Function extract_intersecting_faces

scripts/extract_self_intersecting_faces.py:11–24

(mesh, selection)

import pymesh

def extract_intersecting_faces(mesh, selection):
    face_pairs = pymesh.detect_self_intersection(mesh);
    selected_faces = np.zeros(mesh.num_faces, dtype=bool);

    if selection is not None:
        selected_pairs = np.any(face_pairs == selection, axis=1);
        face_pairs = face_pairs[selected_pairs];

    selected_faces[face_pairs[:,0]] = True;
    selected_faces[face_pairs[:,1]] = True;
    faces = mesh.faces[selected_faces];
    intersecting_mesh = pymesh.form_mesh(mesh.vertices, faces);
    intersecting_mesh, __ = pymesh.remove_isolated_vertices(intersecting_mesh);
    return intersecting_mesh;

def parse_args():
    parser = argparse.ArgumentParser(description=__doc__);