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position_controllers
This is a collection of controllers that work using the “position” joint command interface but may accept different joint-level commands at the controller level, e.g. controlling the position on a certain joint to achieve a set velocity.
The package contains the following controllers:
position_controllers/JointGroupPositionController
This is specialization of the forward_command_controller that works using the “position” joint interface.
ROS 2 interface of the controller
Topics
- ~/commands (input topic) [std_msgs::msg::Float64MultiArray]
Joints’ position commands
Parameters
This controller overrides the interface parameter from forward_command_controller, and the
joints
parameter is the only one that is required.
An example parameter file is given here
controller_manager:
ros__parameters:
update_rate: 100 # Hz
position_controller:
type: position_controllers/JointGroupPositionController
position_controller:
ros__parameters:
joints:
- slider_to_cart