Method extract_faces

tests/TestBase.h:119–125

        }

        MatrixIr extract_faces(MeshPtr mesh) {
            MatrixIr out_faces(mesh->get_num_faces(), mesh->get_vertex_per_face());
            const VectorI& faces = mesh->get_faces();
            std::copy(faces.data(), faces.data() + faces.size(),
                    out_faces.data());
            return out_faces;
        }

    protected:
        /**