openalea.phenomenal.mesh.routines.normals
- openalea.phenomenal.mesh.routines.normals(vertices, faces)[source]
Compute normal of each faces
- Parameters:
vertices ([(x, y, z), ...]) – Spatial coordinates for unique mesh vertices.
faces ([(V1, V2, V3), ...]) – Define triangular faces via referencing vertex indices from vertices. This algorithm specifically outputs triangles, so each face has exactly three indices
- Returns:
out – List of vector direction of the normal in the same order that faces
- Return type:
[(x, y, z), …]