Re: IDV display error

• To: Lukas Lehner <lehner@xxxxxxxxxxxxxx>
• Subject: Re: IDV display error
• From: Don Murray <dmurray@xxxxxxxxxxxxxxxx>
• Date: Thu, 15 Mar 2007 07:13:58 -0600

Hi Lukas-

This is a bug in the netcdf-Java library that was distributed
with IDV 2.1.  It has since been fixed and the fix is available
in the latest stable beta and nightly build.  You can access
either of those from:

http://www.unidata.ucar.edu/software/idv/release

Sorry for the inconvenience.

Don Murray

Lukas Lehner wrote:

Dear IDV users

I'm trying to modify our in house data to comply with CF convention and
also to work with IDV.

Here http://www.cs.cas.cz/~lehner/t2.nc is a small portion, a sample. It can be loaded well, it show

the correct area. But if I try to display it show the following error.


Unable to load t2 field

java.lang.NullPointerException
    at
ucar.nc2.dataset.CoordinateAxis2D.getCoordValues(CoordinateAxis2D.java:86)
    at

ucar.unidata.data.grid.GeoGridAdapter.getInitialSpatialDomain(GeoGridAdapter.java:735)

    at

ucar.unidata.data.grid.GeoGridAdapter.getSpatialDomainSet(GeoGridAdapter.java:381)

    at

ucar.unidata.data.grid.GeoGridAdapter.getFlatField(GeoGridAdapter.java:1033)

    at

ucar.unidata.data.grid.GeoGridAdapter.makeSequence(GeoGridAdapter.java:1162)

    at
ucar.unidata.data.grid.GeoGridAdapter.getSequence(GeoGridAdapter.java:983)
    at

ucar.unidata.data.grid.GeoGridDataSource.makeFieldImpl(GeoGridDataSource.java:832)

    at

ucar.unidata.data.grid.GeoGridDataSource.getDataInner(GeoGridDataSource.java:604)

    at ucar.unidata.data.DataSourceImpl.getData(DataSourceImpl.java:1510)

at ucar.unidata.data.DirectDataChoice.getData(DirectDataChoice.java:319)

    at ucar.unidata.data.DataChoice.getData(DataChoice.java:550)
    at ucar.unidata.data.DataInstance.getData(DataInstance.java:239)
    at ucar.unidata.data.DataInstance.getData(DataInstance.java:203)
    at
ucar.unidata.data.grid.GridDataInstance.init(GridDataInstance.java:204)
    at
ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:161)
    at
ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:142)
    at

ucar.unidata.idv.control.PlanViewControl.doMakeDataInstance(PlanViewControl.java:1050)

    at

ucar.unidata.idv.control.DisplayControlImpl.initializeDataInstance(DisplayControlImpl.java:2719)

    at

ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlImpl.java:2701)

    at
ucar.unidata.idv.control.PlanViewControl.setData(PlanViewControl.java:415)
    at

ucar.unidata.idv.control.ContourPlanViewControl.setData(ContourPlanViewControl.java:115)

    at
ucar.unidata.idv.control.PlanViewControl.init(PlanViewControl.java:321)
    at

ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1172)

    at

ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:925)

    at
ucar.unidata.idv.ControlDescriptor.initControl(ControlDescriptor.java:946)
    at ucar.unidata.idv.ControlDescriptor$1.run(ControlDescriptor.java:874)
    at ucar.unidata.util.Misc$2.run(Misc.java:931)

It's a little bit strange, the two validators
http://motherlode.ucar.edu:8080/thredds/cdmValidate.html and
http://titania.badc.rl.ac.uk/cgi-bin/cf-checker.pl show correct results.
I'm running IDV from webstart on linux platform (ubuntu).
Would you please take a look at this problem?

Lukas

*************************************************************
Don Murray                               UCAR Unidata Program
dmurray@xxxxxxxxxxxxxxxx                        P.O. Box 3000
(303) 497-8628                              Boulder, CO 80307
http://www.unidata.ucar.edu/staff/donm
*************************************************************

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