Utkarsh, clear up a doubt for me please: Does it mean that if I want to use vtkImageConstantPad filter in ParaView, I only have two solutions that are 1) to write vtkPVImageConstantPad that uses the extent translator correctly, 2) to submit a patch to the VTK developers that modifies the current implementation
Thanks again! Jerome 2010/6/3 Jérôme <[email protected]>: > Fine! > Thanks a lot for your explanations. Then I will work on that. > Do you mind if I go on this thread for eventual misunderstandings? > > Jerome > > 2010/6/3 Utkarsh Ayachit <[email protected]>: >> Jerome, >> >> The VTK class has the trick to override the extent-translator which is >> what does-what-it-does in ParaView. ParaView by default overrides the >> extent translator with vtkPVExtentTranslator which uses the original >> data exetent information for partitioning and that's what messes such >> fancy pipelines up. The filer can explicitly override ParaView's >> behavior. So to answer, no, there's nothing on ParaView side that >> needs to be added to support changing of extents it is in the >> pipeline. >> >> Utkarsh >> >> On Thu, Jun 3, 2010 at 2:24 PM, Jérôme <[email protected]> wrote: >>> Hi Utkarsh, >>> >>> Thanks for your tips. I will take a look around this class. Though I have >>> a question: This is a VTK class, and I don't have problem in stand-alone >>> VTK applications. If I have to change something in VTK classes, it means >>> that I will have duplicated filters, the native VTK ones and the modified >>> of mine... Don't you think there something on ParaView-side to do? >>> >>> Thanks again and best regards, >>> Jerome >>> >>> 2010/6/3 Utkarsh Ayachit <[email protected]>: >>>> Jerome, >>>> >>>> You may want to look at VTK/Hybrid/vtkImageDataLIC2D.cxx to see how it >>>> plays tricks with the extent-translator to generate images with larger >>>> extent when magnification > 1. >>>> >>>> Utkarsh >>>> >>>> On Thu, Jun 3, 2010 at 5:02 AM, Jérôme <[email protected]> wrote: >>>>> Finally, I found a bug opened 6 months ago: >>>>> http://www.paraview.org/Bug/view.php?id=10125 >>>>> I added a note. I hope that it will interest some PV gurus >>>>> >>>>> Jerome >>>>> >>>>> 2010/6/2 Jérôme <[email protected]>: >>>>>> Dear all, >>>>>> >>>>>> I fill very surprised that *nobody* has to resample some data inside >>>>>> ParaView. Several threads deal with enabling some VTK filters in >>>>>> ParaView that actually change the extent of the input image (just as >>>>>> vtkImageResample), but when the output extent is higher that input, >>>>>> there is a strange behaviour. Sorry for being lazy: the problem was >>>>>> described in the following threads. >>>>>> http://www.paraview.org/pipermail/paraview/2010-May/017309.html >>>>>> http://www.paraview.org/pipermail/paraview/2009-October/014306.html >>>>>> http://www.paraview.org/pipermail/paraview/2009-April/011945.html >>>>>> >>>>>> Please, tell me if I am doing something wrong in the XML, if I am >>>>>> stupid, if this is a known limitation of ParaView, if I am not sending >>>>>> to the right mailing list, if [put your own proposition]. >>>>>> >>>>>> Thanks for all, and best regards. >>>>>> Jerome >>>>>> >>>>>> PS: you can find the incriminated XML files here: >>>>>> http://github.com/jeromevelut/Peavip . Beware of the Spline Filter, >>>>>> another pending request has been sent. >>>>>> >>>>> _______________________________________________ >>>>> 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
