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parent faces also in 2D

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This commit is contained in:
Joachim Schoeberl 2023-08-20 21:54:09 +02:00
parent 06ae01b5a7
commit b053ddcd68
3 changed files with 73 additions and 19 deletions
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1
libsrc/interface/nginterface_v2.cpp
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@ -1149,6 +1149,7 @@ namespace netgen
void Ngx_Mesh :: EnableTable (string name, bool set)
{
mesh->GetTopology().EnableTable (name, set);
mesh->SetNextTimeStamp(); // update topology will do work
}

89
libsrc/meshing/topology.cpp
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@ -984,6 +984,38 @@ namespace netgen
}
}
}
for (SurfaceElementIndex sei = 0; sei < nse; sei++)
{
const Element2d & sel = (*mesh)[sei];
INT<3,PointIndex> f3 = { sel[0], sel[1], sel[2] };
for (int j = 0; j < 3; j++)
{
PointIndex v = f3[j];
if (v >= mesh->mlbetweennodes.Size()+PointIndex::BASE)
continue;
auto pa = mesh->mlbetweennodes[v];
for (int k = 0; k < 2; k++)
if (f3.Contains(pa[k]))
{
PointIndex v0 = pa[k]; // also in face
PointIndex v1 = pa[1-k];
PointIndex v2 = f3[0]+f3[1]+f3[2] - v - v0;
// if there is an edge connecting v1 and v2, accept
// the new face
INT<2> parentedge(v1, v2);
parentedge.Sort();
if (v2e.Used(parentedge)){
INT<3> cf3 = { v0, v1, v2 };
cf3.Sort();
// cout << "intermediate: " << cf3 << " of " << f3 << endl;
intermediate_faces.Append (cf3);
}
}
}
}
}
cnt = 0;
for (int i = 0; i < intermediate_faces.Size(); i++)
@ -1355,7 +1387,7 @@ namespace netgen
}
// cout << "v2f:" << endl << v2f << endl;
parent_faces.SetSize (nfa);
parent_faces = { -1, { -1, -1, -1, -1 } };
@ -2363,24 +2395,45 @@ namespace netgen
int MeshTopology :: GetVerticesEdge ( int v1, int v2 ) const
{
// NgArray<int> elementedges;
// Array<ElementIndex> elements_v1;
// GetVertexElements ( v1, elements_v1);
auto elements_v1 = GetVertexElements ( v1 );
// int edv1, edv2;
for ( int i = 0; i < elements_v1.Size(); i++ )
{
// GetElementEdges( elements_v1[i]+1, elementedges );
auto elementedges = GetEdges(ElementIndex(elements_v1[i]));
for ( int ed = 0; ed < elementedges.Size(); ed ++)
{
// GetEdgeVertices( elementedges[ed]+1, edv1, edv2 );
auto [edv1,edv2] = GetEdgeVertices (elementedges[ed]);
if ( ( edv1 == v1 && edv2 == v2 ) || ( edv1 == v2 && edv2 == v1 ) )
return elementedges[ed];
}
/*
if (vert2element.Size() > 0)
{
auto elements_v1 = GetVertexElements ( v1 );
// int edv1, edv2;
for ( int i = 0; i < elements_v1.Size(); i++ )
{
// GetElementEdges( elements_v1[i]+1, elementedges );
auto elementedges = GetEdges(ElementIndex(elements_v1[i]));
for ( int ed = 0; ed < elementedges.Size(); ed ++)
{
// GetEdgeVertices( elementedges[ed]+1, edv1, edv2 );
auto [edv1,edv2] = GetEdgeVertices (elementedges[ed]);
if ( ( edv1 == v1 && edv2 == v2 ) || ( edv1 == v2 && edv2 == v1 ) )
return elementedges[ed];
}
}
}
*/
if (vert2element.Size() > 0)
for (auto ei : GetVertexElements ( v1 ))
for (auto ed : GetEdges(ei))
{
auto [edv1,edv2] = GetEdgeVertices (ed);
if ( ( edv1 == v1 && edv2 == v2 ) || ( edv1 == v2 && edv2 == v1 ) )
return ed;
}
if (vert2surfelement.Size() > 0)
for (auto sei : GetVertexSurfaceElements ( v1 ))
for (auto ed : GetEdges(sei))
{
auto [edv1,edv2] = GetEdgeVertices (ed);
if ( ( edv1 == v1 && edv2 == v2 ) || ( edv1 == v2 && edv2 == v1 ) )
return ed;
}
return -1;
}

2
libsrc/meshing/topology.hpp
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@ -205,7 +205,7 @@ public:
FlatArray<int> GetVertexPointElements (PointIndex vnr) const
{ return vert2pointelement[vnr]; }
int GetVerticesEdge ( int v1, int v2) const;
DLL_HEADER int GetVerticesEdge ( int v1, int v2) const;
void GetSegmentVolumeElements ( int segnr, NgArray<ElementIndex> & els ) const;
void GetSegmentSurfaceElements ( int segnr, NgArray<SurfaceElementIndex> & els ) const;