LocationTech JTS Topology Suite™ 1.19.0 Release Review

Functionality Improvements

• Improve GeometryFixer behaviour for holes outside polygons (#772)
• Add ConstrainedDelaunayTriangulator and PolygonTriangulator (#775)
• Add Tri data structure for representing triangulations (#775)
• Simplify and fix logic of BufferParameters.setQuadSegs (#778)
• Improve KdTree query code to avoid recursion (#779)
• Add KdTree seeding toSnappingNoder (#780)
• Add DiscreteFrechetDistance (#764, #783)
• Add GeometryFixer option to preserve Multi geometry types when collapses occur (#791)
• Make QuadTree thread-safe (#792)
• Allow specifying a fixed PrecisionModel via grid size (#804)
• Add OffsetCurve class (#810, #816)
• Add ConcaveHull class for points (#823, #829)
• Improve Densifier to interpolate Z values (#835)
• Add support for GeoJSON Feature and FeatureCollection types (#837)
• Add WKTReader.setFixStructure to fix WKT input (#848)
• Add PolygonHull class (#861)

Bug Fixes

• Fix WKTReader geometry typename parsing (#786)
• Fix CoordinateArrays.reverse to handle zero-length arrays #787
• Fix GeometryFixer to appply isKeepCollapsed flag to GeometryCollection elements (#790)
• Fix RectangleIntersects to handle XYZM geometry (#794)
• Fix various operations to handle XYZM geometry (#795)
• Fix SnapRoundingNoder to use tolerance in noding (also fixes GeometryPrecisionReducer) (#802)
• Fix MaximumInscribedCircle to avoid infinite-looping on flat collapsed input (#807)
• Add OverlayNG result area heuristic check (#812)
• Fix the buffers generated for mitred joins (#818)
• Fix WKTReader to produce correct XY coordinate dimension for POLYGON EMPTY (#828)
• Fix RelateOp for a snapped line boundary point (#839)
• Fix IsValidOp for repeated node points (#845)
• Fix IsSimpleOp for repeated endpoints (#851)