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[IDV #HSQ-628431]: error loading netcdf file



Greetings John,

It looks like you may need to add some metadata to your file so that the IDV 
can understand completely the variables it contains. The easiest way to do this 
would be to use NCML - if you upload a sample file, I can see what I can come 
up with for you:

http://motherlode.ucar.edu/repository/entry/show/RAMADDA/Unidata/Software/IDV/Support+Uploads

Cheers,

Sean

> Full Name: John Kim
> Email Address: address@hidden
> Organization: USFS
> Package Version: 3.0u2 build date:2012-02-10 17:21 UTC
> Operating System: Linux
> Hardware: Java: home: /opt/idv/IDV_3.0u2/jre version: 1.6.0_20 j3d:1.5.2 fcs 
> (build4)
> Description of problem:
> 
> I'm just trying to load a simple netcdf file. The file structure is like this:
> 
> # ncdump -h trans_lynx_vtype_modes.nc
> netcdf trans_lynx_vtype_modes {
> dimensions:
> lon = 1297 ;
> lat = 1345 ;
> time = UNLIMITED ; // (1 currently)
> variables:
> short vegtype(time, lat, lon) ;
> vegtype:units = "None. The values are categories." ;
> vegtype:long_name = "Mode calculated from multiple years." ;
> float lon(lon) ;
> float lat(lat) ;
> short time(time) ;
> 
> // global attributes:
> :Title = "Mode veg type calculated from multiple years." ;
> }
> 
> And here is the error message I get:
> 
> There was an error loading the data:
> 
> Error creating data source:netcdf.point with: 
> /users/jkim/MC1-CA/trans_lynx_vtype_modes.nc
> Point obs data source failed making data set: 
> /users/jkim/MC1-CA/trans_lynx_vtype_modes.nc
> Unable to make a PointDataset from 
> /users/jkim/MC1-CA/trans_lynx_vtype_modes.nc
> Error = NestedTable: cant find variable lat for coordinate type Lat
> NestedTable: cant find variable lon for coordinate type Lon
> 
> Table Structure(record) featureType POINT: lat/lon/time coord not found
> 
> 
> ******************
> Stack trace:
> ucar.unidata.data.BadDataException: Unable to make a PointDataset from 
> /users/jkim/MC1-CA/trans_lynx_vtype_modes.nc
> Error = NestedTable: cant find variable lat for coordinate type Lat
> NestedTable: cant find variable lon for coordinate type Lon
> 
> Table Structure(record) featureType POINT: lat/lon/time coord not found
> 
> at 
> ucar.unidata.data.point.NetcdfPointDataSource.doMakeDataset(NetcdfPointDataSource.java:282)
> at 
> ucar.unidata.data.point.NetcdfPointDataSource.getDataset(NetcdfPointDataSource.java:252)
> at 
> ucar.unidata.data.point.NetcdfPointDataSource.initAfterCreation(NetcdfPointDataSource.java:209)
> at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1577)
> at 
> ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1980)
> at 
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1897)
> at 
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1831)
> at 
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1804)
> at ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:943)
> at ucar.unidata.idv.chooser.FileChooser.selectFilesInner(FileChooser.java:656)
> at ucar.unidata.idv.chooser.FileChooser.selectFiles(FileChooser.java:525)
> at ucar.unidata.idv.chooser.FileChooser.doLoadInThread(FileChooser.java:547)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at ucar.unidata.util.Misc$2.run(Misc.java:1062)
> at ucar.unidata.util.Misc$3.run(Misc.java:1090)
> 
> 
> 


Ticket Details
===================
Ticket ID: HSQ-628431
Department: Support IDV
Priority: Normal
Status: Open


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