[mapserver-users] AGG_Q + raster problem

[Guillaume Sueur]

quantize_colors=255 is maybe the reason why your colors are reindexed on 
a 256 colors palette.

Hans Castorp a écrit :
> Thanks Brent, but there is a mistake, the example I attached is not the
> mapservers original output: I have prepared it and give .gif extensión.
> 
> This is the way I configure my output:
> 
>   OUTPUTFORMAT
>     NAME 'AGG_Q'
>     DRIVER AGG/PNG
>     IMAGEMODE RGBA
> 	FORMATOPTION "TRANSPARENT=ON"
>     FORMATOPTION "QUANTIZE_FORCE=ON"
>     FORMATOPTION "QUANTIZE_DITHER=OFF"
>     FORMATOPTION "QUANTIZE_COLORS=255"
>   END
> 
> Thanks in advance.
> 
> 
> 
> 
> -----Mensaje original-----
> De: Brent Fraser [mailto:bfraser at geoanalytic.com] 
> Enviado el: lunes, 18 de febrero de 2008 18:17
> Para: Hans Castorp
> CC: mapserver-users at lists.osgeo.org
> Asunto: Re: [mapserver-users] AGG_Q + raster problem
> 
> Hans,
> 
>   GIF supports only 256 colors.  Use PNG (or JPG) for an output format.
> 
> Brent Fraser
> 
>> Hi to all,
>>
>>
>>
>> I’m trying to publish a cartography using both vectorial and raster
>> layers.
>> I’m using mapserver 5 and agg_q as output format. There is no problem
>> about
>> vectorial files (shapefiles): all work fine.
>>
>> The only problem I’m having is trying to publish some raster stuff: an
>> aerial photo (.geotiff) and a digital terrain model (.ecw). I’m not
>> capable
>> to make the output showing real colours; there is an example attached to
>> this mail (an aerial photo).
>>
>>
>>
>> My mapfile looks in this way:
>>
>>
>>
>> LAYER
>>         NAME "MDT"
>>         STATUS DEFAULT
>>         GROUP "MDT"
>>         TYPE raster
>>         DATA "mdt.tif"
>>         CLASS
>>                MINSCALE 15000
>>         END
>> END
>>
>> LAYER
>>         NAME "ORTOFOTO"
>>         STATUS DEFAULT
>>         GROUP "ORTOFOTO"
>>         TYPE raster
>>         DATA "ortofoto.ecw"
>>         CLASS
>>                MAXSCALE 15000
>>         END
>> END
>>
>>
>>
>> What I have to do to solve this?
>>
>>
>>
>> Thanks in advance to everyone.
>>
>>
>>
>>
>>
>> Hans Castorp
> 
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Guillaume SUEUR
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