| <?php |
| /*======================================================================= |
| // File: JPGRAPH_PIE3D.PHP |
| // Description: 3D Pie plot extension for JpGraph |
| // Created: 2001-03-24 |
| // Author: Johan Persson (johanp@aditus.nu) |
| // Ver: $Id$ |
| // |
| // Copyright (c) Aditus Consulting. All rights reserved. |
| //======================================================================== |
| */ |
| |
| //=================================================== |
| // CLASS PiePlot3D |
| // Description: Plots a 3D pie with a specified projection |
| // angle between 20 and 70 degrees. |
| //=================================================== |
| class PiePlot3D extends PiePlot { |
| var $labelhintcolor="red",$showlabelhint=true; |
| var $angle=50; |
| var $edgecolor="", $edgeweight=1; |
| var $iThickness=false; |
| |
| //--------------- |
| // CONSTRUCTOR |
| function PiePlot3d(&$data) { |
| $this->radius = 0.5; |
| $this->data = $data; |
| $this->title = new Text(""); |
| $this->title->SetFont(FF_FONT1,FS_BOLD); |
| $this->value = new DisplayValue(); |
| $this->value->Show(); |
| $this->value->SetFormat('%.0f%%'); |
| } |
| |
| //--------------- |
| // PUBLIC METHODS |
| |
| // Set label arrays |
| function SetLegends($aLegend) { |
| $this->legends = array_reverse(array_slice($aLegend,0,count($this->data))); |
| } |
| |
| function SetSliceColors($aColors) { |
| $this->setslicecolors = $aColors; |
| } |
| |
| function Legend(&$aGraph) { |
| parent::Legend($aGraph); |
| $aGraph->legend->txtcol = array_reverse($aGraph->legend->txtcol); |
| } |
| |
| function SetCSIMTargets($targets,$alts=null) { |
| $this->csimtargets = $targets; |
| $this->csimalts = $alts; |
| } |
| |
| // Should the slices be separated by a line? If color is specified as "" no line |
| // will be used to separate pie slices. |
| function SetEdge($aColor='black',$aWeight=1) { |
| $this->edgecolor = $aColor; |
| $this->edgeweight = $aWeight; |
| } |
| |
| // Dummy function to make Pie3D behave in a similair way to 2D |
| function ShowBorder($exterior=true,$interior=true) { |
| JpGraphError::RaiseL(14001); |
| //('Pie3D::ShowBorder() . Deprecated function. Use Pie3D::SetEdge() to control the edges around slices.'); |
| } |
| |
| // Specify projection angle for 3D in degrees |
| // Must be between 20 and 70 degrees |
| function SetAngle($a) { |
| if( $a<5 || $a>90 ) |
| JpGraphError::RaiseL(14002); |
| //("PiePlot3D::SetAngle() 3D Pie projection angle must be between 5 and 85 degrees."); |
| else |
| $this->angle = $a; |
| } |
| |
| function AddSliceToCSIM($i,$xc,$yc,$height,$width,$thick,$sa,$ea) { //Slice number, ellipse centre (x,y), height, width, start angle, end angle |
| |
| $sa *= M_PI/180; |
| $ea *= M_PI/180; |
| |
| //add coordinates of the centre to the map |
| $coords = "$xc, $yc"; |
| |
| //add coordinates of the first point on the arc to the map |
| $xp = floor($width*cos($sa)/2+$xc); |
| $yp = floor($yc-$height*sin($sa)/2); |
| $coords.= ", $xp, $yp"; |
| |
| //If on the front half, add the thickness offset |
| if ($sa >= M_PI && $sa <= 2*M_PI*1.01) { |
| $yp = floor($yp+$thick); |
| $coords.= ", $xp, $yp"; |
| } |
| |
| //add coordinates every 0.2 radians |
| $a=$sa+0.2; |
| while ($a<$ea) { |
| $xp = floor($width*cos($a)/2+$xc); |
| if ($a >= M_PI && $a <= 2*M_PI*1.01) { |
| $yp = floor($yc-($height*sin($a)/2)+$thick); |
| } else { |
| $yp = floor($yc-$height*sin($a)/2); |
| } |
| $coords.= ", $xp, $yp"; |
| $a += 0.2; |
| } |
| |
| //Add the last point on the arc |
| $xp = floor($width*cos($ea)/2+$xc); |
| $yp = floor($yc-$height*sin($ea)/2); |
| |
| |
| if ($ea >= M_PI && $ea <= 2*M_PI*1.01) { |
| $coords.= ", $xp, ".floor($yp+$thick); |
| } |
| $coords.= ", $xp, $yp"; |
| $alt=''; |
| if( !empty($this->csimalts[$i]) ) { |
| $tmp=sprintf($this->csimalts[$i],$this->data[$i]); |
| $alt="alt=\"$tmp\" title=\"$tmp\""; |
| } |
| if( !empty($this->csimtargets[$i]) ) |
| $this->csimareas .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->csimtargets[$i]."\" $alt />\n"; |
| } |
| |
| function SetLabels($aLabels,$aLblPosAdj="auto") { |
| $this->labels = $aLabels; |
| $this->ilabelposadj=$aLblPosAdj; |
| } |
| |
| |
| // Distance from the pie to the labels |
| function SetLabelMargin($m) { |
| $this->value->SetMargin($m); |
| } |
| |
| // Show a thin line from the pie to the label for a specific slice |
| function ShowLabelHint($f=true) { |
| $this->showlabelhint=$f; |
| } |
| |
| // Set color of hint line to label for each slice |
| function SetLabelHintColor($c) { |
| $this->labelhintcolor=$c; |
| } |
| |
| function SetHeight($aHeight) { |
| $this->iThickness = $aHeight; |
| } |
| |
| |
| // Normalize Angle between 0-360 |
| function NormAngle($a) { |
| // Normalize anle to 0 to 2M_PI |
| // |
| if( $a > 0 ) { |
| while($a > 360) $a -= 360; |
| } |
| else { |
| while($a < 0) $a += 360; |
| } |
| if( $a < 0 ) |
| $a = 360 + $a; |
| |
| if( $a == 360 ) $a=0; |
| return $a; |
| } |
| |
| |
| |
| // Draw one 3D pie slice at position ($xc,$yc) with height $z |
| function Pie3DSlice(&$img,$xc,$yc,$w,$h,$sa,$ea,$z,$fillcolor,$shadow=0.65) { |
| |
| // Due to the way the 3D Pie algorithm works we are |
| // guaranteed that any slice we get into this method |
| // belongs to either the left or right side of the |
| // pie ellipse. Hence, no slice will cross 90 or 270 |
| // point. |
| if( ($sa < 90 && $ea > 90) || ( ($sa > 90 && $sa < 270) && $ea > 270) ) { |
| JpGraphError::RaiseL(14003);//('Internal assertion failed. Pie3D::Pie3DSlice'); |
| exit(1); |
| } |
| |
| $p[] = array(); |
| |
| // Setup pre-calculated values |
| $rsa = $sa/180*M_PI; // to Rad |
| $rea = $ea/180*M_PI; // to Rad |
| $sinsa = sin($rsa); |
| $cossa = cos($rsa); |
| $sinea = sin($rea); |
| $cosea = cos($rea); |
| |
| // p[] is the points for the overall slice and |
| // pt[] is the points for the top pie |
| |
| // Angular step when approximating the arc with a polygon train. |
| $step = 0.05; |
| |
| if( $sa >= 270 ) { |
| if( $ea > 360 || ($ea > 0 && $ea <= 90) ) { |
| if( $ea > 0 && $ea <= 90 ) { |
| // Adjust angle to simplify conditions in loops |
| $rea += 2*M_PI; |
| } |
| |
| $p = array($xc,$yc,$xc,$yc+$z, |
| $xc+$w*$cossa,$z+$yc-$h*$sinsa); |
| $pt = array($xc,$yc,$xc+$w*$cossa,$yc-$h*$sinsa); |
| |
| for( $a=$rsa; $a < 2*M_PI; $a += $step ) { |
| $tca = cos($a); |
| $tsa = sin($a); |
| $p[] = $xc+$w*$tca; |
| $p[] = $z+$yc-$h*$tsa; |
| $pt[] = $xc+$w*$tca; |
| $pt[] = $yc-$h*$tsa; |
| } |
| |
| $pt[] = $xc+$w; |
| $pt[] = $yc; |
| |
| $p[] = $xc+$w; |
| $p[] = $z+$yc; |
| $p[] = $xc+$w; |
| $p[] = $yc; |
| $p[] = $xc; |
| $p[] = $yc; |
| |
| for( $a=2*M_PI+$step; $a < $rea; $a += $step ) { |
| $pt[] = $xc + $w*cos($a); |
| $pt[] = $yc - $h*sin($a); |
| } |
| |
| $pt[] = $xc+$w*$cosea; |
| $pt[] = $yc-$h*$sinea; |
| $pt[] = $xc; |
| $pt[] = $yc; |
| |
| } |
| else { |
| $p = array($xc,$yc,$xc,$yc+$z, |
| $xc+$w*$cossa,$z+$yc-$h*$sinsa); |
| $pt = array($xc,$yc,$xc+$w*$cossa,$yc-$h*$sinsa); |
| |
| $rea = $rea == 0.0 ? 2*M_PI : $rea; |
| for( $a=$rsa; $a < $rea; $a += $step ) { |
| $tca = cos($a); |
| $tsa = sin($a); |
| $p[] = $xc+$w*$tca; |
| $p[] = $z+$yc-$h*$tsa; |
| $pt[] = $xc+$w*$tca; |
| $pt[] = $yc-$h*$tsa; |
| } |
| |
| $pt[] = $xc+$w*$cosea; |
| $pt[] = $yc-$h*$sinea; |
| $pt[] = $xc; |
| $pt[] = $yc; |
| |
| $p[] = $xc+$w*$cosea; |
| $p[] = $z+$yc-$h*$sinea; |
| $p[] = $xc+$w*$cosea; |
| $p[] = $yc-$h*$sinea; |
| $p[] = $xc; |
| $p[] = $yc; |
| } |
| } |
| elseif( $sa >= 180 ) { |
| $p = array($xc,$yc,$xc,$yc+$z,$xc+$w*$cosea,$z+$yc-$h*$sinea); |
| $pt = array($xc,$yc,$xc+$w*$cosea,$yc-$h*$sinea); |
| |
| for( $a=$rea; $a>$rsa; $a -= $step ) { |
| $tca = cos($a); |
| $tsa = sin($a); |
| $p[] = $xc+$w*$tca; |
| $p[] = $z+$yc-$h*$tsa; |
| $pt[] = $xc+$w*$tca; |
| $pt[] = $yc-$h*$tsa; |
| } |
| |
| $pt[] = $xc+$w*$cossa; |
| $pt[] = $yc-$h*$sinsa; |
| $pt[] = $xc; |
| $pt[] = $yc; |
| |
| $p[] = $xc+$w*$cossa; |
| $p[] = $z+$yc-$h*$sinsa; |
| $p[] = $xc+$w*$cossa; |
| $p[] = $yc-$h*$sinsa; |
| $p[] = $xc; |
| $p[] = $yc; |
| |
| } |
| elseif( $sa >= 90 ) { |
| if( $ea > 180 ) { |
| $p = array($xc,$yc,$xc,$yc+$z,$xc+$w*$cosea,$z+$yc-$h*$sinea); |
| $pt = array($xc,$yc,$xc+$w*$cosea,$yc-$h*$sinea); |
| |
| for( $a=$rea; $a > M_PI; $a -= $step ) { |
| $tca = cos($a); |
| $tsa = sin($a); |
| $p[] = $xc+$w*$tca; |
| $p[] = $z + $yc - $h*$tsa; |
| $pt[] = $xc+$w*$tca; |
| $pt[] = $yc-$h*$tsa; |
| } |
| |
| $p[] = $xc-$w; |
| $p[] = $z+$yc; |
| $p[] = $xc-$w; |
| $p[] = $yc; |
| $p[] = $xc; |
| $p[] = $yc; |
| |
| $pt[] = $xc-$w; |
| $pt[] = $z+$yc; |
| $pt[] = $xc-$w; |
| $pt[] = $yc; |
| |
| for( $a=M_PI-$step; $a > $rsa; $a -= $step ) { |
| $pt[] = $xc + $w*cos($a); |
| $pt[] = $yc - $h*sin($a); |
| } |
| |
| $pt[] = $xc+$w*$cossa; |
| $pt[] = $yc-$h*$sinsa; |
| $pt[] = $xc; |
| $pt[] = $yc; |
| |
| } |
| else { // $sa >= 90 && $ea <= 180 |
| $p = array($xc,$yc,$xc,$yc+$z, |
| $xc+$w*$cosea,$z+$yc-$h*$sinea, |
| $xc+$w*$cosea,$yc-$h*$sinea, |
| $xc,$yc); |
| |
| $pt = array($xc,$yc,$xc+$w*$cosea,$yc-$h*$sinea); |
| |
| for( $a=$rea; $a>$rsa; $a -= $step ) { |
| $pt[] = $xc + $w*cos($a); |
| $pt[] = $yc - $h*sin($a); |
| } |
| |
| $pt[] = $xc+$w*$cossa; |
| $pt[] = $yc-$h*$sinsa; |
| $pt[] = $xc; |
| $pt[] = $yc; |
| |
| } |
| } |
| else { // sa > 0 && ea < 90 |
| |
| $p = array($xc,$yc,$xc,$yc+$z, |
| $xc+$w*$cossa,$z+$yc-$h*$sinsa, |
| $xc+$w*$cossa,$yc-$h*$sinsa, |
| $xc,$yc); |
| |
| $pt = array($xc,$yc,$xc+$w*$cossa,$yc-$h*$sinsa); |
| |
| for( $a=$rsa; $a < $rea; $a += $step ) { |
| $pt[] = $xc + $w*cos($a); |
| $pt[] = $yc - $h*sin($a); |
| } |
| |
| $pt[] = $xc+$w*$cosea; |
| $pt[] = $yc-$h*$sinea; |
| $pt[] = $xc; |
| $pt[] = $yc; |
| } |
| |
| $img->PushColor($fillcolor.":".$shadow); |
| $img->FilledPolygon($p); |
| $img->PopColor(); |
| |
| $img->PushColor($fillcolor); |
| $img->FilledPolygon($pt); |
| $img->PopColor(); |
| } |
| |
| function SetStartAngle($aStart) { |
| if( $aStart < 0 || $aStart > 360 ) { |
| JpGraphError::RaiseL(14004);//('Slice start angle must be between 0 and 360 degrees.'); |
| } |
| $this->startangle = $aStart; |
| } |
| |
| // Draw a 3D Pie |
| function Pie3D($aaoption,&$img,$data,$colors,$xc,$yc,$d,$angle,$z, |
| $shadow=0.65,$startangle=0,$edgecolor="",$edgeweight=1) { |
| |
| //--------------------------------------------------------------------------- |
| // As usual the algorithm get more complicated than I originally |
| // envisioned. I believe that this is as simple as it is possible |
| // to do it with the features I want. It's a good exercise to start |
| // thinking on how to do this to convince your self that all this |
| // is really needed for the general case. |
| // |
| // The algorithm two draw 3D pies without "real 3D" is done in |
| // two steps. |
| // First imagine the pie cut in half through a thought line between |
| // 12'a clock and 6'a clock. It now easy to imagine that we can plot |
| // the individual slices for each half by starting with the topmost |
| // pie slice and continue down to 6'a clock. |
| // |
| // In the algortithm this is done in three principal steps |
| // Step 1. Do the knife cut to ensure by splitting slices that extends |
| // over the cut line. This is done by splitting the original slices into |
| // upto 3 subslices. |
| // Step 2. Find the top slice for each half |
| // Step 3. Draw the slices from top to bottom |
| // |
| // The thing that slightly complicates this scheme with all the |
| // angle comparisons below is that we can have an arbitrary start |
| // angle so we must take into account the different equivalence classes. |
| // For the same reason we must walk through the angle array in a |
| // modulo fashion. |
| // |
| // Limitations of algorithm: |
| // * A small exploded slice which crosses the 270 degree point |
| // will get slightly nagged close to the center due to the fact that |
| // we print the slices in Z-order and that the slice left part |
| // get printed first and might get slightly nagged by a larger |
| // slice on the right side just before the right part of the small |
| // slice. Not a major problem though. |
| //--------------------------------------------------------------------------- |
| |
| |
| // Determine the height of the ellippse which gives an |
| // indication of the inclination angle |
| $h = ($angle/90.0)*$d; |
| $sum = 0; |
| for($i=0; $i<count($data); ++$i ) { |
| $sum += $data[$i]; |
| } |
| |
| // Special optimization |
| if( $sum==0 ) return; |
| |
| if( $this->labeltype == 2 ) { |
| $this->adjusted_data = $this->AdjPercentage($data); |
| } |
| |
| // Setup the start |
| $accsum = 0; |
| $a = $startangle; |
| $a = $this->NormAngle($a); |
| |
| // |
| // Step 1 . Split all slices that crosses 90 or 270 |
| // |
| $idx=0; |
| $adjexplode=array(); |
| $numcolors = count($colors); |
| for($i=0; $i<count($data); ++$i, ++$idx ) { |
| $da = $data[$i]/$sum * 360; |
| |
| if( empty($this->explode_radius[$i]) ) |
| $this->explode_radius[$i]=0; |
| |
| $expscale=1; |
| if( $aaoption == 1 ) |
| $expscale=2; |
| |
| $la = $a + $da/2; |
| $explode = array( $xc + $this->explode_radius[$i]*cos($la*M_PI/180)*$expscale, |
| $yc - $this->explode_radius[$i]*sin($la*M_PI/180) * ($h/$d) *$expscale ); |
| $adjexplode[$idx] = $explode; |
| $labeldata[$i] = array($la,$explode[0],$explode[1]); |
| $originalangles[$i] = array($a,$a+$da); |
| |
| $ne = $this->NormAngle($a+$da); |
| if( $da <= 180 ) { |
| // If the slice size is <= 90 it can at maximum cut across |
| // one boundary (either 90 or 270) where it needs to be split |
| $split=-1; // no split |
| if( ($da<=90 && ($a <= 90 && $ne > 90)) || |
| (($da <= 180 && $da >90) && (($a < 90 || $a >= 270) && $ne > 90)) ) { |
| $split = 90; |
| } |
| elseif( ($da<=90 && ($a <= 270 && $ne > 270)) || |
| (($da<=180 && $da>90) && ($a >= 90 && $a < 270 && ($a+$da) > 270 )) ) { |
| $split = 270; |
| } |
| if( $split > 0 ) { // split in two |
| $angles[$idx] = array($a,$split); |
| $adjcolors[$idx] = $colors[$i % $numcolors]; |
| $adjexplode[$idx] = $explode; |
| $angles[++$idx] = array($split,$ne); |
| $adjcolors[$idx] = $colors[$i % $numcolors]; |
| $adjexplode[$idx] = $explode; |
| } |
| else { // no split |
| $angles[$idx] = array($a,$ne); |
| $adjcolors[$idx] = $colors[$i % $numcolors]; |
| $adjexplode[$idx] = $explode; |
| } |
| } |
| else { |
| // da>180 |
| // Slice may, depending on position, cross one or two |
| // bonudaries |
| |
| if( $a < 90 ) |
| $split = 90; |
| elseif( $a <= 270 ) |
| $split = 270; |
| else |
| $split = 90; |
| |
| $angles[$idx] = array($a,$split); |
| $adjcolors[$idx] = $colors[$i % $numcolors]; |
| $adjexplode[$idx] = $explode; |
| //if( $a+$da > 360-$split ) { |
| // For slices larger than 270 degrees we might cross |
| // another boundary as well. This means that we must |
| // split the slice further. The comparison gets a little |
| // bit complicated since we must take into accound that |
| // a pie might have a startangle >0 and hence a slice might |
| // wrap around the 0 angle. |
| // Three cases: |
| // a) Slice starts before 90 and hence gets a split=90, but |
| // we must also check if we need to split at 270 |
| // b) Slice starts after 90 but before 270 and slices |
| // crosses 90 (after a wrap around of 0) |
| // c) If start is > 270 (hence the firstr split is at 90) |
| // and the slice is so large that it goes all the way |
| // around 270. |
| if( ($a < 90 && ($a+$da > 270)) || |
| ($a > 90 && $a<=270 && ($a+$da>360+90) ) || |
| ($a > 270 && $this->NormAngle($a+$da)>270) ) { |
| $angles[++$idx] = array($split,360-$split); |
| $adjcolors[$idx] = $colors[$i % $numcolors]; |
| $adjexplode[$idx] = $explode; |
| $angles[++$idx] = array(360-$split,$ne); |
| $adjcolors[$idx] = $colors[$i % $numcolors]; |
| $adjexplode[$idx] = $explode; |
| } |
| else { |
| // Just a simple split to the previous decided |
| // angle. |
| $angles[++$idx] = array($split,$ne); |
| $adjcolors[$idx] = $colors[$i % $numcolors]; |
| $adjexplode[$idx] = $explode; |
| } |
| } |
| $a += $da; |
| $a = $this->NormAngle($a); |
| } |
| |
| // Total number of slices |
| $n = count($angles); |
| |
| for($i=0; $i<$n; ++$i) { |
| list($dbgs,$dbge) = $angles[$i]; |
| } |
| |
| // |
| // Step 2. Find start index (first pie that starts in upper left quadrant) |
| // |
| $minval = $angles[0][0]; |
| $min = 0; |
| for( $i=0; $i<$n; ++$i ) { |
| if( $angles[$i][0] < $minval ) { |
| $minval = $angles[$i][0]; |
| $min = $i; |
| } |
| } |
| $j = $min; |
| $cnt = 0; |
| while( $angles[$j][1] <= 90 ) { |
| $j++; |
| if( $j>=$n) { |
| $j=0; |
| } |
| if( $cnt > $n ) { |
| JpGraphError::RaiseL(14005); |
| //("Pie3D Internal error (#1). Trying to wrap twice when looking for start index"); |
| } |
| ++$cnt; |
| } |
| $start = $j; |
| |
| // |
| // Step 3. Print slices in z-order |
| // |
| $cnt = 0; |
| |
| // First stroke all the slices between 90 and 270 (left half circle) |
| // counterclockwise |
| |
| while( $angles[$j][0] < 270 && $aaoption !== 2 ) { |
| |
| list($x,$y) = $adjexplode[$j]; |
| |
| $this->Pie3DSlice($img,$x,$y,$d,$h,$angles[$j][0],$angles[$j][1], |
| $z,$adjcolors[$j],$shadow); |
| |
| $last = array($x,$y,$j); |
| |
| $j++; |
| if( $j >= $n ) $j=0; |
| if( $cnt > $n ) { |
| JpGraphError::RaiseL(14006); |
| //("Pie3D Internal Error: Z-Sorting algorithm for 3D Pies is not working properly (2). Trying to wrap twice while stroking."); |
| } |
| ++$cnt; |
| } |
| |
| $slice_left = $n-$cnt; |
| $j=$start-1; |
| if($j<0) $j=$n-1; |
| $cnt = 0; |
| |
| // The stroke all slices from 90 to -90 (right half circle) |
| // clockwise |
| while( $cnt < $slice_left && $aaoption !== 2 ) { |
| |
| list($x,$y) = $adjexplode[$j]; |
| |
| $this->Pie3DSlice($img,$x,$y,$d,$h,$angles[$j][0],$angles[$j][1], |
| $z,$adjcolors[$j],$shadow); |
| $j--; |
| if( $cnt > $n ) { |
| JpGraphError::RaiseL(14006); |
| //("Pie3D Internal Error: Z-Sorting algorithm for 3D Pies is not working properly (2). Trying to wrap twice while stroking."); |
| } |
| if($j<0) $j=$n-1; |
| $cnt++; |
| } |
| |
| // Now do a special thing. Stroke the last slice on the left |
| // halfcircle one more time. This is needed in the case where |
| // the slice close to 270 have been exploded. In that case the |
| // part of the slice close to the center of the pie might be |
| // slightly nagged. |
| if( $aaoption !== 2 ) |
| $this->Pie3DSlice($img,$last[0],$last[1],$d,$h,$angles[$last[2]][0], |
| $angles[$last[2]][1],$z,$adjcolors[$last[2]],$shadow); |
| |
| |
| if( $aaoption !== 1 ) { |
| // Now print possible labels and add csim |
| $img->SetFont($this->value->ff,$this->value->fs); |
| $margin = $img->GetFontHeight()/2 + $this->value->margin ; |
| for($i=0; $i < count($data); ++$i ) { |
| $la = $labeldata[$i][0]; |
| $x = $labeldata[$i][1] + cos($la*M_PI/180)*($d+$margin)*$this->ilabelposadj; |
| $y = $labeldata[$i][2] - sin($la*M_PI/180)*($h+$margin)*$this->ilabelposadj; |
| if( $this->ilabelposadj >= 1.0 ) { |
| if( $la > 180 && $la < 360 ) $y += $z; |
| } |
| if( $this->labeltype == 0 ) { |
| if( $sum > 0 ) |
| $l = 100*$data[$i]/$sum; |
| else |
| $l = 0; |
| } |
| elseif( $this->labeltype == 1 ) { |
| $l = $data[$i]; |
| } |
| else { |
| $l = $this->adjusted_data[$i]; |
| } |
| if( isset($this->labels[$i]) && is_string($this->labels[$i]) ) |
| $l=sprintf($this->labels[$i],$l); |
| |
| $this->StrokeLabels($l,$img,$labeldata[$i][0]*M_PI/180,$x,$y,$z); |
| |
| $this->AddSliceToCSIM($i,$labeldata[$i][1],$labeldata[$i][2],$h*2,$d*2,$z, |
| $originalangles[$i][0],$originalangles[$i][1]); |
| } |
| } |
| |
| // |
| // Finally add potential lines in pie |
| // |
| |
| if( $edgecolor=="" || $aaoption !== 0 ) return; |
| |
| $accsum = 0; |
| $a = $startangle; |
| $a = $this->NormAngle($a); |
| |
| $a *= M_PI/180.0; |
| |
| $idx=0; |
| $img->PushColor($edgecolor); |
| $img->SetLineWeight($edgeweight); |
| |
| $fulledge = true; |
| for($i=0; $i < count($data) && $fulledge; ++$i ) { |
| if( empty($this->explode_radius[$i]) ) |
| $this->explode_radius[$i]=0; |
| if( $this->explode_radius[$i] > 0 ) { |
| $fulledge = false; |
| } |
| } |
| |
| |
| for($i=0; $i < count($data); ++$i, ++$idx ) { |
| |
| $da = $data[$i]/$sum * 2*M_PI; |
| $this->StrokeFullSliceFrame($img,$xc,$yc,$a,$a+$da,$d,$h,$z,$edgecolor, |
| $this->explode_radius[$i],$fulledge); |
| $a += $da; |
| } |
| $img->PopColor(); |
| } |
| |
| function StrokeFullSliceFrame(&$img,$xc,$yc,$sa,$ea,$w,$h,$z,$edgecolor,$exploderadius,$fulledge) { |
| $step = 0.02; |
| |
| if( $exploderadius > 0 ) { |
| $la = ($sa+$ea)/2; |
| $xc += $exploderadius*cos($la); |
| $yc -= $exploderadius*sin($la) * ($h/$w) ; |
| |
| } |
| |
| $p = array($xc,$yc,$xc+$w*cos($sa),$yc-$h*sin($sa)); |
| |
| for($a=$sa; $a < $ea; $a += $step ) { |
| $p[] = $xc + $w*cos($a); |
| $p[] = $yc - $h*sin($a); |
| } |
| |
| $p[] = $xc+$w*cos($ea); |
| $p[] = $yc-$h*sin($ea); |
| $p[] = $xc; |
| $p[] = $yc; |
| |
| $img->SetColor($edgecolor); |
| $img->Polygon($p); |
| |
| // Unfortunately we can't really draw the full edge around the whole of |
| // of the slice if any of the slices are exploded. The reason is that |
| // this algorithm is to simply. There are cases where the edges will |
| // "overwrite" other slices when they have been exploded. |
| // Doing the full, proper 3D hidden lines stiff is actually quite |
| // tricky. So for exploded pies we only draw the top edge. Not perfect |
| // but the "real" solution is much more complicated. |
| if( $fulledge && !( $sa > 0 && $sa < M_PI && $ea < M_PI) ) { |
| |
| if($sa < M_PI && $ea > M_PI) |
| $sa = M_PI; |
| |
| if($sa < 2*M_PI && (($ea >= 2*M_PI) || ($ea > 0 && $ea < $sa ) ) ) |
| $ea = 2*M_PI; |
| |
| if( $sa >= M_PI && $ea <= 2*M_PI ) { |
| $p = array($xc + $w*cos($sa),$yc - $h*sin($sa), |
| $xc + $w*cos($sa),$z + $yc - $h*sin($sa)); |
| |
| for($a=$sa+$step; $a < $ea; $a += $step ) { |
| $p[] = $xc + $w*cos($a); |
| $p[] = $z + $yc - $h*sin($a); |
| } |
| $p[] = $xc + $w*cos($ea); |
| $p[] = $z + $yc - $h*sin($ea); |
| $p[] = $xc + $w*cos($ea); |
| $p[] = $yc - $h*sin($ea); |
| $img->SetColor($edgecolor); |
| $img->Polygon($p); |
| } |
| } |
| } |
| |
| function Stroke(&$img,$aaoption=0) { |
| $n = count($this->data); |
| |
| // If user hasn't set the colors use the theme array |
| if( $this->setslicecolors==null ) { |
| $colors = array_keys($img->rgb->rgb_table); |
| sort($colors); |
| $idx_a=$this->themearr[$this->theme]; |
| $ca = array(); |
| $m = count($idx_a); |
| for($i=0; $i < $m; ++$i) |
| $ca[$i] = $colors[$idx_a[$i]]; |
| $ca = array_reverse(array_slice($ca,0,$n)); |
| } |
| else { |
| $ca = $this->setslicecolors; |
| } |
| |
| |
| 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 ; |
| |
| if( $this->radius <= 1 ) { |
| $width = floor($this->radius*min($img->width,$img->height)); |
| // Make sure that the pie doesn't overflow the image border |
| // The 0.9 factor is simply an extra margin to leave some space |
| // between the pie an the border of the image. |
| $width = min($width,min($xc*0.9,($yc*90/$this->angle-$width/4)*0.9)); |
| } |
| else { |
| $width = $this->radius * ($aaoption === 1 ? 2 : 1 ) ; |
| } |
| |
| // Add a sanity check for width |
| if( $width < 1 ) { |
| JpGraphError::RaiseL(14007);//("Width for 3D Pie is 0. Specify a size > 0"); |
| } |
| |
| // Establish a thickness. By default the thickness is a fifth of the |
| // pie slice width (=pie radius) but since the perspective depends |
| // on the inclination angle we use some heuristics to make the edge |
| // slightly thicker the less the angle. |
| |
| // Has user specified an absolute thickness? In that case use |
| // that instead |
| |
| if( $this->iThickness ) { |
| $thick = $this->iThickness; |
| $thick *= ($aaoption === 1 ? 2 : 1 ); |
| } |
| else |
| $thick = $width/12; |
| $a = $this->angle; |
| if( $a <= 30 ) $thick *= 1.6; |
| elseif( $a <= 40 ) $thick *= 1.4; |
| elseif( $a <= 50 ) $thick *= 1.2; |
| elseif( $a <= 60 ) $thick *= 1.0; |
| elseif( $a <= 70 ) $thick *= 0.8; |
| elseif( $a <= 80 ) $thick *= 0.7; |
| else $thick *= 0.6; |
| |
| $thick = floor($thick); |
| |
| if( $this->explode_all ) |
| for($i=0; $i < $n; ++$i) |
| $this->explode_radius[$i]=$this->explode_r; |
| |
| $this->Pie3D($aaoption,$img,$this->data, $ca, $xc, $yc, $width, $this->angle, |
| $thick, 0.65, $this->startangle, $this->edgecolor, $this->edgeweight); |
| |
| // Adjust title position |
| if( $aaoption != 1 ) { |
| $this->title->Pos($xc,$yc-$this->title->GetFontHeight($img)-$width/2-$this->title->margin, "center","bottom"); |
| $this->title->Stroke($img); |
| } |
| } |
| |
| //--------------- |
| // PRIVATE METHODS |
| |
| // Position the labels of each slice |
| function StrokeLabels($label,&$img,$a,$xp,$yp,$z) { |
| $this->value->halign="left"; |
| $this->value->valign="top"; |
| |
| // 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); |
| 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; |
| |
| $x = round($xp-$dx*$w); |
| $y = round($yp-$dy*$h); |
| |
| |
| // Mark anchor point for debugging |
| /* |
| $img->SetColor('red'); |
| $img->Line($xp-10,$yp,$xp+10,$yp); |
| $img->Line($xp,$yp-10,$xp,$yp+10); |
| */ |
| $oldmargin = $this->value->margin; |
| $this->value->margin=0; |
| $this->value->Stroke($img,$label,$x,$y); |
| $this->value->margin=$oldmargin; |
| |
| } |
| } // Class |
| |
| /* EOF */ |
| ?> |