Java Mapscript - converting edu.umn.gis.mapscript.imageObj into a java.awt.image

[Benedikt Rothe]

Hi James

I think the following post contains the answer:
http://article.gmane.org/gmane.comp.gis.mapserver.user/17904/

The result of the getBytes-method of the imageObj is 
javax.imageio.ImageIO.read.

Benedikt

UMN MapServer Users List <MAPSERVER-USERS at LISTS.UMN.EDU> schrieb am 
10.04.2006 13:45:04:

> Hi,
> 
> I am working with java/mapscript and am trying to convert an 
> edu.umn.gis.mapscript.imageObj into some kind of java image object 
(ideally 
> something that implements java.awt.image.RenderedImage ? but anything 
would 
> be a start).  This is so I can manipulate the image, using JAI and 
java2d, 
> and then stream the modified image as a SOAP message response.
> 
> At the moment I am saving the image to a temporary file (java code shown 

> below), using the imageObj.save() method, and then reloading that image 
into 
> my java object.  This is not a desirable solution for obvious 
performance 
> and scalability reasons ? especially as I seem to need to pause after 
the 
> save to avoid the load command giving intermittent errors.
> 
> Does anybody have any experience of converting the imageObj into a more 
> useful java object?  Has anyone written a java or c method to aid this, 
or 
> found another way round a similar problem?
> 
> Regards,
> James
> 
> ---Java code snippet---
> 
> imageObj image = mapobj.draw();  //define imageObj
> 
> String filename = "/var/www/html/gis/scratch/maptemp.png";
> File filefilename = new File(filename);  // set temp file variables
> 
> image.save(filename, mapobj);  // save image to disk
> 
> Thread.sleep(1000); // pause to ensure has saved - avoids errors
> 
> BufferedImage bufimg = ImageIO.read(filefilename);  // load it again
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