20050513: IDV - GFS 80km (Relative & Absolute Vort.)

>From: "John Yorks" <address@hidden>
>Organization: Millersville University
>Keywords: 200505131509.j4DF9Yup013026 IDV global grids

Hi John-

>Institution: Millersville University
>Package Version: 1.2b1
>Operating System: os.name:Linux; os.arch:i386; os.version:2.6.10-1.741_FC3; 
>Hardware Information: java.vendor:Sun Microsystems Inc.; java.version:1.4.2_01
> ; java.home:/usr/local/IDV_1.2b1/jre; 
>Inquiry: An error has occurred:
>ControlDescriptor.Creating display
>org.python.core.PyException

This is a known problem and we are working on a solution.  See the
following entry on the Known Problems list:

http://my.unidata.ucar.edu/content/software/IDV/docs/userguide/Bugs.html#faq1_cat3_11

>******************
>Stack trace:
>Traceback (innermost last):
>  File "<string>", line 1, in ?
>java.lang.NullPointerException
>       at visad.SampledSet.getNeighbors(SampledSet.java:167)
>       at visad.FlatField.derivative(FlatField.java:4063)
>       at visad.FlatField.derivative(FlatField.java:4292)
>       at ucar.unidata.data.grid.DerivedGridFactory.createRelativeVorticity(De
> rivedGridFactory.java:273)
>       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.jav
> a)
>       at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.jav
> a)
>       at org.python.core.PyObject.__call__(PyObject.java)
>       at org.python.core.PyObject.invoke(PyObject.java)
>       at org.python.pycode._pyx9.f$0(<string>:1)
>       at org.python.pycode._pyx9.call_function(<string>)
>       at org.python.core.PyTableCode.call(PyTableCode.java)
>       at org.python.core.PyCode.call(PyCode.java)
>       at org.python.core.Py.runCode(Py.java)
>       at org.python.core.__builtin__.eval(__builtin__.java)
>       at org.python.core.__builtin__.eval(__builtin__.java)
>       at org.python.util.PythonInterpreter.eval(PythonInterpreter.java)
>       at ucar.unidata.data.DerivedDataChoice.getData(DerivedDataChoice.java:8
> 25)
>       at ucar.unidata.data.DataChoice.getData(DataChoice.java:488)
>       at ucar.unidata.data.DataInstance.getData(DataInstance.java:204)
>       at ucar.unidata.data.DataInstance.getData(DataInstance.java:169)
>       at ucar.unidata.data.grid.GridDataInstance.init(GridDataInstance.java:1
> 75)
>       at ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java
> :138)
>       at ucar.unidata.idv.control.GridDisplayControl.doMakeDataInstance(GridD
> isplayControl.java:209)
>       at ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlIm
> pl.java:1977)
>       at ucar.unidata.idv.control.ThreeDSurfaceControl.setData(ThreeDSurfaceC
> ontrol.java:217)
>       at ucar.unidata.idv.control.ThreeDSurfaceControl.init(ThreeDSurfaceCont
> rol.java:153)
>       at ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.
> java:890)
>       at ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.
> java:765)
>       at ucar.unidata.idv.ControlDescriptor.initControl(ControlDescriptor.jav
> a:739)
>       at ucar.unidata.idv.ControlDescriptor$1.run(ControlDescriptor.java:697)
>       at ucar.unidata.util.Misc$2.run(Misc.java:1718)
>
>java.lang.NullPointerException: java.lang.NullPointerException
>

Don Murray
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