[Mapserver-users] Rosa Applet and Transparency

Thu Dec 19 23:09:29 PST 2002

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Hi everybody,

I am trying to customize the gmap example. Instead of extracting all layers 
from the map-file, I would like to add additional layers from other 
WMS-servers, e.g. the background satellite layer from one server, and the 
overlaying layers from the local machine. I succeed in getting the two 
layers above each other. But unfortunately the Rosa applet seems to fill 
the transparent parts of my (overlaying) PNG image with white color, so 
that I can't see anymore the background image. When I load the locally 
produced image into Photoshop I see that it is transparent.

Any ideas if the Rosa applet can be forced to take the transparent parts as 
they are and not to fill them white? Or any other ideas? I succeeded to 
work this thing out without using the Rosa applet. But because I would like 
to have the bounding box option I would like to use the Rosa applet.

Any help is very much appreciated. Thanks in advance.

Stefan

         _______________________________________

         Stefan Schwarzer
         Consultant on GEO

         UNEP/DEWA/GRID-Geneva
         Chemin des Anemones 11
         CH - 1219 Chatelaine
         Switzerland

         Tel: (+41) 22.917.83.49
         Fax: (+41) 22.917.80.29

         Internet: http://geodata.grid.unep.ch/
         _______________________________________ 
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Hi everybody,<br><br>
I am trying to customize the gmap example. Instead of extracting all
layers from the map-file, I would like to add additional layers from
other WMS-servers, e.g. the background satellite layer from one server,
and the overlaying layers from the local machine. I succeed in getting
the two layers above each other. But unfortunately the Rosa applet seems
to fill the transparent parts of my (overlaying) PNG image with white
color, so that I can't see anymore the background image. When I load the
locally produced image into Photoshop I see that it is
transparent.<br><br>
Any ideas if the Rosa applet can be forced to take the transparent parts
as they are and not to fill them white? Or any other ideas? I succeeded
to work this thing out without using the Rosa applet. But because I would
like to have the bounding box option I would like to use the Rosa
applet.<br><br>
Any help is very much appreciated. Thanks in advance.<br><br>
Stefan<br><br>
<x-sigsep><p></x-sigsep>
<font size=3><x-tab>        </x-tab>_______________________________________<br><br>
</font><font size=2><x-tab>        </x-tab><b>Stefan
Schwarzer<br>
</b><x-tab>        </x-tab>Consultant
on GEO<br><br>
<x-tab>        </x-tab>UNEP/DEWA/GRID-Geneva<br>
<x-tab>        </x-tab>Chemin des
Anemones 11<br>
<x-tab>        </x-tab>CH - 1219
Chatelaine<br>
<x-tab>        </x-tab>Switzerland<br><br>
<x-tab>        </x-tab>Tel: (+41)
22.917.83.49<br>
<x-tab>        </x-tab>Fax: (+41)
22.917.80.29<br><br>
<x-tab>        </x-tab>Internet:
<a href="http://geodata.grid.unep.ch/" eudora="autourl">http://geodata.grid.unep.ch/</a><br>
</font><font size=3><x-tab>        </x-tab>_______________________________________</font></body>
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