Add SO3 chordal mean smoother

[FlorianPfaff]

Summary

• Add SO3ChordalMeanSmoother with SO(3) projection, chordal distance, weighted chordal mean, and local sequence smoothing.
• Export SO3ChordalMeanSmoother and the SO3CMSmoother alias from pyrecest.smoothers.
• Add focused tests for unweighted/weighted means, MATLAB-style (3, 3, n) stacks, local smoothing, projection, invalid weights, alias export, and backend-compatible list inputs.

Validation

• PYTHONPATH=src python -m pytest tests\smoothers -q
• PYTHONPATH=src PYRECEST_BACKEND=pytorch python -m pytest tests\smoothers\test_so3_chordal_mean_smoother.py -q
• PYTHONPATH=src PYRECEST_BACKEND=jax python -m pytest tests\smoothers\test_so3_chordal_mean_smoother.py -q
• PYTHONPATH=src python -m ruff check src\pyrecest\smoothers\so3_chordal_mean_smoother.py src\pyrecest\smoothers\__init__.py tests\smoothers\test_so3_chordal_mean_smoother.py

[github-actions]

✅MegaLinter analysis: Success

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ COPYPASTE	jscpd	yes		no	no	7.48s
✅ JSON	prettier	2	0	0	0	0.36s
✅ JSON	v8r	2		0	0	19.64s
✅ MARKDOWN	markdownlint	7	0	0	0	0.98s
✅ MARKDOWN	markdown-table-formatter	7	0	0	0	0.3s
✅ PYTHON	bandit	419		0	0	6.3s
✅ PYTHON	black	419	2	0	0	9.91s
✅ PYTHON	flake8	419		0	0	3.58s
✅ PYTHON	isort	419	2	0	0	0.78s
✅ PYTHON	mypy	419		0	0	5.52s
✅ PYTHON	pylint	419		0	0	121.85s
✅ PYTHON	ruff	419	2	0	0	0.08s
✅ REPOSITORY	checkov	yes		no	no	15.1s
✅ REPOSITORY	gitleaks	yes		no	no	7.48s
✅ REPOSITORY	git_diff	yes		no	no	0.03s
✅ REPOSITORY	secretlint	yes		no	no	4.31s
✅ REPOSITORY	syft	yes		no	no	2.7s
✅ REPOSITORY	trivy-sbom	yes		no	no	3.63s
✅ REPOSITORY	trufflehog	yes		no	no	18.47s
✅ YAML	prettier	4	0	0	0	0.5s
✅ YAML	v8r	4		0	0	23.36s
✅ YAML	yamllint	4		0	0	0.45s

See detailed reports in MegaLinter artifacts

Your project could benefit from a custom flavor, which would allow you to run only the linters you need, and thus improve runtime performances. (Skip this info by defining FLAVOR_SUGGESTIONS: false)

• Documentation: Custom Flavors
• Command: npx mega-linter-runner@9.4.0 --custom-flavor-setup --custom-flavor-linters PYTHON_PYLINT,PYTHON_BLACK,PYTHON_FLAKE8,PYTHON_ISORT,PYTHON_BANDIT,PYTHON_MYPY,PYTHON_RUFF,COPYPASTE_JSCPD,JSON_V8R,JSON_PRETTIER,MARKDOWN_MARKDOWNLINT,MARKDOWN_MARKDOWN_TABLE_FORMATTER,REPOSITORY_CHECKOV,REPOSITORY_GIT_DIFF,REPOSITORY_GITLEAKS,REPOSITORY_SECRETLINT,REPOSITORY_SYFT,REPOSITORY_TRIVY_SBOM,REPOSITORY_TRUFFLEHOG,YAML_PRETTIER,YAML_YAMLLINT,YAML_V8R

Show us your support by starring ⭐ the repository

[github-actions]

Test Results

    12 files      12 suites   4h 17m 31s ⏱️
 1 185 tests  1 185 ✅     0 💤 0 ❌
14 584 runs  11 068 ✅ 3 516 💤 0 ❌

Results for commit 4c2a2ee.