[IDV #RTE-857264]: "Samples do not form a valid grid"

> Full Name: Lauri Myllyvirta
> Email Address: address@hidden
> Organization: Greenpeace
> Package Version: 3.1u1 build date:2012-11-30 17:36 UTC
> Operating System: Windows 7
> Hardware: Java: home: C:\Program Files\IDV_3.1u1\jre version: 1.6.0_31 
> j3d:1.5.2 fcs (build4)
> Description of problem: Hello,
> 
> thank you for an excellent piece of software. I have been using the IDV
> to visualize atmospheric dispersion model runs (MSC-W model), that are
> generated in netCDF format. What I have done is import the netCDF data
> to IDV, calculate gridded differences in baseline and scenario run
> concentrations, and average the differences over time to get a
> dispersion map. So far so good. When I try to export the results to
> Excel in order to combine this data with population data, I get the
> error below. I see the data that I need in the data table display, I
> can switch between the native coordinates (50x50km grid) and lat-long
> coordinates etc, but cannot find a way to export without errors. I
> don't really need the data in a valid grid, I just need the raw table.
> 
> Writing grid to xls file: C:\Users\lmyllyvi\Documents\IDV\gerze
> Gridded2DSet: samples do not form a valid grid (6,109)
> 

Hi Lauri,
       Not very sure what is wrong here, could you upload a sample file here:

http://motherlode.ucar.edu/repository/alias/idvupload


Yuan
> Thank you so much for any help. Please instruct what files to pass on.
> The original input files are about 1 Gb each.
> 
> Best,
> 
> Lauri Myllyvirta
> 
> ******************
> Stack trace:
> visad.SetException: Gridded2DSet: samples do not form a valid grid (6,109)
> at visad.Gridded2DSet.<init>(Gridded2DSet.java:171)
> at visad.GriddedSet.create(GriddedSet.java:202)
> at visad.GriddedSet.create(GriddedSet.java:130)
> at ucar.visad.Util.newSampledSet(Util.java:905)
> at ucar.visad.Util.newSampledSet(Util.java:862)
> at ucar.visad.Util.newSampledSet(Util.java:830)
> at ucar.visad.Util.convertDomain(Util.java:708)
> at ucar.unidata.data.grid.GridUtil.writeGridToXls(GridUtil.java:5570)
> 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 org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:186)
> at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:204)
> at org.python.core.PyObject.__call__(PyObject.java:404)
> at org.python.core.PyObject.__call__(PyObject.java:408)
> at org.python.pycode._pyx95.writeGridToXls$36(<string>:332)
> at org.python.pycode._pyx95.call_function(<string>)
> at org.python.core.PyTableCode.call(PyTableCode.java:165)
> at org.python.core.PyBaseCode.call(PyBaseCode.java:149)
> at org.python.core.PyFunction.__call__(PyFunction.java:327)
> at org.python.pycode._pyx110.f$0(<string>:1)
> at org.python.pycode._pyx110.call_function(<string>)
> at org.python.core.PyTableCode.call(PyTableCode.java:165)
> at org.python.core.PyCode.call(PyCode.java:18)
> at org.python.core.Py.runCode(Py.java:1261)
> at org.python.core.__builtin__.eval(__builtin__.java:484)
> at org.python.core.__builtin__.eval(__builtin__.java:488)
> at org.python.util.PythonInterpreter.eval(PythonInterpreter.java:190)
> at ucar.unidata.data.DerivedDataChoice.getData(DerivedDataChoice.java:782)
> at ucar.unidata.data.DataChoice.getData(DataChoice.java:637)
> at ucar.unidata.data.DataInstance.getData(DataInstance.java:243)
> at ucar.unidata.data.DataInstance.getData(DataInstance.java:207)
> at ucar.unidata.data.grid.GridDataInstance.init(GridDataInstance.java:205)
> at ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:162)
> at ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:143)
> at 
> ucar.unidata.idv.control.GridDisplayControl.doMakeDataInstance(GridDisplayControl.java:284)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.initializeDataInstance(DisplayControlImpl.java:3176)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlImpl.java:3158)
> at 
> ucar.unidata.idv.control.GridTableControl.setData(GridTableControl.java:125)
> at ucar.unidata.idv.control.GridTableControl.init(GridTableControl.java:108)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1419)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1102)
> at ucar.unidata.idv.ControlDescriptor.initControl(ControlDescriptor.java:986)
> at ucar.unidata.idv.ControlDescriptor$1.run(ControlDescriptor.java:911)
> at ucar.unidata.util.Misc$3.run(Misc.java:1250)
> 
> 
> 


Ticket Details
===================
Ticket ID: RTE-857264
Department: Support IDV
Priority: Normal
Status: Open