Transparencies for land and sea

Has anyone had any success in making land or sea locations transparent
in a resulting .png? There are instances when I would like an image
to be overlayed on a map and let the underlying terrain map show
through. Using an image as a ground overlay in Google Earth would be
an example of such a usage.

Also, I've noticed that figurePatch.set_alpha(0.0) does not apply
transparency within the bounding box. I'm still ending up with white
areas within the bounding box. Can transparency be set within the
basemap box?

Thanks so much!



Bruce W. Ford
Clear Science, Inc.
Phone/Fax: 904-379-9704
8241 Parkridge Circle N.
Jacksonville, FL 32211
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