[vtkusers] Triangulate surface points?

[Philip Fackler]

Cory,
Thanks for the response. As far as I can tell, surface reconstruction in
general (including these two in particular) doesn't use the points given as
vertices for the resulting surface mesh. I want something to simply
triangulate the points I already have on the surface.
--Philip

On Thu, Mar 24, 2016 at 2:29 PM Cory Quammen <cory.quammen at kitware.com>
wrote:

> Philip,
>
> Please take a look at
>
>
> http://www.vtk.org/doc/nightly/html/classvtkSurfaceReconstructionFilter.html
>
> and
>
> http://www.vtkjournal.org/browse/publication/718
>
> I don't have direct experience with these classes, but they may have what
> you need.
>
> HTH,
> Cory
>
> On Thu, Mar 24, 2016 at 2:24 PM, Philip Fackler <philip.fackler at gmail.com>
> wrote:
>
>> If someone could even definitively tell me "no, you can't do this" that
>> would be helpful.
>>
>> Thanks,
>> Philip Fackler
>>
>> On Wed, Mar 16, 2016 at 6:24 PM Philip Fackler <philip.fackler at gmail.com>
>> wrote:
>>
>>> Is there a way to triangulate a set of surface points using vtk? I've
>>> looked around and everything I've found (vtk, cgal, pcl) only do a surface
>>> reconstruction which ends up generating its own points to triangulate. I
>>> want to actually use the points I have as the vertices of the
>>> triangulation. Along with the point locations, I have a lot of information
>>> available in my code that I could provide:
>>>
>>> Normal vector at each point
>>> Bounding segmented curve(s) (i.e., lists of edge cells indexing the list
>>> of surface points)
>>> A polydata representation of the surface (Note that the points I want to
>>> triangulate are distinct from the points involved in this)
>>>
>>> The only vtk utility that seems to come close to this is vtkDelaunay2D,
>>> but it's only useful if all the points can be mapped to a 2D plane. This
>>> isn't possible in general without a parametric surface, which is one bit of
>>> information I don't have.
>>>
>>> Thanks in advance for the help.
>>>
>>
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>
>
> --
> Cory Quammen
> R&D Engineer
> Kitware, Inc.
>
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