I am trying to visualise a 3d point cloud. My specific case is that i broke down the point cloud into N (x-y) planes perform some processing . After this i wish to visualise it such that when the open3d screen is open as each plane is being read it is visualised on the screen and after a time delay the next plane is added .
This link looks similar but dosent work in my case: Adding new points to point cloud in real time - Open3D
My input data is in the form of a sorted list eg [[1,2,3],[1,5,6],[7,8,9],[7,9,10]]. Where planes are formed based on having the same x coordinate value. I also have another list that saves the index of each plane which i was using in the loop
I would be grateful if someone could provide me with a tested out script or any idea.
I tried :
import open3d as o3d
import numpy as np
import time
# create visualizer and window.
vis = o3d.visualization.Visualizer()
vis.create_window()
point0=np.array(sorted_arr[0])
# initialize pointcloud instance.
pcd = o3d.geometry.PointCloud()
# *optionally* add initial points
points = point0
pcd.points = o3d.utility.Vector3dVector([points])
# include it in the visualizer before non-blocking visualization.
vis.add_geometry(pcd)
# to add new points each dt secs.
dt = 0.01
# number of points that will be added
#n_new = 10
previous_t = time.time()
i=0
keep_running = True
while (keep_running==True):
if time.time() - previous_t > dt:
# Options (uncomment each to try them out):
# 1) extend with ndarrays.
if((i+1)==(len(temp)-2)):
x=input("ENTER")
keep_running=False
else:
pcd.points.extend(np.array(sorted_arr[temp[i]:temp[i+1]]))
print(i)
i=i+1
vis.update_geometry(pcd)
previous_t = time.time()
#keep_running = vis.poll_events()
vis.update_renderer()
vis.destroy_window()
