This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
JP, What is this formula doing scientifically speaking? What is V1, V2, V3? Best, Unidata IDV Support > 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\dilbert\IDV_5.0u1\jre version: 1.7.0_51 > j3d:1.6.0-pre9-daily-experimental daily > Description of problem: Hi there, I got this error message > Creating display: Color-Shaded Plan View > visad.UnitException: visad.UnitException: FlatField: RangeUnits must be > convertable with RangeType default Units > FlatField: RangeUnits must be convertable with RangeType default Units > when I was running this program > def NX3(CAPE,SRH,V1,V2,V3): > cap=noUnit(make2D(CAPE)) > sh=noUnit(make2D(SRH)) > w1=noUnit(make2D(V1)) > w2=noUnit(make2D(V2)) > w3=noUnit(make2D(V3)) > shear=.5*((w1-w3)**2+(w2-w3)**2) > nx3=cap*sh*shear/4000000 > return nx3 > > > ****************** > Stack trace: > visad.UnitException: FlatField: RangeUnits must be convertable with RangeType > default Units > at visad.FlatField.<init>(FlatField.java:413) > at visad.FlatField.cloneFloat(FlatField.java:5606) > at visad.FlatField.unary(FlatField.java:3745) > at visad.FieldImpl.unary(FieldImpl.java:908) > at visad.DataImpl.unary(DataImpl.java:488) > at visad.DataImpl.sqrt(DataImpl.java:754) > at visad.python.JPythonMethods.sqrt(JPythonMethods.java:1074) > 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:387) > at org.python.core.PyObject.__call__(PyObject.java:391) > at org.python.pycode._pyx85.NX3$7(<string>:72) > at org.python.pycode._pyx85.call_function(<string>) > at org.python.core.PyTableCode.call(PyTableCode.java:165) > at org.python.core.PyBaseCode.call(PyBaseCode.java:301) > at org.python.core.PyFunction.function___call__(PyFunction.java:376) > at org.python.core.PyFunction.__call__(PyFunction.java:371) > at org.python.core.PyFunction.__call__(PyFunction.java:361) > at org.python.pycode._pyx89.f$0(<string>:1) > at org.python.pycode._pyx89.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:795) > 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.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: DME-432072 Department: Support IDV Priority: Normal Status: Closed