def test_parabola_intersection():
l1 = Line(Point(1, -2), Point(-1, -2))
l2 = Line(Point(1, 2), Point(-1, 2))
l3 = Line(Point(1, 0), Point(-1, 0))
p1 = Point(0, 0)
p2 = Point(0, -2)
p3 = Point(120, -12)
parabola1 = Parabola(p1, l1)
# parabola with parabola
assert parabola1.intersection(parabola1) == [parabola1]
assert parabola1.intersection(Parabola(
p1, l2)) == [Point2D(-2, 0), Point2D(2, 0)]
assert parabola1.intersection(Parabola(p2, l3)) == [Point2D(0, -1)]
assert parabola1.intersection(Parabola(Point(16, 0),
l1)) == [Point2D(8, 15)]
assert parabola1.intersection(Parabola(Point(
0, 16), l1)) == [Point2D(-6, 8), Point2D(6, 8)]
assert parabola1.intersection(Parabola(p3, l3)) == []
# parabola with point
assert parabola1.intersection(p1) == []
assert parabola1.intersection(Point2D(0, -1)) == [Point2D(0, -1)]
assert parabola1.intersection(Point2D(4, 3)) == [Point2D(4, 3)]
# parabola with line
assert parabola1.intersection(Line(Point2D(-7, 3), Point(
12, 3))) == [Point2D(-4, 3), Point2D(4, 3)]
assert parabola1.intersection(Line(Point(-4, -1),
Point(4, -1))) == [Point(0, -1)]
assert parabola1.intersection(Line(Point(2, 0),
Point(0, -2))) == [Point2D(2, 0)]
raises(
TypeError,
lambda: parabola1.intersection(Line(Point(0, 0, 0), Point(1, 1, 1))))
# parabola with segment
assert parabola1.intersection(Segment2D(
(-4, -5), (4, 3))) == [Point2D(0, -1), Point2D(4, 3)]
assert parabola1.intersection(Segment2D((0, -5),
(0, 6))) == [Point2D(0, -1)]
assert parabola1.intersection(Segment2D((-12, -65), (14, -68))) == []
# parabola with ray
assert parabola1.intersection(Ray2D(
(-4, -5), (4, 3))) == [Point2D(0, -1), Point2D(4, 3)]
assert parabola1.intersection(Ray2D(
(0, 7), (1, 14))) == [Point2D(14 + 2 * sqrt(57), 105 + 14 * sqrt(57))]
assert parabola1.intersection(Ray2D((0, 7), (0, 14))) == []
# parabola with ellipse/circle
assert parabola1.intersection(Circle(
p1, 2)) == [Point2D(-2, 0), Point2D(2, 0)]
assert parabola1.intersection(Circle(
p2, 1)) == [Point2D(0, -1), Point2D(0, -1)]
assert parabola1.intersection(Ellipse(
p2, 2, 1)) == [Point2D(0, -1), Point2D(0, -1)]
assert parabola1.intersection(Ellipse(Point(0, 19), 5, 7)) == []
assert parabola1.intersection(Ellipse((0, 3), 12, 4)) == \
[Point2D(0, -1), Point2D(0, -1), Point2D(-4*sqrt(17)/3, Rational(59, 9)), Point2D(4*sqrt(17)/3, Rational(59, 9))]
# parabola with unsupported type
raises(TypeError, lambda: parabola1.intersection(2))
def test_geometry():
p1 = Point(1, 2)
p2 = Point(2, 3)
p3 = Point(0, 0)
p4 = Point(0, 1)
for c in (
GeometryEntity,
GeometryEntity(),
Point,
p1,
Circle,
Circle(p1, 2),
Ellipse,
Ellipse(p1, 3, 4),
Line,
Line(p1, p2),
LinearEntity,
LinearEntity(p1, p2),
Ray,
Ray(p1, p2),
Segment,
Segment(p1, p2),
Polygon,
Polygon(p1, p2, p3, p4),
RegularPolygon,
RegularPolygon(p1, 4, 5),
Triangle,
Triangle(p1, p2, p3),
):
check(c, check_attr=False)
def test_geometry():
p1 = Point(1, 2)
p2 = Point(2, 3)
p3 = Point(0, 0)
p4 = Point(0, 1)
for c in (GeometryEntity, GeometryEntity(), Point, p1, Circle,
Circle(p1, 2), Ellipse, Ellipse(p1, 3, 4), Line, Line(p1, p2),
LinearEntity, LinearEntity(p1, p2), Ray, Ray(p1, p2), Segment,
Segment(p1, p2), Polygon, Polygon(p1, p2, p3,
p4), RegularPolygon,
RegularPolygon(p1, 4, 5), Triangle):
# XXX: Instance of Triangle hangs because of hasattr in check().
# Triangle(p1,p2,p3)
check(c)
pass