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netgen/libsrc/meshing/improve3.cpp
Joachim Schöberl b03705c37d more use of Index types
2019-08-09 00:23:12 +02:00

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#include <mystdlib.h>
#include "meshing.hpp"
#ifdef SOLIDGEOM
#include <csg.hpp>
#endif
#include <opti.hpp>
namespace netgen
{
/*
Combine two points to one.
Set new point into the center, if both are
inner points.
Connect inner point to boundary point, if one
point is inner point.
*/
void MeshOptimize3d :: CombineImprove (Mesh & mesh,
OPTIMIZEGOAL goal)
{
static Timer t("MeshOptimize3d::CombineImprove"); RegionTimer reg(t);
int np = mesh.GetNP();
int ne = mesh.GetNE();
TABLE<ElementIndex, PointIndex::BASE> elementsonnode(np);
NgArray<ElementIndex> hasonepi, hasbothpi;
NgArray<double> oneperr;
NgArray<double> elerrs (ne);
PrintMessage (3, "CombineImprove");
(*testout) << "Start CombineImprove" << "\n";
// mesh.CalcSurfacesOfNode ();
const char * savetask = multithread.task;
multithread.task = "Combine Improve";
double totalbad = 0;
for (ElementIndex ei = 0; ei < ne; ei++)
{
if(mesh.GetDimension()==3 && mp.only3D_domain_nr && mp.only3D_domain_nr != mesh[ei].GetIndex())
continue;
double elerr = CalcBad (mesh.Points(), mesh[ei], 0);
totalbad += elerr;
elerrs[ei] = elerr;
}
if (goal == OPT_QUALITY)
{
totalbad = CalcTotalBad (mesh.Points(), mesh.VolumeElements());
(*testout) << "Total badness = " << totalbad << endl;
PrintMessage (5, "Total badness = ", totalbad);
}
for (ElementIndex ei = 0; ei < ne; ei++)
if (!mesh[ei].IsDeleted())
for (int j = 0; j < mesh[ei].GetNP(); j++)
elementsonnode.Add (mesh[ei][j], ei);
INDEX_2_HASHTABLE<int> edgetested (np+1);
int cnt = 0;
for (ElementIndex ei = 0; ei < ne; ei++)
{
if(mesh.GetDimension()==3 && mp.only3D_domain_nr && mp.only3D_domain_nr != mesh.VolumeElement(ei).GetIndex())
continue;
if (multithread.terminate)
break;
multithread.percent = 100.0 * (ei+1) / ne;
if (mesh.ElementType(ei) == FIXEDELEMENT)
continue;
for (int j = 0; j < 6; j++)
{
Element & elemi = mesh[ei];
if (elemi.IsDeleted()) continue;
static const int tetedges[6][2] =
{ { 0, 1 }, { 0, 2 }, { 0, 3 },
{ 1, 2 }, { 1, 3 }, { 2, 3 } };
PointIndex pi1 = elemi[tetedges[j][0]];
PointIndex pi2 = elemi[tetedges[j][1]];
if (pi2 < pi1) Swap (pi1, pi2);
INDEX_2 si2 (pi1, pi2);
si2.Sort();
if (edgetested.Used (si2)) continue;
edgetested.Set (si2, 1);
// hasonepoint.SetSize(0);
// hasbothpoints.SetSize(0);
hasonepi.SetSize(0);
hasbothpi.SetSize(0);
NgFlatArray<ElementIndex> row1 = elementsonnode[pi1];
for (int k = 0; k < row1.Size(); k++)
{
Element & elem = mesh[row1[k]];
if (elem.IsDeleted()) continue;
if (elem[0] == pi2 || elem[1] == pi2 ||
elem[2] == pi2 || elem[3] == pi2)
{
hasbothpi.Append (row1[k]);
}
else
{
hasonepi.Append (row1[k]);
}
}
NgFlatArray<ElementIndex> row2 = elementsonnode[pi2];
for (int k = 0; k < row2.Size(); k++)
{
Element & elem = mesh[row2[k]];
if (elem.IsDeleted()) continue;
if (elem[0] == pi1 || elem[1] == pi1 ||
elem[2] == pi1 || elem[3] == pi1)
;
else
{
hasonepi.Append (row2[k]);
}
}
double bad1 = 0;
for (int k = 0; k < hasonepi.Size(); k++)
bad1 += elerrs[hasonepi[k]];
for (int k = 0; k < hasbothpi.Size(); k++)
bad1 += elerrs[hasbothpi[k]];
MeshPoint p1 = mesh[pi1];
MeshPoint p2 = mesh[pi2];
// if (mesh.PointType(pi2) != INNERPOINT)
if (p2.Type() != INNERPOINT)
continue;
MeshPoint pnew;
// if (mesh.PointType(pi1) != INNERPOINT)
if (p1.Type() != INNERPOINT)
pnew = p1;
else
pnew = Center (p1, p2);
mesh[pi1] = pnew;
mesh[pi2] = pnew;
oneperr.SetSize (hasonepi.Size());
double bad2 = 0;
for (int k = 0; k < hasonepi.Size(); k++)
{
const Element & elem = mesh[hasonepi[k]];
double err = CalcBad (mesh.Points(), elem, 0);
// CalcTetBadness (mesh[elem[0]], mesh[elem[1]],
// mesh[elem[2]], mesh[elem[3]], 0, mparam);
bad2 += err;
oneperr[k] = err;
}
mesh[pi1] = p1;
mesh[pi2] = p2;
// if (mesh.PointType(pi1) != INNERPOINT)
if (p1.Type() != INNERPOINT)
{
for (int k = 0; k < hasonepi.Size(); k++)
{
Element & elem = mesh[hasonepi[k]];
int l;
for (l = 0; l < 4; l++)
if (elem[l] == pi2)
{
elem[l] = pi1;
break;
}
elem.flags.illegal_valid = 0;
if (!mesh.LegalTet(elem))
bad2 += 1e4;
if (l < 4)
{
elem.flags.illegal_valid = 0;
elem[l] = pi2;
}
}
}
if (bad2 / hasonepi.Size() <
bad1 / (hasonepi.Size()+hasbothpi.Size()))
{
mesh[pi1] = pnew;
cnt++;
NgFlatArray<ElementIndex> row = elementsonnode[pi2];
for (int k = 0; k < row.Size(); k++)
{
Element & elem = mesh[row[k]];
if (elem.IsDeleted()) continue;
elementsonnode.Add (pi1, row[k]);
for (int l = 0; l < elem.GetNP(); l++)
if (elem[l] == pi2)
elem[l] = pi1;
elem.flags.illegal_valid = 0;
if (!mesh.LegalTet (elem))
(*testout) << "illegal tet " << elementsonnode[pi2][k] << endl;
}
for (int k = 0; k < hasonepi.Size(); k++)
elerrs[hasonepi[k]] = oneperr[k];
for (int k = 0; k < hasbothpi.Size(); k++)
{
mesh[hasbothpi[k]].flags.illegal_valid = 0;
mesh[hasbothpi[k]].Delete();
}
}
}
}
mesh.Compress();
mesh.MarkIllegalElements();
PrintMessage (5, cnt, " elements combined");
(*testout) << "CombineImprove done" << "\n";
totalbad = 0;
for (ElementIndex ei = 0; ei < mesh.GetNE(); ei++)
if(!(mesh.GetDimension()==3 && mp.only3D_domain_nr && mp.only3D_domain_nr != mesh.VolumeElement(ei).GetIndex()))
totalbad += CalcBad (mesh.Points(), mesh[ei], 0);
if (goal == OPT_QUALITY)
{
totalbad = CalcTotalBad (mesh.Points(), mesh.VolumeElements());
(*testout) << "Total badness = " << totalbad << endl;
int cntill = 0;
for (ElementIndex ei = 0; ei < ne; ei++)
if(!(mesh.GetDimension()==3 && mp.only3D_domain_nr && mp.only3D_domain_nr != mesh.VolumeElement(ei).GetIndex()))
if (!mesh.LegalTet (mesh[ei]))
cntill++;
PrintMessage (5, cntill, " illegal tets");
}
multithread.task = savetask;
}
/*
Mesh improvement by edge splitting.
If mesh quality is improved by inserting a node into an inner edge,
the edge is split into two parts.
*/
void MeshOptimize3d :: SplitImprove (Mesh & mesh,
OPTIMIZEGOAL goal)
{
static Timer t("MeshOptimize3d::SplitImprove"); RegionTimer reg(t);
static Timer tloop("MeshOptimize3d::SplitImprove loop");
double bad1, bad2, badmax, badlimit;
int cnt = 0;
int np = mesh.GetNP();
int ne = mesh.GetNE();
TABLE<ElementIndex,PointIndex::BASE> elementsonnode(np);
NgArray<ElementIndex> hasbothpoints;
BitArray origpoint(np+1), boundp(np+1); // big enough for 0 and 1-based
origpoint.Set();
NgArray<double> elerrs(ne);
BitArray illegaltet(ne);
illegaltet.Clear();
const char * savetask = multithread.task;
multithread.task = "Split Improve";
PrintMessage (3, "SplitImprove");
(*testout) << "start SplitImprove" << "\n";
NgArray<INDEX_3> locfaces;
INDEX_2_HASHTABLE<int> edgetested (np);
bad1 = 0;
badmax = 0;
for (ElementIndex ei = 0; ei < ne; ei++)
{
if(mp.only3D_domain_nr && mp.only3D_domain_nr != mesh.VolumeElement(ei).GetIndex())
continue;
elerrs[ei] = CalcBad (mesh.Points(), mesh[ei], 0);
bad1 += elerrs[ei];
if (elerrs[ei] > badmax) badmax = elerrs[ei];
}
PrintMessage (5, "badmax = ", badmax);
badlimit = 0.5 * badmax;
boundp.Clear();
for (auto & el : mesh.SurfaceElements())
for (PointIndex pi : el.PNums())
boundp.Set (pi);
if (goal == OPT_QUALITY)
{
bad1 = CalcTotalBad (mesh.Points(), mesh.VolumeElements());
(*testout) << "Total badness = " << bad1 << endl;
}
for (ElementIndex ei : mesh.VolumeElements().Range())
for (PointIndex pi : mesh[ei].PNums())
elementsonnode.Add (pi, ei);
mesh.MarkIllegalElements();
if (goal == OPT_QUALITY || goal == OPT_LEGAL)
{
int cntill = 0;
for (ElementIndex ei = 0; ei < ne; ei++)
{
// if (!LegalTet (volelements.Get(i)))
if (mesh[ei].flags.illegal)
{
cntill++;
illegaltet.Set (ei);
}
}
}
tloop.Start();
for (ElementIndex ei : mesh.VolumeElements().Range())
{
Element & elem = mesh[ei];
if(mp.only3D_domain_nr && mp.only3D_domain_nr != elem.GetIndex())
continue;
if (multithread.terminate)
break;
multithread.percent = 100.0 * (ei+1) / ne;
bool ltestmode = 0;
if (elerrs[ei] < badlimit && !illegaltet.Test(ei)) continue;
if ((goal == OPT_LEGAL) &&
!illegaltet.Test(ei) &&
CalcBad (mesh.Points(), elem, 0) < 1e3)
continue;
if (ltestmode)
{
(*testout) << "test el " << ei << endl;
for (int j = 0; j < 4; j++)
(*testout) << elem[j] << " ";
(*testout) << endl;
}
for (int j = 0; j < 6; j++)
{
static const int tetedges[6][2] =
{ { 0, 1 }, { 0, 2 }, { 0, 3 },
{ 1, 2 }, { 1, 3 }, { 2, 3 } };
PointIndex pi1 = elem[tetedges[j][0]];
PointIndex pi2 = elem[tetedges[j][1]];
if (pi2 < pi1) Swap (pi1, pi2);
if (pi2 >= elementsonnode.Size()+PointIndex::BASE) continue; // old number of points
if (!origpoint.Test(pi1) || !origpoint.Test(pi2))
continue;
INDEX_2 i2(pi1, pi2);
i2.Sort();
if (mesh.BoundaryEdge (pi1, pi2)) continue;
if (edgetested.Used (i2) && !illegaltet.Test(ei)) continue;
edgetested.Set (i2, 1);
hasbothpoints.SetSize (0);
/*
for (int k = 1; k <= elementsonnode.EntrySize(pi1); k++)
{
ElementIndex elnr = elementsonnode.Get(pi1, k);
*/
for (ElementIndex ei : elementsonnode[pi1])
{
Element & el = mesh[ei];
bool has1 = el.PNums().Contains(pi1);
bool has2 = el.PNums().Contains(pi2);
if (has1 && has2)
if (!hasbothpoints.Contains (ei))
hasbothpoints.Append (ei);
}
bad1 = 0;
for (ElementIndex ei : hasbothpoints)
bad1 += CalcBad (mesh.Points(), mesh[ei], 0);
bool puretet = 1;
for (ElementIndex ei : hasbothpoints)
if (mesh[ei].GetType() != TET)
puretet = 0;
if (!puretet) continue;
Point3d p1 = mesh[pi1];
Point3d p2 = mesh[pi2];
/*
pnew = Center (p1, p2);
points.Elem(pi1) = pnew;
bad2 = 0;
for (k = 1; k <= hasbothpoints.Size(); k++)
bad2 += CalcBad (points,
volelements.Get(hasbothpoints.Get(k)), 0);
points.Elem(pi1) = p1;
points.Elem(pi2) = pnew;
for (k = 1; k <= hasbothpoints.Size(); k++)
bad2 += CalcBad (points,
volelements.Get(hasbothpoints.Get(k)), 0);
points.Elem(pi2) = p2;
*/
locfaces.SetSize (0);
for (ElementIndex ei : hasbothpoints)
{
const Element & el = mesh[ei];
for (int l = 0; l < 4; l++)
if (el[l] == pi1 || el[l] == pi2)
{
INDEX_3 i3;
Element2d face(TRIG);
el.GetFace (l+1, face);
for (int kk = 1; kk <= 3; kk++)
i3.I(kk) = face.PNum(kk);
locfaces.Append (i3);
}
}
PointFunction1 pf (mesh.Points(), locfaces, mp, -1);
OptiParameters par;
par.maxit_linsearch = 50;
par.maxit_bfgs = 20;
Point3d pnew = Center (p1, p2);
Vector px(3);
px(0) = pnew.X();
px(1) = pnew.Y();
px(2) = pnew.Z();
if (elerrs[ei] > 0.1 * badmax)
BFGS (px, pf, par);
bad2 = pf.Func (px);
pnew.X() = px(0);
pnew.Y() = px(1);
pnew.Z() = px(2);
PointIndex hpinew = mesh.AddPoint (pnew);
// ptyps.Append (INNERPOINT);
for (int k = 0; k < hasbothpoints.Size(); k++)
{
Element & oldel = mesh[hasbothpoints[k]];
Element newel1 = oldel;
Element newel2 = oldel;
oldel.flags.illegal_valid = 0;
newel1.flags.illegal_valid = 0;
newel2.flags.illegal_valid = 0;
for (int l = 0; l < 4; l++)
{
if (newel1[l] == pi2) newel1[l] = hpinew;
if (newel2[l] == pi1) newel2[l] = hpinew;
}
if (!mesh.LegalTet (oldel)) bad1 += 1e6;
if (!mesh.LegalTet (newel1)) bad2 += 1e6;
if (!mesh.LegalTet (newel2)) bad2 += 1e6;
}
// mesh.PointTypes().DeleteLast();
mesh.Points().DeleteLast();
if (bad2 < bad1)
/* (bad1 > 1e4 && boundp.Test(pi1) && boundp.Test(pi2)) */
{
cnt++;
PointIndex pinew = mesh.AddPoint (pnew);
for (ElementIndex ei : hasbothpoints)
{
Element & oldel = mesh[ei];
Element newel = oldel;
newel.flags.illegal_valid = 0;
oldel.flags.illegal_valid = 0;
for (int l = 0; l < 4; l++)
{
origpoint.Clear (oldel[l]);
if (oldel[l] == pi2) oldel[l] = pinew;
if (newel[l] == pi1) newel[l] = pinew;
}
mesh.AddVolumeElement (newel);
}
j = 10; // end j-loop
}
}
}
tloop.Stop();
mesh.Compress();
PrintMessage (5, cnt, " splits performed");
(*testout) << "Splitt - Improve done" << "\n";
if (goal == OPT_QUALITY)
{
bad1 = CalcTotalBad (mesh.Points(), mesh.VolumeElements());
(*testout) << "Total badness = " << bad1 << endl;
int cntill = 0;
ne = mesh.GetNE();
for (ElementIndex ei = 0; ei < ne; ei++)
if (!mesh.LegalTet (mesh[ei]))
cntill++;
// cout << cntill << " illegal tets" << endl;
}
multithread.task = savetask;
}
void MeshOptimize3d :: SwapImprove (Mesh & mesh, OPTIMIZEGOAL goal,
const BitArray * working_elements)
{
static Timer t("MeshOptimize3d::SwapImprove"); RegionTimer reg(t);
static Timer tloop("MeshOptimize3d::SwapImprove loop");
PointIndex pi3(PointIndex::INVALID), pi4(PointIndex::INVALID),
pi5(PointIndex::INVALID), pi6(PointIndex::INVALID);
int cnt = 0;
Element el21(TET), el22(TET), el31(TET), el32(TET), el33(TET);
Element el1(TET), el2(TET), el3(TET), el4(TET);
Element el1b(TET), el2b(TET), el3b(TET), el4b(TET);
double bad1, bad2, bad3;
int np = mesh.GetNP();
int ne = mesh.GetNE();
// contains at least all elements at node
TABLE<ElementIndex,PointIndex::BASE> elementsonnode(np);
NgArray<ElementIndex> hasbothpoints;
PrintMessage (3, "SwapImprove ");
(*testout) << "\n" << "Start SwapImprove" << endl;
const char * savetask = multithread.task;
multithread.task = "Swap Improve";
// mesh.CalcSurfacesOfNode ();
INDEX_3_HASHTABLE<int> faces(mesh.GetNOpenElements()/3 + 2);
if (goal == OPT_CONFORM)
{
for (int i = 1; i <= mesh.GetNOpenElements(); i++)
{
const Element2d & hel = mesh.OpenElement(i);
INDEX_3 face(hel[0], hel[1], hel[2]);
face.Sort();
faces.Set (face, 1);
}
}
// Calculate total badness
if (goal == OPT_QUALITY)
{
bad1 = CalcTotalBad (mesh.Points(), mesh.VolumeElements());
(*testout) << "Total badness = " << bad1 << endl;
}
// find elements on node
for (ElementIndex ei = 0; ei < ne; ei++)
for (PointIndex pi : mesh[ei].PNums())
elementsonnode.Add (pi, ei);
/*
for (int j = 0; j < mesh[ei].GetNP(); j++)
elementsonnode.Add (mesh[ei][j], ei);
*/
// INDEX_2_HASHTABLE<int> edgeused(2 * ne + 5);
INDEX_2_CLOSED_HASHTABLE<int> edgeused(12 * ne + 5);
tloop.Start();
for (ElementIndex ei = 0; ei < ne; ei++)
{
if (multithread.terminate)
break;
if (mp.only3D_domain_nr && mp.only3D_domain_nr != mesh.VolumeElement(ei).GetIndex())
continue;
multithread.percent = 100.0 * (ei+1) / ne;
if ((mesh.ElementType(ei)) == FIXEDELEMENT)
continue;
if(working_elements &&
ei < working_elements->Size() &&
!working_elements->Test(ei))
continue;
if (mesh[ei].IsDeleted())
continue;
if ((goal == OPT_LEGAL) &&
mesh.LegalTet (mesh[ei]) &&
CalcBad (mesh.Points(), mesh[ei], 0) < 1e3)
continue;
// int onlybedges = 1;
for (int j = 0; j < 6; j++)
{
// loop over edges
const Element & elemi = mesh[ei];
if (elemi.IsDeleted()) continue;
int mattyp = elemi.GetIndex();
static const int tetedges[6][2] =
{ { 0, 1 }, { 0, 2 }, { 0, 3 },
{ 1, 2 }, { 1, 3 }, { 2, 3 } };
PointIndex pi1 = elemi[tetedges[j][0]];
PointIndex pi2 = elemi[tetedges[j][1]];
if (pi2 < pi1) Swap (pi1, pi2);
if (mesh.BoundaryEdge (pi1, pi2)) continue;
INDEX_2 i2 (pi1, pi2);
i2.Sort();
if (edgeused.Used(i2)) continue;
edgeused.Set (i2, 1);
hasbothpoints.SetSize (0);
for (int k = 0; k < elementsonnode[pi1].Size(); k++)
{
bool has1 = 0, has2 = 0;
ElementIndex elnr = elementsonnode[pi1][k];
const Element & elem = mesh[elnr];
if (elem.IsDeleted()) continue;
for (int l = 0; l < elem.GetNP(); l++)
{
if (elem[l] == pi1) has1 = 1;
if (elem[l] == pi2) has2 = 1;
}
if (has1 && has2)
{ // only once
if (hasbothpoints.Contains (elnr))
has1 = false;
if (has1)
{
hasbothpoints.Append (elnr);
}
}
}
bool puretet = true;
for (ElementIndex ei : hasbothpoints)
if (mesh[ei].GetType () != TET)
puretet = false;
if (!puretet) continue;
int nsuround = hasbothpoints.Size();
if ( nsuround == 3 )
{
Element & elem = mesh[hasbothpoints[0]];
for (int l = 0; l < 4; l++)
if (elem[l] != pi1 && elem[l] != pi2)
{
pi4 = pi3;
pi3 = elem[l];
}
el31[0] = pi1;
el31[1] = pi2;
el31[2] = pi3;
el31[3] = pi4;
el31.SetIndex (mattyp);
if (WrongOrientation (mesh.Points(), el31))
{
Swap (pi3, pi4);
el31[2] = pi3;
el31[3] = pi4;
}
pi5.Invalidate();
for (int k = 0; k < 3; k++) // JS, 201212
{
const Element & elemk = mesh[hasbothpoints[k]];
bool has1 = false;
for (int l = 0; l < 4; l++)
if (elemk[l] == pi4)
has1 = true;
if (has1)
{
for (int l = 0; l < 4; l++)
if (elemk[l] != pi1 && elemk[l] != pi2 && elemk[l] != pi4)
pi5 = elemk[l];
}
}
if (!pi5.IsValid())
throw NgException("Illegal state observed in SwapImprove");
el32[0] = pi1;
el32[1] = pi2;
el32[2] = pi4;
el32[3] = pi5;
el32.SetIndex (mattyp);
el33[0] = pi1;
el33[1] = pi2;
el33[2] = pi5;
el33[3] = pi3;
el33.SetIndex (mattyp);
elementsonnode.Add (pi4, hasbothpoints[1]);
elementsonnode.Add (pi3, hasbothpoints[2]);
bad1 = CalcBad (mesh.Points(), el31, 0) +
CalcBad (mesh.Points(), el32, 0) +
CalcBad (mesh.Points(), el33, 0);
el31.flags.illegal_valid = 0;
el32.flags.illegal_valid = 0;
el33.flags.illegal_valid = 0;
if (!mesh.LegalTet(el31) ||
!mesh.LegalTet(el32) ||
!mesh.LegalTet(el33))
bad1 += 1e4;
el21[0] = pi3;
el21[1] = pi4;
el21[2] = pi5;
el21[3] = pi2;
el21.SetIndex (mattyp);
el22[0] = pi5;
el22[1] = pi4;
el22[2] = pi3;
el22[3] = pi1;
el22.SetIndex (mattyp);
bad2 = CalcBad (mesh.Points(), el21, 0) +
CalcBad (mesh.Points(), el22, 0);
el21.flags.illegal_valid = 0;
el22.flags.illegal_valid = 0;
if (!mesh.LegalTet(el21) ||
!mesh.LegalTet(el22))
bad2 += 1e4;
if (goal == OPT_CONFORM && bad2 < 1e4)
{
INDEX_3 face(pi3, pi4, pi5);
face.Sort();
if (faces.Used(face))
{
// (*testout) << "3->2 swap, could improve conformity, bad1 = " << bad1
// << ", bad2 = " << bad2 << endl;
if (bad2 < 1e4)
bad1 = 2 * bad2;
}
/*
else
{
INDEX_2 hi1(pi3, pi4);
hi1.Sort();
INDEX_2 hi2(pi3, pi5);
hi2.Sort();
INDEX_2 hi3(pi4, pi5);
hi3.Sort();
if (boundaryedges->Used (hi1) ||
boundaryedges->Used (hi2) ||
boundaryedges->Used (hi3) )
bad1 = 2 * bad2;
}
*/
}
if (bad2 < bad1)
{
// (*mycout) << "3->2 " << flush;
// (*testout) << "3->2 conversion" << endl;
cnt++;
/*
(*testout) << "3->2 swap, old els = " << endl
<< mesh[hasbothpoints[0]] << endl
<< mesh[hasbothpoints[1]] << endl
<< mesh[hasbothpoints[2]] << endl
<< "new els = " << endl
<< el21 << endl
<< el22 << endl;
*/
el21.flags.illegal_valid = 0;
el22.flags.illegal_valid = 0;
mesh[hasbothpoints[0]] = el21;
mesh[hasbothpoints[1]] = el22;
for (int l = 0; l < 4; l++)
mesh[hasbothpoints[2]][l].Invalidate();
mesh[hasbothpoints[2]].Delete();
for (int k = 0; k < 2; k++)
for (int l = 0; l < 4; l++)
elementsonnode.Add (mesh[hasbothpoints[k]][l], hasbothpoints[k]);
}
}
if (nsuround == 4)
{
const Element & elem1 = mesh[hasbothpoints[0]];
for (int l = 0; l < 4; l++)
if (elem1[l] != pi1 && elem1[l] != pi2)
{
pi4 = pi3;
pi3 = elem1[l];
}
el1[0] = pi1; el1[1] = pi2;
el1[2] = pi3; el1[3] = pi4;
el1.SetIndex (mattyp);
if (WrongOrientation (mesh.Points(), el1))
{
Swap (pi3, pi4);
el1[2] = pi3;
el1[3] = pi4;
}
pi5.Invalidate();
for (int k = 0; k < 4; k++)
{
const Element & elem = mesh[hasbothpoints[k]];
bool has1 = elem.PNums().Contains(pi4);
if (has1)
{
for (int l = 0; l < 4; l++)
if (elem[l] != pi1 && elem[l] != pi2 && elem[l] != pi4)
pi5 = elem[l];
}
}
pi6.Invalidate();
for (int k = 0; k < 4; k++)
{
const Element & elem = mesh[hasbothpoints[k]];
bool has1 = elem.PNums().Contains(pi3);
if (has1)
{
for (int l = 0; l < 4; l++)
if (elem[l] != pi1 && elem[l] != pi2 && elem[l] != pi3)
pi6 = elem[l];
}
}
/*
INDEX_2 i22(pi3, pi5);
i22.Sort();
INDEX_2 i23(pi4, pi6);
i23.Sort();
*/
el1[0] = pi1; el1[1] = pi2;
el1[2] = pi3; el1[3] = pi4;
el1.SetIndex (mattyp);
el2[0] = pi1; el2[1] = pi2;
el2[2] = pi4; el2[3] = pi5;
el2.SetIndex (mattyp);
el3[0] = pi1; el3[1] = pi2;
el3[2] = pi5; el3[3] = pi6;
el3.SetIndex (mattyp);
el4[0] = pi1; el4[1] = pi2;
el4[2] = pi6; el4[3] = pi3;
el4.SetIndex (mattyp);
// elementsonnode.Add (pi4, hasbothpoints.Elem(2));
// elementsonnode.Add (pi3, hasbothpoints.Elem(3));
bad1 = CalcBad (mesh.Points(), el1, 0) +
CalcBad (mesh.Points(), el2, 0) +
CalcBad (mesh.Points(), el3, 0) +
CalcBad (mesh.Points(), el4, 0);
el1.flags.illegal_valid = 0;
el2.flags.illegal_valid = 0;
el3.flags.illegal_valid = 0;
el4.flags.illegal_valid = 0;
if (goal != OPT_CONFORM)
{
if (!mesh.LegalTet(el1) ||
!mesh.LegalTet(el2) ||
!mesh.LegalTet(el3) ||
!mesh.LegalTet(el4))
bad1 += 1e4;
}
el1[0] = pi3; el1[1] = pi5;
el1[2] = pi2; el1[3] = pi4;
el1.SetIndex (mattyp);
el2[0] = pi3; el2[1] = pi5;
el2[2] = pi4; el2[3] = pi1;
el2.SetIndex (mattyp);
el3[0] = pi3; el3[1] = pi5;
el3[2] = pi1; el3[3] = pi6;
el3.SetIndex (mattyp);
el4[0] = pi3; el4[1] = pi5;
el4[2] = pi6; el4[3] = pi2;
el4.SetIndex (mattyp);
bad2 = CalcBad (mesh.Points(), el1, 0) +
CalcBad (mesh.Points(), el2, 0) +
CalcBad (mesh.Points(), el3, 0) +
CalcBad (mesh.Points(), el4, 0);
el1.flags.illegal_valid = 0;
el2.flags.illegal_valid = 0;
el3.flags.illegal_valid = 0;
el4.flags.illegal_valid = 0;
if (goal != OPT_CONFORM)
{
if (!mesh.LegalTet(el1) ||
!mesh.LegalTet(el2) ||
!mesh.LegalTet(el3) ||
!mesh.LegalTet(el4))
bad2 += 1e4;
}
el1b[0] = pi4; el1b[1] = pi6;
el1b[2] = pi3; el1b[3] = pi2;
el1b.SetIndex (mattyp);
el2b[0] = pi4; el2b[1] = pi6;
el2b[2] = pi2; el2b[3] = pi5;
el2b.SetIndex (mattyp);
el3b[0] = pi4; el3b[1] = pi6;
el3b[2] = pi5; el3b[3] = pi1;
el3b.SetIndex (mattyp);
el4b[0] = pi4; el4b[1] = pi6;
el4b[2] = pi1; el4b[3] = pi3;
el4b.SetIndex (mattyp);
bad3 = CalcBad (mesh.Points(), el1b, 0) +
CalcBad (mesh.Points(), el2b, 0) +
CalcBad (mesh.Points(), el3b, 0) +
CalcBad (mesh.Points(), el4b, 0);
el1b.flags.illegal_valid = 0;
el2b.flags.illegal_valid = 0;
el3b.flags.illegal_valid = 0;
el4b.flags.illegal_valid = 0;
if (goal != OPT_CONFORM)
{
if (!mesh.LegalTet(el1b) ||
!mesh.LegalTet(el2b) ||
!mesh.LegalTet(el3b) ||
!mesh.LegalTet(el4b))
bad3 += 1e4;
}
/*
int swap2 = (bad2 < bad1) && (bad2 < bad3);
int swap3 = !swap2 && (bad3 < bad1);
if ( ((bad2 < 10 * bad1) ||
(bad2 < 1e6)) && mesh.BoundaryEdge (pi3, pi5))
swap2 = 1;
else if ( ((bad3 < 10 * bad1) ||
(bad3 < 1e6)) && mesh.BoundaryEdge (pi4, pi6))
{
swap3 = 1;
swap2 = 0;
}
*/
bool swap2, swap3;
if (goal != OPT_CONFORM)
{
swap2 = (bad2 < bad1) && (bad2 < bad3);
swap3 = !swap2 && (bad3 < bad1);
}
else
{
if (mesh.BoundaryEdge (pi3, pi5)) bad2 /= 1e6;
if (mesh.BoundaryEdge (pi4, pi6)) bad3 /= 1e6;
swap2 = (bad2 < bad1) && (bad2 < bad3);
swap3 = !swap2 && (bad3 < bad1);
}
if (swap2 || swap3)
{
// (*mycout) << "4->4 " << flush;
cnt++;
// (*testout) << "4->4 conversion" << "\n";
/*
(*testout) << "bad1 = " << bad1
<< " bad2 = " << bad2
<< " bad3 = " << bad3 << "\n";
(*testout) << "Points: " << pi1 << " " << pi2 << " " << pi3
<< " " << pi4 << " " << pi5 << " " << pi6 << "\n";
(*testout) << "Elements: "
<< hasbothpoints.Get(1) << " "
<< hasbothpoints.Get(2) << " "
<< hasbothpoints.Get(3) << " "
<< hasbothpoints.Get(4) << " " << "\n";
*/
/*
{
int i1, j1;
for (i1 = 1; i1 <= 4; i1++)
{
for (j1 = 1; j1 <= 4; j1++)
(*testout) << volelements.Get(hasbothpoints.Get(i1)).PNum(j1)
<< " ";
(*testout) << "\n";
}
}
*/
}
if (swap2)
{
// (*mycout) << "bad1 = " << bad1 << " bad2 = " << bad2 << "\n";
/*
(*testout) << "4->4 swap A, old els = " << endl
<< mesh[hasbothpoints[0]] << endl
<< mesh[hasbothpoints[1]] << endl
<< mesh[hasbothpoints[2]] << endl
<< mesh[hasbothpoints[3]] << endl
<< "new els = " << endl
<< el1 << endl
<< el2 << endl
<< el3 << endl
<< el4 << endl;
*/
el1.flags.illegal_valid = 0;
el2.flags.illegal_valid = 0;
el3.flags.illegal_valid = 0;
el4.flags.illegal_valid = 0;
mesh[hasbothpoints[0]] = el1;
mesh[hasbothpoints[1]] = el2;
mesh[hasbothpoints[2]] = el3;
mesh[hasbothpoints[3]] = el4;
for (int k = 0; k < 4; k++)
for (int l = 0; l < 4; l++)
elementsonnode.Add (mesh[hasbothpoints[k]][l], hasbothpoints[k]);
}
else if (swap3)
{
// (*mycout) << "bad1 = " << bad1 << " bad3 = " << bad3 << "\n";
el1b.flags.illegal_valid = 0;
el2b.flags.illegal_valid = 0;
el3b.flags.illegal_valid = 0;
el4b.flags.illegal_valid = 0;
/*
(*testout) << "4->4 swap A, old els = " << endl
<< mesh[hasbothpoints[0]] << endl
<< mesh[hasbothpoints[1]] << endl
<< mesh[hasbothpoints[2]] << endl
<< mesh[hasbothpoints[3]] << endl
<< "new els = " << endl
<< el1b << endl
<< el2b << endl
<< el3b << endl
<< el4b << endl;
*/
mesh[hasbothpoints[0]] = el1b;
mesh[hasbothpoints[1]] = el2b;
mesh[hasbothpoints[2]] = el3b;
mesh[hasbothpoints[3]] = el4b;
for (int k = 0; k < 4; k++)
for (int l = 0; l < 4; l++)
elementsonnode.Add (mesh[hasbothpoints[k]][l], hasbothpoints[k]);
}
}
// if (goal == OPT_QUALITY)
if (nsuround >= 5)
{
Element hel(TET);
NgArrayMem<PointIndex, 50> suroundpts(nsuround);
NgArrayMem<bool, 50> tetused(nsuround);
Element & elem = mesh[hasbothpoints[0]];
for (int l = 0; l < 4; l++)
if (elem[l] != pi1 && elem[l] != pi2)
{
pi4 = pi3;
pi3 = elem[l];
}
hel[0] = pi1;
hel[1] = pi2;
hel[2] = pi3;
hel[3] = pi4;
hel.SetIndex (mattyp);
if (WrongOrientation (mesh.Points(), hel))
{
Swap (pi3, pi4);
hel[2] = pi3;
hel[3] = pi4;
}
// suroundpts.SetSize (nsuround);
suroundpts = PointIndex::INVALID;
suroundpts[0] = pi3;
suroundpts[1] = pi4;
tetused = false;
tetused[0] = true;
for (int l = 2; l < nsuround; l++)
{
PointIndex oldpi = suroundpts[l-1];
PointIndex newpi;
newpi.Invalidate();
for (int k = 0; k < nsuround && !newpi.IsValid(); k++)
if (!tetused[k])
{
const Element & nel = mesh[hasbothpoints[k]];
for (int k2 = 0; k2 < 4 && !newpi.IsValid(); k2++)
if (nel[k2] == oldpi)
{
newpi =
nel[0] + nel[1] + nel[2] + nel[3]
- pi1 - pi2 - oldpi;
tetused[k] = true;
suroundpts[l] = newpi;
}
}
}
bad1 = 0;
for (int k = 0; k < nsuround; k++)
{
hel[0] = pi1;
hel[1] = pi2;
hel[2] = suroundpts[k];
hel[3] = suroundpts[(k+1) % nsuround];
hel.SetIndex (mattyp);
bad1 += CalcBad (mesh.Points(), hel, 0);
}
// (*testout) << "nsuround = " << nsuround << " bad1 = " << bad1 << endl;
int bestl = -1;
int confface = -1;
int confedge = -1;
double badopt = bad1;
for (int l = 0; l < nsuround; l++)
{
bad2 = 0;
for (int k = l+1; k <= nsuround + l - 2; k++)
{
hel[0] = suroundpts[l];
hel[1] = suroundpts[k % nsuround];
hel[2] = suroundpts[(k+1) % nsuround];
hel[3] = pi2;
bad2 += CalcBad (mesh.Points(), hel, 0);
hel.flags.illegal_valid = 0;
if (!mesh.LegalTet(hel)) bad2 += 1e4;
hel[2] = suroundpts[k % nsuround];
hel[1] = suroundpts[(k+1) % nsuround];
hel[3] = pi1;
bad2 += CalcBad (mesh.Points(), hel, 0);
hel.flags.illegal_valid = 0;
if (!mesh.LegalTet(hel)) bad2 += 1e4;
}
// (*testout) << "bad2," << l << " = " << bad2 << endl;
if ( bad2 < badopt )
{
bestl = l;
badopt = bad2;
}
if (goal == OPT_CONFORM)
// (bad2 <= 100 * bad1 || bad2 <= 1e6))
{
bool nottoobad =
(bad2 <= bad1) ||
(bad2 <= 100 * bad1 && bad2 <= 1e18) ||
(bad2 <= 1e8);
for (int k = l+1; k <= nsuround + l - 2; k++)
{
INDEX_3 hi3(suroundpts[l],
suroundpts[k % nsuround],
suroundpts[(k+1) % nsuround]);
hi3.Sort();
if (faces.Used(hi3))
{
// (*testout) << "could improve face conformity, bad1 = " << bad1
// << ", bad 2 = " << bad2 << ", nottoobad = " << nottoobad << endl;
if (nottoobad)
confface = l;
}
}
for (int k = l+2; k <= nsuround+l-2; k++)
{
if (mesh.BoundaryEdge (suroundpts[l],
suroundpts[k % nsuround]))
{
/*
*testout << "could improve edge conformity, bad1 = " << bad1
<< ", bad 2 = " << bad2 << ", nottoobad = " << nottoobad << endl;
*/
if (nottoobad)
confedge = l;
}
}
}
}
if (confedge != -1)
bestl = confedge;
if (confface != -1)
bestl = confface;
if (bestl != -1)
{
// (*mycout) << nsuround << "->" << 2 * (nsuround-2) << " " << flush;
cnt++;
for (int k = bestl+1; k <= nsuround + bestl - 2; k++)
{
int k1;
hel[0] = suroundpts[bestl];
hel[1] = suroundpts[k % nsuround];
hel[2] = suroundpts[(k+1) % nsuround];
hel[3] = pi2;
hel.flags.illegal_valid = 0;
/*
(*testout) << nsuround << "-swap, new el,top = "
<< hel << endl;
*/
mesh.AddVolumeElement (hel);
for (k1 = 0; k1 < 4; k1++)
elementsonnode.Add (hel[k1], mesh.GetNE()-1);
hel[2] = suroundpts[k % nsuround];
hel[1] = suroundpts[(k+1) % nsuround];
hel[3] = pi1;
/*
(*testout) << nsuround << "-swap, new el,bot = "
<< hel << endl;
*/
mesh.AddVolumeElement (hel);
for (k1 = 0; k1 < 4; k1++)
elementsonnode.Add (hel[k1], mesh.GetNE()-1);
}
for (int k = 0; k < nsuround; k++)
{
Element & rel = mesh[hasbothpoints[k]];
/*
(*testout) << nsuround << "-swap, old el = "
<< rel << endl;
*/
rel.Delete();
for (int k1 = 0; k1 < 4; k1++)
rel[k1].Invalidate();
}
}
}
}
/*
if (onlybedges)
{
(*testout) << "bad tet: "
<< volelements.Get(i)[0]
<< volelements.Get(i)[1]
<< volelements.Get(i)[2]
<< volelements.Get(i)[3] << "\n";
if (!mesh.LegalTet (volelements.Get(i)))
cerr << "Illegal tet" << "\n";
}
*/
}
// (*mycout) << endl;
tloop.Stop();
/*
cout << "edgeused: ";
edgeused.PrintMemInfo(cout);
*/
PrintMessage (5, cnt, " swaps performed");
mesh.Compress ();
/*
if (goal == OPT_QUALITY)
{
bad1 = CalcTotalBad (mesh.Points(), mesh.VolumeElements());
// (*testout) << "Total badness = " << bad1 << endl;
}
*/
/*
for (i = 1; i <= GetNE(); i++)
if (volelements.Get(i)[0])
if (!mesh.LegalTet (volelements.Get(i)))
{
cout << "detected illegal tet, 2" << endl;
(*testout) << "detected illegal tet1: " << i << endl;
}
*/
multithread.task = savetask;
}
void MeshOptimize3d :: SwapImproveSurface (Mesh & mesh, OPTIMIZEGOAL goal,
const BitArray * working_elements,
const NgArray< NgArray<int,PointIndex::BASE>* > * idmaps)
{
NgArray< NgArray<int,PointIndex::BASE>* > locidmaps;
const NgArray< NgArray<int,PointIndex::BASE>* > * used_idmaps;
if(idmaps)
used_idmaps = idmaps;
else
{
used_idmaps = &locidmaps;
for(int i=1; i<=mesh.GetIdentifications().GetMaxNr(); i++)
{
if(mesh.GetIdentifications().GetType(i) == Identifications::PERIODIC)
{
locidmaps.Append(new NgArray<int,PointIndex::BASE>);
mesh.GetIdentifications().GetMap(i,*locidmaps.Last(),true);
}
}
}
PointIndex pi1, pi2, pi3, pi4, pi5, pi6;
PointIndex pi1other, pi2other;
int cnt = 0;
//double bad1, bad2, bad3, sbad;
double bad1, sbad;
double h;
int np = mesh.GetNP();
int ne = mesh.GetNE();
int nse = mesh.GetNSE();
int mattype, othermattype;
// contains at least all elements at node
TABLE<ElementIndex,PointIndex::BASE> elementsonnode(np);
TABLE<SurfaceElementIndex,PointIndex::BASE> surfaceelementsonnode(np);
TABLE<int,PointIndex::BASE> surfaceindicesonnode(np);
NgArray<ElementIndex> hasbothpoints;
NgArray<ElementIndex> hasbothpointsother;
PrintMessage (3, "SwapImproveSurface ");
(*testout) << "\n" << "Start SwapImproveSurface" << endl;
const char * savetask = multithread.task;
multithread.task = "Swap Improve Surface";
// find elements on node
for (ElementIndex ei = 0; ei < ne; ei++)
for (int j = 0; j < mesh[ei].GetNP(); j++)
elementsonnode.Add (mesh[ei][j], ei);
for (SurfaceElementIndex sei = 0; sei < nse; sei++)
for(int j=0; j<mesh[sei].GetNP(); j++)
{
surfaceelementsonnode.Add(mesh[sei][j], sei);
if(!surfaceindicesonnode[mesh[sei][j]].Contains(mesh[sei].GetIndex()))
surfaceindicesonnode.Add(mesh[sei][j],mesh[sei].GetIndex());
}
bool periodic;
int idnum(-1);
// INDEX_2_HASHTABLE<int> edgeused(2 * ne + 5);
INDEX_2_CLOSED_HASHTABLE<int> edgeused(12 * ne + 5);
for (ElementIndex ei = 0; ei < ne; ei++)
{
if (multithread.terminate)
break;
multithread.percent = 100.0 * (ei+1) / ne;
if (mesh.ElementType(ei) == FIXEDELEMENT)
continue;
if(working_elements &&
ei < working_elements->Size() &&
!working_elements->Test(ei))
continue;
if (mesh[ei].IsDeleted())
continue;
if ((goal == OPT_LEGAL) &&
mesh.LegalTet (mesh[ei]) &&
CalcBad (mesh.Points(), mesh[ei], 0) < 1e3)
continue;
const Element & elemi = mesh[ei];
//Element elemi = mesh[ei];
if (elemi.IsDeleted()) continue;
mattype = elemi.GetIndex();
bool swapped = false;
for (int j = 0; !swapped && j < 6; j++)
{
// loop over edges
static const int tetedges[6][2] =
{ { 0, 1 }, { 0, 2 }, { 0, 3 },
{ 1, 2 }, { 1, 3 }, { 2, 3 } };
pi1 = elemi[tetedges[j][0]];
pi2 = elemi[tetedges[j][1]];
if (pi2 < pi1)
Swap (pi1, pi2);
bool found = false;
for(int k=0; !found && k<used_idmaps->Size(); k++)
{
if(pi2 < (*used_idmaps)[k]->Size() + PointIndex::BASE)
{
pi1other = (*(*used_idmaps)[k])[pi1];
pi2other = (*(*used_idmaps)[k])[pi2];
found = (pi1other != 0 && pi2other != 0 && pi1other != pi1 && pi2other != pi2);
if(found)
idnum = k;
}
}
if(found)
periodic = true;
else
{
periodic = false;
pi1other = pi1; pi2other = pi2;
}
if (!mesh.BoundaryEdge (pi1, pi2) ||
mesh.IsSegment(pi1, pi2)) continue;
othermattype = -1;
INDEX_2 i2 (pi1, pi2);
i2.Sort();
if (edgeused.Used(i2)) continue;
edgeused.Set (i2, 1);
if(periodic)
{
i2.I1() = pi1other;
i2.I2() = pi2other;
i2.Sort();
edgeused.Set(i2,1);
}
hasbothpoints.SetSize (0);
hasbothpointsother.SetSize (0);
for (int k = 0; k < elementsonnode[pi1].Size(); k++)
{
bool has1 = false, has2 = false;
ElementIndex elnr = elementsonnode[pi1][k];
const Element & elem = mesh[elnr];
if (elem.IsDeleted()) continue;
for (int l = 0; l < elem.GetNP(); l++)
{
if (elem[l] == pi1) has1 = true;
if (elem[l] == pi2) has2 = true;
}
if (has1 && has2)
{
if(othermattype == -1 && elem.GetIndex() != mattype)
othermattype = elem.GetIndex();
if(elem.GetIndex() == mattype)
{
// only once
for (int l = 0; l < hasbothpoints.Size(); l++)
if (hasbothpoints[l] == elnr)
has1 = 0;
if (has1)
hasbothpoints.Append (elnr);
}
else if(elem.GetIndex() == othermattype)
{
// only once
for (int l = 0; l < hasbothpointsother.Size(); l++)
if (hasbothpointsother[l] == elnr)
has1 = 0;
if (has1)
hasbothpointsother.Append (elnr);
}
else
{
cout << "problem with domain indices" << endl;
(*testout) << "problem: mattype = " << mattype << ", othermattype = " << othermattype
<< " elem " << elem << " mt " << elem.GetIndex() << endl
<< " pi1 " << pi1 << " pi2 " << pi2 << endl;
(*testout) << "hasbothpoints:" << endl;
for(int ii=0; ii < hasbothpoints.Size(); ii++)
(*testout) << mesh[hasbothpoints[ii]] << endl;
(*testout) << "hasbothpointsother:" << endl;
for(int ii=0; ii < hasbothpointsother.Size(); ii++)
(*testout) << mesh[hasbothpointsother[ii]] << endl;
}
}
}
if(hasbothpointsother.Size() > 0 && periodic)
throw NgException("SwapImproveSurface: Assumption about interface/periodicity wrong!");
if(periodic)
{
for (int k = 0; k < elementsonnode[pi1other].Size(); k++)
{
bool has1 = false, has2 = false;
ElementIndex elnr = elementsonnode[pi1other][k];
const Element & elem = mesh[elnr];
if (elem.IsDeleted()) continue;
for (int l = 0; l < elem.GetNP(); l++)
{
if (elem[l] == pi1other) has1 = true;
if (elem[l] == pi2other) has2 = true;
}
if (has1 && has2)
{
if(othermattype == -1)
othermattype = elem.GetIndex();
// only once
for (int l = 0; l < hasbothpointsother.Size(); l++)
if (hasbothpointsother[l] == elnr)
has1 = 0;
if (has1)
hasbothpointsother.Append (elnr);
}
}
}
//for(k=0; k<hasbothpoints.Size(); k++)
// (*testout) << "hasbothpoints["<<k<<"]: " << mesh[hasbothpoints[k]] << endl;
SurfaceElementIndex sel1=-1,sel2=-1;
SurfaceElementIndex sel1other=-1,sel2other=-1;
for(int k = 0; k < surfaceelementsonnode[pi1].Size(); k++)
{
bool has1 = false, has2 = false;
SurfaceElementIndex elnr = surfaceelementsonnode[pi1][k];
const Element2d & elem = mesh[elnr];
if (elem.IsDeleted()) continue;
for (int l = 0; l < elem.GetNP(); l++)
{
if (elem[l] == pi1) has1 = true;
if (elem[l] == pi2) has2 = true;
}
if(has1 && has2 && elnr != sel2)
{
sel1 = sel2;
sel2 = elnr;
}
}
if(periodic)
{
for(int k = 0; k < surfaceelementsonnode[pi1other].Size(); k++)
{
bool has1 = false, has2 = false;
SurfaceElementIndex elnr = surfaceelementsonnode[pi1other][k];
const Element2d & elem = mesh[elnr];
if (elem.IsDeleted()) continue;
for (int l = 0; l < elem.GetNP(); l++)
{
if (elem[l] == pi1other) has1 = true;
if (elem[l] == pi2other) has2 = true;
}
if(has1 && has2 && elnr != sel2other)
{
sel1other = sel2other;
sel2other = elnr;
}
}
}
else
{
sel1other = sel1; sel2other = sel2;
}
//(*testout) << "sel1 " << sel1 << " sel2 " << sel2 << " el " << mesh[sel1] << " resp. " << mesh[sel2] << endl;
PointIndex sp1(0), sp2(0);
PointIndex sp1other, sp2other;
for(int l=0; l<mesh[sel1].GetNP(); l++)
if(mesh[sel1][l] != pi1 && mesh[sel1][l] != pi2)
sp1 = mesh[sel1][l];
for(int l=0; l<mesh[sel2].GetNP(); l++)
if(mesh[sel2][l] != pi1 && mesh[sel2][l] != pi2)
sp2 = mesh[sel2][l];
if(periodic)
{
sp1other = (*(*used_idmaps)[idnum])[sp1];
sp2other = (*(*used_idmaps)[idnum])[sp2];
bool change = false;
for(int l=0; !change && l<mesh[sel1other].GetNP(); l++)
change = (sp2other == mesh[sel1other][l]);
if(change)
{
SurfaceElementIndex aux = sel1other;
sel1other = sel2other;
sel2other = aux;
}
}
else
{
sp1other = sp1; sp2other = sp2;
}
Vec<3> v1 = mesh[sp1]-mesh[pi1],
v2 = mesh[sp2]-mesh[pi1],
v3 = mesh[sp1]-mesh[pi2],
v4 = mesh[sp2]-mesh[pi2];
double vol = 0.5*(Cross(v1,v2).Length() + Cross(v3,v4).Length());
h = sqrt(vol);
h = 0;
sbad = CalcTriangleBadness (mesh[pi1],mesh[pi2],mesh[sp1],0,0) +
CalcTriangleBadness (mesh[pi2],mesh[pi1],mesh[sp2],0,0);
bool puretet = true;
for (int k = 0; puretet && k < hasbothpoints.Size(); k++)
if (mesh[hasbothpoints[k]].GetType () != TET)
puretet = false;
for (int k = 0; puretet && k < hasbothpointsother.Size(); k++)
if (mesh[hasbothpointsother[k]].GetType () != TET)
puretet = false;
if (!puretet)
continue;
int nsuround = hasbothpoints.Size();
int nsuroundother = hasbothpointsother.Size();
NgArray < int > outerpoints(nsuround+1);
outerpoints[0] = sp1;
for(int i=0; i<nsuround; i++)
{
bool done = false;
for(int jj=i; !done && jj<hasbothpoints.Size(); jj++)
{
for(int k=0; !done && k<4; k++)
if(mesh[hasbothpoints[jj]][k] == outerpoints[i])
{
done = true;
for(int l=0; l<4; l++)
if(mesh[hasbothpoints[jj]][l] != pi1 &&
mesh[hasbothpoints[jj]][l] != pi2 &&
mesh[hasbothpoints[jj]][l] != outerpoints[i])
outerpoints[i+1] = mesh[hasbothpoints[jj]][l];
}
if(done)
{
ElementIndex aux = hasbothpoints[i];
hasbothpoints[i] = hasbothpoints[jj];
hasbothpoints[jj] = aux;
}
}
}
if(outerpoints[nsuround] != sp2)
{
cerr << "OJE OJE OJE" << endl;
(*testout) << "OJE OJE OJE" << endl;
(*testout) << "hasbothpoints: " << endl;
for(int ii=0; ii < hasbothpoints.Size(); ii++)
{
(*testout) << mesh[hasbothpoints[ii]] << endl;
for(int jj=0; jj<mesh[hasbothpoints[ii]].GetNP(); jj++)
if(mesh.mlbetweennodes[mesh[hasbothpoints[ii]][jj]][0] > 0)
(*testout) << mesh[hasbothpoints[ii]][jj] << " between "
<< mesh.mlbetweennodes[mesh[hasbothpoints[ii]][jj]][0] << " and "
<< mesh.mlbetweennodes[mesh[hasbothpoints[ii]][jj]][1] << endl;
}
(*testout) << "outerpoints: " << outerpoints << endl;
(*testout) << "sel1 " << mesh[sel1] << endl
<< "sel2 " << mesh[sel2] << endl;
for(int ii=0; ii<3; ii++)
{
if(mesh.mlbetweennodes[mesh[sel1][ii]][0] > 0)
(*testout) << mesh[sel1][ii] << " between "
<< mesh.mlbetweennodes[mesh[sel1][ii]][0] << " and "
<< mesh.mlbetweennodes[mesh[sel1][ii]][1] << endl;
if(mesh.mlbetweennodes[mesh[sel2][ii]][0] > 0)
(*testout) << mesh[sel2][ii] << " between "
<< mesh.mlbetweennodes[mesh[sel2][ii]][0] << " and "
<< mesh.mlbetweennodes[mesh[sel2][ii]][1] << endl;
}
}
NgArray < int > outerpointsother;
if(nsuroundother > 0)
{
outerpointsother.SetSize(nsuroundother+1);
outerpointsother[0] = sp2other;
}
for(int i=0; i<nsuroundother; i++)
{
bool done = false;
for(int jj=i; !done && jj<hasbothpointsother.Size(); jj++)
{
for(int k=0; !done && k<4; k++)
if(mesh[hasbothpointsother[jj]][k] == outerpointsother[i])
{
done = true;
for(int l=0; l<4; l++)
if(mesh[hasbothpointsother[jj]][l] != pi1other &&
mesh[hasbothpointsother[jj]][l] != pi2other &&
mesh[hasbothpointsother[jj]][l] != outerpointsother[i])
outerpointsother[i+1] = mesh[hasbothpointsother[jj]][l];
}
if(done)
{
ElementIndex aux = hasbothpointsother[i];
hasbothpointsother[i] = hasbothpointsother[jj];
hasbothpointsother[jj] = aux;
}
}
}
if(nsuroundother > 0 && outerpointsother[nsuroundother] != sp1other)
{
cerr << "OJE OJE OJE (other)" << endl;
(*testout) << "OJE OJE OJE (other)" << endl;
(*testout) << "pi1 " << pi1 << " pi2 " << pi2 << " sp1 " << sp1 << " sp2 " << sp2 << endl;
(*testout) << "hasbothpoints: " << endl;
for(int ii=0; ii < hasbothpoints.Size(); ii++)
{
(*testout) << mesh[hasbothpoints[ii]] << endl;
for(int jj=0; jj<mesh[hasbothpoints[ii]].GetNP(); jj++)
if(mesh.mlbetweennodes[mesh[hasbothpoints[ii]][jj]][0] > 0)
(*testout) << mesh[hasbothpoints[ii]][jj] << " between "
<< mesh.mlbetweennodes[mesh[hasbothpoints[ii]][jj]][0] << " and "
<< mesh.mlbetweennodes[mesh[hasbothpoints[ii]][jj]][1] << endl;
}
(*testout) << "outerpoints: " << outerpoints << endl;
(*testout) << "sel1 " << mesh[sel1] << endl
<< "sel2 " << mesh[sel2] << endl;
for(int ii=0; ii<3; ii++)
{
if(mesh.mlbetweennodes[mesh[sel1][ii]][0] > 0)
(*testout) << mesh[sel1][ii] << " between "
<< mesh.mlbetweennodes[mesh[sel1][ii]][0] << " and "
<< mesh.mlbetweennodes[mesh[sel1][ii]][1] << endl;
if(mesh.mlbetweennodes[mesh[sel2][ii]][0] > 0)
(*testout) << mesh[sel2][ii] << " between "
<< mesh.mlbetweennodes[mesh[sel2][ii]][0] << " and "
<< mesh.mlbetweennodes[mesh[sel2][ii]][1] << endl;
}
(*testout) << "pi1other " << pi1other << " pi2other " << pi2other << " sp1other " << sp1other << " sp2other " << sp2other << endl;
(*testout) << "hasbothpointsother: " << endl;
for(int ii=0; ii < hasbothpointsother.Size(); ii++)
{
(*testout) << mesh[hasbothpointsother[ii]] << endl;
for(int jj=0; jj<mesh[hasbothpointsother[ii]].GetNP(); jj++)
if(mesh.mlbetweennodes[mesh[hasbothpointsother[ii]][jj]][0] > 0)
(*testout) << mesh[hasbothpointsother[ii]][jj] << " between "
<< mesh.mlbetweennodes[mesh[hasbothpointsother[ii]][jj]][0] << " and "
<< mesh.mlbetweennodes[mesh[hasbothpointsother[ii]][jj]][1] << endl;
}
(*testout) << "outerpoints: " << outerpointsother << endl;
(*testout) << "sel1other " << mesh[sel1other] << endl
<< "sel2other " << mesh[sel2other] << endl;
for(int ii=0; ii<3; ii++)
{
if(mesh.mlbetweennodes[mesh[sel1other][ii]][0] > 0)
(*testout) << mesh[sel1other][ii] << " between "
<< mesh.mlbetweennodes[mesh[sel1other][ii]][0] << " and "
<< mesh.mlbetweennodes[mesh[sel1other][ii]][1] << endl;
if(mesh.mlbetweennodes[mesh[sel2other][ii]][0] > 0)
(*testout) << mesh[sel2other][ii] << " between "
<< mesh.mlbetweennodes[mesh[sel2other][ii]][0] << " and "
<< mesh.mlbetweennodes[mesh[sel2other][ii]][1] << endl;
}
}
bad1=0;
for(int i=0; i<hasbothpoints.Size(); i++)
bad1 += CalcBad(mesh.Points(), mesh[hasbothpoints[i]],h);
for(int i=0; i<hasbothpointsother.Size(); i++)
bad1 += CalcBad(mesh.Points(), mesh[hasbothpointsother[i]],h);
bad1 /= double(hasbothpoints.Size() + hasbothpointsother.Size());
int startpoints,startpointsother;
if(outerpoints.Size() == 3)
startpoints = 1;
else if(outerpoints.Size() == 4)
startpoints = 2;
else
startpoints = outerpoints.Size();
if(outerpointsother.Size() == 3)
startpointsother = 1;
else if(outerpointsother.Size() == 4)
startpointsother = 2;
else
startpointsother = outerpointsother.Size();
NgArray < NgArray < Element* > * > newelts(startpoints);
NgArray < NgArray < Element* > * > neweltsother(startpointsother);
double minbad = 1e50, minbadother = 1e50, currbad;
int minpos = -1, minposother = -1;
//(*testout) << "pi1 " << pi1 << " pi2 " << pi2 << " outerpoints " << outerpoints << endl;
for(int i=0; i<startpoints; i++)
{
newelts[i] = new NgArray <Element*>(2*(nsuround-1));
for(int jj=0; jj<nsuround-1; jj++)
{
(*newelts[i])[2*jj] = new Element(TET);
(*newelts[i])[2*jj+1] = new Element(TET);
Element & newel1 = *((*newelts[i])[2*jj]);
Element & newel2 = *((*newelts[i])[2*jj+1]);
newel1[0] = pi1;
newel1[1] = outerpoints[i];
newel1[2] = outerpoints[(i+jj+1)%outerpoints.Size()];
newel1[3] = outerpoints[(i+jj+2)%outerpoints.Size()];
newel2[0] = pi2;
newel2[1] = outerpoints[i];
newel2[2] = outerpoints[(i+jj+2)%outerpoints.Size()];
newel2[3] = outerpoints[(i+jj+1)%outerpoints.Size()];
//(*testout) << "j " << j << " newel1 " << newel1[0] << " "<< newel1[1] << " "<< newel1[2] << " "<< newel1[3] << endl
// << " newel2 " << newel2[0] << " "<< newel2[1] << " "<< newel2[2] << " "<< newel2[3] << endl;
newel1.SetIndex(mattype);
newel2.SetIndex(mattype);
}
bool wrongorientation = true;
for(int jj = 0; wrongorientation && jj<newelts[i]->Size(); jj++)
wrongorientation = wrongorientation && WrongOrientation(mesh.Points(), *(*newelts[i])[jj]);
currbad = 0;
for(int jj=0; jj<newelts[i]->Size(); jj++)
{
if(wrongorientation)
Swap((*(*newelts[i])[jj])[2],(*(*newelts[i])[jj])[3]);
// not two new faces on same surface
NgArray<int> face_index;
for(int k = 0; k<surfaceindicesonnode[(*(*newelts[i])[jj])[0]].Size(); k++)
face_index.Append(surfaceindicesonnode[(*(*newelts[i])[jj])[0]][k]);
for(int k=1; k<4; k++)
{
for(int l=0; l<face_index.Size(); l++)
{
if(face_index[l] != -1 &&
!(surfaceindicesonnode[(*(*newelts[i])[jj])[k]].Contains(face_index[l])))
face_index[l] = -1;
}
}
for(int k=0; k<face_index.Size(); k++)
if(face_index[k] != -1)
currbad += 1e12;
currbad += CalcBad(mesh.Points(),*(*newelts[i])[jj],h);
}
//currbad /= double(newelts[i]->Size());
if(currbad < minbad)
{
minbad = currbad;
minpos = i;
}
}
if(startpointsother == 0)
minbadother = 0;
for(int i=0; i<startpointsother; i++)
{
neweltsother[i] = new NgArray <Element*>(2*(nsuroundother));
for(int jj=0; jj<nsuroundother; jj++)
{
(*neweltsother[i])[2*jj] = new Element(TET);
(*neweltsother[i])[2*jj+1] = new Element(TET);
Element & newel1 = *((*neweltsother[i])[2*jj]);
Element & newel2 = *((*neweltsother[i])[2*jj+1]);
newel1[0] = pi1other;
newel1[1] = outerpointsother[i];
newel1[2] = outerpointsother[(i+jj+1)%outerpointsother.Size()];
newel1[3] = outerpointsother[(i+jj+2)%outerpointsother.Size()];
newel2[0] = pi2other;
newel2[1] = outerpointsother[i];
newel2[2] = outerpointsother[(i+jj+2)%outerpointsother.Size()];
newel2[3] = outerpointsother[(i+jj+1)%outerpointsother.Size()];
//(*testout) << "j " << j << " newel1 " << newel1[0] << " "<< newel1[1] << " "<< newel1[2] << " "<< newel1[3] << endl
// << " newel2 " << newel2[0] << " "<< newel2[1] << " "<< newel2[2] << " "<< newel2[3] << endl;
newel1.SetIndex(othermattype);
newel2.SetIndex(othermattype);
}
bool wrongorientation = true;
for(int jj = 0; wrongorientation && jj<neweltsother[i]->Size(); jj++)
wrongorientation = wrongorientation && WrongOrientation(mesh.Points(), *(*neweltsother[i])[jj]);
currbad = 0;
for(int jj=0; jj<neweltsother[i]->Size(); jj++)
{
if(wrongorientation)
Swap((*(*neweltsother[i])[jj])[2],(*(*neweltsother[i])[jj])[3]);
currbad += CalcBad(mesh.Points(),*(*neweltsother[i])[jj],h);
}
//currbad /= double(neweltsother[i]->Size());
if(currbad < minbadother)
{
minbadother = currbad;
minposother = i;
}
}
//(*testout) << "minbad " << minbad << " bad1 " << bad1 << endl;
double sbadnew = CalcTriangleBadness (mesh[pi1],mesh[sp2],mesh[sp1],0,0) +
CalcTriangleBadness (mesh[pi2],mesh[sp1],mesh[sp2],0,0);
int denom = newelts[minpos]->Size();
if(minposother >= 0)
denom += neweltsother[minposother]->Size();
if((minbad+minbadother)/double(denom) < bad1 &&
sbadnew < sbad)
{
cnt++;
swapped = true;
int start1 = -1;
for(int l=0; l<3; l++)
if(mesh[sel1][l] == pi1)
start1 = l;
if(mesh[sel1][(start1+1)%3] == pi2)
{
mesh[sel1][0] = pi1;
mesh[sel1][1] = sp2;
mesh[sel1][2] = sp1;
mesh[sel2][0] = pi2;
mesh[sel2][1] = sp1;
mesh[sel2][2] = sp2;
}
else
{
mesh[sel1][0] = pi2;
mesh[sel1][1] = sp2;
mesh[sel1][2] = sp1;
mesh[sel2][0] = pi1;
mesh[sel2][1] = sp1;
mesh[sel2][2] = sp2;
}
//(*testout) << "changed surface element " << sel1 << " to " << mesh[sel1] << ", " << sel2 << " to " << mesh[sel2] << endl;
for(int l=0; l<3; l++)
{
surfaceelementsonnode.Add(mesh[sel1][l],sel1);
surfaceelementsonnode.Add(mesh[sel2][l],sel2);
}
if(periodic)
{
start1 = -1;
for(int l=0; l<3; l++)
if(mesh[sel1other][l] == pi1other)
start1 = l;
//(*testout) << "changed surface elements " << mesh[sel1other] << " and " << mesh[sel2other] << endl;
if(mesh[sel1other][(start1+1)%3] == pi2other)
{
mesh[sel1other][0] = pi1other;
mesh[sel1other][1] = sp2other;
mesh[sel1other][2] = sp1other;
mesh[sel2other][0] = pi2other;
mesh[sel2other][1] = sp1other;
mesh[sel2other][2] = sp2other;
//(*testout) << " with rule 1" << endl;
}
else
{
mesh[sel1other][0] = pi2other;
mesh[sel1other][1] = sp2other;
mesh[sel1other][2] = sp1other;
mesh[sel2other][0] = pi1other;
mesh[sel2other][1] = sp1other;
mesh[sel2other][2] = sp2other;
//(*testout) << " with rule 2" << endl;
}
//(*testout) << " to " << mesh[sel1other] << " and " << mesh[sel2other] << endl;
//(*testout) << " and surface element " << sel1other << " to " << mesh[sel1other] << ", " << sel2other << " to " << mesh[sel2other] << endl;
for(int l=0; l<3; l++)
{
surfaceelementsonnode.Add(mesh[sel1other][l],sel1other);
surfaceelementsonnode.Add(mesh[sel2other][l],sel2other);
}
}
for(int i=0; i<hasbothpoints.Size(); i++)
{
mesh[hasbothpoints[i]] = *(*newelts[minpos])[i];
for(int l=0; l<4; l++)
elementsonnode.Add((*(*newelts[minpos])[i])[l],hasbothpoints[i]);
}
for(int i=hasbothpoints.Size(); i<(*newelts[minpos]).Size(); i++)
{
ElementIndex ni = mesh.AddVolumeElement(*(*newelts[minpos])[i]);
for(int l=0; l<4; l++)
elementsonnode.Add((*(*newelts[minpos])[i])[l],ni);
}
if(hasbothpointsother.Size() > 0)
{
for(int i=0; i<hasbothpointsother.Size(); i++)
{
mesh[hasbothpointsother[i]] = *(*neweltsother[minposother])[i];
for(int l=0; l<4; l++)
elementsonnode.Add((*(*neweltsother[minposother])[i])[l],hasbothpointsother[i]);
}
for(int i=hasbothpointsother.Size(); i<(*neweltsother[minposother]).Size(); i++)
{
ElementIndex ni = mesh.AddVolumeElement(*(*neweltsother[minposother])[i]);
for(int l=0; l<4; l++)
elementsonnode.Add((*(*neweltsother[minposother])[i])[l],ni);
}
}
}
for(int i=0; i<newelts.Size(); i++)
{
for(int jj=0; jj<newelts[i]->Size(); jj++)
delete (*newelts[i])[jj];
delete newelts[i];
}
for(int i=0; i<neweltsother.Size(); i++)
{
for(int jj=0; jj<neweltsother[i]->Size(); jj++)
delete (*neweltsother[i])[jj];
delete neweltsother[i];
}
}
}
PrintMessage (5, cnt, " swaps performed");
for(int i=0; i<locidmaps.Size(); i++)
delete locidmaps[i];
mesh.Compress ();
multithread.task = savetask;
}
/*
2 -> 3 conversion
*/
void MeshOptimize3d :: SwapImprove2 (Mesh & mesh, OPTIMIZEGOAL goal)
{
static Timer t("MeshOptimize3d::SwapImprove2"); RegionTimer reg(t);
PointIndex pi1, pi2, pi3, pi4, pi5;
Element el21(TET), el22(TET), el31(TET), el32(TET), el33(TET);
int cnt = 0;
double bad1, bad2;
int np = mesh.GetNP();
int ne = mesh.GetNE();
int nse = mesh.GetNSE();
if (goal == OPT_CONFORM) return;
// contains at least all elements at node
TABLE<ElementIndex, PointIndex::BASE> elementsonnode(np);
TABLE<SurfaceElementIndex, PointIndex::BASE> belementsonnode(np);
PrintMessage (3, "SwapImprove2 ");
(*testout) << "\n" << "Start SwapImprove2" << "\n";
// TestOk();
/*
CalcSurfacesOfNode ();
for (i = 1; i <= GetNE(); i++)
if (volelements.Get(i)[0])
if (!mesh.LegalTet (volelements.Get(i)))
{
cout << "detected illegal tet, 1" << endl;
(*testout) << "detected illegal tet1: " << i << endl;
}
*/
// Calculate total badness
bad1 = CalcTotalBad (mesh.Points(), mesh.VolumeElements());
(*testout) << "Total badness = " << bad1 << endl;
// cout << "tot bad = " << bad1 << endl;
// find elements on node
for (ElementIndex ei = 0; ei < ne; ei++)
for (int j = 0; j < mesh[ei].GetNP(); j++)
elementsonnode.Add (mesh[ei][j], ei);
for (SurfaceElementIndex sei = 0; sei < nse; sei++)
for (int j = 0; j < 3; j++)
belementsonnode.Add (mesh[sei][j], sei);
for (ElementIndex eli1 = 0; eli1 < ne; eli1++)
{
if (multithread.terminate)
break;
if (mesh.ElementType (eli1) == FIXEDELEMENT)
continue;
if (mesh[eli1].GetType() != TET)
continue;
if ((goal == OPT_LEGAL) &&
mesh.LegalTet (mesh[eli1]) &&
CalcBad (mesh.Points(), mesh[eli1], 0) < 1e3)
continue;
if(mesh.GetDimension()==3 && mp.only3D_domain_nr && mp.only3D_domain_nr != mesh.VolumeElement(eli1).GetIndex())
continue;
// cout << "eli = " << eli1 << endl;
// (*testout) << "swapimp2, eli = " << eli1 << "; el = " << mesh[eli1] << endl;
for (int j = 0; j < 4; j++)
{
// loop over faces
Element & elem = mesh[eli1];
// if (elem[0] < PointIndex::BASE) continue;
if (elem.IsDeleted()) continue;
int mattyp = elem.GetIndex();
switch (j)
{
case 0:
pi1 = elem.PNum(1); pi2 = elem.PNum(2);
pi3 = elem.PNum(3); pi4 = elem.PNum(4);
break;
case 1:
pi1 = elem.PNum(1); pi2 = elem.PNum(4);
pi3 = elem.PNum(2); pi4 = elem.PNum(3);
break;
case 2:
pi1 = elem.PNum(1); pi2 = elem.PNum(3);
pi3 = elem.PNum(4); pi4 = elem.PNum(2);
break;
case 3:
pi1 = elem.PNum(2); pi2 = elem.PNum(4);
pi3 = elem.PNum(3); pi4 = elem.PNum(1);
break;
}
bool bface = 0;
for (int k = 0; k < belementsonnode[pi1].Size(); k++)
{
const Element2d & bel =
mesh[belementsonnode[pi1][k]];
bool bface1 = 1;
for (int l = 0; l < 3; l++)
if (bel[l] != pi1 && bel[l] != pi2 && bel[l] != pi3)
{
bface1 = 0;
break;
}
if (bface1)
{
bface = 1;
break;
}
}
if (bface) continue;
NgFlatArray<ElementIndex> row = elementsonnode[pi1];
for (int k = 0; k < row.Size(); k++)
{
ElementIndex eli2 = row[k];
// cout << "\rei1 = " << eli1 << ", pi1 = " << pi1 << ", k = " << k << ", ei2 = " << eli2
// << ", getne = " << mesh.GetNE();
if ( eli1 != eli2 )
{
Element & elem2 = mesh[eli2];
if (elem2.IsDeleted()) continue;
if (elem2.GetType() != TET)
continue;
int comnodes=0;
for (int l = 1; l <= 4; l++)
if (elem2.PNum(l) == pi1 || elem2.PNum(l) == pi2 ||
elem2.PNum(l) == pi3)
{
comnodes++;
}
else
{
pi5 = elem2.PNum(l);
}
if (comnodes == 3)
{
bad1 = CalcBad (mesh.Points(), elem, 0) +
CalcBad (mesh.Points(), elem2, 0);
if (!mesh.LegalTet(elem) ||
!mesh.LegalTet(elem2))
bad1 += 1e4;
el31.PNum(1) = pi1;
el31.PNum(2) = pi2;
el31.PNum(3) = pi5;
el31.PNum(4) = pi4;
el31.SetIndex (mattyp);
el32.PNum(1) = pi2;
el32.PNum(2) = pi3;
el32.PNum(3) = pi5;
el32.PNum(4) = pi4;
el32.SetIndex (mattyp);
el33.PNum(1) = pi3;
el33.PNum(2) = pi1;
el33.PNum(3) = pi5;
el33.PNum(4) = pi4;
el33.SetIndex (mattyp);
bad2 = CalcBad (mesh.Points(), el31, 0) +
CalcBad (mesh.Points(), el32, 0) +
CalcBad (mesh.Points(), el33, 0);
el31.flags.illegal_valid = 0;
el32.flags.illegal_valid = 0;
el33.flags.illegal_valid = 0;
if (!mesh.LegalTet(el31) ||
!mesh.LegalTet(el32) ||
!mesh.LegalTet(el33))
bad2 += 1e4;
bool do_swap = (bad2 < bad1);
if ( ((bad2 < 1e6) || (bad2 < 10 * bad1)) &&
mesh.BoundaryEdge (pi4, pi5))
do_swap = 1;
if (do_swap)
{
// cout << "do swap, eli1 = " << eli1 << "; eli2 = " << eli2 << endl;
// (*mycout) << "2->3 " << flush;
cnt++;
el31.flags.illegal_valid = 0;
el32.flags.illegal_valid = 0;
el33.flags.illegal_valid = 0;
mesh[eli1] = el31;
mesh[eli2] = el32;
ElementIndex neli =
mesh.AddVolumeElement (el33);
/*
if (!LegalTet(el31) || !LegalTet(el32) ||
!LegalTet(el33))
{
cout << "Swap to illegal tets !!!" << endl;
}
*/
// cout << "neli = " << neli << endl;
for (int l = 0; l < 4; l++)
{
elementsonnode.Add (el31[l], eli1);
elementsonnode.Add (el32[l], eli2);
elementsonnode.Add (el33[l], neli);
}
break;
}
}
}
}
}
}
PrintMessage (5, cnt, " swaps performed");
/*
CalcSurfacesOfNode ();
for (i = 1; i <= GetNE(); i++)
if (volelements.Get(i).PNum(1))
if (!LegalTet (volelements.Get(i)))
{
cout << "detected illegal tet, 2" << endl;
(*testout) << "detected illegal tet2: " << i << endl;
}
*/
bad1 = CalcTotalBad (mesh.Points(), mesh.VolumeElements());
(*testout) << "Total badness = " << bad1 << endl;
(*testout) << "swapimprove2 done" << "\n";
// (*mycout) << "Vol = " << CalcVolume (points, volelements) << "\n";
}
/*
void Mesh :: SwapImprove2 (OPTIMIZEGOAL goal)
{
int i, j;
int eli1, eli2;
int mattyp;
Element el31(4), el32(4), el33(4);
double bad1, bad2;
INDEX_3_HASHTABLE<INDEX_2> elsonface (GetNE());
(*mycout) << "SwapImprove2 " << endl;
(*testout) << "\n" << "Start SwapImprove2" << "\n";
// Calculate total badness
if (goal == OPT_QUALITY)
{
double bad1 = CalcTotalBad (points, volelements);
(*testout) << "Total badness = " << bad1 << endl;
}
// find elements on node
Element2d face;
for (i = 1; i <= GetNE(); i++)
if ( (i > eltyps.Size()) || (eltyps.Get(i) != FIXEDELEMENT) )
{
const Element & el = VolumeElement(i);
if (!el.PNum(1)) continue;
for (j = 1; j <= 4; j++)
{
el.GetFace (j, face);
INDEX_3 i3 (face.PNum(1), face.PNum(2), face.PNum(3));
i3.Sort();
int bnr, posnr;
if (!elsonface.PositionCreate (i3, bnr, posnr))
{
INDEX_2 i2;
elsonface.GetData (bnr, posnr, i3, i2);
i2.I2() = i;
elsonface.SetData (bnr, posnr, i3, i2);
}
else
{
INDEX_2 i2 (i, 0);
elsonface.SetData (bnr, posnr, i3, i2);
}
// if (elsonface.Used (i3))
// {
// INDEX_2 i2 = elsonface.Get(i3);
// i2.I2() = i;
// elsonface.Set (i3, i2);
// }
// else
// {
// INDEX_2 i2 (i, 0);
// elsonface.Set (i3, i2);
// }
}
}
BitArray original(GetNE());
original.Set();
for (i = 1; i <= GetNSE(); i++)
{
const Element2d & sface = SurfaceElement(i);
INDEX_3 i3 (sface.PNum(1), sface.PNum(2), sface.PNum(3));
i3.Sort();
INDEX_2 i2(0,0);
elsonface.Set (i3, i2);
}
for (i = 1; i <= elsonface.GetNBags(); i++)
for (j = 1; j <= elsonface.GetBagSize(i); j++)
{
INDEX_3 i3;
INDEX_2 i2;
elsonface.GetData (i, j, i3, i2);
int eli1 = i2.I1();
int eli2 = i2.I2();
if (eli1 && eli2 && original.Test(eli1) && original.Test(eli2) )
{
Element & elem = volelements.Elem(eli1);
Element & elem2 = volelements.Elem(eli2);
int pi1 = i3.I1();
int pi2 = i3.I2();
int pi3 = i3.I3();
int pi4 = elem.PNum(1) + elem.PNum(2) + elem.PNum(3) + elem.PNum(4) - pi1 - pi2 - pi3;
int pi5 = elem2.PNum(1) + elem2.PNum(2) + elem2.PNum(3) + elem2.PNum(4) - pi1 - pi2 - pi3;
el31.PNum(1) = pi1;
el31.PNum(2) = pi2;
el31.PNum(3) = pi3;
el31.PNum(4) = pi4;
el31.SetIndex (mattyp);
if (WrongOrientation (points, el31))
swap (pi1, pi2);
bad1 = CalcBad (points, elem, 0) +
CalcBad (points, elem2, 0);
// if (!LegalTet(elem) || !LegalTet(elem2))
// bad1 += 1e4;
el31.PNum(1) = pi1;
el31.PNum(2) = pi2;
el31.PNum(3) = pi5;
el31.PNum(4) = pi4;
el31.SetIndex (mattyp);
el32.PNum(1) = pi2;
el32.PNum(2) = pi3;
el32.PNum(3) = pi5;
el32.PNum(4) = pi4;
el32.SetIndex (mattyp);
el33.PNum(1) = pi3;
el33.PNum(2) = pi1;
el33.PNum(3) = pi5;
el33.PNum(4) = pi4;
el33.SetIndex (mattyp);
bad2 = CalcBad (points, el31, 0) +
CalcBad (points, el32, 0) +
CalcBad (points, el33, 0);
// if (!LegalTet(el31) || !LegalTet(el32) ||
// !LegalTet(el33))
// bad2 += 1e4;
int swap = (bad2 < bad1);
INDEX_2 hi2b(pi4, pi5);
hi2b.Sort();
if ( ((bad2 < 1e6) || (bad2 < 10 * bad1)) &&
boundaryedges->Used (hi2b) )
swap = 1;
if (swap)
{
(*mycout) << "2->3 " << flush;
volelements.Elem(eli1) = el31;
volelements.Elem(eli2) = el32;
volelements.Append (el33);
original.Clear (eli1);
original.Clear (eli2);
}
}
}
(*mycout) << endl;
if (goal == OPT_QUALITY)
{
bad1 = CalcTotalBad (points, volelements);
(*testout) << "Total badness = " << bad1 << endl;
}
// FindOpenElements ();
(*testout) << "swapimprove2 done" << "\n";
}
*/
}
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