Hi,

It appears that you are right, the client only allows loading PNG
format. I tested with Arcgis and QGis in the 'bad' computer only PNG
format is available, BUT in the 'good', PNG, JPEG, PNG and TIFF are
available for the same WMS url:
http://oriondata.homedns.org:8542/cgi-bin/mapserv_jpeg?

Do you have any explanation to this strange behaviour ?

In the 'bad' computer, the grafical card is: NVDIA GForce 7050 PV/630A
in the 'good' one: ATI Radeon HD 2600... The issue could be relative to
the kind of graphical card ?

Thx,

Vincent



Rahkonen Jukka a écrit :
> Hi,
> 
> I strongly believe that Mapserver is sending identical jpegs to all your 
> computers and the reason is somewhere in the WMS client side. That does not 
> mean that everything is OK and you should just suffer.
> 
> Investigate the jpeg files that Mapserver is sending by saving some samples 
> on disk.  Open saved images with image processing software and have a look at 
> image information. Are images technically identical on each computer?  If 
> they are then there must be some differencies in your WMS clients or their 
> settings.
> 
> My guess is that the bad jpeg is not a jpeg at all but your WMS client is 
> asking for 8-bit png or gif.
> 
> -Jukka Rahkonen-
> 
> Vincent Blanqué wrote:
> 
> 
>> Hi,
>>
>> I have a problem with a WMS service in JPEG format. With 
>> various computers, I have a bad rendering of the JPEG tiles 
>> while with another rendering is perfect. You can watch 
>> screenshots joint to understand better the issue.
>>
>> My mapfile is written like:
>>
>> IMAGEQUALITY 95
>> IMAGETYPE jpeg
>>
>> OUTPUTFORMAT
>>      NAME jpeg
>>      DRIVER 'GD/JPEG'
>>      MIMETYPE 'image/jpeg'
>>      IMAGEMODE RGB
>>      EXTENSION 'jpeg'
>> END
>>
>> If you have any solution ?
>>
>> Thanks,
>>
>> Vincent
>>
>>
>>
> 

<<attachment: vincent_blanque.vcf>>

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