[vtkusers] vtkBooleanOperationPolyDataFilter - final result is not manifold

[TJ Corona]

Hi Maximilian,

I have just recently worked on making the output from vtkBooleanOperationPolyDataFilter more robust to numerical errors implicit in the Delaunay2D algorithm. Would you mind trying this branch <https://gitlab.kitware.com/vtk/vtk/merge_requests/3273> and seeing if it helps?

Sincerely,
T.J.

Thomas J. Corona, Ph.D.
Kitware, Inc.
Senior R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4443

> On Sep 18, 2017, at 5:08 AM, Maximilian Weiherer <weiherer.maximilian at gmx.de> wrote:
> 
> Hi everyone,
>  
> I'm struggling with the vtkBooleanOperationPolyDataFilter. First, I'm computing the difference D between two vtkPolyData objects, say A and B (this is D := {A\B}). After that, I want to append the resulting difference D to B, i.e. make the union of these two meshes. Therefore, I'm using the vtkAppendPolyData filter. However, the final result is not manifold (which is necessary in order to print the mesh). I also tried the vtkBooleanOperationPolyDataFilter with the union operation but the problem still remains - the final result is not manifold and therefore not printable. How can I append these two meshes so that these are manifold and thus watertight (and printable)?
> Any help would be appreciated. Thanks!
> 
> Best regards
> Maximilian
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