Release 3.14.0

2025-08-21

• New things:

  • Add clustering functions to C API (GH-1154, Dan Baston)
  • Ported LineDissolver (Paul Ramsey)
  • Ported CoverageCleaner (Paul Ramsey)
  • Add GEOSGridIntersectionFractions to C API (GH-1295, Dan Baston)
  • Add functions to interrupt processing in a specific thread/context (GH-803, Dan Baston)
  • Add "geos-targets.cmake" to build tree to allow building other software against
    GEOS build without installing first (GH-1269, Dan Baston)
  • Add GEOSCoordSeq_hasZ, GEOSCoordSeq_hasM (GH-1256, Aurele Ferotin)
  • Add GEOSCoordSeq_createWithDimensions, GEOSCoordSeq_setM, GEOSCoordSeq_getM (GH-1246, Dan Baston)
  • Add GEOSGeoJSONWriter_setOutputDimension (GH-1260, Aurele Ferotin)
  • Add GEOSGeom_transformXYZ (GH-1157, Aurele Ferotin)
  • Add GEOSisSimpleDetail (GH-1296, Dan Baston)

• Breaking Changes:

  • C++17 is now required (GH-1144)
  • Stricter WKT parsing (GH-1241, @freemine)
  • GEOSCoordSeq_setOrdinate returns an error if the sequence does not have the specified ordinate (GH-1245, Dan Baston)

• Fixes/Improvements:

  • Fix ConcaveHullOfPolygons nested shell handling (GH-1169, Martin Davis)
  • Fix RelateNG for computing IM for empty-nonempty cases (Martin Davis)
  • Fix TopologyPreservingSimplifier/TaggedLineString to avoid jumping components (JTS-1096, Martin Davis)
  • Fix WKTWriter for small precisions and with trim enabled (GH-1199, Mike Taves)
  • Fix BufferOp to increase length of segments removed by heuristic (GH-1200, Martin Davis)
  • Improve RelateNG performance for A/L cases in prepared predicates (GH-1201, Martin Davis)
  • Improve OffsetCurve to handle mitre joins for polygons (Martin Davis)
  • Fix inscribed circle initialization (GH-1225, Benoit Maurin)
  • Fix overlay heuristic for GeometryCollections with empty elements (GH-1229, Martin Davis)
  • Add ring buffer hole removal heuristic (GH-1233, Martin Davis)
  • Fix buffer element erosion for negative distance and remove overlay deps (GH-1239, Martin Davis)
  • Fix OverlayNG coordinate dimension handling for EMPTY geometries (GH-1258, Martin Davis)
  • Fix DepthSegment comparison logic (really this time) (GH-1266, Martin Davis)
  • Change CoverageGapFinder to return polygons (Martin Davis)
  • Update DiscreteFrechetDistance to new algorithm (GH-1274, Paul Ramsey)

Release 3.13.1

2024-03-03

• Fixes/Improvements:
  • Fix ConcaveHullOfPolygons nested shell handling (GH-1169, Martin Davis)
  • Fix RelateNG for computing IM for empty-nonempty cases (Martin Davis)
  • Fix LineString->getPoint(n) for M geometries (GH-1191, @hsieyuan)
  • Fix TopologyPreservingSimplifier/TaggedLineString to avoid jumping components (JTS-1096, Martin Davis)
  • Fix WKTWriter for small precisions and with trim enabled (GH-1199, Mike Taves)
  • Fix BufferOp to increase length of segments removed by heuristic (GH-1200, Martin Davis)
  • Improve RelateNG performance for A/L cases in prepared predicates (GH-1201, Martin Davis)
  • Improve OffsetCurve to handle mitre joins for polygons (Martin Davis)
  • Fix inscribed circle initialization (GH-1225, Benoit Maurin)
  • Fix overlay heuristic for GeometryCollections with empty elements (GH-1229, Martin Davis)
  • Add ring buffer hole removal heuristic (GH-1233, Martin Davis)
  • Fix buffer element erosion for negative distance and remove overlay deps (GH-1239, Martin Davis)

Release 3.12.3

2025-03-03

• Fixes:
  • TopologyPreservingSimplifier: fix to remove ring endpoints safely (GH-1110, Martin Davis)
  • Centroid: Fix crash on polygons with empty holes (GH-1075, Dan Baston)
  • MinimumClearance: Fix crash on NaN inputs (GH-1082, Dan Baston)
  • GEOSLineSubstring: Fix crash on NaN length fractions (GH-1088, Dan Baston)
  • GEOSRelatePatternMatch: Fix crash on invalid DE-9IM pattern (GH-1089, Dan Baston)
  • Fix ConcaveHullOfPolygons nested shell handling (GH-1169, Martin Davis)
  • GEOSConcaveHullOfPolygons, avoid crash on zero-area input (GH-1071, Dan Baston)
  • DouglasPeuckerLineSimplifier, avoid crash with Point input and NaN tolerance (GH-1078, Dan Baston)
  • GEOSLineSubstring, avoid crash with NaN length fraction (GH-1077, Dan Baston)
  • MinimumClearance, avoid crash on NaN inputs (GH-1079, Dan Baston)
  • Fix LineString->getPoint(n) for M geometries (GH-1191, @hsieyuan)
  • Fix TopologyPreservingSimplifier/TaggedLineString to avoid jumping components (JTS-1096, Martin Davis)
  • Fix BufferOp to increase length of segments removed by heuristic (GH-1200, Martin Davis)
  • Improve OffsetCurve to handle mitre joins for polygons (Martin Davis)
  • Fix inscribed circle initialization (GH-1225, Benoit Maurin)
  • Fix overlay heuristic for GeometryCollections with empty elements (GH-1229, Martin Davis)
  • Add ring buffer hole removal heuristic (GH-1233, Martin Davis)
  • Fix buffer element erosion for negative distance and remove overlay deps (GH-1239, Martin Davis)

Release 3.11.5

2025-03-03

• Fixes/Improvements:
  • Centroid: Fix crash on polygons with empty holes (GH-1075, Dan Baston)
  • MinimumClearance: Fix crash on NaN inputs (GH-1082, Dan Baston)
  • GEOSRelatePatternMatch: Fix crash on invalid DE-9IM pattern (GH-1089, Dan Baston)
  • Port TopologyPreservingSimplifier fixes (GH-986, GH-1107, GH-857, GH-784, GH-1070, Paul Ramsey)
  • Fix ConcaveHullOfPolygons nested shell handling (GH-1169, Martin Davis)
  • GEOSConcaveHullOfPolygons, avoid crash on zero-area input (GH-1071, Dan Baston)
  • MinimumClearance, avoid crash on NaN inputs (GH-1079, Dan Baston)
  • Fix TopologyPreservingSimplifier/TaggedLineString to avoid jumping components (JTS-1096, Martin Davis)
  • Fix BufferOp to increase length of segments removed by heuristic (GH-1200, Martin Davis)
  • Add ring buffer hole removal heuristic (GH-1233, Martin Davis)

Release 3.10.7

2025-03-03

• Fixes/Improvements:
  • Intersection: change to using DoubleDouble computation to improve robustness (GH-937, Martin Davis)
  • Fix build on Illumus (GH-971)
  • PointOnSurface crashes with a collection containing a empty linestring (GH-1002, Paul Ramsey)
  • Fix IsSimpleOp for MultiPoint with empty element (GH-1005, Martin Davis)
  • Fix PreparedPolygonContains for GC with MultiPoint (GH-1008, Martin Davis)
  • Fix reading WKT with EMPTY token with white space (GH-1025, Mike Taves)
  • Centroid: Fix crash on polygons with empty holes (GH-1075, Dan Baston)
  • MinimumClearance: Fix crash on NaN inputs (GH-1082, Dan Baston)
  • GEOSRelatePatternMatch: Fix crash on invalid DE-9IM pattern (GH-1089, Dan Baston)

Release 3.9.6

2025-03-03

• Bug fixes / improvements:
  • Intersection: change to using DoubleDouble computation to improve robustness (GH-937, Martin Davis)
  • Centroid: Fix crash on polygons with empty holes (GH-1075, Dan Baston)
  • GEOSRelatePatternMatch: Fix crash on invalid DE-9IM pattern (GH-1089, Dan Baston)

Release 3.13.0

2024-09-06

• New things:

  • Add Angle::sinCosSnap to avoid small errors, e.g. with buffer operations (GH-978, Mike Taves)
  • Add classes for curved geometry types: CircularString, CompoundCurve, CurvedPolygon, MultiCurve,
    MultiSurface (GH-1046, Dan Baston/German QGIS users group/Canton of Basel-Landschaft/Canton of Zug)
  • Support curved geometry types in WKT/WKB readers/writers (GH-1046, GH-1104, GH-1106, Dan Baston)
  • 3D read and write support for GeoJSON (GH-1150, Oreilles)
  • Port of RelateNG locationtech/jts#1052 (Martin Davis, Paul Ramsey)
    • Rewrite of boolean predicates and relate matrix calculations
    • "Prepared" mode now available for all predicates and relate matrix
    • CAPI functions GEOSPreparedRelate and GEOSPreparedRelatePattern expose new functionality
    • CAPI implementations of GEOSPreparedTouches, etc, that were previously defaulting
      into non-prepared implementations now default into the RelateNG prepared implementation
    • Prepared implementations for Intersects, Covers, still use the older implementations
    • https://lin-ear-th-inking.blogspot.com/2024/05/jts-topological-relationships-next.html
    • https://lin-ear-th-inking.blogspot.com/2024/05/relateng-performance.html

• Breaking Changes

  • Zero-length linestrings (eg LINESTRING(1 1, 1 1)) are now treated as equivalent to points (POINT(1 1)) in boolean predicates
  • CMake 3.15 or later is requried (GH-1143, Mike Taves)

• Fixes/Improvements:

  • WKTReader: Points with all-NaN coordinates are not considered empty anymore (GH-927, Casper van der Wel)
  • WKTWriter: Points with all-NaN coordinates are written as such (GH-927, Casper van der Wel)
  • ConvexHull: Performance improvement for larger geometries (JTS-985, Martin Davis)
  • Distance: Improve performance, especially for point-point distance (GH-1067, Dan Baston)
  • Intersection: change to using DoubleDouble computation to improve robustness (GH-937, Martin Davis)
  • Fix LargestEmptyCircle to respect polygonal obstacles (GH-939, Martin Davis)
  • Fix WKTWriter to emit EMPTY elements in multi-geometries (GH-952, Mike Taves)
  • Fix IncrementalDelaunayTriangulator to ensure triangulation boundary is convex (GH-953, Martin Davis)
  • Fix PreparedLineStringDistance for lines within envelope and polygons (GH-959, Martin Davis)
  • Improve scale handling for PrecisionModel (GH-956, Martin Davis)
  • Fix error in CoordinateSequence::add when disallowing repeated points (GH-963, Dan Baston)
  • Fix WKTWriter::writeTrimmedNumber for big and small values (GH-973, Mike Taves)
  • Fix InteriorPointPoint to handle empty elements (GH-977, Martin Davis)
  • Fix TopologyPreservingSimplifier endpoint handling to avoid self-intersections (GH-986, Martin Davis)
  • Fix spatial predicates for MultiPoint with EMPTY (GH-989, Martin Davis)
  • Fix DiscreteHausdorffDistance for LinearRing (GH-1000, Martin Davis)
  • Fix IsSimpleOp for MultiPoint with empty element (GH-1005, Martin Davis)
  • Fix PreparedPolygonContains for GC with MultiPoint (GH-1008, Martin Davis)
  • Fix reading WKT with EMPTY token with white space (GH-1025, Mike Taves)
  • Fix buffer Inverted Ring Removal check (GH-1056, Martin Davis)
  • Add PointLocation.isOnSegment and remove LineIntersector point methods (GH-1083, Martin Davis)
  • Densify: Interpolate Z coordinates (GH-1094)
  • GEOSLineSubstring: Fix crash on NaN length fractions (GH-1088, Dan Baston)
  • MinimumClearance: Fix crash on NaN inputs (GH-1082, Dan Baston)
  • Centroid: Fix crash on polygons with empty holes (GH-1075, Dan Baston)
  • GEOSRelatePatternMatch: Fix crash on invalid DE-9IM pattern (GH-1089, Dan Baston)
  • CoveragePolygonValidator: add section performance optimization (GH-1099, Martin Davis)
  • TopologyPreservingSimplifier: fix to remove ring endpoints safely (GH-1110, Martin Davis)
  • TopologyPreservingSimplifier: fix stack overflow on degenerate inputs (GH-1113, Dan Baston)
  • DouglasPeuckerSimplifier: fix stack overflow on NaN tolerance (GH-1114, Dan Baston)
  • GEOSConcaveHullOfPolygons: Avoid crash on zero-area input (GH-1076, Dan Baston)

Release 3.12.2

2024-06-05

• Fixes:
  • Intersection: change to using DoubleDouble computation to improve robustness (GH-937, Martin Davis)
  • Fix build on Illumus (GH-971)
  • Buffer mitre join error (GH-995, Paul Ramsey)
  • Return 2D empty linestring on GEOSGeom_createLineString(NULL) (GH-998, Paul Ramsey)
  • Fix DiscreteHausdorffDistance for LinearRing (GH-1000, Martin Davis)
  • PointOnSurface crashes with a collection containing a empty linestring (GH-1002, Paul Ramsey)
  • Fix IsSimpleOp for MultiPoint with empty element (GH-1005, Martin Davis)
  • Fix PreparedPolygonContains for GC with MultiPoint (GH-1008, Martin Davis)
  • Fix TopologyPreservingSimplifier to prevent jumping components (GH-1012, Martin Davis)
  • Fix reading WKT with EMPTY token with white space (GH-1025, Mike Taves)
  • Segfault in CoverageSimplify for non-polygonal inputs (GH-1039, Paul Ramsey)
  • Fix buffer Inverted Ring Removal check (GH-1056, Martin Davis)
  • CoveragePolygonValidator: add section performance optimization (GH-1099, Martin Davis)

Release 3.11.4

2024-06-05

• Fixes/Improvements:
  • Intersection: change to using DoubleDouble computation to improve robustness (GH-937, Martin Davis)
  • Fix IncrementalDelaunayTriangulator to ensure triangulation boundary is convex (GH-953, Martin Davis)
  • Fix build on Illumus (GH-971)
  • Fix DiscreteHausdorffDistance for LinearRing (GH-1000, Martin Davis)
  • PointOnSurface crashes with a collection containing a empty linestring (GH-1002, Paul Ramsey)
  • Fix IsSimpleOp for MultiPoint with empty element (GH-1005, Martin Davis)
  • Fix reading WKT with EMPTY token with white space (GH-1025, Mike Taves)

Release 3.10.6

2023-11-11

• Fixes/Improvements:
  • LargestEmptyCircle: enhance boundary to allow any polygonal geometry (GH-859, Martin Davis)
  • Build issues with gcc-13 (GH-863)
  • GeoJSONReader: Fix 2D empty geometry creation (GH-910, Mike Taves)
  • GEOSClipByRect: Fix case with POINT EMPTY (GH-913, Mike Taves)
  • Remove undefined behaviour in use of null PrecisionModel (GH-931, Jeff Walton)
  • PreparedLineStringIntersects: Fix incorrect result with mixed-dim collection with points (GH-774, Dan Baston)
  • Skip over testing empty distances for mixed collections (GH-979, Paul Ramsey)
  • Do not hide illegal argument exception in HeuristicOverlay (GH-925, Sandro Santilli)