Empty skeleton when running example

[benjaminralex]

Hello,

When running the following example:

`import open3d as o3d
import numpy as np

from pc_skeletor import Dataset

downloader = Dataset()
trunk_pcd_path, branch_pcd_path = downloader.download_semantic_tree_dataset()

pcd_trunk = o3d.io.read_point_cloud(trunk_pcd_path)
pcd_branch = o3d.io.read_point_cloud(branch_pcd_path)
pcd = pcd_trunk + pcd_branch
`

`from pc_skeletor import LBC

lbc = LBC(point_cloud=pcd,
down_sample=0.008)
lbc.extract_skeleton()
lbc.extract_topology()
lbc.visualize()
lbc.show_graph(lbc.skeleton_graph)
lbc.show_graph(lbc.topology_graph)
lbc.save('./output')
lbc.animate(init_rot=np.asarray([[1, 0, 0], [0, 0, 1], [0, 1, 0]]),
steps=300,
output='./output')
`

I get these errors:

lbc.extract_topology() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/pc-skeletor/pc_skeletor/laplacian.py", line 282, in extract_topology self.skeleton = self.contracted_point_cloud.farthest_point_down_sample(num_samples=self.fps_points) AttributeError: 'open3d.cpu.pybind.geometry.PointCloud' object has no attribute 'farthest_point_down_sample

lbc.show_graph(lbc.skeleton_graph) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/pc-skeletor/pc_skeletor/base.py", line 59, in show_graph nx.draw_networkx(G=graph, pos=np.asarray(pos)[:, [0, 2]]) IndexError: too many indices for array: array is 1-dimensional, but 2 were indexed

Are there any fixes for these?

Thanks!

[meyerls]

My first guess is that the open3d version is not correct (my bad that I did not specify any version). Please try pip install open3d==0.17.0