[mapserver-users] WCS GetCoverage responses in multi-part mime format

Stephan Meißl stephan at meissl.name
Thu Aug 18 09:29:52 EDT 2011


Bryan,

from my experience firefox does pretty good with multipart files.
Usually the first part is of type "text/xml" which is shown in the
browser directly and the second part is opened in an external image
viewer. Unfortunately I don't know a way how to turn multipart of with
WCS 1.1.

However, I do know that in WCS 2.0 you explicitly have to request
multipart files ("mediatype=multipart/mixed") which means by default
plain image files are returned. Please note that WCS 2.0 is a fairly new
standard which adopts the new modular specification model of OGC and
some of the extensions are not yet published which might cause some
problems for the time being.

Best regards,
Stephan


On Wed, 2011-08-17 at 17:04 +0200, Bryan Hempen wrote: 
> Hi there!
> 
> I am currently setting up a WCS server using MapServer 5.6.5. I am 
> serving hyperspectral images and my goal is to visualize a subset of 
> bands within a BBOX in a webclient. This should work fine if WCS 1.1.0 
> GetCoverage requests would not return results in a multi-part mime 
> format as stated on 
> http://mapserver.org/ogc/wcs_server.html#getcoverage. Browsers can't 
> seem to deal with this type of format.
> 
> I can't use WCS 1.0.0 requests because they do not allow for subsetting 
> of bands.
> Since I use MapServer version 5.6.5, WCS 2.0 is not supported, but if a 
> WCS 2.0 (as supported by MapServer 6.x) also returns GetCoverage 
> requests in a multi-part mime format it would be useless for me anyway.
> 
> Is there any way to turn off the response of WCS GetCoverage requests in 
> a multi-part mime format in MapServer?
> 
> If I upgrade to WCS 2.0, will I still have the same problem?
> 
> Or does anyone know how to make a browser visualize the image-part of 
> the reponse? I can't find anything useful on the web.
> 
> Thanks for your help,
> Bryan
> 
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