def test_fill(self):
from trimesh.voxel.morphology import fillers
hollow = Sphere().voxelized(pitch=0.1).hollow()
for key in fillers:
filled = hollow.copy().fill(key)
self.assertLess(hollow.filled_count, filled.filled_count)
def test_hollow(self):
if not g.has_binvox:
g.log.warning('no binvox to test!')
return
filled = Sphere().voxelized(pitch=0.1, method='binvox', exact=True)
hollow = filled.copy().hollow()
self.assertLess(hollow.filled_count, filled.filled_count)
self.assertGreater(hollow.filled_count, 0)
def test_strip(self):
if not g.has_binvox:
g.log.warning('no binvox to test!')
return
octant = Sphere().voxelized(pitch=0.1, method='binvox', exact=True)
dense = octant.encoding.dense.copy()
nx, ny, nz = octant.shape
dense[:nx // 2] = 0
dense[:, :ny // 2] = 0
dense[:, :, nz // 2:] = 0
octant.encoding = dense
stripped = octant.copy().strip()
self.assertEqual(octant.filled_count, stripped.filled_count)
self.assertEqual(octant.volume, stripped.volume)
np.testing.assert_allclose(octant.points, stripped.points)
self.assertGreater(octant.encoding.size, stripped.encoding.size)
def test_binvox_with_dimension(self):
if not g.has_binvox:
g.log.warning('no binvox to test!')
return
dim = 10
octant = Sphere().voxelized(pitch=None,
dimension=dim,
method='binvox',
exact=True)
self.assertEqual(octant.shape, (dim, ) * 3)
from trimesh.scene import Scene
from trimesh.primitives import Sphere
from trimesh.voxel.morphology import fillers
mesh = Sphere()
def show(surface, filled, label):
print(label)
scene = Scene()
scene.add_geometry(surface.as_boxes(colors=(1, 0, 0, 0.3)))
scene.add_geometry(filled.as_boxes(colors=(0, 0, 1, 0.5)))
scene.show()
# remove_internal produced unexpected results when boundary pixels are occupied
# not useful very often, but handy to demonstrate filling algorithms.
surface = mesh.voxelized(pitch=0.2, method='binvox', remove_internal=True)
for impl in fillers:
show(surface, surface.copy().fill(method=impl), impl)
filled = mesh.voxelized(pitch=0.05, method='binvox',
exact=True).fill(method='holes')
hollow = filled.copy().hollow()
print('filled volume, hollow_volume')
print(filled.volume, hollow.volume)
print('hollow voxel (zoom in to see hollowness)')
hollow.show()