[mapserver-users] Transparent layers

Steve Lime steve.lime at dnr.state.mn.us
Fri Apr 12 11:32:35 EDT 2002


It is possible in the development version for 3.6. It now supports a
"TRANSPARENCY" parameter
(at the LAYER level) that takes an integer argument representing the %
of transparency to use.
100 is completely opaque, 50 is 50% transparent and so on. Color
limitations will definitely affect
the quality of the output. The samples I've seen are pretty good
though. For earlier versions you're
limited to hatched fills...

Steve

Stephen Lime
Data & Applications Manager

Minnesota DNR
500 Lafayette Road
St. Paul, MN 55155
651-297-2937

>>> Vinko Vrsalovic <v at w.cl> 04/12/02 10:19AM >>>

Hi folks,

        I need to apply a polygon layer over a raster and/or DEM
layer,
	the problem is the filled polygons cover the image, so it turns
        to be useless. I guess i can use the 'pseudopolyline' feature 
        (that is, ommiting the color sentence in the map file), but
what
        i'd really like is to draw the polygons with transparence. Is
it
        possible with the actual mapserver code?

thanks a lot,
-- 
Vinko Vrsalovic <vinko[@]cprsig.cl>
http://www.cprsig.cl



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