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Description

Adds a position threshold check, resolving 3 TODO error comments, to ensure the robot's end effector is within a specified distance from the target position before transitioning between states in the pick and lift state machine. Improves the precision of state transitions and helps prevent premature actions during object manipulation. I.e, the threshold ensures the robot is "close enough" to the target position before proceeding, reducing the likelihood of failed grasps or incorrect movements.

PR adapted from #1273 by @DorsaRoh.

Type of change

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)

Checklist

  • I have run the pre-commit checks with ./isaaclab.sh --format
  • I have made corresponding changes to the documentation
  • My changes generate no new warnings
  • I have added tests that prove my fix is effective or that my feature works
  • I have updated the changelog and the corresponding version in the extension's config/extension.toml file
  • I have added my name to the CONTRIBUTORS.md or my name already exists there

@kellyguo11 kellyguo11 changed the title Fixes position threshold check for state transitions Adds position threshold check for state transitions Dec 15, 2024
@kellyguo11 kellyguo11 merged commit 8ddc483 into isaac-sim:main Dec 15, 2024
3 of 4 checks passed
SevenFo pushed a commit to SevenFo/IsaacLab that referenced this pull request May 19, 2025
# Description

Adds a position threshold check, resolving 3 TODO error comments, to
ensure the robot's end effector is within a specified distance from the
target position before transitioning between states in the pick and lift
state machine. Improves the precision of state transitions and helps
prevent premature actions during object manipulation. I.e, the threshold
ensures the robot is "close enough" to the target position before
proceeding, reducing the likelihood of failed grasps or incorrect
movements.

PR adapted from isaac-sim#1273 by
@DorsaRoh.

## Type of change

<!-- As you go through the list, delete the ones that are not
applicable. -->

- Bug fix (non-breaking change which fixes an issue)
- New feature (non-breaking change which adds functionality)

## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [ ] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

<!--
As you go through the checklist above, you can mark something as done by
putting an x character in it

For example,
- [x] I have done this task
- [ ] I have not done this task
-->

---------

Signed-off-by: Kelly Guo <[email protected]>
Co-authored-by: DorsaRoh <[email protected]>
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2 participants