source: trunk/xgraph/jpgraph/Examples/new_pie4.php

<?php // content="text/plain; charset=utf-8"
require_once ('jpgraph/jpgraph.php');
require_once ('jpgraph/jpgraph_pie.php');
require_once ('jpgraph/jpgraph_pie3d.php');

// Some data
$data = array(40,60,21,33);

$piepos = array(0.2,0.35,0.5,0.25,0.3,0.7,0.85,0.7);
$titles = array('USA','Sweden','South America','Australia');

$n = count($piepos)/2;
 
// A new graph
$graph = new PieGraph(450,300,'auto');

$theme_class="PastelTheme";
$graph->SetTheme(new $theme_class());

// Setup background
$graph->SetBackgroundImage('worldmap1.jpg',BGIMG_FILLFRAME);

// Setup title
$graph->title->Set("Pie plots with background image");
$graph->title->SetColor('white');
$graph->SetTitleBackground('#4169E1',TITLEBKG_STYLE2,TITLEBKG_FRAME_FULL,'#4169E1',10,10,true);

$p = array();
// Create the plots
for( $i=0; $i < $n; ++$i ) {
    $p[] = new PiePlot3D($data);
}
for( $i=0; $i < $n; ++$i ) {
    $graph->Add($p[$i]);
}

// Position the four pies and change color
for( $i=0; $i < $n; ++$i ) {
    $p[$i]->SetCenter($piepos[2*$i],$piepos[2*$i+1]);
    $p[$i]->SetSliceColors(array('#1E90FF','#2E8B57','#ADFF2F','#DC143C','#BA55D3'));
}

// Set the titles
for( $i=0; $i < $n; ++$i ) {
    $p[$i]->title->Set($titles[$i]);
    $p[$i]->title->SetFont(FF_ARIAL,FS_NORMAL,8);
} 

for( $i=0; $i < $n; ++$i ) {
  $p[$i]->value->Show(false);
}

// Size of pie in fraction of the width of the graph
for( $i=0; $i < $n; ++$i ) {
    $p[$i]->SetSize(0.13);
}

for( $i=0; $i < $n; ++$i ) {
    $p[$i]->SetEdge(false);
    $p[$i]->ExplodeSlice(1,7);
}


$graph->Stroke();
?>