com.vividsolutions.jts.operation.overlay

Class MaximalEdgeRing


  • public class MaximalEdgeRing
extends EdgeRing
    A ring of DirectedEdges which may contain nodes of degree > 2. A MaximalEdgeRing may represent two different spatial entities:
    • a single polygon possibly containing inversions (if the ring is oriented CW)
    • a single hole possibly containing exversions (if the ring is oriented CCW)
    If the MaximalEdgeRing represents a polygon, the interior of the polygon is strongly connected.

    These are the form of rings used to define polygons under some spatial data models. However, under the OGC SFS model, MinimalEdgeRings are required. A MaximalEdgeRing can be converted to a list of MinimalEdgeRings using the buildMinimalRings() method.

    See Also:
    MinimalEdgeRing

    • Method Detail

      • linkDirectedEdgesForMinimalEdgeRings

        public void linkDirectedEdgesForMinimalEdgeRings()
        For all nodes in this EdgeRing, link the DirectedEdges at the node to form minimalEdgeRings

      • buildMinimalRings

        public List buildMinimalRings()