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Changelog

All notable changes to this project will be documented in this file. The format is based on Keep a Changelog.

[Unreleased]

[2.1.0] - 2026-06-07

  • Accept line layers as the rotation target in the Processing algorithm (the interactive map tool already supported both). Breaking: the Processing parameter POLYGON_LAYER has been renamed to TARGET_LAYER (saved models referencing the old key must be updated); user-facing labels switch from "Polygon layer" / "Skip multipolygons" to "Target layer" / "Skip multipart features"
  • Mark the plugin as QGIS 4 compatible (qgisMaximumVersion=4.99) and fully scope PyQt6-required Qt enums in the map tool and settings dialog so they work on QGIS 4 / Qt 6
  • Accept polygon layers as the rotation reference in both the Processing algorithm and the interactive map tool; polygon boundary rings are treated as polylines for closest-segment math. Breaking: the Processing parameter LINE_LAYER has been renamed to REFERENCE_LAYER (saved models referencing the old key must be updated). The map tool prefers a line under the click when both a line and polygon overlap.
  • Rename the plugin to "Parallelizer" and remove the Processing-toolbox group, so the algorithm appears at the toolbox root instead of under "Algorithms for vector layers"

[2.0.0] - 2026-06-06

  • Add an interactive map tool: pick a reference line on the canvas, then click — or drag a rectangle — to rotate individual line/polygon features (or every feature in the rectangle across editable visible layers) parallel to it
  • Add a Settings dialog (toggle "Rotate by longest segment"); choices persist via QSettings
  • Reconcile reference and target geometries when layers are in different CRSes
  • Register a "Polygons Parallel to Line" toolbar and Vector-menu entry

[1.2.0] - 2026-06-01

  • Enhance polygon rotation logic and geometry validation
  • Fix no_multi regression
  • Test against QGIS 4.0
  • Automate releases via tag-triggered qgis-plugin-ci pipeline

[1.1.0] - 2025-06-13

  • Enhance UI text readability
  • Skip rotation when an angle is close to zero to avoid unnecessary operations and wrong "_rotated" values
  • Handle polygon vertex duplicates and internal rings properly
  • Update test cases to cover new edge cases

[1.0.0] - 2023-11-19

  • Add QGIS 3 support
  • Add tests
  • Fix bugs

[0.3.0] - 2017-04-05

  • Migrate to Processing algorithms; full refactoring
  • Major performance improvements
  • Add option to write all or only selected polygons to the new layer
  • Add option to rotate or skip multipolygons
  • Process each polyline of a multipolyline as a separate line
  • Avoid duplicating the "_rotated" field if it already exists

[0.2.1] - 2017-03-14

  • Add Russian and Ukrainian translations

[0.2.0] - 2016-04-07

  • Major performance improvements via spatial index and built-in PyQGIS methods
  • Add progress bar
  • Add option to rotate only selected polygons
  • Add "rotated" field to the polygon layer (value 1 for rotated polygons)
  • New icon
  • English-only code comments

[0.1.0] - 2016-03-31

  • Initial release