[vtkusers] Remeshing using Octree Filter

[Bill Lorensen]

Here are other ways to remesh.

Look at these examples:

https://lorensen.github.io/VTKExamples/site/Cxx/Points/ExtractSurface/
https://lorensen.github.io/VTKExamples/site/Cxx/Points/PowercrustExtractSurface/
https://lorensen.github.io/VTKExamples/site/Cxx/Points/PoissonExtractSurface/
and a compariison
https://lorensen.github.io/VTKExamples/site/Cxx/Points/CompareExtractSurface/


On Thu, Sep 21, 2017 at 9:01 AM, vincentrivola
<vincentrivola at hotmail.com> wrote:
> Hi again,
>
> I don't have much time for the wiki right now since it is a very busy
> period.
> But basically here is the pipeline (as a side note I use the java wrapper
> for all these applications):
> - create an octree mesh around your surface. For this I use my own octree
> generator not vtkHyperOctree. If someone know how to get it directly in vtk
> I'm interested.
>
> - once I get my octree grid as a vtkUnstructuredGrid I loop over all the
> points of the mesh and use a vtkImplicitPolyDataDistance filter initialized
> with my original surface to get the distance between each point of the
> unstructured grid and the vtkPolyData.
>
> - then I can use this distance in a vtkContourFilter to get the iso-surface
> of distance=0.
>
> - eventually use a vtkSmoothPolyDataFilter on the output of vtkContourFilter
> to smooth a bit the results.
>
> That's it! pretty simple actually.
>
>
>
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