<?php   
 /* CAT:Mathematical */

 /* pChart library inclusions */
 include("../class/pData.class.php");
 include("../class/pDraw.class.php");
 include("../class/pImage.class.php");

 /* Create and populate the pData object */
 $MyData = new pData();  
 $MyData->addPoints(array(-4,VOID,VOID,12,8,3),"Frontend #1");
 $MyData->addPoints(array(3,12,15,8,5,-5),"Frontend #2");
 $MyData->addPoints(array(2,7,5,18,19,22),"Frontend #3");
 $MyData->setAxisName(0,"Average Usage");
 $MyData->addPoints(array("Jan","Feb","Mar","Apr","May","Jun"),"Labels");
 $MyData->setSerieDescription("Labels","Months");
 $MyData->setAbscissa("Labels");

 /* Normalize the data series to 100% */
 $MyData->normalize(100,"%");

 /* Create the pChart object */
 $myPicture = new pImage(700,230,$MyData);
 $myPicture->drawGradientArea(0,0,700,230,DIRECTION_VERTICAL,array("StartR"=>240,"StartG"=>240,"StartB"=>240,"EndR"=>180,"EndG"=>180,"EndB"=>180,"Alpha"=>100));
 $myPicture->drawGradientArea(0,0,700,230,DIRECTION_HORIZONTAL,array("StartR"=>240,"StartG"=>240,"StartB"=>240,"EndR"=>180,"EndG"=>180,"EndB"=>180,"Alpha"=>20));

 /* Set the default font properties */
 $myPicture->setFontProperties(array("FontName"=>"../fonts/pf_arma_five.ttf","FontSize"=>6));

 /* Draw the scale and the chart */ 
 $myPicture->setGraphArea(60,20,680,190);
 $myPicture->drawScale(array("DrawSubTicks"=>TRUE,"Mode"=>SCALE_MODE_ADDALL));
 $myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
 $myPicture->drawStackedBarChart(array("DisplayValues"=>TRUE,"DisplayColor"=>DISPLAY_AUTO,"Rounded"=>FALSE,"Surrounding"=>60));
 $myPicture->setShadow(FALSE);

 /* Write the chart legend */ 
 $myPicture->drawLegend(480,210,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));

 /* Render the picture (choose the best way) */
 $myPicture->autoOutput("pictures/example.normalize.png");
?>