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1 | initial version |
An ActionServer/ActionClient communicate with each other using 5 topics with specific names: cancel, feedback, goal, result, status.
That box is removing clutter from the diagram by not explicitly listing these 5 well-known topic names.
See http://wiki.ros.org/actionlib for a poorly-written description of actionlib.
2 | No.2 Revision |
An ActionServer/ActionClient communicate with each other using 5 ros topics with specific names: cancel, feedback, goal, result, status.
That box is removing clutter from the diagram by not explicitly listing these 5 well-known topic names.
See http://wiki.ros.org/actionlib for a poorly-written description of actionlib.