X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FStdMeshers%2FStdMeshers_Hexa_3D.cxx;h=eeb6ad40e028aa68d42ff8927e5200cd3752870c;hp=a3ed4f11a7142cca9be57bc944b2e49de2af9d57;hb=9d0765db5d66008669b55c3388966a8de3755c92;hpb=2ac338d5787e31ab89824bf36610920e022c21f7 diff --git a/src/StdMeshers/StdMeshers_Hexa_3D.cxx b/src/StdMeshers/StdMeshers_Hexa_3D.cxx index a3ed4f11a..eeb6ad40e 100644 --- a/src/StdMeshers/StdMeshers_Hexa_3D.cxx +++ b/src/StdMeshers/StdMeshers_Hexa_3D.cxx @@ -1,1068 +1,1200 @@ -// SMESH SMESH : implementaion of SMESH idl descriptions +// Copyright (C) 2007-2020 CEA/DEN, EDF R&D, OPEN CASCADE // -// Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, -// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS -// -// This library is free software; you can redistribute it and/or -// modify it under the terms of the GNU Lesser General Public -// License as published by the Free Software Foundation; either -// version 2.1 of the License. -// -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -// Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public -// License along with this library; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -// -// See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org +// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, +// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS // +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; either +// version 2.1 of the License, or (at your option) any later version. // +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// Lesser General Public License for more details. // +// You should have received a copy of the GNU Lesser General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +// +// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com +// + +// SMESH SMESH : implementation of SMESH idl descriptions // File : StdMeshers_Hexa_3D.cxx // Moved here from SMESH_Hexa_3D.cxx // Author : Paul RASCLE, EDF // Module : SMESH -// $Header$ - -using namespace std; +// #include "StdMeshers_Hexa_3D.hxx" -#include "StdMeshers_Quadrangle_2D.hxx" + +#include "SMDS_MeshNode.hxx" +#include "SMESH_Comment.hxx" #include "SMESH_Gen.hxx" #include "SMESH_Mesh.hxx" +#include "SMESH_MesherHelper.hxx" #include "SMESH_subMesh.hxx" - -#include "SMDS_MeshElement.hxx" -#include "SMDS_MeshNode.hxx" -#include "SMDS_FacePosition.hxx" -#include "SMDS_VolumeTool.hxx" -#include "SMDS_VolumeOfNodes.hxx" - -#include -#include -#include -#include -#include +#include "StdMeshers_BlockRenumber.hxx" +#include "StdMeshers_CompositeHexa_3D.hxx" +#include "StdMeshers_FaceSide.hxx" +#include "StdMeshers_HexaFromSkin_3D.hxx" +#include "StdMeshers_Penta_3D.hxx" +#include "StdMeshers_Prism_3D.hxx" +#include "StdMeshers_Quadrangle_2D.hxx" +#include "StdMeshers_ViscousLayers.hxx" #include -#include -#include -#include -#include -#include -#include +#include +#include +#include +#include +#include +#include #include "utilities.h" #include "Utils_ExceptHandlers.hxx" -//modified by NIZNHY-PKV Wed Nov 17 15:31:58 2004 f -#include "StdMeshers_Penta_3D.hxx" +#include + +#include + +typedef SMESH_Comment TComm; + +using namespace std; + +static SMESH_ComputeErrorPtr ComputePentahedralMesh(SMESH_Mesh &, + const TopoDS_Shape &, + SMESH_ProxyMesh* proxyMesh=0); -static bool ComputePentahedralMesh(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape); -//modified by NIZNHY-PKV Wed Nov 17 15:32:00 2004 t +static bool EvaluatePentahedralMesh(SMESH_Mesh &, const TopoDS_Shape &, + MapShapeNbElems &); //============================================================================= /*! - * + * Constructor */ //============================================================================= -StdMeshers_Hexa_3D::StdMeshers_Hexa_3D(int hypId, int studyId, - SMESH_Gen * gen):SMESH_3D_Algo(hypId, studyId, gen) +StdMeshers_Hexa_3D::StdMeshers_Hexa_3D(int hypId, SMESH_Gen * gen) + :SMESH_3D_Algo(hypId, gen) { - MESSAGE("StdMeshers_Hexa_3D::StdMeshers_Hexa_3D"); - _name = "Hexa_3D"; -// _shapeType = TopAbs_SOLID; - _shapeType = (1 << TopAbs_SHELL) | (1 << TopAbs_SOLID); // 1 bit /shape type -// MESSAGE("_shapeType octal " << oct << _shapeType); - for (int i = 0; i < 6; i++) - _quads[i] = 0; + _name = "Hexa_3D"; + _shapeType = (1 << TopAbs_SHELL) | (1 << TopAbs_SOLID); // 1 bit /shape type + _requireShape = false; + _compatibleHypothesis.push_back("ViscousLayers"); + _compatibleHypothesis.push_back("BlockRenumber"); + _quadAlgo = new StdMeshers_Quadrangle_2D( gen->GetANewId(), _gen ); } //============================================================================= /*! - * + * Destructor */ //============================================================================= StdMeshers_Hexa_3D::~StdMeshers_Hexa_3D() { - MESSAGE("StdMeshers_Hexa_3D::~StdMeshers_Hexa_3D"); - for (int i = 0; i < 6; i++) - StdMeshers_Quadrangle_2D::QuadDelete(_quads[i]); + delete _quadAlgo; + _quadAlgo = 0; } //============================================================================= /*! - * + * Retrieves defined hypotheses */ //============================================================================= bool StdMeshers_Hexa_3D::CheckHypothesis - (SMESH_Mesh& aMesh, - const TopoDS_Shape& aShape, + (SMESH_Mesh& aMesh, + const TopoDS_Shape& aShape, SMESH_Hypothesis::Hypothesis_Status& aStatus) { - //MESSAGE("StdMeshers_Hexa_3D::CheckHypothesis"); - - bool isOk = true; - aStatus = SMESH_Hypothesis::HYP_OK; + // check nb of faces in the shape +/* PAL16229 + aStatus = SMESH_Hypothesis::HYP_BAD_GEOMETRY; + int nbFaces = 0; + for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next()) + if ( ++nbFaces > 6 ) + break; + if ( nbFaces != 6 ) + return false; +*/ + + _viscousLayersHyp = nullptr; + _blockRenumberHyp = nullptr; + + const list& hyps = + GetUsedHypothesis(aMesh, aShape, /*ignoreAuxiliary=*/false); + list ::const_iterator h = hyps.begin(); + if ( h == hyps.end()) + { + aStatus = SMESH_Hypothesis::HYP_OK; + return true; + } - // nothing to check + // only StdMeshers_ViscousLayers can be used + aStatus = HYP_OK; + for ( ; h != hyps.end(); ++h ) + { + if ( !_viscousLayersHyp && + (_viscousLayersHyp = dynamic_cast< const StdMeshers_ViscousLayers*> ( *h ))) + continue; + if ( !_blockRenumberHyp && + (_blockRenumberHyp = dynamic_cast< const StdMeshers_BlockRenumber*> ( *h ))) + continue; + break; + } + if ((int) hyps.size() != (bool)_viscousLayersHyp + (bool)_blockRenumberHyp ) + aStatus = HYP_INCOMPATIBLE; + else + { + if ( _viscousLayersHyp ) + if ( !error( _viscousLayersHyp->CheckHypothesis( aMesh, aShape, aStatus ))) + aStatus = HYP_BAD_PARAMETER; + + if ( _blockRenumberHyp && aStatus == HYP_OK ) + error( _blockRenumberHyp->CheckHypothesis( aMesh, aShape )); + } - return isOk; + return aStatus == HYP_OK; } -//======================================================================= -//function : findIJ -//purpose : return i,j of the node -//======================================================================= - -static bool findIJ (const SMDS_MeshNode* node, const FaceQuadStruct * quad, int& I, int& J) +namespace { - I = J = 0; - const SMDS_FacePosition* fpos = - static_cast(node->GetPosition().get()); - if ( ! fpos ) return false; - gp_Pnt2d uv( fpos->GetUParameter(), fpos->GetVParameter() ); - - double minDist = DBL_MAX; - int nbhoriz = Min(quad->nbPts[0], quad->nbPts[2]); - int nbvertic = Min(quad->nbPts[1], quad->nbPts[3]); - for (int i = 1; i < nbhoriz - 1; i++) { - for (int j = 1; j < nbvertic - 1; j++) { - int ij = j * nbhoriz + i; - gp_Pnt2d uv2( quad->uv_grid[ij].u, quad->uv_grid[ij].v ); - double dist = uv.SquareDistance( uv2 ); - if ( dist < minDist ) { - minDist = dist; - I = i; - J = j; + //============================================================================= + + typedef boost::shared_ptr< FaceQuadStruct > FaceQuadStructPtr; + typedef std::vector TXYZColumn; + + // symbolic names of box sides + enum EBoxSides{ B_BOTTOM=0, B_RIGHT, B_TOP, B_LEFT, B_FRONT, B_BACK, B_NB_SIDES }; + + // symbolic names of sides of quadrangle + enum EQuadSides{ Q_BOTTOM=0, Q_RIGHT, Q_TOP, Q_LEFT, Q_NB_SIDES }; + + enum EAxes{ COO_X=1, COO_Y, COO_Z }; + + //============================================================================= + /*! + * \brief Container of nodes of structured mesh on a qudrangular geom FACE + */ + struct _FaceGrid + { + // face sides + FaceQuadStructPtr _quad; + + // map of (node parameter on EDGE) to (column (vector) of nodes) + TParam2ColumnMap _u2nodesMap; + + // node column's taken from _u2nodesMap taking into account sub-shape orientation + vector _columns; + + // columns of normalized parameters of nodes within the unitary cube + vector _ijkColumns; + + // geometry of a cube side + TopoDS_Face _sideF; + + const SMDS_MeshNode* GetNode(int iCol, int iRow) const + { + return _columns[iCol][iRow]; + } + gp_XYZ GetXYZ(int iCol, int iRow) const + { + return SMESH_TNodeXYZ( GetNode( iCol, iRow )); + } + gp_XYZ& GetIJK(int iCol, int iRow) + { + return _ijkColumns[iCol][iRow]; + } + }; + + //================================================================================ + /*! + * \brief Converter of a pair of integers to a sole index + */ + struct _Indexer + { + int _xSize, _ySize; + _Indexer( int xSize, int ySize ): _xSize(xSize), _ySize(ySize) {} + int size() const { return _xSize * _ySize; } + int operator()(const int x, const int y) const { return y * _xSize + x; } + }; + + //================================================================================ + /*! + * \brief Finds FaceQuadStruct having a side equal to a given one and rearranges + * the found FaceQuadStruct::side to have the given side at a Q_BOTTOM place + */ + FaceQuadStructPtr getQuadWithBottom( StdMeshers_FaceSidePtr side, + FaceQuadStructPtr quad[ 6 ]) + { + FaceQuadStructPtr foundQuad; + for ( int i = 1; i < 6; ++i ) + { + if ( !quad[i] ) continue; + for ( size_t iS = 0; iS < quad[i]->side.size(); ++iS ) + { + const StdMeshers_FaceSidePtr side2 = quad[i]->side[iS]; + if (( side->FirstVertex().IsSame( side2->FirstVertex() ) || + side->FirstVertex().IsSame( side2->LastVertex() )) + && + ( side->LastVertex().IsSame( side2->FirstVertex() ) || + side->LastVertex().IsSame( side2->LastVertex() )) + ) + { + if ( iS != Q_BOTTOM ) + { + vector< FaceQuadStruct::Side > newSides; + for ( size_t j = iS; j < quad[i]->side.size(); ++j ) + newSides.push_back( quad[i]->side[j] ); + for ( size_t j = 0; j < iS; ++j ) + newSides.push_back( quad[i]->side[j] ); + quad[i]->side.swap( newSides ); + } + foundQuad.swap(quad[i]); + return foundQuad; + } } } + return foundQuad; } - return true; -} -//============================================================================= -/*! - * Hexahedron mesh on hexaedron like form - * -0. - shape and face mesh verification - * -1. - identify faces and vertices of the "cube" - * -2. - Algorithm from: - * "Application de l'interpolation transfinie à la création de maillages - * C0 ou G1 continus sur des triangles, quadrangles, tetraedres, pentaedres - * et hexaedres déformés." - * Alain PERONNET - 8 janvier 1999 - */ -//============================================================================= + //================================================================================ + /*! + * \brief Put quads to aCubeSide in the order of enum EBoxSides + */ + //================================================================================ + + bool arrangeQuads( FaceQuadStructPtr quad[ 6 ], _FaceGrid aCubeSide[ 6 ], bool reverseBottom ) + { + swap( aCubeSide[B_BOTTOM]._quad, quad[0] ); + if ( reverseBottom ) + swap( aCubeSide[B_BOTTOM]._quad->side[ Q_RIGHT],// direct the bottom normal inside cube + aCubeSide[B_BOTTOM]._quad->side[ Q_LEFT ] ); + + aCubeSide[B_FRONT]._quad = getQuadWithBottom( aCubeSide[B_BOTTOM]._quad->side[Q_BOTTOM], quad ); + aCubeSide[B_RIGHT]._quad = getQuadWithBottom( aCubeSide[B_BOTTOM]._quad->side[Q_RIGHT ], quad ); + aCubeSide[B_BACK ]._quad = getQuadWithBottom( aCubeSide[B_BOTTOM]._quad->side[Q_TOP ], quad ); + aCubeSide[B_LEFT ]._quad = getQuadWithBottom( aCubeSide[B_BOTTOM]._quad->side[Q_LEFT ], quad ); + if ( aCubeSide[B_FRONT ]._quad ) + aCubeSide[B_TOP]._quad = getQuadWithBottom( aCubeSide[B_FRONT ]._quad->side[Q_TOP ], quad ); + + for ( int i = 1; i < 6; ++i ) + if ( !aCubeSide[i]._quad ) + return false; + return true; + } -bool StdMeshers_Hexa_3D::Compute(SMESH_Mesh & aMesh, - const TopoDS_Shape & aShape)throw(SALOME_Exception) -{ - Unexpect aCatch(SalomeException); - MESSAGE("StdMeshers_Hexa_3D::Compute"); - //bool isOk = false; - SMESHDS_Mesh * meshDS = aMesh.GetMeshDS(); - //SMESH_subMesh *theSubMesh = aMesh.GetSubMesh(aShape); - //const SMESHDS_SubMesh *& subMeshDS = theSubMesh->GetSubMeshDS(); - - // 0. - shape and face mesh verification - // 0.1 - shape must be a solid (or a shell) with 6 faces - //MESSAGE("---"); - - vector < SMESH_subMesh * >meshFaces; - for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next()) - { - SMESH_subMesh *aSubMesh = aMesh.GetSubMeshContaining(exp.Current()); - ASSERT(aSubMesh); - meshFaces.push_back(aSubMesh); - } - if (meshFaces.size() != 6) - { - SCRUTE(meshFaces.size()); -// ASSERT(0); - return false; - } - - // 0.2 - is each face meshed with Quadrangle_2D? (so, with a wire of 4 edges) - //MESSAGE("---"); - - for (int i = 0; i < 6; i++) - { - TopoDS_Shape aFace = meshFaces[i]->GetSubShape(); - SMESH_Algo *algo = _gen->GetAlgo(aMesh, aFace); - string algoName = algo->GetName(); - bool isAllQuad = false; - if (algoName == "Quadrangle_2D") { - SMESHDS_SubMesh * sm = meshDS->MeshElements( aFace ); - if ( sm ) { - isAllQuad = true; - SMDS_ElemIteratorPtr eIt = sm->GetElements(); - while ( isAllQuad && eIt->more() ) - isAllQuad = ( eIt->next()->NbNodes() == 4 ); - } + //================================================================================ + /*! + * \brief Rearrange block sides according to StdMeshers_BlockRenumber hypothesis + */ + //================================================================================ + + bool arrangeForRenumber( _FaceGrid blockSide[ 6 ], + TopoDS_Vertex& v000, + TopoDS_Vertex& v001 ) + { + std::swap( blockSide[B_BOTTOM]._quad->side[ Q_RIGHT],// restore after arrangeQuads() + blockSide[B_BOTTOM]._quad->side[ Q_LEFT ] ); + + // find v000 + TopTools_MapOfShape cornerVertices; + cornerVertices.Add( blockSide[B_BOTTOM]._quad->side[Q_BOTTOM].grid->LastVertex() ); + cornerVertices.Add( blockSide[B_BOTTOM]._quad->side[Q_BOTTOM].grid->FirstVertex() ); + cornerVertices.Add( blockSide[B_BOTTOM]._quad->side[Q_TOP ].grid->LastVertex() ); + cornerVertices.Add( blockSide[B_BOTTOM]._quad->side[Q_TOP ].grid->FirstVertex() ); + cornerVertices.Add( blockSide[B_TOP ]._quad->side[Q_BOTTOM].grid->FirstVertex() ); + cornerVertices.Add( blockSide[B_TOP ]._quad->side[Q_BOTTOM].grid->LastVertex() ); + cornerVertices.Add( blockSide[B_TOP ]._quad->side[Q_TOP ].grid->FirstVertex() ); + cornerVertices.Add( blockSide[B_TOP ]._quad->side[Q_TOP ].grid->LastVertex() ); + + if ( v000.IsNull() ) + { + // block CS is not defined; + // renumber only if the block has an edge parallel to an axis of global CS + + v000 = StdMeshers_RenumberHelper::GetVertex000( cornerVertices ); + } + + Bnd_B3d bbox; + for ( auto it = cornerVertices.cbegin(); it != cornerVertices.cend(); ++it ) + bbox.Add( BRep_Tool::Pnt( TopoDS::Vertex( *it ))); + double tol = 1e-5 * Sqrt( bbox.SquareExtent() ); + + // get block edges starting at v000 + + std::vector< StdMeshers_FaceSidePtr > edgesAtV000; + std::vector< gp_Vec > edgeDir; + std::vector< int > iParallel; // 0 - none, 1 - X, 2 - Y, 3 - Z + TopTools_MapOfShape lastVertices; + for ( int iQ = 0; iQ < 6; ++iQ ) + { + FaceQuadStructPtr quad = blockSide[iQ]._quad; + for ( size_t iS = 0; iS < quad->side.size() && edgesAtV000.size() < 3; ++iS ) + { + StdMeshers_FaceSidePtr edge = quad->side[iS]; + TopoDS_Vertex v1 = edge->FirstVertex(), v2 = edge->LastVertex(); + if (( v1.IsSame( v000 ) && !lastVertices.Contains( v2 )) || + ( v2.IsSame( v000 ) && !lastVertices.Contains( v1 ))) + { + bool reverse = v2.IsSame( v000 ); + if ( reverse ) + std::swap( v1, v2 ); + lastVertices.Add( v2 ); + + edgesAtV000.push_back( edge ); + + gp_Pnt pf = BRep_Tool::Pnt( v1 ); + gp_Pnt pl = BRep_Tool::Pnt( v2 ); + gp_Vec vec( pf, pl ); + edgeDir.push_back( vec ); + + iParallel.push_back( 0 ); + if ( !v001.IsNull() ) + { + if ( v001.IsSame( v2 )) + iParallel.back() = 3; } - if ( ! isAllQuad ) { - //modified by NIZNHY-PKV Wed Nov 17 15:31:37 2004 f - bool bIsOk; - // - bIsOk=ComputePentahedralMesh(aMesh, aShape); - if (bIsOk) { - return true; + else + { + bool isStraight = true; + for ( int iE = 0; iE < edge->NbEdges() && isStraight; ++iE ) + isStraight = SMESH_Algo::IsStraight( edge->Edge( iE )); + + // is parallel to a GCS axis? + if ( isStraight ) + { + int nbDiff = (( Abs( vec.X() ) > tol ) + + ( Abs( vec.Y() ) > tol ) + + ( Abs( vec.Z() ) > tol ) ); + if ( nbDiff == 1 ) + iParallel.back() = ( Abs( vec.X() ) > tol ) ? 1 : ( Abs( vec.Y() ) > tol ) ? 2 : 3; } - //modified by NIZNHY-PKV Wed Nov 17 15:31:42 2004 t - SCRUTE(algoName); - // ASSERT(0); - return false; - } - StdMeshers_Quadrangle_2D *quadAlgo = - dynamic_cast < StdMeshers_Quadrangle_2D * >(algo); - ASSERT(quadAlgo); - try - { - _quads[i] = quadAlgo->CheckAnd2Dcompute(aMesh, aFace); - // *** to delete after usage - } - catch(SALOME_Exception & S_ex) - { - // *** delete _quads - // *** throw exception - // ASSERT(0); - return false; - } - - // 0.2.1 - number of points on the opposite edges must be the same - if (_quads[i]->nbPts[0] != _quads[i]->nbPts[2] || - _quads[i]->nbPts[1] != _quads[i]->nbPts[3]) - { - MESSAGE("different number of points on the opposite edges of face " << i); - // ASSERT(0); - return false; - } - } - - // 1. - identify faces and vertices of the "cube" - // 1.1 - ancestor maps vertex->edges in the cube - //MESSAGE("---"); - - TopTools_IndexedDataMapOfShapeListOfShape MS; - TopExp::MapShapesAndAncestors(aShape, TopAbs_VERTEX, TopAbs_EDGE, MS); - - // 1.2 - first face is choosen as face Y=0 of the unit cube - //MESSAGE("---"); - - const TopoDS_Shape & aFace = meshFaces[0]->GetSubShape(); - const TopoDS_Face & F = TopoDS::Face(aFace); - - // 1.3 - identify the 4 vertices of the face Y=0: V000, V100, V101, V001 - //MESSAGE("---"); - - int i = 0; - TopoDS_Edge E = _quads[0]->edge[i]; //edge will be Y=0,Z=0 on unit cube - double f, l; - Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l); - TopoDS_Vertex VFirst, VLast; - TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l - bool isForward = - (((l - f) * (_quads[0]->last[i] - _quads[0]->first[i])) > 0); - - if (isForward) - { - _cube.V000 = VFirst; // will be (0,0,0) on the unit cube - _cube.V100 = VLast; // will be (1,0,0) on the unit cube - } - else - { - _cube.V000 = VLast; - _cube.V100 = VFirst; - } - - i = 1; - E = _quads[0]->edge[i]; - C2d = BRep_Tool::CurveOnSurface(E, F, f, l); - TopExp::Vertices(E, VFirst, VLast); - isForward = (((l - f) * (_quads[0]->last[i] - _quads[0]->first[i])) > 0); - if (isForward) - _cube.V101 = VLast; // will be (1,0,1) on the unit cube - else - _cube.V101 = VFirst; - - i = 2; - E = _quads[0]->edge[i]; - C2d = BRep_Tool::CurveOnSurface(E, F, f, l); - TopExp::Vertices(E, VFirst, VLast); - isForward = (((l - f) * (_quads[0]->last[i] - _quads[0]->first[i])) > 0); - if (isForward) - _cube.V001 = VLast; // will be (0,0,1) on the unit cube - else - _cube.V001 = VFirst; - - // 1.4 - find edge X=0, Z=0 (ancestor of V000 not in face Y=0) - // - find edge X=1, Z=0 (ancestor of V100 not in face Y=0) - // - find edge X=1, Z=1 (ancestor of V101 not in face Y=0) - // - find edge X=0, Z=1 (ancestor of V001 not in face Y=0) - //MESSAGE("---"); - - TopoDS_Edge E_0Y0 = EdgeNotInFace(aMesh, aShape, F, _cube.V000, MS); - ASSERT(!E_0Y0.IsNull()); - - TopoDS_Edge E_1Y0 = EdgeNotInFace(aMesh, aShape, F, _cube.V100, MS); - ASSERT(!E_1Y0.IsNull()); - - TopoDS_Edge E_1Y1 = EdgeNotInFace(aMesh, aShape, F, _cube.V101, MS); - ASSERT(!E_1Y1.IsNull()); - - TopoDS_Edge E_0Y1 = EdgeNotInFace(aMesh, aShape, F, _cube.V001, MS); - ASSERT(!E_0Y1.IsNull()); - - // 1.5 - identify the 4 vertices in face Y=1: V010, V110, V111, V011 - //MESSAGE("---"); - - TopExp::Vertices(E_0Y0, VFirst, VLast); - if (VFirst.IsSame(_cube.V000)) - _cube.V010 = VLast; - else - _cube.V010 = VFirst; - - TopExp::Vertices(E_1Y0, VFirst, VLast); - if (VFirst.IsSame(_cube.V100)) - _cube.V110 = VLast; - else - _cube.V110 = VFirst; - - TopExp::Vertices(E_1Y1, VFirst, VLast); - if (VFirst.IsSame(_cube.V101)) - _cube.V111 = VLast; - else - _cube.V111 = VFirst; - - TopExp::Vertices(E_0Y1, VFirst, VLast); - if (VFirst.IsSame(_cube.V001)) - _cube.V011 = VLast; - else - _cube.V011 = VFirst; - - // 1.6 - find remaining faces given 4 vertices - //MESSAGE("---"); - - _indY0 = 0; - _cube.quad_Y0 = _quads[_indY0]; - - _indY1 = GetFaceIndex(aMesh, aShape, meshFaces, - _cube.V010, _cube.V011, _cube.V110, _cube.V111); - _cube.quad_Y1 = _quads[_indY1]; - - _indZ0 = GetFaceIndex(aMesh, aShape, meshFaces, - _cube.V000, _cube.V010, _cube.V100, _cube.V110); - _cube.quad_Z0 = _quads[_indZ0]; - - _indZ1 = GetFaceIndex(aMesh, aShape, meshFaces, - _cube.V001, _cube.V011, _cube.V101, _cube.V111); - _cube.quad_Z1 = _quads[_indZ1]; - - _indX0 = GetFaceIndex(aMesh, aShape, meshFaces, - _cube.V000, _cube.V001, _cube.V010, _cube.V011); - _cube.quad_X0 = _quads[_indX0]; - - _indX1 = GetFaceIndex(aMesh, aShape, meshFaces, - _cube.V100, _cube.V101, _cube.V110, _cube.V111); - _cube.quad_X1 = _quads[_indX1]; - - //MESSAGE("---"); - - // 1.7 - get convertion coefs from face 2D normalized to 3D normalized - - Conv2DStruct cx0; // for face X=0 - Conv2DStruct cx1; // for face X=1 - Conv2DStruct cy0; - Conv2DStruct cy1; - Conv2DStruct cz0; - Conv2DStruct cz1; - - GetConv2DCoefs(*_cube.quad_X0, meshFaces[_indX0]->GetSubShape(), - _cube.V000, _cube.V010, _cube.V011, _cube.V001, cx0); - GetConv2DCoefs(*_cube.quad_X1, meshFaces[_indX1]->GetSubShape(), - _cube.V100, _cube.V110, _cube.V111, _cube.V101, cx1); - GetConv2DCoefs(*_cube.quad_Y0, meshFaces[_indY0]->GetSubShape(), - _cube.V000, _cube.V100, _cube.V101, _cube.V001, cy0); - GetConv2DCoefs(*_cube.quad_Y1, meshFaces[_indY1]->GetSubShape(), - _cube.V010, _cube.V110, _cube.V111, _cube.V011, cy1); - GetConv2DCoefs(*_cube.quad_Z0, meshFaces[_indZ0]->GetSubShape(), - _cube.V000, _cube.V100, _cube.V110, _cube.V010, cz0); - GetConv2DCoefs(*_cube.quad_Z1, meshFaces[_indZ1]->GetSubShape(), - _cube.V001, _cube.V101, _cube.V111, _cube.V011, cz1); - - // 1.8 - create a 3D structure for normalized values - - //MESSAGE("---"); - int nbx = _cube.quad_Z0->nbPts[0]; - if (cz0.a1 == 0.) nbx = _cube.quad_Z0->nbPts[1]; - - int nby = _cube.quad_X0->nbPts[0]; - if (cx0.a1 == 0.) nby = _cube.quad_X0->nbPts[1]; - - int nbz = _cube.quad_Y0->nbPts[0]; - if (cy0.a1 != 0.) nbz = _cube.quad_Y0->nbPts[1]; - - int i1, j1, nbxyz = nbx * nby * nbz; - Point3DStruct *np = new Point3DStruct[nbxyz]; - - // 1.9 - store node indexes of faces - - { - const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX0]->GetSubShape()); - - faceQuadStruct *quad = _cube.quad_X0; - int i = 0; // j = x/face , k = y/face - int nbdown = quad->nbPts[0]; - int nbright = quad->nbPts[1]; - - - SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes(); - - while(itf->more()) - { - const SMDS_MeshNode * node = itf->next(); - findIJ( node, quad, i1, j1 ); - int ij1 = j1 * nbdown + i1; - quad->uv_grid[ij1].node = node; - } - - for (int i1 = 0; i1 < nbdown; i1++) - for (int j1 = 0; j1 < nbright; j1++) - { - int ij1 = j1 * nbdown + i1; - int j = cx0.ia * i1 + cx0.ib * j1 + cx0.ic; // j = x/face - int k = cx0.ja * i1 + cx0.jb * j1 + cx0.jc; // k = y/face - int ijk = k * nbx * nby + j * nbx + i; - //MESSAGE(" "<uv_grid[ij1].node; - //SCRUTE(np[ijk].nodeId); - } - } - - { - const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX1]->GetSubShape()); - - SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes(); - - faceQuadStruct *quad = _cube.quad_X1; - int i = nbx - 1; // j = x/face , k = y/face - int nbdown = quad->nbPts[0]; - int nbright = quad->nbPts[1]; - - while(itf->more()) - { - const SMDS_MeshNode * node = itf->next(); - findIJ( node, quad, i1, j1 ); - int ij1 = j1 * nbdown + i1; - quad->uv_grid[ij1].node = node; - } - - for (int i1 = 0; i1 < nbdown; i1++) - for (int j1 = 0; j1 < nbright; j1++) - { - int ij1 = j1 * nbdown + i1; - int j = cx1.ia * i1 + cx1.ib * j1 + cx1.ic; // j = x/face - int k = cx1.ja * i1 + cx1.jb * j1 + cx1.jc; // k = y/face - int ijk = k * nbx * nby + j * nbx + i; - //MESSAGE(" "<uv_grid[ij1].node; - //SCRUTE(np[ijk].nodeId); - } - } - - { - const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY0]->GetSubShape()); - - SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes(); - - faceQuadStruct *quad = _cube.quad_Y0; - int j = 0; // i = x/face , k = y/face - int nbdown = quad->nbPts[0]; - int nbright = quad->nbPts[1]; - - while(itf->more()) - { - const SMDS_MeshNode * node = itf->next(); - findIJ( node, quad, i1, j1 ); - int ij1 = j1 * nbdown + i1; - quad->uv_grid[ij1].node = node; - } - - for (int i1 = 0; i1 < nbdown; i1++) - for (int j1 = 0; j1 < nbright; j1++) - { - int ij1 = j1 * nbdown + i1; - int i = cy0.ia * i1 + cy0.ib * j1 + cy0.ic; // i = x/face - int k = cy0.ja * i1 + cy0.jb * j1 + cy0.jc; // k = y/face - int ijk = k * nbx * nby + j * nbx + i; - //MESSAGE(" "<uv_grid[ij1].node; - //SCRUTE(np[ijk].nodeId); - } - } - - { - const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY1]->GetSubShape()); - - SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes(); - - faceQuadStruct *quad = _cube.quad_Y1; - int j = nby - 1; // i = x/face , k = y/face - int nbdown = quad->nbPts[0]; - int nbright = quad->nbPts[1]; - - while(itf->more()) - { - const SMDS_MeshNode * node = itf->next(); - findIJ( node, quad, i1, j1 ); - int ij1 = j1 * nbdown + i1; - quad->uv_grid[ij1].node = node; - } - - for (int i1 = 0; i1 < nbdown; i1++) - for (int j1 = 0; j1 < nbright; j1++) - { - int ij1 = j1 * nbdown + i1; - int i = cy1.ia * i1 + cy1.ib * j1 + cy1.ic; // i = x/face - int k = cy1.ja * i1 + cy1.jb * j1 + cy1.jc; // k = y/face - int ijk = k * nbx * nby + j * nbx + i; - //MESSAGE(" "<uv_grid[ij1].node; - //SCRUTE(np[ijk].nodeId); - } - } - - { - const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ0]->GetSubShape()); - - SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes(); - - faceQuadStruct *quad = _cube.quad_Z0; - int k = 0; // i = x/face , j = y/face - int nbdown = quad->nbPts[0]; - int nbright = quad->nbPts[1]; - - while(itf->more()) - { - const SMDS_MeshNode * node = itf->next(); - findIJ( node, quad, i1, j1 ); - int ij1 = j1 * nbdown + i1; - quad->uv_grid[ij1].node = node; - } - - for (int i1 = 0; i1 < nbdown; i1++) - for (int j1 = 0; j1 < nbright; j1++) - { - int ij1 = j1 * nbdown + i1; - int i = cz0.ia * i1 + cz0.ib * j1 + cz0.ic; // i = x/face - int j = cz0.ja * i1 + cz0.jb * j1 + cz0.jc; // j = y/face - int ijk = k * nbx * nby + j * nbx + i; - //MESSAGE(" "<uv_grid[ij1].node; - //SCRUTE(np[ijk].nodeId); - } - } - - { - const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ1]->GetSubShape()); - - SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes(); - - faceQuadStruct *quad = _cube.quad_Z1; - int k = nbz - 1; // i = x/face , j = y/face - int nbdown = quad->nbPts[0]; - int nbright = quad->nbPts[1]; - - while(itf->more()) - { - const SMDS_MeshNode * node = itf->next(); - findIJ( node, quad, i1, j1 ); - int ij1 = j1 * nbdown + i1; - quad->uv_grid[ij1].node = node; - } - - for (int i1 = 0; i1 < nbdown; i1++) - for (int j1 = 0; j1 < nbright; j1++) - { - int ij1 = j1 * nbdown + i1; - int i = cz1.ia * i1 + cz1.ib * j1 + cz1.ic; // i = x/face - int j = cz1.ja * i1 + cz1.jb * j1 + cz1.jc; // j = y/face - int ijk = k * nbx * nby + j * nbx + i; - //MESSAGE(" "<uv_grid[ij1].node; - //SCRUTE(np[ijk].nodeId); - } - } - - // 2.0 - for each node of the cube: - // - get the 8 points 3D = 8 vertices of the cube - // - get the 12 points 3D on the 12 edges of the cube - // - get the 6 points 3D on the 6 faces with their ID - // - compute the point 3D - // - store the point 3D in SMESHDS, store its ID in 3D structure - - int shapeID = meshDS->ShapeToIndex( aShape ); - - Pt3 p000, p001, p010, p011, p100, p101, p110, p111; - Pt3 px00, px01, px10, px11; - Pt3 p0y0, p0y1, p1y0, p1y1; - Pt3 p00z, p01z, p10z, p11z; - Pt3 pxy0, pxy1, px0z, px1z, p0yz, p1yz; - - GetPoint(p000, 0, 0, 0, nbx, nby, nbz, np, meshDS); - GetPoint(p001, 0, 0, nbz - 1, nbx, nby, nbz, np, meshDS); - GetPoint(p010, 0, nby - 1, 0, nbx, nby, nbz, np, meshDS); - GetPoint(p011, 0, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS); - GetPoint(p100, nbx - 1, 0, 0, nbx, nby, nbz, np, meshDS); - GetPoint(p101, nbx - 1, 0, nbz - 1, nbx, nby, nbz, np, meshDS); - GetPoint(p110, nbx - 1, nby - 1, 0, nbx, nby, nbz, np, meshDS); - GetPoint(p111, nbx - 1, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS); - - for (int i = 1; i < nbx - 1; i++) - { - for (int j = 1; j < nby - 1; j++) - { - for (int k = 1; k < nbz - 1; k++) - { - // *** seulement maillage regulier - // 12 points on edges - GetPoint(px00, i, 0, 0, nbx, nby, nbz, np, meshDS); - GetPoint(px01, i, 0, nbz - 1, nbx, nby, nbz, np, meshDS); - GetPoint(px10, i, nby - 1, 0, nbx, nby, nbz, np, meshDS); - GetPoint(px11, i, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS); - - GetPoint(p0y0, 0, j, 0, nbx, nby, nbz, np, meshDS); - GetPoint(p0y1, 0, j, nbz - 1, nbx, nby, nbz, np, meshDS); - GetPoint(p1y0, nbx - 1, j, 0, nbx, nby, nbz, np, meshDS); - GetPoint(p1y1, nbx - 1, j, nbz - 1, nbx, nby, nbz, np, meshDS); - - GetPoint(p00z, 0, 0, k, nbx, nby, nbz, np, meshDS); - GetPoint(p01z, 0, nby - 1, k, nbx, nby, nbz, np, meshDS); - GetPoint(p10z, nbx - 1, 0, k, nbx, nby, nbz, np, meshDS); - GetPoint(p11z, nbx - 1, nby - 1, k, nbx, nby, nbz, np, meshDS); - - // 12 points on faces - GetPoint(pxy0, i, j, 0, nbx, nby, nbz, np, meshDS); - GetPoint(pxy1, i, j, nbz - 1, nbx, nby, nbz, np, meshDS); - GetPoint(px0z, i, 0, k, nbx, nby, nbz, np, meshDS); - GetPoint(px1z, i, nby - 1, k, nbx, nby, nbz, np, meshDS); - GetPoint(p0yz, 0, j, k, nbx, nby, nbz, np, meshDS); - GetPoint(p1yz, nbx - 1, j, k, nbx, nby, nbz, np, meshDS); - - int ijk = k * nbx * nby + j * nbx + i; - double x = double (i) / double (nbx - 1); // *** seulement - double y = double (j) / double (nby - 1); // *** maillage - double z = double (k) / double (nbz - 1); // *** regulier - - Pt3 X; - for (int i = 0; i < 3; i++) - { - X[i] = - (1 - x) * p0yz[i] + x * p1yz[i] - + (1 - y) * px0z[i] + y * px1z[i] - + (1 - z) * pxy0[i] + z * pxy1[i] - - (1 - x) * ((1 - y) * p00z[i] + y * p01z[i]) - - x * ((1 - y) * p10z[i] + y * p11z[i]) - - (1 - y) * ((1 - z) * px00[i] + z * px01[i]) - - y * ((1 - z) * px10[i] + z * px11[i]) - - (1 - z) * ((1 - x) * p0y0[i] + x * p1y0[i]) - - z * ((1 - x) * p0y1[i] + x * p1y1[i]) - + (1 - x) * ((1 - y) * ((1 - z) * p000[i] + z * p001[i]) - + y * ((1 - z) * p010[i] + z * p011[i])) - + x * ((1 - y) * ((1 - z) * p100[i] + z * p101[i]) - + y * ((1 - z) * p110[i] + z * p111[i])); - } - - SMDS_MeshNode * node = meshDS->AddNode(X[0], X[1], X[2]); - np[ijk].node = node; - meshDS->SetNodeInVolume(node, shapeID); - } - } - } - - // find orientation of furute volumes according to MED convention - vector< bool > forward( nbx * nby ); - SMDS_VolumeTool vTool; - for (int i = 0; i < nbx - 1; i++) - for (int j = 0; j < nby - 1; j++) + else + { + edgeDir.back() = gp_Vec( pf, edge->Value3d( reverse ? 0.99 : 0.01 )); + } + } + } + } + } + if ( std::accumulate( iParallel.begin(), iParallel.end(), 0 ) == 0 ) + return false; + + // find edge OZ and edge OX + StdMeshers_FaceSidePtr edgeOZ, edgeOX; + auto iZIt = std::find( iParallel.begin(), iParallel.end(), 3 ); + if ( iZIt != iParallel.end() ) { - int n1 = j * nbx + i; - int n2 = j * nbx + i + 1; - int n3 = (j + 1) * nbx + i + 1; - int n4 = (j + 1) * nbx + i; - int n5 = nbx * nby + j * nbx + i; - int n6 = nbx * nby + j * nbx + i + 1; - int n7 = nbx * nby + (j + 1) * nbx + i + 1; - int n8 = nbx * nby + (j + 1) * nbx + i; - - SMDS_VolumeOfNodes tmpVol (np[n1].node,np[n2].node,np[n3].node,np[n4].node, - np[n5].node,np[n6].node,np[n7].node,np[n8].node); - vTool.Set( &tmpVol ); - forward[ n1 ] = vTool.IsForward(); + int i = std::distance( iParallel.begin(), iZIt ); + edgeOZ = edgesAtV000[ i ]; + int iE1 = SMESH_MesherHelper::WrapIndex( i + 1, edgesAtV000.size() ); + int iE2 = SMESH_MesherHelper::WrapIndex( i + 2, edgesAtV000.size() ); + if (( edgeDir[ iE1 ] ^ edgeDir[ iE2 ] ) * edgeDir[ i ] < 0 ) + std::swap( iE1, iE2 ); + edgeOX = edgesAtV000[ iE1 ]; + } + else + { + for ( size_t i = 0; i < edgesAtV000.size(); ++i ) + { + if ( !iParallel[ i ] ) + continue; + int iE1 = SMESH_MesherHelper::WrapIndex( i + 1, edgesAtV000.size() ); + int iE2 = SMESH_MesherHelper::WrapIndex( i + 2, edgesAtV000.size() ); + if (( edgeDir[ iE1 ] ^ edgeDir[ iE2 ] ) * edgeDir[ i ] < 0 ) + std::swap( iE1, iE2 ); + edgeOZ = edgesAtV000[ iParallel[i] == 1 ? iE2 : iE1 ]; + edgeOX = edgesAtV000[ iParallel[i] == 1 ? i : iE1 ]; + break; + } } - //2.1 - for each node of the cube (less 3 *1 Faces): - // - store hexahedron in SMESHDS - MESSAGE("Storing hexahedron into the DS"); - for (int i = 0; i < nbx - 1; i++) - for (int j = 0; j < nby - 1; j++) - { - bool isForw = forward.at( j * nbx + i ); - for (int k = 0; k < nbz - 1; k++) - { - int n1 = k * nbx * nby + j * nbx + i; - int n2 = k * nbx * nby + j * nbx + i + 1; - int n3 = k * nbx * nby + (j + 1) * nbx + i + 1; - int n4 = k * nbx * nby + (j + 1) * nbx + i; - int n5 = (k + 1) * nbx * nby + j * nbx + i; - int n6 = (k + 1) * nbx * nby + j * nbx + i + 1; - int n7 = (k + 1) * nbx * nby + (j + 1) * nbx + i + 1; - int n8 = (k + 1) * nbx * nby + (j + 1) * nbx + i; - - SMDS_MeshVolume * elt; - if ( isForw ) - elt = meshDS->AddVolume(np[n1].node, - np[n2].node, - np[n3].node, - np[n4].node, - np[n5].node, - np[n6].node, - np[n7].node, - np[n8].node); - else - elt = meshDS->AddVolume(np[n1].node, - np[n4].node, - np[n3].node, - np[n2].node, - np[n5].node, - np[n8].node, - np[n7].node, - np[n6].node); - - meshDS->SetMeshElementOnShape(elt, shapeID); - } - } - if ( np ) delete [] np; - //MESSAGE("End of StdMeshers_Hexa_3D::Compute()"); - return true; -} + if ( !edgeOZ || !edgeOX ) + return false; -//============================================================================= -/*! - * - */ -//============================================================================= + TopoDS_Vertex v100 = edgeOX->LastVertex(); + if ( v100.IsSame( v000 )) + v100 = edgeOX->FirstVertex(); -void StdMeshers_Hexa_3D::GetPoint(Pt3 p, int i, int j, int k, int nbx, int nby, - int nbz, Point3DStruct * np, const SMESHDS_Mesh * meshDS) -{ - int ijk = k * nbx * nby + j * nbx + i; - const SMDS_MeshNode * node = np[ijk].node; - p[0] = node->X(); - p[1] = node->Y(); - p[2] = node->Z(); - //MESSAGE(" "<side.size(); ++iS ) + { + StdMeshers_FaceSidePtr edge = quad->side[iS]; + if ( edge->FirstVertex().IsSame( v000 ) || edge->LastVertex().IsSame( v000 )) + hasV000 = true; + if ( edge->FirstVertex().IsSame( v100 ) || edge->LastVertex().IsSame( v100 )) + hasV100 = true; + } + if ( hasV000 && !hasV100 ) + { + // orient the left quad + for ( int i = 0; i < 4; ++i ) + { + if ( quad->side[Q_BOTTOM].grid->Edge(0).IsSame( edgeOZ->Edge(0) )) + break; + quad->shift( 1, true ); + } + + FaceQuadStructPtr quads[ 6 ]; + quads[0].swap( blockSide[iQ]._quad ); + for ( int i = 1, j = 0; i < 6; ++i, ++j ) + if ( blockSide[ j ]._quad ) + quads[ i ].swap( blockSide[ j ]._quad ); + else + --i; + + return arrangeQuads( quads, blockSide, false/* true*/ ); + } + } + return false; + } -int StdMeshers_Hexa_3D::GetFaceIndex(SMESH_Mesh & aMesh, - const TopoDS_Shape & aShape, - const vector < SMESH_subMesh * >&meshFaces, - const TopoDS_Vertex & V0, - const TopoDS_Vertex & V1, - const TopoDS_Vertex & V2, const TopoDS_Vertex & V3) -{ - //MESSAGE("StdMeshers_Hexa_3D::GetFaceIndex"); - int faceIndex = -1; - for (int i = 1; i < 6; i++) - { - const TopoDS_Shape & aFace = meshFaces[i]->GetSubShape(); - //const TopoDS_Face& F = TopoDS::Face(aFace); - TopTools_IndexedMapOfShape M; - TopExp::MapShapes(aFace, TopAbs_VERTEX, M); - bool verticesInShape = false; - if (M.Contains(V0)) - if (M.Contains(V1)) - if (M.Contains(V2)) - if (M.Contains(V3)) - verticesInShape = true; - if (verticesInShape) - { - faceIndex = i; - break; - } - } - ASSERT(faceIndex > 0); - //SCRUTE(faceIndex); - return faceIndex; -} + //================================================================================ + /*! + * \brief Returns true if the 1st base node of sideGrid1 belongs to sideGrid2 + */ + //================================================================================ + + bool beginsAtSide( const _FaceGrid& sideGrid1, + const _FaceGrid& sideGrid2, + SMESH_ProxyMesh::Ptr proxymesh ) + { + const TNodeColumn& col0 = sideGrid2._u2nodesMap.begin()->second; + const TNodeColumn& col1 = sideGrid2._u2nodesMap.rbegin()->second; + const SMDS_MeshNode* n00 = col0.front(); + const SMDS_MeshNode* n01 = col0.back(); + const SMDS_MeshNode* n10 = col1.front(); + const SMDS_MeshNode* n11 = col1.back(); + const SMDS_MeshNode* n = (sideGrid1._u2nodesMap.begin()->second)[0]; + if ( proxymesh ) + { + n00 = proxymesh->GetProxyNode( n00 ); + n10 = proxymesh->GetProxyNode( n10 ); + n01 = proxymesh->GetProxyNode( n01 ); + n11 = proxymesh->GetProxyNode( n11 ); + n = proxymesh->GetProxyNode( n ); + } + return ( n == n00 || n == n01 || n == n10 || n == n11 ); + } -//============================================================================= -/*! - * - */ -//============================================================================= + //================================================================================ + /*! + * \brief Fill in _FaceGrid::_ijkColumns + * \param [in,out] fg - a _FaceGrid + * \param [in] i1 - coordinate index along _columns + * \param [in] i2 - coordinate index along _columns[i] + * \param [in] v3 - value of the constant parameter + */ + //================================================================================ + + void computeIJK( _FaceGrid& fg, int i1, int i2, double v3 ) + { + gp_XYZ ijk( v3, v3, v3 ); + const size_t nbCol = fg._columns.size(); + const size_t nbRow = fg._columns[0].size(); + + fg._ijkColumns.resize( nbCol ); + for ( size_t i = 0; i < nbCol; ++i ) + fg._ijkColumns[ i ].resize( nbRow, ijk ); + + vector< double > len( nbRow ); + len[0] = 0; + for ( size_t i = 0; i < nbCol; ++i ) + { + gp_Pnt pPrev = fg.GetXYZ( i, 0 ); + for ( size_t j = 1; j < nbRow; ++j ) + { + gp_Pnt p = fg.GetXYZ( i, j ); + len[ j ] = len[ j-1 ] + p.Distance( pPrev ); + pPrev = p; + } + for ( size_t j = 0; j < nbRow; ++j ) + fg.GetIJK( i, j ).SetCoord( i2, len[ j ]/len.back() ); + } -TopoDS_Edge - StdMeshers_Hexa_3D::EdgeNotInFace(SMESH_Mesh & aMesh, - const TopoDS_Shape & aShape, - const TopoDS_Face & aFace, - const TopoDS_Vertex & aVertex, - const TopTools_IndexedDataMapOfShapeListOfShape & MS) -{ - //MESSAGE("StdMeshers_Hexa_3D::EdgeNotInFace"); - TopTools_IndexedDataMapOfShapeListOfShape MF; - TopExp::MapShapesAndAncestors(aFace, TopAbs_VERTEX, TopAbs_EDGE, MF); - const TopTools_ListOfShape & ancestorsInSolid = MS.FindFromKey(aVertex); - const TopTools_ListOfShape & ancestorsInFace = MF.FindFromKey(aVertex); -// SCRUTE(ancestorsInSolid.Extent()); -// SCRUTE(ancestorsInFace.Extent()); - ASSERT(ancestorsInSolid.Extent() == 6); // 6 (edges doublees) - ASSERT(ancestorsInFace.Extent() == 2); - - TopoDS_Edge E; - E.Nullify(); - TopTools_ListIteratorOfListOfShape its(ancestorsInSolid); - for (; its.More(); its.Next()) - { - TopoDS_Shape ancestor = its.Value(); - TopTools_ListIteratorOfListOfShape itf(ancestorsInFace); - bool isInFace = false; - for (; itf.More(); itf.Next()) - { - TopoDS_Shape ancestorInFace = itf.Value(); - if (ancestorInFace.IsSame(ancestor)) - { - isInFace = true; - break; - } - } - if (!isInFace) - { - E = TopoDS::Edge(ancestor); - break; - } - } - return E; + len.resize( nbCol ); + for ( size_t j = 0; j < nbRow; ++j ) + { + gp_Pnt pPrev = fg.GetXYZ( 0, j ); + for ( size_t i = 1; i < nbCol; ++i ) + { + gp_Pnt p = fg.GetXYZ( i, j ); + len[ i ] = len[ i-1 ] + p.Distance( pPrev ); + pPrev = p; + } + for ( size_t i = 0; i < nbCol; ++i ) + fg.GetIJK( i, j ).SetCoord( i1, len[ i ]/len.back() ); + } + } } //============================================================================= /*! - * + * Generates hexahedron mesh on hexaedron like form using algorithm from + * "Application de l'interpolation transfinie � la cr�ation de maillages + * C0 ou G1 continus sur des triangles, quadrangles, tetraedres, pentaedres + * et hexaedres d�form�s." + * Alain PERONNET - 8 janvier 1999 */ //============================================================================= -void StdMeshers_Hexa_3D::GetConv2DCoefs(const faceQuadStruct & quad, - const TopoDS_Shape & aShape, - const TopoDS_Vertex & V0, - const TopoDS_Vertex & V1, - const TopoDS_Vertex & V2, const TopoDS_Vertex & V3, Conv2DStruct & conv) +bool StdMeshers_Hexa_3D::Compute(SMESH_Mesh & aMesh, + const TopoDS_Shape & aShape) { -// MESSAGE("StdMeshers_Hexa_3D::GetConv2DCoefs"); - const TopoDS_Face & F = TopoDS::Face(aShape); - TopoDS_Edge E = quad.edge[0]; - double f, l; - Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l); - TopoDS_Vertex VFirst, VLast; - TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l - bool isForward = (((l - f) * (quad.last[0] - quad.first[0])) > 0); - TopoDS_Vertex VA, VB; - if (isForward) - { - VA = VFirst; - VB = VLast; - } - else - { - VA = VLast; - VB = VFirst; - } - int a1, b1, c1, a2, b2, c2; - if (VA.IsSame(V0)) - if (VB.IsSame(V1)) - { - a1 = 1; - b1 = 0; - c1 = 0; // x - a2 = 0; - b2 = 1; - c2 = 0; // y - } - else - { - ASSERT(VB.IsSame(V3)); - a1 = 0; - b1 = 1; - c1 = 0; // y - a2 = 1; - b2 = 0; - c2 = 0; // x - } - if (VA.IsSame(V1)) - if (VB.IsSame(V2)) - { - a1 = 0; - b1 = -1; - c1 = 1; // 1-y - a2 = 1; - b2 = 0; - c2 = 0; // x - } - else - { - ASSERT(VB.IsSame(V0)); - a1 = -1; - b1 = 0; - c1 = 1; // 1-x - a2 = 0; - b2 = 1; - c2 = 0; // y - } - if (VA.IsSame(V2)) - if (VB.IsSame(V3)) - { - a1 = -1; - b1 = 0; - c1 = 1; // 1-x - a2 = 0; - b2 = -1; - c2 = 1; // 1-y - } - else - { - ASSERT(VB.IsSame(V1)); - a1 = 0; - b1 = -1; - c1 = 1; // 1-y - a2 = -1; - b2 = 0; - c2 = 1; // 1-x - } - if (VA.IsSame(V3)) - if (VB.IsSame(V0)) - { - a1 = 0; - b1 = 1; - c1 = 0; // y - a2 = -1; - b2 = 0; - c2 = 1; // 1-x - } - else - { - ASSERT(VB.IsSame(V2)); - a1 = 1; - b1 = 0; - c1 = 0; // x - a2 = 0; - b2 = -1; - c2 = 1; // 1-y - } -// MESSAGE("X = " << c1 << "+ " << a1 << "*x + " << b1 << "*y"); -// MESSAGE("Y = " << c2 << "+ " << a2 << "*x + " << b2 << "*y"); - conv.a1 = a1; - conv.b1 = b1; - conv.c1 = c1; - conv.a2 = a2; - conv.b2 = b2; - conv.c2 = c2; - - int nbdown = quad.nbPts[0]; - int nbright = quad.nbPts[1]; - conv.ia = int (a1); - conv.ib = int (b1); - conv.ic = - int (c1 * a1 * a1) * (nbdown - 1) + int (c1 * b1 * b1) * (nbright - 1); - conv.ja = int (a2); - conv.jb = int (b2); - conv.jc = - int (c2 * a2 * a2) * (nbdown - 1) + int (c2 * b2 * b2) * (nbright - 1); -// MESSAGE("I " << conv.ia << " " << conv.ib << " " << conv.ic); -// MESSAGE("J " << conv.ja << " " << conv.jb << " " << conv.jc); -} + // PAL14921. Enable catching std::bad_alloc and Standard_OutOfMemory outside + //Unexpect aCatch(SalomeException); + SMESHDS_Mesh * meshDS = aMesh.GetMeshDS(); + + // Shape verification + // ---------------------- + + // shape must be a solid (or a shell) with 6 faces + TopExp_Explorer exp(aShape,TopAbs_SHELL); + if ( !exp.More() ) + return error(COMPERR_BAD_SHAPE, "No SHELL in the geometry"); + if ( exp.Next(), exp.More() ) + return error(COMPERR_BAD_SHAPE, "More than one SHELL in the geometry"); + + TopTools_IndexedMapOfShape FF, EE; + TopExp::MapShapes( aShape, TopAbs_FACE, FF); + if ( FF.Extent() != 6) + { + static StdMeshers_CompositeHexa_3D compositeHexa(_gen->GetANewId(), _gen); + compositeHexa.SetHypothesis( _blockRenumberHyp ); + if ( !compositeHexa.Compute( aMesh, aShape )) + return error( compositeHexa.GetComputeError() ); + + return _blockRenumberHyp ? error( _blockRenumberHyp->CheckHypothesis( aMesh, aShape )) : true; + } -//============================================================================= -/*! - * - */ -//============================================================================= + // Find sides of a cube + // --------------------- + + // tool creating quadratic elements if needed + SMESH_MesherHelper helper (aMesh); + _quadraticMesh = helper.IsQuadraticSubMesh(aShape); + + TopExp::MapShapes( aShape, TopAbs_EDGE, EE ); + SMESH_MesherHelper* faceHelper = ( EE.Size() == 12 ) ? 0 : &helper; + + FaceQuadStructPtr quad[ 6 ]; + for ( int i = 0; i < 6; ++i ) + { + if ( faceHelper ) + faceHelper->SetSubShape( FF( i+1 )); + if ( !( quad[i] = FaceQuadStructPtr( _quadAlgo->CheckNbEdges( aMesh, FF( i+1 ), + /*considerMesh=*/true, + faceHelper)))) + return error( _quadAlgo->GetComputeError() ); + if ( quad[i]->side.size() != 4 ) + return error( COMPERR_BAD_SHAPE, "Not a quadrangular box side" ); + } -ostream & StdMeshers_Hexa_3D::SaveTo(ostream & save) -{ - return save; + // put quads in a proper order + _FaceGrid aCubeSide[ 6 ]; + if ( !arrangeQuads( quad, aCubeSide, true )) + return error( COMPERR_BAD_SHAPE ); + + + // Make viscous layers + // -------------------- + + SMESH_ProxyMesh::Ptr proxymesh; + if ( _viscousLayersHyp ) + { + proxymesh = _viscousLayersHyp->Compute( aMesh, aShape, /*makeN2NMap=*/ true ); + if ( !proxymesh ) + return false; + } + + // Check if there are triangles on cube sides + // ------------------------------------------- + + if ( aMesh.NbTriangles() > 0 ) + { + for ( int i = 0; i < 6; ++i ) + { + const TopoDS_Face& sideF = aCubeSide[i]._quad->face; + const SMESHDS_SubMesh* smDS = + proxymesh ? proxymesh->GetSubMesh( sideF ) : meshDS->MeshElements( sideF ); + if ( !SMESH_MesherHelper::IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE, + /*nullSubMeshRes=*/false )) + { + SMESH_ComputeErrorPtr err = ComputePentahedralMesh(aMesh, aShape, proxymesh.get()); + return error( err ); + } + } + } + + // Arrange sides according to _blockRenumberHyp + bool toRenumber = _blockRenumberHyp; + if ( toRenumber ) + { + TopoDS_Vertex v000, v001; + _blockRenumberHyp->IsSolidIncluded( aMesh, aShape, v000, v001 ); + + toRenumber = arrangeForRenumber( aCubeSide, v000, v001 ); + + if ( toRenumber ) + { + meshDS->Modified(); + meshDS->CompactMesh(); // remove numbering holes + } + } + + // Check presence of regular grid mesh on FACEs of the cube + // ------------------------------------------------------------ + + for ( int i = 0; i < 6; ++i ) + { + const TopoDS_Face& F = aCubeSide[i]._quad->face; + StdMeshers_FaceSidePtr baseQuadSide = aCubeSide[i]._quad->side[ Q_BOTTOM ]; + list baseEdges( baseQuadSide->Edges().begin(), baseQuadSide->Edges().end() ); + + // assure correctness of node positions on baseE: + // helper.GetNodeU() will fix positions if they are wrong + helper.ToFixNodeParameters( true ); + for ( int iE = 0; iE < baseQuadSide->NbEdges(); ++iE ) + { + const TopoDS_Edge& baseE = baseQuadSide->Edge( iE ); + if ( SMESHDS_SubMesh* smDS = meshDS->MeshElements( baseE )) + { + bool ok; + helper.SetSubShape( baseE ); + SMDS_ElemIteratorPtr eIt = smDS->GetElements(); + while ( eIt->more() ) + { + const SMDS_MeshElement* e = eIt->next(); + // expect problems on a composite side + try { helper.GetNodeU( baseE, e->GetNode(0), e->GetNode(1), &ok); } + catch (...) {} + try { helper.GetNodeU( baseE, e->GetNode(1), e->GetNode(0), &ok); } + catch (...) {} + } + } + } + + // load grid + bool ok = + helper.LoadNodeColumns( aCubeSide[i]._u2nodesMap, F, baseEdges, meshDS, proxymesh.get()); + if ( ok ) + { + // check if the loaded grid corresponds to nb of quadrangles on the FACE + const SMESHDS_SubMesh* faceSubMesh = + proxymesh ? proxymesh->GetSubMesh( F ) : meshDS->MeshElements( F ); + const int nbQuads = faceSubMesh->NbElements(); + const int nbHor = aCubeSide[i]._u2nodesMap.size() - 1; + const int nbVer = aCubeSide[i]._u2nodesMap.begin()->second.size() - 1; + ok = ( nbQuads == nbHor * nbVer ); + } + if ( !ok ) + { + SMESH_ComputeErrorPtr err = ComputePentahedralMesh(aMesh, aShape, proxymesh.get()); + return error( err ); + } + } + + // Orient loaded grids of cube sides along axis of the unitary cube coord system + bool isReverse[6]; + isReverse[B_BOTTOM] = beginsAtSide( aCubeSide[B_BOTTOM], aCubeSide[B_RIGHT ], proxymesh ); + isReverse[B_TOP ] = beginsAtSide( aCubeSide[B_TOP ], aCubeSide[B_RIGHT ], proxymesh ); + isReverse[B_FRONT ] = beginsAtSide( aCubeSide[B_FRONT ], aCubeSide[B_RIGHT ], proxymesh ); + isReverse[B_BACK ] = beginsAtSide( aCubeSide[B_BACK ], aCubeSide[B_RIGHT ], proxymesh ); + isReverse[B_LEFT ] = beginsAtSide( aCubeSide[B_LEFT ], aCubeSide[B_BACK ], proxymesh ); + isReverse[B_RIGHT ] = beginsAtSide( aCubeSide[B_RIGHT ], aCubeSide[B_BACK ], proxymesh ); + for ( int i = 0; i < 6; ++i ) + { + aCubeSide[i]._columns.resize( aCubeSide[i]._u2nodesMap.size() ); + + size_t iFwd = 0, iRev = aCubeSide[i]._columns.size()-1; + size_t* pi = isReverse[i] ? &iRev : &iFwd; + TParam2ColumnMap::iterator u2nn = aCubeSide[i]._u2nodesMap.begin(); + for ( ; iFwd < aCubeSide[i]._columns.size(); --iRev, ++iFwd, ++u2nn ) + aCubeSide[i]._columns[ *pi ].swap( u2nn->second ); + + aCubeSide[i]._u2nodesMap.clear(); + } + + if ( proxymesh ) + for ( int i = 0; i < 6; ++i ) + for ( size_t j = 0; j < aCubeSide[i]._columns.size(); ++j) + for ( size_t k = 0; k < aCubeSide[i]._columns[j].size(); ++k) + { + const SMDS_MeshNode* & n = aCubeSide[i]._columns[j][k]; + n = proxymesh->GetProxyNode( n ); + } + + // 4) Create internal nodes of the cube + // ------------------------------------- + + helper.SetSubShape( aShape ); + helper.SetElementsOnShape(true); + + // shortcuts to sides + _FaceGrid* fBottom = & aCubeSide[ B_BOTTOM ]; + _FaceGrid* fRight = & aCubeSide[ B_RIGHT ]; + _FaceGrid* fTop = & aCubeSide[ B_TOP ]; + _FaceGrid* fLeft = & aCubeSide[ B_LEFT ]; + _FaceGrid* fFront = & aCubeSide[ B_FRONT ]; + _FaceGrid* fBack = & aCubeSide[ B_BACK ]; + + // cube size measured in nb of nodes + size_t x, xSize = fBottom->_columns.size() , X = xSize - 1; + size_t y, ySize = fLeft->_columns.size() , Y = ySize - 1; + size_t z, zSize = fLeft->_columns[0].size(), Z = zSize - 1; + + // check sharing of FACEs (IPAL54417) + if ( fFront ->_columns.size() != xSize || + fBack ->_columns.size() != xSize || + fTop ->_columns.size() != xSize || + + fRight ->_columns.size() != ySize || + fTop ->_columns[0].size() != ySize || + fBottom->_columns[0].size() != ySize || + + fRight ->_columns[0].size() != zSize || + fFront ->_columns[0].size() != zSize || + fBack ->_columns[0].size() != zSize ) + return error( COMPERR_BAD_SHAPE, "Not sewed faces" ); + + // columns of internal nodes "rising" from nodes of fBottom + _Indexer colIndex( xSize, ySize ); + vector< vector< const SMDS_MeshNode* > > columns( colIndex.size() ); + + // fill node columns by front and back box sides + for ( x = 0; x < xSize; ++x ) { + vector< const SMDS_MeshNode* >& column0 = columns[ colIndex( x, 0 )]; + vector< const SMDS_MeshNode* >& column1 = columns[ colIndex( x, Y )]; + column0.resize( zSize ); + column1.resize( zSize ); + for ( z = 0; z < zSize; ++z ) { + column0[ z ] = fFront->GetNode( x, z ); + column1[ z ] = fBack ->GetNode( x, z ); + } + } + // fill node columns by left and right box sides + for ( y = 1; y < ySize-1; ++y ) { + vector< const SMDS_MeshNode* >& column0 = columns[ colIndex( 0, y )]; + vector< const SMDS_MeshNode* >& column1 = columns[ colIndex( X, y )]; + column0.resize( zSize ); + column1.resize( zSize ); + for ( z = 0; z < zSize; ++z ) { + column0[ z ] = fLeft ->GetNode( y, z ); + column1[ z ] = fRight->GetNode( y, z ); + } + } + // get nodes from top and bottom box sides + for ( x = 1; x < xSize-1; ++x ) { + for ( y = 1; y < ySize-1; ++y ) { + vector< const SMDS_MeshNode* >& column = columns[ colIndex( x, y )]; + column.resize( zSize ); + column.front() = fBottom->GetNode( x, y ); + column.back() = fTop ->GetNode( x, y ); + } + } + + // compute normalized parameters of nodes on sides (PAL23189) + computeIJK( *fBottom, COO_X, COO_Y, /*z=*/0. ); + computeIJK( *fRight, COO_Y, COO_Z, /*x=*/1. ); + computeIJK( *fTop, COO_X, COO_Y, /*z=*/1. ); + computeIJK( *fLeft, COO_Y, COO_Z, /*x=*/0. ); + computeIJK( *fFront, COO_X, COO_Z, /*y=*/0. ); + computeIJK( *fBack, COO_X, COO_Z, /*y=*/1. ); + + StdMeshers_RenumberHelper renumHelper( aMesh, _blockRenumberHyp ); + + // projection points of the internal node on cube sub-shapes by which + // coordinates of the internal node are computed + vector pointsOnShapes( SMESH_Block::ID_Shell ); + + // projections on vertices are constant + pointsOnShapes[ SMESH_Block::ID_V000 ] = fBottom->GetXYZ( 0, 0 ); + pointsOnShapes[ SMESH_Block::ID_V100 ] = fBottom->GetXYZ( X, 0 ); + pointsOnShapes[ SMESH_Block::ID_V010 ] = fBottom->GetXYZ( 0, Y ); + pointsOnShapes[ SMESH_Block::ID_V110 ] = fBottom->GetXYZ( X, Y ); + pointsOnShapes[ SMESH_Block::ID_V001 ] = fTop->GetXYZ( 0, 0 ); + pointsOnShapes[ SMESH_Block::ID_V101 ] = fTop->GetXYZ( X, 0 ); + pointsOnShapes[ SMESH_Block::ID_V011 ] = fTop->GetXYZ( 0, Y ); + pointsOnShapes[ SMESH_Block::ID_V111 ] = fTop->GetXYZ( X, Y ); + + gp_XYZ params; // normalized parameters of an internal node within the unit box + + if ( toRenumber ) + for ( y = 0; y < ySize; ++y ) + { + vector< const SMDS_MeshNode* >& column0y = columns[ colIndex( 0, y )]; + for ( z = 0; z < zSize; ++z ) + renumHelper.AddReplacingNode( column0y[ z ] ); + } + + for ( x = 1; x < xSize-1; ++x ) + { + if ( toRenumber ) + { + vector< const SMDS_MeshNode* >& columnX0 = columns[ colIndex( x, 0 )]; + for ( z = 0; z < zSize; ++z ) + renumHelper.AddReplacingNode( columnX0[ z ] ); + } + + const double rX = x / double(X); + for ( y = 1; y < ySize-1; ++y ) + { + const double rY = y / double(Y); + + // a column to fill in during z loop + vector< const SMDS_MeshNode* >& column = columns[ colIndex( x, y )]; + // projection points on horizontal edges + pointsOnShapes[ SMESH_Block::ID_Ex00 ] = fBottom->GetXYZ( x, 0 ); + pointsOnShapes[ SMESH_Block::ID_Ex10 ] = fBottom->GetXYZ( x, Y ); + pointsOnShapes[ SMESH_Block::ID_E0y0 ] = fBottom->GetXYZ( 0, y ); + pointsOnShapes[ SMESH_Block::ID_E1y0 ] = fBottom->GetXYZ( X, y ); + pointsOnShapes[ SMESH_Block::ID_Ex01 ] = fTop->GetXYZ( x, 0 ); + pointsOnShapes[ SMESH_Block::ID_Ex11 ] = fTop->GetXYZ( x, Y ); + pointsOnShapes[ SMESH_Block::ID_E0y1 ] = fTop->GetXYZ( 0, y ); + pointsOnShapes[ SMESH_Block::ID_E1y1 ] = fTop->GetXYZ( X, y ); + // projection points on horizontal faces + pointsOnShapes[ SMESH_Block::ID_Fxy0 ] = fBottom->GetXYZ( x, y ); + pointsOnShapes[ SMESH_Block::ID_Fxy1 ] = fTop ->GetXYZ( x, y ); + + if ( toRenumber ) + renumHelper.AddReplacingNode( column[ 0 ] ); + + for ( z = 1; z < zSize-1; ++z ) // z loop + { + const double rZ = z / double(Z); + + const gp_XYZ& pBo = fBottom->GetIJK( x, y ); + const gp_XYZ& pTo = fTop ->GetIJK( x, y ); + const gp_XYZ& pFr = fFront ->GetIJK( x, z ); + const gp_XYZ& pBa = fBack ->GetIJK( x, z ); + const gp_XYZ& pLe = fLeft ->GetIJK( y, z ); + const gp_XYZ& pRi = fRight ->GetIJK( y, z ); + params.SetCoord( 1, 0.5 * ( pBo.X() * ( 1. - rZ ) + pTo.X() * rZ + + pFr.X() * ( 1. - rY ) + pBa.X() * rY )); + params.SetCoord( 2, 0.5 * ( pBo.Y() * ( 1. - rZ ) + pTo.Y() * rZ + + pLe.Y() * ( 1. - rX ) + pRi.Y() * rX )); + params.SetCoord( 3, 0.5 * ( pFr.Z() * ( 1. - rY ) + pBa.Z() * rY + + pLe.Z() * ( 1. - rX ) + pRi.Z() * rX )); + + // projection points on vertical edges + pointsOnShapes[ SMESH_Block::ID_E00z ] = fFront->GetXYZ( 0, z ); + pointsOnShapes[ SMESH_Block::ID_E10z ] = fFront->GetXYZ( X, z ); + pointsOnShapes[ SMESH_Block::ID_E01z ] = fBack->GetXYZ( 0, z ); + pointsOnShapes[ SMESH_Block::ID_E11z ] = fBack->GetXYZ( X, z ); + // projection points on vertical faces + pointsOnShapes[ SMESH_Block::ID_Fx0z ] = fFront->GetXYZ( x, z ); + pointsOnShapes[ SMESH_Block::ID_Fx1z ] = fBack ->GetXYZ( x, z ); + pointsOnShapes[ SMESH_Block::ID_F0yz ] = fLeft ->GetXYZ( y, z ); + pointsOnShapes[ SMESH_Block::ID_F1yz ] = fRight->GetXYZ( y, z ); + + // compute internal node coordinates + gp_XYZ coords; + SMESH_Block::ShellPoint( params, pointsOnShapes, coords ); + column[ z ] = helper.AddNode( coords.X(), coords.Y(), coords.Z() ); + + } // z loop + if ( toRenumber ) + renumHelper.AddReplacingNode( column[ Z ] ); + + } // y loop + if ( toRenumber ) + { + vector< const SMDS_MeshNode* >& columnX0 = columns[ colIndex( x, Y )]; + for ( z = 0; z < zSize; ++z ) + renumHelper.AddReplacingNode( columnX0[ z ] ); + } + } // x loop + + if ( toRenumber ) + for ( y = 0; y < ySize; ++y ) + { + vector< const SMDS_MeshNode* >& columnXy = columns[ colIndex( X, y )]; + for ( z = 0; z < zSize; ++z ) + renumHelper.AddReplacingNode( columnXy[ z ] ); + } + + // side data no more needed, free memory + for ( int i = 0; i < 6; ++i ) + SMESHUtils::FreeVector( aCubeSide[i]._columns ); + + // 5) Create hexahedrons + // --------------------- + + for ( x = 0; x < xSize-1; ++x ) { + for ( y = 0; y < ySize-1; ++y ) { + vector< const SMDS_MeshNode* >& col00 = columns[ colIndex( x, y )]; + vector< const SMDS_MeshNode* >& col10 = columns[ colIndex( x+1, y )]; + vector< const SMDS_MeshNode* >& col01 = columns[ colIndex( x, y+1 )]; + vector< const SMDS_MeshNode* >& col11 = columns[ colIndex( x+1, y+1 )]; + for ( z = 0; z < zSize-1; ++z ) + { + // bottom face normal of a hexa mush point outside the volume + if ( toRenumber ) + helper.AddVolume(col00[z], col01[z], col01[z+1], col00[z+1], + col10[z], col11[z], col11[z+1], col10[z+1]); + else + helper.AddVolume(col00[z], col01[z], col11[z], col10[z], + col00[z+1], col01[z+1], col11[z+1], col10[z+1]); + } + } + } + + if ( toRenumber ) + renumHelper.DoReplaceNodes(); + + + if ( _blockRenumberHyp ) + { + return error( _blockRenumberHyp->CheckHypothesis( aMesh, aShape )); + } + + return true; } //============================================================================= /*! - * + * Evaluate */ //============================================================================= -istream & StdMeshers_Hexa_3D::LoadFrom(istream & load) +bool StdMeshers_Hexa_3D::Evaluate(SMESH_Mesh & aMesh, + const TopoDS_Shape & aShape, + MapShapeNbElems& aResMap) { - return load; + vector < SMESH_subMesh * >meshFaces; + TopTools_SequenceOfShape aFaces; + for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next()) { + aFaces.Append(exp.Current()); + SMESH_subMesh *aSubMesh = aMesh.GetSubMeshContaining(exp.Current()); + ASSERT(aSubMesh); + meshFaces.push_back(aSubMesh); + } + if (meshFaces.size() != 6) { + //return error(COMPERR_BAD_SHAPE, TComm(meshFaces.size())<<" instead of 6 faces in a block"); + static StdMeshers_CompositeHexa_3D compositeHexa(-10, aMesh.GetGen()); + return compositeHexa.Evaluate(aMesh, aShape, aResMap); + } + + int i = 0; + for(; i<6; i++) { + //TopoDS_Shape aFace = meshFaces[i]->GetSubShape(); + TopoDS_Shape aFace = aFaces.Value(i+1); + SMESH_Algo *algo = _gen->GetAlgo(aMesh, aFace); + if( !algo ) { + std::vector aResVec(SMDSEntity_Last); + for(int i=SMDSEntity_Node; iGetComputeError(); + smError.reset( new SMESH_ComputeError(COMPERR_ALGO_FAILED,"Submesh can not be evaluated",this)); + return false; + } + string algoName = algo->GetName(); + bool isAllQuad = false; + if (algoName == "Quadrangle_2D") { + MapShapeNbElemsItr anIt = aResMap.find(meshFaces[i]); + if( anIt == aResMap.end() ) continue; + std::vector aVec = (*anIt).second; + int nbtri = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]); + if( nbtri == 0 ) + isAllQuad = true; + } + if ( ! isAllQuad ) { + return EvaluatePentahedralMesh(aMesh, aShape, aResMap); + } + } + + // find number of 1d elems for 1 face + int nb1d = 0; + TopTools_MapOfShape Edges1; + bool IsQuadratic = false; + bool IsFirst = true; + for (TopExp_Explorer exp(aFaces.Value(1), TopAbs_EDGE); exp.More(); exp.Next()) { + Edges1.Add(exp.Current()); + SMESH_subMesh *sm = aMesh.GetSubMesh(exp.Current()); + if( sm ) { + MapShapeNbElemsItr anIt = aResMap.find(sm); + if( anIt == aResMap.end() ) continue; + std::vector aVec = (*anIt).second; + nb1d += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]); + if(IsFirst) { + IsQuadratic = (aVec[SMDSEntity_Quad_Edge] > aVec[SMDSEntity_Edge]); + IsFirst = false; + } + } + } + // find face opposite to 1 face + int OppNum = 0; + for(i=2; i<=6; i++) { + bool IsOpposite = true; + for(TopExp_Explorer exp(aFaces.Value(i), TopAbs_EDGE); exp.More(); exp.Next()) { + if( Edges1.Contains(exp.Current()) ) { + IsOpposite = false; + break; + } + } + if(IsOpposite) { + OppNum = i; + break; + } + } + // find number of 2d elems on side faces + int nb2d = 0; + for(i=2; i<=6; i++) { + if( i == OppNum ) continue; + MapShapeNbElemsItr anIt = aResMap.find( meshFaces[i-1] ); + if( anIt == aResMap.end() ) continue; + std::vector aVec = (*anIt).second; + nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]); + } + + MapShapeNbElemsItr anIt = aResMap.find( meshFaces[0] ); + std::vector aVec = (*anIt).second; + int nb2d_face0 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]); + int nb0d_face0 = aVec[SMDSEntity_Node]; + + std::vector aResVec(SMDSEntity_Last); + for(int i=SMDSEntity_Node; iGetANewId(), gen ); + } + algo->InitComputeError(); + algo->Compute( aMesh, aHelper ); + return error( algo->GetComputeError()); } -//============================================================================= +//================================================================================ /*! - * + * \brief Return true if the algorithm can mesh this shape + * \param [in] aShape - shape to check + * \param [in] toCheckAll - if true, this check returns OK if all shapes are OK, + * else, returns OK if at least one shape is OK */ -//============================================================================= +//================================================================================ -istream & operator >>(istream & load, StdMeshers_Hexa_3D & hyp) +bool StdMeshers_Hexa_3D::IsApplicable( const TopoDS_Shape & aShape, bool toCheckAll ) { - return hyp.LoadFrom( load ); -} - -//modified by NIZNHY-PKV Wed Nov 17 15:34:13 2004 f -/////////////////////////////////////////////////////////////////////////////// -//ZZ -//#include + TopExp_Explorer exp0( aShape, TopAbs_SOLID ); + if ( !exp0.More() ) return false; + + for ( ; exp0.More(); exp0.Next() ) + { + int nbFoundShells = 0; + TopExp_Explorer exp1( exp0.Current(), TopAbs_SHELL ); + for ( ; exp1.More(); exp1.Next(), ++nbFoundShells) + if ( nbFoundShells == 2 ) break; + if ( nbFoundShells != 1 ) { + if ( toCheckAll ) return false; + continue; + } + exp1.Init( exp0.Current(), TopAbs_FACE ); + int nbEdges = SMESH_MesherHelper::Count( exp1.Current(), TopAbs_EDGE, /*ignoreSame=*/true ); + bool ok = ( nbEdges > 3 ); + if ( toCheckAll && !ok ) return false; + if ( !toCheckAll && ok ) return true; + } + return toCheckAll; +}; //======================================================================= //function : ComputePentahedralMesh //purpose : //======================================================================= -bool ComputePentahedralMesh(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape) + +SMESH_ComputeErrorPtr ComputePentahedralMesh(SMESH_Mesh & aMesh, + const TopoDS_Shape & aShape, + SMESH_ProxyMesh* proxyMesh) { - //printf(" ComputePentahedralMesh HERE\n"); - // + SMESH_ComputeErrorPtr err = SMESH_ComputeError::New(); + if ( proxyMesh ) + { + err->myName = COMPERR_BAD_INPUT_MESH; + err->myComment = "Can't build pentahedral mesh on viscous layers"; + return err; + } bool bOK; - //int iErr; StdMeshers_Penta_3D anAlgo; // bOK=anAlgo.Compute(aMesh, aShape); - /* - iErr=anAlgo.ErrorStatus(); - - if (iErr) { - printf(" *** Error# %d\n", iErr); + // + err = anAlgo.GetComputeError(); + // + if ( !bOK && anAlgo.ErrorStatus() == 5 ) + { + static StdMeshers_Prism_3D * aPrism3D = 0; + if ( !aPrism3D ) { + SMESH_Gen* gen = aMesh.GetGen(); + aPrism3D = new StdMeshers_Prism_3D( gen->GetANewId(), gen ); + } + SMESH_Hypothesis::Hypothesis_Status aStatus; + if ( aPrism3D->CheckHypothesis( aMesh, aShape, aStatus ) ) { + aPrism3D->InitComputeError(); + bOK = aPrism3D->Compute( aMesh, aShape ); + err = aPrism3D->GetComputeError(); + } } - else { - printf(" *** No errors# %d\n", iErr); + return err; +} + + +//======================================================================= +//function : EvaluatePentahedralMesh +//purpose : +//======================================================================= + +bool EvaluatePentahedralMesh(SMESH_Mesh & aMesh, + const TopoDS_Shape & aShape, + MapShapeNbElems& aResMap) +{ + StdMeshers_Penta_3D anAlgo; + bool bOK = anAlgo.Evaluate(aMesh, aShape, aResMap); + + //err = anAlgo.GetComputeError(); + //if ( !bOK && anAlgo.ErrorStatus() == 5 ) + if( !bOK ) { + static StdMeshers_Prism_3D * aPrism3D = 0; + if ( !aPrism3D ) { + SMESH_Gen* gen = aMesh.GetGen(); + aPrism3D = new StdMeshers_Prism_3D( gen->GetANewId(), gen ); + } + SMESH_Hypothesis::Hypothesis_Status aStatus; + if ( aPrism3D->CheckHypothesis( aMesh, aShape, aStatus ) ) { + return aPrism3D->Evaluate(aMesh, aShape, aResMap); + } } - */ + return bOK; } -