C++ SMDS_NodeIteratorPtr类代码示例

bool SMESH_Algo::GetSortedNodesOnEdge(const SMESHDS_Mesh*                   theMesh,
                                      const TopoDS_Edge&                    theEdge,
                                      const bool                            ignoreMediumNodes,
                                      map< double, const SMDS_MeshNode* > & theNodes)
{
  theNodes.clear();

  if ( !theMesh || theEdge.IsNull() )
    return false;

  SMESHDS_SubMesh * eSubMesh = theMesh->MeshElements( theEdge );
  if ( !eSubMesh || !eSubMesh->GetElements()->more() )
    return false; // edge is not meshed

  int nbNodes = 0;
  set < double > paramSet;
  if ( eSubMesh )
  {
    // loop on nodes of an edge: sort them by param on edge
    SMDS_NodeIteratorPtr nIt = eSubMesh->GetNodes();
    while ( nIt->more() )
    {
      const SMDS_MeshNode* node = nIt->next();
      if ( ignoreMediumNodes ) {
        SMDS_ElemIteratorPtr elemIt = node->GetInverseElementIterator();
        if ( elemIt->more() && elemIt->next()->IsMediumNode( node ))
          continue;
      }
      const SMDS_PositionPtr& pos = node->GetPosition();
      if ( pos->GetTypeOfPosition() != SMDS_TOP_EDGE )
        return false;
      const SMDS_EdgePosition* epos =
        static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
      theNodes.insert( make_pair( epos->GetUParameter(), node ));
      ++nbNodes;
    }
  }
  // add vertex nodes
  TopoDS_Vertex v1, v2;
  TopExp::Vertices(theEdge, v1, v2);
  const SMDS_MeshNode* n1 = VertexNode( v1, (SMESHDS_Mesh*) theMesh );
  const SMDS_MeshNode* n2 = VertexNode( v2, (SMESHDS_Mesh*) theMesh );
  Standard_Real f, l;
  BRep_Tool::Range(theEdge, f, l);
  if ( v1.Orientation() != TopAbs_FORWARD )
    std::swap( f, l );
  if ( n1 && ++nbNodes )
    theNodes.insert( make_pair( f, n1 ));
  if ( n2 && ++nbNodes )
    theNodes.insert( make_pair( l, n2 ));

  return theNodes.size() == nbNodes;
}

bool SMESH_Algo::GetNodeParamOnEdge(const SMESHDS_Mesh* theMesh,
                                    const TopoDS_Edge&  theEdge,
                                    vector< double > &  theParams)
{
  theParams.clear();

  if ( !theMesh || theEdge.IsNull() )
    return false;

  SMESHDS_SubMesh * eSubMesh = theMesh->MeshElements( theEdge );
  if ( !eSubMesh || !eSubMesh->GetElements()->more() )
    return false; // edge is not meshed

  //int nbEdgeNodes = 0;
  set < double > paramSet;
  if ( eSubMesh )
  {
    // loop on nodes of an edge: sort them by param on edge
    SMDS_NodeIteratorPtr nIt = eSubMesh->GetNodes();
    while ( nIt->more() )
    {
      const SMDS_MeshNode* node = nIt->next();
      const SMDS_PositionPtr& pos = node->GetPosition();
      if ( pos->GetTypeOfPosition() != SMDS_TOP_EDGE )
        return false;
      const SMDS_EdgePosition* epos =
        static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
      if ( !paramSet.insert( epos->GetUParameter() ).second )
        return false; // equal parameters
    }
  }
  // add vertex nodes params
  TopoDS_Vertex V1,V2;
  TopExp::Vertices( theEdge, V1, V2);
  if ( VertexNode( V1, theMesh ) &&
       !paramSet.insert( BRep_Tool::Parameter(V1,theEdge) ).second )
    return false; // there are equal parameters
  if ( VertexNode( V2, theMesh ) &&
       !paramSet.insert( BRep_Tool::Parameter(V2,theEdge) ).second )
    return false; // there are equal parameters

  // fill the vector
  theParams.resize( paramSet.size() );
  set < double >::iterator   par    = paramSet.begin();
  vector< double >::iterator vecPar = theParams.begin();
  for ( ; par != paramSet.end(); ++par, ++vecPar )
    *vecPar = *par;

  return theParams.size() > 1;
}

void TaskCreateNodeSet::DefineNodes(const Base::Polygon2D &polygon,const Gui::ViewVolumeProjection &proj,bool inner)
{
    const SMESHDS_Mesh* data = const_cast<SMESH_Mesh*>(pcObject->FemMesh.getValue<Fem::FemMeshObject*>()->FemMesh.getValue().getSMesh())->GetMeshDS();

    SMDS_NodeIteratorPtr aNodeIter = data->nodesIterator();
    Base::Vector3f pt2d;

    if(! ui->checkBox_Add->isChecked())
        tempSet.clear();

    while (aNodeIter->more()) {
        const SMDS_MeshNode* aNode = aNodeIter->next();
        Base::Vector3f vec(aNode->X(),aNode->Y(),aNode->Z());
        pt2d = proj(vec);
        if (polygon.Contains(Base::Vector2D(pt2d.x, pt2d.y)) == inner)
            tempSet.insert(aNode->GetID());
    }

    MeshViewProvider->setHighlightNodes(tempSet);
}

Py::Dict FemMeshPy::getNodes(void) const
{
    //int count = getFemMeshPtr()->getSMesh()->GetMeshDS()->NbNodes();
    //Py::Tuple tup(count);
    Py::Dict dict;

    // get the actual transform of the FemMesh
    Base::Matrix4D Mtrx = getFemMeshPtr()->getTransform();

    SMDS_NodeIteratorPtr aNodeIter = getFemMeshPtr()->getSMesh()->GetMeshDS()->nodesIterator();
    for (int i=0;aNodeIter->more();i++) {
        const SMDS_MeshNode* aNode = aNodeIter->next();
        Base::Vector3d vec(aNode->X(),aNode->Y(),aNode->Z());
        // Apply the matrix to hold the BoundBox in absolute space.
        vec = Mtrx * vec;
        int id = aNode->GetID();

        dict[Py::Long(id)] = Py::asObject(new Base::VectorPy( vec ));
    }

    return dict;
}

//.........这里部分代码省略.........

  MESSAGE((err ? "Mesh Generation failure" : "End of Mesh Generation") <<
          ", nb nodes: " << nbNod <<
          ", nb segments: " << nbSeg <<
          ", nb faces: " << nbFac <<
          ", nb volumes: " << nbVol);

  // -----------------------------------------------------------
  // Feed back the SMESHDS with the generated Nodes and Elements
  // -----------------------------------------------------------

  SMESHDS_Mesh* meshDS = _mesh->GetMeshDS();
  bool isOK = ( !err && (_isVolume ? (nbVol > 0) : (nbFac > 0)) );
  if ( true /*isOK*/ ) // get whatever built
  {
    // map of nodes assigned to submeshes
    NCollection_Map<int> pindMap;
    // create and insert nodes into nodeVec
    nodeVec.resize( nbNod + 1 );
    int i;
    for (i = nbInitNod+1; i <= nbNod /*&& isOK*/; ++i )
    {
      const netgen::MeshPoint& ngPoint = ngMesh->Point(i);
      SMDS_MeshNode* node = NULL;
      bool newNodeOnVertex = false;
      TopoDS_Vertex aVert;
      if (i-nbInitNod <= occgeo.vmap.Extent())
      {
        // point on vertex
        aVert = TopoDS::Vertex(occgeo.vmap(i-nbInitNod));
        SMESHDS_SubMesh * submesh = meshDS->MeshElements(aVert);
        if (submesh)
        {
          SMDS_NodeIteratorPtr it = submesh->GetNodes();
          if (it->more())
          {
            node = const_cast<SMDS_MeshNode*> (it->next());
            pindMap.Add(i);
          }
        }
        if (!node)
          newNodeOnVertex = true;
      }
      if (!node)
        node = meshDS->AddNode(ngPoint.X(), ngPoint.Y(), ngPoint.Z());
      if (!node)
      {
        MESSAGE("Cannot create a mesh node");
        if ( !comment.size() ) comment << "Cannot create a mesh node";
        nbSeg = nbFac = nbVol = isOK = 0;
        break;
      }
      nodeVec.at(i) = node;
      if (newNodeOnVertex)
      {
        // point on vertex
        meshDS->SetNodeOnVertex(node, aVert);
        pindMap.Add(i);
      }
    }

    // create mesh segments along geometric edges
    NCollection_Map<Link> linkMap;
    for (i = nbInitSeg+1; i <= nbSeg/* && isOK*/; ++i )
    {
      const netgen::Segment& seg = ngMesh->LineSegment(i);

//.........这里部分代码省略.........

    case TopAbs_FACE: { // FACE
      // ----------------------
      const TopoDS_Face& geomFace  = TopoDS::Face( sm->GetSubShape() );
      helper.SetSubShape( geomFace );

      // Find solids the geomFace bounds
      int solidID1 = 0, solidID2 = 0;
      const TopTools_ListOfShape& ancestors = _mesh->GetAncestors( geomFace );
      TopTools_ListIteratorOfListOfShape ancestorIt ( ancestors );
      for ( ; ancestorIt.More(); ancestorIt.Next() )
      {
        const TopoDS_Shape & solid = ancestorIt.Value();
        if ( solid.ShapeType() == TopAbs_SOLID  ) {
          int id = occgeom.somap.FindIndex ( solid );
          if ( solidID1 && id != solidID1 ) solidID2 = id;
          else                              solidID1 = id;
        }
      }
      faceID++;
      _faceDescriptors[ faceID ].first  = solidID1;
      _faceDescriptors[ faceID ].second = solidID2;

      // Orient the face correctly in solidID1 (issue 0020206)
      bool reverse = false;
      if ( solidID1 ) {
        TopoDS_Shape solid = occgeom.somap( solidID1 );
        for ( TopExp_Explorer f( solid, TopAbs_FACE ); f.More(); f.Next() ) {
          if ( geomFace.IsSame( f.Current() )) {
            reverse = SMESH_Algo::IsReversedSubMesh( TopoDS::Face( f.Current()), helper.GetMeshDS() );
            break;
          }
        }
      }

      // Add surface elements
      SMDS_ElemIteratorPtr faces = smDS->GetElements();
      while ( faces->more() ) {

        const SMDS_MeshElement* f = faces->next();
        if ( f->NbNodes() % 3 != 0 ) { // not triangle
          for ( ancestorIt.Initialize(ancestors); ancestorIt.More(); ancestorIt.Next() )
            if ( ancestorIt.Value().ShapeType() == TopAbs_SOLID  ) {
              sm = _mesh->GetSubMesh( ancestorIt.Value() );
              break;
            }
          SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
          smError.reset( new SMESH_ComputeError(COMPERR_BAD_INPUT_MESH,"Not triangle submesh"));
          smError->myBadElements.push_back( f );
          return false;
        }

        netgen::Element2d tri(3);
        tri.SetIndex ( faceID );

        for ( int i = 0; i < 3; ++i ) {
          const SMDS_MeshNode* node = f->GetNode( i ), * inFaceNode=0;
          if ( helper.IsSeamShape( node->GetPosition()->GetShapeId() ))
            if ( helper.IsSeamShape( f->GetNodeWrap( i+1 )->GetPosition()->GetShapeId() ))
              inFaceNode = f->GetNodeWrap( i-1 );
            else 
              inFaceNode = f->GetNodeWrap( i+1 );

          gp_XY uv = helper.GetNodeUV( geomFace, node, inFaceNode );
          if ( reverse ) {
            tri.GeomInfoPi(3-i).u = uv.X();
            tri.GeomInfoPi(3-i).v = uv.Y();
            tri.PNum      (3-i) = ngNodeId( node, ngMesh, nodeNgIdMap );
          } else {
            tri.GeomInfoPi(i+1).u = uv.X();
            tri.GeomInfoPi(i+1).v = uv.Y();
            tri.PNum      (i+1) = ngNodeId( node, ngMesh, nodeNgIdMap );
          }
        }

        ngMesh.AddSurfaceElement (tri);

      }
      break;
    } //

    case TopAbs_VERTEX: { // VERTEX
      // --------------------------
      SMDS_NodeIteratorPtr nodeIt = smDS->GetNodes();
      if ( nodeIt->more() )
        ngNodeId( nodeIt->next(), ngMesh, nodeNgIdMap );
      break;
    }
    default:;
    } // switch
  } // loop on submeshes

  // fill nodeVec
  nodeVec.resize( ngMesh.GetNP() + 1 );
  TNode2IdMap::iterator node_NgId, nodeNgIdEnd = nodeNgIdMap.end();
  for ( node_NgId = nodeNgIdMap.begin(); node_NgId != nodeNgIdEnd; ++node_NgId)
    nodeVec[ node_NgId->second ] = (SMDS_MeshNode*) node_NgId->first;

  return true;
}

void DefineNodesCallback(void * ud, SoEventCallback * n)
{
    Fem::FemAnalysis        *Analysis;

    if(getConstraintPrerequisits(&Analysis))
        return;

    // show the wait cursor because this could take quite some time
    Gui::WaitCursor wc;

    // When this callback function is invoked we must in either case leave the edit mode
    Gui::View3DInventorViewer* view  = reinterpret_cast<Gui::View3DInventorViewer*>(n->getUserData());
    view->setEditing(false);
    view->removeEventCallback(SoMouseButtonEvent::getClassTypeId(), DefineNodesCallback,ud);
    n->setHandled();

    SbBool clip_inner;
    std::vector<SbVec2f> clPoly = view->getGLPolygon(&clip_inner);
    if (clPoly.size() < 3)
        return;
    if (clPoly.front() != clPoly.back())
        clPoly.push_back(clPoly.front());

    SoCamera* cam = view->getCamera();
    SbViewVolume vv = cam->getViewVolume();
    Gui::ViewVolumeProjection proj(vv);
    Base::Polygon2D polygon;
    for (std::vector<SbVec2f>::const_iterator it = clPoly.begin(); it != clPoly.end(); ++it)
        polygon.Add(Base::Vector2D((*it)[0],(*it)[1]));


    std::vector<App::DocumentObject*> docObj = Gui::Selection().getObjectsOfType(Fem::FemMeshObject::getClassTypeId());
    if(docObj.size() !=1)
        return;

    const SMESHDS_Mesh* data = const_cast<SMESH_Mesh*>(dynamic_cast<Fem::FemMeshObject*>(docObj[0])->FemMesh.getValue().getSMesh())->GetMeshDS();

    SMDS_NodeIteratorPtr aNodeIter = data->nodesIterator();
    Base::Vector3f pt2d;
    std::set<int> IntSet;

    for (int i=0;aNodeIter->more();) {
        const SMDS_MeshNode* aNode = aNodeIter->next();
        Base::Vector3f vec(aNode->X(),aNode->Y(),aNode->Z());
        pt2d = proj(vec);
        if (polygon.Contains(Base::Vector2D(pt2d.x, pt2d.y)) == true) 
            IntSet.insert(aNode->GetID());
    }
    
    std::stringstream  set;

    set << "[";
    for(std::set<int>::const_iterator it=IntSet.begin();it!=IntSet.end();++it)
        if(it==IntSet.begin())
            set << *it ;
        else
            set << "," << *it ;
    set << "]";

    
    Gui::Command::openCommand("Place robot");
    Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.addObject('Fem::FemSetNodesObject','NodeSet')");
    Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.ActiveObject.Nodes = %s",set.str().c_str());
    Gui::Command::doCommand(Gui::Command::Doc,"App.activeDocument().%s.Member = App.activeDocument().%s.Member + [App.activeDocument().NodeSet]",Analysis->getNameInDocument(),Analysis->getNameInDocument());
    ////Gui::Command::updateActive();
    Gui::Command::commitCommand();

    //std::vector<Gui::ViewProvider*> views = view->getViewProvidersOfType(ViewProviderMesh::getClassTypeId());
    //if (!views.empty()) {
    //    Gui::Application::Instance->activeDocument()->openCommand("Cut");
    //    for (std::vector<Gui::ViewProvider*>::iterator it = views.begin(); it != views.end(); ++it) {
    //        ViewProviderMesh* that = static_cast<ViewProviderMesh*>(*it);
    //        if (that->getEditingMode() > -1) {
    //            that->finishEditing();
    //            that->cutMesh(clPoly, *view, clip_inner);
    //        }
    //    }

    //    Gui::Application::Instance->activeDocument()->commitCommand();

    //    view->render();
    //}
}

//.........这里部分代码省略.........
//                 sm1->NbNodes()<<" "<<smb->NbNodes()<<" "<<smFace->NbNodes());
//         return false;
//       }
    }
    else {
      RETURN_BAD_RESULT( "Wrong nb face nodes: " <<
                         sm1->NbNodes()<<" "<<smb->NbNodes()<<" "<<smFace->NbNodes());
    }
  }
  // IJ size
  int vsize = sm1->NbNodes() + 2;
  int hsize = smb->NbNodes() + 2;
  if(isQuadraticMesh) {
    vsize = vsize - sm1->NbNodes()/2 -1;
    hsize = hsize - smb->NbNodes()/2 -1;
  }

  // load nodes from theBaseEdge

  std::set<const SMDS_MeshNode*> loadedNodes;
  const SMDS_MeshNode* nullNode = 0;

  std::vector<const SMDS_MeshNode*> & nVecf = theParam2ColumnMap[ 0.];
  nVecf.resize( vsize, nullNode );
  loadedNodes.insert( nVecf[ 0 ] = smVfb->GetNodes()->next() );

  std::vector<const SMDS_MeshNode*> & nVecl = theParam2ColumnMap[ 1.];
  nVecl.resize( vsize, nullNode );
  loadedNodes.insert( nVecl[ 0 ] = smVlb->GetNodes()->next() );

  double f, l;
  BRep_Tool::Range( eFrw, f, l );
  double range = l - f;
  SMDS_NodeIteratorPtr nIt = smb->GetNodes();
  const SMDS_MeshNode* node;
  while ( nIt->more() ) {
    node = nIt->next();
    if(IsMedium(node, SMDSAbs_Edge))
      continue;
    const SMDS_EdgePosition* pos =
      dynamic_cast<const SMDS_EdgePosition*>( node->GetPosition().get() );
    if ( !pos ) {
      return false;
    }
    double u = ( pos->GetUParameter() - f ) / range;
    std::vector<const SMDS_MeshNode*> & nVec = theParam2ColumnMap[ u ];
    nVec.resize( vsize, nullNode );
    loadedNodes.insert( nVec[ 0 ] = node );
  }
  if ( theParam2ColumnMap.size() != hsize ) {
    RETURN_BAD_RESULT( "Wrong node positions on theBaseEdge" );
  }

  // load nodes from e1

  std::map< double, const SMDS_MeshNode*> sortedNodes; // sort by param on edge
  nIt = sm1->GetNodes();
  while ( nIt->more() ) {
    node = nIt->next();
    if(IsMedium(node))
      continue;
    const SMDS_EdgePosition* pos =
      dynamic_cast<const SMDS_EdgePosition*>( node->GetPosition().get() );
    if ( !pos ) {
      return false;
    }

void ViewProviderFEMMeshBuilder::createMesh(const App::Property* prop, SoCoordinate3* coords, SoIndexedFaceSet* faces) const
{
    const Fem::PropertyFemMesh* mesh = static_cast<const Fem::PropertyFemMesh*>(prop);

    SMESHDS_Mesh* data = const_cast<SMESH_Mesh*>(mesh->getValue().getSMesh())->GetMeshDS();
    const SMDS_MeshInfo& info = data->GetMeshInfo();
    int numNode = info.NbNodes();
    int numTria = info.NbTriangles();
    int numQuad = info.NbQuadrangles();
    //int numPoly = info.NbPolygons();
    //int numVolu = info.NbVolumes();
    int numTetr = info.NbTetras();
    //int numHexa = info.NbHexas();
    //int numPyrd = info.NbPyramids();
    //int numPris = info.NbPrisms();
    //int numHedr = info.NbPolyhedrons();

    int index=0;
    std::map<const SMDS_MeshNode*, int> mapNodeIndex;

    // set the point coordinates
    coords->point.setNum(numNode);
    SMDS_NodeIteratorPtr aNodeIter = data->nodesIterator();
    unsigned int i=0;
    SbVec3f* verts = coords->point.startEditing();
    for (;aNodeIter->more();) {
        const SMDS_MeshNode* aNode = aNodeIter->next();
        verts[i++].setValue((float)aNode->X(),(float)aNode->Y(),(float)aNode->Z());
        mapNodeIndex[aNode] = index++;
    }
    coords->point.finishEditing();

    // set the face indices
    index=0;
    faces->coordIndex.setNum(4*numTria + 5*numQuad + 16*numTetr);
    int32_t* indices = faces->coordIndex.startEditing();
    SMDS_FaceIteratorPtr aFaceIter = data->facesIterator();
    for (;aFaceIter->more();) {
        const SMDS_MeshFace* aFace = aFaceIter->next();
        int num = aFace->NbNodes();
        if (num != 3 && num != 4)
            continue;
        for (int j=0; j<num;j++) {
            const SMDS_MeshNode* node = aFace->GetNode(j);
            indices[index++] = mapNodeIndex[node];
        }
        indices[index++] = SO_END_FACE_INDEX;
    }
    SMDS_VolumeIteratorPtr aVolIter = data->volumesIterator();
    for (;aVolIter->more();) {
        const SMDS_MeshVolume* aVol = aVolIter->next();
        int num = aVol->NbNodes();
        if (num != 4)
            continue;
        int i1 = mapNodeIndex[aVol->GetNode(0)];
        int i2 = mapNodeIndex[aVol->GetNode(1)];
        int i3 = mapNodeIndex[aVol->GetNode(2)];
        int i4 = mapNodeIndex[aVol->GetNode(3)];
        indices[index++] = i1;
        indices[index++] = i3;
        indices[index++] = i2;
        indices[index++] = SO_END_FACE_INDEX;
        indices[index++] = i1;
        indices[index++] = i2;
        indices[index++] = i4;
        indices[index++] = SO_END_FACE_INDEX;
        indices[index++] = i1;
        indices[index++] = i4;
        indices[index++] = i3;
        indices[index++] = SO_END_FACE_INDEX;
        indices[index++] = i2;
        indices[index++] = i3;
        indices[index++] = i4;
        indices[index++] = SO_END_FACE_INDEX;
    }
    faces->coordIndex.finishEditing();
}

//.........这里部分代码省略.........
            hypoth.push_back(hyp1d);
        }

        if (regular) {
            StdMeshers_Regular_1D* hyp1d = new StdMeshers_Regular_1D(hyp++,0,meshgen);
            hypoth.push_back(hyp1d);
        }

        StdMeshers_TrianglePreference* hyp2d_1 = new StdMeshers_TrianglePreference(hyp++,0,meshgen);
        hypoth.push_back(hyp2d_1);
        StdMeshers_MEFISTO_2D* alg2d = new StdMeshers_MEFISTO_2D(hyp++,0,meshgen);
        hypoth.push_back(alg2d);
    } break;
#endif
    default:
        break;
    }

    // Set new cout
    MeshingOutput stdcout;
    std::streambuf* oldcout = std::cout.rdbuf(&stdcout);

    // Apply the hypothesis and create the mesh
    mesh->ShapeToMesh(shape);
    for (int i=0; i<hyp;i++)
        mesh->AddHypothesis(shape, i);
    meshgen->Compute(*mesh, mesh->GetShapeToMesh());

    // Restore old cout
    std::cout.rdbuf(oldcout);

    // build up the mesh structure
    SMDS_FaceIteratorPtr aFaceIter = mesh->GetMeshDS()->facesIterator();
    SMDS_NodeIteratorPtr aNodeIter = mesh->GetMeshDS()->nodesIterator();

    MeshCore::MeshPointArray verts;
    MeshCore::MeshFacetArray faces;
    verts.reserve(mesh->NbNodes());
    faces.reserve(mesh->NbFaces());

    int index=0;
    std::map<const SMDS_MeshNode*, int> mapNodeIndex;
    for (;aNodeIter->more();) {
        const SMDS_MeshNode* aNode = aNodeIter->next();
        MeshCore::MeshPoint p;
        p.Set((float)aNode->X(), (float)aNode->Y(), (float)aNode->Z());
        verts.push_back(p);
        mapNodeIndex[aNode] = index++;
    }
    for (;aFaceIter->more();) {
        const SMDS_MeshFace* aFace = aFaceIter->next();
        if (aFace->NbNodes() == 3) {
            MeshCore::MeshFacet f;
            for (int i=0; i<3;i++) {
                const SMDS_MeshNode* node = aFace->GetNode(i);
                f._aulPoints[i] = mapNodeIndex[node];
            }
            faces.push_back(f);
        }
        else if (aFace->NbNodes() == 4) {
            MeshCore::MeshFacet f1, f2;
            const SMDS_MeshNode* node0 = aFace->GetNode(0);
            const SMDS_MeshNode* node1 = aFace->GetNode(1);
            const SMDS_MeshNode* node2 = aFace->GetNode(2);
            const SMDS_MeshNode* node3 = aFace->GetNode(3);

const vector<UVPtStruct>& StdMeshers_FaceSide::GetUVPtStruct(bool   isXConst,
                                                             double constValue) const
{
  if ( myPoints.empty() ) {

    if ( NbEdges() == 0 ) return myPoints;

    SMESHDS_Mesh* meshDS = myMesh->GetMeshDS();

    // sort nodes of all edges putting them into a map

    map< double, const SMDS_MeshNode*> u2node;
    //int nbOnDegen = 0;
    for ( int i = 0; i < myEdge.size(); ++i )
    {
      // put 1st vertex node
      TopoDS_Vertex VFirst, VLast;
      TopExp::Vertices( myEdge[i], VFirst, VLast, true);
      const SMDS_MeshNode* node = SMESH_Algo::VertexNode( VFirst, meshDS );
      double prevNormPar = ( i == 0 ? 0 : myNormPar[ i-1 ]); // normalized param
      if ( node ) { // internal nodes may be missing
        u2node.insert( make_pair( prevNormPar, node ));
      } else if ( i == 0 ) {
        MESSAGE(" NO NODE on VERTEX" );
        return myPoints;
      }

      // put 2nd vertex node for a last edge
      if ( i+1 == myEdge.size() ) {
        node = SMESH_Algo::VertexNode( VLast, meshDS );
        if ( !node ) {
          MESSAGE(" NO NODE on VERTEX" );
          return myPoints;
        }
        u2node.insert( make_pair( 1., node ));
      }

      // put internal nodes
      SMESHDS_SubMesh* sm = meshDS->MeshElements( myEdge[i] );
      if ( !sm ) continue;
      SMDS_NodeIteratorPtr nItr = sm->GetNodes();
      double paramSize = myLast[i] - myFirst[i], r = myNormPar[i] - prevNormPar;
      while ( nItr->more() ) {
        const SMDS_MeshNode* node = nItr->next();
        if ( myIgnoreMediumNodes && SMESH_MeshEditor::IsMedium( node, SMDSAbs_Edge ))
          continue;
        const SMDS_EdgePosition* epos =
          static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
        double u = epos->GetUParameter();
        // paramSize is signed so orientation is taken into account
        double normPar = prevNormPar + r * ( u - myFirst[i] ) / paramSize;
#ifdef _DEBUG_
        if ( normPar > 1 || normPar < 0) {
          dump("DEBUG");
          MESSAGE ( "WRONG normPar: "<<normPar<< " prevNormPar="<<prevNormPar
                    << " u="<<u << " myFirst[i]="<<myFirst[i]<< " myLast[i]="<<myLast[i]
                    << " paramSize="<<paramSize );
        }
#endif
        u2node.insert( make_pair( normPar, node ));
      }
    }
    if ( u2node.size() != myNbPonits ) {
      MESSAGE("Wrong node parameters on edges, u2node.size():"
              <<u2node.size()<<" !=  myNbPonits:"<<myNbPonits);
      return myPoints;
    }

    // fill array of UVPtStruct

    vector<uvPtStruct>* points = const_cast<vector<uvPtStruct>*>( &myPoints );
    points->resize( myNbPonits );

    int EdgeIndex = 0;
    double prevNormPar = 0, paramSize = myNormPar[ EdgeIndex ];
    map< double, const SMDS_MeshNode*>::iterator u_node = u2node.begin();
    for (int i = 0 ; u_node != u2node.end(); ++u_node, ++i ) {
      UVPtStruct & uvPt = (*points)[i];
      uvPt.node = u_node->second;
      uvPt.x = uvPt.y = uvPt.normParam = u_node->first;
      if ( isXConst ) uvPt.x = constValue;
      else            uvPt.y = constValue;
      if ( myNormPar[ EdgeIndex ] < uvPt.normParam ) {
        prevNormPar = myNormPar[ EdgeIndex ];
        ++EdgeIndex;
#ifdef _DEBUG_
        if ( EdgeIndex >= myEdge.size() ) {
          dump("DEBUG");
          MESSAGE ( "WRONg EdgeIndex " << 1+EdgeIndex
                    << " myNormPar.size()="<<myNormPar.size()
                    << " myNormPar["<< EdgeIndex<<"]="<< myNormPar[ EdgeIndex ]
                    << " uvPt.normParam="<<uvPt.normParam );
        }
#endif
        paramSize = myNormPar[ EdgeIndex ] - prevNormPar;
      }
      const SMDS_EdgePosition* epos =
        dynamic_cast<const SMDS_EdgePosition*>(uvPt.node->GetPosition().get());
      if ( epos ) {
        uvPt.param = epos->GetUParameter();
//.........这里部分代码省略.........

//.........这里部分代码省略.........
            hypoth.push_back(hyp1d);
        }

        if (regular) {
            StdMeshers_Regular_1D* hyp1d = new StdMeshers_Regular_1D(hyp++,0,meshgen);
            hypoth.push_back(hyp1d);
        }

        StdMeshers_TrianglePreference* hyp2d_1 = new StdMeshers_TrianglePreference(hyp++,0,meshgen);
        hypoth.push_back(hyp2d_1);
        StdMeshers_MEFISTO_2D* alg2d = new StdMeshers_MEFISTO_2D(hyp++,0,meshgen);
        hypoth.push_back(alg2d);
    } break;
#endif
    default:
        break;
    }

    // Set new cout
    MeshingOutput stdcout;
    std::streambuf* oldcout = std::cout.rdbuf(&stdcout);

    // Apply the hypothesis and create the mesh
    mesh->ShapeToMesh(shape);
    for (int i=0; i<hyp;i++)
        mesh->AddHypothesis(shape, i);
    meshgen->Compute(*mesh, mesh->GetShapeToMesh());

    // Restore old cout
    std::cout.rdbuf(oldcout);

    // build up the mesh structure
    SMDS_FaceIteratorPtr aFaceIter = mesh->GetMeshDS()->facesIterator();
    SMDS_NodeIteratorPtr aNodeIter = mesh->GetMeshDS()->nodesIterator();

    MeshCore::MeshPointArray verts;
    MeshCore::MeshFacetArray faces;
    verts.reserve(mesh->NbNodes());
    faces.reserve(mesh->NbFaces());

    int index=0;
    std::map<const SMDS_MeshNode*, int> mapNodeIndex;
    for (;aNodeIter->more();) {
        const SMDS_MeshNode* aNode = aNodeIter->next();
        MeshCore::MeshPoint p;
        p.Set((float)aNode->X(), (float)aNode->Y(), (float)aNode->Z());
        verts.push_back(p);
        mapNodeIndex[aNode] = index++;
    }
    for (;aFaceIter->more();) {
        const SMDS_MeshFace* aFace = aFaceIter->next();
        if (aFace->NbNodes() == 3) {
            MeshCore::MeshFacet f;
            for (int i=0; i<3;i++) {
                const SMDS_MeshNode* node = aFace->GetNode(i);
                f._aulPoints[i] = mapNodeIndex[node];
            }
            faces.push_back(f);
        }
        else if (aFace->NbNodes() == 4) {
            MeshCore::MeshFacet f1, f2;
            const SMDS_MeshNode* node0 = aFace->GetNode(0);
            const SMDS_MeshNode* node1 = aFace->GetNode(1);
            const SMDS_MeshNode* node2 = aFace->GetNode(2);
            const SMDS_MeshNode* node3 = aFace->GetNode(3);

  const SMDS_MeshElement* next()
  {
	if ( myType == SMDSAbs_Node && (myNodeIt!=NULL) )
      return myNodeIt->next();
    const SMDS_MeshElement* res = myElem;
    myElem = 0;
    while ( (myElemIt!=NULL) && myElemIt->more() ) {
      myElem = myElemIt->next();
      if ( myElem && myElem->GetType() == myType )
        break;
      else
        myElem = 0;
    }
  }

 bool more()
 {
   if ( myType == SMDSAbs_Node && myNodeIt )
     return myNodeIt->more();
   return ( myElem != 0 );
 }