FarseerPhysics.Common.Decomposition.CDT.Delaunay.Sweep.DTSweepContext.MapTriangleToNodes C# (CSharp) Method

        public void MapTriangleToNodes(DelaunayTriangle t)
        {
            AdvancingFrontNode n;
            for (int i = 0; i < 3; i++)
            {
                if (t.neighbors[i] == null)
                {
                    n = aFront.LocatePoint(t.PointCW(t.points[i]));
                    if (n != null)
                    {
                        n.Triangle = t;
                    }
                }
            }
        }

        static void FlipEdgeEvent(DTSweepContext tcx, TriangulationPoint ep, TriangulationPoint eq, DelaunayTriangle t, TriangulationPoint p)
        {
            DelaunayTriangle   ot = t.NeighborAcross(p);
            TriangulationPoint op = ot.OppositePoint(t, p);

            if (ot == null)
            {
                // If we want to integrate the fillEdgeEvent do it here
                // With current implementation we should never get here
                throw new InvalidOperationException("[BUG:FIXME] FLIP failed due to missing triangle");
            }

            if (t.GetConstrainedEdgeAcross(p))
            {
                throw new Exception("Intersecting Constraints");
            }

            bool inScanArea = TriangulationUtil.InScanArea(p, t.PointCCW(p), t.PointCW(p), op);

            if (inScanArea)
            {
                // Lets rotate shared edge one vertex CW
                RotateTrianglePair(t, p, ot, op);
                tcx.MapTriangleToNodes(t);
                tcx.MapTriangleToNodes(ot);

                if (p == eq && op == ep)
                {
                    if (eq == tcx.EdgeEvent.ConstrainedEdge.Q &&
                        ep == tcx.EdgeEvent.ConstrainedEdge.P)
                    {
                        //if (tcx.IsDebugEnabled) Console.WriteLine("[FLIP] - constrained edge done"); // TODO: remove
                        t.MarkConstrainedEdge(ep, eq);
                        ot.MarkConstrainedEdge(ep, eq);
                        Legalize(tcx, t);
                        Legalize(tcx, ot);
                    }
                    else
                    {
                        //if (tcx.IsDebugEnabled) Console.WriteLine("[FLIP] - subedge done"); // TODO: remove
                        // XXX: I think one of the triangles should be legalized here?
                    }
                }
                else
                {
                    //if (tcx.IsDebugEnabled)
                    //    Console.WriteLine("[FLIP] - flipping and continuing with triangle still crossing edge");
                    // TODO: remove
                    Orientation o = TriangulationUtil.Orient2d(eq, op, ep);
                    t = NextFlipTriangle(tcx, o, t, ot, p, op);
                    FlipEdgeEvent(tcx, ep, eq, t, p);
                }
            }
            else
            {
                TriangulationPoint newP = NextFlipPoint(ep, eq, ot, op);
                FlipScanEdgeEvent(tcx, ep, eq, t, ot, newP);
                EdgeEvent(tcx, ep, eq, t, p);
            }
        }