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Break Point Index QGIS 4 compatibility

Not QGIS 4 ready Active

Not yet — the latest version declares max QGIS version 3.99.0, so it is not offered to QGIS 4 users.

The Break Point Index (BPI) tool is designed for landscape ecological analysis of patch shape and boundary configuration. It processes polygonal landscape patches by evaluating vertex angles along patch boundaries within user-defined angular thresholds, identifying breakpoints that reflect directional changes and geometric irregularities of landscape elements. The tool generates point features representing boundary complexity and computes polygon-level BPI values together with density metrics normalized by perimeter and area. Options to include or exclude inner rings (holes) and to customize angular thresholds allow flexible assessment of landscape pattern, configuration, and shape complexity.This tool may be used freely for research and educational purposes. If used in scientific publications, please cite: Csikós, N., Gudmann, A., Szabó, S. et al. The BreakPointIndex: a new angle-based landscape metric for quantifying patch shape and boundary complexity. Landsc Ecol (2026). https://doi.org/10.1007/s10980-026-02347-6

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Maintenance: Active = updated within 1 year, Quiet = 1–3 years, Likely abandoned = over 3 years.