[mapserver-users] Using IMAGECOLOR to create a transparency mask

[Glenn Waldron]

Hi Thomas,

In that case maybe I am misunderstanding the purpose of IMAGECOLOR. What is
it supposed to do, if not make all pixels of the specified color
transparent?


Glenn Waldron : Pelican Mapping : http://pelicanmapping.com :
+1.703.652.4791


On Thu, Feb 5, 2009 at 1:24 PM, thomas bonfort <thomas.bonfort at gmail.com>wrote:

> On Thu, Feb 5, 2009 at 14:43, Glenn Waldron <gwaldron at gmail.com> wrote:
> > Stephen,
> >
> >  However, I am trying to
> > get the pixels in the final composited image to be completely
> transparent.
> >
>
> There's no way you can set pixels to become transparent once the image
> is saved with the AGG outputformat.
>
> regards,
> thomas
>
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