A python library to compute the planar cross-section of a 3D mesh.
Given a 3D mesh and a cut plane, this computes a (set of) polyline(s) that results from cutting the mesh with the plane.
Requires python and numpy. Mayavi is used for visualisation in the examples.
Run the examples with
python3 examples/0_cross_section.py
Given
In [17]: verts
Out[17]:
array([[ 1.6315 , -0.1505 , 0. ],
[ 1.6376 , -0.1516 , 0. ],
[ 1.6493 , -0.1518 , 0. ],
...,
[ 1.62088 , -0.0263264, -0.0716966],
[ 1.63381 , -0.0500889, 0.0726852],
[ 1.63381 , -0.0500889, -0.0726852]])
In [20]: faces
Out[20]:
array([[1530, 1337, 1338],
[4549, 4725, 4548],
[2940, 2950, 3787],
...,
[3107, 3438, 3439],
[2263, 2281, 2262],
[3116, 3119, 4171]])
In [21]: meshcut.cross_section(verts, faces, plane_orig=(1.2, -0.125, 0),
....: plane_normal=(1, 0, 0))
Out[21]:
[array([[ 1.20000000e+00, -1.28957692e-01, -1.02180769e-01],
[ 1.20000000e+00, -1.37182869e-01, -8.06541833e-02],
[ 1.20000000e+00, -1.36863816e-01, -6.95125000e-02],
Thanks to @superzanti for the STL use case and the sphere model.
Julien Rebetez