the catkin workspace of the wheeled robot lesson
containning the following part (all in src):
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ros tutorial (in begin and ros_service_examples)
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the moving control of robot, that is how fast the wheel move when recieve a keyboard signal (in course_agv_control)
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the tf tree between robot and the map (in course_agv_gazebo)
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the RRT and RRT* algorithm of path planning (in course_agv_nav)