petercorke / petercorke/robotics-toolbox-python

mimic joint support

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enhancement
Dominant language
C++
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Description

The xacro file I have for a custom robot is ROS has a mimic joint where it inverts joint motion for its counterpart. I'm trying to use the same robot model here and try the mmc and resolved rate motion planners. Is there a support for mimic joints? So far, I can call rtb.model.myrobot() and spawn the robot in the swift simulator. When I try the RRMP, however, it seems not to care about the mimic joint. Any suggestions?

thanks

Contributor guide

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the issue with rtb.model.myrobot() in the Swift simulator, then compare the MMC and resolved-rate motion planners on the custom robot model. Check how the xacro mimic joint inverts its counterpart's motion and determine the expected planner behavior. Done means mimic-joint constraints are respected by the relevant planners.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
robotics
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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