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drawZoneChart - Draw a zone chart between two data series

This function allows you to draw a zone chart betwenn two data. All the drawing parameters are given trough a $Format array. To learn more about this please read the Format array guide.

Calling this function
drawZoneChart ($SerieA,$SerieB,$Format="");
Where :
SerieA is the name of the 1st data serie to use.
SerieB is the name of the 2nd data serie to use.
Format is an array containing the drawing parameters of the chart.


Customisation array - Tune up your chart!

It is possible to customize the rendering by playing with this array. Providing a detailled configuration is not mandatory. You‘ll see below a representation of all the customization possible :

You can choose on which axis to bind the zone chart AxisID.
You can choose the border line colors with LineR,LineG,LineB,LineAlpha.
You can choose the border ticks intercal with LineTicks.
You can choose the filling colors with AreaR,AreaG,AreaB,AreaAlpha.


Sample script


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

 /* Create and populate the pData object */
 $MyData = new pData();
 for($i=0; $i<=10;$i=$i+.2)
  {
   $MyData->addPoints(log($i+1)*10,"Bounds 1");
   $MyData->addPoints(log($i+3)*10+rand(0,2)-1,"Probe");
   $MyData->addPoints(log($i+6)*10,"Bounds 2");
   $MyData->addPoints($i*10,"Labels");
  }
 $MyData->setAxisName(0,"Size (cm)");
 $MyData->setSerieDescription("Labels","Months");
 $MyData->setAbscissa("Labels");
 $MyData->setAbscissaName("Time (years)");

 /* Create the pChart object */
 $myPicture = new pImage(700,230,$MyData);

 /* Turn of Antialiasing */
 $myPicture->Antialias = FALSE;

 /* Add a border to the picture */
 $myPicture->drawRectangle(0,0,699,229,array("R"=>0,"G"=>0,"B"=>0));
 
 /* Write the chart title */ 
 $myPicture->setFontProperties(array("FontName"=>"../fonts/Forgotte.ttf","FontSize"=>11));
 $myPicture->drawText(150,35,"Size by time generations",array("FontSize"=>20,"Align"=>TEXT_ALIGN_BOTTOMMIDDLE));

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

 /* Define the chart area */
 $myPicture->setGraphArea(40,40,680,200);

 /* Draw the scale */
 $scaleSettings = array("LabelSkip"=>4,"XMargin"=>10,"YMargin"=>10,"Floating"=>TRUE,"GridR"=>200, "GridG"=>200,"GridB"=>200,"DrawSubTicks"=>TRUE,"CycleBackground"=>TRUE);
 $myPicture->drawScale($scaleSettings);

 /* Turn on Antialiasing */
 $myPicture->Antialias = TRUE;

 /* Draw the line chart */
 $myPicture->drawZoneChart("Bounds 1","Bounds 2");
 $MyData->setSerieDrawable(array("Bounds 1","Bounds 2"),FALSE);

 /* Draw the line chart */
 $myPicture->drawStepChart();

 /* 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.drawZoneChart.png");
Last updated on 08/03/2011 
by Jean-Damien 
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