Implement interactive point cloud selection (with open3d python code)

Here, the selection of individual points for displaying point clouds is achieved

Hold down shift and left click to select a single point.

After closing the display interface, the serial number of the selected point will be displayed

code is below:

 
# coding:utf-8
import numpy as np
import open3d as o3d
 
# wechat:394467238
 
print("->正在加载点云... ")
point_cloud = o3d.io.read_point_cloud("kitti_p.pcd")
print(point_cloud)
 
point_cloud2 = point_cloud.voxel_down_sample(voxel_size=0.5)  # voxel_down_sample 把点云分配在三维的网格中取平均值
 
print("   按住 [shift + right click] 选择点")
 
vis = o3d.visualization.VisualizerWithEditing()
vis.create_window()
vis.add_geometry(point_cloud2)
vis.run()  # user picks points
vis.destroy_window()
print("")
pick_p = vis.get_picked_points()
print(pick_p)  # 会打印出选择的点的序号

If you have any questions or customized development requirements, you can contact me Email : lonlonago@foxmail.com or WhatsApp : +8617873123809