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20040826: IDV - units problem trying to make flow vectors from archived model data (NOMADS)

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  • Subject: 20040826: IDV - units problem trying to make flow vectors from archived model data (NOMADS)
  • Date: Thu, 26 Aug 2004 12:23:32 -0600
>From: "Nathan Uhlenbrock" <address@hidden>
>Organization: CIMSS
>Keywords: 200408261813.i7QIDYZh027546 IDV vector units

Hi Nate-

>Institution: CIMSS
>Package Version: 1.1
>Operating System: os.name:Windows XP; os.arch:x86; os.version:5.1; 
>Hardware Information: java.vendor:Sun Microsystems Inc.; java.version:1.4.2_01
> ; java.home:C:\\Program Files\\IDV_1.1b3\\jre; 
>Inquiry: An error has occurred:
>ControlDescriptor.Creating display
>EarthVectorType components must be convertable with meter / second: null
>
>I was trying to display flow vectors from archived GFS model data from NOMADS 
> in vector plan view and I received the above units error.

The problem is that the model data is returning null units for some
reason.  Can you give me a pointer to the dataset with the problem
and the steps you used to produce the error?


>******************
>Stack trace:
>visad.TypeException: EarthVectorType components must be convertable with meter
>  / second: null
>       at visad.EarthVectorType.<init>(EarthVectorType.java:57)
>       at ucar.unidata.data.grid.GridDataInstance.getNewType(GridDataInstance.
> java:350)
>       at ucar.unidata.data.grid.GridDataInstance.init(GridDataInstance.java:2
> 66)
>       at ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java
> :137)
>       at ucar.unidata.idv.control.GridDisplayControl.doMakeDataInstance(GridD
> isplayControl.java:202)
>       at ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlIm
> pl.java:1887)
>       at ucar.unidata.idv.control.PlanViewControl.setData(PlanViewControl.jav
> a:328)
>       at ucar.unidata.idv.control.PlanViewControl.init(PlanViewControl.java:2
> 90)
>       at ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.
> java:802)
>       at ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.
> java:728)
>       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$1.run(Misc.java:1438)
>
>
>

Don Murray
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