| 6 | |
| 7 | |
| 8 | def test_numpy_conversions(): |
| 9 | faces = np.ndarray( |
| 10 | shape=(2, 3), |
| 11 | dtype=np.int32, |
| 12 | buffer=np.array([[0, 1, 2], [2, 3, 0]], dtype=np.int32), |
| 13 | ) |
| 14 | |
| 15 | # mrmesh uses float32 for vertex coordinates |
| 16 | # however, you could also use float64 |
| 17 | verts = np.ndarray( |
| 18 | shape=(4, 3), |
| 19 | dtype=np.float32, |
| 20 | buffer=np.array( |
| 21 | [[0.0, 0.0, 0.0], [1.0, 0.0, 0.0], [1.0, 1.0, 0.0], [0.0, 1.0, 0.0]], |
| 22 | dtype=np.float32, |
| 23 | ), |
| 24 | ) |
| 25 | |
| 26 | mesh = mrmeshnumpy.meshFromFacesVerts(faces, verts) |
| 27 | |
| 28 | assert mesh.topology.getValidFaces().count() == 2 |
| 29 | |
| 30 | vertNorms = mrmesh.computePerVertNormals(mesh) |
| 31 | faceNorms = mrmesh.computePerFaceNormals(mesh) |
| 32 | |
| 33 | vertNormsNp = mrmeshnumpy.toNumpyArray(vertNorms) |
| 34 | faceNormsNp = mrmeshnumpy.toNumpyArray(faceNorms) |
| 35 | |
| 36 | vertNormsFromNp = mrmeshnumpy.fromNumpyArray(vertNormsNp) |
| 37 | |
| 38 | assert len(vertNormsFromNp) == len(vertNorms.vec) |
| 39 | assert vertNormsNp.shape[0] == len(vertNorms.vec) |
| 40 | assert faceNormsNp.shape[0] == len(faceNorms.vec) |