Esempio n. 1
0
//C++ TO C# CONVERTER WARNING: The original C++ declaration of the following method implementation was not found:
        public void FindInnerBoxes(AdFront2 adfront, testinnerDelegate testinner)
        {
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer = NgProfiler::CreateTimer("LocalH::FindInnerBoxes 2d");
            NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(FindInnerBoxes_timer);

            for (int i = 0; i < boxes.Size(); i++)
            {
                boxes[i].flags.isinner = 0;
            }

            root.flags.isinner = 0;

            Point <2> rpmid(root.xmid[0], root.xmid[1]);              // , root->xmid[2]);
            Vec <2> rv(root.h2, root.h2);

            Point <2> rx2 = rpmid + rv;

            // Point<2> rx1 = rpmid - rv;


            root.flags.pinner = !adfront.SameSide(rpmid, rx2);

            if (testinner != null)
            {
                (*testout) << "inner = " << root.flags.pinner << " =?= " << testinner(rpmid) << "\n";
            }


            int              nf        = adfront.GetNFL();
            Array <int>      faceinds  = new Array <int>(nf);
            Array <Box <3> > faceboxes = new Array <Box <3> >(nf);

            for (int i = 0; i < nf; i++)
            {
                faceinds[i] = i;
                // adfront->GetFaceBoundingBox(i, faceboxes.Elem(i));

                FrontLine line = adfront.GetLine(i);
                faceboxes[i].Set(adfront.GetPoint(line.L().I1()));
                faceboxes[i].Add(adfront.GetPoint(line.L().I2()));
            }

            for (int i = 0; i < 8; i++)
            {
                FindInnerBoxesRec2(root.childs[i], adfront, faceboxes, faceinds, nf);
            }
        }
Esempio n. 2
0
//C++ TO C# CONVERTER WARNING: The original C++ declaration of the following method implementation was not found:
        public void FindInnerBoxes(AdFront3 adfront, testinnerDelegate testinner)
        {
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer = NgProfiler::CreateTimer("LocalH::FindInnerBoxes");
            NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(FindInnerBoxes_timer);


            int nf = adfront.GetNF();

            for (int i = 0; i < boxes.Size(); i++)
            {
                boxes[i].flags.isinner = 0;
            }

            root.flags.isinner = 0;

            Point3d rpmid = new Point3d(root.xmid[0], root.xmid[1], root.xmid[2]);
            Vec3d   rv    = new Vec3d(root.h2, root.h2, root.h2);
            Point3d rx2   = rpmid + rv;

            // Point3d rx1 = rpmid - rv;


            root.flags.pinner = !adfront.SameSide(rpmid, rx2);

            if (testinner != null)
            {
                (*testout) << "inner = " << root.flags.pinner << " =?= " << testinner(new Point3d(root.xmid[0], root.xmid[1], root.xmid[2])) << "\n";
            }

            Array <int>   faceinds  = new Array <int>(nf);
            Array <Box3d> faceboxes = new Array <Box3d>(nf);

            for (int i = 1; i <= nf; i++)
            {
                faceinds.Elem(i) = i;
                adfront.GetFaceBoundingBox(i, faceboxes.Elem(i));
            }

            for (int i = 0; i < 8; i++)
            {
                FindInnerBoxesRec2(root.childs[i], adfront, faceboxes, faceinds, nf);
            }
        }
Esempio n. 3
0
    public void Update(TaskManager tm = DummyTaskManager, Tracer tracer = DummyTracer)
    {
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	static int timer = NgProfiler::CreateTimer("clusters");
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	static int timer1 = NgProfiler::CreateTimer("clusters1");
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	static int timer2 = NgProfiler::CreateTimer("clusters2");
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	static int timer3 = NgProfiler::CreateTimer("clusters3");
        NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(Update_timer);

        MeshTopology top = mesh.GetTopology();

        var id     = this.mesh.GetCommunicator().Rank();
        var ntasks = this.mesh.GetCommunicator().Size();

        bool hasedges = top.HasEdges();
        bool hasfaces = top.HasFaces();

        if (!hasedges || !hasfaces)
        {
            return;
        }

        if (id == 0)
        {
            PrintMessage(3, "Update clusters");
        }

        nv  = mesh.GetNV();
        ned = top.GetNEdges();
        nfa = top.GetNFaces();
        ne  = mesh.GetNE();
        int nse = mesh.GetNSE();

        cluster_reps.SetSize(nv + ned + nfa + ne);
        cluster_reps = -1;

        Array <int> llist = new Array <int>(nv + ned + nfa + ne);

        llist = 0;

        Array <int> nnums  = new Array <int>();
        Array <int> ednums = new Array <int>();
        Array <int> fanums = new Array <int>();
        int         changed;

        NgProfiler.StartTimer(Update_timer1);


        /*
         * for (int i = 1; i <= ne; i++)
         * {
         * const Element & el = mesh.VolumeElement(i);
         * ELEMENT_TYPE typ = el.GetType();
         *
         * top.GetElementEdges (i, ednums);
         * top.GetElementFaces (i, fanums);
         *
         * int elnv = top.GetNVertices (typ);
         * int elned = ednums.Size();
         * int elnfa = fanums.Size();
         *
         * nnums.SetSize(elnv+elned+elnfa+1);
         * for (int j = 1; j <= elnv; j++)
         * nnums.Elem(j) = el.PNum(j);
         * for (int j = 1; j <= elned; j++)
         * nnums.Elem(elnv+j) = nv+ednums.Elem(j);
         * for (int j = 1; j <= elnfa; j++)
         * nnums.Elem(elnv+elned+j) = nv+ned+fanums.Elem(j);
         * nnums.Elem(elnv+elned+elnfa+1) = nv+ned+nfa+i;
         *
         * for (int j = 0; j < nnums.Size(); j++)
         * cluster_reps.Elem(nnums[j]) = nnums[j];
         * }
         */
        netgen.GlobalMembers.ParallelForRange(new TaskManager(tm), ne, (uint begin, uint end) =>
        {
            Array <int> nnums  = new Array <int>();
            Array <int> ednums = new Array <int>();
            Array <int> fanums = new Array <int>();
            for (int i = (int)(begin + 1); i <= end; i++)
            {
                Element el       = mesh.VolumeElement(i);
                ELEMENT_TYPE typ = el.GetType();

                top.GetElementEdges(i, ednums);
                top.GetElementFaces(i, fanums);

                int elnv  = top.GetNVertices(typ);
                int elned = ednums.Size();
                int elnfa = fanums.Size();

                nnums.SetSize(elnv + elned + elnfa + 1);
                for (int j = 1; j <= elnv; j++)
                {
                    nnums.Elem(j) = el.PNum(j) + 1 - PointIndex.BASE;
                }
                for (int j = 1; j <= elned; j++)
                {
                    nnums.Elem(elnv + j) = nv + ednums.Elem(j);
                }
                for (int j = 1; j <= elnfa; j++)
                {
                    nnums.Elem(elnv + elned + j) = nv + ned + fanums.Elem(j);
                }
                nnums.Elem(elnv + elned + elnfa + 1) = nv + ned + nfa + i;

                for (int j = 0; j < nnums.Size(); j++)
                {
                    cluster_reps.Elem(nnums[j]) = nnums[j];
                }
            }
        });

        NgProfiler.StopTimer(Update_timer1);
        NgProfiler.StartTimer(Update_timer2);

        /*
         * for (int i = 1; i <= nse; i++)
         * {
         * const Element2d & el = mesh.SurfaceElement(i);
         * ELEMENT_TYPE typ = el.GetType();
         *
         * top.GetSurfaceElementEdges (i, ednums);
         * int fanum = top.GetSurfaceElementFace (i);
         *
         * int elnv = top.GetNVertices (typ);
         * int elned = ednums.Size();
         *
         * nnums.SetSize(elnv+elned+1);
         * for (int j = 1; j <= elnv; j++)
         * nnums.Elem(j) = el.PNum(j)+1-PointIndex::BASE;
         * for (int j = 1; j <= elned; j++)
         * nnums.Elem(elnv+j) = nv+ednums.Elem(j);
         * nnums.Elem(elnv+elned+1) = fanum;
         *
         * for (int j = 0; j < nnums.Size(); j++)
         * cluster_reps.Elem(nnums[j]) = nnums[j];
         * }
         */
        netgen.GlobalMembers.ParallelForRange(new TaskManager(tm), (uint)nse, (uint begin, uint end) =>
        {
            ArrayMem <int, 9> nnums  = new ArrayMem <int, 9>();
            ArrayMem <int, 9> ednums = new ArrayMem <int, 9>();
            for (int i = (int)(begin + 1); i <= end; i++)
            {
                Element2d el     = mesh.SurfaceElement(i);
                ELEMENT_TYPE typ = el.GetType();

                top.GetSurfaceElementEdges(i, ednums);
                int fanum = top.GetSurfaceElementFace(i);

                int elnv  = top.GetNVertices(typ);
                int elned = ednums.Size();

                nnums.SetSize(elnv + elned + 1);
                for (int j = 1; j <= elnv; j++)
                {
                    nnums.Elem(j) = el.PNum(j) + 1 - PointIndex.BASE;
                }
                for (int j = 1; j <= elned; j++)
                {
                    nnums.Elem(elnv + j) = nv + ednums.Elem(j);
                }
                nnums.Elem(elnv + elned + 1) = fanum;

                for (int j = 0; j < nnums.Size(); j++)
                {
                    cluster_reps.Elem(nnums[j]) = nnums[j];
                }
            }
        });


        NgProfiler.StopTimer(Update_timer2);
        NgProfiler.StartTimer(Update_timer3);


        int[] hex_cluster = { 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 7, 8, 5, 6, 7, 8, 1, 2, 3, 4, 9, 9, 5, 8, 6, 7, 9 };

        int[] prism_cluster = { 1, 2, 3, 1, 2, 3, 4, 5, 6, 4, 5, 6, 3, 1, 2, 7, 7, 4, 5, 6, 7 };

        int[] pyramid_cluster = { 1, 2, 2, 1, 3, 4, 2, 1, 4, 6, 5, 5, 6, 7, 5, 7, 6, 4, 7 };
        int[] tet_cluster14   = { 1, 2, 3, 1, 1, 4, 5, 4, 5, 6, 7, 5, 4, 7, 7 };

        int[] tet_cluster12 = { 1, 1, 2, 3, 4, 4, 5, 1, 6, 6, 7, 7, 4, 6, 7 };

        int[] tet_cluster13 = { 1, 2, 1, 3, 4, 6, 4, 5, 1, 5, 7, 4, 7, 5, 7 };

        int[] tet_cluster23 = { 2, 1, 1, 3, 6, 5, 5, 4, 4, 1, 5, 7, 7, 4, 7 };

        int[] tet_cluster24 = { 2, 1, 3, 1, 4, 1, 5, 4, 6, 5, 5, 7, 4, 7, 7 };

        int[] tet_cluster34 = { 2, 3, 1, 1, 4, 5, 1, 6, 4, 5, 5, 4, 7, 7, 7 };

        int cnt = 0;

        do
        {
            tracer("update cluster, identify", false);
            cnt++;
            changed = 0;

            for (int i = 1; i <= ne; i++)
            {
                Element      el  = mesh.VolumeElement(i);
                ELEMENT_TYPE typ = el.GetType();

//C++ TO C# CONVERTER TODO TASK: C# does not have an equivalent to pointers to value types:
//ORIGINAL LINE: const int * clustertab = null;
                int clustertab = null;
                switch (typ)
                {
                case PRISM:
                case PRISM12:
                    clustertab = prism_cluster;
                    break;

                case HEX:
                    clustertab = hex_cluster;
                    break;

                case PYRAMID:
                    clustertab = pyramid_cluster;
                    break;

                case TET:
                case TET10:
                    if (cluster_reps.Get(el.PNum(1) + 1 - PointIndex.BASE) == cluster_reps.Get(el.PNum(2) + 1 - PointIndex.BASE))
                    {
                        clustertab = tet_cluster12;
                    }
                    else if (cluster_reps.Get(el.PNum(1) + 1 - PointIndex.BASE) == cluster_reps.Get(el.PNum(3) + 1 - PointIndex.BASE))
                    {
                        clustertab = tet_cluster13;
                    }
                    else if (cluster_reps.Get(el.PNum(1) + 1 - PointIndex.BASE) == cluster_reps.Get(el.PNum(4) + 1 - PointIndex.BASE))
                    {
                        clustertab = tet_cluster14;
                    }
                    else if (cluster_reps.Get(el.PNum(2) + 1 - PointIndex.BASE) == cluster_reps.Get(el.PNum(3) + 1 - PointIndex.BASE))
                    {
                        clustertab = tet_cluster23;
                    }
                    else if (cluster_reps.Get(el.PNum(2) + 1 - PointIndex.BASE) == cluster_reps.Get(el.PNum(4) + 1 - PointIndex.BASE))
                    {
                        clustertab = tet_cluster24;
                    }
                    else if (cluster_reps.Get(el.PNum(3) + 1 - PointIndex.BASE) == cluster_reps.Get(el.PNum(4) + 1 - PointIndex.BASE))
                    {
                        clustertab = tet_cluster34;
                    }

                    else
                    {
                        clustertab = null;
                    }
                    break;

                default:
                    clustertab = null;
                    break;
                }

                if (clustertab != 0)
                {
                    top.GetElementEdges(i, ednums);
                    top.GetElementFaces(i, fanums);

                    int elnv  = top.GetNVertices(typ);
                    int elned = ednums.Size();
                    int elnfa = fanums.Size();

                    nnums.SetSize(elnv + elned + elnfa + 1);
                    for (int j = 1; j <= elnv; j++)
                    {
                        nnums.Elem(j) = el.PNum(j) + 1 - PointIndex.BASE;
                    }
                    for (int j = 1; j <= elned; j++)
                    {
                        nnums.Elem(elnv + j) = nv + ednums.Elem(j);
                    }
                    for (int j = 1; j <= elnfa; j++)
                    {
                        nnums.Elem(elnv + elned + j) = nv + ned + fanums.Elem(j);
                    }
                    nnums.Elem(elnv + elned + elnfa + 1) = nv + ned + nfa + i;



                    for (int j = 0; j < nnums.Size(); j++)
                    {
                        for (int k = 0; k < j; k++)
                        {
                            if (clustertab[j] == clustertab[k])
                            {
                                int jj = nnums[j];
                                int kk = nnums[k];

                                if (cluster_reps.Get(kk) < cluster_reps.Get(jj))
                                {
                                    swap(jj, kk);
                                }

                                if (cluster_reps.Get(jj) < cluster_reps.Get(kk))
                                {
                                    /*
                                     * cluster_reps.Elem(kk) = cluster_reps.Get(jj);
                                     * changed = 1;
                                     */

                                    int rep  = cluster_reps.Get(jj);
                                    int next = cluster_reps.Get(kk);
                                    do
                                    {
                                        int cur = next;
                                        next = llist.Elem(next);

                                        cluster_reps.Elem(cur) = rep;
                                        llist.Elem(cur)        = llist.Elem(rep);
                                        llist.Elem(rep)        = cur;
                                    } while (next != 0);
                                    changed = 1;
                                }
                            }
                        }
                    }
                }

                /*
                 * if (clustertab)
                 * {
                 * if (typ == PYRAMID)
                 * (*testout) << "pyramid";
                 * else if (typ == PRISM || typ == PRISM12)
                 * (*testout) << "prism";
                 * else if (typ == TET || typ == TET10)
                 * (*testout) << "tet";
                 * else
                 * (*testout) << "unknown type" << endl;
                 *
                 * (*testout) << ", nnums  = ";
                 * for (j = 0; j < nnums.Size(); j++)
                 * (*testout) << "node " << j << " = " << nnums[j] << ", rep = "
                 * << cluster_reps.Get(nnums[j]) << endl;
                 * }
                 */
            }
            tracer("update cluster, identify", true);
        } while (changed != 0);
        NgProfiler.StopTimer(Update_timer3);

        /*
         * (*testout) << "cluster reps:" << endl;
         * for (i = 1; i <= cluster_reps.Size(); i++)
         * {
         * (*testout) << i << ": ";
         * if (i <= nv)
         * (*testout) << "v" << i << " ";
         * else if (i <= nv+ned)
         * (*testout) << "e" << i-nv << " ";
         * else if (i <= nv+ned+nfa)
         * (*testout) << "f" << i-nv-ned << " ";
         * else
         * (*testout) << "c" << i-nv-ned-nfa << " ";
         * (*testout) << cluster_reps.Get(i) << endl;
         * }
         */
    }
//C++ TO C# CONVERTER WARNING: The original C++ declaration of the following method implementation was not found:
        public void BlockFillLocalH(Mesh mesh, MeshingParameters mp)
        {
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer = NgProfiler::CreateTimer("Meshing2::BlockFill");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer1 = NgProfiler::CreateTimer("Meshing2::BlockFill 1");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer2 = NgProfiler::CreateTimer("Meshing2::BlockFill 2");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer3 = NgProfiler::CreateTimer("Meshing2::BlockFill 3");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer4 = NgProfiler::CreateTimer("Meshing2::BlockFill 4");
            NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(BlockFillLocalH_timer);

            NgProfiler.StartTimer(BlockFillLocalH_timer1);

            double filldist = mp.filldist;

            Console.Write("blockfill local h");
            Console.Write("\n");
            Console.Write("rel filldist = ");
            Console.Write(filldist);
            Console.Write("\n");
            PrintMessage(3, "blockfill local h");

            Array <Point <3> > npoints = new Array <Point <3> >();

            // adfront -> CreateTrees();

            Box <3> bbox(Box <3> .EMPTY_BOX);

            double maxh = 0;

            for (int i = 0; i < adfront.GetNFL(); i++)
            {
                FrontLine line = adfront.GetLine(i);

                const Point <3>& p1 = adfront.GetPoint(line.L().I1());
                const Point <3>& p2 = adfront.GetPoint(line.L().I2());

                maxh = Math.Max(maxh, Dist(p1, p2));

                bbox.Add(p1);
                bbox.Add(p2);
            }


            Console.Write("bbox = ");
            Console.Write(bbox);
            Console.Write("\n");


            // Point<3> mpc = bbox.Center();
            bbox.Increase(bbox.Diam() / 2);
            Box <3> meshbox = bbox;

            NgProfiler.StopTimer(BlockFillLocalH_timer1);
            NgProfiler.StartTimer(BlockFillLocalH_timer2);


            LocalH loch2 = new LocalH(bbox, 1, 2);

            if (mp.maxh < maxh)
            {
                maxh = mp.maxh;
            }

            bool changed;

            do
            {
                mesh.LocalHFunction().ClearFlags();

                for (int i = 0; i < adfront.GetNFL(); i++)
                {
                    FrontLine line = adfront.GetLine(i);

                    Box <3> bbox(adfront.GetPoint(line.L().I1()));

                    bbox.Add(adfront.GetPoint(line.L().I2()));


                    double filld = filldist * bbox.Diam();
                    bbox.Increase(filld);

                    mesh.LocalHFunction().CutBoundary(bbox);
                }


                mesh.LocalHFunction().FindInnerBoxes(adfront, null);

                npoints.SetSize(0);
                mesh.LocalHFunction().GetInnerPoints(npoints);

                changed = false;
                for (int i = 0; i < npoints.Size(); i++)
                {
                    if (mesh.LocalHFunction().GetH(npoints[i]) > 1.2 * maxh)
                    {
                        mesh.LocalHFunction().SetH(npoints[i], maxh);
                        changed = true;
                    }
                }
            } while (changed);

            NgProfiler.StopTimer(BlockFillLocalH_timer2);
            NgProfiler.StartTimer(BlockFillLocalH_timer3);


            if (debugparam.slowchecks)
            {
                (*testout) << "Blockfill with points: " << "\n";
            }
            *testout << "loch = " << mesh.LocalHFunction() << "\n";

            *testout << "npoints = " << "\n" << npoints << "\n";

            for (int i = 1; i <= npoints.Size(); i++)
            {
                if (meshbox.IsIn(npoints.Get(i)))
                {
                    PointIndex gpnum = mesh.AddPoint(npoints.Get(i));
                    adfront.AddPoint(npoints.Get(i), gpnum);

                    if (debugparam.slowchecks)
                    {
                        (*testout) << npoints.Get(i) << "\n";

                        Point <2> p2d(npoints.Get(i)(0), npoints.Get(i)(1));

                        if (!adfront.Inside(p2d))
                        {
                            Console.Write("add outside point");
                            Console.Write("\n");
                            (*testout) << "outside" << "\n";
                        }
                    }
                }
            }

            NgProfiler.StopTimer(BlockFillLocalH_timer3);
            NgProfiler.StartTimer(BlockFillLocalH_timer4);


            // find outer points

            loch2.ClearFlags();

            for (int i = 0; i < adfront.GetNFL(); i++)
            {
                FrontLine line = adfront.GetLine(i);

                Box <3> bbox(adfront.GetPoint(line.L().I1()));

                bbox.Add(adfront.GetPoint(line.L().I2()));

                loch2.SetH(bbox.Center(), bbox.Diam());
            }


            for (int i = 0; i < adfront.GetNFL(); i++)
            {
                FrontLine line = adfront.GetLine(i);

                Box <3> bbox(adfront.GetPoint(line.L().I1()));

                bbox.Add(adfront.GetPoint(line.L().I2()));

                bbox.Increase(filldist * bbox.Diam());
                loch2.CutBoundary(bbox);
            }

            loch2.FindInnerBoxes(adfront, null);

            // outer points : smooth mesh-grading
            npoints.SetSize(0);
            loch2.GetOuterPoints(npoints);

            for (int i = 1; i <= npoints.Size(); i++)
            {
                if (meshbox.IsIn(npoints.Get(i)))
                {
                    PointIndex gpnum = mesh.AddPoint(npoints.Get(i));
                    adfront.AddPoint(npoints.Get(i), gpnum);
                }
            }

            NgProfiler.StopTimer(BlockFillLocalH_timer4);
        }
//C++ TO C# CONVERTER WARNING: The original C++ declaration of the following method implementation was not found:
        public int ApplyRules(Array <Point2d> lpoints, Array <int> legalpoints, int maxlegalpoint, Array <INDEX_2> llines1, int maxlegalline, Array <Element2d> elements, Array <int> dellines, int tolerance, MeshingParameters mp)
        {
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer = NgProfiler::CreateTimer("meshing2::ApplyRules");
            NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(ApplyRules_timer);



            double maxerr   = 0.5 + 0.3 * tolerance;
            double minelerr = 2 + 0.5 * tolerance * tolerance;

            int noldlp = lpoints.Size();
            int noldll = llines1.Size();


            ArrayMem <int, 100> pused     = new ArrayMem <int, 100>((uint)maxlegalpoint);
            ArrayMem <int, 100> lused     = new ArrayMem <int, 100>((uint)maxlegalline);
            ArrayMem <int, 100> pnearness = new ArrayMem <int, 100>((uint)noldlp);
            ArrayMem <int, 100> lnearness = new ArrayMem <int, 100>(llines1.Size());

            ArrayMem <int, 20> pmap   = new ArrayMem <int, 20>();
            ArrayMem <int, 20> pfixed = new ArrayMem <int, 20>();
            ArrayMem <int, 20> lmap   = new ArrayMem <int, 20>();

            ArrayMem <Point2d, 100>   tempnewpoints = new ArrayMem <Point2d, 100>();
            ArrayMem <INDEX_2, 100>   tempnewlines  = new ArrayMem <INDEX_2, 100>();
            ArrayMem <int, 100>       tempdellines  = new ArrayMem <int, 100>();
            ArrayMem <Element2d, 100> tempelements  = new ArrayMem <Element2d, 100>();


            elements.SetSize(0);
            dellines.SetSize(0);

            testmode = debugparam.debugoutput;

                #if LOCDEBUG
            int loctestmode = testmode;

            if (loctestmode != 0)
            {
                (*testout) << "\n" << "\n" << "Check new environment" << "\n";
                (*testout) << "tolerance = " << tolerance << "\n";
                for (int i = 1; i <= lpoints.Size(); i++)
                {
                    (*testout) << "P" << i << " = " << lpoints.Get(i) << "\n";
                }
                (*testout) << "\n";
                for (int i = 1; i <= llines1.Size(); i++)
                {
                    (*testout) << "(" << llines1.Get(i).I1() << "-" << llines1.Get(i).I2() << ")" << "\n";
                }
            }
                #endif

            // check every rule

            int found = 0;             // rule number

            pnearness = 1000;

            for (int j = 0; j < 2; j++)
            {
                pnearness.Set(llines1[0][j], 0);
            }



            for (int cnt = 0; cnt < MAX_NEARNESS; cnt++)
            {
                bool ok = true;
                for (int i = 0; i < maxlegalline; i++)
                {
                    INDEX_2 hline = llines1[i];

                    int minn = min2(pnearness.Get(hline[0]), pnearness.Get(hline[1]));

                    for (int j = 0; j < 2; j++)
                    {
                        if (pnearness.Get(hline[j]) > minn + 1)
                        {
                            ok = false;
                            pnearness.Set(hline[j], minn + 1);
                        }
                    }
                }
                if (!ok)
                {
                    break;
                }
            }


            for (int i = 0; i < maxlegalline; i++)
            {
                lnearness[i] = pnearness.Get(llines1[i][0]) + pnearness.Get(llines1[i][1]);
            }


            // resort lines after lnearness
            Array <INDEX_2> llines          = new Array <INDEX_2>(llines1.Size());
            Array <int>     sortlines       = new Array <int>(llines1.Size());
            int[]           lnearness_class = new int[MAX_NEARNESS];

            for (int j = 0; j < MAX_NEARNESS; j++)
            {
                lnearness_class[j] = 0;
            }
            for (int i = 0; i < maxlegalline; i++)
            {
                if (lnearness[i] < MAX_NEARNESS)
                {
                    lnearness_class[lnearness[i]]++;
                }
            }

            int cumm = 0;
            for (int j = 0; j < MAX_NEARNESS; j++)
            {
                int hcnt = lnearness_class[j];
                lnearness_class[j] = cumm;
                cumm += hcnt;
            }

            for (int i = 0; i < maxlegalline; i++)
            {
                if (lnearness[i] < MAX_NEARNESS)
                {
                    llines[lnearness_class[lnearness[i]]]    = llines1[i];
                    sortlines[lnearness_class[lnearness[i]]] = i + 1;
                    lnearness_class[lnearness[i]]++;
                }
                else
                {
                    llines[cumm]    = llines1[i];
                    sortlines[cumm] = i + 1;
                    cumm++;
                }
            }

            for (int i = maxlegalline; i < llines1.Size(); i++)
            {
                llines[cumm]    = llines1[i];
                sortlines[cumm] = i + 1;
                cumm++;
            }

            for (int i = 0; i < maxlegalline; i++)
            {
                lnearness[i] = pnearness.Get(llines[i][0]) + pnearness.Get(llines[i][1]);
            }



            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static bool firsttime = true;
            // static int timers[100];
            // static int timers2[100];
            // static int timers3[100];
            if (ApplyRules_firsttime)
            {
                /*
                 * for (int ri = 0; ri < rules.Size(); ri++)
                 * timers[ri] = NgProfiler::CreateTimer (string("netrule ")+rules[ri]->Name());
                 * for (int ri = 0; ri < rules.Size(); ri++)
                 * timers2[ri] = NgProfiler::CreateTimer (string("netrule,mapped ")+rules[ri]->Name());
                 * for (int ri = 0; ri < rules.Size(); ri++)
                 * timers3[ri] = NgProfiler::CreateTimer (string("netrule,lines mapped ")+rules[ri]->Name());
                 */
                ApplyRules_firsttime = false;
            }

            lused = 0;
            pused = 0;


            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer1 = NgProfiler::CreateTimer("meshing2::ApplyRules 1");
            NgProfiler.RegionTimer reg1 = new NgProfiler.RegionTimer(ApplyRules_timer1);


            for (int ri = 1; ri <= rules.Size(); ri++)
            {
                // NgProfiler::RegionTimer reg(timers[ri-1]);
                netrule rule = rules.Get(ri);

                #if LOCDEBUG
                if (loctestmode != 0)
                {
                    (*testout) << "Rule " << rule.Name() << "\n";
                }
                #endif

                if (rule.GetQuality() > tolerance)
                {
                    continue;
                }

                pmap.SetSize(rule.GetNP());
                lmap.SetSize(rule.GetNL());

                pmap = 0;
                lmap = 0;

                lused[0] = 1;
                lmap[0]  = 1;

                for (int j = 0; j < 2; j++)
                {
                    pmap.Elem(rule.GetLine 1[j]) = llines[0][j];
                    pused.Elem(llines[0][j])++;
                }



                int nlok = 2;


                bool ok = false;

                while (nlok >= 2)
                {
                    if (nlok <= rule.GetNOldL())

                    {
                        ok = false;

                        int maxline = (rule.GetLNearness(nlok) < MAX_NEARNESS) ? lnearness_class[rule.GetLNearness(nlok)] : maxlegalline;
                        // int maxline = maxlegalline;

                        while (!ok && lmap.Get(nlok) < maxline)
                        {
                            lmap.Elem(nlok)++;
                            int locli = lmap.Get(nlok);

                            if (lnearness.Get(locli) > rule.GetLNearness(nlok))
                            {
                                continue;
                            }
                            if (lused.Get(locli))
                            {
                                continue;
                            }


                            ok = true;

                            INDEX_2 loclin  = llines.Get(locli);
                            Vec2d   linevec = lpoints.Get(loclin.I2()) - lpoints.Get(loclin.I1());

                            if (rule.CalcLineError(nlok, linevec) > maxerr)
                            {
                                ok = false;
                #if LOCDEBUG
                                if (loctestmode != 0)
                                {
                                    (*testout) << "not ok pos1" << "\n";
                                }
                #endif
                                continue;
                            }

                            for (int j = 0; j < 2; j++)
                            {
                                int refpi = rule.GetLine(nlok)[j];

                                if (pmap.Get(refpi) != 0)
                                {
                                    if (pmap.Get(refpi) != loclin[j])
                                    {
                                        ok = false;
                #if LOCDEBUG
                                        if (loctestmode != 0)
                                        {
                                            (*testout) << "not ok pos2" << "\n";
                                        }
                #endif
                                        break;
                                    }
                                }
                                else
                                {
                                    if (rule.CalcPointDist(refpi, lpoints.Get(loclin[j])) > maxerr || !legalpoints.Get(loclin[j]) || pused.Get(loclin[j]))
                                    {
                                        ok = false;
                #if LOCDEBUG
                                        if (loctestmode != 0)
                                        {
                                            (*testout) << "nok pos3" << "\n";
                                            //if(rule->CalcPointDist (refpi, lpoints.Get(loclin[j])) > maxerr)
                                            //(*testout) << "r1" << endl;
                                            //if(!legalpoints.Get(loclin[j]))
                                            //(*testout) << "r2 legalpoints " << legalpoints << " loclin " << loclin << " j " << j << endl;
                                            //if(pused.Get(loclin[j]))
                                            //(*testout) << "r3" << endl;
                                        }
                #endif
                                        break;
                                    }
                                }
                            }
                        }

                        if (ok)
                        {
                            int     locli  = lmap.Get(nlok);
                            INDEX_2 loclin = llines.Get(locli);

                            lused.Elem(locli) = 1;
                            for (int j = 0; j < 2; j++)
                            {
                                pmap.Set(rule.GetLine nlok[j], loclin[j]);
//C++ TO C# CONVERTER WARNING: The original C++ declaration of the following method implementation was not found:
        public void Delaunay(Mesh mesh, int domainnr, MeshingParameters mp)
        {
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer = NgProfiler::CreateTimer("Meshing2::Delaunay - total");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timerstart = NgProfiler::CreateTimer("Meshing2::Delaunay - start");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timerfinish = NgProfiler::CreateTimer("Meshing2::Delaunay - finish");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer1 = NgProfiler::CreateTimer("Meshing2::Delaunay - incremental");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer1a = NgProfiler::CreateTimer("Meshing2::Delaunay - incremental a");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer1b = NgProfiler::CreateTimer("Meshing2::Delaunay - incremental b");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer1c = NgProfiler::CreateTimer("Meshing2::Delaunay - incremental c");
            //C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
            //	static int timer1d = NgProfiler::CreateTimer("Meshing2::Delaunay - incremental d");
            NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(Delaunay_timer);



            Console.Write("2D Delaunay meshing (in progress)");
            Console.Write("\n");


            BlockFillLocalH(mesh, mp);

            NgProfiler.StartTimer(Delaunay_timerstart);

            // do the delaunay


            // face bounding box:
            Box <3> bbox(Box <3> .EMPTY_BOX);

            for (int i = 0; i < adfront.GetNFL(); i++)
            {
                FrontLine line = adfront.GetLine(i);
                bbox.Add(Point <3> (adfront.GetPoint(line.L [0])));
                bbox.Add(Point <3> (adfront.GetPoint(line.L [1])));
            }

            for (int i = 0; i < mesh.LockedPoints().Size(); i++)
            {
                bbox.Add(new mesh.Point(mesh.LockedPoints [i]));
            }

            Console.Write("bbox = ");
            Console.Write(bbox);
            Console.Write("\n");

            // external point
            Vec <3> vdiag = bbox.PMax() - bbox.PMin();

            var          old_points = mesh.Points().Range();
            DelaunayTrig startel    = new DelaunayTrig();

            startel[0] = mesh.AddPoint(bbox.PMin() + Vec <3> (-8 * vdiag(0), -8 * vdiag(1), 0));
            startel[1] = mesh.AddPoint(bbox.PMin() + Vec <3> (+8 * vdiag(0), -8 * vdiag(1), 0));
            startel[2] = mesh.AddPoint(bbox.PMin() + Vec <3> (0, 8 * vdiag(1), 0));

            Box <3> hbox;

            hbox.Set(mesh[startel[0]]);
            hbox.Add(mesh[startel[1]]);
            hbox.Add(mesh[startel[2]]);
            Point <3> hp = mesh[startel[0]];

            hp(2) = 1;
            hbox.Add(hp);
            hp(2) = -1;
            hbox.Add(hp);
            BoxTree <3> searchtree(hbox);

            Array <DelaunayTrig> tempels = new Array <DelaunayTrig>();

            startel.CalcCenter(mesh);

            tempels.Append(startel);
            searchtree.Insert(startel.BoundingBox(), 0);

            Array <int>     closeels     = new Array <int>();
            Array <int>     intersecting = new Array <int>();
            Array <INDEX_2> edges        = new Array <INDEX_2>();



            // reorder points
            Array <PointIndex, PointIndex.BASE, PointIndex> mixed = new Array <PointIndex, PointIndex.BASE, PointIndex>(old_points.Size());

            int[] prims = { 11, 13, 17, 19, 23, 29, 31, 37 };
            int   prim;

            {
                int i = 0;
                while (old_points.Size() % prims[i] == 0)
                {
                    i++;
                }
                prim = prims[i];
            }

            foreach (PointIndex pi in old_points)
            {
                mixed[pi] = new PointIndex((prim * pi) % old_points.Size() + PointIndex.BASE);
            }

            NgProfiler.StopTimer(Delaunay_timerstart);
            NgProfiler.StartTimer(Delaunay_timer1);


            foreach (PointIndex i1 in old_points)
            {
                PointIndex i = mixed[i1];

                NgProfiler.StartTimer(Delaunay_timer1a);
                Point <3> newp = mesh[i];
                intersecting.SetSize(0);
                edges.SetSize(0);

                searchtree.GetIntersecting(newp, newp, closeels);
                // for (int jj = 0; jj < closeels.Size(); jj++)
                // for (int j = 0; j < tempels.Size(); j++)
                foreach (int j in closeels)
                {
                    if (tempels[j][0] < 0)
                    {
                        continue;
                    }
                    Point <3> c  = tempels[j].Center();
                    double    r2 = tempels[j].Radius2();

                    bool inside = Dist2(mesh[i], c) < r2;
                    if (inside)
                    {
                        intersecting.Append(j);
                    }
                }

                NgProfiler.StopTimer(Delaunay_timer1a);
                NgProfiler.StartTimer(Delaunay_timer1b);

                // find outer edges
                foreach (var j in intersecting)
                {
                    DelaunayTrig trig = tempels[j];
                    for (int k = 0; k < 3; k++)
                    {
                        int     p1   = trig[k];
                        int     p2   = trig[(k + 1) % 3];
                        INDEX_2 edge = new INDEX_2(p1, p2);
                        edge.Sort();
                        bool found = false;
                        for (int l = 0; l < edges.Size(); l++)
                        {
                            if (edges[l] == edge)
                            {
                                edges.Delete(l);
                                found = true;
                                break;
                            }
                        }
                        if (!found)
                        {
                            edges.Append(edge);
                        }
                    }
                }

                NgProfiler.StopTimer(Delaunay_timer1b);
                NgProfiler.StartTimer(Delaunay_timer1c);

                /*
                 * for (int j = intersecting.Size()-1; j >= 0; j--)
                 * tempels.Delete (intersecting[j]);
                 */
                foreach (int j in intersecting)
                {
                    searchtree.DeleteElement(j);
                    tempels[j][0] = -1;
                    tempels[j][1] = -1;
                    tempels[j][2] = -1;
                }

                NgProfiler.StopTimer(Delaunay_timer1c);
                NgProfiler.StartTimer(Delaunay_timer1d);

                foreach (var edge in edges)
                {
                    DelaunayTrig trig = new DelaunayTrig(edge[0], edge[1], i);
                    trig.CalcCenter(mesh);
                    tempels.Append(trig);
                    searchtree.Insert(trig.BoundingBox(), tempels.Size() - 1);
                }

                NgProfiler.StopTimer(Delaunay_timer1d);
            }

            NgProfiler.StopTimer(Delaunay_timer1);
            NgProfiler.StartTimer(Delaunay_timerfinish);

            foreach (DelaunayTrig trig in tempels)
            {
                if (trig[0] < 0)
                {
                    continue;
                }

                Point <3> c = Center(mesh[trig[0]], mesh[trig[1]], mesh[trig[2]]);
                if (!adfront.Inside(Point <2> (c(0), c(1))))
                {
                    continue;
                }

                Vec <3> n = Cross(mesh[trig[1]] - mesh[trig[0]], mesh[trig[2]] - mesh[trig[0]]);
                if (n(2) < 0)
                {
                    Swap(ref trig[1], ref trig[2]);
                }

                Element2d el = new Element2d(trig[0], trig[1], trig[2]);
                el.SetIndex(domainnr);
                mesh.AddSurfaceElement(el);
            }

            foreach (PointIndex pi in mesh.Points().Range())
            {
                *testout << pi << ": " << mesh[pi].Type() << "\n";
            }

            NgProfiler.StopTimer(Delaunay_timerfinish);
        }
Esempio n. 7
0
        public void UpdateCoarseGridGlobal()
        {
            // cout << "updatecoarsegridglobal called" << endl;
            if (id == 0)
            {
                PrintMessage(3, "UPDATE GLOBAL COARSEGRID STARTS");
            }

            int timer = NgProfiler.CreateTimer("UpdateCoarseGridGlobal");

            NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(timer);

            *testout << "ParallelMeshTopology :: UpdateCoarseGridGlobal" << "\n";

            MeshTopology topology = mesh.GetTopology();
            MPI_Comm     comm     = mesh.GetCommunicator();

            if (id == 0)
            {
                Array <Array <int> > sendarrays = new Array <Array <int> >(ntasks);
                for (int dest = 1; dest < ntasks; dest++)
                {
                    sendarrays[dest] = new Array <int>();
                }

                Array <int> edges = new Array <int>();
                Array <int> faces = new Array <int>();
                for (int el = 1; el <= mesh.GetNE(); el++)
                {
                    topology.GetElementFaces(el, faces);
                    topology.GetElementEdges(el, edges);
                    Element volel = mesh.VolumeElement(el);

                    // Array<int> & sendarray = *sendarrays[volel.GetPartition()];
                    Array <int> sendarray = *sendarrays[mesh.vol_partition[el - 1]];

                    for (int i = 0; i < edges.Size(); i++)
                    {
                        sendarray.Append(edges[i]);
                    }
                    for (int i = 0; i < faces.Size(); i++)
                    {
                        sendarray.Append(faces[i]);
                    }
                }

                for (int el = 1; el <= mesh.GetNSE(); el++)
                {
                    topology.GetSurfaceElementEdges(el, edges);
                    Element2d surfel = mesh.SurfaceElement(el);
                    // Array<int> & sendarray = *sendarrays[surfel.GetPartition()];
                    Array <int> sendarray = *sendarrays[mesh.surf_partition[el - 1]];

                    for (int i = 0; i < edges.Size(); i++)
                    {
                        sendarray.Append(edges[i]);
                    }
                    sendarray.Append(topology.GetSurfaceElementFace(el));
                }

                Array <MPI_Request> sendrequests = new Array <MPI_Request>();
                for (int dest = 1; dest < ntasks; dest++)
                {
                    sendrequests.Append(netgen.GlobalMembers.MyMPI_ISend(sendarrays[dest], dest, MPI_TAG_MESH + 10, new MPI_Comm(comm)));
                }
                MPI_Waitall(sendrequests.Size(), sendrequests[0], MPI_STATUS_IGNORE);

                for (int dest = 1; dest < ntasks; dest++)
                {
                    sendarrays[dest] = null;
                }
            }

            else

            {
                Array <int> recvarray = new Array <int>();
                netgen.GlobalMembers.MyMPI_Recv(ref recvarray, 0, MPI_TAG_MESH + 10, new MPI_Comm(comm));

                int ii = 0;

                Array <int> faces = new Array <int>();
                Array <int> edges = new Array <int>();

                for (int volel = 1; volel <= mesh.GetNE(); volel++)
                {
                    topology.GetElementEdges(volel, edges);
                    for (int i = 0; i < edges.Size(); i++)
                    {
                        SetLoc2Glob_Edge(edges[i], recvarray[ii++]);
                    }

                    topology.GetElementFaces(volel, faces);
                    for (int i = 0; i < faces.Size(); i++)
                    {
                        SetLoc2Glob_Face(faces[i], recvarray[ii++]);
                    }
                }

                for (int surfel = 1; surfel <= mesh.GetNSE(); surfel++)
                {
                    topology.GetSurfaceElementEdges(surfel, edges);
                    for (int i = 0; i < edges.Size(); i++)
                    {
                        SetLoc2Glob_Edge(edges[i], recvarray[ii++]);
                    }
                    int face = topology.GetSurfaceElementFace(surfel);
                    SetLoc2Glob_Face(face, recvarray[ii++]);
                }
            }

            is_updated = true;
        }
Esempio n. 8
0
        public void UpdateCoarseGrid()
        {
            // cout << "UpdateCoarseGrid" << endl;
            // if (is_updated) return;

            NgMPI_Comm comm   = mesh.GetCommunicator();
            int        id     = comm.Rank();
            int        ntasks = comm.Size();

            if (ntasks == 1)
            {
                return;
            }

            Reset();
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	  static int timer = NgProfiler::CreateTimer("UpdateCoarseGrid");
            NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(UpdateCoarseGrid_timer);


            (*testout) << "UPDATE COARSE GRID PARALLEL TOPOLOGY " << "\n";
            if (id == 0)
            {
                PrintMessage(1, "update parallel topology");
            }


            // UpdateCoarseGridGlobal();



            // MPI_Barrier (MPI_COMM_WORLD);

            MPI_Group MPI_GROUP_comm = new MPI_Group();
            MPI_Group MPI_LocalGroup = new MPI_Group();
            MPI_Comm  MPI_LocalComm  = new MPI_Comm();

            int[] process_ranks = { 0 };
            MPI_Comm_group(comm, MPI_GROUP_comm);
            MPI_Group_excl(MPI_GROUP_comm, 1, process_ranks, MPI_LocalGroup);
            MPI_Comm_create(comm, MPI_LocalGroup, MPI_LocalComm);

            if (id == 0)
            {
                return;
            }

            MeshTopology topology = mesh.GetTopology();

            Array <int> cnt_send = new Array <int>(ntasks - 1);


            // update new vertices after mesh-refinement
            if (mesh.mlbetweennodes.Size() > 0)
            {
                // cout << "UpdateCoarseGrid - vertices" << endl;
                int newnv = mesh.mlbetweennodes.Size();
                loc2distvert.ChangeSize(mesh.mlbetweennodes.Size());

                /*
                 *      for (PointIndex pi = PointIndex::BASE; pi < newnv+PointIndex::BASE; pi++)
                 *            {
                 *              PointIndex v1 = mesh.mlbetweennodes[pi][0];
                 *              PointIndex v2 = mesh.mlbetweennodes[pi][1];
                 *              if (mesh.mlbetweennodes[pi][0] != PointIndex::BASE-1)
                 *                    for (int dest = 1; dest < ntasks; dest++)
                 *                      if (IsExchangeVert (dest, v1) && IsExchangeVert (dest, v2))
                 *                            SetDistantPNum(dest, pi);
                 *            }
                 */

                bool changed = true;
                while (changed)
                {
                    changed = false;

                    // build exchange vertices
                    cnt_send = 0;
                    foreach (PointIndex pi in mesh.Points().Range())
                    {
                        foreach (int dist in GetDistantPNums(pi - PointIndex.BASE))
                        {
                            cnt_send[dist - 1]++;
                        }
                    }
                    TABLE <int> dest2vert = new TABLE <int>(cnt_send);
                    foreach (PointIndex pi in mesh.Points().Range())
                    {
                        foreach (int dist in GetDistantPNums(pi - PointIndex.BASE))
                        {
                            dest2vert.Add(dist - 1, pi);
                        }
                    }


                    for (PointIndex pi = PointIndex.BASE; pi < newnv + PointIndex.BASE; pi++)
                    {
                        PointIndex v1 = mesh.mlbetweennodes[pi][0];
                        PointIndex v2 = mesh.mlbetweennodes[pi][1];
                        if (mesh.mlbetweennodes[pi][0] != PointIndex.BASE - 1)
                        {
                            // for (int dest = 1; dest < ntasks; dest++)
                            foreach (int dest in GetDistantPNums(v1 - PointIndex.BASE))
                            {
                                if (IsExchangeVert(dest, new netgen.PointIndex(v1)) && IsExchangeVert(dest, new netgen.PointIndex(v2)))
                                {
                                    cnt_send[dest - 1]++;
                                }
                            }
                        }
                    }

                    TABLE <int> dest2pair = new TABLE <int>(cnt_send);
                    // for (int dest = 1; dest < ntasks; dest++)
                    for (PointIndex pi = PointIndex.BASE; pi < newnv + PointIndex.BASE; pi++)
                    {
                        PointIndex v1 = mesh.mlbetweennodes[pi][0];
                        PointIndex v2 = mesh.mlbetweennodes[pi][1];
                        if (mesh.mlbetweennodes[pi][0] != PointIndex.BASE - 1)
                        {
                            foreach (int dest in GetDistantPNums(v1 - PointIndex.BASE))
                            {
                                if (IsExchangeVert(dest, new netgen.PointIndex(v1)) && IsExchangeVert(dest, new netgen.PointIndex(v2)))
                                {
                                    dest2pair.Add(dest - 1, pi);
                                }
                            }
                        }
                    }

                    cnt_send = 0;
                    int v1;
                    int v2;
                    for (PointIndex pi = PointIndex.BASE; pi < newnv + PointIndex.BASE; pi++)
                    {
                        PointIndex v1 = mesh.mlbetweennodes[pi][0];
                        PointIndex v2 = mesh.mlbetweennodes[pi][1];
                        if (mesh.mlbetweennodes[pi][0] != PointIndex.BASE - 1)
                        {
                            foreach (int dest in GetDistantPNums(v1 - PointIndex.BASE))
                            {
                                if (IsExchangeVert(dest, new netgen.PointIndex(v2)))
                                {
                                    cnt_send[dest - 1] += 2;
                                }
                            }
                        }
                    }

                    TABLE <int> send_verts = new TABLE <int>(cnt_send);

                    Array <int, PointIndex.BASE> loc2exchange = new Array <int, PointIndex.BASE>(mesh.GetNV());
                    for (int dest = 1; dest < ntasks; dest++)
                    {
                        if (dest != id)
                        {
                            loc2exchange = -1;
                            int cnt = 0;

                            /*
                             * for (PointIndex pi : mesh.Points().Range())
                             * if (IsExchangeVert(dest, pi))
                             *  loc2exchange[pi] = cnt++;
                             */
                            foreach (PointIndex pi in dest2vert[dest - 1])
                            {
                                loc2exchange[pi] = cnt++;
                            }

                            // for (PointIndex pi = PointIndex::BASE; pi < newnv+PointIndex::BASE; pi++)
                            foreach (PointIndex pi in dest2pair[dest - 1])
                            {
                                PointIndex v1 = mesh.mlbetweennodes[pi][0];
                                PointIndex v2 = mesh.mlbetweennodes[pi][1];
                                if (mesh.mlbetweennodes[pi][0] != PointIndex.BASE - 1)
                                {
                                    if (IsExchangeVert(dest, new netgen.PointIndex(v1)) && IsExchangeVert(dest, new netgen.PointIndex(v2)))
                                    {
                                        send_verts.Add(dest - 1, loc2exchange[v1]);
                                        send_verts.Add(dest - 1, loc2exchange[v2]);
                                    }
                                }
                            }
                        }
                    }

                    TABLE <int> recv_verts = new TABLE <int>(ntasks - 1);
                    netgen.GlobalMembers.MyMPI_ExchangeTable(send_verts, recv_verts, MPI_TAG_MESH + 9, MPI_LocalComm);

                    for (int dest = 1; dest < ntasks; dest++)
                    {
                        if (dest != id)
                        {
                            loc2exchange = -1;
                            int cnt = 0;

                            /*
                             * for (PointIndex pi : mesh.Points().Range())
                             * if (IsExchangeVert(dest, pi))
                             *  loc2exchange[pi] = cnt++;
                             */
                            foreach (PointIndex pi in dest2vert[dest - 1])
                            {
                                loc2exchange[pi] = cnt++;
                            }

                            FlatArray <int> recvarray = recv_verts[dest - 1];
                            for (int ii = 0; ii < recvarray.Size(); ii += 2)
                            {
                                foreach (PointIndex pi in dest2pair[dest - 1])
                                {
                                    // for (PointIndex pi = PointIndex::BASE; pi < newnv+PointIndex::BASE; pi++)
                                    PointIndex v1 = mesh.mlbetweennodes[pi][0];
                                    PointIndex v2 = mesh.mlbetweennodes[pi][1];
                                    if (mesh.mlbetweennodes[pi][0] != PointIndex.BASE - 1)
                                    {
                                        INDEX_2 re = new INDEX_2(recvarray[ii], recvarray[ii + 1]);
                                        INDEX_2 es = new INDEX_2(loc2exchange[v1], loc2exchange[v2]);
                                        if (es == re && !IsExchangeVert(dest, new netgen.PointIndex(pi)))
                                        {
                                            SetDistantPNum(dest, new netgen.PointIndex(pi));
                                            changed = true;
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }

            Array <int> sendarray = new Array <int>();
            Array <int> recvarray = new Array <int>();

            // cout << "UpdateCoarseGrid - edges" << endl;

            // static int timerv = NgProfiler::CreateTimer ("UpdateCoarseGrid - ex vertices");
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	  static int timere = NgProfiler::CreateTimer("UpdateCoarseGrid - ex edges");
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	  static int timerf = NgProfiler::CreateTimer("UpdateCoarseGrid - ex faces");


            NgProfiler.StartTimer(UpdateCoarseGrid_timere);


            int nfa = topology.GetNFaces();
            int ned = topology.GetNEdges();

            // build exchange vertices
            cnt_send = 0;
            foreach (PointIndex pi in mesh.Points().Range())
            {
                foreach (int dist in GetDistantPNums(pi - PointIndex.BASE))
                {
                    cnt_send[dist - 1]++;
                }
            }
            TABLE <int> dest2vert = new TABLE <int>(cnt_send);

            foreach (PointIndex pi in mesh.Points().Range())
            {
                foreach (int dist in GetDistantPNums(pi - PointIndex.BASE))
                {
                    dest2vert.Add(dist - 1, pi);
                }
            }

            // exchange edges
            cnt_send = 0;
            int v1;
            int v2;

            for (int edge = 1; edge <= ned; edge++)
            {
                topology.GetEdgeVertices(edge, ref v1, ref v2);
                for (int dest = 1; dest < ntasks; dest++)
                {
                    if (IsExchangeVert(dest, v1) && IsExchangeVert(dest, v2))
                    {
                        cnt_send[dest - 1] += 1;
                    }
                }
            }

            TABLE <int> dest2edge = new TABLE <int>(cnt_send);

            foreach (int v in cnt_send)
            {
                v *= 2;
            }
            TABLE <int> send_edges = new TABLE <int>(cnt_send);

            for (int edge = 1; edge <= ned; edge++)
            {
                topology.GetEdgeVertices(edge, ref v1, ref v2);
                for (int dest = 1; dest < ntasks; dest++)
                {
                    if (IsExchangeVert(dest, v1) && IsExchangeVert(dest, v2))
                    {
                        dest2edge.Add(dest - 1, edge);
                    }
                }
            }


            Array <int, PointIndex.BASE> loc2exchange = new Array <int, PointIndex.BASE>(mesh.GetNV());

            for (int dest = 1; dest < ntasks; dest++)
            {
                loc2exchange = -1;
                int cnt = 0;
                foreach (PointIndex pi in dest2vert[dest - 1])
                {
                    loc2exchange[pi] = cnt++;
                }

                foreach (int edge in dest2edge[dest - 1])
                {
                    topology.GetEdgeVertices(edge, ref v1, ref v2);
                    if (IsExchangeVert(dest, v1) && IsExchangeVert(dest, v2))
                    {
                        send_edges.Add(dest - 1, loc2exchange[v1]);
                        send_edges.Add(dest - 1, loc2exchange[v2]);
                    }
                }
            }

            // cout << "UpdateCoarseGrid - edges mpi-exchange" << endl;
            TABLE <int> recv_edges = new TABLE <int>(ntasks - 1);

            netgen.GlobalMembers.MyMPI_ExchangeTable(send_edges, recv_edges, MPI_TAG_MESH + 9, MPI_LocalComm);
            // cout << "UpdateCoarseGrid - edges mpi-exchange done" << endl;

            /*
             * for (int dest = 1; dest < ntasks; dest++)
             * {
             * auto ex2loc = dest2vert[dest-1];
             * FlatArray<int> recvarray = recv_edges[dest-1];
             *  for (int ii = 0; ii < recvarray.Size(); ii+=2)
             *    for (int edge : dest2edge[dest-1])
             *      {
             *            topology.GetEdgeVertices (edge, v1, v2);
             *            INDEX_2 re(ex2loc[recvarray[ii]],
             *               ex2loc[recvarray[ii+1]]);
             *            INDEX_2 es(v1, v2);
             *            if (es == re)
             *      SetDistantEdgeNum(dest, edge);
             *      }
             * }
             */

            for (int dest = 1; dest < ntasks; dest++)
            {
                var ex2loc = dest2vert[dest - 1];
                if (ex2loc.Size() == 0)
                {
                    continue;
                }

                INDEX_2_CLOSED_HASHTABLE <int> vert2edge = new INDEX_2_CLOSED_HASHTABLE <int>((uint)(2 * dest2edge[dest - 1].Size() + 10));
                foreach (int edge in dest2edge[dest - 1])
                {
                    topology.GetEdgeVertices(edge, ref v1, ref v2);
                    vert2edge.Set(new INDEX_2(v1, v2), edge);
                }

                FlatArray <int> recvarray = recv_edges[dest - 1];
                for (int ii = 0; ii < recvarray.Size(); ii += 2)
                {
                    INDEX_2 re = new INDEX_2(ex2loc[recvarray[ii]], ex2loc[recvarray[ii + 1]]);
                    if (vert2edge.Used(re))
                    {
                        SetDistantEdgeNum(dest, vert2edge.Get(re));
                    }
                }
            }



            NgProfiler.StopTimer(UpdateCoarseGrid_timere);

            // MPI_Barrier (MPI_LocalComm);

            // cout << "UpdateCoarseGrid - faces" << endl;
            if (mesh.GetDimension() == 3)
            {
                NgProfiler.StartTimer(UpdateCoarseGrid_timerf);
                Array <int> verts = new Array <int>();

                // exchange faces
                cnt_send = 0;
                for (int face = 1; face <= nfa; face++)
                {
                    topology.GetFaceVertices(face, verts);
                    for (int dest = 1; dest < ntasks; dest++)
                    {
                        if (dest != id)
                        {
                            if (IsExchangeVert(dest, verts[0]) && IsExchangeVert(dest, verts[1]) && IsExchangeVert(dest, verts[2]))
                            {
                                cnt_send[dest - 1]++;
                            }
                        }
                    }
                }

                TABLE <int> dest2face = new TABLE <int>(cnt_send);
                for (int face = 1; face <= nfa; face++)
                {
                    topology.GetFaceVertices(face, verts);
                    for (int dest = 1; dest < ntasks; dest++)
                    {
                        if (dest != id)
                        {
                            if (IsExchangeVert(dest, verts[0]) && IsExchangeVert(dest, verts[1]) && IsExchangeVert(dest, verts[2]))
                            {
                                dest2face.Add(dest - 1, face);
                            }
                        }
                    }
                }

                foreach (int c in cnt_send)
                {
                    c *= 3;
                }
                TABLE <int> send_faces = new TABLE <int>(cnt_send);
                Array <int, PointIndex.BASE> loc2exchange = new Array <int, PointIndex.BASE>(mesh.GetNV());
                for (int dest = 1; dest < ntasks; dest++)
                {
                    if (dest != id)
                    {
                        /*
                         * loc2exchange = -1;
                         * int cnt = 0;
                         * for (PointIndex pi : mesh.Points().Range())
                         * if (IsExchangeVert(dest, pi))
                         * loc2exchange[pi] = cnt++;
                         */
                        if (dest2vert[dest - 1].Size() == 0)
                        {
                            continue;
                        }

                        loc2exchange = -1;
                        int cnt = 0;
                        foreach (PointIndex pi in dest2vert[dest - 1])
                        {
                            loc2exchange[pi] = cnt++;
                        }

                        foreach (int face in dest2face[dest - 1])
                        {
                            topology.GetFaceVertices(face, verts);
                            if (IsExchangeVert(dest, verts[0]) && IsExchangeVert(dest, verts[1]) && IsExchangeVert(dest, verts[2]))
                            {
                                send_faces.Add(dest - 1, loc2exchange[verts[0]]);
                                send_faces.Add(dest - 1, loc2exchange[verts[1]]);
                                send_faces.Add(dest - 1, loc2exchange[verts[2]]);
                            }
                        }
                    }
                }

                // cout << "UpdateCoarseGrid - faces mpi-exchange" << endl;
                TABLE <int> recv_faces = new TABLE <int>(ntasks - 1);
                netgen.GlobalMembers.MyMPI_ExchangeTable(send_faces, recv_faces, MPI_TAG_MESH + 9, MPI_LocalComm);
                // cout << "UpdateCoarseGrid - faces mpi-exchange done" << endl;

                /*
                 * for (int dest = 1; dest < ntasks; dest++)
                 * if (dest != id)
                 *  {
                 *    loc2exchange = -1;
                 *    int cnt = 0;
                 *    for (PointIndex pi : dest2vert[dest-1])
                 *    loc2exchange[pi] = cnt++;
                 *
                 *    FlatArray<int> recvarray = recv_faces[dest-1];
                 *    for (int ii = 0; ii < recvarray.Size(); ii+=3)
                 *    for (int face : dest2face[dest-1])
                 *      {
                 *        topology.GetFaceVertices (face, verts);
                 *        INDEX_3 re(recvarray[ii], recvarray[ii+1], recvarray[ii+2]);
                 *        INDEX_3 es(loc2exchange[verts[0]], loc2exchange[verts[1]], loc2exchange[verts[2]]);
                 *        if (es == re)
                 *          SetDistantFaceNum(dest, face);
                 *      }
                 *  }
                 */


                for (int dest = 1; dest < ntasks; dest++)
                {
                    var ex2loc = dest2vert[dest - 1];
                    if (ex2loc.Size() == 0)
                    {
                        continue;
                    }

                    INDEX_3_CLOSED_HASHTABLE <int> vert2face = new INDEX_3_CLOSED_HASHTABLE <int>(2 * dest2face[dest - 1].Size() + 10);
                    foreach (int face in dest2face[dest - 1])
                    {
                        topology.GetFaceVertices(face, verts);
                        vert2face.Set(new INDEX_3(verts[0], verts[1], verts[2]), face);
                    }

                    FlatArray <int> recvarray = recv_faces[dest - 1];
                    for (int ii = 0; ii < recvarray.Size(); ii += 3)
                    {
                        INDEX_3 re = new INDEX_3(ex2loc[recvarray[ii]], ex2loc[recvarray[ii + 1]], ex2loc[recvarray[ii + 2]]);
                        if (vert2face.Used(re))
                        {
                            SetDistantFaceNum(dest, vert2face.Get(re));
                        }
                    }
                }



                /*
                 * Array<int,1> glob2loc;
                 *
                 * int maxface = 0;
                 * for (int face = 1; face <= nfa; face++)
                 * maxface = max (maxface, GetGlobalFaceNum (face));
                 *
                 * // glob2loc.SetSize (nfaglob);
                 * glob2loc.SetSize (maxface);
                 * glob2loc = -1;
                 *
                 * for (int loc = 1; loc <= nfa; loc++)
                 * glob2loc[GetGlobalFaceNum(loc)] = loc;
                 *
                 * cnt_send = 0;
                 * Array<int> verts;
                 * for (int face = 1; face <= nfa; face++)
                 * {
                 *  topology.GetFaceVertices (face, verts);
                 *  for (int dest = 1; dest < ntasks; dest++)
                 *    if (IsExchangeVert (dest, verts[0]) &&
                 *      IsExchangeVert (dest, verts[1]) &&
                 *      IsExchangeVert (dest, verts[2]))
                 *    {
                 *      cnt_send[dest-1]+=2;
                 *    }
                 * }
                 *
                 * TABLE<int> send_faces(cnt_send);
                 * for (int face = 1; face <= nfa; face++)
                 * {
                 *  topology.GetFaceVertices (face, verts);
                 *  for (int dest = 1; dest < ntasks; dest++)
                 *    {
                 *    if (IsExchangeVert (dest, verts[0]) &&
                 *        IsExchangeVert (dest, verts[1]) &&
                 *        IsExchangeVert (dest, verts[2]))
                 *      {
                 *        send_faces.Add (dest-1, GetGlobalFaceNum(face));
                 *        send_faces.Add (dest-1, face);
                 *      }
                 *    }
                 * }
                 * TABLE<int> recv_faces(ntasks-1);
                 * MyMPI_ExchangeTable (send_faces, recv_faces, MPI_TAG_MESH+8, MPI_LocalComm);
                 *
                 * for (int sender = 1; sender < ntasks; sender ++)
                 * if (id != sender)
                 *  {
                 *    FlatArray<int> recvarray = recv_faces[sender-1];
                 *
                 *    for (int ii = 0; ii < recvarray.Size(); )
                 *    {
                 *      int globf = recvarray[ii++];
                 *      int distf = recvarray[ii++];
                 *
                 *      if (globf <= maxface)
                 *        {
                 *          int locf = glob2loc[globf];
                 *          if (locf != -1)
                 *            SetDistantFaceNum (sender, locf);
                 *        }
                 *    }
                 *  }
                 */

                NgProfiler.StopTimer(UpdateCoarseGrid_timerf);
            }
            // cout << "UpdateCoarseGrid - done" << endl;

            is_updated = true;
        }
Esempio n. 9
0
    public void EdgeSwapping(Mesh mesh, int usemetric)
    {
        if (!faceindex)
        {
            if (usemetric != 0)
            {
                PrintMessage(3, "Edgeswapping, metric");
            }
            else
            {
                PrintMessage(3, "Edgeswapping, topological");
            }

            for (faceindex = 1; faceindex <= mesh.GetNFD(); faceindex++)
            {
                EdgeSwapping(mesh, usemetric);

                if (multithread.terminate)
                {
                    throw new Exception("Meshing stopped");
                }
            }

            faceindex = 0;
            mesh.CalcSurfacesOfNode();
            return;
        }


//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	static int timer = NgProfiler::CreateTimer("EdgeSwapping 2D");
        NgProfiler.RegionTimer reg1 = new NgProfiler.RegionTimer(EdgeSwapping_timer);

//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	static int timerstart = NgProfiler::CreateTimer("EdgeSwapping 2D start");
        NgProfiler.StartTimer(EdgeSwapping_timerstart);


        Array <SurfaceElementIndex> seia = new Array <SurfaceElementIndex>();

        mesh.GetSurfaceElementsOfFace(faceindex, seia);

        for (int i = 0; i < seia.Size(); i++)
        {
            if (mesh[seia[i]].GetNP() != 3)
            {
                GenericImprove(mesh);
                return;
            }
        }

        int surfnr = mesh.GetFaceDescriptor(faceindex).SurfNr();

        Array <Neighbour>             neighbors = new Array <Neighbour>(mesh.GetNSE());
        INDEX_2_HASHTABLE <trionedge> other     = new INDEX_2_HASHTABLE <trionedge>(seia.Size() + 2);


        Array <char> swapped = new Array <char>(mesh.GetNSE());
        Array <int, PointIndex.BASE>    pdef   = new Array <int, PointIndex.BASE>(mesh.GetNP());
        Array <double, PointIndex.BASE> pangle = new Array <double, PointIndex.BASE>(mesh.GetNP());


        // int e;
        // double d;
        // Vec3d nv1, nv2;

        // double loch(-1);
        double[] minangle = { 0, 1.481, 2.565, 3.627, 4.683, 5.736, 7, 9 };


        for (int i = 0; i < seia.Size(); i++)
        {
            Element2d sel = mesh[seia[i]];
            for (int j = 0; j < 3; j++)
            {
                pangle[sel[j]] = 0.0;
            }
        }
        // pangle = 0;

        for (int i = 0; i < seia.Size(); i++)
        {
            Element2d sel = mesh[seia[i]];
            for (int j = 0; j < 3; j++)
            {
                POINTTYPE typ = mesh[sel[j]].Type();
                if (typ == FIXEDPOINT || typ == EDGEPOINT)
                {
                    pangle[sel[j]] += Angle(mesh[sel[(j + 1) % 3]] - mesh[sel[j]], mesh[sel[(j + 2) % 3]] - mesh[sel[j]]);
                }
            }
        }

        // for (PointIndex pi = PointIndex::BASE;
        // pi < mesh.GetNP()+PointIndex::BASE; pi++)

        // pdef = 0;
        for (int i = 0; i < seia.Size(); i++)
        {
            Element2d sel = mesh[seia[i]];
            for (int j = 0; j < 3; j++)
            {
                PointIndex pi = sel[j];
                if (mesh[pi].Type() == INNERPOINT || mesh[pi].Type() == SURFACEPOINT)
                {
                    pdef[pi] = -6;
                }
                else
                {
                    for (int j = 0; j < 8; j++)
                    {
                        if (pangle[pi] >= minangle[j])
                        {
                            pdef[pi] = -1 - j;
                        }
                    }
                }
            }
        }

        for (int i = 0; i < seia.Size(); i++)
        {
            Element2d sel = mesh[seia[i]];
            for (int j = 0; j < 3; j++)
            {
                pdef[sel[j]]++;
            }
        }

        for (int i = 0; i < seia.Size(); i++)
        {
            for (int j = 0; j < 3; j++)
            {
                neighbors[seia[i]].SetNr(j, -1);
                neighbors[seia[i]].SetOrientation(j, 0);
            }
        }

        /*
         * Array<Vec3d> normals(mesh.GetNP());
         * for (i = 1; i <= mesh.GetNSE(); i++)
         * {
         * Element2d & hel = mesh.SurfaceElement(i);
         * if (hel.GetIndex() == faceindex)
         * for (k = 1; k <= 3; k++)
         * {
         * int pi = hel.PNum(k);
         * SelectSurfaceOfPoint (mesh.Point(pi), hel.GeomInfoPi(k));
         * int surfi = mesh.GetFaceDescriptor(faceindex).SurfNr();
         * GetNormalVector (surfi, mesh.Point(pi), normals.Elem(pi));
         * normals.Elem(pi) /= normals.Elem(pi).Length();
         * }
         * }
         */

        for (int i = 0; i < seia.Size(); i++)
        {
            Element2d sel = mesh[seia[i]];

            for (int j = 0; j < 3; j++)
            {
                PointIndex pi1 = sel.PNumMod(j + 2);
                PointIndex pi2 = sel.PNumMod(j + 3);

                //	    double loch = mesh.GetH(mesh[pi1]);

                INDEX_2 edge = new INDEX_2(pi1, pi2);
                edge.Sort();

                if (mesh.IsSegment(pi1, pi2))
                {
                    continue;
                }

                /*
                 * if (segments.Used (edge))
                 * continue;
                 */
                INDEX_2 ii2 = new INDEX_2(pi1, pi2);
                if (other.Used(ii2))
                {
                    // INDEX_2 i2s(ii2);
                    // i2s.Sort();

                    int i2 = other.Get(ii2).tnr;
                    int j2 = other.Get(ii2).sidenr;

                    neighbors[seia[i]].SetNr(j, i2);
                    neighbors[seia[i]].SetOrientation(j, j2);
                    neighbors[i2].SetNr(j2, seia[i]);
                    neighbors[i2].SetOrientation(j2, j);
                }
                else
                {
                    other.Set(new INDEX_2(pi2, pi1), new trionedge(seia[i], j));
                }
            }
        }

        for (int i = 0; i < seia.Size(); i++)
        {
            swapped[seia[i]] = 0;
        }

        NgProfiler.StopTimer(EdgeSwapping_timerstart);



        int t    = 4;
        int done = 0;

        while (done == 0 && t >= 2)
        {
            for (int i = 0; i < seia.Size(); i++)
            {
                SurfaceElementIndex t1 = seia[i];

                if (mesh[t1].IsDeleted())
                {
                    continue;
                }

                if (mesh[t1].GetIndex() != faceindex)
                {
                    continue;
                }

                if (multithread.terminate)
                {
                    throw new Exception("Meshing stopped");
                }

                for (int o1 = 0; o1 < 3; o1++)
                {
                    bool should;


                    SurfaceElementIndex t2 = neighbors[t1].GetNr(o1);
                    int o2 = neighbors[t1].GetOrientation(o1);

                    if (t2 == -1)
                    {
                        continue;
                    }
                    if (swapped[t1] || swapped[t2])
                    {
                        continue;
                    }


                    PointIndex pi1 = mesh[t1].PNumMod(o1 + 1 + 1);
                    PointIndex pi2 = mesh[t1].PNumMod(o1 + 1 + 2);
                    PointIndex pi3 = mesh[t1].PNumMod(o1 + 1);
                    PointIndex pi4 = mesh[t2].PNumMod(o2 + 1);

                    PointGeomInfo gi1 = mesh[t1].GeomInfoPiMod(o1 + 1 + 1);
                    PointGeomInfo gi2 = mesh[t1].GeomInfoPiMod(o1 + 1 + 2);
                    PointGeomInfo gi3 = mesh[t1].GeomInfoPiMod(o1 + 1);
                    PointGeomInfo gi4 = mesh[t2].GeomInfoPiMod(o2 + 1);

                    bool allowswap = true;

                    Vec <3> auxvec1 = mesh[pi3] - mesh[pi4];
                    Vec <3> auxvec2 = mesh[pi1] - mesh[pi4];

                    allowswap = allowswap && ngsimd.GlobalMembers.fabs(1.0 - (auxvec1 * auxvec2) / (auxvec1.Length() * auxvec2.Length())) > 1e-4;

                    if (!allowswap)
                    {
                        continue;
                    }

                    // normal of new
                    Vec <3> nv1 = netgen.GlobalMembers.Cross(auxvec1, auxvec2);

                    auxvec1   = new mesh.Point(pi4) - new mesh.Point(pi3);
                    auxvec2   = new mesh.Point(pi2) - new mesh.Point(pi3);
                    allowswap = allowswap && ngsimd.GlobalMembers.fabs(1.0 - (auxvec1 * auxvec2) / (auxvec1.Length() * auxvec2.Length())) > 1e-4;


                    if (!allowswap)
                    {
                        continue;
                    }

                    Vec <3> nv2 = netgen.GlobalMembers.Cross(auxvec1, auxvec2);


                    // normals of original
                    Vec <3> nv3 = netgen.GlobalMembers.Cross(mesh[pi1] - mesh[pi4], mesh[pi2] - mesh[pi4]);
                    Vec <3> nv4 = netgen.GlobalMembers.Cross(mesh[pi2] - mesh[pi3], mesh[pi1] - mesh[pi3]);

                    nv3 *= -1;
                    nv4 *= -1;
                    nv3.Normalize();
                    nv4.Normalize();

                    nv1.Normalize();
                    nv2.Normalize();

                    Vec <3> nvp3, nvp4;
                    SelectSurfaceOfPoint(new mesh.Point(pi3), gi3);
                    GetNormalVector(surfnr, new mesh.Point(pi3), gi3, nvp3);

                    nvp3.Normalize();

                    SelectSurfaceOfPoint(new mesh.Point(pi4), gi4);
                    GetNormalVector(surfnr, new mesh.Point(pi4), gi4, nvp4);

                    nvp4.Normalize();



                    double critval = ngsimd.GlobalMembers.cos(DefineConstants.M_PI / 6); // 30 degree
                    allowswap = allowswap && (nv1 * nvp3 > critval) && (nv1 * nvp4 > critval) && (nv2 * nvp3 > critval) && (nv2 * nvp4 > critval) && (nvp3 * nv3 > critval) && (nvp4 * nv4 > critval);


                    double horder = netgen.GlobalMembers.Dist(new mesh.Point(pi1), new mesh.Point(pi2));

                    if (nv1.Length() > 1e-3 * horder * horder && nv2.Length() > 1e-3 * horder * horder && allowswap)
                    {
                        if (usemetric == 0)
                        {
                            int    e = pdef[pi1] + pdef[pi2] - pdef[pi3] - pdef[pi4];
                            double d = netgen.GlobalMembers.Dist2(new mesh.Point(pi1), new mesh.Point(pi2)) - netgen.GlobalMembers.Dist2(new mesh.Point(pi3), new mesh.Point(pi4));

                            should = e >= t && (e > 2 || d > 0);
                        }
                        else
                        {
                            double loch = mesh.GetH(mesh[pi1]);
                            should = CalcTriangleBadness(new mesh.Point(pi4), new mesh.Point(pi3), new mesh.Point(pi1), metricweight, loch) + CalcTriangleBadness(new mesh.Point(pi3), new mesh.Point(pi4), new mesh.Point(pi2), metricweight, loch) < CalcTriangleBadness(new mesh.Point(pi1), new mesh.Point(pi2), new mesh.Point(pi3), metricweight, loch) + CalcTriangleBadness(new mesh.Point(pi2), new mesh.Point(pi1), new mesh.Point(pi4), metricweight, loch);
                        }

                        if (allowswap)
                        {
                            Element2d sw1 = new Element2d(pi4, pi3, pi1);
                            Element2d sw2 = new Element2d(pi3, pi4, pi2);

                            int legal1 = mesh.LegalTrig(mesh.SurfaceElement(t1)) + mesh.LegalTrig(mesh.SurfaceElement(t2));
                            int legal2 = mesh.LegalTrig(sw1) + mesh.LegalTrig(sw2);

                            if (legal1 < legal2)
                            {
                                should = true;
                            }
                            if (legal2 < legal1)
                            {
                                should = false;
                            }
                        }

                        if (should)
                        {
                            // do swapping !

                            done = 1;

                            mesh[t1].PNum(1) = pi1;
                            mesh[t1].PNum(2) = pi4;
                            mesh[t1].PNum(3) = pi3;

                            mesh[t2].PNum(1) = pi2;
                            mesh[t2].PNum(2) = pi3;
                            mesh[t2].PNum(3) = pi4;

                            mesh[t1].GeomInfoPi(1) = gi1;
                            mesh[t1].GeomInfoPi(2) = gi4;
                            mesh[t1].GeomInfoPi(3) = gi3;

                            mesh[t2].GeomInfoPi(1) = gi2;
                            mesh[t2].GeomInfoPi(2) = gi3;
                            mesh[t2].GeomInfoPi(3) = gi4;

                            pdef[pi1]--;
                            pdef[pi2]--;
                            pdef[pi3]++;
                            pdef[pi4]++;

                            swapped[t1] = 1;
                            swapped[t2] = 1;
                        }
                    }
                }
            }
            t--;
        }

        mesh.SetNextTimeStamp();
    }
Esempio n. 10
0
    public void CombineImprove(Mesh mesh)
    {
        if (!faceindex)
        {
            PrintMessage(3, "Combine improve");

            for (faceindex = 1; faceindex <= mesh.GetNFD(); faceindex++)
            {
                CombineImprove(mesh);

                if (multithread.terminate)
                {
                    throw new Exception("Meshing stopped");
                }
            }
            faceindex = 0;
            return;
        }


//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	static int timer = NgProfiler::CreateTimer("Combineimprove 2D");
        NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(CombineImprove_timer);

//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	static int timerstart = NgProfiler::CreateTimer("Combineimprove 2D start");
        NgProfiler.StartTimer(CombineImprove_timerstart);


//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
//	static int timerstart1 = NgProfiler::CreateTimer("Combineimprove 2D start1");
        NgProfiler.StartTimer(CombineImprove_timerstart1);



        // int i, j, k, l;
        // PointIndex pi;
        // SurfaceElementIndex sei;


        Array <SurfaceElementIndex> seia = new Array <SurfaceElementIndex>();

        mesh.GetSurfaceElementsOfFace(faceindex, seia);


        for (int i = 0; i < seia.Size(); i++)
        {
            if (mesh[seia[i]].GetNP() != 3)
            {
                return;
            }
        }



        int surfnr = 0;

        if (faceindex)
        {
            surfnr = mesh.GetFaceDescriptor(faceindex).SurfNr();
        }


        // PointIndex pi1, pi2;
        // MeshPoint p1, p2, pnew;
        double  bad1;
        double  bad2;
        Vec <3> nv;

        int np = mesh.GetNP();
        //int nse = mesh.GetNSE();

        TABLE <SurfaceElementIndex, PointIndex.BASE> elementsonnode = new TABLE <SurfaceElementIndex, PointIndex.BASE>(np);
        Array <SurfaceElementIndex> hasonepi  = new Array <SurfaceElementIndex>();
        Array <SurfaceElementIndex> hasbothpi = new Array <SurfaceElementIndex>();

        for (int i = 0; i < seia.Size(); i++)
        {
            Element2d el = mesh[seia[i]];
            for (int j = 0; j < el.GetNP(); j++)
            {
                elementsonnode.Add(el[j], seia[i]);
            }
        }

        Array <bool, PointIndex.BASE> @fixed = new Array <bool, PointIndex.BASE>(np);

        @fixed = false;

        NgProfiler.StopTimer(CombineImprove_timerstart1);

        /*
         * for (SegmentIndex si = 0; si < mesh.GetNSeg(); si++)
         * {
         * INDEX_2 i2(mesh[si][0], mesh[si][1]);
         * fixed[i2.I1()] = true;
         * fixed[i2.I2()] = true;
         * }
         */

        for (int i = 0; i < seia.Size(); i++)
        {
            Element2d sel = mesh[seia[i]];
            for (int j = 0; j < sel.GetNP(); j++)
            {
                PointIndex pi1 = sel.PNumMod(j + 2);
                PointIndex pi2 = sel.PNumMod(j + 3);
                if (mesh.IsSegment(pi1, pi2))
                {
                    @fixed[pi1] = true;
                    @fixed[pi2] = true;
                }
            }
        }



        for (int i = 0; i < mesh.LockedPoints().Size(); i++)
        {
            @fixed[mesh.LockedPoints()[i]] = true;
        }



        Array <Vec <3>, PointIndex.BASE> normals = new Array <Vec <3>, PointIndex.BASE>(np);

        for (PointIndex pi = mesh.Points().Begin(); pi < mesh.Points().End(); pi++)
        {
            if (elementsonnode[pi].Size())
            {
                Element2d hel = mesh[elementsonnode[pi][0]];
                for (int k = 0; k < 3; k++)
                {
                    if (hel[k] == pi)
                    {
                        SelectSurfaceOfPoint(mesh[pi], hel.GeomInfoPi(k + 1));
                        GetNormalVector(surfnr, mesh[pi], hel.GeomInfoPi(k + 1), normals[pi]);
                        break;
                    }
                }
            }
        }

        NgProfiler.StopTimer(CombineImprove_timerstart);

        for (int i = 0; i < seia.Size(); i++)
        {
            SurfaceElementIndex sei  = seia[i];
            Element2d           elem = mesh[sei];
            if (elem.IsDeleted())
            {
                continue;
            }

            for (int j = 0; j < 3; j++)
            {
                PointIndex pi1 = elem[j];
                PointIndex pi2 = elem[(j + 1) % 3];

                if (pi1 < PointIndex.BASE || pi2 < PointIndex.BASE)
                {
                    continue;
                }

                /*
                 * INDEX_2 i2(pi1, pi2);
                 * i2.Sort();
                 * if (segmentht.Used(i2))
                 * continue;
                 */

                bool debugflag = false;

                if (debugflag)
                {
                    (*testout) << "Combineimprove, face = " << faceindex << "pi1 = " << pi1 << " pi2 = " << pi2 << "\n";
                }

                /*
                 * // save version:
                 * if (fixed.Get(pi1) || fixed.Get(pi2))
                 * continue;
                 * if (pi2 < pi1) swap (pi1, pi2);
                 */

                // more general
                if (@fixed[pi2])
                {
                    netgen.GlobalMembers.Swap(ref pi1, ref pi2);
                }

                if (@fixed[pi2])
                {
                    continue;
                }

                double loch = mesh.GetH(mesh[pi1]);

                INDEX_2 si2 = new INDEX_2(pi1, pi2);
                si2.Sort();

                /*
                 * if (edgetested.Used (si2))
                 * continue;
                 * edgetested.Set (si2, 1);
                 */

                hasonepi.SetSize(0);
                hasbothpi.SetSize(0);

                for (int k = 0; k < elementsonnode[pi1].Size(); k++)
                {
                    Element2d el2 = mesh[elementsonnode[pi1][k]];

                    if (el2.IsDeleted())
                    {
                        continue;
                    }

                    if (el2[0] == pi2 || el2[1] == pi2 || el2[2] == pi2)
                    {
                        hasbothpi.Append(elementsonnode[pi1][k]);
                        nv = netgen.GlobalMembers.Cross(new Vec3d(mesh[el2[0]], mesh[el2[1]]), new Vec3d(mesh[el2[0]], mesh[el2[2]]));
                    }
                    else
                    {
                        hasonepi.Append(elementsonnode[pi1][k]);
                    }
                }


                Element2d hel = mesh[hasbothpi[0]];
                for (int k = 0; k < 3; k++)
                {
                    if (hel[k] == pi1)
                    {
                        SelectSurfaceOfPoint(mesh[pi1], hel.GeomInfoPi(k + 1));
                        GetNormalVector(surfnr, mesh[pi1], hel.GeomInfoPi(k + 1), nv);
                        break;
                    }
                }

                //	  nv = normals.Get(pi1);



                for (int k = 0; k < elementsonnode[pi2].Size(); k++)
                {
                    Element2d el2 = mesh[elementsonnode[pi2][k]];
                    if (el2.IsDeleted())
                    {
                        continue;
                    }

                    if (el2[0] == pi1 || el2[1] == pi1 || el2[2] == pi1)
                    {
                        ;
                    }
                    else
                    {
                        hasonepi.Append(elementsonnode[pi2][k]);
                    }
                }

                bad1 = 0;
                int illegal1 = 0;
                int illegal2 = 0;
                for (int k = 0; k < hasonepi.Size(); k++)
                {
                    Element2d el = mesh[hasonepi[k]];
                    bad1     += CalcTriangleBadness(mesh[el[0]], mesh[el[1]], mesh[el[2]], nv, -1, loch);
                    illegal1 += 1 - mesh.LegalTrig(el);
                }

                for (int k = 0; k < hasbothpi.Size(); k++)
                {
                    Element2d el = mesh[hasbothpi[k]];
                    bad1     += CalcTriangleBadness(mesh[el[0]], mesh[el[1]], mesh[el[2]], nv, -1, loch);
                    illegal1 += 1 - mesh.LegalTrig(el);
                }
                bad1 /= (hasonepi.Size() + hasbothpi.Size());

                MeshPoint p1 = mesh[pi1];
                MeshPoint p2 = mesh[pi2];

                MeshPoint pnew = new MeshPoint(p1);
                mesh[pi1] = pnew;
                mesh[pi2] = pnew;

                bad2 = 0;
                for (int k = 0; k < hasonepi.Size(); k++)
                {
                    Element2d el  = mesh[hasonepi[k]];
                    double    err = CalcTriangleBadness(mesh[el[0]], mesh[el[1]], mesh[el[2]], nv, -1, loch);
                    bad2 += err;

                    Vec <3> hnv = netgen.GlobalMembers.Cross(new Vec3d(mesh[el[0]], mesh[el[1]]), new Vec3d(mesh[el[0]], mesh[el[2]]));
                    if (hnv * nv < 0)
                    {
                        bad2 += 1e10;
                    }

                    for (int l = 0; l < 3; l++)
                    {
                        if ((normals[el[l]] * nv) < 0.5)
                        {
                            bad2 += 1e10;
                        }
                    }

                    illegal2 += 1 - mesh.LegalTrig(el);
                }
                bad2 /= hasonepi.Size();

                mesh[pi1] = p1;
                mesh[pi2] = p2;


                if (debugflag)
                {
                    (*testout) << "bad1 = " << bad1 << ", bad2 = " << bad2 << "\n";
                }


                bool should = (bad2 < bad1 && bad2 < 1e4);
                if (bad2 < 1e4)
                {
                    if (illegal1 > illegal2)
                    {
                        should = true;
                    }
                    if (illegal2 > illegal1)
                    {
                        should = false;
                    }
                }


                if (should)
                {
                    /*
                     * (*testout) << "combine !" << endl;
                     * (*testout) << "bad1 = " << bad1 << ", bad2 = " << bad2 << endl;
                     * (*testout) << "illegal1 = " << illegal1 << ", illegal2 = " << illegal2 << endl;
                     * (*testout) << "loch = " << loch << endl;
                     */

                    mesh[pi1] = pnew;
                    PointGeomInfo gi = new PointGeomInfo();
                    // bool gi_set(false);


                    Element2d el1p = new Element2d(null);
                    int       l    = 0;
                    while (mesh[elementsonnode[pi1][l]].IsDeleted() && l < elementsonnode.EntrySize(pi1))
                    {
                        l++;
                    }
                    if (l < elementsonnode.EntrySize(pi1))
                    {
                        el1p = mesh[elementsonnode[pi1][l]];
                    }
                    else
                    {
                        cerr << "OOPS!" << "\n";
                    }

                    for (l = 0; l < el1p.GetNP(); l++)
                    {
                        if (el1p[l] == pi1)
                        {
                            gi = el1p.GeomInfoPi(l + 1);
                            // gi_set = true;
                        }
                    }

                    // (*testout) << "Connect point " << pi2 << " to " << pi1 << "\n";
                    for (int k = 0; k < elementsonnode[pi2].Size(); k++)
                    {
                        Element2d el = mesh[elementsonnode[pi2][k]];
                        if (el.IsDeleted())
                        {
                            continue;
                        }
                        elementsonnode.Add(pi1, elementsonnode[pi2][k]);

                        bool haspi1 = false;
                        for (l = 0; l < el.GetNP(); l++)
                        {
                            if (el[l] == pi1)
                            {
                                haspi1 = true;
                            }
                        }
                        if (haspi1)
                        {
                            continue;
                        }

                        for (int l = 0; l < el.GetNP(); l++)
                        {
                            if (el[l] == pi2)
                            {
                                el[l] = pi1;
                                el.GeomInfoPi(l + 1) = gi;
                            }

                            @fixed[el[l]] = true;
                        }
                    }

                    /*
                     * for (k = 0; k < hasbothpi.Size(); k++)
                     * {
                     * cout << mesh[hasbothpi[k]] << endl;
                     * for (l = 0; l < 3; l++)
                     * cout << mesh[mesh[hasbothpi[k]][l]] << " ";
                     * cout << endl;
                     * }
                     */

                    for (int k = 0; k < hasbothpi.Size(); k++)
                    {
                        mesh[hasbothpi[k]].Delete();

                        /*
                         * for (l = 0; l < 4; l++)
                         * mesh[hasbothpi[k]][l] = PointIndex::BASE-1;
                         */
                    }
                }
            }
        }

        //  mesh.Compress();
        mesh.SetNextTimeStamp();
    }