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>From: "mike voss" <address@hidden> >Organization: SJSU >Keywords: 200601181947.k0IJlT8e010443 IDV bug Hi Mike- >Institution: sjsu >Package Version: 1.3b1 >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_08 > ; java.home:C:\\Program Files\\IDV_1.3B1\\jre; j3d.version:1.3.2 fcs (build12 > ); j3d.vendor:Sun Microsystems, Inc.; j3d.renderer:OpenGL; >Inquiry: (Just passing this along, not crictical...let me know if you want to > see these..thanks) You bet. This is a bug, thanks for finding it. We'll fix it in the next release, but for now, you can work around it by selecting the System->Layer Difference formula from the Formulas Data Source and when prompted for the parameter, use the geopotential height field. >Stack trace: >Traceback (innermost last): > File "<string>", line 1, in ? >java.lang.NullPointerException > at java.text.DecimalFormat.parse(Unknown Source) > at java.text.NumberFormat.parse(Unknown Source) > at ucar.unidata.util.Misc.parseValue(Misc.java:1557) > at ucar.unidata.data.grid.DerivedGridFactory.createLayerDifference(Deri > vedGridFactory.java:154) > 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.jav > a) > at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.jav > a) > at org.python.core.PyObject.__call__(PyObject.java) > at org.python.core.PyObject.invoke(PyObject.java) > at org.python.pycode._pyx9.f$0(<string>:1) > at org.python.pycode._pyx9.call_function(<string>) > at org.python.core.PyTableCode.call(PyTableCode.java) > at org.python.core.PyCode.call(PyCode.java) > at org.python.core.Py.runCode(Py.java) > at org.python.core.__builtin__.eval(__builtin__.java) > at org.python.core.__builtin__.eval(__builtin__.java) > at org.python.util.PythonInterpreter.eval(PythonInterpreter.java) > at ucar.unidata.data.DerivedDataChoice.getData(DerivedDataChoice.java:8 > 75) > at ucar.unidata.data.DataChoice.getData(DataChoice.java:526) > at ucar.unidata.data.DataInstance.getData(DataInstance.java:204) > at ucar.unidata.data.DataInstance.getData(DataInstance.java:169) > at ucar.unidata.data.grid.GridDataInstance.init(GridDataInstance.java:1 > 75) > at ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java > :138) > at ucar.unidata.idv.control.GridDisplayControl.doMakeDataInstance(GridD > isplayControl.java:216) > at ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlIm > pl.java:2410) > at ucar.unidata.idv.control.PlanViewControl.setData(PlanViewControl.jav > a:389) > at ucar.unidata.idv.control.PlanViewControl.init(PlanViewControl.java:3 > 06) > at ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl. > java:1091) > at ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl. > java:897) > at ucar.unidata.idv.ControlDescriptor.initControl(ControlDescriptor.jav > a:792) > at ucar.unidata.idv.ControlDescriptor$1.run(ControlDescriptor.java:750) > at ucar.unidata.util.Misc$2.run(Misc.java:806) > >java.lang.NullPointerException: java.lang.NullPointerException > > > Don Murray NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.