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[IDV #JMH-197775]: Error



> Full Name: JP Kalb
> Email Address: address@hidden
> Organization: SJSU
> Package Version: 5.0u1 build date:2014-08-08 16:54 UTC
> Operating System: Windows 7
> Hardware: Java: home: C:\Users\metr166\IDV_5.0u1\jre version: 1.7.0_51 
> j3d:1.6.0-pre9-daily-experimental daily
> Description of problem: Creating display: Contour Plan View
> Unknown return value type:org.python.core.PySingleton
> Value=Error
> Code:haines(t950,t850,d850)
> I got this error using this code
> t95=make2D(noUnit(t950))
> t85=make2D(noUnit(t850))
> d85=make2D(noUnit(d850))
> deltat=t95-t85
> dpp=t85-d85
> if deltat<4:
> s=1
> elif 4<=deltat<8:
> s=2
> else:
> s=3
> if dpp<6:
> m=1
> elif 6<=dpp<10:
> m=2
> else:
> m=3
> h=m+s
> return h
> what is the problem with this code?
> 

The IDV can only take VisAD type in its formula return, and the variable h is 
not a valid type. 

We do have workshop here for you to learn more in depth knowledge.
 
Yuan
> ******************
> Stack trace:
> java.lang.IllegalArgumentException: Unknown return value 
> type:org.python.core.PySingleton
> Value=Error
> Code:haines(t950,t850,d850)
> at ucar.unidata.data.DerivedDataChoice.getData(DerivedDataChoice.java:821)
> 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:299)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.initializeDataInstance(DisplayControlImpl.java:3278)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlImpl.java:3234)
> at ucar.unidata.idv.control.PlanViewControl.setData(PlanViewControl.java:664)
> at 
> ucar.unidata.idv.control.ContourPlanViewControl.setData(ContourPlanViewControl.java:195)
> at ucar.unidata.idv.control.PlanViewControl.init(PlanViewControl.java:489)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1402)
> at 
> ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1085)
> 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:1243)
> 
> 
> 


Ticket Details
===================
Ticket ID: JMH-197775
Department: Support IDV
Priority: Normal
Status: Closed