1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
# ----------------------------------------------------------------------------
# - Open3D: www.open3d.org -
# ----------------------------------------------------------------------------
# Copyright (c) 2018-2024 www.open3d.org
# SPDX-License-Identifier: MIT
# ----------------------------------------------------------------------------
import open3d as o3d
import numpy as np
if __name__ == "__main__":
bunny = o3d.data.BunnyMesh()
gt_mesh = o3d.io.read_triangle_mesh(bunny.path)
gt_mesh.compute_vertex_normals()
pcd = gt_mesh.sample_points_poisson_disk(5000)
# Invalidate existing normals.
pcd.normals = o3d.utility.Vector3dVector(np.zeros((1, 3)))
print("Displaying input pointcloud ...")
o3d.visualization.draw_geometries([pcd], point_show_normal=True)
pcd.estimate_normals()
print("Displaying pointcloud with normals ...")
o3d.visualization.draw_geometries([pcd], point_show_normal=True)
print("Printing the normal vectors ...")
print(np.asarray(pcd.normals))
|
