def test_intersecting_ray_sphere_at_two_points_return_true():
x = _intersect_ray_with_sphere(x1, y1)
diff1 = x[0] - p1
diff2 = x[1] - p2
d1 = abs(np.linalg.norm(diff1._vector))
d2 = abs(np.linalg.norm(diff2._vector))
assert (d1 < 10**(-5) and d2 < 10**(-5)) == True is True
def test__intersect_ray_with_sphere__two_point_intersection():
R = Ray(Point((0, 0, 2)), Vector(
(1, 0, 0))) #ray passing through the sphere
S = Sphere(Point((0, 0, 0)), 3)
val = np.sqrt(5)
assert (_intersect_ray_with_sphere(R, S) == (Point(
(val, 0, 2)), Point((-val, 0, 2)))) is True
def test__intersect_ray_with_sphere_return_false_1():
sph = Sphere((0, 0, 0), 1)
ray = Ray((5, 0, 0), (0, 5, 0))
val = 2
temp = _intersect_ray_with_sphere(ray, sph)
if temp == 0:
val = 0
assert (val == 2) is False
def test__intersect_ray_with_sphere_return_true_1():
sph = Sphere((0, 0, 0), 2)
ray = Ray((2, 0, 0), (2, 1, 0))
temp = _intersect_ray_with_sphere(ray, sph)
val = 2
if np.array_equal(temp, [[2, 0, 0]]) is True:
val = 1
assert (val == 1) is True
def test__intersect_ray_with_sphere_return_true():
sph = Sphere((0, 0, 0), 1)
ray = Ray((-1, 0, 0), (0, 0, 0))
temp = _intersect_ray_with_sphere(ray, sph)
val = 1
print(temp)
if np.array_equal(temp, [[1.0, 0.0, 0.0], [-1.0, 0.0, 0.0]]):
val = 2
assert (val == 2) is True
def test__intersect_ray_with_sphere_return_false():
sph = Sphere((0, 0, 0), 1)
ray = Ray((1, 0, 0), (1, 1, 0))
val = 2
temp = _intersect_ray_with_sphere(ray, sph)
print(temp)
if np.array_equal(temp, [[1.0, 0.0, 0.0]]) is True:
val = 1
assert (val == 2) is False
def test_intersect_ray_and_sphere_with_different_origin_and_no_intersection():
assert (_intersect_ray_with_sphere(
Ray(Point((0, 0, 0)), Vector(
(-1, -1, -1))), Sphere(Point(
(4, 4, 0)), 1)) == "No Intersecction") is True
def test_non_intersecting_ray_sphere_return_false():
assert _intersect_ray_with_sphere(x, y) is False
def test_intersect_ray_sphere_one_intersect_tangent_point__one_correct_point():
Ray1=Ray((5,5,0),(0,0,1))
Sphere1=Sphere((5,5,0),5)
np.testing.assert_array_equal (_intersect_ray_with_sphere(Ray1, Sphere1),np.array([5,5,5]))
def test__intersect_ray_with_sphere__ray_outside_sphere__two_points__return_true(
):
assert np.array_equal(
_intersect_ray_with_sphere(Ray((-2, 1, 1),
(1, 0, 0)), Sphere((1, 1, 1), 1.0)),
[Point([2, 1, 1]), Point([0, 1, 1])]) is True
def test__intersect_ray_with_sphere__ray_in_sphere__one_point__return_true():
assert (_intersect_ray_with_sphere(Ray((-0.5, 0, 0), (1, 0, 0)),
Sphere((0, 0, 0),
1.0)) == Point([1, 0, 0]))
def test__intersect_given_sphere_ray__intersected_two_point_d_grater_then_0():
assert (_intersect_ray_with_sphere(
Ray(direction=Vector((1, -1, 0)), origin=Point(
(0, 1, 0))), Sphere(center=Point((0, 0, 0)), radius=1)) == (Point(
(1, 0, 0)), Point((0, 1, 0)))) is True
def test_given_ray_sphere_return_tangent_intersection():
assert (_intersect_ray_with_sphere(Ray(
(0, 0, 0), (1, 1, 0)), Sphere((1, 1, 1), 1)) == Point(
(1, 1, 0))) is True
def test_given_ray_sphere_no_intersection_return_false():
assert (_intersect_ray_with_sphere(Ray(
(0, 0, 0), (0, 1, 0)), Sphere((5, 5, 5), 5)) is False) is True
def test_given_ray_sphere_same_origin_return_one_point_intersection():
assert (_intersect_ray_with_sphere(Ray(
(0, 0, 0), (0, -1, 0)), Sphere((0, 0, 0), 5)) == Point(
(0, -5, 0))) is True
def test_intersect_ray_sphere_two_intersect_vertical__two_correct_points():
Ray1=Ray((1,0,0),[0,1,0])
Sphere1=Sphere((1,6,0),5)
np.testing.assert_array_equal (_intersect_ray_with_sphere(Ray1, Sphere1),np.array([[1.0,11.0,0],[1.0,1.0,0]]))
def test_intersect_ray_sphere_two_intersect_horizontal__two_correct_points():
Ray1=Ray((-6,0,0),[1,0,0])
Sphere1=Sphere((0,0,0),5)
np.testing.assert_array_equal (_intersect_ray_with_sphere(Ray1, Sphere1),np.array([[5.0,0,0],[-5.0,0,0]]))
def test_intersecting_ray_sphere_at_one_point_return_true():
x = _intersect_ray_with_sphere(x2, y2)
diff = x - p
d = abs(np.linalg.norm(diff._vector))
assert (d < 10**(-5)) == True is True
def test__intersect_ray_with_sphere__two_points__return_true():
assert np.array_equal(
_intersect_ray_with_sphere(Ray((-2, 0, 0),
(1, 0, 0)), Sphere((0, 0, 0), 1.0)),
[Point([1, 0, 0]), Point([-1, 0, 0])]) is True
def test__intersect_given_sphere_ray__not_intersected_two_point_d_less_than_0__return_NotImplimented(
):
assert (_intersect_ray_with_sphere(
Ray(direction=Vector((1, 1, 0)), origin=Point(
(1, 1, 0))), Sphere(center=Point(
(0, 0, 0)), radius=1))) is NotImplemented
def test__intersect_ray_with_sphere__ray_outside_sphere__one_point__return_true(
):
assert (_intersect_ray_with_sphere(Ray((-3, 1, 0), (1, 0, 0)),
Sphere((1, 1, 1),
1.0)) == Point([1, 1, 0]))
def test__intersect_ray_with_sphere__does_not_intersect():
R = Ray(Point((0, 0, 4)), Vector((1, 0, 0))) #ray outside sphere
S = Sphere(Point((0, 0, 0)), 3) #sphere with center at origin and radius 3
assert (_intersect_ray_with_sphere(R, S) == "Does not intersect") is True
def test__intersect_ray_with_sphere__ray_outside_sphere__no_points__return_true(
):
assert (_intersect_ray_with_sphere(Ray((-2, 1.5, 0), (1, 0, 0)),
Sphere((1, 1, 1), 1.0)) == None)
def test__intersect_ray_with_sphere__one_point_intersection():
R = Ray(Point((0, 0, 3)), Vector((1, 0, 0))) #ray touching sphere surface
S = Sphere(Point((0, 0, 0)), 3)
assert (_intersect_ray_with_sphere(R, S) == Point((0, 0, 3))) is True
def test_intersect_ray_and_sphere_with_different_origin():
assert (_intersect_ray_with_sphere(
Ray(Point((0, 0, 0)), Vector((1, 1, 1))), Sphere(Point((3, 3, 3)), 1))
== (Point([2.42, 2.42, 2.42]), Point([3.58, 3.58, 3.58]))) is True
def test_intersect_sphere_and_ray_return_true():
assert (intersect(y0, x0) == _intersect_ray_with_sphere(x0, y0)) is True
def test_intersect_ray_and_sphere_with_same_origin():
assert (_intersect_ray_with_sphere(
Ray(Point((0, 0, 0)), Vector((1, 1, 1))), Sphere(Point(
(0, 0, 0)), 2)) == Point([1.15, 1.15, 1.15])) is True
def test_intersect_ray_sphere_no_intersect__return_False():
Ray1=Ray((0,0,6),(1,0,0))
Sphere1=Sphere((0,0,0),5)
assert _intersect_ray_with_sphere(Ray1, Sphere1) is False
