/// <summary>
///
/// </summary>
/// <param name="ring"></param>
/// <param name="graph"></param>
private void VisitInteriorRing(ILineString ring, PlanarGraph graph)
{
ICoordinate[] pts = ring.Coordinates;
ICoordinate pt0 = pts[0];
/*
* Find first point in coord list different to initial point.
* Need special check since the first point may be repeated.
*/
ICoordinate pt1 = FindDifferentPoint(pts, pt0);
Edge e = graph.FindEdgeInSameDirection(pt0, pt1);
DirectedEdge de = (DirectedEdge)graph.FindEdgeEnd(e);
DirectedEdge intDe = null;
if (de.Label.GetLocation(0, Positions.Right) == Locations.Interior)
{
intDe = de;
}
else if (de.Sym.Label.GetLocation(0, Positions.Right) == Locations.Interior)
{
intDe = de.Sym;
}
Assert.IsTrue(intDe != null, "unable to find dirEdge with Interior on RHS");
VisitLinkedDirectedEdges(intDe);
}
private void VisitInteriorRing(ILineString iring, PlanarGraph graph)
{
LineString ring = (LineString)iring;
Coordinates pts = ring.GetCoordinates();
Edge e = graph.FindEdgeInSameDirection(pts[0], pts[1]);
DirectedEdge de = (DirectedEdge)graph.FindEdgeEnd(e);
DirectedEdge intDe = null;
if (de.Label.GetLocation(0, Position.Right) == Location.Interior)
{
intDe = de;
}
else if (de.Sym.Label.GetLocation(0, Position.Right) == Location.Interior)
{
intDe = de.Sym;
}
//Assert.isTrue(intDe != null, "unable to find dirEdge with Interior on RHS");
VisitLinkedDirectedEdges(intDe);
}