Table of Contents

Class MaximalEdgeRing

Namespace
NetTopologySuite.Operation.Overlay
Assembly
NetTopologySuite.dll

A ring of edges 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.

public class MaximalEdgeRing : EdgeRing
Inheritance
MaximalEdgeRing
Inherited Members

Constructors

MaximalEdgeRing(DirectedEdge, GeometryFactory) 

public MaximalEdgeRing(DirectedEdge start, GeometryFactory geometryFactory)

Parameters

start DirectedEdge
geometryFactory GeometryFactory

Methods

BuildMinimalRings() 

public IList<EdgeRing> BuildMinimalRings()

Returns

IList<EdgeRing>

GetNext(DirectedEdge) 

public override DirectedEdge GetNext(DirectedEdge de)

Parameters

de DirectedEdge

Returns

DirectedEdge

LinkDirectedEdgesForMinimalEdgeRings()

For all nodes in this EdgeRing, link the DirectedEdges at the node to form minimalEdgeRings

public void LinkDirectedEdgesForMinimalEdgeRings()

SetEdgeRing(DirectedEdge, EdgeRing) 

public override void SetEdgeRing(DirectedEdge de, EdgeRing er)

Parameters

de DirectedEdge
er EdgeRing