LocationTech JTS Topology Suite 1.18.1

Version 1.18.1

Release Date: 02/26/2021

Functionality Improvements

• Check for invalid polygonal geometry before fixing in DouglasPeuckerSimplifier, VWSimplifier, Densifier (#656)
• Add Coordinate and subclasses create() methods (#637)
• Ensure OverlayNG input line order is preserved (#665)
• Add UnaryUnionNG functions that accept Collections (#669 and #670)
• Switch to using compact-SRID WKB format (#664)
• Improve WKBReader error checking (#675)
• Improve Densifier splitting algorithm to create longer segments (#677)
• Allow constructing invalid Polygons and LinearRings with only 3 vertices (#682)
• Ensure invalid 3-point polygons and rings are handled correctly (#683)
• Fix GeoJSONReader to parse null and empty coordinates as empty geometry (#687)
• Fix GeoJSONWriter to emit empty coordinates array for empty point and linestring (#688)
• Add MaximumInscribedCircle check for invalid tolerance, to avoid infinite loops (#696)
• Add GeoJsonWriter.setForceCCW method to emit polygons with CCW orientation, as per GeoJSON specification (#694)

Bug Fixes

• Ensure Densifier creates Coordinates with same class as input (#637)
• Fix Relate for cases with closed linear geometry and empty geometry (#671)
• Fix Densifier to avoid splitting segments with length equal to distance tolerance (#676)
• Fix Geometry.compareTo to test polygon holes (#678)
• Fix OverlayNG handling of polygons with interior flat lines (#685)
• Fix Polygonizer to avoid NPE on invalid input (#692)

WKBDump

• Added utility to dump out formatted WKB (#673)