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MapServer / MapServer-import

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Transparency (alpha blending) for RASTER layers #933

Open tbonfort opened 12 years ago

tbonfort commented 12 years ago

Reporter: franck@sopac.org Date: 2004/10/05 - 01:32

At the moment we can choose a transparent color for a RASTER layer using OFFSITE.

What I would like is to overlay a RASTER layer over other layers and make this
RASTER layer 45% transparent.

We could introduce the keyword 
TRANSPARENCY dd
Where dd would be a transparency percentage from 0 to 100.

Applications: 
overlay a satellite weather map over a current map
overlay sea surface temperature over a bathymetric map
tbonfort commented 12 years ago

Author: sdlime Date: 2004/10/05 - 06:24

There is a transparency parameter and it should work for rasters already. Have
you tried it?

Steve
tbonfort commented 12 years ago

Author: franck@sopac.org Date: 2004/10/05 - 07:03

silly me...

yes TRANSPARENCY works... I may not have had a look to the new mapserver mapfile
for a while....