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

[thomas bonfort]

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