--- a/lib/pChart2.1.0/examples/example.drawDerivative.simple.php
+++ b/lib/pChart2.1.0/examples/example.drawDerivative.simple.php
@@ -1,1 +1,46 @@
-
+<?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(3,12,15,8,5,-5,5,-5,-3,4,5,10),"Probe");

+ $MyData->setAxisName(0,"Temperatures");

+ $MyData->addPoints(array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"),"Labels");

+ $MyData->setSerieDescription("Labels","Months");

+ $MyData->setAbscissa("Labels");

+

+ /* Create the pChart object */

+ $myPicture = new pImage(700,230,$MyData);

+

+ /* Turn of AAliasing */

+ $myPicture->Antialias = FALSE;

+

+ /* Set the default font */ 

+ $myPicture->setFontProperties(array("R"=>0,"G"=>0,"B"=>0,"FontName"=>"../fonts/pf_arma_five.ttf","FontSize"=>6));

+

+ /* Define the chart area */

+ $myPicture->setGraphArea(50,40,680,170);

+

+ /* Draw the scale */

+ $scaleSettings = array("XMargin"=>10,"YMargin"=>10,"Floating"=>TRUE,"DrawSubTicks"=>TRUE,"GridR"=>100,"GridG"=>100,"GridB"=>100,"GridAlpha"=>15);

+ $myPicture->drawScale($scaleSettings);

+

+ /* Draw the chart */

+ $myPicture->Antialias = TRUE;

+ $myPicture->drawSplineChart();

+ $myPicture->Antialias = FALSE;

+

+ /* Draw the series derivative graph */

+ $myPicture->drawDerivative(array("Caption"=>FALSE));

+

+ /* Write the chart legend */

+ $myPicture->drawLegend(640,20,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));

+

+ /* Render the picture (choose the best way) */

+ $myPicture->autoOutput("pictures/example.drawDerivative.simple.png");

+?>