[IDV #YIX-913245]: Error loading 3D isosurface

> Full Name: W. Session
> Email Address: address@hidden
> Organization: FSU Dept. of Meteorology
> Package Version: 2.8u1 build date:2010-02-02 22:30 UTC
> Operating System: Linux
> Hardware: Java: home: /users/sessions/prgms/IDV_2.8u1/jre version: 1.6.0_17 
> j3d:1.5.2 fcs (build4)
> Description of problem: When I attempt to create a 3D isosurface, I get the 
> following error:
> 
> Couldn't get data
> SampledSet.init_samples: sample#2 length 1620000 doesn't match expected 
> length 1624500
> 
> The netcdf file is a lat/lon grid (-179.5-179.5 W/E, -89.5-89.5 S/N   1x1 
> deg) with 25 vertical sigma levels.  The 3D fields I'm interested in are 
> pressure and extinction (sigma x lat x lon).  The file opens fine in NCVIEW, 
> NCL, and IDL, so this may be a CF standards issue.
> 
> IDV 2.8u1 on RH Linux.
> 
Hi Walter,
   If the dataset follows the CF conventions, the IDV should be able to display 
it. Could you upload a sample file here:
http://motherlode.ucar.edu/repository/alias/idvupload

I would like to trace the problem locally.


Yuan
> Here is the ncdump header information for the file, if this helps:
> 
> netcdf farop {
> dimensions:
> lon = 360 ;
> lat = 180 ;
> sigma = 25 ;
> variables:
> float longitude(lon) ;
> longitude:long_name = "longitude" ;
> longitude:standard_name = "longitude" ;
> longitude:units = "degrees_east" ;
> float latitude(lat) ;
> latitude:long_name = "latitude" ;
> latitude:standard_name = "latitude" ;
> latitude:units = "degrees_north" ;
> float pressure(sigma, lat, lon) ;
> pressure:long_name = "pressure" ;
> pressure:units = "hPa" ;
> pressure:positive = "down" ;
> pressure:standard_name = "air_pressure" ;
> float surface_pressure(lat, lon) ;
> surface_pressure:long_name = "surface pressure" ;
> surface_pressure:units = "hPa" ;
> surface_pressure:coordinates = "longitude latitude" ;
> float aerosol_extinction(sigma, lat, lon) ;
> aerosol_extinction:long_name = "aerosol extinction" ;
> aerosol_extinction:units = "1/m" ;
> aerosol_extinction:coordinates = "pressure longitude latitude" ;
> float ptop ;
> ptop:long_name = "pressure at top of model" ;
> ptop:units = "hPa" ;
> float sigma(sigma) ;
> sigma:long_name = "sigma at layer midpoints" ;
> sigma:standard_name = "atmosphere_sigma_coordinate" ;
> sigma:formula_terms = "sigma: sigma ps: surface_pressure ptop: ptop" ;
> 
> // global attributes:
> :Conventions = "CF-1.0" ;
> }
> 
> 
> ******************
> Stack trace:
> visad.SetException: SampledSet.init_samples: sample#2 length 1620000 doesn't 
> match expected length 1624500
> at visad.SampledSet.init_samples(SampledSet.java:232)
> at visad.GriddedSet.<init>(GriddedSet.java:78)
> at visad.Gridded3DSet.<init>(Gridded3DSet.java:83)
> at visad.GriddedSet.create(GriddedSet.java:218)
> at 
> ucar.unidata.data.grid.GeoGridAdapter.makeDomainWithVerticalTransform(GeoGridAdapter.java:1018)
> at 
> ucar.unidata.data.grid.GeoGridAdapter.getSpatialDomainSetInner(GeoGridAdapter.java:441)
> at 
> ucar.unidata.data.grid.GeoGridAdapter.getSpatialDomainSet(GeoGridAdapter.java:356)
> at 
> ucar.unidata.data.grid.GeoGridAdapter.getFlatField(GeoGridAdapter.java:1143)
> at 
> ucar.unidata.data.grid.GeoGridAdapter.makeSequence(GeoGridAdapter.java:1332)
> at ucar.unidata.data.grid.GeoGridAdapter.getSequence(GeoGridAdapter.java:1087)
> at 
> ucar.unidata.data.grid.GeoGridDataSource.makeFieldImpl(GeoGridDataSource.java:1708)
> at 
> ucar.unidata.data.grid.GeoGridDataSource.getDataInner(GeoGridDataSource.java:1280)
> at ucar.unidata.data.DataSourceImpl.getData(DataSourceImpl.java:2235)
> at ucar.unidata.data.DirectDataChoice.getData(DirectDataChoice.java:332)
> at ucar.unidata.data.DataChoice.getData(DataChoice.java:637)
> 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:202)
> at ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:159)
> at ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:140)
> at 
> ucar.unidata.idv.control.GridDisplayControl.doMakeDataInstance(GridDisplayControl.java:299)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.initializeDataInstance(DisplayControlImpl.java:3040)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlImpl.java:3022)
> at 
> ucar.unidata.idv.control.ThreeDSurfaceControl.setData(ThreeDSurfaceControl.java:249)
> at 
> ucar.unidata.idv.control.ThreeDSurfaceControl.init(ThreeDSurfaceControl.java:155)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1302)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1003)
> at ucar.unidata.idv.ControlDescriptor.initControl(ControlDescriptor.java:987)
> at ucar.unidata.idv.ControlDescriptor$1.run(ControlDescriptor.java:912)
> at ucar.unidata.util.Misc$3.run(Misc.java:1096)
> 
> 
> 


Ticket Details
===================
Ticket ID: YIX-913245
Department: Support IDV
Priority: Normal
Status: Open