pchart - how to reduce the size of 3D pie Graph -

pchart - how to reduce the size of 3D pie Graph -

i need decrease size of 3d pie graph .i have changed $radius=100 $radius=50 in pchart.class not happening size of graph .i next link

http://pchart.sourceforge.net/documentation.php?topic=exemple11

this should do:

// pie chart radius of 100 $picture->drawpiegraph($dataset->getdata(), $dataset->getdatadescription(), 150, 150, 100, pie_percentage); // pie chart radius of 50 $picture->drawpiegraph($dataset->getdata(), $dataset->getdatadescription(), 150, 150, 50, pie_percentage);

can post relevant parts of code?

pchart