def test_circular_arc():
pointa = [-1, 0, 0]
pointb = [0, 1, 0]
center = [0, 0, 0]
resolution = 100
mesh = pyvista.CircularArc(pointa, pointb, center, resolution)
assert mesh.n_points
assert mesh.n_cells
mesh = pyvista.CircularArc([-1, 0, 0], [0, 0, 1], [0, 0, 0], normal=[0, 0, 1],
polar=[1, 0, 1], negative=True, angle=180)
assert mesh.n_points
assert mesh.n_cells
def test_circular_arc():
pointa = [-1, 0, 0]
pointb = [0, 1, 0]
center = [0, 0, 0]
resolution = 100
mesh = pyvista.CircularArc(pointa, pointb, center, resolution)
assert mesh.n_points == resolution + 1
assert mesh.n_cells == 1
distance = np.arange(0.0, 1.0 + 0.01, 0.01) * np.pi / 2.0
assert np.allclose(mesh['Distance'], distance)
# pointa and pointb are not equidistant from center
with pytest.raises(ValueError):
mesh = pyvista.CircularArc([-1, 0, 0], [-0.99, 0.001, 0], [0, 0, 0],
100)
def test_extrude():
arc = pyvista.CircularArc([-1, 0, 0], [1, 0, 0], [0, 0, 0])
poly = arc.extrude([0, 0, 1])
assert poly.n_points
assert poly.n_cells
n_points_old = arc.n_points
arc.extrude([0, 0, 1], inplace=True)
assert arc.n_points != n_points_old
# Torus # +++++ torus = pv.ParametricTorus() torus.plot(color="tan") ############################################################################### # Circular Arc # ++++++++++++ pointa = [-1, 0, 0] pointb = [0, 1, 0] center = [0, 0, 0] resolution = 100 arc = pv.CircularArc(pointa, pointb, center, resolution) pl = pv.Plotter() pl.add_mesh(arc, color='k', line_width=4) pl.show_bounds() pl.view_xy() pl.show() ############################################################################### # Extruded Half Arc # +++++++++++++++++ pointa = [-1, 0, 0] pointb = [1, 0, 0] center = [0, 0, 0]