Hi,
VTK newcomer here. I have a very straightforward problem and was wondering whether someone can give me an example on how to solve it or perhaps tell me of a builtin VTK function that might help. I have a set of connected lines in 3D which form a closed loop/boundary curve. I would like to construct a surface from this loop. Sorf of like Delaunay3D, except the curve might be concave, whereas Delaunay3D (as far as I know) only generates convex surfaces. (I have to create caps for a set of cut tubes where the tubes might be irregularly cut at their ends.) What approach could I use to generate such surfaces? Thanks and best regards, Rok |
http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ContoursToSurface
On Mon, Sep 19, 2016 at 2:10 PM, oblakr <[hidden email]> wrote: > Hi, > VTK newcomer here. > > I have a very straightforward problem and was wondering whether someone can > give me an example on how to solve it or perhaps tell me of a builtin VTK > function that might help. > > I have a set of connected lines in 3D which form a closed loop/boundary > curve. I would like to construct a surface from this loop. Sorf of like > Delaunay3D, except the curve might be concave, whereas Delaunay3D (as far as > I know) only generates convex surfaces. > > (I have to create caps for a set of cut tubes where the tubes might be > irregularly cut at their ends.) > > What approach could I use to generate such surfaces? > > Thanks and best regards, > Rok > > > > -- > View this message in context: http://vtk.1045678.n5.nabble.com/Constructing-a-surface-from-a-boundary-curve-tp5740429.html > Sent from the VTK - Users mailing list archive at Nabble.com. > _______________________________________________ > 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 VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ > > Search the list archives at: http://markmail.org/search/?q=vtkusers > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/vtkusers -- Unpaid intern in BillsBasement at noware dot com _______________________________________________ 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 VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ Search the list archives at: http://markmail.org/search/?q=vtkusers Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/vtkusers |
Hi,
Thanks for the link, however this is not completely optimal for my case: - the input data for my case is not a contour, since the points do not necessarily lie on the same plane - vtkVoxelContourFilter expects coordinates to be integer values, and when I try the example the resulting surface does not completely "touch" the original contours - as if its outline were somewhat smoothed. I need the algorithm to produce a surface that exactly matches the input outline. Is there a name for a generic algorithm that produces a surface from a given 3D boundary (nonplanar)? Thanks and best regards, Rok |
I did a google search for
non planar contour surface construction and found nothing that processed non-planar contours On Sat, Jul 1, 2017 at 11:07 AM, oblakr <[hidden email]> wrote: > Hi, > Thanks for the link, however this is not completely optimal for my case: > - the input data for my case is not a contour, since the points do not > necessarily lie on the same plane > - vtkVoxelContourFilter expects coordinates to be integer values, and when I > try the example the resulting surface does not completely "touch" the > original contours - as if its outline were somewhat smoothed. I need the > algorithm to produce a surface that exactly matches the input outline. > > Is there a name for a generic algorithm that produces a surface from a given > 3D boundary (nonplanar)? > > Thanks and best regards, > Rok > > > > -- > View this message in context: http://vtk.1045678.n5.nabble.com/Constructing-a-surface-from-a-boundary-curve-tp5740429p5743846.html > Sent from the VTK - Users mailing list archive at Nabble.com. > _______________________________________________ > 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 VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ > > Search the list archives at: http://markmail.org/search/?q=vtkusers > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/vtkusers -- Unpaid intern in BillsBasement at noware dot com _______________________________________________ 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 VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ Search the list archives at: http://markmail.org/search/?q=vtkusers Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/vtkusers |
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