pyblenderSDIC.meshes.TriangleMesh3D.triangle_normals#
- property TriangleMesh3D.triangle_normals: ndarray | None#
Get the normals of the triangles in the mesh.
The normals are computed as the cross product of the edges of each triangle. The normals are represented as a NumPy array of shape (M, 3), where M is the number of triangles.
See also
The method
compute_triangle_normalscan be used to compute the normals if they are not already computed.Warning
This property uses
numpy.asarrayon the internaltriangle_normalsarray. As a result, any modification to the returned or setted array directly affects the mesh data. To avoid unintentional updates, assign a copy instead.- Returns:
A NumPy array of shape (M, 3) representing the normals of the triangles in the mesh. If not computed, returns None.
- Return type:
Optional[numpy.ndarray]