def test_sphere():
# Draw connected spheres, which are small enough to just be 8 points in a
# 2x2x2 cube.
a = Sphere((0.5, 0.5, 0.5), 1)
b = Sphere((-0.5, -0.5, -0.5), 1)
points = set(a.render()) | set(b.render())
layers = draw_layers(points, on='#', off='-')
assert_equal(
'\n\n'.join(layers),
dedent('''
---
##-
##-
-##
###
##-
-##
-##
---
''').strip(),
)
def test_plane_sphere_boolean():
# Draw a sphere and slice off the top half.
sphere = Sphere((0, 0, 0), 3)
plane = Plane((0, 0, 0), (0, 0, 1), sphere.bounds())
points = set(sphere.render()) - set(plane.render())
layers = draw_layers(points, on='#', off='-')
assert_equal(
'\n\n'.join(layers),
dedent('''
--#--
-###-
#####
-###-
--#--
-###-
#####
#####
#####
-###-
''').strip(),
)
from volume import draw_layers, Sphere
a = Sphere((0, 0, 0), 10)
b = Sphere((5, 5, 5), 10)
points = set(a.render()) | set(b.render())
sep = '-' * 80
print(sep)
for layer in draw_layers(points):
print(layer)
print(sep)
print(len(points))