[mapserver-users] Fwd: Constraining WMS output type

[Rahkonen Jukka]

Hi,

Try with something like this and then using &format=image/png in WMS GetMap should produce 8-bit png.


OUTPUTFORMAT
  NAME "png8"
  DRIVER AGG/PNG8
  MIMETYPE "image/png"
  IMAGEMODE RGB
  EXTENSION "png"
  FORMATOPTION "QUANTIZE_FORCE=on"
  FORMATOPTION "QUANTIZE_COLORS=256"
  FORMATOPTION "GAMMA=0.75"
END

-Jukka Rahkonen-

________________________________
Lähettäjä: Jan Hartmann [j.l.h.hartmann at uva.nl]
Lähetetty: 12. maaliskuuta 2012 17:08
Vastaanottaja: Rahkonen Jukka
Kopio: mapserver-users at lists.osgeo.org
Aihe: Re: [mapserver-users] Fwd: Constraining WMS output type

"wms-getmap_formatlist" works, but if I specify "image/jpeg,image/png; mode=8bit,image/gif", qgis doesn't offer png as an output format anymore. It just doen't know 8-bits png. I saw they are working on it:

https://github.com/qgis/Quantum-GIS/commit/3a2c0e9872270fbd62d6bfcd9149d9d2a16c09cf

So, it's a qgis problem. The metadata item is nice to know, though.

Thanks,

Jan
On 03/12/2012 03:03 PM, Rahkonen Jukka wrote:

Hi,

I would have a try by defining a 8-bit png outputformat for img/png MIME type and using wms_getmap_formatlist in the metadata. How have you defined the png8 now in your mapfile?

-Jukka Rahkonen-
________________________________
Jan Hartmann wrote:




Hi all,


Is there a way to restrict the output types Mapserver offers as a WMS service, e.g. only png 8-bits? In QGIS, when I choose "png" as output for a WMS layer, I always get back png24 rasters, even if I explicitly specify png8 as outputtype in the mapfile.


Not sure if this would be according to the WMS specs, though.
Jan


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