Convex or concave? If concave you need to triangle filter first. More generally, if you have unknown polygons that could be convex, you need to triangle filter first. Just guessing that is the issue.
Ken On Sun, Feb 19, 2017 at 11:26 AM, Martin Rose <[email protected]> wrote: > Greetings, > > I have generated a simple vtk file that contains a single polygon. The > file is shown below. > > # vtk DataFile Version 2.0 > Output > ASCII > DATASET UNSTRUCTURED_GRID > POINTS 6 float > 0.0048265 0.00753943 0 > 0.0048265 0.00752686 0 > 0.00485421 0.00752571 0 > 0.00485266 0.00750789 0 > 0.00485804 0.00750789 0 > 0.00485804 0.00753943 0 > CELLS 1 7 > 6 0 1 2 3 4 5 > CELL_TYPES 1 > 7 > #end of file > > > After loading the file in paraview, the surface of the polygon is not > displayed correctly. It seems that an additional triangle is displayed. > However, the wireframe is displayed correctly. I have checked the order of > points and confirmed that the order is correct. I also multiplied the > coordinates by 100 but the problem persists. > > If I add the first point of the polygon again, the surface is displayed > correctly. The modified lines read: > CELLS 1 8 > 7 0 1 2 3 4 5 0 > > Unfortunately, that fix does not work for other polygons that show the > same problem. > Is there something wrong with my vtk file? > > Greetings, > Martin > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at http://www.kitware.com/opensou > rce/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 > -- Ken Martin PhD Chairman & CFO Kitware Inc. 28 Corporate Drive Clifton Park NY 12065 518 371 3971 This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message. Thank you.
_______________________________________________ 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
