Add Polygonal Coverage validation, gap finding, union

[dr-jts]

Adds the package org.locationtech.jts.coverage containing classes for operating on Polygonal Coverages:

• CoverageValidator determines if a set of polygons forms a valid coverage and identifies locations of invalidity (and optionally narrow gaps)
• CoveragePolygonValidator determines if a single polygons forms a valid coverage with adjacent polygons, and identifies locations of invalidity (and optionally narrow gaps)
• CoverageGapFinder detects narrow gaps which form holes in a polygonal coverage
• CoverageUnion performs an efficient union of a set of polygons which form a coverage

An invalid polygonal coverage with overlaps and gaps

[micycle1]

Is a coverage FixGaps feature (ala CoverageCleaner) in the works?

Also, it seems the JTS 1.20.0-SNAPSHOT Maven artifact does not include this and later commits.

[dr-jts]

Is a coverage FixGaps feature (ala CoverageCleaner) in the works?

Yes, hopefully some kind of coverage cleaning algorithm will be developed soon.

[dr-jts]

Also, it seems the JTS 1.20.0-SNAPSHOT Maven artifact does not include this and later commits.

Do you mean when you build locally?

[micycle1]

Also, it seems the JTS 1.20.0-SNAPSHOT Maven artifact does not include this and later commits.

Do you mean when you build locally?

The artifact that is pulled down from https://repo.eclipse.org/content/repositories/jts-snapshots.

[dr-jts]

Also, it seems the JTS 1.20.0-SNAPSHOT Maven artifact does not include this and later commits.

Do you mean when you build locally?

The artifact that is pulled down from https://repo.eclipse.org/content/repositories/jts-snapshots.

When I pull down the latest SNAPSHOT archive I see the following files, which looks correct?

   creating: org/locationtech/jts/coverage/
  inflating: org/locationtech/jts/coverage/CoverageBoundarySegmentFinder.class  
  inflating: org/locationtech/jts/coverage/CoverageEdge.class  
  inflating: org/locationtech/jts/coverage/CoverageGapFinder.class  
  inflating: org/locationtech/jts/coverage/CoveragePolygonValidator$CoverageRingSegment.class  
  inflating: org/locationtech/jts/coverage/CoveragePolygonValidator.class  
  inflating: org/locationtech/jts/coverage/CoverageRing.class  
  inflating: org/locationtech/jts/coverage/CoverageRingEdges.class  
  inflating: org/locationtech/jts/coverage/CoverageSimplifier.class  
  inflating: org/locationtech/jts/coverage/CoverageUnion.class  
  inflating: org/locationtech/jts/coverage/CoverageValidator.class  
  inflating: org/locationtech/jts/coverage/InvalidSegmentDetector.class  
  inflating: org/locationtech/jts/coverage/TPVWSimplifier$1.class  
  inflating: org/locationtech/jts/coverage/TPVWSimplifier$Edge.class  
  inflating: org/locationtech/jts/coverage/TPVWSimplifier$EdgeIndex.class  
  inflating: org/locationtech/jts/coverage/TPVWSimplifier.class  
  inflating: org/locationtech/jts/coverage/VertexCounter.class  

[micycle1]

When I pull down the latest SNAPSHOT archive I see the following files, which looks correct?

Actually, my bad. I was looking for the features in the wrong project whose .pom was still referencing 1.19.0..