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Hi Ben and All, Following on from Ben's experiments I have attempted to get a bit more information about any problems the client had accessing various servers. My findings are below. Hopefully Ben can add these notes to the wiki when he has time. Regards, Dominic PFEG: ------- Have discussed this with Roy and it is a suspected problem with the Bounding Box extents on global datasets. Argoss: ---------- This server requires Width and Height parameters. Adding "width=600, height=400" to the parameters returns a different error possibly suggesting some type of file access problem on the server side ? <?xml version='1.0' encoding="ISO-8859-1" ?> <ServiceExceptionReport version="1.2.0"xmlns="http://www.opengis.net/ogc"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://www.opengis.net/ogc http://schemas.opengis.net/wms/1.1.1/OGC-exception.xsd";>
<ServiceException>msDrawRaster(): Unable to access file. (netCDF: %tidethamdata%:u) </ServiceException> </ServiceExceptionReport> BADC: -------- There is a bug with the BADC server which I've fixed in development but not deployed yet.GMU: ------
Have fixed bug in client wcs code on subversion, but now the server has XML content errors. e.g. this document seems to have invalid characters in it (and won't render in Firefox). http://data.laits.gmu.edu:8080/cgi-bin/wcs110?service=WCS&request=DescribeCoverage&version=1.1.0&identifiers=NETCDF%3A%22%2FData%2FG12IR04D20011013014200.nc%22%3ABand4_TEMP&format=text%2Fxml Uni of Florence: -------------------- I have fixed a couple of bugs in the client code and can now access the server. However I get a 'Content not allowed in prolog' error when trying to unpack the Multipart Mime response from a getCoverage request. I think that there may be some headers missing from the multipart mime response. i.e. I suspect there should be something like this: Content-Type: multipart/mixed; boundary="===============1992083144==" MIME-Version: 1.0 Before the XML and NetCDF parts. Here you can compare the response from the BADC server: wget "http://ndgbeta.badc.rl.ac.uk/wcs/badc.nerc.ac.uk__NDG-A0__AWQX8gTc?Service=WCS&request=GetCoverage&version=1.1.0&TimeSequence=2024-01-15T00:00:00.0&Format=cf-netcdf&store=false&BoundingBox=-80,10,80,100&Identifier=EhWv0qW5"; With the University of Florence server: wget "http://kronos.pin.unifi.it:8080/wcs-1.1.0-service/ogc-wcs?service=WCS&format=image%2FnetCDF&request=GetCoverage&version=1.1.0&identifier=23lug07H&store=false";But, I am by no means very familiar with MIME so I may easily have misinterpreted something. If anybody knows which (if either) is the correct way to deliver multipart MIMEs that would be most helpful.
On Tuesday 29 July 2008 00:10:10 Ben Domenico wrote:
Hi, Using the python client code developed at BADC by Dominic Lowe, I've run some very simple "tests" in an to see if I could retrieve a coverage from the WCS servers that GALEON participants have identified in the list at: http://galeon-wcs.jot.com/WikiHome/GALEON%20Phase2%20Main%20Page/GALEON%202 %20WCS%20Servers A brief summary of the results is given on the GALEON wiki at http://galeon-wcs.jot.com/WikiHome/GALEON%20WCS%20%22Tests%22 Please note that there has not been much opportunity to exercise this client against WCS 1.1.x servers so it is not surprising that there were some difficulties in those cases. Hopefully this will open a dialog on the issues that arise with such client/server interactions. -- Ben
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