mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-24 21:10:33 +05:00
1266 lines
30 KiB
C++
1266 lines
30 KiB
C++
#include <mystdlib.h>
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#include "meshing.hpp"
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namespace netgen
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{
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double minother;
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double minwithoutother;
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MeshingStat3d :: MeshingStat3d ()
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{
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cntsucc = cnttrials = cntelem = qualclass = 0;
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vol0 = h = 1;
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problemindex = 1;
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}
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Meshing3 :: Meshing3 (const string & rulefilename)
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{
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tolfak = 1;
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LoadRules (rulefilename.c_str(), NULL);
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adfront = new AdFront3;
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problems.SetSize (rules.Size());
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foundmap.SetSize (rules.Size());
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canuse.SetSize (rules.Size());
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ruleused.SetSize (rules.Size());
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for (int i = 1; i <= rules.Size(); i++)
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{
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problems.Elem(i) = new char[255];
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foundmap.Elem(i) = 0;
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canuse.Elem(i) = 0;
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ruleused.Elem(i) = 0;
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}
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}
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Meshing3 :: Meshing3 (const char ** rulep)
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{
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tolfak = 1;
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LoadRules (NULL, rulep);
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adfront = new AdFront3;
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problems.SetSize (rules.Size());
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foundmap.SetSize (rules.Size());
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canuse.SetSize (rules.Size());
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ruleused.SetSize (rules.Size());
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for (int i = 0; i < rules.Size(); i++)
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{
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problems[i] = new char[255];
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foundmap[i] = 0;
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canuse[i] = 0;
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ruleused[i] = 0;
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}
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}
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Meshing3 :: ~Meshing3 ()
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{
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delete adfront;
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for (int i = 0; i < rules.Size(); i++)
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{
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delete [] problems[i];
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delete rules[i];
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}
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}
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/*
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// was war das ????
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static double CalcLocH (const NgArray<Point3d> & locpoints,
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const NgArray<MiniElement2d> & locfaces,
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double h)
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{
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return h;
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int i, j;
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double hi, h1, d, dn, sum, weight, wi;
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Point3d p0, pc;
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Vec3d n, v1, v2;
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p0.X() = p0.Y() = p0.Z() = 0;
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for (j = 1; j <= 3; j++)
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{
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p0.X() += locpoints.Get(locfaces.Get(1).PNum(j)).X();
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p0.Y() += locpoints.Get(locfaces.Get(1).PNum(j)).Y();
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p0.Z() += locpoints.Get(locfaces.Get(1).PNum(j)).Z();
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}
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p0.X() /= 3; p0.Y() /= 3; p0.Z() /= 3;
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v1 = locpoints.Get(locfaces.Get(1).PNum(2)) -
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locpoints.Get(locfaces.Get(1).PNum(1));
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v2 = locpoints.Get(locfaces.Get(1).PNum(3)) -
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locpoints.Get(locfaces.Get(1).PNum(1));
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h1 = v1.Length();
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n = Cross (v2, v1);
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n /= n.Length();
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sum = 0;
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weight = 0;
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for(int i = 1; i <= locfaces.Size(); i++)
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{
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pc.X() = pc.Y() = pc.Z() = 0;
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for (j = 1; j <= 3; j++)
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{
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pc.X() += locpoints.Get(locfaces.Get(i).PNum(j)).X();
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pc.Y() += locpoints.Get(locfaces.Get(i).PNum(j)).Y();
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pc.Z() += locpoints.Get(locfaces.Get(i).PNum(j)).Z();
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}
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pc.X() /= 3; pc.Y() /= 3; pc.Z() /= 3;
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d = Dist (p0, pc);
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dn = n * (pc - p0);
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hi = Dist (locpoints.Get(locfaces.Get(i).PNum(1)),
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locpoints.Get(locfaces.Get(i).PNum(2)));
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if (dn > -0.2 * h1)
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{
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wi = 1 / (h1 + d);
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wi *= wi;
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}
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else
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wi = 0;
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sum += hi * wi;
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weight += wi;
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}
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return sum/weight;
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}
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*/
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PointIndex Meshing3 :: AddPoint (const Point3d & p, PointIndex globind)
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{
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return adfront -> AddPoint (p, globind);
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}
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void Meshing3 :: AddBoundaryElement (const Element2d & elem)
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{
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MiniElement2d mini(elem.GetNP());
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for (int j = 0; j < elem.GetNP(); j++)
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mini[j] = elem[j];
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adfront -> AddFace(mini);
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}
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void Meshing3 :: AddBoundaryElement (const MiniElement2d & elem)
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{
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adfront -> AddFace(elem);
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}
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int Meshing3 :: AddConnectedPair (const INDEX_2 & apair)
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{
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return adfront -> AddConnectedPair (apair);
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}
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MESHING3_RESULT Meshing3 ::
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GenerateMesh (Mesh & mesh, const MeshingParameters & mp)
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{
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static Timer t("Meshing3::GenerateMesh"); RegionTimer reg(t);
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// static Timer meshing3_timer_a("Meshing3::GenerateMesh a", 2);
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// static Timer meshing3_timer_b("Meshing3::GenerateMesh b", 2);
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// static Timer meshing3_timer_c("Meshing3::GenerateMesh c", 1);
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// static Timer meshing3_timer_d("Meshing3::GenerateMesh d", 2);
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// static int meshing3_timer = NgProfiler::CreateTimer ("Meshing3::GenerateMesh");
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// static int meshing3_timer_a = NgProfiler::CreateTimer ("Meshing3::GenerateMesh a");
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// static int meshing3_timer_b = NgProfiler::CreateTimer ("Meshing3::GenerateMesh b");
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// static int meshing3_timer_c = NgProfiler::CreateTimer ("Meshing3::GenerateMesh c");
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// static int meshing3_timer_d = NgProfiler::CreateTimer ("Meshing3::GenerateMesh d");
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// NgProfiler::RegionTimer reg (meshing3_timer);
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NgArray<Point3d, PointIndex::BASE> locpoints; // local points
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NgArray<MiniElement2d> locfaces; // local faces
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NgArray<PointIndex, PointIndex::BASE> pindex; // mapping from local to front point numbering
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NgArray<int, PointIndex::BASE> allowpoint; // point is allowed ?
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NgArray<INDEX> findex; // mapping from local to front face numbering
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//INDEX_2_HASHTABLE<int> connectedpairs(100); // connecgted pairs for prism meshing
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NgArray<Point3d, PointIndex::BASE> plainpoints; // points in reference coordinates
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NgArray<int> delpoints, delfaces; // points and lines to be deleted
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NgArray<Element> locelements; // new generated elements
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int j, oldnp, oldnf;
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int found;
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referencetransform trans;
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int rotind;
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Point3d inp;
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float err;
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INDEX locfacesplit; //index for faces in outer area
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bool loktestmode = false;
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int uselocalh = mp.uselocalh;
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// int giveuptol = mp.giveuptol; //
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MeshingStat3d stat; // statistics
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int plotstat_oldne = -1;
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// for star-shaped domain meshing
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NgArray<MeshPoint, PointIndex::BASE> grouppoints;
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NgArray<MiniElement2d> groupfaces;
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NgArray<PointIndex, PointIndex::BASE> grouppindex;
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NgArray<INDEX> groupfindex;
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float minerr;
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int hasfound;
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double tetvol;
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// int giveup = 0;
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NgArray<Point3d> tempnewpoints;
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NgArray<MiniElement2d> tempnewfaces;
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NgArray<int> tempdelfaces;
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NgArray<Element> templocelements;
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stat.h = mp.maxh;
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adfront->SetStartFront (mp.baseelnp);
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found = 0;
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stat.vol0 = adfront -> Volume();
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tetvol = 0;
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stat.qualclass = 1;
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while (1)
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{
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if (multithread.terminate)
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throw NgException ("Meshing stopped");
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// break if advancing front is empty
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if (!mp.baseelnp && adfront->Empty())
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break;
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// break, if advancing front has no elements with
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// mp.baseelnp nodes
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if (mp.baseelnp && adfront->Empty (mp.baseelnp))
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break;
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locpoints.SetSize(0);
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locfaces.SetSize(0);
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locelements.SetSize(0);
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pindex.SetSize(0);
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findex.SetSize(0);
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INDEX_2_HASHTABLE<int> connectedpairs(100); // connected pairs for prism meshing
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// select base-element (will be locface[1])
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// and get local environment of radius (safety * h)
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int baseelem = adfront -> SelectBaseElement ();
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if (mp.baseelnp && adfront->GetFace (baseelem).GetNP() != mp.baseelnp)
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{
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adfront->IncrementClass (baseelem);
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continue;
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}
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const MiniElement2d & bel = adfront->GetFace (baseelem);
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const Point<3> p1 = adfront->GetPoint (bel[0]);
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const Point<3> p2 = adfront->GetPoint (bel[1]);
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const Point<3> p3 = adfront->GetPoint (bel[2]);
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Point<3> pmid = Center (p1, p2, p3);
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double his = (Dist (p1, p2) + Dist(p1, p3) + Dist(p2, p3)) / 3;
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double hshould = mesh.GetH (pmid);
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if (adfront->GetFace (baseelem).GetNP() == 4)
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hshould = max2 (his, hshould);
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double hmax = (his > hshould) ? his : hshould;
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// qualclass should come from baseelem !!!!!
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double hinner = hmax * (1 + stat.qualclass);
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double houter = hmax * (1 + 2 * stat.qualclass);
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// meshing3_timer_a.Start();
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stat.qualclass =
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adfront -> GetLocals (baseelem, locpoints, locfaces,
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pindex, findex, connectedpairs,
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houter, hinner,
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locfacesplit);
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// meshing3_timer_a.Stop();
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// (*testout) << "locfaces = " << endl << locfaces << endl;
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//loktestmode = 1;
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testmode = loktestmode; //changed
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// loktestmode = testmode = (adfront->GetFace (baseelem).GetNP() == 4) && (rules.Size() == 5);
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loktestmode = stat.qualclass > 5;
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if (loktestmode)
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{
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(*testout) << "baseel = " << baseelem << ", ind = " << findex.Get(1) << endl;
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int pi1 = pindex[locfaces[0].PNum(1)];
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int pi2 = pindex[locfaces[0].PNum(2)];
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int pi3 = pindex[locfaces[0].PNum(3)];
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(*testout) << "pi = " << pi1 << ", " << pi2 << ", " << pi3 << endl;
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}
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if (testmode)
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{
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(*testout) << "baseelem = " << baseelem << " qualclass = " << stat.qualclass << endl;
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(*testout) << "locpoints = " << endl << locpoints << endl;
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(*testout) << "connected = " << endl << connectedpairs << endl;
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}
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// loch = CalcLocH (locpoints, locfaces, h);
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stat.nff = adfront->GetNF();
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stat.vol = adfront->Volume();
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if (stat.vol < 0) break;
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oldnp = locpoints.Size();
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oldnf = locfaces.Size();
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allowpoint.SetSize(locpoints.Size());
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if (uselocalh && stat.qualclass <= 3)
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for(int i = 1; i <= allowpoint.Size(); i++)
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{
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allowpoint.Elem(i) =
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(mesh.GetH (locpoints.Get(i)) > 0.4 * hshould / mp.sloppy) ? 2 : 1;
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}
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else
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allowpoint = 2;
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if (stat.qualclass >= mp.starshapeclass &&
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mp.baseelnp != 4)
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{
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// NgProfiler::RegionTimer reg1 (meshing3_timer_b);
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// star-shaped domain removing
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grouppoints.SetSize (0);
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groupfaces.SetSize (0);
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grouppindex.SetSize (0);
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groupfindex.SetSize (0);
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adfront -> GetGroup (findex[0], grouppoints, groupfaces,
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grouppindex, groupfindex);
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bool onlytri = 1;
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for (auto i : groupfaces.Range())
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if (groupfaces[i].GetNP() != 3)
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onlytri = 0;
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if (onlytri && groupfaces.Size() <= 20 + 2*stat.qualclass &&
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FindInnerPoint (grouppoints, groupfaces, inp))
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{
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(*testout) << "inner point found" << endl;
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for(int i = 1; i <= groupfaces.Size(); i++)
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adfront -> DeleteFace (groupfindex.Get(i));
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for(int i = 1; i <= groupfaces.Size(); i++)
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for (j = 1; j <= locfaces.Size(); j++)
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if (findex.Get(j) == groupfindex.Get(i))
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delfaces.Append (j);
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delfaces.SetSize (0);
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INDEX npi;
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Element newel(TET);
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npi = mesh.AddPoint (inp);
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newel.SetNP(4);
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newel.PNum(4) = npi;
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for(int i = 1; i <= groupfaces.Size(); i++)
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{
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for (j = 1; j <= 3; j++)
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{
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newel.PNum(j) =
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adfront->GetGlobalIndex
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(grouppindex.Get(groupfaces.Get(i).PNum(j)));
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}
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mesh.AddVolumeElement (newel);
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}
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continue;
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}
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}
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found = 0;
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hasfound = 0;
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minerr = 1e6;
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// int optother = 0;
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/*
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for(int i = 1; i <= locfaces.Size(); i++)
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{
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(*testout) << "Face " << i << ": ";
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for (j = 1; j <= locfaces.Get(i).GetNP(); j++)
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(*testout) << pindex.Get(locfaces.Get(i).PNum(j)) << " ";
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(*testout) << endl;
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}
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for(int i = 1; i <= locpoints.Size(); i++)
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{
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(*testout) << "p" << i
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<< ", gi = " << pindex.Get(i)
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<< " = " << locpoints.Get(i) << endl;
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}
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*/
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minother = 1e10;
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minwithoutother = 1e10;
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bool impossible = 1;
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for (rotind = 1; rotind <= locfaces[0].GetNP(); rotind++)
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{
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// set transformatino to reference coordinates
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if (locfaces[0].GetNP() == 3)
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{
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trans.Set (locpoints[locfaces[0].PNumMod(1+rotind)],
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locpoints[locfaces[0].PNumMod(2+rotind)],
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locpoints[locfaces[0].PNumMod(3+rotind)], hshould);
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}
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else
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{
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trans.Set (locpoints[locfaces[0].PNumMod(1+rotind)],
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locpoints[locfaces[0].PNumMod(2+rotind)],
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locpoints[locfaces[0].PNumMod(4+rotind)], hshould);
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}
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// trans.ToPlain (locpoints, plainpoints);
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plainpoints.SetSize (locpoints.Size());
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for (auto i : locpoints.Range())
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trans.ToPlain (locpoints[i], plainpoints[i]);
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for (auto i : allowpoint.Range())
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if (plainpoints[i].Z() > 0)
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allowpoint[i] = false;
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stat.cnttrials++;
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if (stat.cnttrials % 100 == 0)
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{
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(*testout) << "\n";
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for(int i = 1; i <= canuse.Size(); i++)
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{
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(*testout) << foundmap.Get(i) << "/"
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<< canuse.Get(i) << "/"
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<< ruleused.Get(i) << " map/can/use rule " << rules.Get(i)->Name() << "\n";
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}
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(*testout) << endl;
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}
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// NgProfiler::StartTimer (meshing3_timer_c);
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// meshing3_timer_c.Start();
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found = ApplyRules (plainpoints, allowpoint,
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locfaces, locfacesplit, connectedpairs,
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locelements, delfaces,
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stat.qualclass, mp.sloppy, rotind, err);
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if (found >= 0) impossible = 0;
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if (found < 0) found = 0;
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// meshing3_timer_c.Stop();
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// NgProfiler::StopTimer (meshing3_timer_c);
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if (!found) loktestmode = 0;
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// NgProfiler::RegionTimer reg2 (meshing3_timer_d);
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if (loktestmode)
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{
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(*testout) << "plainpoints = " << endl << plainpoints << endl;
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(*testout) << "Applyrules found " << found << endl;
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}
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if (found) stat.cntsucc++;
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locpoints.SetSize (plainpoints.Size());
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for (int i = oldnp+1; i <= plainpoints.Size(); i++)
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trans.FromPlain (plainpoints.Elem(i), locpoints.Elem(i));
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// avoid meshing from large to small mesh-size
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if (uselocalh && found && stat.qualclass <= 3)
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{
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for (int i = 1; i <= locelements.Size(); i++)
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{
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Point3d pmin = locpoints[locelements.Get(i).PNum(1)];
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Point3d pmax = pmin;
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for (j = 2; j <= 4; j++)
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{
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const Point3d & hp = locpoints[locelements.Get(i).PNum(j)];
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pmin.SetToMin (hp);
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pmax.SetToMax (hp);
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}
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|
|
if (mesh.GetMinH (pmin, pmax) < 0.4 * hshould / mp.sloppy)
|
|
found = 0;
|
|
}
|
|
}
|
|
if (found)
|
|
{
|
|
for (int i = 1; i <= locelements.Size(); i++)
|
|
for (int j = 1; j <= 4; j++)
|
|
{
|
|
const Point3d & hp = locpoints[locelements.Get(i).PNum(j)];
|
|
if (Dist (hp, pmid) > hinner)
|
|
found = 0;
|
|
}
|
|
}
|
|
|
|
|
|
if (found)
|
|
ruleused.Elem(found)++;
|
|
|
|
|
|
// plotstat->Plot(stat);
|
|
|
|
if (stat.cntelem != plotstat_oldne)
|
|
{
|
|
plotstat_oldne = stat.cntelem;
|
|
|
|
PrintMessageCR (5, "El: ", stat.cntelem,
|
|
// << " trials: " << stat.cnttrials
|
|
" faces: ", stat.nff,
|
|
" vol = ", float(100 * stat.vol / stat.vol0));
|
|
|
|
multithread.percent = 100 - 100.0 * stat.vol / stat.vol0;
|
|
}
|
|
|
|
|
|
if (found && (!hasfound || err < minerr) )
|
|
{
|
|
|
|
if (testmode)
|
|
{
|
|
(*testout) << "found is active, 3" << endl;
|
|
for(int i = 1; i <= plainpoints.Size(); i++)
|
|
{
|
|
(*testout) << "p";
|
|
if (i <= pindex.Size())
|
|
(*testout) << pindex.Get(i) << ": ";
|
|
else
|
|
(*testout) << "new: ";
|
|
(*testout) << plainpoints.Get(i) << endl;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
hasfound = found;
|
|
minerr = err;
|
|
|
|
tempnewpoints.SetSize (0);
|
|
for(int i = oldnp+1; i <= locpoints.Size(); i++)
|
|
tempnewpoints.Append (locpoints.Get(i));
|
|
|
|
tempnewfaces.SetSize (0);
|
|
for(int i = oldnf+1; i <= locfaces.Size(); i++)
|
|
tempnewfaces.Append (locfaces.Get(i));
|
|
|
|
tempdelfaces.SetSize (0);
|
|
for(int i = 1; i <= delfaces.Size(); i++)
|
|
tempdelfaces.Append (delfaces.Get(i));
|
|
|
|
templocelements.SetSize (0);
|
|
for(int i = 1; i <= locelements.Size(); i++)
|
|
templocelements.Append (locelements.Get(i));
|
|
|
|
/*
|
|
optother =
|
|
strcmp (problems[found], "other") == 0;
|
|
*/
|
|
}
|
|
|
|
locpoints.SetSize (oldnp);
|
|
locfaces.SetSize (oldnf);
|
|
delfaces.SetSize (0);
|
|
locelements.SetSize (0);
|
|
}
|
|
|
|
|
|
|
|
if (hasfound)
|
|
{
|
|
|
|
/*
|
|
if (optother)
|
|
(*testout) << "Other is optimal" << endl;
|
|
|
|
if (minother < minwithoutother)
|
|
{
|
|
(*testout) << "Other is better, " << minother << " less " << minwithoutother << endl;
|
|
}
|
|
*/
|
|
|
|
for(int i = 1; i <= tempnewpoints.Size(); i++)
|
|
locpoints.Append (tempnewpoints.Get(i));
|
|
for(int i = 1; i <= tempnewfaces.Size(); i++)
|
|
locfaces.Append (tempnewfaces.Get(i));
|
|
for(int i = 1; i <= tempdelfaces.Size(); i++)
|
|
delfaces.Append (tempdelfaces.Get(i));
|
|
for(int i = 1; i <= templocelements.Size(); i++)
|
|
locelements.Append (templocelements.Get(i));
|
|
|
|
|
|
if (loktestmode)
|
|
{
|
|
(*testout) << "apply rule" << endl;
|
|
for(int i = 1; i <= locpoints.Size(); i++)
|
|
{
|
|
(*testout) << "p";
|
|
if (i <= pindex.Size())
|
|
(*testout) << pindex.Get(i) << ": ";
|
|
else
|
|
(*testout) << "new: ";
|
|
(*testout) << locpoints.Get(i) << endl;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
pindex.SetSize(locpoints.Size());
|
|
|
|
for (int i = oldnp+1; i <= locpoints.Size(); i++)
|
|
{
|
|
PointIndex globind = mesh.AddPoint (locpoints.Get(i));
|
|
pindex.Elem(i) = adfront -> AddPoint (locpoints.Get(i), globind);
|
|
}
|
|
|
|
for (int i = 1; i <= locelements.Size(); i++)
|
|
{
|
|
Point3d * hp1, * hp2, * hp3, * hp4;
|
|
hp1 = &locpoints[locelements.Get(i).PNum(1)];
|
|
hp2 = &locpoints[locelements.Get(i).PNum(2)];
|
|
hp3 = &locpoints[locelements.Get(i).PNum(3)];
|
|
hp4 = &locpoints[locelements.Get(i).PNum(4)];
|
|
|
|
tetvol += (1.0 / 6.0) * ( Cross ( *hp2 - *hp1, *hp3 - *hp1) * (*hp4 - *hp1) );
|
|
|
|
for (j = 1; j <= locelements.Get(i).NP(); j++)
|
|
locelements.Elem(i).PNum(j) =
|
|
adfront -> GetGlobalIndex (pindex[locelements.Get(i).PNum(j)]);
|
|
|
|
mesh.AddVolumeElement (locelements.Get(i));
|
|
stat.cntelem++;
|
|
}
|
|
|
|
for(int i = oldnf+1; i <= locfaces.Size(); i++)
|
|
{
|
|
for (j = 1; j <= locfaces.Get(i).GetNP(); j++)
|
|
locfaces.Elem(i).PNum(j) =
|
|
pindex[locfaces.Get(i).PNum(j)];
|
|
// (*testout) << "add face " << locfaces.Get(i) << endl;
|
|
adfront->AddFace (locfaces.Get(i));
|
|
}
|
|
|
|
for(int i = 1; i <= delfaces.Size(); i++)
|
|
adfront->DeleteFace (findex.Get(delfaces.Get(i)));
|
|
}
|
|
else
|
|
{
|
|
adfront->IncrementClass (findex.Get(1));
|
|
if (impossible && mp.check_impossible)
|
|
{
|
|
(*testout) << "skip face since it is impossible" << endl;
|
|
for (j = 0; j < 100; j++)
|
|
adfront->IncrementClass (findex.Get(1));
|
|
}
|
|
}
|
|
|
|
locelements.SetSize (0);
|
|
delpoints.SetSize(0);
|
|
delfaces.SetSize(0);
|
|
|
|
if (stat.qualclass >= mp.giveuptol)
|
|
break;
|
|
}
|
|
|
|
PrintMessage (5, ""); // line feed after statistics
|
|
|
|
for(int i = 1; i <= ruleused.Size(); i++)
|
|
(*testout) << setw(4) << ruleused.Get(i)
|
|
<< " times used rule " << rules.Get(i) -> Name() << endl;
|
|
|
|
|
|
if (!mp.baseelnp && adfront->Empty())
|
|
return MESHING3_OK;
|
|
|
|
if (mp.baseelnp && adfront->Empty (mp.baseelnp))
|
|
return MESHING3_OK;
|
|
|
|
if (stat.vol < -1e-15)
|
|
return MESHING3_NEGVOL;
|
|
|
|
return MESHING3_NEGVOL;
|
|
}
|
|
|
|
|
|
|
|
|
|
enum blocktyp { BLOCKUNDEF, BLOCKINNER, BLOCKBOUND, BLOCKOUTER };
|
|
|
|
void Meshing3 :: BlockFill (Mesh & mesh, double gh)
|
|
{
|
|
static Timer t("Mesing3::BlockFill"); RegionTimer reg(t);
|
|
|
|
PrintMessage (3, "Block-filling called (obsolete) ");
|
|
|
|
int i, j(0), i1, i2, i3, j1, j2, j3;
|
|
int n1, n2, n3, n, min1, min2, min3, max1, max2, max3;
|
|
int changed, filled;
|
|
double xmin(0), xmax(0), ymin(0), ymax(0), zmin(0), zmax(0);
|
|
double xminb, xmaxb, yminb, ymaxb, zminb, zmaxb;
|
|
//double rad = 0.7 * gh;
|
|
|
|
for(int i = 1; i <= adfront->GetNP(); i++)
|
|
{
|
|
const Point3d & p = adfront->GetPoint(PointIndex(i));
|
|
if (i == 1)
|
|
{
|
|
xmin = xmax = p.X();
|
|
ymin = ymax = p.Y();
|
|
zmin = zmax = p.Z();
|
|
}
|
|
else
|
|
{
|
|
if (p.X() < xmin) xmin = p.X();
|
|
if (p.X() > xmax) xmax = p.X();
|
|
if (p.Y() < ymin) ymin = p.Y();
|
|
if (p.Y() > ymax) ymax = p.Y();
|
|
if (p.Z() < zmin) zmin = p.Z();
|
|
if (p.Z() > zmax) zmax = p.Z();
|
|
}
|
|
}
|
|
|
|
xmin -= 5 * gh;
|
|
ymin -= 5 * gh;
|
|
zmin -= 5 * gh;
|
|
|
|
n1 = int ((xmax-xmin) / gh + 5);
|
|
n2 = int ((ymax-ymin) / gh + 5);
|
|
n3 = int ((zmax-zmin) / gh + 5);
|
|
n = n1 * n2 * n3;
|
|
|
|
PrintMessage (5, "n1 = ", n1, " n2 = ", n2, " n3 = ", n3);
|
|
|
|
NgArray<blocktyp> inner(n);
|
|
NgArray<PointIndex> pointnr(n);
|
|
NgArray<int> frontpointnr(n);
|
|
|
|
|
|
// initialize inner to 1
|
|
|
|
for(int i = 1; i <= n; i++)
|
|
inner.Elem(i) = BLOCKUNDEF;
|
|
|
|
|
|
// set blocks cutting surfaces to 0
|
|
|
|
for(int i = 1; i <= adfront->GetNF(); i++)
|
|
{
|
|
const MiniElement2d & el = adfront->GetFace(i);
|
|
xminb = xmax; xmaxb = xmin;
|
|
yminb = ymax; ymaxb = ymin;
|
|
zminb = zmax; zmaxb = zmin;
|
|
|
|
for (j = 1; j <= 3; j++)
|
|
{
|
|
const Point3d & p = adfront->GetPoint (el.PNum(j));
|
|
if (p.X() < xminb) xminb = p.X();
|
|
if (p.X() > xmaxb) xmaxb = p.X();
|
|
if (p.Y() < yminb) yminb = p.Y();
|
|
if (p.Y() > ymaxb) ymaxb = p.Y();
|
|
if (p.Z() < zminb) zminb = p.Z();
|
|
if (p.Z() > zmaxb) zmaxb = p.Z();
|
|
}
|
|
|
|
|
|
|
|
double filldist = 0.2; // globflags.GetNumFlag ("filldist", 0.4);
|
|
xminb -= filldist * gh;
|
|
xmaxb += filldist * gh;
|
|
yminb -= filldist * gh;
|
|
ymaxb += filldist * gh;
|
|
zminb -= filldist * gh;
|
|
zmaxb += filldist * gh;
|
|
|
|
min1 = int ((xminb - xmin) / gh) + 1;
|
|
max1 = int ((xmaxb - xmin) / gh) + 1;
|
|
min2 = int ((yminb - ymin) / gh) + 1;
|
|
max2 = int ((ymaxb - ymin) / gh) + 1;
|
|
min3 = int ((zminb - zmin) / gh) + 1;
|
|
max3 = int ((zmaxb - zmin) / gh) + 1;
|
|
|
|
|
|
for (i1 = min1; i1 <= max1; i1++)
|
|
for (i2 = min2; i2 <= max2; i2++)
|
|
for (i3 = min3; i3 <= max3; i3++)
|
|
inner.Elem(i3 + (i2-1) * n3 + (i1-1) * n2 * n3) = BLOCKBOUND;
|
|
}
|
|
|
|
|
|
|
|
|
|
while (1)
|
|
{
|
|
int undefi = 0;
|
|
Point3d undefp;
|
|
|
|
for (i1 = 1; i1 <= n1 && !undefi; i1++)
|
|
for (i2 = 1; i2 <= n2 && !undefi; i2++)
|
|
for (i3 = 1; i3 <= n3 && !undefi; i3++)
|
|
{
|
|
i = i3 + (i2-1) * n3 + (i1-1) * n2 * n3;
|
|
if (inner.Elem(i) == BLOCKUNDEF)
|
|
{
|
|
undefi = i;
|
|
undefp.X() = xmin + (i1-0.5) * gh;
|
|
undefp.Y() = ymin + (i2-0.5) * gh;
|
|
undefp.Z() = zmin + (i3-0.5) * gh;
|
|
}
|
|
}
|
|
|
|
if (!undefi)
|
|
break;
|
|
|
|
// PrintMessage (5, "Test point: ", undefp);
|
|
|
|
if (adfront -> Inside (undefp))
|
|
{
|
|
// (*mycout) << "inner" << endl;
|
|
inner.Elem(undefi) = BLOCKINNER;
|
|
}
|
|
else
|
|
{
|
|
// (*mycout) << "outer" << endl;
|
|
inner.Elem(undefi) = BLOCKOUTER;
|
|
}
|
|
|
|
do
|
|
{
|
|
changed = 0;
|
|
for (i1 = 1; i1 <= n1; i1++)
|
|
for (i2 = 1; i2 <= n2; i2++)
|
|
for (i3 = 1; i3 <= n3; i3++)
|
|
{
|
|
i = i3 + (i2-1) * n3 + (i1-1) * n2 * n3;
|
|
|
|
for (int k = 1; k <= 3; k++)
|
|
{
|
|
switch (k)
|
|
{
|
|
case 1: j = i + n2 * n3; break;
|
|
case 2: j = i + n3; break;
|
|
case 3: j = i + 1; break;
|
|
}
|
|
|
|
if (j > n1 * n2 * n3) continue;
|
|
|
|
if (inner.Elem(i) == BLOCKOUTER && inner.Elem(j) == BLOCKUNDEF)
|
|
{
|
|
changed = 1;
|
|
inner.Elem(j) = BLOCKOUTER;
|
|
}
|
|
if (inner.Elem(j) == BLOCKOUTER && inner.Elem(i) == BLOCKUNDEF)
|
|
{
|
|
changed = 1;
|
|
inner.Elem(i) = BLOCKOUTER;
|
|
}
|
|
if (inner.Elem(i) == BLOCKINNER && inner.Elem(j) == BLOCKUNDEF)
|
|
{
|
|
changed = 1;
|
|
inner.Elem(j) = BLOCKINNER;
|
|
}
|
|
if (inner.Elem(j) == BLOCKINNER && inner.Elem(i) == BLOCKUNDEF)
|
|
{
|
|
changed = 1;
|
|
inner.Elem(i) = BLOCKINNER;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (changed);
|
|
|
|
}
|
|
|
|
|
|
|
|
filled = 0;
|
|
for(int i = 1; i <= n; i++)
|
|
if (inner.Elem(i) == BLOCKINNER)
|
|
{
|
|
filled++;
|
|
}
|
|
PrintMessage (5, "Filled blocks: ", filled);
|
|
|
|
for(int i = 1; i <= n; i++)
|
|
{
|
|
pointnr.Elem(i) = 0;
|
|
frontpointnr.Elem(i) = 0;
|
|
}
|
|
|
|
for (i1 = 1; i1 <= n1-1; i1++)
|
|
for (i2 = 1; i2 <= n2-1; i2++)
|
|
for (i3 = 1; i3 <= n3-1; i3++)
|
|
{
|
|
i = i3 + (i2-1) * n3 + (i1-1) * n2 * n3;
|
|
if (inner.Elem(i) == BLOCKINNER)
|
|
{
|
|
for (j1 = i1; j1 <= i1+1; j1++)
|
|
for (j2 = i2; j2 <= i2+1; j2++)
|
|
for (j3 = i3; j3 <= i3+1; j3++)
|
|
{
|
|
j = j3 + (j2-1) * n3 + (j1-1) * n2 * n3;
|
|
if (pointnr.Get(j) == 0)
|
|
{
|
|
Point3d hp(xmin + (j1-1) * gh,
|
|
ymin + (j2-1) * gh,
|
|
zmin + (j3-1) * gh);
|
|
pointnr.Elem(j) = mesh.AddPoint (hp);
|
|
frontpointnr.Elem(j) =
|
|
AddPoint (hp, pointnr.Elem(j));
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
for (i1 = 2; i1 <= n1-1; i1++)
|
|
for (i2 = 2; i2 <= n2-1; i2++)
|
|
for (i3 = 2; i3 <= n3-1; i3++)
|
|
{
|
|
i = i3 + (i2-1) * n3 + (i1-1) * n2 * n3;
|
|
if (inner.Elem(i) == BLOCKINNER)
|
|
{
|
|
int pn[9];
|
|
pn[1] = pointnr.Get(i);
|
|
pn[2] = pointnr.Get(i+1);
|
|
pn[3] = pointnr.Get(i+n3);
|
|
pn[4] = pointnr.Get(i+n3+1);
|
|
pn[5] = pointnr.Get(i+n2*n3);
|
|
pn[6] = pointnr.Get(i+n2*n3+1);
|
|
pn[7] = pointnr.Get(i+n2*n3+n3);
|
|
pn[8] = pointnr.Get(i+n2*n3+n3+1);
|
|
static int elind[][4] =
|
|
{
|
|
{ 1, 8, 2, 4 },
|
|
{ 1, 8, 4, 3 },
|
|
{ 1, 8, 3, 7 },
|
|
{ 1, 8, 7, 5 },
|
|
{ 1, 8, 5, 6 },
|
|
{ 1, 8, 6, 2 }
|
|
};
|
|
for (j = 1; j <= 6; j++)
|
|
{
|
|
Element el(4);
|
|
for (int k = 1; k <= 4; k++)
|
|
el.PNum(k) = pn[elind[j-1][k-1]];
|
|
|
|
mesh.AddVolumeElement (el);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
for (i1 = 2; i1 <= n1-1; i1++)
|
|
for (i2 = 2; i2 <= n2-1; i2++)
|
|
for (i3 = 2; i3 <= n3-1; i3++)
|
|
{
|
|
i = i3 + (i2-1) * n3 + (i1-1) * n2 * n3;
|
|
if (inner.Elem(i) == BLOCKINNER)
|
|
{
|
|
int pi1(0), pi2(0), pi3(0), pi4(0);
|
|
|
|
int pn1 = frontpointnr.Get(i);
|
|
int pn2 = frontpointnr.Get(i+1);
|
|
int pn3 = frontpointnr.Get(i+n3);
|
|
int pn4 = frontpointnr.Get(i+n3+1);
|
|
int pn5 = frontpointnr.Get(i+n2*n3);
|
|
int pn6 = frontpointnr.Get(i+n2*n3+1);
|
|
int pn7 = frontpointnr.Get(i+n2*n3+n3);
|
|
int pn8 = frontpointnr.Get(i+n2*n3+n3+1);
|
|
|
|
for (int k = 1; k <= 6; k++)
|
|
{
|
|
switch (k)
|
|
{
|
|
case 1: // j3 = i3+1
|
|
j = i + 1;
|
|
pi1 = pn2;
|
|
pi2 = pn6;
|
|
pi3 = pn4;
|
|
pi4 = pn8;
|
|
break;
|
|
case 2: // j3 = i3-1
|
|
j = i - 1;
|
|
pi1 = pn1;
|
|
pi2 = pn3;
|
|
pi3 = pn5;
|
|
pi4 = pn7;
|
|
break;
|
|
case 3: // j2 = i2+1
|
|
j = i + n3;
|
|
pi1 = pn3;
|
|
pi2 = pn4;
|
|
pi3 = pn7;
|
|
pi4 = pn8;
|
|
break;
|
|
case 4: // j2 = i2-1
|
|
j = i - n3;
|
|
pi1 = pn1;
|
|
pi2 = pn5;
|
|
pi3 = pn2;
|
|
pi4 = pn6;
|
|
break;
|
|
case 5: // j1 = i1+1
|
|
j = i + n3*n2;
|
|
pi1 = pn5;
|
|
pi2 = pn7;
|
|
pi3 = pn6;
|
|
pi4 = pn8;
|
|
break;
|
|
case 6: // j1 = i1-1
|
|
j = i - n3*n2;
|
|
pi1 = pn1;
|
|
pi2 = pn2;
|
|
pi3 = pn3;
|
|
pi4 = pn4;
|
|
break;
|
|
}
|
|
|
|
if (inner.Get(j) == BLOCKBOUND)
|
|
{
|
|
MiniElement2d face;
|
|
face.PNum(1) = pi4;
|
|
face.PNum(2) = pi1;
|
|
face.PNum(3) = pi3;
|
|
AddBoundaryElement (face);
|
|
|
|
face.PNum(1) = pi1;
|
|
face.PNum(2) = pi4;
|
|
face.PNum(3) = pi2;
|
|
AddBoundaryElement (face);
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
static const AdFront3 * locadfront;
|
|
static int TestInner (const Point3d & p)
|
|
{
|
|
return locadfront->Inside (p);
|
|
}
|
|
static int TestSameSide (const Point3d & p1, const Point3d & p2)
|
|
{
|
|
return locadfront->SameSide (p1, p2);
|
|
}
|
|
*/
|
|
|
|
|
|
|
|
void Meshing3 :: BlockFillLocalH (Mesh & mesh,
|
|
const MeshingParameters & mp)
|
|
{
|
|
static Timer t("Mesing3::BlockFillLocalH"); RegionTimer reg(t);
|
|
|
|
double filldist = mp.filldist;
|
|
|
|
// (*testout) << "blockfill local h" << endl;
|
|
// (*testout) << "rel filldist = " << filldist << endl;
|
|
PrintMessage (3, "blockfill local h");
|
|
|
|
|
|
NgArray<Point<3> > npoints;
|
|
|
|
adfront -> CreateTrees();
|
|
|
|
Box<3> bbox ( Box<3>::EMPTY_BOX );
|
|
double maxh = 0;
|
|
|
|
for (int i = 1; i <= adfront->GetNF(); i++)
|
|
{
|
|
const MiniElement2d & el = adfront->GetFace(i);
|
|
for (int j = 1; j <= 3; j++)
|
|
{
|
|
const Point3d & p1 = adfront->GetPoint (el.PNumMod(j));
|
|
const Point3d & p2 = adfront->GetPoint (el.PNumMod(j+1));
|
|
|
|
double hi = Dist (p1, p2);
|
|
if (hi > maxh) maxh = hi;
|
|
|
|
bbox.Add (p1);
|
|
}
|
|
}
|
|
|
|
|
|
Point3d mpmin = bbox.PMin();
|
|
Point3d mpmax = bbox.PMax();
|
|
Point3d mpc = Center (mpmin, mpmax);
|
|
double d = max3(mpmax.X()-mpmin.X(),
|
|
mpmax.Y()-mpmin.Y(),
|
|
mpmax.Z()-mpmin.Z()) / 2;
|
|
mpmin = mpc - Vec3d (d, d, d);
|
|
mpmax = mpc + Vec3d (d, d, d);
|
|
Box3d meshbox (mpmin, mpmax);
|
|
|
|
LocalH loch2 (mpmin, mpmax, 1);
|
|
|
|
if (mp.maxh < maxh) maxh = mp.maxh;
|
|
|
|
bool changed;
|
|
do
|
|
{
|
|
mesh.LocalHFunction().ClearFlags();
|
|
|
|
for (int i = 1; i <= adfront->GetNF(); i++)
|
|
{
|
|
const MiniElement2d & el = adfront->GetFace(i);
|
|
|
|
Box<3> bbox (adfront->GetPoint (el[0]));
|
|
bbox.Add (adfront->GetPoint (el[1]));
|
|
bbox.Add (adfront->GetPoint (el[2]));
|
|
|
|
|
|
double filld = filldist * bbox.Diam();
|
|
bbox.Increase (filld);
|
|
|
|
mesh.LocalHFunction().CutBoundary (bbox); // .PMin(), bbox.PMax());
|
|
}
|
|
|
|
// locadfront = adfront;
|
|
mesh.LocalHFunction().FindInnerBoxes (adfront, NULL);
|
|
|
|
npoints.SetSize(0);
|
|
mesh.LocalHFunction().GetInnerPoints (npoints);
|
|
|
|
changed = false;
|
|
for (int i = 1; i <= npoints.Size(); i++)
|
|
{
|
|
if (mesh.LocalHFunction().GetH(npoints.Get(i)) > 1.5 * maxh)
|
|
{
|
|
mesh.LocalHFunction().SetH (npoints.Get(i), maxh);
|
|
changed = true;
|
|
}
|
|
}
|
|
}
|
|
while (changed);
|
|
|
|
if (debugparam.slowchecks)
|
|
(*testout) << "Blockfill with points: " << endl;
|
|
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) << endl;
|
|
if (!adfront->Inside(npoints.Get(i)))
|
|
{
|
|
cout << "add outside point" << endl;
|
|
(*testout) << "outside" << endl;
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
// find outer points
|
|
|
|
loch2.ClearFlags();
|
|
|
|
for (int i = 1; i <= adfront->GetNF(); i++)
|
|
{
|
|
const MiniElement2d & el = adfront->GetFace(i);
|
|
Point3d pmin = adfront->GetPoint (el.PNum(1));
|
|
Point3d pmax = pmin;
|
|
|
|
for (int j = 2; j <= 3; j++)
|
|
{
|
|
const Point3d & p = adfront->GetPoint (el.PNum(j));
|
|
pmin.SetToMin (p);
|
|
pmax.SetToMax (p);
|
|
}
|
|
|
|
loch2.SetH (Center (pmin, pmax), Dist (pmin, pmax));
|
|
}
|
|
|
|
for (int i = 1; i <= adfront->GetNF(); i++)
|
|
{
|
|
const MiniElement2d & el = adfront->GetFace(i);
|
|
Point3d pmin = adfront->GetPoint (el.PNum(1));
|
|
Point3d pmax = pmin;
|
|
|
|
for (int j = 2; j <= 3; j++)
|
|
{
|
|
const Point3d & p = adfront->GetPoint (el.PNum(j));
|
|
pmin.SetToMin (p);
|
|
pmax.SetToMax (p);
|
|
}
|
|
|
|
double filld = filldist * Dist (pmin, pmax);
|
|
pmin = pmin - Vec3d (filld, filld, filld);
|
|
pmax = pmax + Vec3d (filld, filld, filld);
|
|
// loch2.CutBoundary (pmin, pmax);
|
|
loch2.CutBoundary (Box<3> (pmin, pmax)); // pmin, pmax);
|
|
}
|
|
|
|
// locadfront = adfront;
|
|
loch2.FindInnerBoxes (adfront, NULL);
|
|
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|