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1998d  replaceImageMapTitle
1998d  replaceImageMapValues
1998d  createFunctionSerie
1998d  setAbsicssaPosition
1998d  negateValues
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replaceImageMapTitle - Replace the title recorded in the imagemap

This function allows you to replace the title recorded in the image map for a given data serie.

Calling this function
replaceImageMapTitle($OldTitle, $NewTitle);
Where :

OldTitle is the title recored automatically by the charting function.
NewTitle is the new title to use.


Sample script

This will create a file named /tmp/BarChart.labels.map to store the image map coordinates on the server.
 /* Library settings */ 
 define("CLASS_PATH", "../../../class"); 
 define("FONT_PATH", "../../../fonts"); 

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

 /* Create and populate the pData object */ 
 $MyData = new pData();   
 $MyData->addPoints(array(150,220,300,250,420,200,300,200,100),"Server A"); 
 $MyData->addPoints(array(140,VOID,340,300,320,300,200,100,50),"Server B"); 
 $MyData->setAxisName(0,"Hits"); 
 $MyData->addPoints(array("January","February","March","April","May","Juin","July","August","September"),"Months");
 $MyData->setSerieDescription("Months","Month"); 
 $MyData->setAbscissa("Months"); 

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

 /* Retrieve the image map */ 
 if (isset($_GET["ImageMap"]) || isset($_POST["ImageMap"])) 
 $myPicture->dumpImageMap("ImageMapBarChart",IMAGE_MAP_STORAGE_FILE,"BarChart.labels","../tmp");
 
 /* Set the image map name */ 
 $myPicture->initialiseImageMap("ImageMapBarChart",IMAGE_MAP_STORAGE_FILE,"BarChart.labels","../tmp");
 
 /* Turn of Antialiasing */ 
 $myPicture->Antialias = FALSE; 

 /* Draw the background */ 
 $Settings = array("R"=>170, "G"=>183, "B"=>87, "Dash"=>1, "DashR"=>190, "DashG"=>203, "DashB"=>107);
 $myPicture->drawFilledRectangle(0,0,700,230,$Settings); 

 /* Overlay with a gradient */ 
 $Settings = array("StartR"=>219, "StartG"=>231, "StartB"=>139, "EndR"=>1, "EndG"=>138, "EndB"=>68, "Alpha"=>50);
 $myPicture->drawGradientArea(0,0,700,230,DIRECTION_VERTICAL,$Settings); 

 /* Add a border to the picture */ 
 $myPicture->drawRectangle(0,0,699,229,array("R"=>0,"G"=>0,"B"=>0)); 

 /* Set the default font */ 
 $myPicture->setFontProperties(array("FontName"=>FONT_PATH."/pf_arma_five.ttf","FontSize"=>6));
 
 /* Define the chart area */ 
 $myPicture->setGraphArea(60,40,650,200); 

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

 /* Write the chart legend */ 
 $myPicture->drawLegend(580,12,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));
 
 /* Turn on shadow computing */  
 $myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
 
 /* Draw the chart */ 
 $myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
 $Settings = array("RecordImageMap"=>TRUE); 
 $myPicture->drawBarChart($Settings); 

 /* Replace the labels of the image map */ 
 $Labels = array("Jan: 140","Feb: 0","Mar: 340","Apr: 300","May: 320","Jun: 300","Jul: 200","Aug: 100","Sep: 50");
  $myPicture->replaceImageMapValues("Server B", $Labels); 

 /* Repalce the titles of the image map */ 
 $Titles = array("Jan 2k11","Feb 2k11","Mar 2k11","Apr 2k11","May 2k11","Jun 2k11","Jul 2k11","Aug 2k11","Sep 2k11");
 $myPicture->replaceImageMapTitle("Server A", "Second server"); 
 $myPicture->replaceImageMapTitle("Server B", $Titles); 

 /* Render the picture (choose the best way) */ 
 $myPicture->autoOutput("../tmp/BarChart.labels.png"); 
Last updated on 09/09/2011 
by Jean-Damien 
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