[Qgis-developer] open a WCS service

Frank Warmerdam warmerdam at pobox.com
Thu Feb 10 17:02:39 EST 2011


On 11-02-09 02:13 AM, Paolo Cavallini wrote:
> Hi all.
> My GDAL has WCS support. It is unclear however if and how could I open
> it. It is not present on the list of formats, and the interface requires
> a file rather than an address: should a button "Open WCS" be added to
> the GUI?
> Thanks.

Paolo,

I believe that would be desirable.  Then the GUI dialog could write the
WCS control file.  Note that the only two things required in the control
file are the Service URL and the coverage name.  But to offer the user
a list of coverage names you would need to actually fetch the capabilities
document - something I felt was out of scope for GDAL.

I believe ArcGIS has a dialog that does these steps.

PS. The wcs service file does not actually need to be written to disk if
you want to avoid problems with temporary files.  But doing so is good in
that it is used to cache details about the coverage for future use, and it
gives the end user a file where they can tweak some of the odder parameters.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent



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