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# ----------------------------------------------------------------------------
# - Open3D: www.open3d.org -
# ----------------------------------------------------------------------------
# The MIT License (MIT)
#
# Copyright (c) 2018-2021 www.open3d.org
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
# ----------------------------------------------------------------------------
import open3d as o3d
def save_view_point(pcd, filename):
vis = o3d.visualization.Visualizer()
vis.create_window()
vis.add_geometry(pcd)
vis.run() # user changes the view and press "q" to terminate
param = vis.get_view_control().convert_to_pinhole_camera_parameters()
o3d.io.write_pinhole_camera_parameters(filename, param)
vis.destroy_window()
def load_view_point(pcd, filename):
vis = o3d.visualization.Visualizer()
vis.create_window()
ctr = vis.get_view_control()
param = o3d.io.read_pinhole_camera_parameters(filename)
vis.add_geometry(pcd)
ctr.convert_from_pinhole_camera_parameters(param)
vis.run()
vis.destroy_window()
if __name__ == "__main__":
pcd_data = o3d.data.PCDPointCloud()
pcd = o3d.io.read_point_cloud(pcd_data.path)
save_view_point(pcd, "viewpoint.json")
load_view_point(pcd, "viewpoint.json")
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