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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 custom_key_action_without_kb_repeat_delay(pcd):
rotating = False
vis = o3d.visualization.VisualizerWithKeyCallback()
def key_action_callback(vis, action, mods):
nonlocal rotating
print(action)
if action == 1: # key down
rotating = True
elif action == 0: # key up
rotating = False
elif action == 2: # key repeat
pass
return True
def animation_callback(vis):
nonlocal rotating
if rotating:
ctr = vis.get_view_control()
ctr.rotate(10.0, 0.0)
# key_action_callback will be triggered when there's a keyboard press, release or repeat event
vis.register_key_action_callback(32, key_action_callback) # space
# animation_callback is always repeatedly called by the visualizer
vis.register_animation_callback(animation_callback)
vis.create_window()
vis.add_geometry(pcd)
vis.run()
if __name__ == "__main__":
ply_data = o3d.data.PLYPointCloud()
pcd = o3d.io.read_point_cloud(ply_data.path)
print(
"Customized visualization with smooth key action (without keyboard repeat delay)"
)
custom_key_action_without_kb_repeat_delay(pcd)
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