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add prisms for between closesurface identifications explicitly (no attached faces/edges needed as in prism mesh rules)

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not active yet (still buggy for CSG)
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mhochsteger@cerbsim.com 2021-12-14 12:50:40 +01:00
parent 44471fe649
commit de813df0c2
1 changed files with 54 additions and 0 deletions
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54
libsrc/meshing/meshfunc.cpp
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@ -166,6 +166,58 @@ namespace netgen
return ret;
}
// Add between identified surface elements (only consider closesurface identifications)
void FillCloseSurface( MeshingData & md)
{
static Timer timer("FillCloseSurface"); RegionTimer rtimer(timer);
auto & mesh = md.mesh;
auto & identifications = mesh->GetIdentifications();
auto nmax = identifications.GetMaxNr();
bool have_closesurfaces = false;
for(auto i : Range(1,nmax+1))
if(identifications.GetType(i) == Identifications::CLOSESURFACES)
have_closesurfaces = true;
if(!have_closesurfaces)
return;
NgArray<int, PointIndex::BASE> map;
for(auto identnr : Range(1,nmax+1))
{
if(identifications.GetType(identnr) != Identifications::CLOSESURFACES)
continue;
identifications.GetMap(identnr, map);
for(auto & sel : mesh->SurfaceElements())
{
bool is_mapped = true;
for(auto pi : sel.PNums())
if(!PointIndex(map[pi]).IsValid())
is_mapped = false;
if(!is_mapped)
continue;
// in case we have symmetric mapping (used in csg), only map in one direction
if(map[map[sel[0]]] == sel[0] && map[sel[0]] < sel[0])
continue;
// insert prism
auto np = sel.GetNP();
Element el(2*np);
for(auto i : Range(np))
{
el[i] = sel[i];
el[i+np] = map[sel[i]];
}
el.SetIndex(md.domain);
mesh->AddVolumeElement(el);
}
}
}
void CloseOpenQuads( MeshingData & md)
{
auto & mesh = *md.mesh;
@ -488,6 +540,8 @@ namespace netgen
if (md[i].mesh->CheckOverlappingBoundary())
throw NgException ("Stop meshing since boundary mesh is overlapping");
// TODO: FillCloseSurface is still not working with CSG closesurfaces
// FillCloseSurface( md[i] );
CloseOpenQuads( md[i] );
MeshDomain(md[i]);
});