def test_center01(self):
f = Facet([
R3(0.0, 0.0, 0.0),
R3(2.0, 0.0, 0.0),
R3(2.0, 2.0, 0.0),
R3(0.0, 2.0, 0.0)
])
assert f.center().approx((R3(1.0, 1.0, 0.0)))
def test_v_normal02(self):
f = Facet([
R3(0.0, 0.0, 0.0),
R3(2.0, 0.0, 0.0),
R3(2.0, 2.0, 0.0),
R3(0.0, 2.0, 0.0)
])
normals = [
R3(-1.0, 0.0, 0.0),
R3(0.0, -1.0, 0.0),
R3(1.0, 0.0, 0.0),
R3(0.0, 1.0, 0.0)
]
for t in zip(f.v_normals(), normals):
assert t[0].is_collinear(t[1])
def test_shadow_03(self):
s = Edge(R3(0.0, 0.0, -1.0), R3(1.0, 1.0, -1.0))
f = Facet([
R3(0.0, 0.0, 0.0),
R3(2.0, 0.0, 0.0),
R3(2.0, 2.0, 0.0),
R3(0.0, 2.0, 0.0)
])
s.shadow(f)
assert len(s.gaps) == 0
def test_shadow_02(self):
s = Edge(R3(0.0, 0.0, 1.0), R3(1.0, 1.0, 1.0))
f = Facet([
R3(0.0, 0.0, 0.0),
R3(2.0, 0.0, 0.0),
R3(2.0, 2.0, 0.0),
R3(0.0, 2.0, 0.0)
])
s.shadow(f)
assert s.gaps[0].approx(Segment(0.0, 1.0))
def test_h_normal03(self):
f = Facet([R3(1.0, 0.0, 0.0), R3(0.0, 1.0, 0.0), R3(0.0, 0.0, 1.0)])
assert f.h_normal().is_collinear(R3(1.0, 1.0, 1.0))
def test_vertical02(self):
f = Facet([R3(0.0, 0.0, 0.0), R3(0.0, 0.0, 1.0), R3(1.0, 0.0, 0.0)])
assert f.is_vertical()
def test_vertical01(self):
f = Facet([R3(0.0, 0.0, 0.0), R3(3.0, 0.0, 0.0), R3(0.0, 3.0, 0.0)])
assert not f.is_vertical()