//C++ TO C# CONVERTER WARNING: The original C++ declaration of the following method implementation was not found:
public int GetLocals(int fstind, Array <Point3d, PointIndex.BASE> locpoints, Array <MiniElement2d> locfaces, Array <PointIndex, PointIndex.BASE> pindex, Array <int> findex, INDEX_2_HASHTABLE <int> getconnectedpairs, float xh, float relh, ref int facesplit)
{
// static int timer = NgProfiler::CreateTimer ("AdFront3::GetLocals");
// NgProfiler::RegionTimer reg (timer);
if (hashon && faces.Size() < 500)
{
hashon = 0;
}
if (hashon && !hashcreated)
{
hashtable.Create();
hashcreated = 1;
}
int i;
int j;
PointIndex pstind = new PointIndex();
Point3d midp = new Point3d();
Point3d p0 = new Point3d();
// static Array<int, PointIndex::BASE> invpindex;
Array <MiniElement2d> locfaces2 = new Array <MiniElement2d>(); //all local faces in radius xh
Array <int> locfaces3 = new Array <int>(); // all faces in outer radius relh
Array <int> findex2 = new Array <int>();
locfaces2.SetSize(0);
locfaces3.SetSize(0);
findex2.SetSize(0);
int cluster = faces.Get(fstind).cluster;
pstind = faces.Get(fstind).Face().PNum(1);
p0 = points[pstind].P();
locfaces2.Append(faces.Get(fstind).Face());
findex2.Append(fstind);
Box3d b1 = new Box3d(p0 - new Vec3d(xh, xh, xh), p0 + new Vec3d(xh, xh, xh));
if (hashon)
{
hashtable.GetLocals(locfaces2, findex2, fstind, p0, xh);
}
else
{
for (i = 1; i <= faces.Size(); i++)
{
MiniElement2d face = faces.Get(i).Face();
if (faces.Get(i).cluster == cluster && faces.Get(i).Valid() && i != fstind)
{
Box3d b2 = new Box3d();
b2.SetPoint(points[face[0]].P());
b2.AddPoint(points[face[1]].P());
b2.AddPoint(points[face[2]].P());
if (b1.Intersect(b2) != 0)
{
locfaces2.Append(faces.Get(i).Face());
findex2.Append(i);
}
}
}
}
//local faces for inner radius:
for (i = 1; i <= locfaces2.Size(); i++)
{
MiniElement2d face = locfaces2.Get(i);
Point3d p1 = points[face[0]].P();
Point3d p2 = points[face[1]].P();
Point3d p3 = points[face[2]].P();
midp = Center(p1, p2, p3);
if (Dist2(midp, p0) <= relh * relh || i == 1)
{
locfaces.Append(locfaces2.Get(i));
findex.Append(findex2.Get(i));
}
else
{
locfaces3.Append(i);
}
}
facesplit = locfaces.Size();
//local faces for outer radius:
for (i = 1; i <= locfaces3.Size(); i++)
{
locfaces.Append(locfaces2.Get(locfaces3.Get(i)));
findex.Append(findex2.Get(locfaces3.Get(i)));
}
invpindex.SetSize(points.Size());
for (i = 1; i <= locfaces.Size(); i++)
{
for (j = 1; j <= locfaces.Get(i).GetNP(); j++)
{
PointIndex pi = locfaces.Get(i).PNum(j);
invpindex[pi] = -1;
}
}
for (i = 1; i <= locfaces.Size(); i++)
{
for (j = 1; j <= locfaces.Get(i).GetNP(); j++)
{
PointIndex pi = locfaces.Get(i).PNum(j);
if (invpindex[pi] == -1)
{
pindex.Append(pi);
locpoints.Append(points[pi].P());
invpindex[pi] = pindex.Size() - 1 + PointIndex.BASE;
}
// locfaces.Elem(i).PNum(j) = locpoints.Append (points[pi].P());
// }
// else
locfaces.Elem(i).PNum(j) = invpindex[pi];
}
}
if (connectedpairs)
{
for (i = 1; i <= locpoints.Size(); i++)
{
int pind = pindex.Get(i);
if (pind >= 1 && pind <= connectedpairs.Size())
{
for (j = 1; j <= connectedpairs.EntrySize(pind); j++)
{
int oi = connectedpairs.Get(pind, j);
int other = invpindex.Get(oi);
if (other >= 1 && other <= pindex.Size() && pindex.Get(other) == oi)
{
// INDEX_2 coned(i, other);
// coned.Sort();
// (*testout) << "connected: " << locpoints.Get(i) << "-" << locpoints.Get(other) << endl;
getconnectedpairs.Set(INDEX_2.Sort(i, other), 1);
}
}
}
}
}
/*
* // add isolated points
* for (i = 1; i <= points.Size(); i++)
* if (points.Elem(i).Valid() && Dist (points.Elem(i).P(), p0) <= xh)
* {
* if (!invpindex.Get(i))
* {
* locpoints.Append (points.Get(i).P());
* pindex.Append (i);
* invpindex.Elem(i) = pindex.Size();
* }
* }
*/
return(faces.Get(fstind).QualClass());
}
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();
}
