Questions about computational-geometry
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Creating first triangle in DeWall Algorithm (Delaunay Triangulation)
I am trying to understand a particular approach of the DeWall algorithm to perform a 2D/3D delaunay triangulation/tetrahedralization (DT). I am especially interested in the 3D case. Where other divide...
christianl
Votes: 0
Answers: 0
PyTorch/TensorFlow calculation of surface normal of a surface point cloud
Say we have a point cloud of a surface (np.array of shape=(N, 3)) like the below image, on which we want to define a trajectory.
So far using scipy.interpolate.griddata I can project the 2D defined t...
azerila
Votes: 0
Answers: 0
Most efficient way to calculate point wise surface normal from a numpy grid
say we have a 2D grid that is projected on a 3D surface, resulting in a 3D numpy array, like the below image. What is the most efficient way to calculate a surface normal for each point of this grid?
...
azerila
Votes: 0
Answers: 2
Simplex with smallest possible total edge length in set of points
My question is similar to this one, however there are a few key differences
Given a set X of points in d dimensions and a query point q, my goal is to find the simplex span by d+1 points in X that
ha...
user134341543
Votes: 0
Answers: 1