pChart 2.0 online documentation

dumpImageMap - Dump your image map for client side processing

This function allows you to retrieve your image map so it can be processed client side.

When an image map is dumped using this function, the temporary file is deleted from the web server disk.

When the image map is dumped using this function the script stops.

Calling this function

dumpImageMap($Name="pChart",$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 is 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

When this script will be called given the ImageMap parameter (either thought a GET or POST variable), it returns the associated image map :

 /* 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);

 /* Retrieve the image map */
 if (isset($_GET["ImageMap"]) || isset($_POST["ImageMap"]))
  $myPicture->dumpImageMap("ImageMapBarChart",IMAGE_MAP_STORAGE_FILE,"BarChart","../tmp");

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

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