def test_intersect_ray_with_triangle_true():
t = Triangle((1, 0, 0), (0, 1, 0), (0, 0, 1))
r1 = Ray((0, 0, 0), (1, 1, 1))
d, intercepts = intersect(r1, t)
intercepts_analytical = Point(
[0.3333333333333333, 0.3333333333333333, 0.3333333333333333])
d_analytical = 1
assert ((intercepts == intercepts_analytical) and
(d_analytical == d)) is True
def test__intersect_ray_with_triangle_return_false_2():
triangle = Triangle((1, 0, 0), (-1, 0, 0), (0, 1, 0))
ray = Ray((0, 0, 1), (0, 0, 0))
val = _intersect_ray_with_triangle(ray, triangle)
assert (val == 0) is False
def test__intersect_ray_with_triangle_return_true_1():
triangle = Triangle((1, 0, 0), (-1, 0, 0), (0, 1, 0))
ray = Ray((0.5, 0, 0), (0, 0.5, 0))
val = _intersect_ray_with_triangle(ray, triangle)
assert (val == 2) is True
def test_triangle_given_triangles_equal_true():
t1 = Triangle((10, 0, 0), (0, 10, 0), (0, 0, 10))
t2 = Triangle((10, 0, 0), (0, 10, 0), (0, 0, 10))
assert (t1 == t2) is True
def test_triangle_init_function_point_list():
t1 = Triangle(Point((0, 10, 0)), Point((10, 0, 0)), Point((0, 0, 10)))
t2 = Triangle((0, 10, 0), (10, 0, 0), (0, 0, 10))
assert (t1 == t2) is True
# inputs for ray and sphere intersecting at 1 point
x0 = Ray((0, 10, 0), (0, -1, 0))
y0 = Sphere((5, 0, 0), 5)
def test_intersect_ray_and_sphere_return_true():
assert (intersect(x0, y0) == _intersect_ray_with_sphere(x0, y0)) is True
def test_intersect_sphere_and_ray_return_true():
assert (intersect(y0, x0) == _intersect_ray_with_sphere(x0, y0)) is True
# input for intersecting ray and triangle
r0 = Ray((5, 2, 5), (0, 0, -1))
t0 = Triangle((0, 0, 0), (10, 0, 0), (5, 10, 0))
def test_intersect_ray_and_triangle_return_true():
assert (intersect(r0, t0) == _intersect_ray_with_triangle(r0, t0)) is True
def test_intersect_triangle_and_ray_return_true():
assert (intersect(t0, r0) == _intersect_ray_with_triangle(r0, t0)) is True
def test_intersect_sphere_and_triangle_return_false():
assert intersect(y0, t0) is False
# _intersect_ray_with_sphere
from pygeo.objects import Point, Vector, Ray, Sphere, Triangle
from pygeo.intersect import intersect
"""To check if the installation of the package is done and all packages are running"""
r1 = Ray((0, 0, 0), (10, 0, 0))
s1 = Sphere((0, 0, 0), 5)
d, intercepts = intersect(r1, s1)
print('The ', r1, 'intersects ', s1, 'at', intercepts)
t = Triangle((1, 0, 0), (0, 1, 0), (0, 0, 1))
r1 = Ray((0, 0, 0), (1, 1, 1))
d, intercepts = intersect(r1, t)
print('The ', r1, 'intersects ', t, 'at', intercepts)
def test_triangle_equal_given_two_non_equal_triangles_return_false():
assert (Triangle((1, 0, 0), (0, 1, 0), (0, 0, 1)) == Triangle(
(1, 0, 0), (0, 1, 1), (0, 1, 0))) is False
def test_triangle_equal_given_two_equal_triangles_return_true():
assert (Triangle((1, 0, 0), (0, 1, 0), (0, 0, 1)) == Triangle(
(1, 0, 0), (0, 0, 1), (0, 1, 0))) is True
def test_given_ray_triangle_no_intersection_return_false():
assert (_intersect_ray_with_triangle(
Ray((0, 0, 0), (1, 1, 0)), Triangle(
((1, 1, 0), (3, 1, 0), (2, 0, 1)))) == Point((0, 0, 1))) is True
def test_given_ray_triangle_return_intersection_point():
assert (_intersect_ray_with_triangle(
Ray((5, 2, 5),
(0, 0, -1)), Triangle(
((0, 0, 0), (10, 0, 0), (5, 10, 0)))) == Point(
(0.4, 0.2, 5))) is True