def test_spline_interpolated_profiles():
p1 = circle(12, radius=2, elevation=0, close=True)
p2 = circle(12, radius=3, elevation=2, close=True)
p3 = circle(12, radius=1, elevation=4, close=True)
p4 = circle(12, radius=2, elevation=6, close=True)
profiles = list(spline_interpolated_profiles([p1, p2, p3, p4], subdivide=4))
assert len(profiles) == 13 # 3*4 + 1
def test_from_profiles_splines():
p1 = circle(12, radius=2, elevation=0, close=True)
p2 = circle(12, radius=3, elevation=2, close=True)
p3 = circle(12, radius=1, elevation=4, close=True)
p4 = circle(12, radius=2, elevation=6, close=True)
mesh = from_profiles_spline([p1, p2, p3, p4], subdivide=4, caps=True)
assert len(mesh.vertices) == 156 # 12 (circle) * 13 (profiles)
assert len(mesh.faces) == 146 # 12 (circle) * 12 + 2
def polylines(filename):
with r12writer(filename) as r12:
r12.add_polyline_2d(circle(8), color=1, closed=False)
r12.add_polyline_2d(
translate(circle(8), vec=(3, 0)), color=3, closed=True
)
r12.add_polyline_2d(
[(0, 4), (4, 4, 1), (8, 4, 0, 0.2, 0.000001), (12, 4)],
format="xybse",
start_width=0.1,
end_width=0.1,
color=5,
)
print(f'saved as "{filename}".')
def test_ngons_to_triangles():
open_square = square()
r = list(ngon_to_triangles(open_square))
assert len(r) == 4
center = r[0][2]
assert center == (0.5, 0.5, 0)
closed_square = list(circle(4, elevation=2, close=True))
assert len(closed_square) == 5
r = list(ngon_to_triangles(closed_square))
assert len(r) == 4
center = r[0][2]
assert center.isclose((0, 0, 2))
# also subdivide triangles
r = list(ngon_to_triangles([(0, 0), (1, 0), (1, 1)]))
assert len(r) == 3
def test_close_circle():
assert len(list(circle(8, close=True))) == 9
assert len(list(close_polygon(circle(8, close=True)))) == 9
assert len(list(close_polygon(circle(8, close=False)))) == 9
def test_circle_closed():
c = list(circle(8, close=True))
assert len(c) == 9
def test_circle_open():
c = list(circle(8))
assert len(c) == 8
def test_subdivide_ngons():
hexagon = list(circle(6))
result = list(subdivide_ngons([hexagon]))
assert len(result) == 6
def test_rect_inside_circle(rect):
c = circle(16, 3)
result = clip_polygon_2d(c, rect, ccw_check=False)
assert len(result) == 4
for v in rect:
assert v in result
def test_rect_outside_circle(rect):
c = circle(16, 0.7)
result = clip_polygon_2d(c, rect, ccw_check=False)
assert len(result) == 16
for v in c:
assert v in result
def test_circle_inside_rect(rect):
c = Vec2.list(circle(16, 0.7))
result = clip_polygon_2d(rect, c, ccw_check=False)
assert len(result) == 16
for v in c:
assert v in result
def test_circle_outside_rect(rect):
c = circle(16, 3)
result = clip_polygon_2d(rect, c, ccw_check=False)
assert len(result) == 4
for v in rect:
assert v in result