import os
import numpy as np
import open3d as o3d
import time
#打开文件路径
files = os.listdir("experiment_1_rec/")
files.sort(key=lambda x:int(x.split('.')[0])) #按照文件名的顺序排序

vis = o3d.visualization.Visualizer()
##创建播放窗口
vis.create_window()
pointcloud = o3d.geometry.PointCloud()
to_reset = True
vis.add_geometry(pointcloud)
for f in files:
    pcd = o3d.io.read_point_cloud("experiment_1_rec/"+f)   #此处读取的ply文件,也可读取其他格式的
    print(str("experiment_1_rec/"+f))
    pcd = np.asarray(pcd.points).reshape((-1, 3))
    pointcloud.points = o3d.utility.Vector3dVector(pcd)  
    vis.update_geometry(pointcloud)
    if to_reset:
        vis.reset_view_point(True)
        to_reset = False
    vis.poll_events()
    vis.update_renderer()
    time.sleep(0.5)