static void FinalizationPolygon(DTSweepContext tcx)
{
// Get an Internal triangle to start with
DelaunayTriangle t = tcx.aFront.Head.Next.Triangle;
TriangulationPoint p = tcx.aFront.Head.Next.Point;
while (!t.GetConstrainedEdgeCW(p))
{
t = t.NeighborCCW(p);
}
// Collect interior triangles constrained by edges
tcx.MeshClean(t);
}