A python wrapper around a subset of the ncollide rust library
Project description
========= ncollpyde
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A python wrapper around a subset of the ncollide rust library
- Free software: MIT License
- Documentation: https://ncollpyde.readthedocs.io.
Features
- Checking whether points are inside a volume defined by a triangular mesh
Usage
.. code-block:: python
# get an array of vertices and triangles which refer to those points
import meshio
mesh = meshio.read("tests/teapot.stl")
vertices = mesh.points
triangles = mesh.cells["triangle"]
# use this library
from ncollpyde import Volume
volume = Volume(vertices, triangles)
Containment checks:
.. code-block:: python
# individual points (as 3-length array-likes) can be checked with `in`
assert [-2.3051376, -4.1556454, 1.9047838] in volume
assert [-0.35222054, -0.513299, 7.6191354] not in volume
# many points (as an Nx3 array-like) can be checked with the `contains` method
bools = volume.contains(np.array([
[-2.3051376, -4.1556454, 1.9047838],
[-0.35222054, -0.513299, 7.6191354],
]))
assert np.array_equal(bools, [True, False])
# checks can be parallelised
volume.contains(np.random.random((1000, 3)), threads=4)
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