Comments (2)
When I tried to replace the trajectory, I observed an outage in trajectory tracing (row 3, row 4).
The attached plot:
- Series: red - sent trajectory to the controller, blue - real trajectory
- Figures: rows (1,2,3,4) - trajectory replacement iteration; columns (1,2) - positions, velocities
Even when I tried to remove the execution stop, I didn't observe any change. This is the reason that the controller in fact does not support the (the newer version) replacement operation and it stops execution entirely.
I will test it with the default hardware controller, thanks for your advice.
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Hi,
This is not possible with the current formulation of the trajectory controller in this package. The controller provided is simply emulating the behaviour of a simplified ROS Joint Trajectory Controller using the franka_ros_interface
developed for controlling the panda robot.
It looks like in the newer versions of ROS Joint Trajectory Controller, there is an option for trajectory replacement; I am not sure this does what you want. I am also not sure this will work with the custom action server defined in this package (I have not tested) because it was not originally designed to do this.
Also, note that you won't be able to load ROS's joint trajectory controller directly in this simulator because it conflicts with the custom hardware interface defined for this project. So to support ROS joint trajectory action instead of the custom joint trajectory, you will either have to load default hardware instead of the custom hardware in the robot description file and test it, or use a simpler simulator that uses default hardware interfaces and controllers such as panda_simulation and test if the 'trajectory replacement' feature is what you want. Alternatively, you can directly test in on the real robot as it loads ROS joint trajectory action by default if you are using franka_ros
or franka_ros_interface
.
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