i have a problem in pointscloud_visualization

tguan — Tue, 28 Aug 2018 06:17:40 GMT

from pyntcloud import PyntCloud

mesh= PyntCloud.from_file("points.ply")# 加载点云网格

mesh.plot(mesh=True, backend="threejs")# 可视化点云网格

# 随机采样将网格转换为点云

cloud = mesh.get_sample("mesh_random", n=100000, rgb=True, normals=True, as_PyntCloud=True)

# 请注意，我们传递了normals = True参数，所以现在我们的点云具有每个点的正常值。

# 引入pandas，因为PyntCloud.points是一个pandas.DataFrame，我们可以利用pandas的内置可视化选项

cloud.points[['nx','ny','nz']].plot(kind="hist", subplots=True)

# 将采样后得点云可视化

cloud.plot()

KeyError: "['nx' 'ny' 'nz'] not in index"

How to correct it?

Re: i have a problem in pointscloud_visualization

MartyG — Tue, 28 Aug 2018 06:34:01 GMT

Someone else who had a 'KeyError ... not in index' error in Pyntcloud used a "DataFrame" to define the points that the KeyError had problems with.

https://github.com/daavoo/pyntcloud/issues/155 Add colour to point? · Issue # 155 · daavoo/pyntcloud · GitHub