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2d point cloud
roslaunch point_cloud_pkg test.launch
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3d
roslaunch point_cloud_pkg point_collsion3d.launch
需要启动一个带有map frame仿真器,推荐turtlebot3
roslaunch turtlebot3_gazebo turtlebot3_empty_world.launch
roslaunch turtlebot3_navigation turtlebot3_navigation.launch open_rviz:=false
原理说明见 blog