/// <summary>
/// Adds an Edge, DirectedEdges, and Nodes for the given LineString representation
/// of an edge.
/// </summary>
public virtual void AddEdge(LineString lineString)
{
if (lineString.IsEmpty)
return;
IList<Coordinate> coordinates = CoordinateArrays.RemoveRepeatedPoints(lineString.Coordinates);
Coordinate startCoordinate = coordinates[0];
Coordinate endCoordinate = coordinates[coordinates.Count - 1];
Node startNode = GetNode(startCoordinate);
Node endNode = GetNode(endCoordinate);
DirectedEdge directedEdge0 = new LineMergeDirectedEdge(startNode, endNode,
coordinates[1], true);
DirectedEdge directedEdge1 = new LineMergeDirectedEdge(endNode, startNode,
coordinates[coordinates.Count - 2], false);
Edge edge = new LineMergeEdge(lineString);
edge.SetDirectedEdges(directedEdge0, directedEdge1);
Add(edge);
}
/// <summary>
///
/// </summary>
/// <param name="start"></param>
/// <returns></returns>
private EdgeString BuildEdgeStringStartingWith(LineMergeDirectedEdge start)
{
EdgeString edgeString = new EdgeString(factory);
LineMergeDirectedEdge current = start;
do
{
edgeString.Add(current);
current.Edge.IsMarked = true;
current = current.Next;
}
while (current != null && current != start);
return edgeString;
}
/// <summary>
/// Adds a directed edge which is known to form part of this line.
/// </summary>
/// <param name="directedEdge"></param>
public virtual void Add(LineMergeDirectedEdge directedEdge)
{
directedEdges.Add(directedEdge);
}
