Does your data have time? If not, you don't need to specify the time=10000 attribute at all. So SelectionWriter is the thing that's coming from your plugin? Does it support writing empty datasets? Can you attach a debugger and see where is crashes? Are you sure it's not crashing in the writer? I dont' see why UpdatePipeline() on extract selection would crash. Instead of using a macro, try manually typing the text in the python shell to see exactly what line causes the segfault.
BTW, ExtractSelection needs two inputs: 'Input" and "Selection" where Selection is set to the SelectionQuerySource proxy. Utkarsh On Mon, Apr 19, 2010 at 10:34 AM, Christian Werner <christian.wer...@rwth-aachen.de> wrote: > I am afraid UpdatePipeline doesn't help, even if I set the time to some high > value. Paraview crashes right in the moment where I start this macro: > > extract=ExtractSelection(Input=ConnectivityFilter) > > UpdatePipeline(time= 10000, proxy=extract) > > mFilename = destPath + str( time() ) > > swriter=SelectionWriter(Input=extract) > > swriter.FileName=mFilename > > swriter.UpdatePipeline() > > > When I manually select Fiters->ExtractSelection and then do: > > mFilename = destPath + str( time() ) > > swriter=SelectionWriter() > > swriter.FileName=mFilename > > swriter.UpdatePipeline() > > > everything works fine. > > > > Utkarsh Ayachit schrieb: >> >> You can simply call UpdatePipeline() as follows: >> >> from paraview.simple import * >> .... >> UpdatePipeline(proxy=extractSelectionSource) >> >> This will update the extract selection filter explicitly. Look at >> help(UpdatePipeline) for details. >> >> Utkarsh >> >> >> On Sun, Apr 18, 2010 at 3:38 PM, Christian Werner >> <christian.wer...@rwth-aachen.de> wrote: >> >>> >>> Hi Utkarsh, >>> >>> these are great news. I tried the python trace but not in combination >>> with >>> the extraction (what I acutally do need anyway....) >>> >>> As you might remember I am working around the "lack" of possibilty to >>> select >>> whole objects (cells with same RegionID). With the given >>> SelectionQuerySource this workaround is complete. >>> >>> There remains one issue: At some point I call an ExtractSelection() in >>> Python that is followed by a call to a vtk-Plugin (which writes the point >>> data of the selected points to disk). The resulting file is empty, >>> because >>> the Extraction takes a few seconds and obviously the plugin has no valid >>> input when being executed. Paraview also crashes as a consequence. When I >>> am >>> doing this manually (trigger ExtractSelection, wait until it's done, call >>> the vtk Plugin to write the point data) everything works fine. I could >>> just >>> go ahead and do a dull time.sleep(3) between the extraction and the call >>> to >>> the plugin, but this certainly isn't good programming style. >>> >>> What can I do instead? >>> >>> >>> Best regards, >>> Christian >>> >>> >>> Utkarsh Ayachit wrote: >>> >>>> >>>> Yes, you can use the "SelectionQuerySource" to construct your query as >>>> follows: >>>> >>>> selection_source_540 = SelectionQuerySource( InsideOut=0, >>>> ArrayName='', HierarchicalLevel=-1, ProcessID=-1, ContainingCells=0, >>>> DoubleValues=None, HierarchicalIndex=-1, FieldType='CELL', >>>> ArrayComponent=0, Operator='IS_ONE_OF', TermMode='ID', >>>> CompositeIndex=-1, IdTypeValues=0 ) >>>> >>>> You can use the python trace recorder functionality to determine how >>>> to create the query. You will, however have to "Extract Selection" >>>> from the query (and hit apply) before the selection_source object will >>>> appear in the trace. >>>> >>>> Utkarsh >>>> >>>> >>>> On Sat, Apr 17, 2010 at 9:32 AM, Christian Werner >>>> <christian.wer...@rwth-aachen.de> wrote: >>>> >>>> >>>>> >>>>> Hello! >>>>> >>>>> Is there any chance that the new Edit->Find Data functionality is >>>>> available >>>>> in Python-Scripting? >>>>> >>>>> >>>>> Best regards, >>>>> Christian >>>>> _______________________________________________ >>>>> Powered by www.kitware.com >>>>> >>>>> Visit other Kitware open-source projects at >>>>> http://www.kitware.com/opensource/opensource.html >>>>> >>>>> Please keep messages on-topic and check the ParaView Wiki at: >>>>> http://paraview.org/Wiki/ParaView >>>>> >>>>> Follow this link to subscribe/unsubscribe: >>>>> http://www.paraview.org/mailman/listinfo/paraview >>>>> >>>>> >>>>> >>> >>> > > _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
