Berk, I generally want to add some new variables to the output – if I don’t DeepCopy, then these new variables get added to the input which violates the vtk rule that a filter can’t change the input.
This is the main reason that I advocate adding the capability for PointData and CellData to be partially DeepCopy (new variables added in Filter) and partially ShallowCopy (input variables just along for the ride). I suspect most filters are going to generate new variables, so DeepCopy seems to be appropriate. Please correct me if I misunderstand this. Dennis From: Berk Geveci [mailto:[email protected]] Sent: Tuesday, November 10, 2015 3:40 PM To: Dennis Conklin <[email protected]> Cc: Paraview ([email protected]) <[email protected]> Subject: [EXT] Re: [Paraview] Customize programmable filters: copy arrays Don't use DeepCopy() unless you intend to change the values of the output arrays. Use ShallowCopy() instead. You don't need CopyStructure() by the way. Alternatively, you can use PassData(). Something like this: output.GetPointData().PassData(inputs[0].GetPointData()) output.GeCellData().PassData(inputs[0].GetCellData()) Best, -berk On Tue, Nov 10, 2015 at 1:49 PM, Dennis Conklin <[email protected]<mailto:[email protected]>> wrote: Jean-Michel, I normally just add the following two statements within my Filter: output.CopyStructure(inputs[0].VTKObject) output.DeepCopy(inputs[0].VTKObject) Dennis _______________________________________________ Powered by www.kitware.com<http://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 Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/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 Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
