pChart 2.0 online documentation

initialiseImageMap - Initialise your image map

This function allows you to initialise your image map recording mode (session or file).

If you choose to save the imagemap on the server filesystem you must ensure that the web server have enough rights to create and delete files in the temporary folder given.

Calling this function

initialiseImageMap($Name="pChart",$StorageMode=IMAGE_MAP_STORAGE_SESSION,$UniqueID="imageMap",$StorageFolder="tmp")

Where :

Name is the name of your image map.

UniqueID is the unique ID of image map (will be used as the file name if recording on disk).

StorageFolder is the name of the temporary folder where will be stored the image map (if recording on disk).

The image map can be stored in two ways depending of the value given to the StorageMode parameter :

IMAGE_MAP_STORAGE_SESSION to store the coordinates in the user Session.

IMAGE_MAP_STORAGE_FILE to store the coordinates on the server disk.

Sample script

This will create a file named /tmp/BarChart.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 the pChart object */
 $myPicture = new pImage(700,230,$MyData);

 /* Set the image map name */
 $myPicture->initialiseImageMap("ImageMapBarChart",IMAGE_MAP_STORAGE_FILE,"BarChart","/tmp");

Last updated on 08/04/2011
by Jean-Damien

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