-// 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 <TopExp.hxx>
-#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
-#include <TopTools_ListOfShape.hxx>
-#include <TopTools_ListIteratorOfListOfShape.hxx>
-#include <TColStd_ListIteratorOfListOfInteger.hxx>
+#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 <BRep_Tool.hxx>
-#include <Geom_Surface.hxx>
-#include <Geom_Curve.hxx>
-#include <Geom2d_Curve.hxx>
-#include <Handle_Geom2d_Curve.hxx>
-#include <Handle_Geom_Curve.hxx>
-#include <gp_Pnt2d.hxx>
+#include <Bnd_B3d.hxx>
+#include <TopExp.hxx>
+#include <TopExp_Explorer.hxx>
+#include <TopTools_MapOfShape.hxx>
+#include <TopTools_SequenceOfShape.hxx>
+#include <TopoDS.hxx>
#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 <cstddef>
+
+#include <numeric>
+
+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<const SMESHDS_Hypothesis*>& hyps =
+ GetUsedHypothesis(aMesh, aShape, /*ignoreAuxiliary=*/false);
+ list <const SMESHDS_Hypothesis* >::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<const SMDS_FacePosition*>(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<gp_XYZ> 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<TNodeColumn> _columns;
+
+ // columns of normalized parameters of nodes within the unitary cube
+ vector<TXYZColumn> _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(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
- np[ijk].node = quad->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(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
- np[ijk].node = quad->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(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
- np[ijk].node = quad->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(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
- np[ijk].node = quad->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(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
- np[ijk].node = quad->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(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
- np[ijk].node = quad->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(" "<<i<<" "<<j<<" "<<k<<" "<<p[0]<<" "<<p[1]<<" "<<p[2]);
-}
+ // Find the left quad, one including v000 but not v100
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
+ for ( int iQ = 0; iQ < 6; ++iQ )
+ {
+ FaceQuadStructPtr quad = blockSide[iQ]._quad;
+ bool hasV000 = false, hasV100 = false;
+ for ( size_t iS = 0; iS < quad->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<TopoDS_Edge> 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<gp_XYZ> 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<int> aResVec(SMDSEntity_Last);
+ for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
+ SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
+ aResMap.insert(std::make_pair(sm,aResVec));
+ SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
+ 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<int> 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<int> 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<int> aVec = (*anIt).second;
+ nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
+ }
+
+ MapShapeNbElemsItr anIt = aResMap.find( meshFaces[0] );
+ std::vector<int> aVec = (*anIt).second;
+ int nb2d_face0 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
+ int nb0d_face0 = aVec[SMDSEntity_Node];
+
+ std::vector<int> aResVec(SMDSEntity_Last);
+ for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
+ if(IsQuadratic) {
+ aResVec[SMDSEntity_Quad_Hexa] = nb2d_face0 * ( nb2d/nb1d );
+ int nb1d_face0_int = ( nb2d_face0*4 - nb1d ) / 2;
+ aResVec[SMDSEntity_Node] = nb0d_face0 * ( 2*nb2d/nb1d - 1 ) - nb1d_face0_int * nb2d/nb1d;
+ }
+ else {
+ aResVec[SMDSEntity_Node] = nb0d_face0 * ( nb2d/nb1d - 1 );
+ aResVec[SMDSEntity_Hexa] = nb2d_face0 * ( nb2d/nb1d );
+ }
+ SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
+ aResMap.insert(std::make_pair(sm,aResVec));
+
+ return true;
}
-//=============================================================================
+//================================================================================
/*!
- *
+ * \brief Computes hexahedral mesh from 2D mesh of block
*/
-//=============================================================================
+//================================================================================
-ostream & operator <<(ostream & save, StdMeshers_Hexa_3D & hyp)
+bool StdMeshers_Hexa_3D::Compute(SMESH_Mesh & aMesh, SMESH_MesherHelper* aHelper)
{
- return hyp.SaveTo( save );
+ static StdMeshers_HexaFromSkin_3D * algo = 0;
+ if ( !algo ) {
+ SMESH_Gen* gen = aMesh.GetGen();
+ algo = new StdMeshers_HexaFromSkin_3D( gen->GetANewId(), 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 <stdio.h>
+ 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;
}
-
