mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-26 05:50:32 +05:00
Merge branch 'parallel_combineimprove2' into 'master'
Parallel 2d CombineImprove() See merge request jschoeberl/netgen!276
This commit is contained in:
Joachim Schöberl
commit
4f5164c73e
@ -354,28 +354,225 @@ namespace netgen
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
void MeshOptimize2d :: CombineImprove (Mesh & mesh)
|
||||
double CombineImproveEdge( Mesh & mesh,
|
||||
const Table<SurfaceElementIndex, PointIndex> & elementsonnode,
|
||||
Array<Vec<3>, PointIndex> & normals,
|
||||
Array<bool, PointIndex> & fixed,
|
||||
PointIndex pi1, PointIndex pi2,
|
||||
bool check_only = true)
|
||||
{
|
||||
if (!faceindex)
|
||||
Vec<3> nv;
|
||||
ArrayMem<SurfaceElementIndex, 20> hasonepi, hasbothpi;
|
||||
|
||||
if (!pi1.IsValid() || !pi2.IsValid())
|
||||
return 0.0;
|
||||
|
||||
bool debugflag = 0;
|
||||
|
||||
if (debugflag)
|
||||
{
|
||||
SplitImprove(mesh);
|
||||
PrintMessage (3, "Combine improve");
|
||||
|
||||
for (faceindex = 1; faceindex <= mesh.GetNFD(); faceindex++)
|
||||
{
|
||||
CombineImprove (mesh);
|
||||
|
||||
if (multithread.terminate)
|
||||
throw NgException ("Meshing stopped");
|
||||
}
|
||||
faceindex = 0;
|
||||
return;
|
||||
(*testout) << "Combineimprove "
|
||||
<< "pi1 = " << pi1 << " pi2 = " << pi2 << endl;
|
||||
}
|
||||
|
||||
/*
|
||||
// save version:
|
||||
if (fixed.Get(pi1) || fixed.Get(pi2))
|
||||
return 0.0;
|
||||
if (pi2 < pi1) swap (pi1, pi2);
|
||||
*/
|
||||
|
||||
// more general
|
||||
if (fixed[pi2])
|
||||
Swap (pi1, pi2);
|
||||
|
||||
if (fixed[pi2])
|
||||
return 0.0;
|
||||
|
||||
double loch = mesh.GetH (mesh[pi1]);
|
||||
|
||||
for (SurfaceElementIndex sei2 : elementsonnode[pi1])
|
||||
{
|
||||
const Element2d & el2 = mesh[sei2];
|
||||
|
||||
if (el2.IsDeleted()) continue;
|
||||
|
||||
if (el2[0] == pi2 || el2[1] == pi2 || el2[2] == pi2)
|
||||
{
|
||||
hasbothpi.Append (sei2);
|
||||
nv = Cross (Vec3d (mesh[el2[0]], mesh[el2[1]]),
|
||||
Vec3d (mesh[el2[0]], mesh[el2[2]]));
|
||||
}
|
||||
else
|
||||
{
|
||||
hasonepi.Append (sei2);
|
||||
}
|
||||
}
|
||||
|
||||
if(hasbothpi.Size()==0)
|
||||
return 0.0;
|
||||
|
||||
|
||||
nv = normals[pi1];
|
||||
|
||||
|
||||
for (SurfaceElementIndex sei2 : elementsonnode[pi2])
|
||||
{
|
||||
const Element2d & el2 = mesh[sei2];
|
||||
if (el2.IsDeleted()) continue;
|
||||
if (!el2.PNums<3>().Contains (pi1))
|
||||
hasonepi.Append (sei2);
|
||||
}
|
||||
|
||||
double bad1 = 0;
|
||||
int illegal1 = 0, illegal2 = 0;
|
||||
/*
|
||||
for (SurfaceElementIndex sei : hasonepi)
|
||||
{
|
||||
const Element2d & el = mesh[sei];
|
||||
bad1 += CalcTriangleBadness (mesh[el[0]], mesh[el[1]], mesh[el[2]],
|
||||
nv, -1, loch);
|
||||
illegal1 += 1-mesh.LegalTrig(el);
|
||||
}
|
||||
*/
|
||||
for (const Element2d & el : mesh.SurfaceElements()[hasonepi])
|
||||
{
|
||||
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++)
|
||||
{
|
||||
const 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());
|
||||
|
||||
double bad2 = 0;
|
||||
for (int k = 0; k < hasonepi.Size(); k++)
|
||||
{
|
||||
Element2d el = mesh[hasonepi[k]];
|
||||
for (auto i : Range(3))
|
||||
if(el[i]==pi2)
|
||||
el[i] = pi1;
|
||||
|
||||
double err =
|
||||
CalcTriangleBadness (mesh[el[0]], mesh[el[1]], mesh[el[2]],
|
||||
nv, -1, loch);
|
||||
bad2 += err;
|
||||
|
||||
Vec<3> hnv = Cross (Vec3d (mesh[el[0]],
|
||||
mesh[el[1]]),
|
||||
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();
|
||||
|
||||
if (debugflag)
|
||||
{
|
||||
(*testout) << "bad1 = " << bad1 << ", bad2 = " << bad2 << endl;
|
||||
}
|
||||
|
||||
bool should = (illegal2<=illegal1 && bad2 < bad1 && bad2 < 1e4);
|
||||
if(illegal2 < illegal1)
|
||||
{
|
||||
should = true;
|
||||
bad1 += 1e4;
|
||||
}
|
||||
|
||||
double d_badness = should * (bad2-bad1);
|
||||
|
||||
if(check_only)
|
||||
return d_badness;
|
||||
|
||||
if (should)
|
||||
{
|
||||
/*
|
||||
(*testout) << "combine !" << endl;
|
||||
(*testout) << "bad1 = " << bad1 << ", bad2 = " << bad2 << endl;
|
||||
(*testout) << "illegal1 = " << illegal1 << ", illegal2 = " << illegal2 << endl;
|
||||
(*testout) << "loch = " << loch << endl;
|
||||
*/
|
||||
|
||||
PointGeomInfo gi;
|
||||
// bool gi_set(false);
|
||||
|
||||
/*
|
||||
Element2d *el1p(NULL);
|
||||
int l = 0;
|
||||
while(mesh[elementsonnode[pi1][l]].IsDeleted() && l<elementsonnode[pi1].Size()) l++;
|
||||
if(l<elementsonnode[pi1].Size())
|
||||
el1p = &mesh[elementsonnode[pi1][l]];
|
||||
else
|
||||
cerr << "OOPS!" << endl;
|
||||
|
||||
for (l = 0; l < el1p->GetNP(); l++)
|
||||
if ((*el1p)[l] == pi1)
|
||||
{
|
||||
gi = el1p->GeomInfoPi (l+1);
|
||||
// gi_set = true;
|
||||
}
|
||||
*/
|
||||
for (SurfaceElementIndex sei : elementsonnode[pi1])
|
||||
{
|
||||
const Element2d & el1p = mesh[sei];
|
||||
if (el1p.IsDeleted()) continue;
|
||||
|
||||
for (int l = 0; l < el1p.GetNP(); l++)
|
||||
if (el1p[l] == pi1)
|
||||
// gi = el1p.GeomInfoPi (l+1);
|
||||
gi = el1p.GeomInfo()[l];
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
// (*testout) << "Connect point " << pi2 << " to " << pi1 << "\n";
|
||||
// for (int k = 0; k < elementsonnode[pi2].Size(); k++)
|
||||
for (SurfaceElementIndex sei2 : elementsonnode[pi2])
|
||||
{
|
||||
Element2d & el = mesh[sei2];
|
||||
if (el.IsDeleted()) continue;
|
||||
if (el.PNums().Contains(pi1)) continue;
|
||||
|
||||
for (auto l : Range(el.GetNP()))
|
||||
{
|
||||
if (el[l] == pi2)
|
||||
{
|
||||
el[l] = pi1;
|
||||
el.GeomInfo()[l] = gi;
|
||||
}
|
||||
|
||||
fixed[el[l]] = true;
|
||||
}
|
||||
}
|
||||
|
||||
for (auto sei : hasbothpi)
|
||||
mesh[sei].Delete();
|
||||
|
||||
}
|
||||
return d_badness;
|
||||
}
|
||||
|
||||
void MeshOptimize2d :: CombineImprove (Mesh & mesh)
|
||||
{
|
||||
SplitImprove(mesh);
|
||||
PrintMessage (3, "Combine improve");
|
||||
|
||||
if (multithread.terminate)
|
||||
throw NgException ("Meshing stopped");
|
||||
|
||||
static Timer timer ("Combineimprove 2D");
|
||||
RegionTimer reg (timer);
|
||||
@ -389,334 +586,96 @@ namespace netgen
|
||||
|
||||
|
||||
Array<SurfaceElementIndex> seia;
|
||||
mesh.GetSurfaceElementsOfFace (faceindex, seia);
|
||||
|
||||
if(faceindex)
|
||||
mesh.GetSurfaceElementsOfFace (faceindex, seia);
|
||||
else
|
||||
{
|
||||
seia.SetSize(mesh.GetNSE());
|
||||
ParallelFor( IntRange(mesh.GetNSE()), [&seia] (auto i) NETGEN_LAMBDA_INLINE
|
||||
{ seia[i] = i; });
|
||||
}
|
||||
|
||||
for (SurfaceElementIndex sei : seia)
|
||||
if (mesh[sei].GetNP() != 3)
|
||||
return;
|
||||
bool mixed = false;
|
||||
ParallelFor( Range(seia), [&] (auto i) NETGEN_LAMBDA_INLINE
|
||||
{
|
||||
if (mesh[seia[i]].GetNP() != 3)
|
||||
mixed = true;
|
||||
});
|
||||
|
||||
|
||||
int surfnr = 0;
|
||||
if (faceindex)
|
||||
surfnr = mesh.GetFaceDescriptor (faceindex).SurfNr();
|
||||
|
||||
|
||||
Vec<3> nv;
|
||||
if(mixed)
|
||||
return;
|
||||
|
||||
int np = mesh.GetNP();
|
||||
|
||||
TABLE<SurfaceElementIndex,PointIndex::BASE> elementsonnode(np);
|
||||
Array<SurfaceElementIndex> hasonepi, hasbothpi;
|
||||
auto elementsonnode = mesh.CreatePoint2SurfaceElementTable(faceindex);
|
||||
|
||||
for (SurfaceElementIndex sei : seia)
|
||||
for (PointIndex pi : mesh[sei].PNums<3>())
|
||||
elementsonnode.Add (pi, sei);
|
||||
int ntasks = ngcore::TaskManager::GetMaxThreads();
|
||||
Array<std::tuple<PointIndex, PointIndex>> edges;
|
||||
|
||||
BuildEdgeList( mesh, elementsonnode, edges );
|
||||
|
||||
Array<bool,PointIndex> fixed(np);
|
||||
fixed = false;
|
||||
ParallelFor( fixed.Range(), [&fixed] (auto i) NETGEN_LAMBDA_INLINE
|
||||
{ fixed[i] = false; });
|
||||
|
||||
ParallelFor( edges.Range(), [&] (auto i) NETGEN_LAMBDA_INLINE
|
||||
{
|
||||
auto [pi0, pi1] = edges[i];
|
||||
if (mesh.IsSegment (pi0, pi1))
|
||||
{
|
||||
fixed[pi0] = true;
|
||||
fixed[pi1] = true;
|
||||
}
|
||||
});
|
||||
|
||||
timerstart1.Stop();
|
||||
|
||||
/*
|
||||
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 (SurfaceElementIndex sei : seia)
|
||||
{
|
||||
Element2d & sel = mesh[sei];
|
||||
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;
|
||||
*/
|
||||
for (PointIndex pi : mesh.LockedPoints())
|
||||
fixed[pi] = true;
|
||||
ParallelFor( mesh.LockedPoints().Range(), [&] (auto i) NETGEN_LAMBDA_INLINE
|
||||
{
|
||||
fixed[mesh.LockedPoints()[i]] = true;
|
||||
});
|
||||
|
||||
|
||||
Array<Vec<3>,PointIndex> normals(np);
|
||||
|
||||
// for (PointIndex pi = mesh.Points().Begin(); pi < mesh.Points().End(); pi++)
|
||||
for (PointIndex pi : mesh.Points().Range())
|
||||
{
|
||||
if (elementsonnode[pi].Size())
|
||||
{
|
||||
Element2d & hel = mesh[elementsonnode[pi][0]];
|
||||
for (int k = 0; k < 3; k++)
|
||||
if (hel[k] == pi)
|
||||
{
|
||||
GetNormalVector (surfnr, mesh[pi], hel.GeomInfoPi(k+1), normals[pi]);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
ParallelFor( mesh.Points().Range(), [&] (auto pi) NETGEN_LAMBDA_INLINE
|
||||
{
|
||||
if (elementsonnode[pi].Size())
|
||||
{
|
||||
Element2d & hel = mesh[elementsonnode[pi][0]];
|
||||
for (int k = 0; k < 3; k++)
|
||||
if (hel[k] == pi)
|
||||
{
|
||||
const int faceindex = hel.GetIndex();
|
||||
const int surfnr = mesh.GetFaceDescriptor (faceindex).SurfNr();
|
||||
GetNormalVector (surfnr, mesh[pi], hel.GeomInfoPi(k+1), normals[pi]);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}, TasksPerThread(4));
|
||||
|
||||
timerstart.Stop();
|
||||
|
||||
for (int i = 0; i < seia.Size(); i++)
|
||||
// Find edges with improvement
|
||||
Array<std::tuple<double, int>> candidate_edges(edges.Size());
|
||||
std::atomic<int> improvement_counter(0);
|
||||
|
||||
ParallelFor( Range(edges), [&] (auto i) NETGEN_LAMBDA_INLINE
|
||||
{
|
||||
SurfaceElementIndex sei = seia[i];
|
||||
Element2d & elem = mesh[sei];
|
||||
auto [pi1, pi2] = edges[i];
|
||||
double d_badness = CombineImproveEdge(mesh, elementsonnode, normals, fixed, pi1, pi2, true);
|
||||
if(d_badness < 0.0)
|
||||
candidate_edges[improvement_counter++] = make_tuple(d_badness, i);
|
||||
}, TasksPerThread(4));
|
||||
|
||||
for (int j = 0; j < 3; j++)
|
||||
{
|
||||
if (elem.IsDeleted()) continue;
|
||||
PointIndex pi1 = elem[j];
|
||||
PointIndex pi2 = elem[(j+1) % 3];
|
||||
auto edges_with_improvement = candidate_edges.Part(0, improvement_counter.load());
|
||||
QuickSort(edges_with_improvement);
|
||||
|
||||
/*
|
||||
if (pi1 < PointIndex::BASE ||
|
||||
pi2 < PointIndex::BASE)
|
||||
continue;
|
||||
*/
|
||||
if (!pi1.IsValid() || !pi2.IsValid())
|
||||
continue;
|
||||
/*
|
||||
INDEX_2 i2(pi1, pi2);
|
||||
i2.Sort();
|
||||
if (segmentht.Used(i2))
|
||||
continue;
|
||||
*/
|
||||
|
||||
bool debugflag = 0;
|
||||
|
||||
if (debugflag)
|
||||
{
|
||||
(*testout) << "Combineimprove, face = " << faceindex
|
||||
<< "pi1 = " << pi1 << " pi2 = " << pi2 << endl;
|
||||
}
|
||||
|
||||
/*
|
||||
// save version:
|
||||
if (fixed.Get(pi1) || fixed.Get(pi2))
|
||||
continue;
|
||||
if (pi2 < pi1) swap (pi1, pi2);
|
||||
*/
|
||||
|
||||
// more general
|
||||
if (fixed[pi2])
|
||||
Swap (pi1, pi2);
|
||||
|
||||
if (fixed[pi2])
|
||||
continue;
|
||||
|
||||
double loch = mesh.GetH (mesh[pi1]);
|
||||
|
||||
// INDEX_2 si2 (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++)
|
||||
for (SurfaceElementIndex sei2 : elementsonnode[pi1])
|
||||
{
|
||||
const Element2d & el2 = mesh[sei2];
|
||||
|
||||
if (el2.IsDeleted()) continue;
|
||||
|
||||
if (el2[0] == pi2 || el2[1] == pi2 || el2[2] == pi2)
|
||||
{
|
||||
hasbothpi.Append (sei2);
|
||||
nv = Cross (Vec3d (mesh[el2[0]], mesh[el2[1]]),
|
||||
Vec3d (mesh[el2[0]], mesh[el2[2]]));
|
||||
}
|
||||
else
|
||||
{
|
||||
hasonepi.Append (sei2);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Element2d & hel = mesh[hasbothpi[0]];
|
||||
for (int k = 0; k < 3; k++)
|
||||
if (hel[k] == pi1)
|
||||
{
|
||||
GetNormalVector (surfnr, mesh[pi1], hel.GeomInfoPi(k+1), nv);
|
||||
break;
|
||||
}
|
||||
|
||||
// nv = normals.Get(pi1);
|
||||
|
||||
|
||||
for (SurfaceElementIndex sei2 : elementsonnode[pi2])
|
||||
{
|
||||
const Element2d & el2 = mesh[sei2];
|
||||
if (el2.IsDeleted()) continue;
|
||||
if (!el2.PNums<3>().Contains (pi1))
|
||||
hasonepi.Append (sei2);
|
||||
}
|
||||
|
||||
double bad1 = 0;
|
||||
int illegal1 = 0, illegal2 = 0;
|
||||
/*
|
||||
for (SurfaceElementIndex sei : hasonepi)
|
||||
{
|
||||
const Element2d & el = mesh[sei];
|
||||
bad1 += CalcTriangleBadness (mesh[el[0]], mesh[el[1]], mesh[el[2]],
|
||||
nv, -1, loch);
|
||||
illegal1 += 1-mesh.LegalTrig(el);
|
||||
}
|
||||
*/
|
||||
for (const Element2d & el : mesh.SurfaceElements()[hasonepi])
|
||||
{
|
||||
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++)
|
||||
{
|
||||
const 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 = p1;
|
||||
mesh[pi1] = pnew;
|
||||
mesh[pi2] = pnew;
|
||||
|
||||
double 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 = Cross (Vec3d (mesh[el[0]],
|
||||
mesh[el[1]]),
|
||||
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;
|
||||
|
||||
Element2d el1 = el;
|
||||
for (auto i : Range(3))
|
||||
if(el1[i]==pi2)
|
||||
el1[i] = pi1;
|
||||
illegal2 += 1-mesh.LegalTrig(el1);
|
||||
}
|
||||
bad2 /= hasonepi.Size();
|
||||
|
||||
mesh[pi1] = p1;
|
||||
mesh[pi2] = p2;
|
||||
|
||||
if (debugflag)
|
||||
{
|
||||
(*testout) << "bad1 = " << bad1 << ", bad2 = " << bad2 << endl;
|
||||
}
|
||||
|
||||
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;
|
||||
// bool gi_set(false);
|
||||
|
||||
/*
|
||||
Element2d *el1p(NULL);
|
||||
int l = 0;
|
||||
while(mesh[elementsonnode[pi1][l]].IsDeleted() && l<elementsonnode[pi1].Size()) l++;
|
||||
if(l<elementsonnode[pi1].Size())
|
||||
el1p = &mesh[elementsonnode[pi1][l]];
|
||||
else
|
||||
cerr << "OOPS!" << endl;
|
||||
|
||||
for (l = 0; l < el1p->GetNP(); l++)
|
||||
if ((*el1p)[l] == pi1)
|
||||
{
|
||||
gi = el1p->GeomInfoPi (l+1);
|
||||
// gi_set = true;
|
||||
}
|
||||
*/
|
||||
for (SurfaceElementIndex sei : elementsonnode[pi1])
|
||||
{
|
||||
const Element2d & el1p = mesh[sei];
|
||||
if (el1p.IsDeleted()) continue;
|
||||
|
||||
for (int l = 0; l < el1p.GetNP(); l++)
|
||||
if (el1p[l] == pi1)
|
||||
// gi = el1p.GeomInfoPi (l+1);
|
||||
gi = el1p.GeomInfo()[l];
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
|
||||
// (*testout) << "Connect point " << pi2 << " to " << pi1 << "\n";
|
||||
// for (int k = 0; k < elementsonnode[pi2].Size(); k++)
|
||||
for (SurfaceElementIndex sei2 : elementsonnode[pi2])
|
||||
{
|
||||
Element2d & el = mesh[sei2];
|
||||
if (el.IsDeleted()) continue;
|
||||
if (el.PNums().Contains(pi1)) continue;
|
||||
|
||||
elementsonnode.Add (pi1, sei2);
|
||||
|
||||
for (auto l : Range(el.GetNP()))
|
||||
{
|
||||
if (el[l] == pi2)
|
||||
{
|
||||
el[l] = pi1;
|
||||
el.GeomInfo()[l] = gi;
|
||||
}
|
||||
|
||||
fixed[el[l]] = true;
|
||||
}
|
||||
}
|
||||
|
||||
for (auto sei : hasbothpi)
|
||||
mesh[sei].Delete();
|
||||
}
|
||||
}
|
||||
for(auto [d_badness, ei] : edges_with_improvement)
|
||||
{
|
||||
auto [pi1, pi2] = edges[ei];
|
||||
CombineImproveEdge(mesh, elementsonnode, normals, fixed, pi1, pi2, false);
|
||||
}
|
||||
|
||||
// mesh.Compress();
|
||||
|
||||
@ -1,6 +1,61 @@
|
||||
#ifndef FILE_IMPROVE2
|
||||
#define FILE_IMPROVE2
|
||||
|
||||
template<typename TINDEX>
|
||||
void BuildEdgeList( const Mesh & mesh, const Table<TINDEX, PointIndex> & elementsonnode, Array<std::tuple<PointIndex, PointIndex>> & edges )
|
||||
{
|
||||
static Timer tbuild_edges("Build edges"); RegionTimer reg(tbuild_edges);
|
||||
|
||||
static constexpr int tetedges[6][2] =
|
||||
{ { 0, 1 }, { 0, 2 }, { 0, 3 },
|
||||
{ 1, 2 }, { 1, 3 }, { 2, 3 } };
|
||||
|
||||
int ntasks = 2*ngcore::TaskManager::GetMaxThreads();
|
||||
Array<Array<std::tuple<PointIndex,PointIndex>>> task_edges(ntasks);
|
||||
|
||||
ParallelFor(IntRange(ntasks), [&] (int ti)
|
||||
{
|
||||
auto myrange = mesh.Points().Range().Split(ti, ntasks);
|
||||
ArrayMem<std::tuple<PointIndex,PointIndex>, 100> local_edges;
|
||||
for (auto pi : myrange)
|
||||
{
|
||||
local_edges.SetSize(0);
|
||||
|
||||
for(auto ei : elementsonnode[pi])
|
||||
{
|
||||
const auto & elem = mesh[ei];
|
||||
if (elem.IsDeleted()) continue;
|
||||
|
||||
for (int j = 0; j < 6; j++)
|
||||
{
|
||||
PointIndex pi0 = elem[tetedges[j][0]];
|
||||
PointIndex pi1 = elem[tetedges[j][1]];
|
||||
if (pi1 < pi0) Swap(pi0, pi1);
|
||||
if(pi0==pi)
|
||||
local_edges.Append(std::make_tuple(pi0, pi1));
|
||||
}
|
||||
}
|
||||
QuickSort(local_edges);
|
||||
|
||||
auto edge_prev = std::make_tuple<PointIndex, PointIndex>(-1,-1);
|
||||
|
||||
for(auto edge : local_edges)
|
||||
if(edge != edge_prev)
|
||||
{
|
||||
task_edges[ti].Append(edge);
|
||||
edge_prev = edge;
|
||||
}
|
||||
}
|
||||
}, ntasks);
|
||||
|
||||
int num_edges = 0;
|
||||
for (auto & edg : task_edges)
|
||||
num_edges += edg.Size();
|
||||
edges.SetAllocSize(num_edges);
|
||||
for (auto & edg : task_edges)
|
||||
edges.Append(edg);
|
||||
}
|
||||
|
||||
|
||||
class Neighbour
|
||||
{
|
||||
|
||||
@ -409,60 +409,6 @@ void MeshOptimize3d :: CombineImproveSequential (Mesh & mesh,
|
||||
multithread.task = savetask;
|
||||
}
|
||||
|
||||
void MeshOptimize3d :: BuildEdgeList( const Mesh & mesh, const Table<ElementIndex, PointIndex> & elementsonnode, Array<std::tuple<PointIndex, PointIndex>> & edges )
|
||||
{
|
||||
static Timer tbuild_edges("Build edges"); RegionTimer reg(tbuild_edges);
|
||||
|
||||
static constexpr int tetedges[6][2] =
|
||||
{ { 0, 1 }, { 0, 2 }, { 0, 3 },
|
||||
{ 1, 2 }, { 1, 3 }, { 2, 3 } };
|
||||
|
||||
int ntasks = 2*ngcore::TaskManager::GetMaxThreads();
|
||||
Array<Array<std::tuple<PointIndex,PointIndex>>> task_edges(ntasks);
|
||||
|
||||
ParallelFor(IntRange(ntasks), [&] (int ti)
|
||||
{
|
||||
auto myrange = mesh.Points().Range().Split(ti, ntasks);
|
||||
ArrayMem<std::tuple<PointIndex,PointIndex>, 100> local_edges;
|
||||
for (auto pi : myrange)
|
||||
{
|
||||
local_edges.SetSize(0);
|
||||
|
||||
for(auto ei : elementsonnode[pi])
|
||||
{
|
||||
const Element & elem = mesh[ei];
|
||||
if (elem.IsDeleted()) continue;
|
||||
|
||||
for (int j = 0; j < 6; j++)
|
||||
{
|
||||
PointIndex pi0 = elem[tetedges[j][0]];
|
||||
PointIndex pi1 = elem[tetedges[j][1]];
|
||||
if (pi1 < pi0) Swap(pi0, pi1);
|
||||
if(pi0==pi)
|
||||
local_edges.Append(std::make_tuple(pi0, pi1));
|
||||
}
|
||||
}
|
||||
QuickSort(local_edges);
|
||||
|
||||
auto edge_prev = std::make_tuple<PointIndex, PointIndex>(-1,-1);
|
||||
|
||||
for(auto edge : local_edges)
|
||||
if(edge != edge_prev)
|
||||
{
|
||||
task_edges[ti].Append(edge);
|
||||
edge_prev = edge;
|
||||
}
|
||||
}
|
||||
}, ntasks);
|
||||
|
||||
int num_edges = 0;
|
||||
for (auto & edg : task_edges)
|
||||
num_edges += edg.Size();
|
||||
edges.SetAllocSize(num_edges);
|
||||
for (auto & edg : task_edges)
|
||||
edges.Append(edg);
|
||||
}
|
||||
|
||||
void MeshOptimize3d :: CombineImprove (Mesh & mesh,
|
||||
OPTIMIZEGOAL goal)
|
||||
{
|
||||
|
||||
@ -12,8 +12,6 @@ class MeshOptimize3d
|
||||
{
|
||||
const MeshingParameters & mp;
|
||||
|
||||
void BuildEdgeList( const Mesh & mesh, const Table<ElementIndex, PointIndex> & elementsonnode, Array<std::tuple<PointIndex, PointIndex>> & edges );
|
||||
|
||||
public:
|
||||
MeshOptimize3d (const MeshingParameters & amp) : mp(amp) { ; }
|
||||
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@ -58,6 +58,8 @@ def getMeshingparameters(filename):
|
||||
return standard[:3] # this gets too big for finer meshsizes
|
||||
if filename == "screw.step":
|
||||
return standard[3:] # coarser meshes don't work here
|
||||
if filename == "cylsphere.geo":
|
||||
return standard[0:2] + standard[3:] # coarse gives inconsistent reults (other mesh on MacOS)
|
||||
if filename == "part1.stl":
|
||||
return standard[0:1] + standard[2:] # very coarse does not work
|
||||
return standard
|
||||
|
||||
Loading…
Reference in New Issue
Block a user