On 2/26/2015 5:56 PM, Basques, Bob (CI-StPaul) wrote:
All,
I’m trying to convert an older mapfile to use the new OUTPUTFORMAT
parameters, and not having much success in setting up a particular color
to be displayed as transparent in the resulting PNG.
Anyone have a Mapfile fragment as an example of using a particular color
as the transparent areas? NOTE: I’m displaying the background color, so
setting that to transparent is not going to work in this instance. I
need to use a specific RGB value.
Bob,
Set the background color to the color you want to be transparent.
If you need to have a background also, then create the first layer
similar to this and adjust it for your projections:
LAYER
NAME "background"
GROUP "cb"
STATUS ON
TYPE POLYGON
METADATA
ows_title "background"
ows_extent "-20037508.34 -20037508.34 20037508.34 20037508.34"
END
PROJECTION "init=epsg:900913" END
FEATURE
POINTS -20037508.34 -20037508.34 20037508.34 -20037508.34
20037508.34 20037508.34 -20037508.34 20037508.34 -20037508.34
-20037508.34 END
END
CLASS
STYLE
COLOR "#80B1D3"
END
END
END
-Steve W
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