class TestCenterOfFace():
v_cube, f_cube = wavefront.read_obj('./integration/cube.obj')
cof = wavefront.center_of_face(v_cube, f_cube)
def test_size(self):
np.testing.assert_allclose(self.cof.shape, self.f_cube.shape)
def test_normal_face_plot():
"""Plot the normals to the faces on a mesh and view in Mayavi
"""
v, f = wavefront.read_obj('./integration/cube.obj')
normal_face = wavefront.normal_face(v, f)
cof = wavefront.center_of_face(v, f)
mfig = graphics.mayavi_figure()
_ = graphics.mayavi_addMesh(mfig, v, f)
for p1, u in zip(cof, normal_face):
graphics.mayavi_addPoint(mfig, p1, radius=0.1, color=(1, 0, 0))
graphics.mayavi_addLine(mfig, p1, u + p1)
graphics.mayavi_addTitle(mfig,
'Normals to each face',
color=(0, 0, 0),
size=0.5)
def test_center_face_function(self):
cof = wavefront.center_of_face(self.v, self.f)
np.testing.assert_allclose(cof, self.center_face)