[mapserver-users] Re: How to make MapServer WMS/WCS support multi-band raster data

[Yaxing Wei]

FYI.

Yaxing Wei

Postdoctoral Research Associate

Environmental Science Division
Oak Ridge National Laboratory
P.O. Box 2008, MS 6407
Oak Ridge, TN 37830

Phone: 865-241-3403
Fax:   865-574-4665



Yaxing Wei wrote:
> I'm trying to put some GeoTIFF format raster data with multiple bands 
> into MapServer WMS and WCS.
>
> My goal is:
> - For WMS, use something like "bands=2" in a WMS request to retrieve 
> an image of a specific band.
> - For WCS, use something like "bands=2" or "bands=2,4,7" in a WCS 
> request to retrieve data of some specific bands.
>
> What I did is:
> - In the mapfile for WCS, I added
>            "wcs_rangeset_axes"   "bands"
>   in the LAYER's METADATA part, so I'm able to use "band=2" or 
> "band=4" to retrieve only ONE band in each WCS request. But I can't 
> retrieve multiple bands using something like "bands=2,4,7", the 
> Exception message looks like:
>           <ServiceException code="InvalidParameterValue" 
> locator="bands">msWCSGetCoverage(): WCS server error. Error specifying 
> "bands" parameter value(s).
>
> I have no idea at all about how to configure WMS mapfile to enable the 
> bands parameter.
>
> Can anyone help me to solve this issue? Thank you very much.
>
> Sincerely,
> Yaxing
>
>