Re: [thredds] how to call WCS GetCoverage request?

• To: thredds@xxxxxxxxxxxxxxxx
• Subject: Re: [thredds] how to call WCS GetCoverage request?
• From: John Maurer <jmaurer@xxxxxxxxxx>
• Date: Fri, 20 May 2011 11:32:02 -1000

On Fri, May 20, 2011 at 11:21 AM, John Caron <caron@xxxxxxxxxxxxxxxx> wrote:

>  On 5/12/2011 6:43 PM, John Maurer wrote:
>
> Hi all,
> I'm struggling with my first attempt to download a GeoTIFF using WCS from
> TDS. I know this requires a GetCoverage request, but I get a "File not
> found" error no matter what I've tried so far. GetCapabilities and
> DescribeCoverage work, and I already have WCS allow=true and
> allowRemote=true in threddsConfig.xml. The TDS logs do not say much of
> anything. Is there something else I need to "turn on" before GetCoverage
> will work?
>
> GetCapabilities (works):
>
>    -
>    
> http://oos.soest.hawaii.edu/thredds/wcs/pacioos/ncom/global/NCOM_Global_Ocean_Model_best.ncd?service=WCS&version=1.0.0&request=GetCapabilities
>
>
> DescribeCoverage (works):
>
>    -
>    
> http://oos.soest.hawaii.edu/thredds/wcs/pacioos/ncom/global/NCOM_Global_Ocean_Model_best.ncd?service=WCS&version=1.0.0&request=DescribeCoverage&coverage=water_temp
>
>
> GetCoverage (all give "File not found" error):
>
>    -
>    
> http://oos.soest.hawaii.edu/thredds/wcs/pacioos/ncom/global/NCOM_Global_Ocean_Model_best.ncd?service=WCS&version=1.0.0&request=GetCoverage&FORMAT=GeoTIFF&COVERAGE=water_temp&CRS=EPSG:4326&BBOX=127.529296875,-15.623036831528252,277.3828125,59.80063426102869&WIDTH=1705&HEIGHT=1034&TIME=2011-05-13T00:00:00Z&ELEVATION=0
>    -
>    
> http://oos.soest.hawaii.edu/thredds/wcs/pacioos/ncom/global/NCOM_Global_Ocean_Model_best.ncd?service=WCS&version=1.0.0&request=GetCoverage
>    -
>    
> http://oos.soest.hawaii.edu/thredds/wcs/pacioos/ncom/global/NCOM_Global_Ocean_Model_best.ncd?service=WCS
>
> Ideas? Wrong syntax? A bug?
> Thanks!,
> John Maurer
> Pacific Islands Ocean Observing System (PacIOOS)
> University of Hawaii at Manoa
>
>
>
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>
>
> ok, if you can manage to see the actual *&#^# message that gets returned
> (eg use control-U in firefox or chrome)  :
>
> <?xml version="1.0" encoding="UTF-8"?>
> <ServiceExceptionReport 
> xmlns="http://www.opengis.net/ogc";<http://www.opengis.net/ogc>version="1.2.0">
>   <ServiceException code="InvalidParameterValue" locator="CRS">Request CRS
> [EPSG:4326] not allowed [OGC:CRS84].</ServiceException>
> </ServiceExceptionReport>
>
> anyway, removing 
> &CRS=EPSG:4326<http://oos.soest.hawaii.edu/thredds/wcs/pacioos/ncom/global/NCOM_Global_Ocean_Model_best.ncd?service=WCS&version=1.0.0&request=GetCoverage&FORMAT=GeoTIFF&COVERAGE=water_temp&CRS=EPSG:4326&BBOX=127.529296875,-15.623036831528252,277.3828125,59.80063426102869&WIDTH=1705&HEIGHT=1034&TIME=2011-05-13T00:00:00Z&ELEVATION=0>returns
>  a decent looking file.
>
> we dont actually allow any coordinate transformations, so you can have any
> color you want as long as its black.
>


Ah-ha! OK, THANKS! I can now get a GeoTIFF, so I'm off and running. This
particular one appears to have some dateline wrap-around issues, but I'll
have to see if I can dodge that somehow or not...
Cheers,
John Maurer

• References:
  • [thredds] how to call WCS GetCoverage request?
    • From: John Maurer
  • Re: [thredds] how to call WCS GetCoverage request?
    • From: John Caron