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@sgsellan
sgsellan committed Jun 3, 2024
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2 changes: 1 addition & 1 deletion .github/workflows/linux_build.yml
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Expand Up @@ -50,6 +50,6 @@ jobs:
shell: bash -l {0}
run: |
python -m pip install tetgen
python -m pytest --durations=0
python -m pytest test/test_*.py --durations=0
# see https://github.com/libigl/libigl/blob/main/.github/workflows/continuous.yml
2 changes: 1 addition & 1 deletion .github/workflows/macos_build.yml
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Expand Up @@ -42,6 +42,6 @@ jobs:
shell: bash -l {0}
run: |
${{ steps.installpython.outputs.python-path }} -m pip install tetgen
${{ steps.installpython.outputs.python-path }} -m pytest --durations=0
${{ steps.installpython.outputs.python-path }} -m pytest test/test_*.py --durations=0
# see https://github.com/libigl/libigl/blob/main/.github/workflows/continuous.yml
2 changes: 1 addition & 1 deletion .github/workflows/windows_build.yml
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Expand Up @@ -79,7 +79,7 @@ jobs:
shell: bash -l {0}
run: |
python -m pip install tetgen
python -m pytest --durations=0
python -m pytest test/test_*.py --durations=0
# python -c "import gpytoolbox"
# python -c "import gpytoolbox_bindings"

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118 changes: 59 additions & 59 deletions test/test_reach_for_the_spheres.py
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Expand Up @@ -4,73 +4,73 @@


class TestReachForTheSpheres(unittest.TestCase):
# def test_beat_marching_cubes_low_res(self):
# meshes = ["bunny_oded.obj", "spot.obj", "teddy.obj"]
# ns = [10, 20, 30]
# for mesh in meshes:
# for n in ns:
# v, f = gpy.read_mesh("test/unit_tests_data/" + mesh)
# v = gpy.normalize_points(v)
def test_beat_marching_cubes_low_res(self):
meshes = ["bunny_oded.obj", "spot.obj", "teddy.obj"]
ns = [10, 20, 30]
for mesh in meshes:
for n in ns:
v, f = gpy.read_mesh("test/unit_tests_data/" + mesh)
v = gpy.normalize_points(v)

# # Create and abstract SDF function that is the only connection to the shape
# sdf = lambda x: gpy.signed_distance(x, v, f)[0]
# gx, gy, gz = np.meshgrid(np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1))
# GV = np.vstack((gx.flatten(), gy.flatten(), gz.flatten())).T
# # V0, E0 = gpy.marching_squares(sdf(GV), GV, n+1, n+1)
# V_mc, F_mc = gpy.marching_cubes(sdf(GV), GV, n+1, n+1, n+1)
# h_mc = gpy.approximate_hausdorff_distance(V_mc, F_mc.astype(np.int32), v, f.astype(np.int32), use_cpp = True)
# V0, F0 = gpy.icosphere(2)
# U,G = gpy.reach_for_the_spheres(GV, sdf, V0, F0, verbose=False, min_h = np.clip(1.5/n, 0.001, 0.1))
# h_ours = gpy.approximate_hausdorff_distance(U, G.astype(np.int32), v, f.astype(np.int32), use_cpp = True)
# Create and abstract SDF function that is the only connection to the shape
sdf = lambda x: gpy.signed_distance(x, v, f)[0]
gx, gy, gz = np.meshgrid(np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1))
GV = np.vstack((gx.flatten(), gy.flatten(), gz.flatten())).T
# V0, E0 = gpy.marching_squares(sdf(GV), GV, n+1, n+1)
V_mc, F_mc = gpy.marching_cubes(sdf(GV), GV, n+1, n+1, n+1)
h_mc = gpy.approximate_hausdorff_distance(V_mc, F_mc.astype(np.int32), v, f.astype(np.int32), use_cpp = True)
V0, F0 = gpy.icosphere(2)
U,G = gpy.reach_for_the_spheres(GV, sdf, V0, F0, verbose=False, min_h = np.clip(1.5/n, 0.001, 0.1))
h_ours = gpy.approximate_hausdorff_distance(U, G.astype(np.int32), v, f.astype(np.int32), use_cpp = True)

# # print(f"reach_for_the_spheres h: {h_ours}, MC h: {h_mc} for {mesh} with n={n}")
# self.assertTrue(h_ours < h_mc)
# print(f"reach_for_the_spheres h: {h_ours}, MC h: {h_mc} for {mesh} with n={n}")
self.assertTrue(h_ours < h_mc)

# def test_noop(self):
# meshes = ["bunny_oded.obj", "spot.obj", "teddy.obj"]
# for mesh in meshes:
# v, f = gpy.read_mesh("test/unit_tests_data/" + mesh)
# v = gpy.normalize_points(v)
def test_noop(self):
meshes = ["bunny_oded.obj", "spot.obj", "teddy.obj"]
for mesh in meshes:
v, f = gpy.read_mesh("test/unit_tests_data/" + mesh)
v = gpy.normalize_points(v)

# sdf = lambda x: gpy.signed_distance(x, v, f)[0]
# n = 20
# gx, gy, gz = np.meshgrid(np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1))
# GV = np.vstack((gx.flatten(), gy.flatten(), gz.flatten())).T
# U,G = gpy.reach_for_the_spheres(GV, sdf, v, f, verbose=False)
sdf = lambda x: gpy.signed_distance(x, v, f)[0]
n = 20
gx, gy, gz = np.meshgrid(np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1))
GV = np.vstack((gx.flatten(), gy.flatten(), gz.flatten())).T
U,G = gpy.reach_for_the_spheres(GV, sdf, v, f, verbose=False)

# h = gpy.approximate_hausdorff_distance(U, G.astype(np.int32), v, f.astype(np.int32), use_cpp=True)
# self.assertTrue(h < 2e-3)
h = gpy.approximate_hausdorff_distance(U, G.astype(np.int32), v, f.astype(np.int32), use_cpp=True)
self.assertTrue(h < 2e-3)

# def test_simple_is_sdf_violated(self):
# meshes = ["cube.obj", "hemisphere.obj", "cone.obj"]
# for mesh in meshes:
# n = 30
# v, f = gpy.read_mesh("test/unit_tests_data/" + mesh)
# v = gpy.normalize_points(v)
def test_simple_is_sdf_violated(self):
meshes = ["cube.obj", "hemisphere.obj", "cone.obj"]
for mesh in meshes:
n = 30
v, f = gpy.read_mesh("test/unit_tests_data/" + mesh)
v = gpy.normalize_points(v)

# # Create and abstract SDF function that is the only connection to the shape
# sdf = lambda x: gpy.signed_distance(x, v, f)[0]
# gx, gy, gz = np.meshgrid(np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1))
# GV = np.vstack((gx.flatten(), gy.flatten(), gz.flatten())).T
# V0, F0 = gpy.icosphere(2)
# U,G = gpy.reach_for_the_spheres(GV, sdf, V0, F0, verbose=False, min_h = 0.5/n)
# sdf_rec = lambda x: gpy.signed_distance(x, U, G)[0]
# self.assertTrue(np.max(np.abs(sdf(GV)-sdf_rec(GV))) < 0.02)
# Create and abstract SDF function that is the only connection to the shape
sdf = lambda x: gpy.signed_distance(x, v, f)[0]
gx, gy, gz = np.meshgrid(np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1), np.linspace(-1.0, 1.0, n+1))
GV = np.vstack((gx.flatten(), gy.flatten(), gz.flatten())).T
V0, F0 = gpy.icosphere(2)
U,G = gpy.reach_for_the_spheres(GV, sdf, V0, F0, verbose=False, min_h = 0.5/n)
sdf_rec = lambda x: gpy.signed_distance(x, U, G)[0]
self.assertTrue(np.max(np.abs(sdf(GV)-sdf_rec(GV))) < 0.02)

# def test_segfault(self):
# V,F = gpy.read_mesh("test/unit_tests_data/53159.stl")
# # is mesh normalized? print corners
# # print(np.min(V, axis=0))
# # print(np.max(V, axis=0))
# V = gpy.normalize_points(V)
# j = 32
# sdf = lambda x: gpy.signed_distance(x, V, F)[0]
# gx, gy, gz = np.meshgrid(np.linspace(-1.0, 1.0, j+1), np.linspace(-1.0, 1.0, j+1), np.linspace(-1.0, 1.0, j+1))
# U = np.vstack((gx.flatten(), gy.flatten(), gz.flatten())).T
# V0, F0 = gpy.icosphere(2)
# Vr,Fr = gpy.reach_for_the_spheres(U, sdf, V0, F0, min_h = .01, verbose = False)
# # this should not segfault
# gpy.write_mesh("test_last_converged.obj", Vr, Fr)
def test_segfault(self):
V,F = gpy.read_mesh("test/unit_tests_data/53159.stl")
# is mesh normalized? print corners
# print(np.min(V, axis=0))
# print(np.max(V, axis=0))
V = gpy.normalize_points(V)
j = 32
sdf = lambda x: gpy.signed_distance(x, V, F)[0]
gx, gy, gz = np.meshgrid(np.linspace(-1.0, 1.0, j+1), np.linspace(-1.0, 1.0, j+1), np.linspace(-1.0, 1.0, j+1))
U = np.vstack((gx.flatten(), gy.flatten(), gz.flatten())).T
V0, F0 = gpy.icosphere(2)
Vr,Fr = gpy.reach_for_the_spheres(U, sdf, V0, F0, min_h = .01, verbose = False)
# this should not segfault
gpy.write_mesh("test_last_converged.obj", Vr, Fr)

def test_singularity(self):
V,F = gpy.read_mesh("test/unit_tests_data/horse.obj")
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