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EDF 30254 - quadratic to biquadratic : several problems

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Fixed problem when for volume with type BiQuadratic Pentahedron boundary elements for triangle side is quadratic and not bi-quadratic
This commit is contained in:
asozinov 2024-08-26 16:40:48 +01:00
parent 82a30347d8
commit 5ffe84898a
2 changed files with 64 additions and 11 deletions
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18
src/SMDS/SMDS_VolumeTool.cxx
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@ -274,9 +274,9 @@ static int QuadPyram_nbN [] = { 8, 6, 6, 6, 6 };
// N3 +----+----+ N5 +----+----+
// | |11 | | | |
// | | | | | | Central nodes
// | +13 | QUADRATIC | 17 + | of bi-quadratic
// | +13 | QUADRATIC | 16 + | of bi-quadratic
// | | | PENTAHEDRON | + | + | PENTAHEDRON
// 12+ | +14 + | 16 +
// 12+ | +14 + | 17 +
// | | | | 18| |
// | | | | | |
// | + N1 | | + |
@ -304,8 +304,8 @@ static int QuadPenta_nbN [] = { 6, 6, 8, 8, 8 };
static int BiQuadPenta_F[5][9] = { // FORWARD
{ 0, 6, 1, 7, 2, 8, 0, 0, 0 },
{ 3, 11,5, 10,4, 9, 3, 3, 3 },
{ 0, 12,3, 9, 4, 13,1, 6, 17}, //!
{ 1, 13,4, 10,5, 14,2, 7, 16}, //!
{ 0, 12,3, 9, 4, 13,1, 6, 16}, //!
{ 1, 13,4, 10,5, 14,2, 7, 17}, //!
{ 0, 8, 2, 14,5, 11,3, 12,18} }; //!
static int BiQuadPenta_RE[5][9] = { // REVERSED -> EXTERNAL
{ 0, 8, 2, 7, 1, 6, 0, 0, 0 },
@ -1728,6 +1728,16 @@ int SMDS_VolumeTool::GetCenterNodeIndex( int faceIndex ) const
return faceIndex + 19;
}
}
else if (myAllFacesNbNodes && myVolumeNodes.size() == 18) // element with 18 nodes
{
switch (faceIndex) {
case 2: return 15;
case 3: return 16;
case 4: return 17;
default:
return -2;
}
}
return -1;
}

57
src/SMESH/SMESH_MeshEditor.cxx
View File

@ -13046,15 +13046,58 @@ int SMESH_MeshEditor::MakeBoundaryMesh(const TIDSortedElemSet& elements,
if (iQuad)
for ( inode = 1; inode < nbFaceNodes; inode += 2)
nodes.push_back( nn[inode] ); // add medium nodes
int iCenter = vTool.GetCenterNodeIndex(iface); // for HEX27
if ( iCenter > 0 )
nodes.push_back( vTool.GetNodes()[ iCenter ] );
if (const SMDS_MeshElement * f = aMesh->FindElement( nodes,
SMDSAbs_Face, /*noMedium=*/false ))
presentBndElems.push_back( f );
// for triangle face for Penta18 (BiQuadratic pentahedron) return -2
// because we haven't center node on triangle side, but it's need for create biquadratic face
int iCenter = vTool.GetCenterNodeIndex(iface); // for HEX27
// for triangle faces for Penta18 (BiQuadratic pentahedron) firstly check, exist face or not
// if not - create node in middle face
if (iCenter == -2)
{
SMDS_ElemIteratorPtr itF = nodes[0]->GetInverseElementIterator(SMDSAbs_Face);
bool isFound = false;
while (itF->more())
{
const SMDS_MeshElement* e = itF->next();
int nbNodesToCheck = e->NbNodes();
if (nbNodesToCheck == (int)nodes.size() + 1)
{
for (size_t i = 1; e && i < nodes.size() - 1; ++i)
{
int nodeIndex = e->GetNodeIndex(nodes[i]);
if (nodeIndex < 0 || nodeIndex >= nbNodesToCheck)
e = 0;
}
if (e)
{
presentBndElems.push_back(e);
isFound = true;
}
}
}
if (!isFound)
{
SMESH_MesherHelper aHelper(*myMesh);
double bc[3];
vTool.GetFaceBaryCenter(iface, bc[0], bc[1], bc[2]);
auto aNodeC = aHelper.AddNode(bc[0], bc[1], bc[2]);
nodes.push_back(aNodeC);
missingBndElems.push_back(nodes);
}
}
else
missingBndElems.push_back( nodes );
{
if (iCenter > 0)
nodes.push_back(vTool.GetNodes()[iCenter]);
if (const SMDS_MeshElement* f = aMesh->FindElement(nodes,
SMDSAbs_Face, /*noMedium=*/false))
presentBndElems.push_back(f);
else
missingBndElems.push_back(nodes);
}
if ( targetMesh != myMesh )
{