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🟡 Changes recommended
Copied or moved 3D projects retain a stale project_path, allowing calibration to overwrite the original project's config and undistortion to silently use its calibration.
1 open issue
What changed in this PR
This PR addresses #3585 by loading 3D project configurations as plain YAML instead of validating them against the 2D ProjectConfig schema.
Changes:
- Switch 3D calibration, triangulation, visualization, and matched-frame extraction to
read_plainconfig. - Update the 3D example to use the same reader.
- Add regression tests for 3D configuration loading and preservation of configuration values.
| File | Description |
|---|---|
tests/test_3d_project_config.py |
Tests configuration loading across five 3D entry points and checks configuration preservation. |
tests/generate_training_dataset/test_frame_extraction.py |
Adds coverage for loading a 3D configuration in match mode. |
examples/testscript_3d.py |
Uses plain configuration loading in the 3D example. |
deeplabcut/pose_estimation_3d/triangulation.py |
Switches triangulation and point undistortion to plain reads. |
deeplabcut/pose_estimation_3d/plotting3D.py |
Switches 3D labeled-video creation to plain reads. |
deeplabcut/pose_estimation_3d/camera_calibration.py |
Switches calibration and undistortion checks to plain reads. |
deeplabcut/generate_training_dataset/frame_extraction.py |
Uses a plain read for the 3D configuration in match mode. |
Review effort: Balanced
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deruyter92
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@C-Achard thanks for the hotfix. Good solution. I agree with co-pilot that the missing config path repair was a regression (it risks edits to the wrong project in case a project is copied).
Addressed that in a follow-up commit. Let's merge this PR before 3.0.3 release.

Fixes #3585.
Problem
The 3D entry points load the 3D
config.yamlwithread_config, which validates it as a 2DProjectConfig(extra fields forbidden).