Transparent raster images

[Jan-Oliver Wagner]

On Mon, May 02, 2005 at 09:41:25AM +0200, Martin Schulze wrote:
> Thuban.UI.renderer contains draw_raster_data() which seems to support
> an alpha channel and is supposed to support some sort of transparency.
> 
> How is this supposed to work?  In the WMS extension I can order the
> server to create a GIF or PNG image with a transparent background.
> I'd like to pass this information to the renderer, but don't know
> how.  Any hint or links to explanations would be appreciated.

Jonathan worked on this.
I haven't had a close look at the stuff yet, but
maybe you can learn from the GDAL stuff.

Else, Jonathan might give a couple of hints.

	Jan
-- 
Jan-Oliver Wagner               http://intevation.de/~jan/

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