NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.

To learn about what's going on, see About the Archive Site.

Re: Grib2 / Re: Supporting other data formats

Hi Rob:
Actually, this should work, i believe its a bug, ill let you know when we have a fix.
BTW, a workaround is to open the file locally in the IDV, and then copy the generated index (*.gbx) onto the web server in the same directory. This will speed access up, so its a good thing to do anyway. 


Rob Cermak wrote:


cc: to IDV group


the THREDDS package using nj22 already handles grib2 as well as grib1. the
grib decoders are written in java and can be used as a seperate package.
the IDV now can read grib1 and grib2 files directly.

robb...


Hmmm, I've got IDV 1.2b2 and tried to point it via URL (directly) to
a grib1 and grib2 file and fails.  I would be wonderful to have IDV work
directly on grib1 and grib2 files. 
[cermak@glasgow bin]$ uname -a
Linux glasgow.ims.uaf.edu 2.6.8.1-10mdk #1 Wed Sep 8 17:00:52 CEST 2004 i686 Intel(R) Pentium(R) 4 CPU 2.26GHz unknown GNU/Linux 

Java = j2re1.4.2_06, its old

Rob

Grib1:
 http://ak.aoos.org/ldm2/conduit/nam_216/20050415/1200/PRMSL_000

Grib2:
 http://ak.aoos.org/ldm2/conduit/gfs_000/20050415/1200/PMSL_000
Open data source via web -> Grid files (netCDF/GRIB/OPeNDAP). Looks like the grid types are correctly detected. 

Grib1, error:
java.lang.NullPointerException
        at ucar.nc2.iosp.grib.Index2NC.open(Index2NC.java:20)
        at 
ucar.nc2.iosp.grib.Grib1ServiceProvider.open(Grib1ServiceProvider.java:75)
        at ucar.nc2.NetcdfFile.<init>(NetcdfFile.java:645)
        at ucar.nc2.NetcdfFile.open(NetcdfFile.java:263)
        at ucar.nc2.NetcdfFile.open(NetcdfFile.java:212)
        at ucar.nc2.dataset.NetcdfDataset.openFile(NetcdfDataset.java:226)
        at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:125)
        at ucar.nc2.dataset.grid.GridDataset.open(GridDataset.java:65)
        at ucar.nc2.dataset.grid.GridDataset.factory(GridDataset.java:74)
        at 
ucar.unidata.data.grid.GeoGridDataSource.doMakeDataSet(GeoGridDataSource.java:266)
        at 
ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSource.java:283)
        at 
ucar.unidata.data.grid.GeoGridDataSource.doMakeDataChoices(GeoGridDataSource.java:297)
        at 
ucar.unidata.data.DataSourceImpl.getDataChoices(DataSourceImpl.java:959)
        at ucar.unidata.data.DataManager.createDataSource(DataManager.java:850)
        at 
ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1280)
        at 
ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1218)
        at 
ucar.unidata.idv.IntegratedDataViewer.handleAction(IntegratedDataViewer.java:1075)
        at ucar.unidata.idv.DefaultIdv.handleAction(DefaultIdv.java:111)
        at 
ucar.unidata.idv.IntegratedDataViewer.handleAction(IntegratedDataViewer.java:1022)
        at ucar.unidata.idv.chooser.UrlChooser.loadURLInner(UrlChooser.java:176)
        at ucar.unidata.idv.chooser.UrlChooser.loadURL(UrlChooser.java:152)
        at ucar.unidata.idv.chooser.UrlChooser.access$000(UrlChooser.java:72)
        at ucar.unidata.idv.chooser.UrlChooser$1.run(UrlChooser.java:191)
        at ucar.unidata.util.Misc$2.run(Misc.java:773)

grib2 error:

java.lang.NullPointerException
        at ucar.nc2.iosp.grib.Index2NC.open(Index2NC.java:20)
        at 
ucar.nc2.iosp.grib.Grib2ServiceProvider.open(Grib2ServiceProvider.java:75)
        at ucar.nc2.NetcdfFile.<init>(NetcdfFile.java:645)
        at ucar.nc2.NetcdfFile.open(NetcdfFile.java:263)
        at ucar.nc2.NetcdfFile.open(NetcdfFile.java:212)
        at ucar.nc2.dataset.NetcdfDataset.openFile(NetcdfDataset.java:226)
        at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:125)
        at ucar.nc2.dataset.grid.GridDataset.open(GridDataset.java:65)
        at ucar.nc2.dataset.grid.GridDataset.factory(GridDataset.java:74)
        at 
ucar.unidata.data.grid.GeoGridDataSource.doMakeDataSet(GeoGridDataSource.java:266)
        at 
ucar.unidata.data.grid.GeoGridDataSource.getDataset(GeoGridDataSource.java:283)
        at 
ucar.unidata.data.grid.GeoGridDataSource.doMakeDataChoices(GeoGridDataSource.java:297)
        at 
ucar.unidata.data.DataSourceImpl.getDataChoices(DataSourceImpl.java:959)
        at ucar.unidata.data.DataManager.createDataSource(DataManager.java:850)
        at 
ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1280)
        at 
ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1218)
        at 
ucar.unidata.idv.IntegratedDataViewer.handleAction(IntegratedDataViewer.java:1075)
        at ucar.unidata.idv.DefaultIdv.handleAction(DefaultIdv.java:111)
        at 
ucar.unidata.idv.IntegratedDataViewer.handleAction(IntegratedDataViewer.java:1022)
        at ucar.unidata.idv.chooser.UrlChooser.loadURLInner(UrlChooser.java:176)
        at ucar.unidata.idv.chooser.UrlChooser.loadURL(UrlChooser.java:152)
        at ucar.unidata.idv.chooser.UrlChooser.access$000(UrlChooser.java:72)
        at ucar.unidata.idv.chooser.UrlChooser$1.run(UrlChooser.java:191)
        at ucar.unidata.util.Misc$2.run(Misc.java:773)
  • 2005 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the idvdevelopers archives: