LocationTech JTS Topology Suite 1.17.0 Release Review

API Changes

• Change Polygon getExteriorRing and getInteriorRingN accessors to return LinearRing.
  • This is a binary incompatible change to the method signature. Recompilation is necessary. No source code changes are required.

Functionality Improvements

• Added IndexedFacetDistance.isWithinDistance
• Added OrdinateFormat to ensure that ordinate text output is accurate and consistent
• Added Triangle.circumcentreDD
• Added DD.determinant methods
• Added Envelope methods getDiameter, copy, disjoint (#483)
• Added Intersection class, refactored library to use it (#468)
• Added CascadedPolygonUnion union-by-buffer on error capability (#470)
• Added HalfEdge support for direction points (#479)
• Added CoordinateList.toCoordinateArray(isForward) (#482)
• Addded HPRtree Hilbert Packed R-tree (#494)
• Added VariableBuffer class for computing varying-distance buffers (#495)
• Added LineSegment.reflect method (#495)
• Added MaximumInscribedCircle algorithm (#530)
• Added LargestEmptyCircle algorithm (#530)

Performance Improvements

• Improve performance of UniqueCoordinateFilter (#422)
• Improve performance of Polygonizer (#431)
• Avoid use of ArrayList in MonotoneChain builders
• Add DistanceOp line-line envelope short-circuit optimizations (#534)

Bug Fixes

• Fix PackedCoordinateSequence.Float construction methods (#379, #381)
• Fix bug in Quadtree.ensureExtent (#416)
• Fix bugs in LinearLocation endpoint handling (#421)
• Fix bug in MinimumBoundingCircle maximum diameter algorithm, and provide method for it
• Improve robustness of CascadedPolygonUnion by adding OverlapUnion
• Fix bug in HalfEdge.insert method which caused CCW order not to be preserved in some cases
• Fix generation of Voronoi diagrams for cases with sites in a square (#447)
• Fix use of clipping envelope in VoronoiDiagramBuilder
• Fix infinite loop on empty input in IndexedPointInAreaLocator and SortedPackedIntervalRTree (#462)
• Fix WKT parsing in Turkish locale (#456)
• Improve accuracy of LineSegment.lineIntersection (#468)
• Fix Distance3DOp coordinate ordering (#480)
• Fix Geometry.reverse() to have consistent behaviour and to copy all fields (#513)
• Fix MinimumBoundingCircle.farthestPoints to work correctly (#522 and #533)
• Fix DistanceOp handling of geometry collections with empty components (#524)

JTS TestBuilder

Functionality Improvements

• Add a UI to run external commands
• Allow creating additional view layers
• Add map view title, legend and border options
• Support points in Reveal Topology mode

JTS TestRunner

Functionality Improvements

• Allow test files/dirs to be specified as free args
• Only load `.xml` files from directories

JtsOp

• Added command-line utility to run JTS operations