[Insight-users] [vtkusers] hexagonal mesh?

[Dženan Zukić]

Yes, hexagonal mesh is not possible with closed polyhedron of genus 0
(something sphere-like).
http://www.cs.mtu.edu/~shene/COURSES/cs3621/SLIDES/Mesh.pdf

On Sat, Jun 30, 2012 at 9:24 AM, Alexandre GOUAILLARD <agouaillard at gmail.com
> wrote:

> Just a note,
>
> a simplex mesh is NOT an hexagonal mesh. Only if the original mesh is
> regular, has no border and has the correct genus, have all the points
> 6 edges, in which case the dual simplex mesh is hexagonal. In all the
> other case, you will have some cells with 5, 7 or an arbitrary number
> of faces.
>
> alex.
>
> On Fri, Jun 29, 2012 at 6:13 PM, Dženan Zukić <dzenanz at gmail.com> wrote:
> > I would recommend to use this for reading files:
> > http://www.insight-journal.org/browse/publication/761
> > and then simply apply triangular->simplex filter.
> > Since simplex mesh inherits itk::mesh, the above I/O framework should
> work
> > for writing the resulting simplex mesh.
> >
> > This approach will most likely not be very fast, but if you need to run
> it
> > only occasionally, it does not matter.
> >
> > Some examples of dealing with meshes in ITK:
> > http://www.itk.org/Wiki/ITK/Examples#Meshes
> >
> > On Fri, Jun 29, 2012 at 6:02 PM, Siddharth Srivastava <siddys at gmail.com>
> > wrote:
> >>
> >> Hi Dzenan,
> >>       Looks like this may work for me. Any examples on its usage that I
> >> can follow?
> >> Thanks,
> >> Sid.
> >>
> >>
> >> On Fri, Jun 29, 2012 at 7:46 AM, Dženan Zukić <dzenanz at gmail.com>
> wrote:
> >>>
> >>> Maybe what you need is this:
> >>>
> >>>
> http://www.itk.org/Doxygen/html/classitk_1_1TriangleMeshToSimplexMeshFilter.html
> >>> But that is part of ITK library, not VTK.
> >>>
> >>> On Thu, Jun 28, 2012 at 6:34 PM, Siddharth Srivastava <
> siddys at gmail.com>
> >>> wrote:
> >>>>
> >>>> Hi all,
> >>>>      Since there are a number of graphics/visualization experts on
> this
> >>>> group, I think
> >>>> this is the best forum available to me to request for the following:
> >>>>
> >>>> I would like a have a program or algorithm to convert a triangular
> mesh
> >>>> to one with hexagonal
> >>>> elements. My triangular mesh is generated in Matlab, so I have the
> >>>> [face,vertex] structure, along
> >>>> with the data. Initially, my primary purpose is visualization of the
> >>>> mesh.
> >>>> Is there something like this available? Does VTK have a functionality
> to
> >>>> generate hexagonal
> >>>> tessellations? I have been searching the net for similar
> >>>> transformation, but I have not been spectacularly successful in this
> so
> >>>> far.
> >>>>
> >>>> Thanks for all the help,
> >>>> Sid.
> >>>>
> >>>> _______________________________________________
> >>>> 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
> >>>>
> >>>> Follow this link to subscribe/unsubscribe:
> >>>> http://www.vtk.org/mailman/listinfo/vtkusers
> >>>>
> >>>
> >>
> >
> >
> > _____________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Kitware offers ITK Training Courses, for more information visit:
> > http://www.kitware.com/products/protraining.php
> >
> > Please keep messages on-topic and check the ITK FAQ at:
> > http://www.itk.org/Wiki/ITK_FAQ
> >
> > Follow this link to subscribe/unsubscribe:
> > http://www.itk.org/mailman/listinfo/insight-users
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.itk.org/pipermail/insight-users/attachments/20120630/3f8eadb5/attachment.htm>