#include "SMDS_FacePosition.hxx"
#include "SMDS_IteratorOnIterators.hxx"
#include "SMDS_VolumeTool.hxx"
+#include "SMESH_Block.hxx"
#include "SMESH_ProxyMesh.hxx"
#include "SMESH_subMesh.hxx"
#include <BRepAdaptor_Curve.hxx>
#include <BRepAdaptor_Surface.hxx>
-#include <BRepClass3d_SolidClassifier.hxx>
#include <BRepTools.hxx>
-#include <BRepTools_WireExplorer.hxx>
#include <BRep_Tool.hxx>
#include <Geom2d_Curve.hxx>
#include <GeomAPI_ProjectPointOnCurve.hxx>
//================================================================================
SMESH_MesherHelper::SMESH_MesherHelper(SMESH_Mesh& theMesh)
- : myParIndex(0), myMesh(&theMesh), myShapeID(0), myCreateQuadratic(false),
+ : myParIndex(0),
+ myMesh(&theMesh),
+ myShapeID(0),
+ myCreateQuadratic(false),
+ myCreateBiQuadratic(false),
myFixNodeParameters(false)
{
myPar1[0] = myPar2[0] = myPar1[1] = myPar2[1] = 0;
//=======================================================================
//function : SetSubShape
-//purpose : Set geomerty to make elements on
+//purpose : Set geometry to make elements on
//=======================================================================
void SMESH_MesherHelper::SetSubShape(const int aShID)
//=======================================================================
//function : SetSubShape
-//purpose : Set geomerty to create elements on
+//purpose : Set geometry to create elements on
//=======================================================================
void SMESH_MesherHelper::SetSubShape(const TopoDS_Shape& aSh)
//function : GetMediumPos
//purpose : Return index and type of the shape (EDGE or FACE only) to
// set a medium node on
+//param : useCurSubShape - if true, returns the shape set via SetSubShape()
+// if any
//=======================================================================
-std::pair<int, TopAbs_ShapeEnum> SMESH_MesherHelper::GetMediumPos(const SMDS_MeshNode* n1,
- const SMDS_MeshNode* n2)
+std::pair<int, TopAbs_ShapeEnum>
+SMESH_MesherHelper::GetMediumPos(const SMDS_MeshNode* n1,
+ const SMDS_MeshNode* n2,
+ const bool useCurSubShape)
{
+ if ( useCurSubShape && !myShape.IsNull() )
+ return std::make_pair( myShapeID, myShape.ShapeType() );
+
TopAbs_ShapeEnum shapeType = TopAbs_SHAPE;
int shapeID = -1;
TopoDS_Shape shape;
return make_pair( shapeID, shapeType );
}
+//=======================================================================
+//function : GetCentralNode
+//purpose : Return existing or create a new central node for a quardilateral
+// quadratic face given its 8 nodes.
+//@param : force3d - true means node creation in between the given nodes,
+// else node position is found on a geometrical face if any.
+//=======================================================================
+
+const SMDS_MeshNode* SMESH_MesherHelper::GetCentralNode(const SMDS_MeshNode* n1,
+ const SMDS_MeshNode* n2,
+ const SMDS_MeshNode* n3,
+ const SMDS_MeshNode* n4,
+ const SMDS_MeshNode* n12,
+ const SMDS_MeshNode* n23,
+ const SMDS_MeshNode* n34,
+ const SMDS_MeshNode* n41,
+ bool force3d)
+{
+ SMDS_MeshNode *centralNode = 0; // central node to return
+
+ // Find an existing central node
+
+ TBiQuad keyOfMap(n1,n2,n3,n4);
+ std::map<TBiQuad, SMDS_MeshNode* >::iterator itMapCentralNode;
+ itMapCentralNode = myMapWithCentralNode.find( keyOfMap );
+ if ( itMapCentralNode != myMapWithCentralNode.end() )
+ {
+ return (*itMapCentralNode).second;
+ }
+
+ // Get type of shape for the new central node
+
+ TopAbs_ShapeEnum shapeType = TopAbs_SHAPE;
+ int shapeID = -1;
+ int faceID = -1;
+ TopoDS_Shape shape;
+ TopTools_ListIteratorOfListOfShape it;
+
+ std::map< int, int > faceId2nbNodes;
+ std::map< int, int > ::iterator itMapWithIdFace;
+
+ SMESHDS_Mesh* meshDS = GetMeshDS();
+
+ // check if a face lie on a FACE, i.e. its all corner nodes lie either on the FACE or
+ // on sub-shapes of the FACE
+ if ( GetMesh()->HasShapeToMesh() )
+ {
+ const SMDS_MeshNode* nodes[] = { n1, n2, n3, n4 };
+ for(int i = 0; i < 4; i++)
+ {
+ shape = GetSubShapeByNode( nodes[i], meshDS );
+ if ( shape.IsNull() ) break;
+ if ( shape.ShapeType() == TopAbs_SOLID )
+ {
+ shapeID = nodes[i]->getshapeId();
+ shapeType = TopAbs_SOLID;
+ break;
+ }
+ if ( shape.ShapeType() == TopAbs_FACE )
+ {
+ faceID = nodes[i]->getshapeId();
+ itMapWithIdFace = faceId2nbNodes.insert( std::make_pair( faceID, 0 ) ).first;
+ itMapWithIdFace->second++;
+ }
+ else
+ {
+ PShapeIteratorPtr it = GetAncestors(shape, *GetMesh(), TopAbs_FACE );
+ while ( const TopoDS_Shape* face = it->next() )
+ {
+ faceID = meshDS->ShapeToIndex( *face );
+ itMapWithIdFace = faceId2nbNodes.insert( std::make_pair( faceID, 0 ) ).first;
+ itMapWithIdFace->second++;
+ }
+ }
+ }
+ }
+ if ( shapeID < 1 && !faceId2nbNodes.empty() ) // SOLID not found
+ {
+ // find ID of the FACE the four corner nodes belong to
+ itMapWithIdFace = faceId2nbNodes.begin();
+ for ( ; itMapWithIdFace != faceId2nbNodes.end(); ++itMapWithIdFace)
+ {
+ if ( itMapWithIdFace->second == 4 )
+ {
+ shapeType = TopAbs_FACE;
+ faceID = (*itMapWithIdFace).first;
+ break;
+ }
+ }
+ }
+
+ TopoDS_Face F;
+ if ( shapeType == TopAbs_FACE )
+ {
+ F = TopoDS::Face( meshDS->IndexToShape( faceID ));
+ }
+
+ // Create a node
+
+ gp_XY uvAvg;
+ gp_Pnt P;
+ if ( !F.IsNull() )
+ {
+ if ( !force3d )
+ {
+ uvAvg = calcTFI (0.5, 0.5,
+ GetNodeUV(F,n1,n3), GetNodeUV(F,n2,n4),
+ GetNodeUV(F,n3,n1), GetNodeUV(F,n4,n2),
+ GetNodeUV(F,n12,n3), GetNodeUV(F,n23,n4),
+ GetNodeUV(F,n34,n2), GetNodeUV(F,n41,n2));
+ TopLoc_Location loc;
+ Handle( Geom_Surface ) S = BRep_Tool::Surface( F, loc );
+ P = S->Value( uvAvg.X(), uvAvg.Y() ).Transformed( loc );
+ centralNode = meshDS->AddNode( P.X(), P.Y(), P.Z() );
+ if ( mySetElemOnShape )
+ meshDS->SetNodeOnFace( centralNode, faceID, uvAvg.X(), uvAvg.Y() );
+ myMapWithCentralNode.insert( std::make_pair( keyOfMap, centralNode ) );
+ return centralNode;
+ }
+ }
+
+ P = ( SMESH_TNodeXYZ( n1 ) +
+ SMESH_TNodeXYZ( n2 ) +
+ SMESH_TNodeXYZ( n3 ) +
+ SMESH_TNodeXYZ( n4 ) ) / 4;
+ centralNode = meshDS->AddNode( P.X(), P.Y(), P.Z() );
+
+ if ( mySetElemOnShape )
+ {
+ if ( !F.IsNull() )
+ {
+ uvAvg = (GetNodeUV(F,n1,n3) +
+ GetNodeUV(F,n2,n4) +
+ GetNodeUV(F,n3,n1) +
+ GetNodeUV(F,n4,n2)) / 4;
+ CheckNodeUV( F, centralNode, uvAvg, 2*BRep_Tool::Tolerance( F ), /*force=*/true);
+ meshDS->SetNodeOnFace( centralNode, faceID, uvAvg.X(), uvAvg.Y() );
+ }
+ else if ( shapeID > 0 )
+ meshDS->SetNodeInVolume( centralNode, shapeID );
+ else if ( myShapeID > 0 )
+ meshDS->SetMeshElementOnShape( centralNode, myShapeID );
+ }
+
+ myMapWithCentralNode.insert( std::make_pair( keyOfMap, centralNode ) );
+ return centralNode;
+}
+
//=======================================================================
//function : GetMediumNode
-//purpose : Return existing or create new medium nodes between given ones
+//purpose : Return existing or create a new medium node between given ones
//=======================================================================
const SMDS_MeshNode* SMESH_MesherHelper::GetMediumNode(const SMDS_MeshNode* n1,
TopoDS_Face F; gp_XY uv[2];
bool uvOK[2] = { false, false };
- pair<int, TopAbs_ShapeEnum> pos = GetMediumPos( n1, n2 );
+ pair<int, TopAbs_ShapeEnum> pos = GetMediumPos( n1, n2, mySetElemOnShape );
// get positions of the given nodes on shapes
if ( pos.second == TopAbs_FACE )
gp_XY UV = GetMiddleUV( S, uv[0], uv[1] );
gp_Pnt P = S->Value( UV.X(), UV.Y() ).Transformed(loc);
n12 = meshDS->AddNode(P.X(), P.Y(), P.Z());
- meshDS->SetNodeOnFace(n12, faceID, UV.X(), UV.Y());
+ if ( mySetElemOnShape )
+ meshDS->SetNodeOnFace(n12, faceID, UV.X(), UV.Y());
myTLinkNodeMap.insert(make_pair(link,n12));
return n12;
}
gp_Pnt P = C->Value( U );
n12 = meshDS->AddNode(P.X(), P.Y(), P.Z());
- meshDS->SetNodeOnEdge(n12, edgeID, U);
+ if ( mySetElemOnShape )
+ meshDS->SetNodeOnEdge(n12, edgeID, U);
myTLinkNodeMap.insert(make_pair(link,n12));
return n12;
}
double z = ( n1->Z() + n2->Z() )/2.;
n12 = meshDS->AddNode(x,y,z);
- if ( !F.IsNull() )
- {
- gp_XY UV = ( uv[0] + uv[1] ) / 2.;
- CheckNodeUV( F, n12, UV, 2*BRep_Tool::Tolerance( F ), /*force=*/true);
- meshDS->SetNodeOnFace(n12, faceID, UV.X(), UV.Y() );
- }
- else if ( !E.IsNull() )
+ if ( mySetElemOnShape )
{
- double U = ( u[0] + u[1] ) / 2.;
- CheckNodeU( E, n12, U, 2*BRep_Tool::Tolerance( E ), /*force=*/true);
- meshDS->SetNodeOnEdge(n12, edgeID, U);
- }
- else if ( myShapeID > 0 )
- {
- meshDS->SetNodeInVolume(n12, myShapeID);
+ if ( !F.IsNull() )
+ {
+ gp_XY UV = ( uv[0] + uv[1] ) / 2.;
+ CheckNodeUV( F, n12, UV, 2*BRep_Tool::Tolerance( F ), /*force=*/true);
+ meshDS->SetNodeOnFace(n12, faceID, UV.X(), UV.Y() );
+ }
+ else if ( !E.IsNull() )
+ {
+ double U = ( u[0] + u[1] ) / 2.;
+ CheckNodeU( E, n12, U, 2*BRep_Tool::Tolerance( E ), /*force=*/true);
+ meshDS->SetNodeOnEdge(n12, edgeID, U);
+ }
+ else if ( myShapeID > 0 )
+ {
+ meshDS->SetMeshElementOnShape(n12, myShapeID);
+ }
}
myTLinkNodeMap.insert( make_pair( link, n12 ));
GetMeshDS()->MoveNode( n12, p.X(), p.Y(), p.Z() );
}
- GetMeshDS()->SetNodeOnEdge(n12, edges[iOkEdge], u);
+ if ( mySetElemOnShape )
+ GetMeshDS()->SetNodeOnEdge(n12, edges[iOkEdge], u);
myTLinkNodeMap.insert( make_pair( SMESH_TLink(n1,n2), n12 ));
//=======================================================================
//function : AddFace
-//purpose : Creates quadratic or linear quadrangle
+//purpose : Creates bi-quadratic, quadratic or linear quadrangle
//=======================================================================
SMDS_MeshFace* SMESH_MesherHelper::AddFace(const SMDS_MeshNode* n1,
const SMDS_MeshNode* n23 = GetMediumNode(n2,n3,force3d);
const SMDS_MeshNode* n34 = GetMediumNode(n3,n4,force3d);
const SMDS_MeshNode* n41 = GetMediumNode(n4,n1,force3d);
-
- if(id)
- elem = meshDS->AddFaceWithID(n1, n2, n3, n4, n12, n23, n34, n41, id);
+ if(myCreateBiQuadratic)
+ {
+ const SMDS_MeshNode* nCenter = GetCentralNode(n1, n2, n3, n4, n12, n23, n34, n41, force3d);
+ if(id)
+ elem = meshDS->AddFaceWithID(n1, n2, n3, n4, n12, n23, n34, n41, nCenter, id);
+ else
+ elem = meshDS->AddFace(n1, n2, n3, n4, n12, n23, n34, n41, nCenter);
+ }
else
- elem = meshDS->AddFace(n1, n2, n3, n4, n12, n23, n34, n41);
+ {
+ if(id)
+ elem = meshDS->AddFaceWithID(n1, n2, n3, n4, n12, n23, n34, n41, id);
+ else
+ elem = meshDS->AddFace(n1, n2, n3, n4, n12, n23, n34, n41);
+ }
}
if ( mySetElemOnShape && myShapeID > 0 )
meshDS->SetMeshElementOnShape( elem, myShapeID );
//=======================================================================
//function : AddVolume
-//purpose : Creates quadratic or linear hexahedron
+//purpose : Creates bi-quadratic, quadratic or linear hexahedron
//=======================================================================
SMDS_MeshVolume* SMESH_MesherHelper::AddVolume(const SMDS_MeshNode* n1,
const SMDS_MeshNode* n26 = GetMediumNode(n2,n6,force3d);
const SMDS_MeshNode* n37 = GetMediumNode(n3,n7,force3d);
const SMDS_MeshNode* n48 = GetMediumNode(n4,n8,force3d);
-
- if(id)
- elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n5, n6, n7, n8,
- n12, n23, n34, n41, n56, n67,
- n78, n85, n15, n26, n37, n48, id);
+ if(myCreateBiQuadratic)
+ {
+ const SMDS_MeshNode* n1234 = GetCentralNode(n1,n2,n3,n4,n12,n23,n34,n41,force3d);
+ const SMDS_MeshNode* n1256 = GetCentralNode(n1,n2,n5,n6,n12,n26,n56,n15,force3d);
+ const SMDS_MeshNode* n2367 = GetCentralNode(n2,n3,n6,n7,n23,n37,n67,n26,force3d);
+ const SMDS_MeshNode* n3478 = GetCentralNode(n3,n4,n7,n8,n34,n48,n78,n37,force3d);
+ const SMDS_MeshNode* n1458 = GetCentralNode(n1,n4,n5,n8,n41,n48,n15,n85,force3d);
+ const SMDS_MeshNode* n5678 = GetCentralNode(n5,n6,n7,n8,n56,n67,n78,n85,force3d);
+
+ vector<gp_XYZ> pointsOnShapes( SMESH_Block::ID_Shell );
+
+ pointsOnShapes[ SMESH_Block::ID_V000 ] = SMESH_TNodeXYZ( n4 );
+ pointsOnShapes[ SMESH_Block::ID_V100 ] = SMESH_TNodeXYZ( n8 );
+ pointsOnShapes[ SMESH_Block::ID_V010 ] = SMESH_TNodeXYZ( n3 );
+ pointsOnShapes[ SMESH_Block::ID_V110 ] = SMESH_TNodeXYZ( n7 );
+ pointsOnShapes[ SMESH_Block::ID_V001 ] = SMESH_TNodeXYZ( n1 );
+ pointsOnShapes[ SMESH_Block::ID_V101 ] = SMESH_TNodeXYZ( n5 );
+ pointsOnShapes[ SMESH_Block::ID_V011 ] = SMESH_TNodeXYZ( n2 );
+ pointsOnShapes[ SMESH_Block::ID_V111 ] = SMESH_TNodeXYZ( n6 );
+
+ pointsOnShapes[ SMESH_Block::ID_Ex00 ] = SMESH_TNodeXYZ( n48 );
+ pointsOnShapes[ SMESH_Block::ID_Ex10 ] = SMESH_TNodeXYZ( n37 );
+ pointsOnShapes[ SMESH_Block::ID_E0y0 ] = SMESH_TNodeXYZ( n15 );
+ pointsOnShapes[ SMESH_Block::ID_E1y0 ] = SMESH_TNodeXYZ( n26 );
+ pointsOnShapes[ SMESH_Block::ID_Ex01 ] = SMESH_TNodeXYZ( n34 );
+ pointsOnShapes[ SMESH_Block::ID_Ex11 ] = SMESH_TNodeXYZ( n78 );
+ pointsOnShapes[ SMESH_Block::ID_E0y1 ] = SMESH_TNodeXYZ( n12 );
+ pointsOnShapes[ SMESH_Block::ID_E1y1 ] = SMESH_TNodeXYZ( n56 );
+ pointsOnShapes[ SMESH_Block::ID_E00z ] = SMESH_TNodeXYZ( n41 );
+ pointsOnShapes[ SMESH_Block::ID_E10z ] = SMESH_TNodeXYZ( n85 );
+ pointsOnShapes[ SMESH_Block::ID_E01z ] = SMESH_TNodeXYZ( n23 );
+ pointsOnShapes[ SMESH_Block::ID_E11z ] = SMESH_TNodeXYZ( n67 );
+
+ pointsOnShapes[ SMESH_Block::ID_Fxy0 ] = SMESH_TNodeXYZ( n3478 );
+ pointsOnShapes[ SMESH_Block::ID_Fxy1 ] = SMESH_TNodeXYZ( n1256 );
+ pointsOnShapes[ SMESH_Block::ID_Fx0z ] = SMESH_TNodeXYZ( n1458 );
+ pointsOnShapes[ SMESH_Block::ID_Fx1z ] = SMESH_TNodeXYZ( n2367 );
+ pointsOnShapes[ SMESH_Block::ID_F0yz ] = SMESH_TNodeXYZ( n1234 );
+ pointsOnShapes[ SMESH_Block::ID_F1yz ] = SMESH_TNodeXYZ( n5678 );
+
+ gp_XYZ centerCube(0.5, 0.5, 0.5);
+ gp_XYZ nCenterElem;
+ SMESH_Block::ShellPoint( centerCube, pointsOnShapes, nCenterElem );
+ const SMDS_MeshNode* nCenter =
+ meshDS->AddNode( nCenterElem.X(), nCenterElem.Y(), nCenterElem.Z() );
+ meshDS->SetNodeInVolume( nCenter, myShapeID );
+
+ if(id)
+ elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n5, n6, n7, n8,
+ n12, n23, n34, n41, n56, n67,
+ n78, n85, n15, n26, n37, n48,
+ n1234, n1256, n2367, n3478, n1458, n5678, nCenter, id);
+ else
+ elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6, n7, n8,
+ n12, n23, n34, n41, n56, n67,
+ n78, n85, n15, n26, n37, n48,
+ n1234, n1256, n2367, n3478, n1458, n5678, nCenter);
+ }
else
- elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6, n7, n8,
- n12, n23, n34, n41, n56, n67,
- n78, n85, n15, n26, n37, n48);
+ {
+ if(id)
+ elem = meshDS->AddVolumeWithID(n1, n2, n3, n4, n5, n6, n7, n8,
+ n12, n23, n34, n41, n56, n67,
+ n78, n85, n15, n26, n37, n48, id);
+ else
+ elem = meshDS->AddVolume(n1, n2, n3, n4, n5, n6, n7, n8,
+ n12, n23, n34, n41, n56, n67,
+ n78, n85, n15, n26, n37, n48);
+ }
}
if ( mySetElemOnShape && myShapeID > 0 )
meshDS->SetMeshElementOnShape( elem, myShapeID );
}
}
+//=======================================================================
+//function : IsSameElemGeometry
+//purpose : Returns true if all elements of a sub-mesh are of same shape
+//=======================================================================
+
+bool SMESH_MesherHelper::IsSameElemGeometry(const SMESHDS_SubMesh* smDS,
+ SMDSAbs_GeometryType shape,
+ const bool nullSubMeshRes)
+{
+ if ( !smDS ) return nullSubMeshRes;
+
+ SMDS_ElemIteratorPtr elemIt = smDS->GetElements();
+ while ( elemIt->more() ) {
+ const SMDS_MeshElement* e = elemIt->next();
+ if ( e->GetGeomType() != shape )
+ return false;
+ }
+ return true;
+}
+
//=======================================================================
//function : LoadNodeColumns
//purpose : Load nodes bound to face into a map of node columns
SMESHDS_Mesh* theMesh,
SMESH_ProxyMesh* theProxyMesh)
{
- // get a right submesh of theFace
+ // get a right sub-mesh of theFace
const SMESHDS_SubMesh* faceSubMesh = 0;
if ( theProxyMesh )
if ( !faceSubMesh || faceSubMesh->NbElements() == 0 )
return false;
- // get data of edges for normalization of params
-
- vector< double > length;
- double fullLen = 0;
- list<TopoDS_Edge>::const_iterator edge;
+ if ( theParam2ColumnMap.empty() )
{
- for ( edge = theBaseSide.begin(); edge != theBaseSide.end(); ++edge )
+ // get data of edges for normalization of params
+
+ vector< double > length;
+ double fullLen = 0;
+ list<TopoDS_Edge>::const_iterator edge;
{
- double len = std::max( 1e-10, SMESH_Algo::EdgeLength( *edge ));
- fullLen += len;
- length.push_back( len );
+ for ( edge = theBaseSide.begin(); edge != theBaseSide.end(); ++edge )
+ {
+ double len = std::max( 1e-10, SMESH_Algo::EdgeLength( *edge ));
+ fullLen += len;
+ length.push_back( len );
+ }
}
- }
-
- // get nodes on theBaseEdge sorted by param on edge and initialize theParam2ColumnMap with them
- edge = theBaseSide.begin();
- for ( int iE = 0; edge != theBaseSide.end(); ++edge, ++iE )
- {
- map< double, const SMDS_MeshNode*> sortedBaseNodes;
- SMESH_Algo::GetSortedNodesOnEdge( theMesh, *edge,/*noMedium=*/true, sortedBaseNodes);
- if ( sortedBaseNodes.empty() ) continue;
- map< double, const SMDS_MeshNode*>::iterator u_n = sortedBaseNodes.begin();
- if ( theProxyMesh ) // from sortedBaseNodes remove nodes not shared by faces of faceSubMesh
+ // get nodes on theBaseEdge sorted by param on edge and initialize theParam2ColumnMap with them
+ edge = theBaseSide.begin();
+ for ( int iE = 0; edge != theBaseSide.end(); ++edge, ++iE )
{
- const SMDS_MeshNode* n1 = sortedBaseNodes.begin()->second;
- const SMDS_MeshNode* n2 = sortedBaseNodes.rbegin()->second;
- bool allNodesAreProxy = ( n1 != theProxyMesh->GetProxyNode( n1 ) &&
- n2 != theProxyMesh->GetProxyNode( n2 ));
- if ( allNodesAreProxy )
- for ( u_n = sortedBaseNodes.begin(); u_n != sortedBaseNodes.end(); u_n++ )
- u_n->second = theProxyMesh->GetProxyNode( u_n->second );
+ map< double, const SMDS_MeshNode*> sortedBaseNN;
+ SMESH_Algo::GetSortedNodesOnEdge( theMesh, *edge,/*noMedium=*/true, sortedBaseNN);
+ if ( sortedBaseNN.empty() ) continue;
- if ( u_n = sortedBaseNodes.begin(), !isNodeInSubMesh( u_n->second, faceSubMesh ))
+ map< double, const SMDS_MeshNode*>::iterator u_n = sortedBaseNN.begin();
+ if ( theProxyMesh ) // from sortedBaseNN remove nodes not shared by faces of faceSubMesh
{
- while ( ++u_n != sortedBaseNodes.end() && !isNodeInSubMesh( u_n->second, faceSubMesh ));
- sortedBaseNodes.erase( sortedBaseNodes.begin(), u_n );
+ const SMDS_MeshNode* n1 = sortedBaseNN.begin()->second;
+ const SMDS_MeshNode* n2 = sortedBaseNN.rbegin()->second;
+ bool allNodesAreProxy = ( n1 != theProxyMesh->GetProxyNode( n1 ) &&
+ n2 != theProxyMesh->GetProxyNode( n2 ));
+ if ( allNodesAreProxy )
+ for ( u_n = sortedBaseNN.begin(); u_n != sortedBaseNN.end(); u_n++ )
+ u_n->second = theProxyMesh->GetProxyNode( u_n->second );
+
+ if ( u_n = sortedBaseNN.begin(), !isNodeInSubMesh( u_n->second, faceSubMesh ))
+ {
+ while ( ++u_n != sortedBaseNN.end() && !isNodeInSubMesh( u_n->second, faceSubMesh ));
+ sortedBaseNN.erase( sortedBaseNN.begin(), u_n );
+ }
+ else if ( u_n = --sortedBaseNN.end(), !isNodeInSubMesh( u_n->second, faceSubMesh ))
+ {
+ while ( u_n != sortedBaseNN.begin() && !isNodeInSubMesh( (--u_n)->second, faceSubMesh ));
+ sortedBaseNN.erase( ++u_n, sortedBaseNN.end() );
+ }
+ if ( sortedBaseNN.empty() ) continue;
}
- else if ( u_n = --sortedBaseNodes.end(), !isNodeInSubMesh( u_n->second, faceSubMesh ))
+
+ double f, l;
+ BRep_Tool::Range( *edge, f, l );
+ if ( edge->Orientation() == TopAbs_REVERSED ) std::swap( f, l );
+ const double coeff = 1. / ( l - f ) * length[iE] / fullLen;
+ const double prevPar = theParam2ColumnMap.empty() ? 0 : theParam2ColumnMap.rbegin()->first;
+ for ( u_n = sortedBaseNN.begin(); u_n != sortedBaseNN.end(); u_n++ )
{
- while ( u_n != sortedBaseNodes.begin() && !isNodeInSubMesh( (--u_n)->second, faceSubMesh ));
- sortedBaseNodes.erase( ++u_n, sortedBaseNodes.end() );
+ double par = prevPar + coeff * ( u_n->first - f );
+ TParam2ColumnMap::iterator u2nn =
+ theParam2ColumnMap.insert( theParam2ColumnMap.end(), make_pair( par, TNodeColumn()));
+ u2nn->second.push_back( u_n->second );
}
- if ( sortedBaseNodes.empty() ) continue;
- }
-
- double f, l;
- BRep_Tool::Range( *edge, f, l );
- if ( edge->Orientation() == TopAbs_REVERSED ) std::swap( f, l );
- const double coeff = 1. / ( l - f ) * length[iE] / fullLen;
- const double prevPar = theParam2ColumnMap.empty() ? 0 : theParam2ColumnMap.rbegin()->first;
- for ( u_n = sortedBaseNodes.begin(); u_n != sortedBaseNodes.end(); u_n++ )
- {
- double par = prevPar + coeff * ( u_n->first - f );
- TParam2ColumnMap::iterator u2nn =
- theParam2ColumnMap.insert( theParam2ColumnMap.end(), make_pair( par, TNodeColumn()));
- u2nn->second.push_back( u_n->second );
}
+ if ( theParam2ColumnMap.empty() )
+ return false;
}
- if ( theParam2ColumnMap.empty() )
- return false;
-
- int nbRows = 1 + faceSubMesh->NbElements() / ( theParam2ColumnMap.size()-1 );
+ // nb rows of nodes
+ int prevNbRows = theParam2ColumnMap.begin()->second.size(); // current, at least 1 here
+ int expectedNbRows = faceSubMesh->NbElements() / ( theParam2ColumnMap.size()-1 ); // to be added
// fill theParam2ColumnMap column by column by passing from nodes on
// theBaseEdge up via mesh faces on theFace
{
vector<const SMDS_MeshNode*>& nCol1 = par_nVec_1->second;
vector<const SMDS_MeshNode*>& nCol2 = par_nVec_2->second;
- nCol1.resize( nbRows );
- nCol2.resize( nbRows );
+ nCol1.resize( prevNbRows + expectedNbRows );
+ nCol2.resize( prevNbRows + expectedNbRows );
- int i1, i2, iRow = 0;
- const SMDS_MeshNode *n1 = nCol1[0], *n2 = nCol2[0];
+ int i1, i2, foundNbRows = 0;
+ const SMDS_MeshNode *n1 = nCol1[ prevNbRows-1 ];
+ const SMDS_MeshNode *n2 = nCol2[ prevNbRows-1 ];
// find face sharing node n1 and n2 and belonging to faceSubMesh
while ( const SMDS_MeshElement* face =
SMESH_MeshEditor::FindFaceInSet( n1, n2, emptySet, avoidSet, &i1, &i2))
{
if ( faceSubMesh->Contains( face ))
{
- int nbNodes = face->IsQuadratic() ? face->NbNodes()/2 : face->NbNodes();
+ int nbNodes = face->NbCornerNodes();
if ( nbNodes != 4 )
return false;
+ if ( foundNbRows + 1 > expectedNbRows )
+ return false;
n1 = face->GetNode( (i2+2) % 4 ); // opposite corner of quadrangle face
n2 = face->GetNode( (i1+2) % 4 );
- if ( ++iRow >= nbRows )
- return false;
- nCol1[ iRow ] = n1;
- nCol2[ iRow ] = n2;
- avoidSet.clear();
+ nCol1[ prevNbRows + foundNbRows] = n1;
+ nCol2[ prevNbRows + foundNbRows] = n2;
+ ++foundNbRows;
}
avoidSet.insert( face );
}
- // set a real height
- nCol1.resize( iRow + 1 );
- nCol2.resize( iRow + 1 );
+ if ( foundNbRows != expectedNbRows )
+ return false;
+ avoidSet.clear();
+ }
+ return ( theParam2ColumnMap.size() > 1 &&
+ theParam2ColumnMap.begin()->second.size() == prevNbRows + expectedNbRows );
+}
+
+namespace
+{
+ //================================================================================
+ /*!
+ * \brief Return true if a node is at a corner of a 2D structured mesh of FACE
+ */
+ //================================================================================
+
+ bool isCornerOfStructure( const SMDS_MeshNode* n,
+ const SMESHDS_SubMesh* faceSM,
+ SMESH_MesherHelper& faceAnalyser )
+ {
+ int nbFacesInSM = 0;
+ if ( n ) {
+ SMDS_ElemIteratorPtr fIt = n->GetInverseElementIterator( SMDSAbs_Face );
+ while ( fIt->more() )
+ nbFacesInSM += faceSM->Contains( fIt->next() );
+ }
+ if ( nbFacesInSM == 1 )
+ return true;
+
+ if ( nbFacesInSM == 2 && n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
+ {
+ return faceAnalyser.IsRealSeam( n->getshapeId() );
+ }
+ return false;
+ }
+}
+
+//=======================================================================
+//function : IsStructured
+//purpose : Return true if 2D mesh on FACE is structured
+//=======================================================================
+
+bool SMESH_MesherHelper::IsStructured( SMESH_subMesh* faceSM )
+{
+ SMESHDS_SubMesh* fSM = faceSM->GetSubMeshDS();
+ if ( !fSM || fSM->NbElements() == 0 )
+ return false;
+
+ list< TopoDS_Edge > edges;
+ list< int > nbEdgesInWires;
+ int nbWires = SMESH_Block::GetOrderedEdges( TopoDS::Face( faceSM->GetSubShape() ),
+ edges, nbEdgesInWires );
+ if ( nbWires != 1 || nbEdgesInWires.front() != 4 )
+ return false;
+
+ // algo: find corners of a structure and then analyze nb of faces and
+ // length of structure sides
+
+ SMESHDS_Mesh* meshDS = faceSM->GetFather()->GetMeshDS();
+ SMESH_MesherHelper faceAnalyser( *faceSM->GetFather() );
+ faceAnalyser.SetSubShape( faceSM->GetSubShape() );
+
+ // rotate edges to get the first node being at corner
+ // (in principle it's not necessary but so far none SALOME algo can make
+ // such a structured mesh that all corner nodes are not on VERTEXes)
+ bool isCorner = false;
+ int nbRemainEdges = nbEdgesInWires.front();
+ do {
+ TopoDS_Vertex V = IthVertex( 0, edges.front() );
+ isCorner = isCornerOfStructure( SMESH_Algo::VertexNode( V, meshDS ),
+ fSM, faceAnalyser);
+ if ( !isCorner ) {
+ edges.splice( edges.end(), edges, edges.begin() );
+ --nbRemainEdges;
+ }
+ }
+ while ( !isCorner && nbRemainEdges > 0 );
+
+ if ( !isCorner )
+ return false;
+
+ // get all nodes from EDGEs
+ list< const SMDS_MeshNode* > nodes;
+ list< TopoDS_Edge >::iterator edge = edges.begin();
+ for ( ; edge != edges.end(); ++edge )
+ {
+ map< double, const SMDS_MeshNode* > u2Nodes;
+ if ( !SMESH_Algo::GetSortedNodesOnEdge( meshDS, *edge,
+ /*skipMedium=*/true, u2Nodes ))
+ return false;
+
+ list< const SMDS_MeshNode* > edgeNodes;
+ map< double, const SMDS_MeshNode* >::iterator u2n = u2Nodes.begin();
+ for ( ; u2n != u2Nodes.end(); ++u2n )
+ edgeNodes.push_back( u2n->second );
+ if ( edge->Orientation() == TopAbs_REVERSED )
+ edgeNodes.reverse();
+
+ if ( !nodes.empty() && nodes.back() == edgeNodes.front() )
+ edgeNodes.pop_front();
+ nodes.splice( nodes.end(), edgeNodes, edgeNodes.begin(), edgeNodes.end() );
+ }
+
+ // get length of structured sides
+ vector<int> nbEdgesInSide;
+ int nbEdges = 0;
+ list< const SMDS_MeshNode* >::iterator n = ++nodes.begin();
+ for ( ; n != nodes.end(); ++n )
+ {
+ ++nbEdges;
+ if ( isCornerOfStructure( *n, fSM, faceAnalyser )) {
+ nbEdgesInSide.push_back( nbEdges );
+ nbEdges = 0;
+ }
+ }
+
+ // checks
+ if ( nbEdgesInSide.size() != 4 )
+ return false;
+ if ( nbEdgesInSide[0] != nbEdgesInSide[2] )
+ return false;
+ if ( nbEdgesInSide[1] != nbEdgesInSide[3] )
+ return false;
+ if ( nbEdgesInSide[0] * nbEdgesInSide[1] != fSM->NbElements() )
+ return false;
+
+ return true;
+}
+
+//================================================================================
+/*!
+ * \brief Find out elements orientation on a geometrical face
+ * \param theFace - The face correctly oriented in the shape being meshed
+ * \retval bool - true if the face normal and the normal of first element
+ * in the correspoding submesh point in different directions
+ */
+//================================================================================
+
+bool SMESH_MesherHelper::IsReversedSubMesh (const TopoDS_Face& theFace)
+{
+ if ( theFace.IsNull() )
+ return false;
+
+ // find out orientation of a meshed face
+ int faceID = GetMeshDS()->ShapeToIndex( theFace );
+ TopoDS_Shape aMeshedFace = GetMeshDS()->IndexToShape( faceID );
+ bool isReversed = ( theFace.Orientation() != aMeshedFace.Orientation() );
+
+ const SMESHDS_SubMesh * aSubMeshDSFace = GetMeshDS()->MeshElements( faceID );
+ if ( !aSubMeshDSFace )
+ return isReversed;
+
+ // find an element with a good normal
+ gp_Vec Ne;
+ bool normalOK = false;
+ gp_XY uv;
+ SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
+ while ( !normalOK && iteratorElem->more() ) // loop on elements on theFace
+ {
+ const SMDS_MeshElement* elem = iteratorElem->next();
+ if ( elem && elem->NbCornerNodes() > 2 )
+ {
+ SMESH_TNodeXYZ nPnt[3];
+ SMDS_ElemIteratorPtr nodesIt = elem->nodesIterator();
+ for ( int iN = 0; nodesIt->more() && iN < 3; ++iN) // loop on nodes
+ nPnt[ iN ] = nodesIt->next();
+
+ // compute normal
+ gp_Vec v01( nPnt[0], nPnt[1] ), v02( nPnt[0], nPnt[2] );
+ if ( v01.SquareMagnitude() > RealSmall() &&
+ v02.SquareMagnitude() > RealSmall() )
+ {
+ Ne = v01 ^ v02;
+ if (( normalOK = ( Ne.SquareMagnitude() > RealSmall() )))
+ uv = GetNodeUV( theFace, nPnt[0]._node, nPnt[2]._node, &normalOK );
+ }
+ }
+ }
+ if ( !normalOK )
+ return isReversed;
+
+ // face normal at node position
+ TopLoc_Location loc;
+ Handle(Geom_Surface) surf = BRep_Tool::Surface( theFace, loc );
+ // if ( surf.IsNull() || surf->Continuity() < GeomAbs_C1 )
+ // some surfaces not detected as GeomAbs_C1 are nevertheless correct for meshing
+ if ( surf.IsNull() || surf->Continuity() < GeomAbs_C0 )
+ {
+ if (!surf.IsNull())
+ MESSAGE("surf->Continuity() < GeomAbs_C1 " << (surf->Continuity() < GeomAbs_C1));
+ return isReversed;
+ }
+ gp_Vec d1u, d1v; gp_Pnt p;
+ surf->D1( uv.X(), uv.Y(), p, d1u, d1v );
+ gp_Vec Nf = (d1u ^ d1v).Transformed( loc );
+
+ if ( theFace.Orientation() == TopAbs_REVERSED )
+ Nf.Reverse();
+
+ return Ne * Nf < 0.;
+}
+
+//=======================================================================
+//function : Count
+//purpose : Count nb of sub-shapes
+//=======================================================================
+
+int SMESH_MesherHelper::Count(const TopoDS_Shape& shape,
+ const TopAbs_ShapeEnum type,
+ const bool ignoreSame)
+{
+ if ( ignoreSame ) {
+ TopTools_IndexedMapOfShape map;
+ TopExp::MapShapes( shape, type, map );
+ return map.Extent();
+ }
+ else {
+ int nb = 0;
+ for ( TopExp_Explorer exp( shape, type ); exp.More(); exp.Next() )
+ ++nb;
+ return nb;
}
- return theParam2ColumnMap.size() > 1 && theParam2ColumnMap.begin()->second.size() > 1;
}
//=======================================================================
enum { ERR_OK, ERR_TRI, ERR_PRISM, ERR_UNKNOWN }; // errors of QFace::GetLinkChain()
// --------------------------------------------------------------------
/*!
- * \brief Face shared by two volumes and bound by QLinks
+ * \brief Quadratic face shared by two volumes and bound by QLinks
*/
struct QFace: public TIDSortedNodeSet
{
// 3. Compute displacement of medium nodes
// ---------------------------------------
- // two loops on QFaces: the first is to treat boundary links, the second is for internal ones
+ // two loops on QFaces: the first is to treat boundary links, the second is for internal ones.
TopLoc_Location loc;
- // not treat boundary of volumic submesh
+ bool checkUV;
+ // not to treat boundary of volumic sub-mesh.
int isInside = ( elemType == SMDSAbs_Volume && volumeOnly ) ? 1 : 0;
- for ( ; isInside < 2; ++isInside ) {
+ for ( ; isInside < 2; ++isInside )
+ {
MSG( "--------------- LOOP (inside=" << isInside << ") ------------------");
SMDS_TypeOfPosition pos = isInside ? SMDS_TOP_3DSPACE : SMDS_TOP_FACE;
SMDS_TypeOfPosition bndPos = isInside ? SMDS_TOP_FACE : SMDS_TOP_EDGE;
gp_Vec move1 = chain.back ()->_nodeMove;
TopoDS_Face face;
- bool checkUV = true;
if ( !isInside )
{
// compute node displacement of end links of chain in parametric space of face
// 4. Move nodes
// -------------
+ TIDSortedElemSet biQuadQuas, triQuadHexa;
+ const SMDS_MeshElement *biQuadQua, *triQuadHex;
+ const bool toFixCentralNodes = ( myMesh->NbBiQuadQuadrangles() +
+ myMesh->NbTriQuadraticHexas() );
+
for ( pLink = links.begin(); pLink != links.end(); ++pLink ) {
- if ( pLink->IsMoved() ) {
+ if ( pLink->IsMoved() )
+ {
gp_Pnt p = pLink->MiddlePnt() + pLink->Move();
GetMeshDS()->MoveNode( pLink->_mediumNode, p.X(), p.Y(), p.Z());
+
+ // collect bi-quadratic elements
+ if ( toFixCentralNodes )
+ {
+ biQuadQua = triQuadHex = 0;
+ SMDS_ElemIteratorPtr eIt = pLink->_mediumNode->GetInverseElementIterator();
+ while ( eIt->more() )
+ {
+ const SMDS_MeshElement* e = eIt->next();
+ SMDSAbs_EntityType type = e->GetEntityType();
+ if ( type == SMDSEntity_BiQuad_Quadrangle )
+ biQuadQuas.insert( e );
+ else if ( type == SMDSEntity_TriQuad_Hexa )
+ triQuadHexa.insert( e );
+ }
+ }
+ }
+ }
+
+ // Fix positions of central nodes of bi-tri-quadratic elements
+
+ // treat bi-quad quadrangles
+ {
+ vector< const SMDS_MeshNode* > nodes( 9 );
+ gp_XY uv[ 9 ];
+ //TIDSortedNodeSet checkedNodes;
+ TIDSortedElemSet::iterator quadIt = biQuadQuas.begin();
+ for ( ; quadIt != biQuadQuas.end(); ++quadIt )
+ {
+ const SMDS_MeshElement* quad = *quadIt;
+ // nodes
+ nodes.clear();
+ nodes.assign( quad->begin_nodes(), quad->end_nodes() );
+ // FACE
+ TopoDS_Shape S = GetSubShapeByNode( nodes.back(), GetMeshDS() );
+ if ( S.IsNull() || S.ShapeType() != TopAbs_FACE ) continue;
+ const TopoDS_Face& F = TopoDS::Face( S );
+ Handle( Geom_Surface ) surf = BRep_Tool::Surface( F, loc );
+ const double tol = BRep_Tool::Tolerance( F );
+ // UV
+ for ( int i = 0; i < 8; ++i )
+ {
+ uv[ i ] = GetNodeUV( F, nodes[i], nodes[8], &checkUV );
+ // as this method is used after mesh generation, UV of nodes is not
+ // updated according to bending links, so we update
+ if ( i > 3 && nodes[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
+ CheckNodeUV( F, nodes[i], uv[ i ], 2*tol, /*force=*/true );
+ }
+ // move central node
+ gp_XY uvCent = calcTFI (0.5, 0.5, uv[0],uv[1],uv[2],uv[3],uv[4],uv[5],uv[6],uv[7] );
+ gp_Pnt p = surf->Value( uvCent.X(), uvCent.Y() ).Transformed( loc );
+ GetMeshDS()->MoveNode( nodes[8], p.X(), p.Y(), p.Z());
+ }
+ }
+
+ // treat tri-quadratic hexahedra
+ {
+ SMDS_VolumeTool volExp;
+ TIDSortedElemSet::iterator hexIt = triQuadHexa.begin();
+ for ( ; hexIt != triQuadHexa.end(); ++hexIt )
+ {
+ volExp.Set( *hexIt, /*ignoreCentralNodes=*/false );
+
+ // fix nodes central in sides
+ for ( int iQuad = 0; iQuad < volExp.NbFaces(); ++iQuad )
+ {
+ const SMDS_MeshNode** quadNodes = volExp.GetFaceNodes( iQuad );
+ if ( quadNodes[8]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_3DSPACE )
+ {
+ gp_XYZ p = calcTFI( 0.5, 0.5,
+ SMESH_TNodeXYZ( quadNodes[0] ), SMESH_TNodeXYZ( quadNodes[2] ),
+ SMESH_TNodeXYZ( quadNodes[4] ), SMESH_TNodeXYZ( quadNodes[6] ),
+ SMESH_TNodeXYZ( quadNodes[1] ), SMESH_TNodeXYZ( quadNodes[3] ),
+ SMESH_TNodeXYZ( quadNodes[5] ), SMESH_TNodeXYZ( quadNodes[7] ));
+ GetMeshDS()->MoveNode( quadNodes[8], p.X(), p.Y(), p.Z());
+ }
+ }
+
+ // fix the volume central node
+ vector<gp_XYZ> pointsOnShapes( SMESH_Block::ID_Shell );
+ const SMDS_MeshNode** hexNodes = volExp.GetNodes();
+
+ pointsOnShapes[ SMESH_Block::ID_V000 ] = SMESH_TNodeXYZ( hexNodes[ 0 ] );
+ pointsOnShapes[ SMESH_Block::ID_V100 ] = SMESH_TNodeXYZ( hexNodes[ 3 ] );
+ pointsOnShapes[ SMESH_Block::ID_V010 ] = SMESH_TNodeXYZ( hexNodes[ 1 ] );
+ pointsOnShapes[ SMESH_Block::ID_V110 ] = SMESH_TNodeXYZ( hexNodes[ 2 ] );
+ pointsOnShapes[ SMESH_Block::ID_V001 ] = SMESH_TNodeXYZ( hexNodes[ 4 ] );
+ pointsOnShapes[ SMESH_Block::ID_V101 ] = SMESH_TNodeXYZ( hexNodes[ 7 ] );
+ pointsOnShapes[ SMESH_Block::ID_V011 ] = SMESH_TNodeXYZ( hexNodes[ 5 ] );
+ pointsOnShapes[ SMESH_Block::ID_V111 ] = SMESH_TNodeXYZ( hexNodes[ 6 ] );
+
+ pointsOnShapes[ SMESH_Block::ID_Ex00 ] = SMESH_TNodeXYZ( hexNodes[ 11 ] );
+ pointsOnShapes[ SMESH_Block::ID_Ex10 ] = SMESH_TNodeXYZ( hexNodes[ 9 ] );
+ pointsOnShapes[ SMESH_Block::ID_E0y0 ] = SMESH_TNodeXYZ( hexNodes[ 8 ] );
+ pointsOnShapes[ SMESH_Block::ID_E1y0 ] = SMESH_TNodeXYZ( hexNodes[ 10 ] );
+ pointsOnShapes[ SMESH_Block::ID_Ex01 ] = SMESH_TNodeXYZ( hexNodes[ 15 ] );
+ pointsOnShapes[ SMESH_Block::ID_Ex11 ] = SMESH_TNodeXYZ( hexNodes[ 13 ] );
+ pointsOnShapes[ SMESH_Block::ID_E0y1 ] = SMESH_TNodeXYZ( hexNodes[ 12 ] );
+ pointsOnShapes[ SMESH_Block::ID_E1y1 ] = SMESH_TNodeXYZ( hexNodes[ 14 ] );
+ pointsOnShapes[ SMESH_Block::ID_E00z ] = SMESH_TNodeXYZ( hexNodes[ 16 ] );
+ pointsOnShapes[ SMESH_Block::ID_E10z ] = SMESH_TNodeXYZ( hexNodes[ 19 ] );
+ pointsOnShapes[ SMESH_Block::ID_E01z ] = SMESH_TNodeXYZ( hexNodes[ 17 ] );
+ pointsOnShapes[ SMESH_Block::ID_E11z ] = SMESH_TNodeXYZ( hexNodes[ 18 ] );
+
+ pointsOnShapes[ SMESH_Block::ID_Fxy0 ] = SMESH_TNodeXYZ( hexNodes[ 20 ] );
+ pointsOnShapes[ SMESH_Block::ID_Fxy1 ] = SMESH_TNodeXYZ( hexNodes[ 25 ] );
+ pointsOnShapes[ SMESH_Block::ID_Fx0z ] = SMESH_TNodeXYZ( hexNodes[ 21 ] );
+ pointsOnShapes[ SMESH_Block::ID_Fx1z ] = SMESH_TNodeXYZ( hexNodes[ 23 ] );
+ pointsOnShapes[ SMESH_Block::ID_F0yz ] = SMESH_TNodeXYZ( hexNodes[ 24 ] );
+ pointsOnShapes[ SMESH_Block::ID_F1yz ] = SMESH_TNodeXYZ( hexNodes[ 22 ] );
+
+ gp_XYZ nCenterParams(0.5, 0.5, 0.5), nCenterCoords;
+ SMESH_Block::ShellPoint( nCenterParams, pointsOnShapes, nCenterCoords );
+ GetMeshDS()->MoveNode( hexNodes[26],
+ nCenterCoords.X(), nCenterCoords.Y(), nCenterCoords.Z());
}
}
