[英]How to create point cloud file(.ply) from vertices stored as numpy array?
I have some vertices whose coordinates were stored as NumPy array.我有一些顶点的坐标存储为 NumPy 数组。
xyz_np: xyz_np:
array([[ 7, 53, 31],
[ 61, 130, 116],
[ 89, 65, 120],
...,
[ 28, 72, 88],
[ 77, 65, 82],
[117, 90, 72]], dtype=int32)
I want to save these vertices as a point cloud file(such as.ply) and visualize it in Blender.我想将这些顶点保存为点云文件(例如.ply)并在 Blender 中可视化。
I don't have face information.我没有人脸信息。
You can use Open3D to do this.您可以使用Open3D来执行此操作。
# Pass numpy array to Open3D.o3d.geometry.PointCloud and visualize
xyz = np.random.rand(100, 3)
pcd = o3d.geometry.PointCloud()
pcd.points = o3d.utility.Vector3dVector(xyz)
o3d.io.write_point_cloud("./data.ply", pcd)
You can also visualize the point cloud using Open3D .您还可以使用 Open3D 可视化点云。
o3d.visualization.draw_geometries([pcd])
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