[Qgis-user] qgis-server: how remove jpeg output format

[Andreas Neumann]

Hi Andrea,

If jpeg output isn't working for your there is something wrong with your
installation (maybe the jpeg library is not properly linked).

I think that JPEG output is useful for orthoimages. Most other maps
where you have a lot of homogeneous areas with few colors are better
handled by PNG 8bit. PNG is somewhere in between. As you said - only PNG
can handle transparency, if you add TRANSPARENT=TRUE in your GetMap request.

I don't think that you can filter the available output formats with QGIS
server. I also think that it is not too useful to filter the formats.
There may be WMS clients that can only handle JPEG and not PNG or
vice/versa. You don't want to exclude these clients. You never know
exactly who your clients are - so better offer a wider selection of formats.

Andreas

Am 23.02.2014 09:24, schrieb Andrea Peri:
> Hi,
> Using qgis-server I have three kind of outpup format:
> 
> png, png8 and jpeg.
> 
> QGIS use by default the jpeg output,
> but unfortunately it seem don't work correctly infact the jpeg output is
> always a white image.
> 
> Instead the png output format work perfectly.
> 
> I'm not interesting to understand why jpeg will return a white image,
> infact the jpeg is not a good format for my need. It don't allow the
> trasparent.
> So I prefer surely if the qgis-server don't return the jpeg in the list of
> output format.
> For my need is sufficient the only png format.
> 
> There is an option to choose the availability output formats in the
> getcapabilites response ?
> 
> Thx,
> 
> 
> 
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