[vtkusers] marching cubes: scalar values equal to isovalue

[Bill Lorensen]

Edges are generated on cell faces, triangles are not generated on cell
faces. So, you will have shared edges, but never shared faces.


On Tue, Mar 1, 2011 at 11:24 AM, Eduardo Suarez-Santana
<esuarez at itccanarias.org> wrote:
> Let's say I'm running marching cubes with isovalue equals one, and there
> is a cell with cero value in every vertex but in three of them in the
> same face, with value one again.
>
> As I understand, I would get just a triangle in that face for this cell,
> with vertices identical to the cell vertices. Then, in the adjacent
> cell, I would also get the same triangle for that face.
>
> So that, I get two identical triangles which enclose no volume at all.
>
> This is hapenning to me, and so that I get some ugly 'prickles' in my
> surface.
>
> Is there a way to avoid that?
>
> Thanks in advance,
> -Eduardo
>
> _______________________________________________
> 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
>