[mapserver-users] Problem with Transparency and IMAGECOLOR

[Worth Lutz]

For me it works using:

 

IMAGETYPE png

 

With no “OUTPUTFORMAT” in my mapfile.  

 

I’m using the predefined OUTPUTFORMAT of “png”.

 

There are several predefined OUTPUTFORMATs described at:
http://mapserver.org/mapfile/outputformat.html .

 

I hope this helps.

 

Worth Lutz

 

 

  _____  

From: mapserver-users-bounces at lists.osgeo.org
[mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Johannes
Weskamm
Sent: Monday, December 17, 2012 8:16 AM
To: mapserver-users at lists.osgeo.org
Subject: [mapserver-users] Problem with Transparency and IMAGECOLOR

 

Hi,

I have a question regarding the transparency of my mapfile together with
mapserver 6.2.
The documentation tells me, that using the Parameter IMAGECOLOR together
with TRANSPARENT ON in OUTPUTFORMAT, the resulting image of a wms request
should have the defined color transparent.

I tried different approaches but none of them work.

So here is an example of my layer:

LAYER
    TYPE POLYGON
    STATUS ON
    GROUP "default"
    NAME "land"
    PROJECTION
        "init=epsg:900913"
    END
    DATA "../shapefiles/test"
    CLASS
        STYLE
            COLOR 255 255 0
        END
    END
END

The relevant Map parameters:

OUTPUTFORMAT
    NAME 'test'
    DRIVER GD/PNG
    IMAGEMODE PC256
    FORMATOPTION "INTERLACE=false"
    TRANSPARENT ON
END

IMAGECOLOR 255 255 0 

I also tried agg/png drivers together with IMAGEMODE RGBA, but all
combinations give me a yellow, non transparent response (i request the layer
with transparent=true and image/png as format).

Can anyone give me an advice what i am doing wrong, or is this a bug?
Thanks,

J. Weskamm




-- 

Dipl.-Geogr. Johannes Weskamm
— Anwendungsentwickler —

terrestris GmbH & Co. KG
Pützchens Chaussee 56
53227 Bonn 

Tel:   +49 (0)228 / 96 28 99 -555
Fax:   +49 (0)228 / 96 28 99 -57

Email: weskamm at terrestris.de
Web:   http://www.terrestris.de 

Amtsgericht Bonn, HRA 6835
Komplementärin: terrestris Verwaltungsgesellschaft mbH
vertreten durch: Hinrich Paulsen, Till Adams 

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