Hi,As requested I attached with that email a list of 8 segfaulting polyhedrons. It happens with a centre of (0,0,0) and an oZ normal.
Regards, Pierre On 01/04/2017 10:11 AM, Mathieu Westphal wrote:
HiIt may be a different issue than the one i'm fixing. If you can share the segfaulting polyhedron, please do so i can take a look when i get back on this issue ( which my not be soon, feel free to find other solutions)Regards, Mathieu WestphalOn Tue, Jan 3, 2017 at 10:46 PM, Pierre Van Hauwaert <pie...@rtech-engineering.nl <mailto:pie...@rtech-engineering.nl>> wrote:Hi Mathieu and Thomas, Thank you for the suggestions. 1) I tried the tetrahedralize filter on my data but I did not get the results I was expecting. I have a polyhedron which is not convex (https://postimg.org/image/9s3egl8rz/ <https://postimg.org/image/9s3egl8rz/>) and the filter fill the gap as you can see here (https://postimg.org/image/5u1nt6d2h/ <https://postimg.org/image/5u1nt6d2h/>) and it is not what I was expecting. Indeed, the initial purpose of the slice was to visualize the hole. 2) I tried this fix: https://gitlab.kitware.com/vtk/vtk/merge_requests/2088 <https://gitlab.kitware.com/vtk/vtk/merge_requests/2088> only modifying the 2 files (*Common/DataModel/vtkPolyhedron.cxx* <https://gitlab.kitware.com/vtk/vtk/merge_requests/2088/diffs#15fe983b62f8470f9429f461e8b010d03b476c0c> *Common/Core/vtkSetGet.h) * <https://gitlab.kitware.com/vtk/vtk/merge_requests/2088/diffs#6df1a223bec663530f25d2d214b6b11611fb9cdf> And compile VTK alone. I used a python script (activating the python VTK wrapping) to do the test with the vtkCutter function but I ended having the same exact issue (segfault, no error message) with only the polyhedron that have more than 1024 faces. I am not sure I should get the same results if I manage to compile paraview. When I will manage I will get back to you. Thanks, Pierre On 03-01-17 16:51, Mathieu Westphal wrote:Hi Indeed, incorrect copy paste. thanks for pointing it out. Mathieu Westphal On Tue, Jan 3, 2017 at 4:46 PM, T.J. Corona <tj.cor...@kitware.com <mailto:tj.cor...@kitware.com>> wrote: Hi Mathieu and Pierre, Perhaps you meant to point to this “work in progress” branch? https://gitlab.kitware.com/vtk/vtk/merge_requests/2088 <https://gitlab.kitware.com/vtk/vtk/merge_requests/2088> Sincerely, T.J. Thomas J. Corona, Ph.D. Kitware, Inc. R&D Engineer 21 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-881-4443 <tel:%28518%29%20881-4443>On Jan 3, 2017, at 10:18 AM, Mathieu Westphal <mathieu.westp...@kitware.com <mailto:mathieu.westp...@kitware.com>> wrote: Hello for your information there is a bug in the slicing of vtkPolyHedron that can cause a segfault. It looks very much like your error. It has yet to be corrected. https://gitlab.kitware.com/vtk/vtk/issues/16877 <https://gitlab.kitware.com/vtk/vtk/issues/16877> You can already test this "work in progress" branch to see if this fixes your issue : https://gitlab.kitware.com/vtk/vtk/merge_requests/2304 <https://gitlab.kitware.com/vtk/vtk/merge_requests/2304> You could of course modify your data to tetrahedron with tetrahedralize filter. Regards, Mathieu Westphal On Tue, Jan 3, 2017 at 4:10 PM, Pierre Van Hauwaert <pie...@rtech-engineering.nl <mailto:pie...@rtech-engineering.nl>> wrote: Hi, I am using paraview to visualise my data. I generate my data using a combination of the 2 following types (http://www.vtk.org/doc/nightly/html/vtkCellType_8h_source.html) VTK_VOXEL <http://www.vtk.org/doc/nightly/html/vtkCellType_8h.html#ab1d6fd1f3177b8a2a32bb018807151f8a06a70888292dc4309e42404af594fbb4>= 11 VTK_POLYHEDRON = 42 I can visualize that data with parview without a problem. But, because I ended up having a segfault without any error message when slicing (Z=0) the data. I decomposed my data in separate files for each VTK_POLYHEDRON in order to investigate the problem. I found out that only the polyhedrons with the largest size were having the problem. The limit is somewhere between the 2 files: - poly-F1000-2395.vtu : working: 466 points, 928 faces - poly-F1000-2987.vtu : segfault when slicing: 546 points, 1088 faces So my guess is that there is a limit for the number of points or the number of faces that can have the polyhedron (1024 ?) if I want to be able to use the slice function. My questions are : 1) Is there actually a limitation in Paraview (VTK?) regarding the number of faces or the number of the point that the slice function can handle for a polyhedron ? 2) If there is this limitation, is there an option to remove it in Paraview ? (specific version, compilation option, etc) 3) If there is this limitation, is there any work around that exist so I am able to slice my data ? For example a different format ? I attached the data to be able to back up my statement: poly-F1000-*.vtu : files describing a polyhedron each: poly-F1000.pvd : load all those files Biggest file for which the slicing works (size, name): 34K poly-F1000-2395.vtu The 8 biggest files triggering the crash when doing a slice: (size, name) 38K poly-F1000-2987.vtu 39K poly-F1000-2983.vtu 39K poly-F1000-2935.vtu 39K poly-F1000-2988.vtu 39K poly-F1000-2931.vtu 40K poly-F1000-2937.vtu 40K poly-F1000-2981.vtu 40K poly-F1000-2930.vtu fail.pvd: load those 8 files the other files can be sliced without any issues Thanks, Pierre-- R.Tech Engineering B.V.Eekholt 42 - 1112 XH Diemen - the Netherlands Tel: +31 (0) 2 04 95 02 22 _______________________________________________ Powered by www.kitware.com <http://www.kitware.com/> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html <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 <http://public.kitware.com/mailman/listinfo/paraview> _______________________________________________ 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 <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 <http://public.kitware.com/mailman/listinfo/paraview>
segfaultingPolyhedrons.tgz
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