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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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To learn about what's going on, see About the Archive Site.
Thanks Don, that's very helpful. I guess as a workaround I could just set the bbox to [-180,-90,180,90] for a VerticalPerspectiveView? It's only a hint to a Web Map Service, so it won't affect any calculations. Cheers, Jon On Wed, Dec 2, 2009 at 3:40 PM, Don Murray <dmurray@xxxxxxxxxxxxxxxx> wrote: > Jon- > > The grib data represent a disc of the earth so the corners are off the > earth, thus the NaN's. Even so, the VerticalPerspectiveView does not > presently support a non-spherical earth, so the data are not exactly > navigated. This is a known issue and one that we have not yet had the time > to address. > > Don Murray > > Jon Blower wrote: >> >> Hi, >> >> We have a GRIB file can mostly be read using NetCDF-Java, except that >> the GridCoordSystem's lat-lon bounding box is a set of four NaNs. It >> uses a VerticalPerspectiveView projection. The attached test file may >> help to diagnose the problem and produces the following output: >> >> class ucar.unidata.geoloc.projection.VerticalPerspectiveView >> ll: NaNS NaNW+ ur: NaNS NaNW >> >> The data file itself can be downloaded from >> >> http://dl.dropbox.com/u/2984763/MSG2-SEVI-MSGCLMK-0100-0100-20091028120000.000000000Z-958792.grb. >> >> Can anyone offer any pointers? Is there a bug in the >> VerticalPerspectiveView code? >> >> Thanks, >> Jon >> >> >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> netcdf-java mailing list >> netcdf-java@xxxxxxxxxxxxxxxx >> For list information or to unsubscribe, visit: >> http://www.unidata.ucar.edu/mailing_lists/ > > -- > ************************************************************* > Don Murray UCAR Unidata Program > dmurray@xxxxxxxxxxxxxxxx P.O. Box 3000 > (303) 497-8628 Boulder, CO 80307 > http://www.unidata.ucar.edu/staff/donm > ************************************************************* > > -- Dr Jon Blower Technical Director, Reading e-Science Centre Environmental Systems Science Centre University of Reading Harry Pitt Building, 3 Earley Gate Reading RG6 6AL. UK Tel: +44 (0)118 378 5213 Fax: +44 (0)118 378 6413 j.d.blower@xxxxxxxxxxxxx http://www.nerc-essc.ac.uk/People/Staff/Blower_J.htm
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