/// <summary>
/// Adds nodes for the first and last points of the edge.
/// </summary>
private void AddEndpoints()
{
int maxSegIndex = edge.Count - 1;
Add(edge.GetCoordinate(0), 0);
Add(edge.GetCoordinate(maxSegIndex), maxSegIndex);
}
public SegmentNode(SegmentString segString, Coordinate coord,
int segmentIndex, int segmentOctant)
{
this.segString = segString;
this.coord = new Coordinate(coord);
this.segmentIndex = segmentIndex;
this.segmentOctant = segmentOctant;
isInterior = !coord.Equals(
segString.GetCoordinate(segmentIndex));
}
/// <summary>
/// Checks the correctness of the set of split edges corresponding
/// to this edge.
/// </summary>
/// <param name="splitEdges">
/// The split edges for this edge (in order).
/// </param>
private void CheckSplitEdgesCorrectness(IList splitEdges)
{
ICoordinateList edgePts = edge.Coordinates;
// check that first and last points of split edges are same
//as endpoints of edge
SegmentString split0 = (SegmentString)splitEdges[0];
Coordinate pt0 = split0.GetCoordinate(0);
if (!pt0.Equals(edgePts[0]))
{
throw new GeometryException("bad split edge start point at " + pt0);
}
SegmentString splitn = (SegmentString)splitEdges[splitEdges.Count - 1];
ICoordinateList splitnPts = splitn.Coordinates;
Coordinate ptn = splitnPts[splitnPts.Count - 1];
if (!ptn.Equals(edgePts[edgePts.Count - 1]))
{
throw new GeometryException("bad split edge end point at " + ptn);
}
}