3DVeIN: A Python Package for 3D Deformed Vein Inversion

3DVeIN (3D Deformed Vein Inversion) is a Python package for estimating finite deformation from 3D deformed vein set orientations using a Mohr-cyclide-based inverse analysis. This archive accompanies the manuscript "A Mohr-Cyclide Construction for Finite Deformation and its Application to 3D Analysis of Deformed Vein Sets," submitted to Journal of Geophysical Research: Solid Earth. The archive includes: 1. An installable Python package for 3D deformed vein inversion.2. A Jupyter notebook for analyzing field datasets and reproducing the Hongusan results presented in the manuscript.3. A notebook for reproducing the manuscript model database and generating user-defined model databases.4. A notebook for 3D forward modeling of deformed vein sets.5. A notebook for Mohr-cyclide visualization.6. A notebook implementing the 2D deformed vein sets analysis described by Soejima and Wallis (2022).7. Field datasets and a precomputed model database.8. Documentation for Windows and macOS users. This version substantially reorganizes and expands the scripts archived in the original Zenodo release. The code is provided as an installable Python package with documented notebooks, bundled example data, and automated tests to improve accessibility and reproducibility.