Pure-NumPy reimplementation of the NGA MATLAB SAR Toolbox.

pip install grdl-sartoolbox

Or install from source:

git clone https://github.com/geoint-org/grdl-sartoolbox.git
cd grdl-sartoolbox
pip install -e ".[dev]"

All dependencies are defined in pyproject.toml. Keep these files synchronized:

• pyproject.toml — source of truth for versions and dependencies
• requirements.txt — regenerate with pip freeze > requirements.txt after updating pyproject.toml
• .github/workflows/publish.yml — automated PyPI publication (do not edit manually)

1. Update the version field in pyproject.toml (semantic versioning: major.minor.patch)
2. Update requirements.txt if dependencies changed: pip install -e ".[all,dev]" && pip freeze > requirements.txt
3. Commit both files
4. Create a git tag: git tag v0.2.0 (matches version in pyproject.toml)
5. Push to GitHub: git push && git push --tags
6. Create a GitHub Release from the tag — this triggers the publish workflow automatically

The workflow:

• Builds wheels and source distribution using python -m build
• Publishes to PyPI with OIDC authentication (secure, no API keys)
• Artifacts are available at pypi.org/p/grdl-sartoolbox

See CLAUDE.md for detailed dependency management guidelines.

MIT License. See LICENSE for details.