Class Densifier.DensifyTransformer

java.lang.Object
org.locationtech.jts.geom.util.GeometryTransformer
org.locationtech.jts.densify.Densifier.DensifyTransformer
Enclosing class:
Densifier

static class Densifier.DensifyTransformer extends GeometryTransformer
  • Field Details

    • distanceTolerance

      double distanceTolerance
  • Constructor Details

    • DensifyTransformer

      DensifyTransformer(double distanceTolerance)
  • Method Details

    • transformCoordinates

      protected CoordinateSequence transformCoordinates(CoordinateSequence coords, Geometry parent)
      Description copied from class: GeometryTransformer
      Transforms a CoordinateSequence. This method should always return a valid coordinate list for the desired result type. (E.g. a coordinate list for a LineString must have 0 or at least 2 points). If this is not possible, return an empty sequence - this will be pruned out.
      Overrides:
      transformCoordinates in class GeometryTransformer
      Parameters:
      coords - the coordinates to transform
      parent - the parent geometry
      Returns:
      the transformed coordinates
    • transformPolygon

      protected Geometry transformPolygon(Polygon geom, Geometry parent)
      Overrides:
      transformPolygon in class GeometryTransformer
    • transformMultiPolygon

      protected Geometry transformMultiPolygon(MultiPolygon geom, Geometry parent)
      Overrides:
      transformMultiPolygon in class GeometryTransformer
    • createValidArea

      private Geometry createValidArea(Geometry roughAreaGeom)
      Creates a valid area geometry from one that possibly has bad topology (i.e. self-intersections). Since buffer can handle invalid topology, but always returns valid geometry, constructing a 0-width buffer "corrects" the topology. Note this only works for area geometries, since buffer always returns areas. This also may return empty geometries, if the input has no actual area.
      Parameters:
      roughAreaGeom - an area geometry possibly containing self-intersections
      Returns:
      a valid area geometry