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Greetings Patrick, Yes, the grids for your variable and topography must match. Does your output include Geopotential Height at the Surface? If so, then that should work. Cheers! Sean > Full Name: Patrick Campbell > Email Address: address@hidden > Organization: University of Wyoming > Package Version: 3.0u2 build date:2012-02-10 17:21 UTC > Operating System: Windows 7 > Hardware: Java: home: C:\Program Files\IDV_3.0u2\jre version: 1.6.0_20 > j3d:1.5.2 fcs (build4) > Description of problem: Creating display: Color-Filled Contours Over > Topography > FieldImpl.combine: domain dimensions of inputfields must match > FieldImpl.combine: domain dimensions of inputfields must match > > Hello, when trying to create a 3D surface over topography I get the error > above. For example when tyring to plot derived flow vectors (from U and V > WRF model output), using model output topography I get the error. Could you > just provide some more information on what would cause the error above? > Could this error arise if the model terrain resolution doesn't match the > model variable (e.g., U, V, Temp, etc...) resolution? > > Thanks, > Patrick > > ****************** > Stack trace: > visad.VisADException: FieldImpl.combine: domain dimensions of inputfields > must match > at visad.FieldImpl.combine(FieldImpl.java:1065) > at > ucar.unidata.data.grid.DerivedGridFactory.combineGrids(DerivedGridFactory.java:1408) > at > ucar.unidata.data.grid.DerivedGridFactory.combineGrids(DerivedGridFactory.java:1317) > at > ucar.unidata.data.grid.DerivedGridFactory.combineGrids(DerivedGridFactory.java:1294) > at > ucar.unidata.data.grid.DerivedGridFactory.combineGrids(DerivedGridFactory.java:1275) > at > ucar.unidata.data.grid.DerivedGridFactory.create2DTopography(DerivedGridFactory.java:972) > at > ucar.unidata.data.grid.DerivedGridFactory.create2DTopography(DerivedGridFactory.java:856) > 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:404) > at org.python.core.PyObject.__call__(PyObject.java:408) > at org.python.pycode._pyx85.f$0(<string>:1) > at org.python.pycode._pyx85.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:773) > 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:205) > at ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:162) > at ucar.unidata.data.grid.GridDataInstance.<init>(GridDataInstance.java:143) > at > ucar.unidata.idv.control.GridDisplayControl.doMakeDataInstance(GridDisplayControl.java:284) > at > ucar.unidata.idv.control.DisplayControlImpl.initializeDataInstance(DisplayControlImpl.java:3153) > at > ucar.unidata.idv.control.DisplayControlImpl.setData(DisplayControlImpl.java:3135) > at ucar.unidata.idv.control.PlanViewControl.setData(PlanViewControl.java:643) > at > ucar.unidata.idv.control.ContourPlanViewControl.setData(ContourPlanViewControl.java:194) > at ucar.unidata.idv.control.PlanViewControl.init(PlanViewControl.java:473) > 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:1090) > > > Ticket Details =================== Ticket ID: VTC-594882 Department: Support IDV Priority: Normal Status: Open