Hi all,
I created a "merge" service for mapserver that, given some WMS getmap
requests, builds a geotiff merging together WMS getmap responses.
It creates an "on-the-fly" mapfile, with a LAYER CONNECTIONTYPE WMS for
each layer.
Everything works, except layers with OPACITY:
while the getmap response (agg png 8bit) is correctly opaque (features
are semi-trasparent), in the geotiff image they are not opaque anymore.
Trasparency is kept (where there's no features, I can see layers under),
but opacity is not (features are no more semi-trasparent and they cover
layers under).
Also, if I try to merge getmap responses using PHP/GD, features remain
correctly opaque.
Have you got any idea about why mapserver is modifying opacity while
merging?
Is there a way to avoid this?
Thank you
Regards
Francesco
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