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rviz_marker_publisher

This is a simple ROS publisher for MarkerArray in Rviz. The current version can publish multiple spherical markers.

(1) Obstacles Generation

Step 1) Modify "Marker Array Setting" in gen_obstacles.py

  • radius: the radius of each sphere
  • num_obstacles: the number of spheres that you are going to visualise
  • range_obstacles: the Cartesian range where the spheres will be uniform-randomly appeared. It should be such that (x_min, x_max, y_min, y_max, z_min, z_max)

Step 2) Mode selection

  • mode:
    • Manual mode allows to modify the obstacles' positions by pressing w, x, a, d, q, z.
    • RandomMove makes the obstacles slightly move randomly.
    • TrajectoryTest mode is for the test in Sec V-B (a.k.a. crossbar test).

Step 3) Run the following:

rosrun rviz_marker_publisher gen_obstacles.py

The result MarkerArray will be published via visualization_marker_array topic.

(2) Virtual teleoprator

Step 1) Select the control mode (mode) in virtual_teleoprator.py

  • mode == 1: "8"-shaped periodic moving. (Go to Step 2-1)
  • mode == 2: Random movement (Go to Step 2-2) -- NOTE: This includes the function of gen_obstacles.py, thus it is self-contained, i.e. you do not need to run gen_obstacles.py separately. This mode is for automatically collecting data for the paper.
  • mode == 3 : Trajectory test (Go to Step 2-3)

Step 2-1) Periodic movement setting for Mode 1

  • xyzrpy: (m/s) XYZ velocity // (rad) Amplitudes of Roll Pitch Yaw in End Effector Frame
  • moving_period: Repeatative moving period (sec)

Step 2-2) Random movement setting for Mode 2

  • right_range: the range where each random target pose will be generated
  • max_del_x: a sense of velocity of the movement
  • moving_period_mode_two: Repeatative moving period (sec)

Step 2-3) Up and down movement for Mode 3

  • xyzrpy_mode3: (m/s) XYZ velocity // (rad) Amplitudes of Roll Pitch Yaw in End Effector Frame
  • moving_period_mode3: Repeatative moving period (sec)

Step 2) Run the follwing:

rosrun rviz_marker_publisher virtual_teleoperator.py

Example

See the video (https://youtu.be/Ki-miu0sTp4), which uses RandomMove for gen_obstacles.py and mode = 2 for virtual_teleoprator.py

(3) Encapsulatting gazebo objects (encapsulation.py)

Step 1) Define object keywords and capsule sizes to encapsulate them

  • keywords_of_object_to_encapsulate: a list of the keyword strings (e.g. If you put "object" and any gazebo model object whose name includes this keyword will be encapsulated)
  • capsules_sizes: a list of the capsule sizes for each keyword. NOTE: Currently, only ellipsoid capsule is available thus the capsule size is supposed to be its diameter for each axis.
  • robot_height: the z-axis offset between the IK solver's coordination frame and the Gazebo environment's frame.

Step 2) Run the following:

rosrun rviz_marker_publisher encapsulation.py

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A simple ROS publisher for MarkerArray

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