Method compute_face_center

tests/tools/MeshUtils/SubMeshTest.h:13–23

class SubMeshTest : public TestBase {
    protected:
        VectorF compute_face_center(MeshPtr mesh, size_t i) {
            VectorI face = mesh->get_face(i);
            VectorF center = VectorF::Zero(mesh->get_dim());

            const size_t num_vertex_per_face = face.size();
            for (size_t i=0; i < num_vertex_per_face; i++) {
                center += mesh->get_vertex(face[i]);
            }
            center /= Float(num_vertex_per_face);
            return center;
        }

        VectorF compute_face_center(
                const MatrixFr& vertices,