def visualize_layers(reachable_layers):
layers = {}
for (x, y, z), label in label_matrix.voxels.items():
pos = Vec3(x, y, z)
if label == 0 or label not in reachable_layers:
continue
if label in layers:
layers[label][pos] = True
continue
layers[label] = np.zeros(label_matrix.shape, dtype=bool)
layers[label][pos] = True
color_gen = randomcolor.RandomColor()
colors = color_gen.generate(count=len(layers), format_='rgb')
for i in range(len(colors)):
values = map(lambda e: int(e), re.findall('\\d+', colors[i]))
values = list(values)
colors[i] = (values[0] / 255, values[1] / 255, values[2] / 255)
meshes = []
i = 0
for label in layers:
color = colors[i]
meshes.append(Mesh.from_voxel_grid(layers[label], colors=color))
i += 1
show(meshes)
import numpy as np
from simple_3dviz import Mesh, Lines
from simple_3dviz.window import show
def heart_voxel_grid(N):
"""Create a NxNxN voxel grid with True if the voxel is inside a heart
object and False otherwise."""
x = np.linspace(-1.3, 1.3, N)
y = np.linspace(-1.3, 1.3, N)
z = np.linspace(-1.3, 1.3, N)
x, y, z = np.meshgrid(x, y, z)
return (2 * x**2 + y**2 + z**2 -
1)**3 - (1 / 10) * x**2 * z**3 - y**2 * z**3 < 0
if __name__ == "__main__":
voxels = heart_voxel_grid(64)
m = Mesh.from_voxel_grid(voxels, colors=(0.8, 0, 0))
l = Lines.from_voxel_grid(voxels, colors=(0, 0, 0.), width=0.001)
show([l, m])