->labelformat,$l); if( $this->show_psign ) $l .= "%"; $this->labels[$i]=$l; } // Set up the pic-circle if( $this->radius < 1 ) $radius = floor($this->radius*min($img->width,$img->height)); else $radius = $this->radius; $xc = $this->posx*$img->width; $yc = $this->posy*$img->height; $accsum=0; $angle2 = $this->startangle; $img->SetColor($this->color); if( $this->explode_all ) for($i=0;$idata);++$i) $this->explode_radius[$i]=$this->explode_r; for($i=0; $sum>0 && $idata); ++$i) { $d = $this->data[$i]; $angle1 = $angle2; $accsum += $d; $angle2 = $this->startangle+2.0*M_PI*$accsum/$sum; if( $this->setslicecolors==null ) $slicecolor=$colors[$ta[$i%$numcolors]]; else $slicecolor=$this->setslicecolors[$i%$numcolors]; if( $this->pie_interior_border ) $img->SetColor($this->color); else $img->SetColor($slicecolor); $arccolor = $this->pie_border ? $this->color : $slicecolor; $la = abs($angle2-$angle1)/2.0+$angle1; if( empty($this->explode_radius[$i]) ) $this->explode_radius[$i]=0; $xcm = $xc + $this->explode_radius[$i]*cos($la); $ycm = $yc - $this->explode_radius[$i]*sin($la); $img->CakeSlice($xcm,$ycm,$radius-1,$radius-1,$angle1,$angle2, $slicecolor,$arccolor); if( $this->show_labels ) $this->StrokeLabels($this->labels[$i],$img,$xc,$yc,$la, $radius+$this->explode_radius[$i]); if ($this->csimtargets) { $this->AddSliceToCSIM($i,$xcm,$ycm,$radius,$angle1,$angle2); } } // Adjust title position $this->title->Pos($xc,$yc-$img->GetFontHeight()-$radius,"center","bottom"); $this->title->Stroke($img); } //--------------- // PRIVATE METHODS // Position the labels of each slice function StrokeLabels($label,$img,$xc,$yc,$a,$r) { $img->SetFont($this->font_family,$this->font_style,$this->font_size); $img->SetColor($this->font_color); $img->SetTextAlign("left","top"); $marg=6; $r += $img->GetFontHeight()/2; $xt=round($r*cos($a)+$xc); $yt=round($yc-$r*sin($a)); // 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. $h=$img->GetTextHeight($label); $w=$img->GetTextWidth($label); 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; $img->StrokeText($xt-$dx*$w,$yt-$dy*$h,$label); } } // Class //=================================================== // CLASS PieGraph // Description: //=================================================== class PieGraph extends Graph { var $posx, $posy, $radius; var $legends=array(); var $plots=array(); //--------------- // CONSTRUCTOR function PieGraph($width=300,$height=200,$cachedName="",$timeout=0,$inline=1) { $this->Graph($width,$height,$cachedName,$timeout,$inline); $this->posx=$width/2; $this->posy=$height/2; $this->SetColor(array(255,255,255)); } //--------------- // PUBLIC METHODS function Add(&$pie) { $this->plots[] = $pie; } function SetColor($c) { $this->SetMarginColor($c); } // Method description function Stroke($aStrokeFileName="") { $this->StrokeFrame(); for($i=0; $iplots); ++$i) $this->plots[$i]->Stroke($this->img); foreach( $this->plots as $p) $p->Legend($this); $this->legend->Stroke($this->img); $this->title->Center($this->img->left_margin,$this->img->width-$this->img->right_margin,5); $this->title->Stroke($this->img); // Stroke texts if( $this->texts != null ) foreach( $this->texts as $t) $t->Stroke($this->img); if ($this->showcsim) { foreach($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; $iimg->SetStartPoint($pts[1][count($pts[0])-1],$pts[2][count($pts[0])-1]); for ($j=0; $jimg->LineTo($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]); } } } } // Finally output the image $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName); } } // Class /* EOF */ ?>