//C++ TO C# CONVERTER WARNING: The original C++ declaration of the following method implementation was not found:
public void AddBoundaryElement(int i1, int i2, PointGeomInfo gi1, PointGeomInfo gi2)
{
// (*testout) << "add line " << i1 << " - " << i2 << endl;
if (gi1.trignum == 0 || gi2.trignum == 0)
{
PrintSysError("addboundaryelement: illegal geominfo");
}
adfront.AddLine(i1 - 1, i2 - 1, gi1, gi2);
}
public void SetGeomInfo(PointGeomInfo gi1, PointGeomInfo gi2)
{
geominfo[0] = gi1;
geominfo[1] = gi2;
}
public void EdgeSwapping(Mesh mesh, int usemetric)
{
if (!faceindex)
{
if (usemetric != 0)
{
PrintMessage(3, "Edgeswapping, metric");
}
else
{
PrintMessage(3, "Edgeswapping, topological");
}
for (faceindex = 1; faceindex <= mesh.GetNFD(); faceindex++)
{
EdgeSwapping(mesh, usemetric);
if (multithread.terminate)
{
throw new Exception("Meshing stopped");
}
}
faceindex = 0;
mesh.CalcSurfacesOfNode();
return;
}
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
// static int timer = NgProfiler::CreateTimer("EdgeSwapping 2D");
NgProfiler.RegionTimer reg1 = new NgProfiler.RegionTimer(EdgeSwapping_timer);
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
// static int timerstart = NgProfiler::CreateTimer("EdgeSwapping 2D start");
NgProfiler.StartTimer(EdgeSwapping_timerstart);
Array <SurfaceElementIndex> seia = new Array <SurfaceElementIndex>();
mesh.GetSurfaceElementsOfFace(faceindex, seia);
for (int i = 0; i < seia.Size(); i++)
{
if (mesh[seia[i]].GetNP() != 3)
{
GenericImprove(mesh);
return;
}
}
int surfnr = mesh.GetFaceDescriptor(faceindex).SurfNr();
Array <Neighbour> neighbors = new Array <Neighbour>(mesh.GetNSE());
INDEX_2_HASHTABLE <trionedge> other = new INDEX_2_HASHTABLE <trionedge>(seia.Size() + 2);
Array <char> swapped = new Array <char>(mesh.GetNSE());
Array <int, PointIndex.BASE> pdef = new Array <int, PointIndex.BASE>(mesh.GetNP());
Array <double, PointIndex.BASE> pangle = new Array <double, PointIndex.BASE>(mesh.GetNP());
// int e;
// double d;
// Vec3d nv1, nv2;
// double loch(-1);
double[] minangle = { 0, 1.481, 2.565, 3.627, 4.683, 5.736, 7, 9 };
for (int i = 0; i < seia.Size(); i++)
{
Element2d sel = mesh[seia[i]];
for (int j = 0; j < 3; j++)
{
pangle[sel[j]] = 0.0;
}
}
// pangle = 0;
for (int i = 0; i < seia.Size(); i++)
{
Element2d sel = mesh[seia[i]];
for (int j = 0; j < 3; j++)
{
POINTTYPE typ = mesh[sel[j]].Type();
if (typ == FIXEDPOINT || typ == EDGEPOINT)
{
pangle[sel[j]] += Angle(mesh[sel[(j + 1) % 3]] - mesh[sel[j]], mesh[sel[(j + 2) % 3]] - mesh[sel[j]]);
}
}
}
// for (PointIndex pi = PointIndex::BASE;
// pi < mesh.GetNP()+PointIndex::BASE; pi++)
// pdef = 0;
for (int i = 0; i < seia.Size(); i++)
{
Element2d sel = mesh[seia[i]];
for (int j = 0; j < 3; j++)
{
PointIndex pi = sel[j];
if (mesh[pi].Type() == INNERPOINT || mesh[pi].Type() == SURFACEPOINT)
{
pdef[pi] = -6;
}
else
{
for (int j = 0; j < 8; j++)
{
if (pangle[pi] >= minangle[j])
{
pdef[pi] = -1 - j;
}
}
}
}
}
for (int i = 0; i < seia.Size(); i++)
{
Element2d sel = mesh[seia[i]];
for (int j = 0; j < 3; j++)
{
pdef[sel[j]]++;
}
}
for (int i = 0; i < seia.Size(); i++)
{
for (int j = 0; j < 3; j++)
{
neighbors[seia[i]].SetNr(j, -1);
neighbors[seia[i]].SetOrientation(j, 0);
}
}
/*
* Array<Vec3d> normals(mesh.GetNP());
* for (i = 1; i <= mesh.GetNSE(); i++)
* {
* Element2d & hel = mesh.SurfaceElement(i);
* if (hel.GetIndex() == faceindex)
* for (k = 1; k <= 3; k++)
* {
* int pi = hel.PNum(k);
* SelectSurfaceOfPoint (mesh.Point(pi), hel.GeomInfoPi(k));
* int surfi = mesh.GetFaceDescriptor(faceindex).SurfNr();
* GetNormalVector (surfi, mesh.Point(pi), normals.Elem(pi));
* normals.Elem(pi) /= normals.Elem(pi).Length();
* }
* }
*/
for (int i = 0; i < seia.Size(); i++)
{
Element2d sel = mesh[seia[i]];
for (int j = 0; j < 3; j++)
{
PointIndex pi1 = sel.PNumMod(j + 2);
PointIndex pi2 = sel.PNumMod(j + 3);
// double loch = mesh.GetH(mesh[pi1]);
INDEX_2 edge = new INDEX_2(pi1, pi2);
edge.Sort();
if (mesh.IsSegment(pi1, pi2))
{
continue;
}
/*
* if (segments.Used (edge))
* continue;
*/
INDEX_2 ii2 = new INDEX_2(pi1, pi2);
if (other.Used(ii2))
{
// INDEX_2 i2s(ii2);
// i2s.Sort();
int i2 = other.Get(ii2).tnr;
int j2 = other.Get(ii2).sidenr;
neighbors[seia[i]].SetNr(j, i2);
neighbors[seia[i]].SetOrientation(j, j2);
neighbors[i2].SetNr(j2, seia[i]);
neighbors[i2].SetOrientation(j2, j);
}
else
{
other.Set(new INDEX_2(pi2, pi1), new trionedge(seia[i], j));
}
}
}
for (int i = 0; i < seia.Size(); i++)
{
swapped[seia[i]] = 0;
}
NgProfiler.StopTimer(EdgeSwapping_timerstart);
int t = 4;
int done = 0;
while (done == 0 && t >= 2)
{
for (int i = 0; i < seia.Size(); i++)
{
SurfaceElementIndex t1 = seia[i];
if (mesh[t1].IsDeleted())
{
continue;
}
if (mesh[t1].GetIndex() != faceindex)
{
continue;
}
if (multithread.terminate)
{
throw new Exception("Meshing stopped");
}
for (int o1 = 0; o1 < 3; o1++)
{
bool should;
SurfaceElementIndex t2 = neighbors[t1].GetNr(o1);
int o2 = neighbors[t1].GetOrientation(o1);
if (t2 == -1)
{
continue;
}
if (swapped[t1] || swapped[t2])
{
continue;
}
PointIndex pi1 = mesh[t1].PNumMod(o1 + 1 + 1);
PointIndex pi2 = mesh[t1].PNumMod(o1 + 1 + 2);
PointIndex pi3 = mesh[t1].PNumMod(o1 + 1);
PointIndex pi4 = mesh[t2].PNumMod(o2 + 1);
PointGeomInfo gi1 = mesh[t1].GeomInfoPiMod(o1 + 1 + 1);
PointGeomInfo gi2 = mesh[t1].GeomInfoPiMod(o1 + 1 + 2);
PointGeomInfo gi3 = mesh[t1].GeomInfoPiMod(o1 + 1);
PointGeomInfo gi4 = mesh[t2].GeomInfoPiMod(o2 + 1);
bool allowswap = true;
Vec <3> auxvec1 = mesh[pi3] - mesh[pi4];
Vec <3> auxvec2 = mesh[pi1] - mesh[pi4];
allowswap = allowswap && ngsimd.GlobalMembers.fabs(1.0 - (auxvec1 * auxvec2) / (auxvec1.Length() * auxvec2.Length())) > 1e-4;
if (!allowswap)
{
continue;
}
// normal of new
Vec <3> nv1 = netgen.GlobalMembers.Cross(auxvec1, auxvec2);
auxvec1 = new mesh.Point(pi4) - new mesh.Point(pi3);
auxvec2 = new mesh.Point(pi2) - new mesh.Point(pi3);
allowswap = allowswap && ngsimd.GlobalMembers.fabs(1.0 - (auxvec1 * auxvec2) / (auxvec1.Length() * auxvec2.Length())) > 1e-4;
if (!allowswap)
{
continue;
}
Vec <3> nv2 = netgen.GlobalMembers.Cross(auxvec1, auxvec2);
// normals of original
Vec <3> nv3 = netgen.GlobalMembers.Cross(mesh[pi1] - mesh[pi4], mesh[pi2] - mesh[pi4]);
Vec <3> nv4 = netgen.GlobalMembers.Cross(mesh[pi2] - mesh[pi3], mesh[pi1] - mesh[pi3]);
nv3 *= -1;
nv4 *= -1;
nv3.Normalize();
nv4.Normalize();
nv1.Normalize();
nv2.Normalize();
Vec <3> nvp3, nvp4;
SelectSurfaceOfPoint(new mesh.Point(pi3), gi3);
GetNormalVector(surfnr, new mesh.Point(pi3), gi3, nvp3);
nvp3.Normalize();
SelectSurfaceOfPoint(new mesh.Point(pi4), gi4);
GetNormalVector(surfnr, new mesh.Point(pi4), gi4, nvp4);
nvp4.Normalize();
double critval = ngsimd.GlobalMembers.cos(DefineConstants.M_PI / 6); // 30 degree
allowswap = allowswap && (nv1 * nvp3 > critval) && (nv1 * nvp4 > critval) && (nv2 * nvp3 > critval) && (nv2 * nvp4 > critval) && (nvp3 * nv3 > critval) && (nvp4 * nv4 > critval);
double horder = netgen.GlobalMembers.Dist(new mesh.Point(pi1), new mesh.Point(pi2));
if (nv1.Length() > 1e-3 * horder * horder && nv2.Length() > 1e-3 * horder * horder && allowswap)
{
if (usemetric == 0)
{
int e = pdef[pi1] + pdef[pi2] - pdef[pi3] - pdef[pi4];
double d = netgen.GlobalMembers.Dist2(new mesh.Point(pi1), new mesh.Point(pi2)) - netgen.GlobalMembers.Dist2(new mesh.Point(pi3), new mesh.Point(pi4));
should = e >= t && (e > 2 || d > 0);
}
else
{
double loch = mesh.GetH(mesh[pi1]);
should = CalcTriangleBadness(new mesh.Point(pi4), new mesh.Point(pi3), new mesh.Point(pi1), metricweight, loch) + CalcTriangleBadness(new mesh.Point(pi3), new mesh.Point(pi4), new mesh.Point(pi2), metricweight, loch) < CalcTriangleBadness(new mesh.Point(pi1), new mesh.Point(pi2), new mesh.Point(pi3), metricweight, loch) + CalcTriangleBadness(new mesh.Point(pi2), new mesh.Point(pi1), new mesh.Point(pi4), metricweight, loch);
}
if (allowswap)
{
Element2d sw1 = new Element2d(pi4, pi3, pi1);
Element2d sw2 = new Element2d(pi3, pi4, pi2);
int legal1 = mesh.LegalTrig(mesh.SurfaceElement(t1)) + mesh.LegalTrig(mesh.SurfaceElement(t2));
int legal2 = mesh.LegalTrig(sw1) + mesh.LegalTrig(sw2);
if (legal1 < legal2)
{
should = true;
}
if (legal2 < legal1)
{
should = false;
}
}
if (should)
{
// do swapping !
done = 1;
mesh[t1].PNum(1) = pi1;
mesh[t1].PNum(2) = pi4;
mesh[t1].PNum(3) = pi3;
mesh[t2].PNum(1) = pi2;
mesh[t2].PNum(2) = pi3;
mesh[t2].PNum(3) = pi4;
mesh[t1].GeomInfoPi(1) = gi1;
mesh[t1].GeomInfoPi(2) = gi4;
mesh[t1].GeomInfoPi(3) = gi3;
mesh[t2].GeomInfoPi(1) = gi2;
mesh[t2].GeomInfoPi(2) = gi3;
mesh[t2].GeomInfoPi(3) = gi4;
pdef[pi1]--;
pdef[pi2]--;
pdef[pi3]++;
pdef[pi4]++;
swapped[t1] = 1;
swapped[t2] = 1;
}
}
}
}
t--;
}
mesh.SetNextTimeStamp();
}
public void CombineImprove(Mesh mesh)
{
if (!faceindex)
{
PrintMessage(3, "Combine improve");
for (faceindex = 1; faceindex <= mesh.GetNFD(); faceindex++)
{
CombineImprove(mesh);
if (multithread.terminate)
{
throw new Exception("Meshing stopped");
}
}
faceindex = 0;
return;
}
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
// static int timer = NgProfiler::CreateTimer("Combineimprove 2D");
NgProfiler.RegionTimer reg = new NgProfiler.RegionTimer(CombineImprove_timer);
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
// static int timerstart = NgProfiler::CreateTimer("Combineimprove 2D start");
NgProfiler.StartTimer(CombineImprove_timerstart);
//C++ TO C# CONVERTER NOTE: This static local variable declaration (not allowed in C#) has been moved just prior to the method:
// static int timerstart1 = NgProfiler::CreateTimer("Combineimprove 2D start1");
NgProfiler.StartTimer(CombineImprove_timerstart1);
// int i, j, k, l;
// PointIndex pi;
// SurfaceElementIndex sei;
Array <SurfaceElementIndex> seia = new Array <SurfaceElementIndex>();
mesh.GetSurfaceElementsOfFace(faceindex, seia);
for (int i = 0; i < seia.Size(); i++)
{
if (mesh[seia[i]].GetNP() != 3)
{
return;
}
}
int surfnr = 0;
if (faceindex)
{
surfnr = mesh.GetFaceDescriptor(faceindex).SurfNr();
}
// PointIndex pi1, pi2;
// MeshPoint p1, p2, pnew;
double bad1;
double bad2;
Vec <3> nv;
int np = mesh.GetNP();
//int nse = mesh.GetNSE();
TABLE <SurfaceElementIndex, PointIndex.BASE> elementsonnode = new TABLE <SurfaceElementIndex, PointIndex.BASE>(np);
Array <SurfaceElementIndex> hasonepi = new Array <SurfaceElementIndex>();
Array <SurfaceElementIndex> hasbothpi = new Array <SurfaceElementIndex>();
for (int i = 0; i < seia.Size(); i++)
{
Element2d el = mesh[seia[i]];
for (int j = 0; j < el.GetNP(); j++)
{
elementsonnode.Add(el[j], seia[i]);
}
}
Array <bool, PointIndex.BASE> @fixed = new Array <bool, PointIndex.BASE>(np);
@fixed = false;
NgProfiler.StopTimer(CombineImprove_timerstart1);
/*
* for (SegmentIndex si = 0; si < mesh.GetNSeg(); si++)
* {
* INDEX_2 i2(mesh[si][0], mesh[si][1]);
* fixed[i2.I1()] = true;
* fixed[i2.I2()] = true;
* }
*/
for (int i = 0; i < seia.Size(); i++)
{
Element2d sel = mesh[seia[i]];
for (int j = 0; j < sel.GetNP(); j++)
{
PointIndex pi1 = sel.PNumMod(j + 2);
PointIndex pi2 = sel.PNumMod(j + 3);
if (mesh.IsSegment(pi1, pi2))
{
@fixed[pi1] = true;
@fixed[pi2] = true;
}
}
}
for (int i = 0; i < mesh.LockedPoints().Size(); i++)
{
@fixed[mesh.LockedPoints()[i]] = true;
}
Array <Vec <3>, PointIndex.BASE> normals = new Array <Vec <3>, PointIndex.BASE>(np);
for (PointIndex pi = mesh.Points().Begin(); pi < mesh.Points().End(); pi++)
{
if (elementsonnode[pi].Size())
{
Element2d hel = mesh[elementsonnode[pi][0]];
for (int k = 0; k < 3; k++)
{
if (hel[k] == pi)
{
SelectSurfaceOfPoint(mesh[pi], hel.GeomInfoPi(k + 1));
GetNormalVector(surfnr, mesh[pi], hel.GeomInfoPi(k + 1), normals[pi]);
break;
}
}
}
}
NgProfiler.StopTimer(CombineImprove_timerstart);
for (int i = 0; i < seia.Size(); i++)
{
SurfaceElementIndex sei = seia[i];
Element2d elem = mesh[sei];
if (elem.IsDeleted())
{
continue;
}
for (int j = 0; j < 3; j++)
{
PointIndex pi1 = elem[j];
PointIndex pi2 = elem[(j + 1) % 3];
if (pi1 < PointIndex.BASE || pi2 < PointIndex.BASE)
{
continue;
}
/*
* INDEX_2 i2(pi1, pi2);
* i2.Sort();
* if (segmentht.Used(i2))
* continue;
*/
bool debugflag = false;
if (debugflag)
{
(*testout) << "Combineimprove, face = " << faceindex << "pi1 = " << pi1 << " pi2 = " << pi2 << "\n";
}
/*
* // save version:
* if (fixed.Get(pi1) || fixed.Get(pi2))
* continue;
* if (pi2 < pi1) swap (pi1, pi2);
*/
// more general
if (@fixed[pi2])
{
netgen.GlobalMembers.Swap(ref pi1, ref pi2);
}
if (@fixed[pi2])
{
continue;
}
double loch = mesh.GetH(mesh[pi1]);
INDEX_2 si2 = new INDEX_2(pi1, pi2);
si2.Sort();
/*
* if (edgetested.Used (si2))
* continue;
* edgetested.Set (si2, 1);
*/
hasonepi.SetSize(0);
hasbothpi.SetSize(0);
for (int k = 0; k < elementsonnode[pi1].Size(); k++)
{
Element2d el2 = mesh[elementsonnode[pi1][k]];
if (el2.IsDeleted())
{
continue;
}
if (el2[0] == pi2 || el2[1] == pi2 || el2[2] == pi2)
{
hasbothpi.Append(elementsonnode[pi1][k]);
nv = netgen.GlobalMembers.Cross(new Vec3d(mesh[el2[0]], mesh[el2[1]]), new Vec3d(mesh[el2[0]], mesh[el2[2]]));
}
else
{
hasonepi.Append(elementsonnode[pi1][k]);
}
}
Element2d hel = mesh[hasbothpi[0]];
for (int k = 0; k < 3; k++)
{
if (hel[k] == pi1)
{
SelectSurfaceOfPoint(mesh[pi1], hel.GeomInfoPi(k + 1));
GetNormalVector(surfnr, mesh[pi1], hel.GeomInfoPi(k + 1), nv);
break;
}
}
// nv = normals.Get(pi1);
for (int k = 0; k < elementsonnode[pi2].Size(); k++)
{
Element2d el2 = mesh[elementsonnode[pi2][k]];
if (el2.IsDeleted())
{
continue;
}
if (el2[0] == pi1 || el2[1] == pi1 || el2[2] == pi1)
{
;
}
else
{
hasonepi.Append(elementsonnode[pi2][k]);
}
}
bad1 = 0;
int illegal1 = 0;
int illegal2 = 0;
for (int k = 0; k < hasonepi.Size(); k++)
{
Element2d el = mesh[hasonepi[k]];
bad1 += CalcTriangleBadness(mesh[el[0]], mesh[el[1]], mesh[el[2]], nv, -1, loch);
illegal1 += 1 - mesh.LegalTrig(el);
}
for (int k = 0; k < hasbothpi.Size(); k++)
{
Element2d el = mesh[hasbothpi[k]];
bad1 += CalcTriangleBadness(mesh[el[0]], mesh[el[1]], mesh[el[2]], nv, -1, loch);
illegal1 += 1 - mesh.LegalTrig(el);
}
bad1 /= (hasonepi.Size() + hasbothpi.Size());
MeshPoint p1 = mesh[pi1];
MeshPoint p2 = mesh[pi2];
MeshPoint pnew = new MeshPoint(p1);
mesh[pi1] = pnew;
mesh[pi2] = pnew;
bad2 = 0;
for (int k = 0; k < hasonepi.Size(); k++)
{
Element2d el = mesh[hasonepi[k]];
double err = CalcTriangleBadness(mesh[el[0]], mesh[el[1]], mesh[el[2]], nv, -1, loch);
bad2 += err;
Vec <3> hnv = netgen.GlobalMembers.Cross(new Vec3d(mesh[el[0]], mesh[el[1]]), new Vec3d(mesh[el[0]], mesh[el[2]]));
if (hnv * nv < 0)
{
bad2 += 1e10;
}
for (int l = 0; l < 3; l++)
{
if ((normals[el[l]] * nv) < 0.5)
{
bad2 += 1e10;
}
}
illegal2 += 1 - mesh.LegalTrig(el);
}
bad2 /= hasonepi.Size();
mesh[pi1] = p1;
mesh[pi2] = p2;
if (debugflag)
{
(*testout) << "bad1 = " << bad1 << ", bad2 = " << bad2 << "\n";
}
bool should = (bad2 < bad1 && bad2 < 1e4);
if (bad2 < 1e4)
{
if (illegal1 > illegal2)
{
should = true;
}
if (illegal2 > illegal1)
{
should = false;
}
}
if (should)
{
/*
* (*testout) << "combine !" << endl;
* (*testout) << "bad1 = " << bad1 << ", bad2 = " << bad2 << endl;
* (*testout) << "illegal1 = " << illegal1 << ", illegal2 = " << illegal2 << endl;
* (*testout) << "loch = " << loch << endl;
*/
mesh[pi1] = pnew;
PointGeomInfo gi = new PointGeomInfo();
// bool gi_set(false);
Element2d el1p = new Element2d(null);
int l = 0;
while (mesh[elementsonnode[pi1][l]].IsDeleted() && l < elementsonnode.EntrySize(pi1))
{
l++;
}
if (l < elementsonnode.EntrySize(pi1))
{
el1p = mesh[elementsonnode[pi1][l]];
}
else
{
cerr << "OOPS!" << "\n";
}
for (l = 0; l < el1p.GetNP(); l++)
{
if (el1p[l] == pi1)
{
gi = el1p.GeomInfoPi(l + 1);
// gi_set = true;
}
}
// (*testout) << "Connect point " << pi2 << " to " << pi1 << "\n";
for (int k = 0; k < elementsonnode[pi2].Size(); k++)
{
Element2d el = mesh[elementsonnode[pi2][k]];
if (el.IsDeleted())
{
continue;
}
elementsonnode.Add(pi1, elementsonnode[pi2][k]);
bool haspi1 = false;
for (l = 0; l < el.GetNP(); l++)
{
if (el[l] == pi1)
{
haspi1 = true;
}
}
if (haspi1)
{
continue;
}
for (int l = 0; l < el.GetNP(); l++)
{
if (el[l] == pi2)
{
el[l] = pi1;
el.GeomInfoPi(l + 1) = gi;
}
@fixed[el[l]] = true;
}
}
/*
* for (k = 0; k < hasbothpi.Size(); k++)
* {
* cout << mesh[hasbothpi[k]] << endl;
* for (l = 0; l < 3; l++)
* cout << mesh[mesh[hasbothpi[k]][l]] << " ";
* cout << endl;
* }
*/
for (int k = 0; k < hasbothpi.Size(); k++)
{
mesh[hasbothpi[k]].Delete();
/*
* for (l = 0; l < 4; l++)
* mesh[hasbothpi[k]][l] = PointIndex::BASE-1;
*/
}
}
}
}
// mesh.Compress();
mesh.SetNextTimeStamp();
}
