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setGrid - Define the size of the matrix

This function allows you to define the size of the matrix used for the surface chart.

Calling this function
setGrid($XSize=10,$YSize=10)
Where :

XSize is the width of the matrix.
YSize is the height of the matrix.


Sample script


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

 /* Create the pChart object */
 $myPicture = new pImage(210,100);

 /* Create a solid background */
 $Settings = array("R"=>179, "G"=>217, "B"=>91, "Dash"=>1, "DashR"=>199, "DashG"=>237, "DashB"=>111);
 $myPicture->drawFilledRectangle(0,0,210,100,$Settings);

 /* Do a gradient overlay */
 $Settings = array("StartR"=>194, "StartG"=>231, "StartB"=>44, "EndR"=>43, "EndG"=>107, "EndB"=>58, "Alpha"=>50);
 $myPicture->drawGradientArea(0,0,210,100,DIRECTION_VERTICAL,$Settings);
 $myPicture->drawGradientArea(0,0,210,20,DIRECTION_VERTICAL,array("StartR"=>0,"StartG"=>0,"StartB"=>0,"EndR"=>50,"EndG"=>50,"EndB"=>50,"Alpha"=>100));

 /* Add a border to the picture */
 $myPicture->drawRectangle(0,0,209,99,array("R"=>0,"G"=>0,"B"=>0));
 
 /* Write the picture title */ 
 $myPicture->setFontProperties(array("FontName"=>"../fonts/Silkscreen.ttf","FontSize"=>6));
 $myPicture->drawText(10,13,"pSurface() :: Surface charts",array("R"=>255,"G"=>255,"B"=>255));

 /* Define the charting area */
 $myPicture->setGraphArea(50,60,180,80);
 $myPicture->drawFilledRectangle(50,60,180,80,array("R"=>255,"G"=>255,"B"=>255,"Surrounding"=>-200,"Alpha"=>20));

 $myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1));

 /* Create the surface object */
 $mySurface = new pSurface($myPicture);

 /* Set the grid size */
 $mySurface->setGrid(9,1);

 /* Write the axis labels */
 $myPicture->setFontProperties(array("FontName"=>"../fonts/pf_arma_five.ttf","FontSize"=>6));

 $myPicture->setFontProperties(array("FontName"=>"../fonts/Bedizen.ttf","FontSize"=>7));

 $mySurface->writeXLabels(array("Angle"=>45,"Labels"=>array("Run 1","Run 2","Run 3","Run 4","Run 5","Run 6","Run 7","Run 8","Run 9","Run 10")));
 $mySurface->writeYLabels(array("Labels"=>array("Probe 1","Probe 2")));

 /* Add random values */
 for($i=0; $i<=10; $i++) { $mySurface->addPoint($i,rand(0,1),rand(0,100)); }

 /* Draw the surface chart */
 $mySurface->drawSurface(array("Border"=>TRUE,"Surrounding"=>40));

 /* Render the picture (choose the best way) */
 $myPicture->autoOutput("pictures/example.surface.simple.png");
Last updated on 03/28/2011 
by Jean-Damien 
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