def test_triangle(self):
ref_point = (0.0, 0.5)
surf = Surface(ref_point)
triangle = [((-1.0, 0.0), (0.0, 1.0)), ((0.0, 1.0), (1.0, 0.0)), ((1.0, 0.0), (-1.0, 0.0))]
for surface in triangle:
surf.add_surface(surface)
c = 1.0 / sqrt(2.0)
self.assertTrue(surf.get_surf_count() == 3)
tangent = surf.get_surf_tangent(0)
normal = surf.get_surf_normal(0)
self.assertAlmostEqual(tangent[0], c, 6)
self.assertAlmostEqual(tangent[1], c, 6)
self.assertAlmostEqual(normal[0], -c, 6)
self.assertAlmostEqual(normal[1], c, 6)
tangent = surf.get_surf_tangent(1)
normal = surf.get_surf_normal(1)
self.assertAlmostEqual(tangent[0], c, 6)
self.assertAlmostEqual(tangent[1], -c, 6)
self.assertAlmostEqual(normal[0], c, 6)
self.assertAlmostEqual(normal[1], c, 6)
tangent = surf.get_surf_tangent(2)
normal = surf.get_surf_normal(2)
self.assertAlmostEqual(tangent[0], -1.0, 6)
self.assertAlmostEqual(tangent[1], 0.0, 6)
self.assertAlmostEqual(normal[0], 0.0, 6)
self.assertAlmostEqual(normal[1], -1.0, 6)
def test_box(self):
ref_point = (0.0, 0.0)
surf_temp = 300.0
surf = Surface(ref_point)
box = [
((-1.0, -1.0), (-1.0, 1.0)),
((-1.0, 1.0), (1.0, 1.0)),
((1.0, 1.0), (1.0, -1.0)),
((1.0, -1.0), (-1.0, -1.0)),
]
for surface in box:
surf.add_surface(surface, surf_temp)
self.assertTrue(surf.get_surf_count() == 4)
tangent = surf.get_surf_tangent(0)
normal = surf.get_surf_normal(0)
self.assertAlmostEqual(tangent[0], 0.0, 6)
self.assertAlmostEqual(tangent[1], 1.0, 6)
self.assertAlmostEqual(normal[0], -1.0, 6)
self.assertAlmostEqual(normal[1], 0.0, 6)
tangent = surf.get_surf_tangent(1)
normal = surf.get_surf_normal(1)
self.assertAlmostEqual(tangent[0], 1.0, 6)
self.assertAlmostEqual(tangent[1], 0.0, 6)
self.assertAlmostEqual(normal[0], 0.0, 6)
self.assertAlmostEqual(normal[1], 1.0, 6)
tangent = surf.get_surf_tangent(2)
normal = surf.get_surf_normal(2)
self.assertAlmostEqual(tangent[0], 0.0, 6)
self.assertAlmostEqual(tangent[1], -1.0, 6)
self.assertAlmostEqual(normal[0], 1.0, 6)
self.assertAlmostEqual(normal[1], 0.0, 6)
tangent = surf.get_surf_tangent(3)
normal = surf.get_surf_normal(3)
self.assertAlmostEqual(tangent[0], -1.0, 6)
self.assertAlmostEqual(tangent[1], 0.0, 6)
self.assertAlmostEqual(normal[0], 0.0, 6)
self.assertAlmostEqual(normal[1], -1.0, 6)
