remesh triangle mesh to improve the quality of original mesh

[JianqiangDing]

Is your feature request related to a problem? Please describe. Yes, lots of input triangle mesh in bad quality

Describe the solution you'd like some APIs like pygalmesh.remesh_surface do

Describe alternatives you've considered do not know

Additional context some useful links you may need.

link 0 link 1

I do not know if I miss something(already check the code and issues), I just can not find open3d has such remeshing like API exist

[dperyel]

Suggestions for the scope:

• resolve non-manifold vertices and edges
• fill the holes
• improving topology by flipping illegal edges, collapsing small edges
• resolve triangles with zero area
• [optional] subdividing triangles, flipping illegal edges, and then collapsing small edges make a significant improvement in topology

Well, perhaps some additional steps should be taken. The Euler characteristic should be tested after re-meshing.

[JianqiangDing]

@dperyel thanks for your reply, my original thinking about remeshing is pretty like my comment as in https://github.com/pmp-library/pmp-library/issues/92#issue-1081799030

all of these remeshing algorithms follow a similar pipeline, someone from Open3D team may use them as references.