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[IDV #YGJ-893554]: Error Multiplying Two Fields in IDV

Paul,

We are successfully able to view your formula in the IDV. CAPE and mixing ratio 
are available under 2D and 3D in the IDV Field Selector. Make sure you select 
the 3D fields for CAPE and mixing ratio.

Please keep us up-to-date on your progress.

Best wishes,

Unidata IDV Support

> Dear Unidata Support,
> 
> I was trying to multiply CAPE and the surface Mixing Ratio (derived
> quantity in this data set).
> 
> Any ideas as to what has gone wrong?
> 
> Thanks,
> 
> Paul
> 
> 
> address@hidden> wrote:
> 
> > Dear Paul,
> >
> > Can you explain a bit more about what you are trying to do here? I was
> > able to get your formula to work for some GFS data. What fields are you
> > trying to multiply? You can upload a sample data set at
> > http://motherlode.ucar.edu/repository/alias/idvupload.
> >
> > Best Wishes,
> >
> > Unidata IDV Support
> >
> > > Full Name: Paul Graham
> > > Email Address: address@hidden
> > > Organization: Weathersim
> > > Package Version: 4.1u1 build date:2013-09-25 07:05 UTC
> > > Operating System: Linux
> > > Hardware: Java: home: /usr/local/bin/IDV_4.1u1/jre version: 1.6.0_41
> > j3d:1.5.2 fcs (build4)
> > > Description of problem: Error occurs when using simple Jython method to
> > multiply two different fields together:
> > >
> > > def mulFields(F1,F2):
> > > return mul(F1,F2)
> > >
> > > Creating display: Color-Filled Contour Plan View
> > > java.lang.ClassCastException: java.lang.ClassCastException:
> > visad.LinearLatLonSet cannot be cast to visad.Gridded3DSet
> > > visad.LinearLatLonSet cannot be cast to visad.Gridded3DSet
> > >
> > > ******************
> > > Stack trace:
> > > java.lang.ClassCastException: visad.LinearLatLonSet cannot be cast to
> > visad.Gridded3DSet
> > > at
> > ucar.unidata.data.grid.DerivedGridFactory.createPressureGridFromDomain(DerivedGridFactory.java:3185)
> > > at
> > ucar.unidata.data.grid.DerivedGridFactory.createMixingRatio(DerivedGridFactory.java:2455)
> > > 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._pyx115.f$0(<string>:1)
> > > at org.python.pycode._pyx115.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:787)
> > > at
> > ucar.unidata.data.DerivedDataChoice.setData(DerivedDataChoice.java:635)
> > > at
> > ucar.unidata.data.DerivedDataChoice.collectOperands(DerivedDataChoice.java:586)
> > > at
> > ucar.unidata.data.DerivedDataChoice.getData(DerivedDataChoice.java:738)
> > > 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:206)
> > > at
> > ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:163)
> > > at
> > ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:144)
> > > at
> > ucar.unidata.idv.control.GridDisplayControl.doMakeDataInstance(GridDisplayControl.java:284)
> > > at
> > ucar.unidata.idv.control.DisplayControlImpl.initializeDataInstance(DisplayControlImpl.java:3224)
> > > at
> > ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlImpl.java:3206)
> > > at
> > ucar.unidata.idv.control.PlanViewControl.setData(PlanViewControl.java:641)
> > > at
> > ucar.unidata.idv.control.ContourPlanViewControl.setData(ContourPlanViewControl.java:194)
> > > at
> > ucar.unidata.idv.control.PlanViewControl.init(PlanViewControl.java:471)
> > > at
> > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1421)
> > > at
> > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1106)
> > > 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:1251)
> > >
> > >
> > >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: YGJ-893554
> > Department: Support IDV
> > Priority: Normal
> > Status: Closed
> >
> >
> 
> 
> --
> Paul Graham
> Email: address@hidden
> Mobile: 0403003784
> 
> 


Ticket Details
===================
Ticket ID: YGJ-893554
Department: Support IDV
Priority: Normal
Status: Closed