Builder of viscous layers. More...
Public Member Functions | |
| _ViscousBuilder () | |
| Constructor of _ViscousBuilder. | |
| SMESH_ComputeErrorPtr | Compute (SMESH_Mesh &mesh, const TopoDS_Shape &shape) |
| Does its job. | |
| void | RestoreListeners () |
| At study restoration, restore event listeners used to clear an inferior dim sub-mesh modified by viscous layers. | |
| bool | MakeN2NMap (_MeshOfSolid *pm) |
| computes SMESH_ProxyMesh.SubMesh._n2n | |
Private Member Functions | |
| bool | findSolidsWithLayers () |
| Finds SOLIDs to compute using viscous layers. | |
| bool | findFacesWithLayers () |
| bool | makeLayer (_SolidData &data) |
| Create the inner surface of the viscous layer and prepare data for infation. | |
| bool | setEdgeData (_LayerEdge &edge, const set< TGeomID > &subIds, SMESH_MesherHelper &helper, _SolidData &data) |
| Set data of _LayerEdge needed for smoothing. | |
| bool | findNeiborsOnEdge (const _LayerEdge *edge, const SMDS_MeshNode *&n1, const SMDS_MeshNode *&n2, _SolidData &data) |
| Find 2 neigbor nodes of a node on EDGE. | |
| void | getSimplices (const SMDS_MeshNode *node, vector< _Simplex > &simplices, const set< TGeomID > &ingnoreShapes, const _SolidData *dataToCheckOri=0) |
| Fills a vector<_Simplex > | |
| bool | sortEdges (_SolidData &data, vector< vector< _LayerEdge * > > &edgesByGeom) |
| Separate shapes (and _LayerEdge's on them) to smooth from the rest ones. | |
| void | limitStepSize (_SolidData &data, const SMDS_MeshElement *face, const double cosin) |
| Compute inflation step size by min size of element on a convex surface. | |
| void | limitStepSize (_SolidData &data, const double minSize) |
| Compute inflation step size by min size of element on a convex surface. | |
| bool | inflate (_SolidData &data) |
| Increase length of _LayerEdge's to reach the required thickness of layers. | |
| bool | smoothAndCheck (_SolidData &data, const int nbSteps, double &distToIntersection) |
| Improve quality of layer inner surface and check intersection. | |
| bool | smoothAnalyticEdge (_SolidData &data, const int iFrom, const int iTo, Handle(Geom_Surface)&surface, const TopoDS_Face &F, SMESH_MesherHelper &helper) |
| smooth _LayerEdge's on a staight EDGE or circular EDGE | |
| bool | updateNormals (_SolidData &data, SMESH_MesherHelper &helper) |
| Modify normals of _LayerEdge's on EDGE's to avoid intersection with _LayerEdge's on neighbor EDGE's. | |
| bool | refine (_SolidData &data) |
| Create layers of prisms. | |
| bool | shrink () |
| Shrink 2D mesh on faces to let space for inflated layers. | |
| bool | prepareEdgeToShrink (_LayerEdge &edge, const TopoDS_Face &F, SMESH_MesherHelper &helper, const SMESHDS_SubMesh *faceSubMesh) |
| Computes 2d shrink direction and finds nodes limiting shrinking. | |
| bool | addBoundaryElements () |
| Creates 2D and 1D elements on boundaries of new prisms. | |
| bool | error (const string &text, int solidID=-1) |
| Stores error description and returns false. | |
| SMESHDS_Mesh * | getMeshDS () |
| void | makeGroupOfLE () |
| DEBUG. | |
Private Attributes | |
| SMESH_Mesh * | _mesh |
| SMESH_ComputeErrorPtr | _error |
| vector< _SolidData > | _sdVec |
| set< TGeomID > | _ignoreShapeIds |
| int | _tmpFaceID |
Builder of viscous layers.
Definition at line 420 of file StdMeshers_ViscousLayers.cxx.
| _ViscousBuilder::_ViscousBuilder | ( | ) |
Constructor of _ViscousBuilder.
Definition at line 776 of file StdMeshers_ViscousLayers.cxx.
References COMPERR_OK, and SMESH_ComputeError.New().
{
_error = SMESH_ComputeError::New(COMPERR_OK);
_tmpFaceID = 0;
}
| bool _ViscousBuilder::addBoundaryElements | ( | ) | [private] |
Creates 2D and 1D elements on boundaries of new prisms.
Definition at line 4063 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._index, VISCOUS._SolidData._n2eMap, VISCOUS._SolidData._proxyMesh, VISCOUS._SolidData._shrinkShape2Shape, VISCOUS._SolidData._solid, SMESHDS_SubMesh.AddElement(), SMESH_MesherHelper.GetAncestors(), VISCOUS._MeshOfSolid.getFaceSubM(), SMDS_MeshNode.GetInverseElementIterator(), SMDS_MeshElement.GetNodeIndex(), SMESH_Algo.GetSortedNodesOnEdge(), SMESH_MesherHelper.GetSubShapeOri(), SMESH_MesherHelper.IsSubShape(), SMESH_AdvancedEditor.nn1, SMESH_AdvancedEditor.nn2, reverse(), and SMDSAbs_Volume.
{
SMESH_MesherHelper helper( *_mesh );
for ( unsigned i = 0; i < _sdVec.size(); ++i )
{
_SolidData& data = _sdVec[i];
TopTools_IndexedMapOfShape geomEdges;
TopExp::MapShapes( data._solid, TopAbs_EDGE, geomEdges );
for ( int iE = 1; iE <= geomEdges.Extent(); ++iE )
{
const TopoDS_Edge& E = TopoDS::Edge( geomEdges(iE));
// Get _LayerEdge's based on E
map< double, const SMDS_MeshNode* > u2nodes;
if ( !SMESH_Algo::GetSortedNodesOnEdge( getMeshDS(), E, /*ignoreMedium=*/false, u2nodes))
continue;
vector< _LayerEdge* > ledges; ledges.reserve( u2nodes.size() );
TNode2Edge & n2eMap = data._n2eMap;
map< double, const SMDS_MeshNode* >::iterator u2n = u2nodes.begin();
{
//check if 2D elements are needed on E
TNode2Edge::iterator n2e = n2eMap.find( u2n->second );
if ( n2e == n2eMap.end() ) continue; // no layers on vertex
ledges.push_back( n2e->second );
u2n++;
if (( n2e = n2eMap.find( u2n->second )) == n2eMap.end() )
continue; // no layers on E
ledges.push_back( n2eMap[ u2n->second ]);
const SMDS_MeshNode* tgtN0 = ledges[0]->_nodes.back();
const SMDS_MeshNode* tgtN1 = ledges[1]->_nodes.back();
int nbSharedPyram = 0;
SMDS_ElemIteratorPtr vIt = tgtN0->GetInverseElementIterator(SMDSAbs_Volume);
while ( vIt->more() )
{
const SMDS_MeshElement* v = vIt->next();
nbSharedPyram += int( v->GetNodeIndex( tgtN1 ) >= 0 );
}
if ( nbSharedPyram > 1 )
continue; // not free border of the pyramid
if ( getMeshDS()->FindFace( ledges[0]->_nodes[0], ledges[0]->_nodes[1],
ledges[1]->_nodes[0], ledges[1]->_nodes[1]))
continue; // faces already created
}
for ( ++u2n; u2n != u2nodes.end(); ++u2n )
ledges.push_back( n2eMap[ u2n->second ]);
// Find out orientation and type of face to create
bool reverse = false, isOnFace;
map< TGeomID, TopoDS_Shape >::iterator e2f =
data._shrinkShape2Shape.find( getMeshDS()->ShapeToIndex( E ));
TopoDS_Shape F;
if (( isOnFace = ( e2f != data._shrinkShape2Shape.end() )))
{
F = e2f->second.Oriented( TopAbs_FORWARD );
reverse = ( helper.GetSubShapeOri( F, E ) == TopAbs_REVERSED );
if ( helper.GetSubShapeOri( data._solid, F ) == TopAbs_REVERSED )
reverse = !reverse;
}
else
{
// find FACE with layers sharing E
PShapeIteratorPtr fIt = helper.GetAncestors( E, *_mesh, TopAbs_FACE );
while ( fIt->more() && F.IsNull() )
{
const TopoDS_Shape* pF = fIt->next();
if ( helper.IsSubShape( *pF, data._solid) &&
!_ignoreShapeIds.count( e2f->first ))
F = *pF;
}
}
// Find the sub-mesh to add new faces
SMESHDS_SubMesh* sm = 0;
if ( isOnFace )
sm = getMeshDS()->MeshElements( F );
else
sm = data._proxyMesh->getFaceSubM( TopoDS::Face(F), /*create=*/true );
if ( !sm )
return error("error in addBoundaryElements()", data._index);
// Make faces
const int dj1 = reverse ? 0 : 1;
const int dj2 = reverse ? 1 : 0;
for ( unsigned j = 1; j < ledges.size(); ++j )
{
vector< const SMDS_MeshNode*>& nn1 = ledges[j-dj1]->_nodes;
vector< const SMDS_MeshNode*>& nn2 = ledges[j-dj2]->_nodes;
if ( isOnFace )
for ( unsigned z = 1; z < nn1.size(); ++z )
sm->AddElement( getMeshDS()->AddFace( nn1[z-1], nn2[z-1], nn2[z], nn1[z] ));
else
for ( unsigned z = 1; z < nn1.size(); ++z )
sm->AddElement( new SMDS_FaceOfNodes( nn1[z-1], nn2[z-1], nn2[z], nn1[z]));
}
}
}
return true;
}
| SMESH_ComputeErrorPtr _ViscousBuilder::Compute | ( | SMESH_Mesh & | mesh, |
| const TopoDS_Shape & | shape | ||
| ) |
Does its job.
Definition at line 867 of file StdMeshers_ViscousLayers.cxx.
References ex29_refine.refine().
{
// TODO: set priority of solids during Gen::Compute()
_mesh = & theMesh;
// check if proxy mesh already computed
TopExp_Explorer exp( theShape, TopAbs_SOLID );
if ( !exp.More() )
return error("No SOLID's in theShape"), _error;
if ( _ViscousListener::GetSolidMesh( _mesh, exp.Current(), /*toCreate=*/false))
return SMESH_ComputeErrorPtr(); // everything already computed
PyDump debugDump;
// TODO: ignore already computed SOLIDs
if ( !findSolidsWithLayers())
return _error;
if ( !findFacesWithLayers() )
return _error;
for ( unsigned i = 0; i < _sdVec.size(); ++i )
{
if ( ! makeLayer(_sdVec[i]) )
return _error;
if ( ! inflate(_sdVec[i]) )
return _error;
if ( ! refine(_sdVec[i]) )
return _error;
}
if ( !shrink() )
return _error;
addBoundaryElements();
makeGroupOfLE(); // debug
return _error;
}
Stores error description and returns false.
Definition at line 788 of file StdMeshers_ViscousLayers.cxx.
References COMPERR_ALGO_FAILED.
{
_error->myName = COMPERR_ALGO_FAILED;
_error->myComment = string("Viscous layers builder: ") + text;
if ( _mesh )
{
SMESH_subMesh* sm = _mesh->GetSubMeshContaining( solidId );
if ( !sm && !_sdVec.empty() )
sm = _mesh->GetSubMeshContaining( _sdVec[0]._index );
if ( sm && sm->GetSubShape().ShapeType() == TopAbs_SOLID )
{
SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
if ( smError && smError->myAlgo )
_error->myAlgo = smError->myAlgo;
smError = _error;
}
}
makeGroupOfLE(); // debug
return false;
}
| bool _ViscousBuilder::findFacesWithLayers | ( | ) | [private] |
Definition at line 960 of file StdMeshers_ViscousLayers.cxx.
References ex01_cube2build.algo, SMESH_test.edge, SMESH_MesherHelper.GetAncestors(), SMESH_test.ids, SMESH_Algo.IsReversedSubMesh(), SMESH_MesherHelper.IsSubShape(), and SMESH_MesherHelper.NbAncestors().
{
// collect all faces to ignore defined by hyp
vector<TopoDS_Shape> ignoreFaces;
for ( unsigned i = 0; i < _sdVec.size(); ++i )
{
vector<TGeomID> ids = _sdVec[i]._hyp->GetIgnoreFaces();
for ( unsigned i = 0; i < ids.size(); ++i )
{
const TopoDS_Shape& s = getMeshDS()->IndexToShape( ids[i] );
if ( !s.IsNull() && s.ShapeType() == TopAbs_FACE )
{
_ignoreShapeIds.insert( ids[i] );
ignoreFaces.push_back( s );
}
}
}
// ignore internal faces
SMESH_MesherHelper helper( *_mesh );
TopExp_Explorer exp;
for ( unsigned i = 0; i < _sdVec.size(); ++i )
{
exp.Init( _sdVec[i]._solid.Oriented( TopAbs_FORWARD ), TopAbs_FACE );
for ( ; exp.More(); exp.Next() )
{
TGeomID faceInd = getMeshDS()->ShapeToIndex( exp.Current() );
if ( helper.NbAncestors( exp.Current(), *_mesh, TopAbs_SOLID ) > 1 )
{
_ignoreShapeIds.insert( faceInd );
ignoreFaces.push_back( exp.Current() );
if ( SMESH_Algo::IsReversedSubMesh( TopoDS::Face( exp.Current() ), getMeshDS()))
_sdVec[i]._reversedFaceIds.insert( faceInd );
}
}
}
// Find faces to shrink mesh on (solution 2 in issue 0020832);
TopTools_IndexedMapOfShape shapes;
for ( unsigned i = 0; i < _sdVec.size(); ++i )
{
shapes.Clear();
TopExp::MapShapes(_sdVec[i]._solid, TopAbs_EDGE, shapes);
for ( int iE = 1; iE <= shapes.Extent(); ++iE )
{
const TopoDS_Shape& edge = shapes(iE);
// find 2 faces sharing an edge
TopoDS_Shape FF[2];
PShapeIteratorPtr fIt = helper.GetAncestors(edge, *_mesh, TopAbs_FACE);
while ( fIt->more())
{
const TopoDS_Shape* f = fIt->next();
if ( helper.IsSubShape( *f, _sdVec[i]._solid))
FF[ int( !FF[0].IsNull()) ] = *f;
}
if( FF[1].IsNull() ) continue; // seam edge can be shared by 1 FACE only
// check presence of layers on them
int ignore[2];
for ( int j = 0; j < 2; ++j )
ignore[j] = _ignoreShapeIds.count ( getMeshDS()->ShapeToIndex( FF[j] ));
if ( ignore[0] == ignore[1] ) continue; // nothing interesting
TopoDS_Shape fWOL = FF[ ignore[0] ? 0 : 1 ];
// add edge to maps
TGeomID edgeInd = getMeshDS()->ShapeToIndex( edge );
_sdVec[i]._shrinkShape2Shape.insert( make_pair( edgeInd, fWOL ));
}
}
// Exclude from _shrinkShape2Shape FACE's that can't be shrinked since
// the algo of the SOLID sharing the FACE does not support it
set< string > notSupportAlgos; notSupportAlgos.insert("Hexa_3D");
for ( unsigned i = 0; i < _sdVec.size(); ++i )
{
TopTools_MapOfShape noShrinkVertices;
map< TGeomID, TopoDS_Shape >::iterator e2f = _sdVec[i]._shrinkShape2Shape.begin();
for ( ; e2f != _sdVec[i]._shrinkShape2Shape.end(); ++e2f )
{
const TopoDS_Shape& fWOL = e2f->second;
TGeomID edgeID = e2f->first;
bool notShrinkFace = false;
PShapeIteratorPtr soIt = helper.GetAncestors(fWOL, *_mesh, TopAbs_SOLID);
while ( soIt->more())
{
const TopoDS_Shape* solid = soIt->next();
if ( _sdVec[i]._solid.IsSame( *solid )) continue;
SMESH_Algo* algo = _mesh->GetGen()->GetAlgo( *_mesh, *solid );
if ( !algo || !notSupportAlgos.count( algo->GetName() )) continue;
notShrinkFace = true;
for ( unsigned j = 0; j < _sdVec.size(); ++j )
{
if ( _sdVec[j]._solid.IsSame( *solid ) )
if ( _sdVec[j]._shrinkShape2Shape.count( edgeID ))
notShrinkFace = false;
}
}
if ( notShrinkFace )
{
_sdVec[i]._noShrinkFaces.insert( getMeshDS()->ShapeToIndex( fWOL ));
for ( TopExp_Explorer vExp( fWOL, TopAbs_VERTEX ); vExp.More(); vExp.Next() )
noShrinkVertices.Add( vExp.Current() );
}
}
// erase from _shrinkShape2Shape all srink EDGE's of a SOLID connected
// to the found not shrinked fWOL's
e2f = _sdVec[i]._shrinkShape2Shape.begin();
for ( ; e2f != _sdVec[i]._shrinkShape2Shape.end(); )
{
TGeomID edgeID = e2f->first;
TopoDS_Vertex VV[2];
TopExp::Vertices( TopoDS::Edge( getMeshDS()->IndexToShape( edgeID )),VV[0],VV[1]);
if ( noShrinkVertices.Contains( VV[0] ) || noShrinkVertices.Contains( VV[1] ))
_sdVec[i]._shrinkShape2Shape.erase( e2f++ );
else
e2f++;
}
}
// Find the SHAPE along which to inflate _LayerEdge based on VERTEX
for ( unsigned i = 0; i < _sdVec.size(); ++i )
{
shapes.Clear();
TopExp::MapShapes(_sdVec[i]._solid, TopAbs_VERTEX, shapes);
for ( int iV = 1; iV <= shapes.Extent(); ++iV )
{
const TopoDS_Shape& vertex = shapes(iV);
// find faces WOL sharing the vertex
vector< TopoDS_Shape > facesWOL;
int totalNbFaces = 0;
PShapeIteratorPtr fIt = helper.GetAncestors(vertex, *_mesh, TopAbs_FACE);
while ( fIt->more())
{
const TopoDS_Shape* f = fIt->next();
const int fID = getMeshDS()->ShapeToIndex( *f );
if ( helper.IsSubShape( *f, _sdVec[i]._solid ) )
{
totalNbFaces++;
if ( _ignoreShapeIds.count ( fID ) && ! _sdVec[i]._noShrinkFaces.count( fID ))
facesWOL.push_back( *f );
}
}
if ( facesWOL.size() == totalNbFaces || facesWOL.empty() )
continue; // no layers at this vertex or no WOL
TGeomID vInd = getMeshDS()->ShapeToIndex( vertex );
switch ( facesWOL.size() )
{
case 1:
{
_sdVec[i]._shrinkShape2Shape.insert( make_pair( vInd, facesWOL[0] )); break;
}
case 2:
{
// find an edge shared by 2 faces
PShapeIteratorPtr eIt = helper.GetAncestors(vertex, *_mesh, TopAbs_EDGE);
while ( eIt->more())
{
const TopoDS_Shape* e = eIt->next();
if ( helper.IsSubShape( *e, facesWOL[0]) &&
helper.IsSubShape( *e, facesWOL[1]))
{
_sdVec[i]._shrinkShape2Shape.insert( make_pair( vInd, *e )); break;
}
}
break;
}
default:
return error("Not yet supported case", _sdVec[i]._index);
}
}
}
return true;
}
| bool _ViscousBuilder::findNeiborsOnEdge | ( | const _LayerEdge * | edge, |
| const SMDS_MeshNode *& | n1, | ||
| const SMDS_MeshNode *& | n2, | ||
| _SolidData & | data | ||
| ) | [private] |
Find 2 neigbor nodes of a node on EDGE.
Definition at line 1678 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._index, VISCOUS._LayerEdge._nodes, VISCOUS._LayerEdge._sWOL, SMESHDS_SubMesh.Contains(), SMDS_MeshNode.GetInverseElementIterator(), SMDS_MeshElement.GetNode(), SMDS_MeshNode.GetPosition(), SMDS_MeshElement.getshapeId(), SMESH_MesherHelper.GetSubShapeByNode(), SMDS_Position.GetTypeOfPosition(), SMESH_MesherHelper.IsSubShape(), SMESH_AdvancedEditor.n1, SMESH_AdvancedEditor.n2, SMESHDS_SubMesh.NbElements(), SMDS_TOP_EDGE, and SMDSAbs_Edge.
{
const SMDS_MeshNode* node = edge->_nodes[0];
const int shapeInd = node->getshapeId();
SMESHDS_SubMesh* edgeSM = 0;
if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE )
{
edgeSM = getMeshDS()->MeshElements( shapeInd );
if ( !edgeSM || edgeSM->NbElements() == 0 )
return error(SMESH_Comment("Not meshed EDGE ") << shapeInd, data._index);
}
int iN = 0;
n2 = 0;
SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator(SMDSAbs_Edge);
while ( eIt->more() && !n2 )
{
const SMDS_MeshElement* e = eIt->next();
const SMDS_MeshNode* nNeibor = e->GetNode( 0 );
if ( nNeibor == node ) nNeibor = e->GetNode( 1 );
if ( edgeSM )
{
if (!edgeSM->Contains(e)) continue;
}
else
{
TopoDS_Shape s = SMESH_MesherHelper::GetSubShapeByNode(nNeibor, getMeshDS() );
if ( !SMESH_MesherHelper::IsSubShape( s, edge->_sWOL )) continue;
}
( iN++ ? n2 : n1 ) = nNeibor;
}
if ( !n2 )
return error(SMESH_Comment("Wrongly meshed EDGE ") << shapeInd, data._index);
return true;
}
| bool _ViscousBuilder::findSolidsWithLayers | ( | ) | [private] |
Finds SOLIDs to compute using viscous layers.
Fill _sdVec
Definition at line 918 of file StdMeshers_ViscousLayers.cxx.
References ex01_cube2build.algo, StdMeshers_ViscousLayers.GetHypType(), and SMESH_demo_hexa2_upd.hyp.
{
// get all solids
TopTools_IndexedMapOfShape allSolids;
TopExp::MapShapes( _mesh->GetShapeToMesh(), TopAbs_SOLID, allSolids );
_sdVec.reserve( allSolids.Extent());
SMESH_Gen* gen = _mesh->GetGen();
for ( int i = 1; i <= allSolids.Extent(); ++i )
{
// find StdMeshers_ViscousLayers hyp assigned to the i-th solid
SMESH_Algo* algo = gen->GetAlgo( *_mesh, allSolids(i) );
if ( !algo ) continue;
// TODO: check if algo is hidden
const list <const SMESHDS_Hypothesis *> & allHyps =
algo->GetUsedHypothesis(*_mesh, allSolids(i), /*ignoreAuxiliary=*/false);
list< const SMESHDS_Hypothesis *>::const_iterator hyp = allHyps.begin();
const StdMeshers_ViscousLayers* viscHyp = 0;
for ( ; hyp != allHyps.end() && !viscHyp; ++hyp )
viscHyp = dynamic_cast<const StdMeshers_ViscousLayers*>( *hyp );
if ( viscHyp )
{
_MeshOfSolid* proxyMesh = _ViscousListener::GetSolidMesh( _mesh,
allSolids(i),
/*toCreate=*/true);
_sdVec.push_back( _SolidData( allSolids(i), viscHyp, proxyMesh ));
_sdVec.back()._index = getMeshDS()->ShapeToIndex( allSolids(i));
}
}
if ( _sdVec.empty() )
return error
( SMESH_Comment(StdMeshers_ViscousLayers::GetHypType()) << " hypothesis not found",0);
return true;
}
| SMESHDS_Mesh* VISCOUS._ViscousBuilder.getMeshDS | ( | ) | [private] |
Definition at line 471 of file StdMeshers_ViscousLayers.cxx.
{ return _mesh->GetMeshDS(); }
| void _ViscousBuilder::getSimplices | ( | const SMDS_MeshNode * | node, |
| vector< _Simplex > & | simplices, | ||
| const set< TGeomID > & | ingnoreShapes, | ||
| const _SolidData * | dataToCheckOri = 0 |
||
| ) | [private] |
Fills a vector<_Simplex >
Definition at line 1817 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._reversedFaceIds, SMDS_MeshNode.GetInverseElementIterator(), SMDS_MeshElement.GetNode(), SMDS_MeshElement.GetNodeIndex(), SMDS_MeshElement.NbCornerNodes(), SMDSAbs_Face, and SMESH_MesherHelper.WrapIndex().
{
SMESH_MeshEditor editor( _mesh );
SMDS_ElemIteratorPtr fIt = node->GetInverseElementIterator(SMDSAbs_Face);
while ( fIt->more() )
{
const SMDS_MeshElement* f = fIt->next();
const TGeomID shapeInd = editor.FindShape( f );
if ( ingnoreShapes.count( shapeInd )) continue;
const int nbNodes = f->NbCornerNodes();
int srcInd = f->GetNodeIndex( node );
const SMDS_MeshNode* nPrev = f->GetNode( SMESH_MesherHelper::WrapIndex( srcInd-1, nbNodes ));
const SMDS_MeshNode* nNext = f->GetNode( SMESH_MesherHelper::WrapIndex( srcInd+1, nbNodes ));
if ( dataToCheckOri && dataToCheckOri->_reversedFaceIds.count( shapeInd ))
std::swap( nPrev, nNext );
simplices.push_back( _Simplex( nPrev, nNext ));
}
simplices.resize( simplices.size() );
}
| bool _ViscousBuilder::inflate | ( | _SolidData & | data | ) | [private] |
Increase length of _LayerEdge's to reach the required thickness of layers.
Definition at line 1914 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._edges, VISCOUS._SolidData._epsilon, VISCOUS._SolidData._hyp, VISCOUS._SolidData._index, VISCOUS._SolidData._proxyMesh, VISCOUS._SolidData._solid, VISCOUS._SolidData._stepSize, VISCOUS._SolidData._stepSizeCoeff, VISCOUS._SolidData._stepSizeNodes, SMESH_TNodeXYZ.Distance(), and SMESH_ProxyMesh.GetFaces().
{
SMESH_MesherHelper helper( *_mesh );
// Limit inflation step size by geometry size found by itersecting
// normals of _LayerEdge's with mesh faces
double geomSize = Precision::Infinite(), intersecDist;
SMESH_MeshEditor editor( _mesh );
auto_ptr<SMESH_ElementSearcher> searcher
( editor.GetElementSearcher( data._proxyMesh->GetFaces( data._solid )) );
for ( unsigned i = 0; i < data._edges.size(); ++i )
{
if ( data._edges[i]->IsOnEdge() ) continue;
data._edges[i]->FindIntersection( *searcher, intersecDist, data._epsilon );
if ( geomSize > intersecDist )
geomSize = intersecDist;
}
if ( data._stepSize > 0.3 * geomSize )
limitStepSize( data, 0.3 * geomSize );
const double tgtThick = data._hyp->GetTotalThickness();
if ( data._stepSize > tgtThick )
limitStepSize( data, tgtThick );
if ( data._stepSize < 1. )
data._epsilon = data._stepSize * 1e-7;
#ifdef __myDEBUG
cout << "-- geomSize = " << geomSize << ", stepSize = " << data._stepSize << endl;
#endif
double avgThick = 0, curThick = 0, distToIntersection = Precision::Infinite();
int nbSteps = 0, nbRepeats = 0;
while ( 1.01 * avgThick < tgtThick )
{
// new target length
curThick += data._stepSize;
if ( curThick > tgtThick )
{
curThick = tgtThick + ( tgtThick-avgThick ) * nbRepeats;
nbRepeats++;
}
// Elongate _LayerEdge's
dumpFunction(SMESH_Comment("inflate")<<data._index<<"_step"<<nbSteps); // debug
for ( unsigned i = 0; i < data._edges.size(); ++i )
{
data._edges[i]->SetNewLength( curThick, helper );
}
dumpFunctionEnd();
if ( !nbSteps )
if ( !updateNormals( data, helper ) )
return false;
// Improve and check quality
if ( !smoothAndCheck( data, nbSteps, distToIntersection ))
{
if ( nbSteps > 0 )
{
dumpFunction(SMESH_Comment("invalidate")<<data._index<<"_step"<<nbSteps); // debug
for ( unsigned i = 0; i < data._edges.size(); ++i )
{
data._edges[i]->InvalidateStep( nbSteps+1 );
}
dumpFunctionEnd();
}
break; // no more inflating possible
}
nbSteps++;
// Evaluate achieved thickness
avgThick = 0;
for ( unsigned i = 0; i < data._edges.size(); ++i )
avgThick += data._edges[i]->_len;
avgThick /= data._edges.size();
#ifdef __myDEBUG
cout << "-- Thickness " << avgThick << " reached" << endl;
#endif
if ( distToIntersection < avgThick*1.5 )
{
#ifdef __myDEBUG
cout << "-- Stop inflation since distToIntersection( "<<distToIntersection<<" ) < avgThick( "
<< avgThick << " ) * 1.5" << endl;
#endif
break;
}
// new step size
limitStepSize( data, 0.25 * distToIntersection );
if ( data._stepSizeNodes[0] )
data._stepSize = data._stepSizeCoeff *
SMESH_TNodeXYZ(data._stepSizeNodes[0]).Distance(data._stepSizeNodes[1]);
}
if (nbSteps == 0 )
return error("failed at the very first inflation step", data._index);
return true;
}
| void _ViscousBuilder::limitStepSize | ( | _SolidData & | data, |
| const SMDS_MeshElement * | face, | ||
| const double | cosin | ||
| ) | [private] |
Compute inflation step size by min size of element on a convex surface.
Definition at line 1302 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._stepSize, VISCOUS._SolidData._stepSizeCoeff, VISCOUS._SolidData._stepSizeNodes, SMDS_MeshElement.GetNode(), SMDS_MeshNode.GetPosition(), SMDS_Position.GetTypeOfPosition(), SMDS_MeshElement.NbCornerNodes(), SMDS_TOP_FACE, and SMESH_MesherHelper.WrapIndex().
{
int iN = 0;
double minSize = 10 * data._stepSize;
const int nbNodes = face->NbCornerNodes();
for ( int i = 0; i < nbNodes; ++i )
{
const SMDS_MeshNode* nextN = face->GetNode( SMESH_MesherHelper::WrapIndex( i+1, nbNodes ));
const SMDS_MeshNode* curN = face->GetNode( i );
if ( nextN->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ||
curN->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
{
double dist = SMESH_TNodeXYZ( face->GetNode(i)).Distance( nextN );
if ( dist < minSize )
minSize = dist, iN = i;
}
}
double newStep = 0.8 * minSize / cosin;
if ( newStep < data._stepSize )
{
data._stepSize = newStep;
data._stepSizeCoeff = 0.8 / cosin;
data._stepSizeNodes[0] = face->GetNode( iN );
data._stepSizeNodes[1] = face->GetNode( SMESH_MesherHelper::WrapIndex( iN+1, nbNodes ));
}
}
| void _ViscousBuilder::limitStepSize | ( | _SolidData & | data, |
| const double | minSize | ||
| ) | [private] |
Compute inflation step size by min size of element on a convex surface.
Definition at line 1337 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._stepSize, VISCOUS._SolidData._stepSizeCoeff, VISCOUS._SolidData._stepSizeNodes, and SMESH_TNodeXYZ.Distance().
{
if ( minSize < data._stepSize )
{
data._stepSize = minSize;
if ( data._stepSizeNodes[0] )
{
double dist =
SMESH_TNodeXYZ(data._stepSizeNodes[0]).Distance(data._stepSizeNodes[1]);
data._stepSizeCoeff = data._stepSize / dist;
}
}
}
| void _ViscousBuilder::makeGroupOfLE | ( | ) | [private] |
DEBUG.
Create groups contating temorary data of _LayerEdge's
Definition at line 1846 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._LayerEdge._nodes, VISCOUS._LayerEdge._normal, SMESH_test.edge, SMDS_MeshElement.GetID(), SMDS_MeshElement.GetNode(), and SMDS_MeshElement.NbCornerNodes().
{
#ifdef _DEBUG_
for ( unsigned i = 0 ; i < _sdVec.size(); ++i )
{
if ( _sdVec[i]._edges.empty() ) continue;
// string name = SMESH_Comment("_LayerEdge's_") << i;
// int id;
// SMESH_Group* g = _mesh->AddGroup(SMDSAbs_Edge, name.c_str(), id );
// SMESHDS_Group* gDS = (SMESHDS_Group*)g->GetGroupDS();
// SMESHDS_Mesh* mDS = _mesh->GetMeshDS();
dumpFunction( SMESH_Comment("make_LayerEdge_") << i );
for ( unsigned j = 0 ; j < _sdVec[i]._edges.size(); ++j )
{
_LayerEdge* le = _sdVec[i]._edges[j];
for ( unsigned iN = 1; iN < le->_nodes.size(); ++iN )
dumpCmd(SMESH_Comment("mesh.AddEdge([ ") <<le->_nodes[iN-1]->GetID()
<< ", " << le->_nodes[iN]->GetID() <<"])");
//gDS->SMDSGroup().Add( mDS->AddEdge( le->_nodes[iN-1], le->_nodes[iN]));
}
dumpFunctionEnd();
dumpFunction( SMESH_Comment("makeNormals") << i );
for ( unsigned j = 0 ; j < _sdVec[i]._edges.size(); ++j )
{
_LayerEdge& edge = *_sdVec[i]._edges[j];
SMESH_TNodeXYZ nXYZ( edge._nodes[0] );
nXYZ += edge._normal * _sdVec[i]._stepSize;
dumpCmd(SMESH_Comment("mesh.AddEdge([ ") <<edge._nodes[0]->GetID()
<< ", mesh.AddNode( " << nXYZ.X()<<","<< nXYZ.Y()<<","<< nXYZ.Z()<<")])");
}
dumpFunctionEnd();
// name = SMESH_Comment("tmp_faces ") << i;
// g = _mesh->AddGroup(SMDSAbs_Face, name.c_str(), id );
// gDS = (SMESHDS_Group*)g->GetGroupDS();
// SMESH_MeshEditor editor( _mesh );
dumpFunction( SMESH_Comment("makeTmpFaces_") << i );
TopExp_Explorer fExp( _sdVec[i]._solid, TopAbs_FACE );
for ( ; fExp.More(); fExp.Next() )
{
if (const SMESHDS_SubMesh* sm = _sdVec[i]._proxyMesh->GetProxySubMesh( fExp.Current()))
{
SMDS_ElemIteratorPtr fIt = sm->GetElements();
while ( fIt->more())
{
const SMDS_MeshElement* e = fIt->next();
SMESH_Comment cmd("mesh.AddFace([");
for ( int j=0; j < e->NbCornerNodes(); ++j )
cmd << e->GetNode(j)->GetID() << (j+1<e->NbCornerNodes() ? ",": "])");
dumpCmd( cmd );
//vector<const SMDS_MeshNode*> nodes( e->begin_nodes(), e->end_nodes() );
//gDS->SMDSGroup().Add( editor.AddElement( nodes, e->GetType(), e->IsPoly()));
}
}
}
dumpFunctionEnd();
}
#endif
}
| bool _ViscousBuilder::makeLayer | ( | _SolidData & | data | ) | [private] |
Create the inner surface of the viscous layer and prepare data for infation.
Definition at line 1139 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._LayerEdge._cosin, VISCOUS._SolidData._edges, VISCOUS._SolidData._epsilon, VISCOUS._SolidData._index, VISCOUS._SolidData._n2eMap, VISCOUS._Simplex._nNext, VISCOUS._LayerEdge._nodes, VISCOUS._SolidData._noShrinkFaces, VISCOUS._Simplex._nPrev, VISCOUS._SolidData._proxyMesh, VISCOUS._SolidData._shrinkShape2Shape, VISCOUS._SolidData._solid, VISCOUS._SolidData._stepSize, VISCOUS._SolidData._stepSizeNodes, SMESH_ProxyMesh.SubMesh.AddElement(), SMESH_MesherHelper.AddNode(), VISCOUS._LayerEdge.Copy(), SMESH_test.edge, PAL_MESH_043_3D.face, SMESHDS_SubMesh.GetElements(), VISCOUS._MeshOfSolid.getFaceSubM(), SMDS_MeshElement.GetNode(), SMDS_MeshNode.GetPosition(), SMDS_MeshElement.getshapeId(), SMDS_Position.GetTypeOfPosition(), SMDS_MeshElement.NbCornerNodes(), SMESH_MesherHelper.SetElementsOnShape(), SMESH_MesherHelper.SetSubShape(), SMDS_TOP_FACE, SMDSAbs_Volume, SMDS_MeshNode.X(), SMDS_MeshNode.Y(), and SMDS_MeshNode.Z().
{
// get all sub-shapes to make layers on
set<TGeomID> subIds, faceIds;
subIds = data._noShrinkFaces;
TopExp_Explorer exp( data._solid, TopAbs_FACE );
for ( ; exp.More(); exp.Next() )
if ( ! _ignoreShapeIds.count( getMeshDS()->ShapeToIndex( exp.Current() )))
{
SMESH_subMesh* fSubM = _mesh->GetSubMesh( exp.Current() );
faceIds.insert( fSubM->GetId() );
SMESH_subMeshIteratorPtr subIt =
fSubM->getDependsOnIterator(/*includeSelf=*/true, /*complexShapeFirst=*/false);
while ( subIt->more() )
subIds.insert( subIt->next()->GetId() );
}
// make a map to find new nodes on sub-shapes shared with other SOLID
map< TGeomID, TNode2Edge* > s2neMap;
map< TGeomID, TNode2Edge* >::iterator s2ne;
map< TGeomID, TopoDS_Shape >::iterator s2s = data._shrinkShape2Shape.begin();
for (; s2s != data._shrinkShape2Shape.end(); ++s2s )
{
TGeomID shapeInd = s2s->first;
for ( unsigned i = 0; i < _sdVec.size(); ++i )
{
if ( _sdVec[i]._index == data._index ) continue;
map< TGeomID, TopoDS_Shape >::iterator s2s2 = _sdVec[i]._shrinkShape2Shape.find( shapeInd );
if ( s2s2 != _sdVec[i]._shrinkShape2Shape.end() &&
*s2s == *s2s2 && !_sdVec[i]._n2eMap.empty() )
{
s2neMap.insert( make_pair( shapeInd, &_sdVec[i]._n2eMap ));
break;
}
}
}
// Create temporary faces and _LayerEdge's
dumpFunction(SMESH_Comment("makeLayers_")<<data._index);
data._stepSize = Precision::Infinite();
data._stepSizeNodes[0] = 0;
SMESH_MesherHelper helper( *_mesh );
helper.SetSubShape( data._solid );
helper.SetElementsOnShape(true);
vector< const SMDS_MeshNode*> newNodes; // of a mesh face
TNode2Edge::iterator n2e2;
// collect _LayerEdge's of shapes they are based on
const int nbShapes = getMeshDS()->MaxShapeIndex();
vector< vector<_LayerEdge*> > edgesByGeom( nbShapes+1 );
for ( set<TGeomID>::iterator id = faceIds.begin(); id != faceIds.end(); ++id )
{
SMESHDS_SubMesh* smDS = getMeshDS()->MeshElements( *id );
if ( !smDS ) return error(SMESH_Comment("Not meshed face ") << *id, data._index );
const TopoDS_Face& F = TopoDS::Face( getMeshDS()->IndexToShape( *id ));
SMESH_ProxyMesh::SubMesh* proxySub =
data._proxyMesh->getFaceSubM( F, /*create=*/true);
SMDS_ElemIteratorPtr eIt = smDS->GetElements();
while ( eIt->more() )
{
const SMDS_MeshElement* face = eIt->next();
newNodes.resize( face->NbCornerNodes() );
double faceMaxCosin = -1;
for ( int i = 0 ; i < face->NbCornerNodes(); ++i )
{
const SMDS_MeshNode* n = face->GetNode(i);
TNode2Edge::iterator n2e = data._n2eMap.insert( make_pair( n, (_LayerEdge*)0 )).first;
if ( !(*n2e).second )
{
// add a _LayerEdge
_LayerEdge* edge = new _LayerEdge();
n2e->second = edge;
edge->_nodes.push_back( n );
const int shapeID = n->getshapeId();
edgesByGeom[ shapeID ].push_back( edge );
// set edge data or find already refined _LayerEdge and get data from it
if ( n->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE &&
( s2ne = s2neMap.find( shapeID )) != s2neMap.end() &&
( n2e2 = (*s2ne).second->find( n )) != s2ne->second->end())
{
_LayerEdge* foundEdge = (*n2e2).second;
edge->Copy( *foundEdge, helper );
// location of the last node is modified but we can restore
// it by node position on _sWOL stored by the node
const_cast< SMDS_MeshNode* >
( edge->_nodes.back() )->setXYZ( n->X(), n->Y(), n->Z() );
}
else
{
edge->_nodes.push_back( helper.AddNode( n->X(), n->Y(), n->Z() ));
if ( !setEdgeData( *edge, subIds, helper, data ))
return false;
}
dumpMove(edge->_nodes.back());
if ( edge->_cosin > 0.01 )
{
if ( edge->_cosin > faceMaxCosin )
faceMaxCosin = edge->_cosin;
}
}
newNodes[ i ] = n2e->second->_nodes.back();
}
// create a temporary face
const SMDS_MeshElement* newFace = new TmpMeshFace( newNodes, --_tmpFaceID );
proxySub->AddElement( newFace );
// compute inflation step size by min size of element on a convex surface
if ( faceMaxCosin > 0.1 )
limitStepSize( data, face, faceMaxCosin );
} // loop on 2D elements on a FACE
} // loop on FACEs of a SOLID
data._epsilon = 1e-7;
if ( data._stepSize < 1. )
data._epsilon *= data._stepSize;
// Put _LayerEdge's into a vector
if ( !sortEdges( data, edgesByGeom ))
return false;
// Set target nodes into _Simplex and _2NearEdges
TNode2Edge::iterator n2e;
for ( unsigned i = 0; i < data._edges.size(); ++i )
{
if ( data._edges[i]->IsOnEdge())
for ( int j = 0; j < 2; ++j )
{
if ( data._edges[i]->_nodes.back()->NbInverseElements(SMDSAbs_Volume) > 0 )
break; // _LayerEdge is shared by two _SolidData's
const SMDS_MeshNode* & n = data._edges[i]->_2neibors->_nodes[j];
if (( n2e = data._n2eMap.find( n )) == data._n2eMap.end() )
return error("_LayerEdge not found by src node", data._index);
n = (*n2e).second->_nodes.back();
data._edges[i]->_2neibors->_edges[j] = n2e->second;
}
else
for ( unsigned j = 0; j < data._edges[i]->_simplices.size(); ++j )
{
_Simplex& s = data._edges[i]->_simplices[j];
s._nNext = data._n2eMap[ s._nNext ]->_nodes.back();
s._nPrev = data._n2eMap[ s._nPrev ]->_nodes.back();
}
}
dumpFunctionEnd();
return true;
}
| bool _ViscousBuilder::MakeN2NMap | ( | _MeshOfSolid * | pm | ) |
computes SMESH_ProxyMesh.SubMesh._n2n
Definition at line 828 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._MeshOfSolid._n2nMapComputed, SMESH_ProxyMesh.SubMesh.GetElements(), SMESHDS_SubMesh.GetElements(), SMESH_ProxyMesh.GetMeshDS(), SMDS_MeshElement.GetNode(), SMESH_ProxyMesh.GetProxySubMesh(), SMESHDS_Mesh.MeshElements(), SMESH_subMeshEventListenerData.mySubMeshes, SMESH_ProxyMesh.SubMesh.NbElements(), SMESHDS_SubMesh.NbElements(), SMDS_MeshElement.NbNodes(), and VISCOUS._MeshOfSolid.setNode2Node().
{
SMESH_subMesh* solidSM = pm->mySubMeshes.front();
TopExp_Explorer fExp( solidSM->GetSubShape(), TopAbs_FACE );
for ( ; fExp.More(); fExp.Next() )
{
SMESHDS_SubMesh* srcSmDS = pm->GetMeshDS()->MeshElements( fExp.Current() );
const SMESH_ProxyMesh::SubMesh* prxSmDS = pm->GetProxySubMesh( fExp.Current() );
if ( !srcSmDS || !prxSmDS || !srcSmDS->NbElements() || !prxSmDS->NbElements() )
continue;
if ( srcSmDS->GetElements()->next() == prxSmDS->GetElements()->next())
continue;
if ( srcSmDS->NbElements() != prxSmDS->NbElements() )
return error( "Different nb elements in a source and a proxy sub-mesh", solidSM->GetId());
SMDS_ElemIteratorPtr srcIt = srcSmDS->GetElements();
SMDS_ElemIteratorPtr prxIt = prxSmDS->GetElements();
while( prxIt->more() )
{
const SMDS_MeshElement* fSrc = srcIt->next();
const SMDS_MeshElement* fPrx = prxIt->next();
if ( fSrc->NbNodes() != fPrx->NbNodes())
return error( "Different elements in a source and a proxy sub-mesh", solidSM->GetId());
for ( int i = 0 ; i < fPrx->NbNodes(); ++i )
pm->setNode2Node( fSrc->GetNode(i), fPrx->GetNode(i), prxSmDS );
}
}
pm->_n2nMapComputed = true;
return true;
}
| bool _ViscousBuilder::prepareEdgeToShrink | ( | _LayerEdge & | edge, |
| const TopoDS_Face & | F, | ||
| SMESH_MesherHelper & | helper, | ||
| const SMESHDS_SubMesh * | faceSubMesh | ||
| ) | [private] |
Computes 2d shrink direction and finds nodes limiting shrinking.
Compute positions (UV) to set to a node on edge moved during shrinking
Definition at line 3544 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._LayerEdge._nodes, VISCOUS._LayerEdge._normal, VISCOUS._LayerEdge._pos, VISCOUS._LayerEdge._simplices, VISCOUS._LayerEdge._sWOL, SMESHDS_SubMesh.Contains(), ex21_lamp.faces, SMDS_MeshNode.GetInverseElementIterator(), SMDS_MeshElement.GetNode(), SMESH_MesherHelper.GetNodeU(), SMESH_MesherHelper.GetNodeUV(), SMDS_MeshNode.GetPosition(), SMDS_Position.GetTypeOfPosition(), VISCOUS.LEN_TGT, SMESH_AdvancedEditor.n2, SMESHDS_SubMesh.NbElements(), SMDS_EdgePosition.SetUParameter(), SMDS_FacePosition.SetUParameter(), SMDS_FacePosition.SetVParameter(), SMDS_TOP_FACE, SMDSAbs_Edge, SMDSAbs_Face, VISCOUS.U_SRC, and VISCOUS.U_TGT.
{
const SMDS_MeshNode* srcNode = edge._nodes[0];
const SMDS_MeshNode* tgtNode = edge._nodes.back();
edge._pos.clear();
if ( edge._sWOL.ShapeType() == TopAbs_FACE )
{
gp_XY srcUV = helper.GetNodeUV( F, srcNode );
gp_XY tgtUV = helper.GetNodeUV( F, tgtNode );
gp_Vec2d uvDir( srcUV, tgtUV );
double uvLen = uvDir.Magnitude();
uvDir /= uvLen;
edge._normal.SetCoord( uvDir.X(),uvDir.Y(), 0);
// IMPORTANT to have src nodes NOT yet REPLACED by tgt nodes in shrinked faces
vector<const SMDS_MeshElement*> faces;
multimap< double, const SMDS_MeshNode* > proj2node;
SMDS_ElemIteratorPtr fIt = srcNode->GetInverseElementIterator(SMDSAbs_Face);
while ( fIt->more() )
{
const SMDS_MeshElement* f = fIt->next();
if ( faceSubMesh->Contains( f ))
faces.push_back( f );
}
for ( unsigned i = 0; i < faces.size(); ++i )
{
const int nbNodes = faces[i]->NbCornerNodes();
for ( int j = 0; j < nbNodes; ++j )
{
const SMDS_MeshNode* n = faces[i]->GetNode(j);
if ( n == srcNode ) continue;
if ( n->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE &&
( faces.size() > 1 || nbNodes > 3 ))
continue;
gp_Pnt2d uv = helper.GetNodeUV( F, n );
gp_Vec2d uvDirN( srcUV, uv );
double proj = uvDirN * uvDir;
proj2node.insert( make_pair( proj, n ));
}
}
multimap< double, const SMDS_MeshNode* >::iterator p2n = proj2node.begin(), p2nEnd;
const double minProj = p2n->first;
const double projThreshold = 1.1 * uvLen;
if ( minProj > projThreshold )
{
// tgtNode is located so that it does not make faces with wrong orientation
return true;
}
edge._pos.resize(1);
edge._pos[0].SetCoord( tgtUV.X(), tgtUV.Y(), 0 );
// store most risky nodes in _simplices
p2nEnd = proj2node.lower_bound( projThreshold );
int nbSimpl = ( std::distance( p2n, p2nEnd ) + 1) / 2;
edge._simplices.resize( nbSimpl );
for ( int i = 0; i < nbSimpl; ++i )
{
edge._simplices[i]._nPrev = p2n->second;
if ( ++p2n != p2nEnd )
edge._simplices[i]._nNext = p2n->second;
}
// set UV of source node to target node
SMDS_FacePosition* pos = static_cast<SMDS_FacePosition*>( tgtNode->GetPosition() );
pos->SetUParameter( srcUV.X() );
pos->SetVParameter( srcUV.Y() );
}
else // _sWOL is TopAbs_EDGE
{
TopoDS_Edge E = TopoDS::Edge( edge._sWOL);
SMESHDS_SubMesh* edgeSM = getMeshDS()->MeshElements( E );
if ( !edgeSM || edgeSM->NbElements() == 0 )
return error(SMESH_Comment("Not meshed EDGE ") << getMeshDS()->ShapeToIndex( E ));
const SMDS_MeshNode* n2 = 0;
SMDS_ElemIteratorPtr eIt = srcNode->GetInverseElementIterator(SMDSAbs_Edge);
while ( eIt->more() && !n2 )
{
const SMDS_MeshElement* e = eIt->next();
if ( !edgeSM->Contains(e)) continue;
n2 = e->GetNode( 0 );
if ( n2 == srcNode ) n2 = e->GetNode( 1 );
}
if ( !n2 )
return error(SMESH_Comment("Wrongly meshed EDGE ") << getMeshDS()->ShapeToIndex( E ));
double uSrc = helper.GetNodeU( E, srcNode, n2 );
double uTgt = helper.GetNodeU( E, tgtNode, srcNode );
double u2 = helper.GetNodeU( E, n2, srcNode );
if ( fabs( uSrc-uTgt ) < 0.99 * fabs( uSrc-u2 ))
{
// tgtNode is located so that it does not make faces with wrong orientation
return true;
}
edge._pos.resize(1);
edge._pos[0].SetCoord( U_TGT, uTgt );
edge._pos[0].SetCoord( U_SRC, uSrc );
edge._pos[0].SetCoord( LEN_TGT, fabs( uSrc-uTgt ));
edge._simplices.resize( 1 );
edge._simplices[0]._nPrev = n2;
// set UV of source node to target node
SMDS_EdgePosition* pos = static_cast<SMDS_EdgePosition*>( tgtNode->GetPosition() );
pos->SetUParameter( uSrc );
}
return true;
//================================================================================
//================================================================================
// Compute UV to follow during shrinking
// const SMDS_MeshNode* srcNode = edge._nodes[0];
// const SMDS_MeshNode* tgtNode = edge._nodes.back();
// gp_XY srcUV = helper.GetNodeUV( F, srcNode );
// gp_XY tgtUV = helper.GetNodeUV( F, tgtNode );
// gp_Vec2d uvDir( srcUV, tgtUV );
// double uvLen = uvDir.Magnitude();
// uvDir /= uvLen;
// // Select shrinking step such that not to make faces with wrong orientation.
// // IMPORTANT to have src nodes NOT yet REPLACED by tgt nodes in shrinked faces
// const double minStepSize = uvLen / 20;
// double stepSize = uvLen;
// SMDS_ElemIteratorPtr fIt = srcNode->GetInverseElementIterator(SMDSAbs_Face);
// while ( fIt->more() )
// {
// const SMDS_MeshElement* f = fIt->next();
// if ( !faceSubMesh->Contains( f )) continue;
// const int nbNodes = f->NbCornerNodes();
// for ( int i = 0; i < nbNodes; ++i )
// {
// const SMDS_MeshNode* n = f->GetNode(i);
// if ( n->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE || n == srcNode)
// continue;
// gp_XY uv = helper.GetNodeUV( F, n );
// gp_Vec2d uvDirN( srcUV, uv );
// double proj = uvDirN * uvDir;
// if ( proj < stepSize && proj > minStepSize )
// stepSize = proj;
// }
// }
// stepSize *= 0.8;
// const int nbSteps = ceil( uvLen / stepSize );
// gp_XYZ srcUV0( srcUV.X(), srcUV.Y(), 0 );
// gp_XYZ tgtUV0( tgtUV.X(), tgtUV.Y(), 0 );
// edge._pos.resize( nbSteps );
// edge._pos[0] = tgtUV0;
// for ( int i = 1; i < nbSteps; ++i )
// {
// double r = i / double( nbSteps );
// edge._pos[i] = (1-r) * tgtUV0 + r * srcUV0;
// }
// return true;
}
| bool _ViscousBuilder::refine | ( | _SolidData & | data | ) | [private] |
Create layers of prisms.
Definition at line 3100 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._edges, VISCOUS._SolidData._hyp, VISCOUS._SolidData._index, VISCOUS._SolidData._n2eMap, VISCOUS._LayerEdge._nodes, VISCOUS._LayerEdge._pos, VISCOUS._SolidData._solid, VISCOUS._LayerEdge._sWOL, SMESH_MesherHelper.AddNode(), SMESH_MesherHelper.AddVolume(), SMESH_test.edge, SMESHDS_SubMesh.GetElements(), SMESH_MesherHelper.GetNodeU(), SMESH_MesherHelper.GetNodeUV(), SMESH_MesherHelper.GetSubShapeID(), Handle(), SMDS_MeshElement.NbCornerNodes(), SMDS_MeshElement.nodesIterator(), SMESH_MesherHelper.SetElementsOnShape(), SMESH_MesherHelper.SetSubShape(), SMDS_MeshNode.setXYZ(), and SMDS_MeshNode.X().
{
SMESH_MesherHelper helper( *_mesh );
helper.SetSubShape( data._solid );
helper.SetElementsOnShape(false);
Handle(Geom_Curve) curve;
Handle(Geom_Surface) surface;
TopoDS_Edge geomEdge;
TopoDS_Face geomFace;
TopLoc_Location loc;
double f,l, u/*, distXYZ[4]*/;
gp_XY uv;
bool isOnEdge;
for ( unsigned i = 0; i < data._edges.size(); ++i )
{
_LayerEdge& edge = *data._edges[i];
// get accumulated length of segments
vector< double > segLen( edge._pos.size() );
segLen[0] = 0.0;
for ( unsigned j = 1; j < edge._pos.size(); ++j )
segLen[j] = segLen[j-1] + (edge._pos[j-1] - edge._pos[j] ).Modulus();
// allocate memory for new nodes if it is not yet refined
const SMDS_MeshNode* tgtNode = edge._nodes.back();
if ( edge._nodes.size() == 2 )
{
edge._nodes.resize( data._hyp->GetNumberLayers() + 1, 0 );
edge._nodes[1] = 0;
edge._nodes.back() = tgtNode;
}
if ( !edge._sWOL.IsNull() )
{
isOnEdge = ( edge._sWOL.ShapeType() == TopAbs_EDGE );
// restore position of the last node
// gp_Pnt p;
if ( isOnEdge )
{
geomEdge = TopoDS::Edge( edge._sWOL );
curve = BRep_Tool::Curve( geomEdge, loc, f,l);
// double u = helper.GetNodeU( tgtNode );
// p = curve->Value( u );
}
else
{
geomFace = TopoDS::Face( edge._sWOL );
surface = BRep_Tool::Surface( geomFace, loc );
// gp_XY uv = helper.GetNodeUV( tgtNode );
// p = surface->Value( uv.X(), uv.Y() );
}
// p.Transform( loc );
// const_cast< SMDS_MeshNode* >( tgtNode )->setXYZ( p.X(), p.Y(), p.Z() );
}
// calculate height of the first layer
double h0;
const double T = segLen.back(); //data._hyp.GetTotalThickness();
const double f = data._hyp->GetStretchFactor();
const int N = data._hyp->GetNumberLayers();
const double fPowN = pow( f, N );
if ( fPowN - 1 <= numeric_limits<double>::min() )
h0 = T / N;
else
h0 = T * ( f - 1 )/( fPowN - 1 );
const double zeroLen = std::numeric_limits<double>::min();
// create intermediate nodes
double hSum = 0, hi = h0/f;
unsigned iSeg = 1;
for ( unsigned iStep = 1; iStep < edge._nodes.size(); ++iStep )
{
// compute an intermediate position
hi *= f;
hSum += hi;
while ( hSum > segLen[iSeg] && iSeg < segLen.size()-1)
++iSeg;
int iPrevSeg = iSeg-1;
while ( fabs( segLen[iPrevSeg] - segLen[iSeg]) <= zeroLen && iPrevSeg > 0 )
--iPrevSeg;
double r = ( segLen[iSeg] - hSum ) / ( segLen[iSeg] - segLen[iPrevSeg] );
gp_Pnt pos = r * edge._pos[iPrevSeg] + (1-r) * edge._pos[iSeg];
SMDS_MeshNode*& node = const_cast< SMDS_MeshNode*& >(edge._nodes[ iStep ]);
if ( !edge._sWOL.IsNull() )
{
// compute XYZ by parameters <pos>
if ( isOnEdge )
{
u = pos.X();
pos = curve->Value( u ).Transformed(loc);
}
else
{
uv.SetCoord( pos.X(), pos.Y() );
pos = surface->Value( pos.X(), pos.Y() ).Transformed(loc);
}
}
// create or update the node
if ( !node )
{
node = helper.AddNode( pos.X(), pos.Y(), pos.Z());
if ( !edge._sWOL.IsNull() )
{
if ( isOnEdge )
getMeshDS()->SetNodeOnEdge( node, geomEdge, u );
else
getMeshDS()->SetNodeOnFace( node, geomFace, uv.X(), uv.Y() );
}
else
{
getMeshDS()->SetNodeInVolume( node, helper.GetSubShapeID() );
}
}
else
{
if ( !edge._sWOL.IsNull() )
{
// make average pos from new and current parameters
if ( isOnEdge )
{
u = 0.5 * ( u + helper.GetNodeU( geomEdge, node ));
pos = curve->Value( u ).Transformed(loc);
}
else
{
uv = 0.5 * ( uv + helper.GetNodeUV( geomFace, node ));
pos = surface->Value( uv.X(), uv.Y()).Transformed(loc);
}
}
node->setXYZ( pos.X(), pos.Y(), pos.Z() );
}
}
}
// TODO: make quadratic prisms and polyhedrons(?)
helper.SetElementsOnShape(true);
TopExp_Explorer exp( data._solid, TopAbs_FACE );
for ( ; exp.More(); exp.Next() )
{
if ( _ignoreShapeIds.count( getMeshDS()->ShapeToIndex( exp.Current() )))
continue;
SMESHDS_SubMesh* fSubM = getMeshDS()->MeshElements( exp.Current() );
SMDS_ElemIteratorPtr fIt = fSubM->GetElements();
vector< vector<const SMDS_MeshNode*>* > nnVec;
while ( fIt->more() )
{
const SMDS_MeshElement* face = fIt->next();
int nbNodes = face->NbCornerNodes();
nnVec.resize( nbNodes );
SMDS_ElemIteratorPtr nIt = face->nodesIterator();
for ( int iN = 0; iN < nbNodes; ++iN )
{
const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nIt->next() );
nnVec[ iN ] = & data._n2eMap[ n ]->_nodes;
}
int nbZ = nnVec[0]->size();
switch ( nbNodes )
{
case 3:
for ( int iZ = 1; iZ < nbZ; ++iZ )
helper.AddVolume( (*nnVec[0])[iZ-1], (*nnVec[1])[iZ-1], (*nnVec[2])[iZ-1],
(*nnVec[0])[iZ], (*nnVec[1])[iZ], (*nnVec[2])[iZ]);
break;
case 4:
for ( int iZ = 1; iZ < nbZ; ++iZ )
helper.AddVolume( (*nnVec[0])[iZ-1], (*nnVec[1])[iZ-1],
(*nnVec[2])[iZ-1], (*nnVec[3])[iZ-1],
(*nnVec[0])[iZ], (*nnVec[1])[iZ],
(*nnVec[2])[iZ], (*nnVec[3])[iZ]);
break;
default:
return error("Not supported type of element", data._index);
}
}
}
return true;
}
| void _ViscousBuilder::RestoreListeners | ( | ) |
At study restoration, restore event listeners used to clear an inferior dim sub-mesh modified by viscous layers.
Definition at line 817 of file StdMeshers_ViscousLayers.cxx.
{
// TODO
}
| bool _ViscousBuilder::setEdgeData | ( | _LayerEdge & | edge, |
| const set< TGeomID > & | subIds, | ||
| SMESH_MesherHelper & | helper, | ||
| _SolidData & | data | ||
| ) | [private] |
Set data of _LayerEdge needed for smoothing.
| subIds | - ids of sub-shapes of a SOLID to take into account faces from |
Definition at line 1476 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._LayerEdge._2neibors, VISCOUS._LayerEdge._cosin, VISCOUS._LayerEdge._curvature, VISCOUS._SolidData._index, VISCOUS._LayerEdge._len, VISCOUS._2NearEdges._nodes, VISCOUS._LayerEdge._nodes, VISCOUS._LayerEdge._normal, VISCOUS._LayerEdge._pos, VISCOUS._SolidData._shrinkShape2Shape, VISCOUS._LayerEdge._simplices, VISCOUS._SolidData._solid, VISCOUS._LayerEdge._sWOL, SMESH_demo_hexa2_upd.angle, SMDS_MeshElement.GetID(), SMDS_MeshNode.GetInverseElementIterator(), SMESH_MesherHelper.GetNodeU(), SMESH_MesherHelper.GetNodeUV(), SMDS_MeshNode.GetPosition(), SMDS_MeshElement.getshapeId(), SMESH_MesherHelper.GetSubShapeByNode(), SMESH_MesherHelper.GetSubShapeOri(), SMDS_Position.GetTypeOfPosition(), Handle(), VISCOUS._LayerEdge.SetCosin(), VISCOUS._LayerEdge.SetDataByNeighbors(), SMDS_TOP_EDGE, SMDS_TOP_FACE, SMDS_TOP_VERTEX, SMDSAbs_Face, and SMDS_MeshNode.X().
{
SMESH_MeshEditor editor(_mesh);
const SMDS_MeshNode* node = edge._nodes[0]; // source node
SMDS_TypeOfPosition posType = node->GetPosition()->GetTypeOfPosition();
edge._len = 0;
edge._2neibors = 0;
edge._curvature = 0;
// --------------------------
// Compute _normal and _cosin
// --------------------------
edge._cosin = 0;
edge._normal.SetCoord(0,0,0);
int totalNbFaces = 0;
gp_Pnt p;
gp_Vec du, dv, geomNorm;
bool normOK = true;
TGeomID shapeInd = node->getshapeId();
map< TGeomID, TopoDS_Shape >::const_iterator s2s = data._shrinkShape2Shape.find( shapeInd );
bool onShrinkShape ( s2s != data._shrinkShape2Shape.end() );
TopoDS_Shape vertEdge;
if ( onShrinkShape ) // one of faces the node is on has no layers
{
vertEdge = getMeshDS()->IndexToShape( s2s->first ); // vertex or edge
if ( s2s->second.ShapeType() == TopAbs_EDGE )
{
// inflate from VERTEX along EDGE
edge._normal = getEdgeDir( TopoDS::Edge( s2s->second ), TopoDS::Vertex( vertEdge ));
}
else if ( vertEdge.ShapeType() == TopAbs_VERTEX )
{
// inflate from VERTEX along FACE
edge._normal = getFaceDir( TopoDS::Face( s2s->second ), TopoDS::Vertex( vertEdge ),
node, helper, normOK, &edge._cosin);
}
else
{
// inflate from EDGE along FACE
edge._normal = getFaceDir( TopoDS::Face( s2s->second ), TopoDS::Edge( vertEdge ),
node, helper, normOK);
}
}
else // layers are on all faces of SOLID the node is on
{
// find indices of geom faces the node lies on
set<TGeomID> faceIds;
if ( posType == SMDS_TOP_FACE )
{
faceIds.insert( node->getshapeId() );
}
else
{
SMDS_ElemIteratorPtr fIt = node->GetInverseElementIterator(SMDSAbs_Face);
while ( fIt->more() )
faceIds.insert( editor.FindShape(fIt->next()));
}
set<TGeomID>::iterator id = faceIds.begin();
TopoDS_Face F;
for ( ; id != faceIds.end(); ++id )
{
const TopoDS_Shape& s = getMeshDS()->IndexToShape( *id );
if ( s.IsNull() || s.ShapeType() != TopAbs_FACE || !subIds.count( *id ))
continue;
totalNbFaces++;
//nbLayerFaces += subIds.count( *id );
F = TopoDS::Face( s );
gp_XY uv = helper.GetNodeUV( F, node, 0, &normOK );
Handle(Geom_Surface) surface = BRep_Tool::Surface( F );
surface->D1( uv.X(),uv.Y(), p, du,dv );
geomNorm = du ^ dv;
double size2 = geomNorm.SquareMagnitude();
if ( size2 > numeric_limits<double>::min() )
geomNorm /= sqrt( size2 );
else
normOK = false;
if ( helper.GetSubShapeOri( data._solid, F ) != TopAbs_REVERSED )
geomNorm.Reverse();
edge._normal += geomNorm.XYZ();
}
if ( totalNbFaces == 0 )
return error(SMESH_Comment("Can't get normal to node ") << node->GetID(), data._index);
edge._normal /= totalNbFaces;
switch ( posType )
{
case SMDS_TOP_FACE:
edge._cosin = 0; break;
case SMDS_TOP_EDGE: {
TopoDS_Edge E = TopoDS::Edge( helper.GetSubShapeByNode( node, getMeshDS()));
gp_Vec inFaceDir = getFaceDir( F, E, node, helper, normOK);
double angle = inFaceDir.Angle( edge._normal ); // [0,PI]
edge._cosin = cos( angle );
//cout << "Cosin on EDGE " << edge._cosin << " node " << node->GetID() << endl;
break;
}
case SMDS_TOP_VERTEX: {
TopoDS_Vertex V = TopoDS::Vertex( helper.GetSubShapeByNode( node, getMeshDS()));
gp_Vec inFaceDir = getFaceDir( F, V, node, helper, normOK);
double angle = inFaceDir.Angle( edge._normal ); // [0,PI]
edge._cosin = cos( angle );
//cout << "Cosin on VERTEX " << edge._cosin << " node " << node->GetID() << endl;
break;
}
default:
return error(SMESH_Comment("Invalid shape position of node ")<<node, data._index);
}
}
double normSize = edge._normal.SquareModulus();
if ( normSize < numeric_limits<double>::min() )
return error(SMESH_Comment("Bad normal at node ")<< node->GetID(), data._index );
edge._normal /= sqrt( normSize );
// TODO: if ( !normOK ) then get normal by mesh faces
// Set the rest data
// --------------------
if ( onShrinkShape )
{
edge._sWOL = (*s2s).second;
SMDS_MeshNode* tgtNode = const_cast<SMDS_MeshNode*>( edge._nodes.back() );
if ( SMESHDS_SubMesh* sm = getMeshDS()->MeshElements( data._solid ))
sm->RemoveNode( tgtNode , /*isNodeDeleted=*/false );
// set initial position which is parameters on _sWOL in this case
if ( edge._sWOL.ShapeType() == TopAbs_EDGE )
{
double u = helper.GetNodeU( TopoDS::Edge( edge._sWOL ), node, 0, &normOK );
edge._pos.push_back( gp_XYZ( u, 0, 0));
getMeshDS()->SetNodeOnEdge( tgtNode, TopoDS::Edge( edge._sWOL ), u );
}
else // TopAbs_FACE
{
gp_XY uv = helper.GetNodeUV( TopoDS::Face( edge._sWOL ), node, 0, &normOK );
edge._pos.push_back( gp_XYZ( uv.X(), uv.Y(), 0));
getMeshDS()->SetNodeOnFace( tgtNode, TopoDS::Face( edge._sWOL ), uv.X(), uv.Y() );
}
}
else
{
edge._pos.push_back( SMESH_TNodeXYZ( node ));
if ( posType == SMDS_TOP_FACE )
{
getSimplices( node, edge._simplices, _ignoreShapeIds, &data );
double avgNormProj = 0, avgLen = 0;
for ( unsigned i = 0; i < edge._simplices.size(); ++i )
{
gp_XYZ vec = edge._pos.back() - SMESH_TNodeXYZ( edge._simplices[i]._nPrev );
avgNormProj += edge._normal * vec;
avgLen += vec.Modulus();
}
avgNormProj /= edge._simplices.size();
avgLen /= edge._simplices.size();
edge._curvature = _Curvature::New( avgNormProj, avgLen );
}
}
// Set neighbour nodes for a _LayerEdge based on EDGE
if ( posType == SMDS_TOP_EDGE /*||
( onShrinkShape && posType == SMDS_TOP_VERTEX && fabs( edge._cosin ) < 1e-10 )*/)
{
edge._2neibors = new _2NearEdges;
// target node instead of source ones will be set later
if ( ! findNeiborsOnEdge( &edge,
edge._2neibors->_nodes[0],
edge._2neibors->_nodes[1],
data))
return false;
edge.SetDataByNeighbors( edge._2neibors->_nodes[0],
edge._2neibors->_nodes[1],
helper);
}
edge.SetCosin( edge._cosin ); // to update edge._lenFactor
return true;
}
| bool _ViscousBuilder::shrink | ( | ) | [private] |
Shrink 2D mesh on faces to let space for inflated layers.
Definition at line 3289 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._n2eMap, VISCOUS._LayerEdge._nodes, VISCOUS._SolidData._proxyMesh, VISCOUS._SolidData._reversedFaceIds, VISCOUS._SolidData._shrinkShape2Shape, VISCOUS._SolidData._solid, VISCOUS._LayerEdge._sWOL, VISCOUS._Shrinker1D.AddEdge(), SMESH_ProxyMesh.SubMesh.AddElement(), SMESHDS_Mesh.ChangeElementNodes(), SMESHDS_SubMesh.Contains(), SMESH_test.edge, SMESHDS_SubMesh.GetElements(), SMESH_ProxyMesh.SubMesh.GetElements(), VISCOUS._MeshOfSolid.getFaceSubM(), SMDS_MeshNode.GetInverseElementIterator(), SMESH_MesherHelper.GetMeshDS(), SMESHDS_SubMesh.GetNodes(), SMESH_MesherHelper.GetNodeUV(), Handle(), SMDS_MeshNode.NbInverseElements(), SMDS_MeshElement.NbNodes(), SMESHDS_SubMesh.NbNodes(), SMESH_AdvancedEditor.nodes, SMDS_MeshElement.nodesIterator(), VISCOUS._Shrinker1D.RestoreParams(), reverse(), SMESH_MesherHelper.SetSubShape(), and SMDSAbs_Face.
{
// make map of (ids of FACEs to shrink mesh on) to (_SolidData containing _LayerEdge's
// inflated along FACE or EDGE)
map< TGeomID, _SolidData* > f2sdMap;
for ( unsigned i = 0 ; i < _sdVec.size(); ++i )
{
_SolidData& data = _sdVec[i];
TopTools_MapOfShape FFMap;
map< TGeomID, TopoDS_Shape >::iterator s2s = data._shrinkShape2Shape.begin();
for (; s2s != data._shrinkShape2Shape.end(); ++s2s )
if ( s2s->second.ShapeType() == TopAbs_FACE )
{
f2sdMap.insert( make_pair( getMeshDS()->ShapeToIndex( s2s->second ), &data ));
if ( FFMap.Add( (*s2s).second ))
// Put mesh faces on the shrinked FACE to the proxy sub-mesh to avoid
// usage of mesh faces made in addBoundaryElements() by the 3D algo or
// by StdMeshers_QuadToTriaAdaptor
if ( SMESHDS_SubMesh* smDS = getMeshDS()->MeshElements( s2s->second ))
{
SMESH_ProxyMesh::SubMesh* proxySub =
data._proxyMesh->getFaceSubM( TopoDS::Face( s2s->second ), /*create=*/true);
SMDS_ElemIteratorPtr fIt = smDS->GetElements();
while ( fIt->more() )
proxySub->AddElement( fIt->next() );
}
}
}
SMESH_MesherHelper helper( *_mesh );
// EDGE's to shrink
map< int, _Shrinker1D > e2shrMap;
// loop on FACES to srink mesh on
map< TGeomID, _SolidData* >::iterator f2sd = f2sdMap.begin();
for ( ; f2sd != f2sdMap.end(); ++f2sd )
{
_SolidData& data = *f2sd->second;
TNode2Edge& n2eMap = data._n2eMap;
const TopoDS_Face& F = TopoDS::Face( getMeshDS()->IndexToShape( f2sd->first ));
const bool reverse = ( data._reversedFaceIds.count( f2sd->first ));
Handle(Geom_Surface) surface = BRep_Tool::Surface(F);
SMESH_subMesh* sm = _mesh->GetSubMesh( F );
SMESHDS_SubMesh* smDS = sm->GetSubMeshDS();
helper.SetSubShape(F);
// ===========================
// Prepare data for shrinking
// ===========================
// Collect nodes to smooth as src nodes are not yet replaced by tgt ones
// and thus all nodes on FACE connected to 2d elements are to be smoothed
vector < const SMDS_MeshNode* > smoothNodes;
{
SMDS_NodeIteratorPtr nIt = smDS->GetNodes();
while ( nIt->more() )
{
const SMDS_MeshNode* n = nIt->next();
if ( n->NbInverseElements( SMDSAbs_Face ) > 0 )
smoothNodes.push_back( n );
}
}
// Find out face orientation
double refSign = 1;
const set<TGeomID> ignoreShapes;
if ( !smoothNodes.empty() )
{
gp_XY uv = helper.GetNodeUV( F, smoothNodes[0] );
vector<_Simplex> simplices;
getSimplices( smoothNodes[0], simplices, ignoreShapes );
if ( simplices[0].IsForward(uv, F, helper,refSign) != (!reverse))
refSign = -1;
}
// Find _LayerEdge's inflated along F
vector< _LayerEdge* > lEdges;
{
SMESH_subMeshIteratorPtr subIt =
sm->getDependsOnIterator(/*includeSelf=*/false, /*complexShapeFirst=*/false);
while ( subIt->more() )
{
SMESH_subMesh* sub = subIt->next();
SMESHDS_SubMesh* subDS = sub->GetSubMeshDS();
if ( subDS->NbNodes() == 0 || !n2eMap.count( subDS->GetNodes()->next() ))
continue;
SMDS_NodeIteratorPtr nIt = subDS->GetNodes();
while ( nIt->more() )
{
_LayerEdge* edge = n2eMap[ nIt->next() ];
lEdges.push_back( edge );
prepareEdgeToShrink( *edge, F, helper, smDS );
}
}
}
// Replace source nodes by target nodes in mesh faces to shrink
const SMDS_MeshNode* nodes[20];
for ( unsigned i = 0; i < lEdges.size(); ++i )
{
_LayerEdge& edge = *lEdges[i];
const SMDS_MeshNode* srcNode = edge._nodes[0];
const SMDS_MeshNode* tgtNode = edge._nodes.back();
SMDS_ElemIteratorPtr fIt = srcNode->GetInverseElementIterator(SMDSAbs_Face);
while ( fIt->more() )
{
const SMDS_MeshElement* f = fIt->next();
if ( !smDS->Contains( f ))
continue;
SMDS_ElemIteratorPtr nIt = f->nodesIterator();
for ( int iN = 0; iN < f->NbNodes(); ++iN )
{
const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nIt->next() );
nodes[iN] = ( n == srcNode ? tgtNode : n );
}
helper.GetMeshDS()->ChangeElementNodes( f, nodes, f->NbNodes() );
}
}
// Create _SmoothNode's on face F
vector< _SmoothNode > nodesToSmooth( smoothNodes.size() );
{
dumpFunction(SMESH_Comment("beforeShrinkFace")<<f2sd->first); // debug
for ( unsigned i = 0; i < smoothNodes.size(); ++i )
{
const SMDS_MeshNode* n = smoothNodes[i];
nodesToSmooth[ i ]._node = n;
// src nodes must be replaced by tgt nodes to have tgt nodes in _simplices
getSimplices( n, nodesToSmooth[ i ]._simplices, ignoreShapes );
dumpMove( n );
}
dumpFunctionEnd();
}
//if ( nodesToSmooth.empty() ) continue;
// Find EDGE's to shrink
set< _Shrinker1D* > eShri1D;
{
for ( unsigned i = 0; i < lEdges.size(); ++i )
{
_LayerEdge* edge = lEdges[i];
if ( edge->_sWOL.ShapeType() == TopAbs_EDGE )
{
TGeomID edgeIndex = getMeshDS()->ShapeToIndex( edge->_sWOL );
_Shrinker1D& srinker = e2shrMap[ edgeIndex ];
eShri1D.insert( & srinker );
srinker.AddEdge( edge, helper );
// restore params of nodes on EGDE if the EDGE has been already
// srinked while srinking another FACE
srinker.RestoreParams();
}
}
}
// ==================
// Perform shrinking
// ==================
bool shrinked = true;
int badNb, shriStep=0, smooStep=0;
while ( shrinked )
{
// Move boundary nodes (actually just set new UV)
// -----------------------------------------------
dumpFunction(SMESH_Comment("moveBoundaryOnF")<<f2sd->first<<"_st"<<shriStep++ ); // debug
shrinked = false;
for ( unsigned i = 0; i < lEdges.size(); ++i )
{
shrinked |= lEdges[i]->SetNewLength2d( surface,F,helper );
}
dumpFunctionEnd();
if ( !shrinked )
break;
// Move nodes on EDGE's
set< _Shrinker1D* >::iterator shr = eShri1D.begin();
for ( ; shr != eShri1D.end(); ++shr )
(*shr)->Compute( /*set3D=*/false, helper );
// Smoothing in 2D
// -----------------
int nbNoImpSteps = 0;
bool moved = true;
badNb = 1;
while (( nbNoImpSteps < 5 && badNb > 0) && moved)
{
dumpFunction(SMESH_Comment("shrinkFace")<<f2sd->first<<"_st"<<++smooStep); // debug
int oldBadNb = badNb;
badNb = 0;
moved = false;
for ( unsigned i = 0; i < nodesToSmooth.size(); ++i )
{
moved |= nodesToSmooth[i].Smooth( badNb,surface,helper,refSign,/*set3D=*/false );
}
if ( badNb < oldBadNb )
nbNoImpSteps = 0;
else
nbNoImpSteps++;
dumpFunctionEnd();
}
if ( badNb > 0 )
return error(SMESH_Comment("Can't shrink 2D mesh on face ") << f2sd->first );
}
// No wrongly shaped faces remain; final smooth. Set node XYZ.
// First, find out a needed quality of smoothing (high for quadrangles only)
bool highQuality;
{
const bool hasTria = _mesh->NbTriangles(), hasQuad = _mesh->NbQuadrangles();
if ( hasTria != hasQuad )
{
highQuality = hasQuad;
}
else
{
set<int> nbNodesSet;
SMDS_ElemIteratorPtr fIt = smDS->GetElements();
while ( fIt->more() && nbNodesSet.size() < 2 )
nbNodesSet.insert( fIt->next()->NbCornerNodes() );
highQuality = ( *nbNodesSet.begin() == 4 );
}
}
for ( int st = highQuality ? 8 : 3; st; --st )
{
dumpFunction(SMESH_Comment("shrinkFace")<<f2sd->first<<"_st"<<++smooStep); // debug
for ( unsigned i = 0; i < nodesToSmooth.size(); ++i )
nodesToSmooth[i].Smooth( badNb,surface,helper,refSign,/*set3D=*/st==1 );
dumpFunctionEnd();
}
// Set an event listener to clear FACE sub-mesh together with SOLID sub-mesh
_SrinkShapeListener::ToClearSubMeshWithSolid( sm, data._solid );
}// loop on FACES to srink mesh on
// Replace source nodes by target nodes in shrinked mesh edges
map< int, _Shrinker1D >::iterator e2shr = e2shrMap.begin();
for ( ; e2shr != e2shrMap.end(); ++e2shr )
e2shr->second.SwapSrcTgtNodes( getMeshDS() );
return true;
}
| bool _ViscousBuilder::smoothAnalyticEdge | ( | _SolidData & | data, |
| const int | iFrom, | ||
| const int | iTo, | ||
| Handle(Geom_Surface)& | surface, | ||
| const TopoDS_Face & | F, | ||
| SMESH_MesherHelper & | helper | ||
| ) | [private] |
smooth _LayerEdge's on a staight EDGE or circular EDGE
Definition at line 2291 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._edges, PAL_MESH_043_3D.circle, SMESH.DownCast(), SMESH_MesherHelper.GetMeshDS(), SMESH_MesherHelper.GetNodeUV(), SMDS_MeshNode.GetPosition(), SMESH_MesherHelper.GetSubShapeByNode(), Handle(), SMESH_fixation.p0, PAL_MESH_041_mesh.p1, PI, ex24_cylinder.radius, SMDS_FacePosition.SetUParameter(), SMDS_FacePosition.SetVParameter(), and SMDS_MeshNode.setXYZ().
{
TopoDS_Shape S = helper.GetSubShapeByNode( data._edges[ iFrom ]->_nodes[0],
helper.GetMeshDS());
TopoDS_Edge E = TopoDS::Edge( S );
Handle(Geom_Curve) curve = data.CurveForSmooth( E, iFrom, iTo, surface, F, helper );
if ( curve.IsNull() ) return false;
// compute a relative length of segments
vector< double > len( iTo-iFrom+1 );
{
double curLen, prevLen = len[0] = 1.0;
for ( int i = iFrom; i < iTo; ++i )
{
curLen = prevLen * data._edges[i]->_2neibors->_wgt[0] / data._edges[i]->_2neibors->_wgt[1];
len[i-iFrom+1] = len[i-iFrom] + curLen;
prevLen = curLen;
}
}
if ( curve->IsKind( STANDARD_TYPE( Geom_Line )))
{
if ( F.IsNull() ) // 3D
{
SMESH_TNodeXYZ p0( data._edges[iFrom]->_2neibors->_nodes[0]);
SMESH_TNodeXYZ p1( data._edges[iTo-1]->_2neibors->_nodes[1]);
for ( int i = iFrom; i < iTo; ++i )
{
double r = len[i-iFrom] / len.back();
gp_XYZ newPos = p0 * ( 1. - r ) + p1 * r;
data._edges[i]->_pos.back() = newPos;
SMDS_MeshNode* tgtNode = const_cast<SMDS_MeshNode*>( data._edges[i]->_nodes.back() );
tgtNode->setXYZ( newPos.X(), newPos.Y(), newPos.Z() );
}
}
else
{
gp_XY uv0 = helper.GetNodeUV( F, data._edges[iFrom]->_2neibors->_nodes[0]);
gp_XY uv1 = helper.GetNodeUV( F, data._edges[iTo-1]->_2neibors->_nodes[1]);
for ( int i = iFrom; i < iTo; ++i )
{
double r = len[i-iFrom] / len.back();
gp_XY newUV = uv0 * ( 1. - r ) + uv1 * r;
data._edges[i]->_pos.back().SetCoord( newUV.X(), newUV.Y(), 0 );
gp_Pnt newPos = surface->Value( newUV.X(), newUV.Y() );
SMDS_MeshNode* tgtNode = const_cast<SMDS_MeshNode*>( data._edges[i]->_nodes.back() );
tgtNode->setXYZ( newPos.X(), newPos.Y(), newPos.Z() );
SMDS_FacePosition* pos = static_cast<SMDS_FacePosition*>( tgtNode->GetPosition() );
pos->SetUParameter( newUV.X() );
pos->SetVParameter( newUV.Y() );
}
}
return true;
}
if ( curve->IsKind( STANDARD_TYPE( Geom_Circle )))
{
Handle(Geom_Circle) circle = Handle(Geom_Circle)::DownCast( curve );
gp_Pnt center3D = circle->Location();
if ( F.IsNull() ) // 3D
{
return false; // TODO ???
}
else // 2D
{
const gp_XY center( center3D.X(), center3D.Y() );
gp_XY uv0 = helper.GetNodeUV( F, data._edges[iFrom]->_2neibors->_nodes[0]);
gp_XY uvM = helper.GetNodeUV( F, data._edges[iFrom]->_nodes.back());
gp_XY uv1 = helper.GetNodeUV( F, data._edges[iTo-1]->_2neibors->_nodes[1]);
gp_Vec2d vec0( center, uv0 );
gp_Vec2d vecM( center, uvM);
gp_Vec2d vec1( center, uv1 );
double uLast = vec0.Angle( vec1 ); // -PI - +PI
double uMidl = vec0.Angle( vecM );
if ( uLast < 0 ) uLast += 2*PI; // 0.0 - 2*PI
if ( uMidl < 0 ) uMidl += 2*PI;
const bool sense = ( uMidl < uLast );
const double radius = 0.5 * ( vec0.Magnitude() + vec1.Magnitude() );
gp_Ax2d axis( center, vec0 );
gp_Circ2d circ ( axis, radius, sense );
for ( int i = iFrom; i < iTo; ++i )
{
double newU = uLast * len[i-iFrom] / len.back();
gp_Pnt2d newUV = ElCLib::Value( newU, circ );
data._edges[i]->_pos.back().SetCoord( newUV.X(), newUV.Y(), 0 );
gp_Pnt newPos = surface->Value( newUV.X(), newUV.Y() );
SMDS_MeshNode* tgtNode = const_cast<SMDS_MeshNode*>( data._edges[i]->_nodes.back() );
tgtNode->setXYZ( newPos.X(), newPos.Y(), newPos.Z() );
SMDS_FacePosition* pos = static_cast<SMDS_FacePosition*>( tgtNode->GetPosition() );
pos->SetUParameter( newUV.X() );
pos->SetVParameter( newUV.Y() );
}
}
return true;
}
return false;
}
| bool _ViscousBuilder::smoothAndCheck | ( | _SolidData & | data, |
| const int | nbSteps, | ||
| double & | distToIntersection | ||
| ) | [private] |
Improve quality of layer inner surface and check intersection.
Definition at line 2021 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._edges, VISCOUS._SolidData._endEdgeToSmooth, VISCOUS._SolidData._epsilon, VISCOUS._SolidData._index, VISCOUS._LayerEdge._nodes, VISCOUS._SolidData._proxyMesh, VISCOUS._LayerEdge._simplices, VISCOUS._SolidData._solid, SMDS_MeshElement.begin_nodes(), SMESH_test.edge, SMESH_ProxyMesh.GetFaces(), Handle(), and SMESH_MesherHelper.SetSubShape().
{
if ( data._endEdgeToSmooth.empty() )
return true; // no shapes needing smoothing
bool moved, improved;
SMESH_MesherHelper helper(*_mesh);
Handle(Geom_Surface) surface;
TopoDS_Face F;
int iBeg, iEnd = 0;
for ( unsigned iS = 0; iS < data._endEdgeToSmooth.size(); ++iS )
{
iBeg = iEnd;
iEnd = data._endEdgeToSmooth[ iS ];
if ( !data._edges[ iBeg ]->_sWOL.IsNull() &&
data._edges[ iBeg ]->_sWOL.ShapeType() == TopAbs_FACE )
{
if ( !F.IsSame( data._edges[ iBeg ]->_sWOL )) {
F = TopoDS::Face( data._edges[ iBeg ]->_sWOL );
helper.SetSubShape( F );
surface = BRep_Tool::Surface( F );
}
}
else
{
F.Nullify(); surface.Nullify();
}
TGeomID sInd = data._edges[ iBeg ]->_nodes[0]->getshapeId();
if ( data._edges[ iBeg ]->IsOnEdge() )
{ // try a simple solution on an analytic EDGE
if ( !smoothAnalyticEdge( data, iBeg, iEnd, surface, F, helper ))
{
dumpFunction(SMESH_Comment("smooth")<<data._index << "_Ed"<<sInd <<"_InfStep"<<nbSteps);
// smooth on EDGE's
int step = 0;
do {
moved = false;
for ( int i = iBeg; i < iEnd; ++i )
{
moved |= data._edges[i]->SmoothOnEdge(surface, F, helper);
}
dumpCmd( SMESH_Comment("# end step ")<<step);
}
while ( moved && step++ < 5 );
//cout << " NB STEPS: " << step << endl;
dumpFunctionEnd();
}
}
else
{
// smooth on FACE's
int step = 0, badNb = 0; moved = true;
while (( ++step <= 5 && moved ) || improved )
{
dumpFunction(SMESH_Comment("smooth")<<data._index<<"_Fa"<<sInd
<<"_InfStep"<<nbSteps<<"_"<<step); // debug
int oldBadNb = badNb;
badNb = 0;
moved = false;
for ( int i = iBeg; i < iEnd; ++i )
moved |= data._edges[i]->Smooth(badNb);
improved = ( badNb < oldBadNb );
dumpFunctionEnd();
}
if ( badNb > 0 )
{
#ifdef __myDEBUG
for ( int i = iBeg; i < iEnd; ++i )
{
_LayerEdge* edge = data._edges[i];
SMESH_TNodeXYZ tgtXYZ( edge->_nodes.back() );
for ( unsigned j = 0; j < edge->_simplices.size(); ++j )
if ( !edge->_simplices[j].IsForward( edge->_nodes[0], &tgtXYZ ))
{
cout << "Bad simplex ( " << edge->_nodes[0]->GetID()<< " "<< tgtXYZ._node->GetID()
<< " "<< edge->_simplices[j]._nPrev->GetID()
<< " "<< edge->_simplices[j]._nNext->GetID() << " )" << endl;
return false;
}
}
#endif
return false;
}
}
} // loop on shapes to smooth
// Check if the last segments of _LayerEdge intersects 2D elements;
// checked elements are either temporary faces or faces on surfaces w/o the layers
SMESH_MeshEditor editor( _mesh );
auto_ptr<SMESH_ElementSearcher> searcher
( editor.GetElementSearcher( data._proxyMesh->GetFaces( data._solid )) );
distToIntersection = Precision::Infinite();
double dist;
const SMDS_MeshElement* intFace = 0;
#ifdef __myDEBUG
const SMDS_MeshElement* closestFace = 0;
int iLE = 0;
#endif
for ( unsigned i = 0; i < data._edges.size(); ++i )
{
if ( data._edges[i]->FindIntersection( *searcher, dist, data._epsilon, &intFace ))
return false;
if ( distToIntersection > dist )
{
distToIntersection = dist;
#ifdef __myDEBUG
iLE = i;
closestFace = intFace;
#endif
}
}
#ifdef __myDEBUG
if ( closestFace )
{
SMDS_MeshElement::iterator nIt = closestFace->begin_nodes();
cout << "Shortest distance: _LayerEdge nodes: tgt " << data._edges[iLE]->_nodes.back()->GetID()
<< " src " << data._edges[iLE]->_nodes[0]->GetID()<< ", intersection with face ("
<< (*nIt++)->GetID()<<" "<< (*nIt++)->GetID()<<" "<< (*nIt++)->GetID()
<< ") distance = " << distToIntersection<< endl;
}
#endif
return true;
}
| bool _ViscousBuilder::sortEdges | ( | _SolidData & | data, |
| vector< vector< _LayerEdge * > > & | edgesByGeom | ||
| ) | [private] |
Separate shapes (and _LayerEdge's on them) to smooth from the rest ones.
Definition at line 1357 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._SolidData._edges, VISCOUS._SolidData._endEdgeToSmooth, VISCOUS._SolidData._n2eMap, SMESH_demo_hexa2_upd.angle, SMESH_AdvancedEditor.dir1, and SMESH_AdvancedEditor.dir2.
{
// Find shapes needing smoothing; such a shape has _LayerEdge._normal on it's
// boundry inclined at a sharp angle to the shape
list< TGeomID > shapesToSmooth;
SMESH_MesherHelper helper( *_mesh );
bool ok;
for ( unsigned iS = 0; iS < edgesByGeom.size(); ++iS )
{
vector<_LayerEdge*>& eS = edgesByGeom[iS];
if ( eS.empty() ) continue;
TopoDS_Shape S = getMeshDS()->IndexToShape( iS );
bool needSmooth = false;
switch ( S.ShapeType() )
{
case TopAbs_EDGE: {
bool isShrinkEdge = !eS[0]->_sWOL.IsNull();
for ( TopoDS_Iterator vIt( S ); vIt.More() && !needSmooth; vIt.Next() )
{
TGeomID iV = getMeshDS()->ShapeToIndex( vIt.Value() );
vector<_LayerEdge*>& eV = edgesByGeom[ iV ];
if ( eV.empty() ) continue;
double cosin = eV[0]->_cosin;
bool badCosin =
( !eV[0]->_sWOL.IsNull() && ( eV[0]->_sWOL.ShapeType() == TopAbs_EDGE || !isShrinkEdge));
if ( badCosin )
{
gp_Vec dir1, dir2;
if ( eV[0]->_sWOL.ShapeType() == TopAbs_EDGE )
dir1 = getEdgeDir( TopoDS::Edge( eV[0]->_sWOL ), TopoDS::Vertex( vIt.Value() ));
else
dir1 = getFaceDir( TopoDS::Face( eV[0]->_sWOL ), TopoDS::Vertex( vIt.Value() ),
eV[0]->_nodes[0], helper, ok);
dir2 = getEdgeDir( TopoDS::Edge( S ), TopoDS::Vertex( vIt.Value() ));
double angle = dir1.Angle( dir2 );
cosin = cos( angle );
}
needSmooth = ( cosin > 0.1 );
}
break;
}
case TopAbs_FACE: {
for ( TopExp_Explorer eExp( S, TopAbs_EDGE ); eExp.More() && !needSmooth; eExp.Next() )
{
TGeomID iE = getMeshDS()->ShapeToIndex( eExp.Current() );
vector<_LayerEdge*>& eE = edgesByGeom[ iE ];
if ( eE.empty() ) continue;
if ( eE[0]->_sWOL.IsNull() )
{
for ( unsigned i = 0; i < eE.size() && !needSmooth; ++i )
needSmooth = ( eE[i]->_cosin > 0.1 );
}
else
{
const TopoDS_Face& F1 = TopoDS::Face( S );
const TopoDS_Face& F2 = TopoDS::Face( eE[0]->_sWOL );
const TopoDS_Edge& E = TopoDS::Edge( eExp.Current() );
for ( unsigned i = 0; i < eE.size() && !needSmooth; ++i )
{
gp_Vec dir1 = getFaceDir( F1, E, eE[i]->_nodes[0], helper, ok );
gp_Vec dir2 = getFaceDir( F2, E, eE[i]->_nodes[0], helper, ok );
double angle = dir1.Angle( dir2 );
double cosin = cos( angle );
needSmooth = ( cosin > 0.1 );
}
}
}
break;
}
case TopAbs_VERTEX:
continue;
default:;
}
if ( needSmooth )
{
if ( S.ShapeType() == TopAbs_EDGE ) shapesToSmooth.push_front( iS );
else shapesToSmooth.push_back ( iS );
}
} // loop on edgesByGeom
data._edges.reserve( data._n2eMap.size() );
data._endEdgeToSmooth.clear();
// first we put _LayerEdge's on shapes to smooth
list< TGeomID >::iterator gIt = shapesToSmooth.begin();
for ( ; gIt != shapesToSmooth.end(); ++gIt )
{
vector<_LayerEdge*>& eVec = edgesByGeom[ *gIt ];
if ( eVec.empty() ) continue;
data._edges.insert( data._edges.end(), eVec.begin(), eVec.end() );
data._endEdgeToSmooth.push_back( data._edges.size() );
eVec.clear();
}
// then the rest _LayerEdge's
for ( unsigned iS = 0; iS < edgesByGeom.size(); ++iS )
{
vector<_LayerEdge*>& eVec = edgesByGeom[iS];
data._edges.insert( data._edges.end(), eVec.begin(), eVec.end() );
eVec.clear();
}
return ok;
}
| bool _ViscousBuilder::updateNormals | ( | _SolidData & | data, |
| SMESH_MesherHelper & | helper | ||
| ) | [private] |
Modify normals of _LayerEdge's on EDGE's to avoid intersection with _LayerEdge's on neighbor EDGE's.
Definition at line 2410 of file StdMeshers_ViscousLayers.cxx.
References VISCOUS._LayerEdge._2neibors, VISCOUS._LayerEdge._cosin, VISCOUS._2NearEdges._edges, VISCOUS._SolidData._edges, VISCOUS._SolidData._epsilon, VISCOUS._SolidData._index, VISCOUS.TmpMeshFaceOnEdge._le1, VISCOUS.TmpMeshFaceOnEdge._le2, VISCOUS._LayerEdge._len, VISCOUS.TmpMeshFace._nn, VISCOUS._2NearEdges._nodes, VISCOUS._LayerEdge._nodes, VISCOUS._LayerEdge._normal, VISCOUS._SolidData._solid, VISCOUS._SolidData._stepSize, VISCOUS._LayerEdge._sWOL, SMESH_demo_hexa2_upd.angle, SMESH_AdvancedEditor.dir1, SMESH_AdvancedEditor.dir2, PAL_MESH_041_mesh.e2, SMESH_test.edge, ex06_hole1boolean.edge1, ex06_hole1boolean.edge2, PAL_MESH_043_3D.face, VISCOUS._LayerEdge.FindIntersection(), SMESH_MesherHelper.GetAncestors(), SMESH_MesherHelper.GetSubShapeByNode(), VISCOUS._LayerEdge.InvalidateStep(), VISCOUS._LayerEdge.IsOnEdge(), SMESH_MesherHelper.IsSubShape(), SMESH_AdvancedEditor.n1, SMESH_AdvancedEditor.n2, SMESH_AdvancedEditor.nodes, VISCOUS._LayerEdge.SetCosin(), VISCOUS._LayerEdge.SetDataByNeighbors(), VISCOUS._LayerEdge.SetNewLength(), and SMDSAbs_Face.
{
// make temporary quadrangles got by extrusion of
// mesh edges along _LayerEdge._normal's
vector< const SMDS_MeshElement* > tmpFaces;
{
set< SMESH_TLink > extrudedLinks; // contains target nodes
vector< const SMDS_MeshNode*> nodes(4); // of a tmp mesh face
dumpFunction(SMESH_Comment("makeTmpFacesOnEdges")<<data._index);
for ( unsigned i = 0; i < data._edges.size(); ++i )
{
_LayerEdge* edge = data._edges[i];
if ( !edge->IsOnEdge() || !edge->_sWOL.IsNull() ) continue;
const SMDS_MeshNode* tgt1 = edge->_nodes.back();
for ( int j = 0; j < 2; ++j ) // loop on _2NearEdges
{
const SMDS_MeshNode* tgt2 = edge->_2neibors->_nodes[j];
pair< set< SMESH_TLink >::iterator, bool > link_isnew =
extrudedLinks.insert( SMESH_TLink( tgt1, tgt2 ));
if ( !link_isnew.second )
{
extrudedLinks.erase( link_isnew.first );
continue; // already extruded and will no more encounter
}
// look for a _LayerEdge containg tgt2
// _LayerEdge* neiborEdge = 0;
// unsigned di = 0; // check _edges[i+di] and _edges[i-di]
// while ( !neiborEdge && ++di <= data._edges.size() )
// {
// if ( i+di < data._edges.size() && data._edges[i+di]->_nodes.back() == tgt2 )
// neiborEdge = data._edges[i+di];
// else if ( di <= i && data._edges[i-di]->_nodes.back() == tgt2 )
// neiborEdge = data._edges[i-di];
// }
// if ( !neiborEdge )
// return error("updateNormals(): neighbor _LayerEdge not found", data._index);
_LayerEdge* neiborEdge = edge->_2neibors->_edges[j];
TmpMeshFaceOnEdge* f = new TmpMeshFaceOnEdge( edge, neiborEdge, --_tmpFaceID );
tmpFaces.push_back( f );
dumpCmd(SMESH_Comment("mesh.AddFace([ ")
<<f->_nn[0]->GetID()<<", "<<f->_nn[1]->GetID()<<", "
<<f->_nn[2]->GetID()<<", "<<f->_nn[3]->GetID()<<" ])");
}
}
dumpFunctionEnd();
}
// Check if _LayerEdge's based on EDGE's intersects tmpFaces.
// Perform two loops on _LayerEdge on EDGE's:
// 1) to find and fix intersection
// 2) to check that no new intersection appears as result of 1)
SMESH_MeshEditor editor( _mesh );
SMDS_ElemIteratorPtr fIt( new SMDS_ElementVectorIterator( tmpFaces.begin(),
tmpFaces.end()));
auto_ptr<SMESH_ElementSearcher> searcher ( editor.GetElementSearcher( fIt ));
// 1) Find intersections
double dist;
const SMDS_MeshElement* face;
typedef map< _LayerEdge*, set< _LayerEdge*, _LayerEdgeCmp >, _LayerEdgeCmp > TLEdge2LEdgeSet;
TLEdge2LEdgeSet edge2CloseEdge;
const double eps = data._epsilon * data._epsilon;
for ( unsigned i = 0; i < data._edges.size(); ++i )
{
_LayerEdge* edge = data._edges[i];
if ( !edge->IsOnEdge() || !edge->_sWOL.IsNull() ) continue;
if ( edge->FindIntersection( *searcher, dist, eps, &face ))
{
const TmpMeshFaceOnEdge* f = (const TmpMeshFaceOnEdge*) face;
set< _LayerEdge*, _LayerEdgeCmp > & ee = edge2CloseEdge[ edge ];
ee.insert( f->_le1 );
ee.insert( f->_le2 );
if ( f->_le1->IsOnEdge() && f->_le1->_sWOL.IsNull() )
edge2CloseEdge[ f->_le1 ].insert( edge );
if ( f->_le2->IsOnEdge() && f->_le2->_sWOL.IsNull() )
edge2CloseEdge[ f->_le2 ].insert( edge );
}
}
// Set _LayerEdge._normal
if ( !edge2CloseEdge.empty() )
{
dumpFunction(SMESH_Comment("updateNormals")<<data._index);
TLEdge2LEdgeSet::iterator e2ee = edge2CloseEdge.begin();
for ( ; e2ee != edge2CloseEdge.end(); ++e2ee )
{
_LayerEdge* edge1 = e2ee->first;
_LayerEdge* edge2 = 0;
set< _LayerEdge*, _LayerEdgeCmp >& ee = e2ee->second;
// find EDGEs the edges reside
TopoDS_Edge E1, E2;
TopoDS_Shape S = helper.GetSubShapeByNode( edge1->_nodes[0], getMeshDS() );
if ( S.ShapeType() != TopAbs_EDGE )
continue; // TODO: find EDGE by VERTEX
E1 = TopoDS::Edge( S );
set< _LayerEdge* >::iterator eIt = ee.begin();
while ( E2.IsNull() && eIt != ee.end())
{
_LayerEdge* e2 = *eIt++;
TopoDS_Shape S = helper.GetSubShapeByNode( e2->_nodes[0], getMeshDS() );
if ( S.ShapeType() == TopAbs_EDGE )
E2 = TopoDS::Edge( S ), edge2 = e2;
}
if ( E2.IsNull() ) continue; // TODO: find EDGE by VERTEX
// find 3 FACEs sharing 2 EDGEs
TopoDS_Face FF1[2], FF2[2];
PShapeIteratorPtr fIt = helper.GetAncestors(E1, *_mesh, TopAbs_FACE);
while ( fIt->more() && FF1[1].IsNull())
{
const TopoDS_Face *F = (const TopoDS_Face*) fIt->next();
if ( helper.IsSubShape( *F, data._solid))
FF1[ FF1[0].IsNull() ? 0 : 1 ] = *F;
}
fIt = helper.GetAncestors(E2, *_mesh, TopAbs_FACE);
while ( fIt->more() && FF2[1].IsNull())
{
const TopoDS_Face *F = (const TopoDS_Face*) fIt->next();
if ( helper.IsSubShape( *F, data._solid))
FF2[ FF2[0].IsNull() ? 0 : 1 ] = *F;
}
// exclude a FACE common to E1 and E2 (put it at [1] in FF* )
if ( FF1[0].IsSame( FF2[0]) || FF1[0].IsSame( FF2[1]))
std::swap( FF1[0], FF1[1] );
if ( FF2[0].IsSame( FF1[0]) )
std::swap( FF2[0], FF2[1] );
if ( FF1[0].IsNull() || FF2[0].IsNull() )
continue;
// // get a new normal for edge1
bool ok;
gp_Vec dir1 = edge1->_normal, dir2 = edge2->_normal;
if ( edge1->_cosin < 0 )
dir1 = getFaceDir( FF1[0], E1, edge1->_nodes[0], helper, ok ).Normalized();
if ( edge2->_cosin < 0 )
dir2 = getFaceDir( FF2[0], E2, edge2->_nodes[0], helper, ok ).Normalized();
// gp_Vec dir1 = getFaceDir( FF1[0], E1, edge1->_nodes[0], helper, ok );
// gp_Vec dir2 = getFaceDir( FF2[0], E2, edge2->_nodes[0], helper, ok2 );
// double wgt1 = ( edge1->_cosin + 1 ) / ( edge1->_cosin + edge2->_cosin + 2 );
// double wgt2 = ( edge2->_cosin + 1 ) / ( edge1->_cosin + edge2->_cosin + 2 );
// gp_Vec newNorm = wgt1 * dir1 + wgt2 * dir2;
// newNorm.Normalize();
double wgt1 = ( edge1->_cosin + 1 ) / ( edge1->_cosin + edge2->_cosin + 2 );
double wgt2 = ( edge2->_cosin + 1 ) / ( edge1->_cosin + edge2->_cosin + 2 );
gp_Vec newNorm = wgt1 * dir1 + wgt2 * dir2;
newNorm.Normalize();
edge1->_normal = newNorm.XYZ();
// update data of edge1 depending on _normal
const SMDS_MeshNode *n1, *n2;
n1 = edge1->_2neibors->_edges[0]->_nodes[0];
n2 = edge1->_2neibors->_edges[1]->_nodes[0];
//if ( !findNeiborsOnEdge( edge1, n1, n2, data ))
//continue;
edge1->SetDataByNeighbors( n1, n2, helper );
gp_Vec dirInFace;
if ( edge1->_cosin < 0 )
dirInFace = dir1;
else
getFaceDir( FF1[0], E1, edge1->_nodes[0], helper, ok );
double angle = dir1.Angle( edge1->_normal ); // [0,PI]
edge1->SetCosin( cos( angle ));
// limit data._stepSize
if ( edge1->_cosin > 0.1 )
{
SMDS_ElemIteratorPtr fIt = edge1->_nodes[0]->GetInverseElementIterator(SMDSAbs_Face);
while ( fIt->more() )
limitStepSize( data, fIt->next(), edge1->_cosin );
}
// set new XYZ of target node
edge1->InvalidateStep( 1 );
edge1->_len = 0;
edge1->SetNewLength( data._stepSize, helper );
}
// Update normals and other dependent data of not intersecting _LayerEdge's
// neighboring the intersecting ones
for ( e2ee = edge2CloseEdge.begin(); e2ee != edge2CloseEdge.end(); ++e2ee )
{
_LayerEdge* edge1 = e2ee->first;
if ( !edge1->_2neibors )
continue;
for ( int j = 0; j < 2; ++j ) // loop on 2 neighbors
{
_LayerEdge* neighbor = edge1->_2neibors->_edges[j];
if ( edge2CloseEdge.count ( neighbor ))
continue; // j-th neighbor is also intersected
_LayerEdge* prevEdge = edge1;
const int nbSteps = 6;
for ( int step = nbSteps; step; --step ) // step from edge1 in j-th direction
{
if ( !neighbor->_2neibors )
break; // neighbor is on VERTEX
int iNext = 0;
_LayerEdge* nextEdge = neighbor->_2neibors->_edges[iNext];
if ( nextEdge == prevEdge )
nextEdge = neighbor->_2neibors->_edges[ ++iNext ];
// const double& wgtPrev = neighbor->_2neibors->_wgt[1-iNext];
// const double& wgtNext = neighbor->_2neibors->_wgt[iNext];
double r = double(step-1)/nbSteps;
if ( !nextEdge->_2neibors )
r = 0.5;
gp_XYZ newNorm = prevEdge->_normal * r + nextEdge->_normal * (1-r);
newNorm.Normalize();
neighbor->_normal = newNorm;
neighbor->SetCosin( prevEdge->_cosin * r + nextEdge->_cosin * (1-r) );
neighbor->SetDataByNeighbors( prevEdge->_nodes[0], nextEdge->_nodes[0], helper );
neighbor->InvalidateStep( 1 );
neighbor->_len = 0;
neighbor->SetNewLength( data._stepSize, helper );
// goto the next neighbor
prevEdge = neighbor;
neighbor = nextEdge;
}
}
}
dumpFunctionEnd();
}
// 2) Check absence of intersections
// TODO?
for ( unsigned i = 0 ; i < tmpFaces.size(); ++i )
delete tmpFaces[i];
return true;
}
Definition at line 477 of file StdMeshers_ViscousLayers.cxx.
set<TGeomID> VISCOUS._ViscousBuilder._ignoreShapeIds [private] |
Definition at line 480 of file StdMeshers_ViscousLayers.cxx.
SMESH_Mesh* VISCOUS._ViscousBuilder._mesh [private] |
Definition at line 476 of file StdMeshers_ViscousLayers.cxx.
vector< _SolidData > VISCOUS._ViscousBuilder._sdVec [private] |
Definition at line 479 of file StdMeshers_ViscousLayers.cxx.
int VISCOUS._ViscousBuilder._tmpFaceID [private] |
Definition at line 481 of file StdMeshers_ViscousLayers.cxx.