1 // SMESH SMESH : implementaion of SMESH idl descriptions
3 // Copyright (C) 2003 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
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>
52 class SMESHDS_SubMesh;
57 //typedef std::map<const SMDS_MeshNode*, const SMDS_MeshNode*> TNodeNodeMap;
58 typedef std::vector<const SMDS_MeshNode* > TNodeColumn;
60 // map of bottom nodes to the column of nodes above them
61 // (the column includes the bottom nodes)
62 typedef std::map< TNode, TNodeColumn > TNode2ColumnMap;
63 typedef std::map< double, TNodeColumn > TParam2ColumnMap;
64 typedef std::map< double, TNodeColumn >::const_iterator TParam2ColumnIt;
66 typedef TopTools_IndexedMapOfOrientedShape TBlockShapes;
68 // ===============================================
70 * \brief Structure containing node relative data
72 // ===============================================
76 const SMDS_MeshNode* myNode;
79 gp_XYZ GetCoords() const { return gp_XYZ( myNode->X(), myNode->Y(), myNode->Z() ); }
80 gp_XYZ GetParams() const { return myParams; }
81 gp_XYZ& ChangeParams() { return myParams; }
82 SMDS_TypeOfPosition GetPositionType() const
83 { return myNode ? myNode->GetPosition()->GetTypeOfPosition() : SMDS_TOP_UNSPEC; }
85 TNode(const SMDS_MeshNode* node = 0): myNode(node) {}
86 bool operator < (const TNode& other) const { return myNode < other.myNode; }
89 // ===============================================================
91 * \brief Tool analyzing and giving access to a prism geometry
92 * treating it like a block, i.e. the four side faces are
93 * emulated by division/uniting of missing/excess faces.
94 * It also manage associations between block subshapes and a mesh.
96 // ===============================================================
98 class STDMESHERS_EXPORT StdMeshers_PrismAsBlock: public SMESH_Block
102 * \brief Constructor. Initialization is needed
104 StdMeshers_PrismAsBlock();
106 ~StdMeshers_PrismAsBlock();
109 * \brief Initialization.
110 * \param helper - helper loaded with mesh and 3D shape
111 * \param shape3D - a closed shell or solid
112 * \retval bool - false if a mesh or a shape are KO
114 * Analyse shape geometry and mesh.
115 * If there are triangles on one of faces, it becomes 'bottom'
117 bool Init(SMESH_MesherHelper* helper, const TopoDS_Shape& shape3D);
120 * \brief Return problem description
122 SMESH_ComputeErrorPtr GetError() const { return myError; }
125 * \brief Return number of nodes on every vertical edge
126 * \retval int - number of nodes including end nodes
128 int VerticalSize() const { return myParam2ColumnMaps[0].begin()->second.size(); }
130 bool HasNotQuadElemOnTop() const { return myNotQuadOnTop; }
133 * \brief Return pointer to column of nodes
134 * \param node - bottom node from which the returned column goes up
135 * \retval const TNodeColumn* - the found column
137 const TNodeColumn* GetNodeColumn(const SMDS_MeshNode* node) const;
140 * \brief Return TParam2ColumnMap for a base edge
141 * \param baseEdgeID - base edge SMESHDS Index
142 * \param isReverse - columns in-block orientation
143 * \retval const TParam2ColumnMap& - map
145 const TParam2ColumnMap& GetParam2ColumnMap(const int baseEdgeID,
148 std::pair< TParam2ColumnMap*, bool > & col_frw =
149 myShapeIndex2ColumnMap[ baseEdgeID ];
150 isReverse = !col_frw.second;
151 return * col_frw.first;
155 * \brief Return pointer to mesh
156 * \retval SMESH_Mesh - mesh
158 SMESH_Mesh* Mesh() const { return myHelper->GetMesh(); }
161 * \brief Return pointer to mesh DS
162 * \retval SMESHDS_Mesh - mesh DS
164 SMESHDS_Mesh* MeshDS() const { return Mesh()->GetMeshDS(); }
167 * \brief Return submesh of a shape
168 * \param shapeID - shape given by in-block index
169 * \retval SMESH_subMesh* - found submesh
171 SMESH_subMesh* SubMesh(const int shapeID) const
172 { return Mesh()->GetSubMesh( Shape( shapeID )); }
175 * \brief Return submesh DS of a shape
176 * \param shapeID - shape given by in-block index
177 * \retval SMESHDS_SubMesh* - found submesh DS
179 SMESHDS_SubMesh* SubMeshDS(const int shapeID) const
180 { return SubMesh(shapeID)->GetSubMeshDS(); }
183 * \brief Return a in-block shape
184 * \param shapeID - shape given by in-block index
185 * \retval SMESHDS_SubMesh* - found submesh
187 const TopoDS_Shape& Shape(const int shapeID) const
188 { return myShapeIDMap( shapeID ); }
191 * \brief Return in-block ID of a shape
192 * \param shape - block subshape
193 * \retval int - ID or zero if the shape has no ID
195 int ShapeID(const TopoDS_Shape& shape) const
196 { return myShapeIDMap.FindIndex( shape ); }
199 * \brief Check curve orientation of a bootom edge
200 * \param meshDS - mesh DS
201 * \param columnsMap - node columns map of side face
202 * \param bottomEdge - the bootom edge
203 * \param sideFaceID - side face in-block ID
204 * \retval bool - true if orienation coinside with in-block froward orienation
206 static bool IsForwardEdge(SMESHDS_Mesh* meshDS,
207 const TParam2ColumnMap& columnsMap,
208 const TopoDS_Edge & bottomEdge,
209 const int sideFaceID);
211 * \brief Find wall faces by bottom edges
212 * \param mesh - the mesh
213 * \param mainShape - the prism
214 * \param bottomFace - the bottom face
215 * \param bottomEdges - edges bounding the bottom face
216 * \param wallFaces - faces list to fill in
218 static bool GetWallFaces( SMESH_Mesh* mesh,
219 const TopoDS_Shape & mainShape,
220 const TopoDS_Shape & bottomFace,
221 const std::list< TopoDS_Edge >& bottomEdges,
222 std::list< TopoDS_Face >& wallFaces);
226 // --------------------------------------------------------------------
228 * \brief Class representing a part of a geom face or
229 * a union of seleral faces. Or just an ordinary geom face
231 * It's parametrization is within [0,1] range.
232 * It redefines Adaptor3d_Surface::Value(U,V) where U and V are within [0,1]
234 // --------------------------------------------------------------------
235 class TSideFace: public Adaptor3d_Surface
237 int myID; //!< in-block ID
238 // map used to find out real UV by it's normalized UV
239 TParam2ColumnMap* myParamToColumnMap;
240 BRepAdaptor_Surface mySurface;
241 TopoDS_Edge myBaseEdge;
242 // first and last normalized params and orientaion for each component or it-self
243 vector< pair< double, double> > myParams;
245 vector< TSideFace* > myComponents;
246 SMESH_MesherHelper * myHelper;
248 TSideFace( SMESH_MesherHelper* helper,
250 const TopoDS_Face& face,
251 const TopoDS_Edge& baseEdge,
252 TParam2ColumnMap* columnsMap,
253 const double first = 0.0,
254 const double last = 1.0);
255 TSideFace( const std::vector< TSideFace* >& components,
256 const std::vector< pair< double, double> > & params);
257 TSideFace( const TSideFace& other );
259 bool IsComplex() const
260 { return ( NbComponents() > 0 || myParams[0].first != 0. || myParams[0].second != 1. ); }
261 int FaceID() const { return myID; }
262 TParam2ColumnMap* GetColumns() const { return myParamToColumnMap; }
263 gp_XY GetNodeUV(const TopoDS_Face& F, const SMDS_MeshNode* n) const
264 { return myHelper->GetNodeUV( F, n ); }
265 const TopoDS_Edge & BaseEdge() const { return myBaseEdge; }
266 int ColumnHeight() const {
267 if ( NbComponents() ) return GetComponent(0)->GetColumns()->begin()->second.size();
268 else return GetColumns()->begin()->second.size(); }
269 double GetColumns(const double U, TParam2ColumnIt & col1, TParam2ColumnIt& col2 ) const;
270 int NbComponents() const { return myComponents.size(); }
271 TSideFace* GetComponent(const int i) const { return myComponents.at( i ); }
272 void SetComponent(const int i, TSideFace* c)
273 { if ( myComponents[i] ) delete myComponents[i]; myComponents[i]=c; }
274 TSideFace* GetComponent(const double U, double& localU) const;
275 bool IsForward() const { return myIsForward; }
276 // boundary geometry for a face
277 Adaptor3d_Surface* Surface() const { return new TSideFace( *this ); }
278 bool GetPCurves(Adaptor2d_Curve2d* pcurv[4]) const;
279 Adaptor2d_Curve2d* HorizPCurve(const bool isTop, const TopoDS_Face& horFace) const;
280 Adaptor3d_Curve* HorizCurve(const bool isTop) const;
281 Adaptor3d_Curve* VertiCurve(const bool isMax) const;
282 TopoDS_Edge GetEdge( const int edge ) const;
283 int InsertSubShapes( TBlockShapes& shapeMap ) const;
284 // redefine Adaptor methods
285 gp_Pnt Value(const Standard_Real U,const Standard_Real V) const;
288 // --------------------------------------------------------------------
290 * \brief Class emulating geometry of a vertical edge
292 // --------------------------------------------------------------------
293 class STDMESHERS_EXPORT TVerticalEdgeAdaptor: public Adaptor3d_Curve
295 const TNodeColumn* myNodeColumn;
297 TVerticalEdgeAdaptor( const TParam2ColumnMap* columnsMap, const double parameter );
298 gp_Pnt Value(const Standard_Real U) const;
299 Standard_Real FirstParameter() const { return 0; }
300 Standard_Real LastParameter() const { return 1; }
303 // --------------------------------------------------------------------
305 * \brief Class emulating geometry of a hirizontal edge
307 // --------------------------------------------------------------------
308 class STDMESHERS_EXPORT THorizontalEdgeAdaptor: public Adaptor3d_Curve
310 const TSideFace* mySide;
313 THorizontalEdgeAdaptor( const TSideFace* sideFace, const bool isTop)
314 :mySide(sideFace), myV( isTop ? 1.0 : 0.0 ) {}
315 gp_Pnt Value(const Standard_Real U) const;
316 Standard_Real FirstParameter() const { return 0; }
317 Standard_Real LastParameter() const { return 1; }
320 // --------------------------------------------------------------------
322 * \brief Class emulating pcurve on a hirizontal face
324 // --------------------------------------------------------------------
325 class STDMESHERS_EXPORT TPCurveOnHorFaceAdaptor: public Adaptor2d_Curve2d
327 const TSideFace* mySide;
331 TPCurveOnHorFaceAdaptor( const TSideFace* sideFace,
333 const TopoDS_Face& horFace)
334 : mySide(sideFace), myFace(horFace), myZ(isTop ? mySide->ColumnHeight() - 1 : 0 ) {}
335 gp_Pnt2d Value(const Standard_Real U) const;
336 Standard_Real FirstParameter() const { return 0; }
337 Standard_Real LastParameter() const { return 1; }
339 // --------------------------------------------------------------------
342 SMESH_MesherHelper* myHelper;
343 TBlockShapes myShapeIDMap;
345 // container of 4 side faces
347 // node columns for each base edge
348 vector< TParam2ColumnMap > myParam2ColumnMaps;
349 // to find a column for a node by edge SMESHDS Index
350 map< int, pair< TParam2ColumnMap*, bool > > myShapeIndex2ColumnMap;
352 SMESH_ComputeErrorPtr myError;
354 * \brief store error and comment and then return ( error == COMPERR_OK )
356 bool error(int error, const SMESH_Comment& comment = "") {
357 myError = SMESH_ComputeError::New(error,comment);
358 return myError->IsOK();
360 //vector< SMESH_subMesh* > mySubMeshesVec; // submesh by in-block id
363 // =============================================
365 * \brief Algo building prisms on a prism shape
367 // =============================================
369 class STDMESHERS_EXPORT StdMeshers_Prism_3D: public SMESH_3D_Algo
372 StdMeshers_Prism_3D(int hypId, int studyId, SMESH_Gen* gen);
373 virtual ~StdMeshers_Prism_3D();
375 virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
376 const TopoDS_Shape& aShape,
377 SMESH_Hypothesis::Hypothesis_Status& aStatus);
379 virtual bool Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape);
382 * \brief Enable removal of quadrangles from the bottom face and
383 * triangles creation there by projection from the top
384 * (sole face meshed with triangles is considered to be a bottom one).
385 * If there are two faces with triangles, triangles must
386 * be of the same topology, else the algo fails.
387 * The method must be called before Compute()
389 void ProjectTriangles() { myProjectTriangles = true; }
392 * \brief Create prisms
393 * \param nodeColumns - columns of nodes generated from nodes of a mesh face
394 * \param helper - helper initialized by mesh and shape to add prisms to
396 static void AddPrisms( vector<const TNodeColumn*> & nodeColumns,
397 SMESH_MesherHelper* helper);
402 * \brief Find correspondence between bottom and top nodes.
403 * If elements on the bottom and top faces are topologically different,
404 * and projection is possible and allowed, perform the projection
405 * \retval bool - is a success or not
407 bool assocOrProjBottom2Top();
410 * \brief Remove quadrangles from the top face and
411 * create triangles there by projection from the bottom
412 * \retval bool - a success or not
414 bool projectBottomToTop();
417 * \brief Set projection coordinates of a node to a face and it's subshapes
418 * \param faceID - the face given by in-block ID
419 * \param params - node normalized parameters
420 * \retval bool - is a success
422 bool setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z );
426 bool myProjectTriangles;
428 StdMeshers_PrismAsBlock myBlock;
429 SMESH_MesherHelper* myHelper;
431 vector<gp_XYZ> myShapeXYZ; // point on each sub-shape
433 // map of bottom nodes to the column of nodes above them
434 // (the column includes the bottom node)
435 typedef std::map< TNode, TNodeColumn > TNode2ColumnMap;
436 TNode2ColumnMap myBotToColumnMap;