php使用Jpgraph绘制3D饼状图的方法

<?php 
include ("src/jpgraph.php"); 
include ("src/jpgraph_pie.php"); 
include ("src/jpgraph_pie3d.php"); 
$data = array(19,23,34,38,45,67,71,78,85,87,90,96); 
$graph = new PieGraph(400,300); 
$graph->SetShadow(); 
$graph->title->Set("年度收支表"); 
$graph->title->SetFont(FF_SIMSUN,FS_BOLD); 
$pieplot = new PiePlot3D($data); //创建PiePlot3D对象 
$pieplot->SetCenter(0.4); //设置饼图中心的位置 
$pieplot->SetLegends($gDateLocale->GetShortMonth()); //设置图例 
$graph->Add($pieplot); 
$graph->Stroke(); 
?>