1 // Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // SMESH SMESH : implementaion of SMESH idl descriptions
24 // File : StdMeshers_Prism_3D.hxx
27 #ifndef _SMESH_Prism_3D_HXX_
28 #define _SMESH_Prism_3D_HXX_
30 #include "SMESH_StdMeshers.hxx"
32 #include "SMESH_3D_Algo.hxx"
33 #include "SMDS_TypeOfPosition.hxx"
34 #include "SMDS_MeshNode.hxx"
35 #include "SMESH_Block.hxx"
36 #include "SMESH_Mesh.hxx"
37 #include "SMESHDS_Mesh.hxx"
38 #include "SMESH_subMesh.hxx"
39 #include "SMESH_MesherHelper.hxx"
40 #include "SMESH_Comment.hxx"
44 #include <Adaptor3d_Curve.hxx>
45 #include <Adaptor3d_Surface.hxx>
46 #include <Adaptor2d_Curve2d.hxx>
47 #include <BRepAdaptor_Surface.hxx>
48 #include <TopTools_IndexedMapOfOrientedShape.hxx>
50 #include <gp_Trsf.hxx>
53 class SMESHDS_SubMesh;
58 //typedef std::map<const SMDS_MeshNode*, const SMDS_MeshNode*> TNodeNodeMap;
59 typedef std::vector<const SMDS_MeshNode* > TNodeColumn;
61 // map of bottom nodes to the column of nodes above them
62 // (the column includes the bottom nodes)
63 typedef std::map< TNode, TNodeColumn > TNode2ColumnMap;
64 typedef std::map< double, TNodeColumn > TParam2ColumnMap;
65 typedef std::map< double, TNodeColumn >::const_iterator TParam2ColumnIt;
67 typedef TopTools_IndexedMapOfOrientedShape TBlockShapes;
69 // ===============================================
71 * \brief Structure containing node relative data
73 // ===============================================
77 const SMDS_MeshNode* myNode;
78 mutable gp_XYZ myParams;
80 gp_XYZ GetCoords() const { return gp_XYZ( myNode->X(), myNode->Y(), myNode->Z() ); }
81 gp_XYZ GetParams() const { return myParams; }
82 gp_XYZ& ChangeParams() const { return myParams; }
83 bool HasParams() const { return myParams.X() >= 0.0; }
84 SMDS_TypeOfPosition GetPositionType() const
85 { return myNode ? myNode->GetPosition()->GetTypeOfPosition() : SMDS_TOP_UNSPEC; }
86 bool IsNeighbor( const TNode& other ) const;
88 TNode(const SMDS_MeshNode* node = 0): myNode(node), myParams(-1,-1,-1) {}
89 bool operator < (const TNode& other) const { return myNode->GetID() < other.myNode->GetID(); }
92 // ===============================================================
94 * \brief Tool analyzing and giving access to a prism geometry
95 * treating it like a block, i.e. the four side faces are
96 * emulated by division/uniting of missing/excess faces.
97 * It also manage associations between block subshapes and a mesh.
99 // ===============================================================
101 class STDMESHERS_EXPORT StdMeshers_PrismAsBlock: public SMESH_Block
105 * \brief Constructor. Initialization is needed
107 StdMeshers_PrismAsBlock();
109 ~StdMeshers_PrismAsBlock();
112 * \brief Initialization.
113 * \param helper - helper loaded with mesh and 3D shape
114 * \param shape3D - a closed shell or solid
115 * \retval bool - false if a mesh or a shape are KO
117 * Analyse shape geometry and mesh.
118 * If there are triangles on one of faces, it becomes 'bottom'
120 bool Init(SMESH_MesherHelper* helper, const TopoDS_Shape& shape3D);
123 * \brief Return problem description
125 SMESH_ComputeErrorPtr GetError() const { return myError; }
128 * \brief Return number of nodes on every vertical edge
129 * \retval int - number of nodes including end nodes
131 int VerticalSize() const { return myParam2ColumnMaps[0].begin()->second.size(); }
133 bool HasNotQuadElemOnTop() const { return myNotQuadOnTop; }
136 * \brief Return pointer to column of nodes
137 * \param node - bottom node from which the returned column goes up
138 * \retval const TNodeColumn* - the found column
140 const TNodeColumn* GetNodeColumn(const SMDS_MeshNode* node) const;
143 * \brief Return TParam2ColumnMap for a base edge
144 * \param baseEdgeID - base edge SMESHDS Index
145 * \param isReverse - columns in-block orientation
146 * \retval const TParam2ColumnMap& - map
148 const TParam2ColumnMap& GetParam2ColumnMap(const int baseEdgeID,
149 bool & isReverse) const
151 std::pair< TParam2ColumnMap*, bool > col_frw =
152 myShapeIndex2ColumnMap.find( baseEdgeID )->second;
153 isReverse = !col_frw.second;
154 return * col_frw.first;
158 * \brief Return transformations to get coordinates of nodes of each internal layer
159 * by nodes of the bottom. Layer is a set of nodes at a certain step
160 * from bottom to top.
162 bool GetLayersTransformation(std::vector<gp_Trsf> & trsf) const;
165 * \brief Return pointer to mesh
166 * \retval SMESH_Mesh - mesh
168 SMESH_Mesh* Mesh() const { return myHelper->GetMesh(); }
171 * \brief Return pointer to mesh DS
172 * \retval SMESHDS_Mesh - mesh DS
174 SMESHDS_Mesh* MeshDS() const { return Mesh()->GetMeshDS(); }
177 * \brief Return submesh of a shape
178 * \param shapeID - shape given by in-block index
179 * \retval SMESH_subMesh* - found submesh
181 SMESH_subMesh* SubMesh(const int shapeID) const
182 { return Mesh()->GetSubMesh( Shape( shapeID )); }
185 * \brief Return submesh DS of a shape
186 * \param shapeID - shape given by in-block index
187 * \retval SMESHDS_SubMesh* - found submesh DS
189 SMESHDS_SubMesh* SubMeshDS(const int shapeID) const
190 { return SubMesh(shapeID)->GetSubMeshDS(); }
193 * \brief Return a in-block shape
194 * \param shapeID - shape given by in-block index
195 * \retval SMESHDS_SubMesh* - found submesh
197 const TopoDS_Shape& Shape(const int shapeID) const
198 { return myShapeIDMap( shapeID ); }
201 * \brief Return in-block ID of a shape
202 * \param shape - block subshape
203 * \retval int - ID or zero if the shape has no ID
205 int ShapeID(const TopoDS_Shape& shape) const
206 { return myShapeIDMap.FindIndex( shape ); }
209 * \brief Check curve orientation of a bootom edge
210 * \param meshDS - mesh DS
211 * \param columnsMap - node columns map of side face
212 * \param bottomEdge - the bootom edge
213 * \param sideFaceID - side face in-block ID
214 * \retval bool - true if orienation coinside with in-block froward orienation
216 static bool IsForwardEdge(SMESHDS_Mesh* meshDS,
217 const TParam2ColumnMap& columnsMap,
218 const TopoDS_Edge & bottomEdge,
219 const int sideFaceID);
221 * \brief Find wall faces by bottom edges
222 * \param mesh - the mesh
223 * \param mainShape - the prism
224 * \param bottomFace - the bottom face
225 * \param bottomEdges - edges bounding the bottom face
226 * \param wallFaces - faces list to fill in
228 static bool GetWallFaces( SMESH_Mesh* mesh,
229 const TopoDS_Shape & mainShape,
230 const TopoDS_Shape & bottomFace,
231 const std::list< TopoDS_Edge >& bottomEdges,
232 std::list< TopoDS_Face >& wallFaces);
236 // --------------------------------------------------------------------
238 * \brief Class representing a part of a geom face or
239 * a union of seleral faces. Or just an ordinary geom face
241 * It's parametrization is within [0,1] range.
242 * It redefines Adaptor3d_Surface::Value(U,V) where U and V are within [0,1]
244 // --------------------------------------------------------------------
245 class TSideFace: public Adaptor3d_Surface
247 int myID; //!< in-block ID
248 // map used to find out real UV by it's normalized UV
249 TParam2ColumnMap* myParamToColumnMap;
250 BRepAdaptor_Surface mySurface;
251 TopoDS_Edge myBaseEdge;
252 // first and last normalized params and orientaion for each component or it-self
253 std::vector< std::pair< double, double> > myParams;
255 std::vector< TSideFace* > myComponents;
256 SMESH_MesherHelper * myHelper;
258 TSideFace( SMESH_MesherHelper* helper,
260 const TopoDS_Face& face,
261 const TopoDS_Edge& baseEdge,
262 TParam2ColumnMap* columnsMap,
263 const double first = 0.0,
264 const double last = 1.0);
265 TSideFace( const std::vector< TSideFace* >& components,
266 const std::vector< std::pair< double, double> > & params);
267 TSideFace( const TSideFace& other );
269 bool IsComplex() const
270 { return ( NbComponents() > 0 || myParams[0].first != 0. || myParams[0].second != 1. ); }
271 int FaceID() const { return myID; }
272 TParam2ColumnMap* GetColumns() const { return myParamToColumnMap; }
273 gp_XY GetNodeUV(const TopoDS_Face& F, const SMDS_MeshNode* n) const
274 { return myHelper->GetNodeUV( F, n ); }
275 const TopoDS_Edge & BaseEdge() const { return myBaseEdge; }
276 int ColumnHeight() const {
277 if ( NbComponents() ) return GetComponent(0)->GetColumns()->begin()->second.size();
278 else return GetColumns()->begin()->second.size(); }
279 double GetColumns(const double U, TParam2ColumnIt & col1, TParam2ColumnIt& col2 ) const;
280 int NbComponents() const { return myComponents.size(); }
281 TSideFace* GetComponent(const int i) const { return myComponents.at( i ); }
282 void SetComponent(const int i, TSideFace* c)
283 { if ( myComponents[i] ) delete myComponents[i]; myComponents[i]=c; }
284 TSideFace* GetComponent(const double U, double& localU) const;
285 bool IsForward() const { return myIsForward; }
286 // boundary geometry for a face
287 Adaptor3d_Surface* Surface() const { return new TSideFace( *this ); }
288 bool GetPCurves(Adaptor2d_Curve2d* pcurv[4]) const;
289 Adaptor2d_Curve2d* HorizPCurve(const bool isTop, const TopoDS_Face& horFace) const;
290 Adaptor3d_Curve* HorizCurve(const bool isTop) const;
291 Adaptor3d_Curve* VertiCurve(const bool isMax) const;
292 TopoDS_Edge GetEdge( const int edge ) const;
293 int InsertSubShapes( TBlockShapes& shapeMap ) const;
294 // redefine Adaptor methods
295 gp_Pnt Value(const Standard_Real U,const Standard_Real V) const;
297 void dumpNodes(int nbNodes) const;
300 // --------------------------------------------------------------------
302 * \brief Class emulating geometry of a vertical edge
304 // --------------------------------------------------------------------
305 class STDMESHERS_EXPORT TVerticalEdgeAdaptor: public Adaptor3d_Curve
307 const TNodeColumn* myNodeColumn;
309 TVerticalEdgeAdaptor( const TParam2ColumnMap* columnsMap, const double parameter );
310 gp_Pnt Value(const Standard_Real U) const;
311 Standard_Real FirstParameter() const { return 0; }
312 Standard_Real LastParameter() const { return 1; }
314 void dumpNodes(int nbNodes) const;
317 // --------------------------------------------------------------------
319 * \brief Class emulating geometry of a hirizontal edge
321 // --------------------------------------------------------------------
322 class STDMESHERS_EXPORT THorizontalEdgeAdaptor: public Adaptor3d_Curve
324 const TSideFace* mySide;
327 THorizontalEdgeAdaptor( const TSideFace* sideFace, const bool isTop)
328 :mySide(sideFace), myV( isTop ? 1.0 : 0.0 ) {}
329 gp_Pnt Value(const Standard_Real U) const;
330 Standard_Real FirstParameter() const { return 0; }
331 Standard_Real LastParameter() const { return 1; }
333 void dumpNodes(int nbNodes) const;
336 // --------------------------------------------------------------------
338 * \brief Class emulating pcurve on a hirizontal face
340 // --------------------------------------------------------------------
341 class STDMESHERS_EXPORT TPCurveOnHorFaceAdaptor: public Adaptor2d_Curve2d
343 const TSideFace* mySide;
347 TPCurveOnHorFaceAdaptor( const TSideFace* sideFace,
349 const TopoDS_Face& horFace)
350 : mySide(sideFace), myFace(horFace), myZ(isTop ? mySide->ColumnHeight() - 1 : 0 ) {}
351 gp_Pnt2d Value(const Standard_Real U) const;
352 Standard_Real FirstParameter() const { return 0; }
353 Standard_Real LastParameter() const { return 1; }
357 SMESH_MesherHelper* myHelper;
358 TBlockShapes myShapeIDMap;
359 SMESH_ComputeErrorPtr myError;
361 // container of 4 side faces
363 // node columns for each base edge
364 std::vector< TParam2ColumnMap > myParam2ColumnMaps;
365 // to find a column for a node by edge SMESHDS Index
366 std::map< int, std::pair< TParam2ColumnMap*, bool > > myShapeIndex2ColumnMap;
369 * \brief store error and comment and then return ( error == COMPERR_OK )
371 bool error(int error, const SMESH_Comment& comment = "") {
372 myError = SMESH_ComputeError::New(error,comment);
373 return myError->IsOK();
377 // =============================================
379 * \brief Algo building prisms on a prism shape
381 // =============================================
383 class STDMESHERS_EXPORT StdMeshers_Prism_3D: public SMESH_3D_Algo
386 StdMeshers_Prism_3D(int hypId, int studyId, SMESH_Gen* gen);
387 virtual ~StdMeshers_Prism_3D();
389 virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
390 const TopoDS_Shape& aShape,
391 SMESH_Hypothesis::Hypothesis_Status& aStatus);
393 virtual bool Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape);
395 virtual bool Evaluate(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape,
396 MapShapeNbElems& aResMap);
399 * \brief Enable removal of quadrangles from the bottom face and
400 * triangles creation there by projection from the top
401 * (sole face meshed with triangles is considered to be a bottom one).
402 * If there are two faces with triangles, triangles must
403 * be of the same topology, else the algo fails.
404 * The method must be called before Compute()
406 void ProjectTriangles() { myProjectTriangles = true; }
409 * \brief Create prisms
410 * \param nodeColumns - columns of nodes generated from nodes of a mesh face
411 * \param helper - helper initialized by mesh and shape to add prisms to
413 static void AddPrisms( std::vector<const TNodeColumn*> & nodeColumns,
414 SMESH_MesherHelper* helper);
419 * \brief Find correspondence between bottom and top nodes.
420 * If elements on the bottom and top faces are topologically different,
421 * and projection is possible and allowed, perform the projection
422 * \retval bool - is a success or not
424 bool assocOrProjBottom2Top();
427 * \brief Remove quadrangles from the top face and
428 * create triangles there by projection from the bottom
429 * \retval bool - a success or not
431 bool projectBottomToTop();
434 * \brief Set projection coordinates of a node to a face and it's subshapes
435 * \param faceID - the face given by in-block ID
436 * \param params - node normalized parameters
437 * \retval bool - is a success
439 bool setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z );
443 bool myProjectTriangles;
445 StdMeshers_PrismAsBlock myBlock;
446 SMESH_MesherHelper* myHelper;
448 std::vector<gp_XYZ> myShapeXYZ; // point on each sub-shape of the block
450 // map of bottom nodes to the column of nodes above them
451 // (the column includes the bottom node)
452 TNode2ColumnMap myBotToColumnMap;