[IDV #BWP-558582]: Testing for NaNs in formulas

> Hello IDV support,
> 
> When I use the code you supplied I get the following error:
> 
> Creating display: Point Cloud
> > java.lang.ArrayIndexOutOfBoundsException:
> > java.lang.ArrayIndexOutOfBoundsException: 0
> > 0
> >
> 
> Details:
> 
> java.lang.ArrayIndexOutOfBoundsException: 0
> >     at
> > org.python.core.PyReflectedFunction.throwBadArgError(PyReflectedFunction.java:300)
> >     at
> > org.python.core.PyReflectedFunction.throwError(PyReflectedFunction.java:321)
> >     at
> > org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:167)
> >     at
> > org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:204)
> >     at org.python.core.PyObject.__call__(PyObject.java:387)
> >     at org.python.core.PyObject.__call__(PyObject.java:391)
> >     at org.python.pycode._pyx101.isNaN$1(<string>:5)
> >     at org.python.pycode._pyx101.call_function(<string>)
> >     at org.python.core.PyTableCode.call(PyTableCode.java:165)
> >     at org.python.core.PyBaseCode.call(PyBaseCode.java:134)
> >     at org.python.core.PyFunction.__call__(PyFunction.java:317)
> >     at org.python.pycode._pyx101.log10_py$2(<string>:11)
> >     at org.python.pycode._pyx101.call_function(<string>)
> >     at org.python.core.PyTableCode.call(PyTableCode.java:165)
> >     at org.python.core.PyBaseCode.call(PyBaseCode.java:134)
> >     at org.python.core.PyFunction.__call__(PyFunction.java:317)
> >     at org.python.pycode._pyx104.f$0(<string>:1)
> >     at org.python.pycode._pyx104.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.DataInstance.dataOk(DataInstance.java:295)
> >     at
> > ucar.unidata.idv.control.DisplayControlImpl.checkIfDataOk(DisplayControlImpl.java:3118)
> >     at
> > ucar.unidata.idv.control.DisplayControlImpl.initializeDataInstance(DisplayControlImpl.java:3215)
> >     at
> > ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlImpl.java:3183)
> >     at
> > ucar.unidata.idv.control.PointCloudControl.setData(PointCloudControl.java:700)
> >     at
> > ucar.unidata.idv.control.PointCloudControl.init(PointCloudControl.java:471)
> >     at
> > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1450)
> >     at
> > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1131)
> >     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)
> >
> 
> Have you tested against data containing NaNs?
> 
> I was getting this error before, which is why I contacted support in the
> first place.
> 
> Thank you.
> 

The code has been tested in the IDV, and the error message has nothing to do 
with the isNaN(a) function. Please provide detail information of how this 
funciton been called.



Yuan
> address@hidden> wrote:
> 
 
> >
> > Ok, my bad.
> >
> > Here is a real working example:
> >
> > from java.lang import Double
> >
> > def example_py(val):
> >     if not isNaN(val):
> >       val = val * 2
> >     return val
> >
> > def isNaN(a):
> >     return Double.isNaN(a)
> >
> >
> > Yuan
> > >
 

Ticket Details
===================
Ticket ID: BWP-558582
Department: Support IDV
Priority: Normal
Status: Open