NumPy
Introduction
This page aims to document how to use NumPy with FreeCAD.
numpy comes installed as a dependency of FreeCAD, therefore you can import numpy as np without having to first install it like in normal Python project environments.
Convert Vector list between FreeCAD Python and NumPy
From Python to NumPy
import FreeCAD as App
import numpy as np
vector_list = [App.Vector(1, 0, 0), App.Vector(1, 2, 3), App.Vector(0, 3, 0)]
numpy_array = np.asarray(vector_list)
print(numpy_array)
Output is:
[[ 1. 0. 0.]
[ 1. 2. 3.]
[ 0. 3. 0.]]
From NumPy to Python
import FreeCAD as App
import numpy as np
cad_list = [App.Vector(itm) for itm in numpy_array]
print(cad_list)
Output is:
[Vector (1.0, 0.0, 0.0), Vector (1.0, 2.0, 3.0), Vector (0.0, 3.0, 0.0)]
FreeCAD projects using NumPy
- https://github.com/looooo/freecad.gears/blob/master/setup.py#L13
- https://github.com/booya-at/OpenGlider/blob/develop/setup.py#L77