1 // Copyright (C) 2007-2016 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, or (at your option) any later version.
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 // File : SMESH_MeshEditor.hxx
24 // Created : Mon Apr 12 14:56:19 2004
25 // Author : Edward AGAPOV (eap)
28 #ifndef SMESH_MeshEditor_HeaderFile
29 #define SMESH_MeshEditor_HeaderFile
31 #include "SMESH_SMESH.hxx"
33 #include "SMESH_Controls.hxx"
34 #include "SMESH_TypeDefs.hxx"
35 #include "SMESH_ComputeError.hxx"
37 #include <utilities.h>
39 #include <TColStd_HSequenceOfReal.hxx>
46 class SMDS_MeshElement;
50 class SMESHDS_SubMesh;
53 class SMESH_MesherHelper;
54 class SMESH_NodeSearcher;
63 // ============================================================
65 * \brief Editor of a mesh
67 // ============================================================
69 class SMESH_EXPORT SMESH_MeshEditor
73 SMESH_MeshEditor( SMESH_Mesh* theMesh );
75 SMESH_Mesh * GetMesh() { return myMesh; }
76 SMESHDS_Mesh * GetMeshDS();
78 const SMESH_SequenceOfElemPtr& GetLastCreatedNodes() const { return myLastCreatedNodes; }
79 const SMESH_SequenceOfElemPtr& GetLastCreatedElems() const { return myLastCreatedElems; }
80 void ClearLastCreated();
81 SMESH_ComputeErrorPtr & GetError() { return myError; }
83 // --------------------------------------------------------------------------------
84 struct ElemFeatures //!< Features of element to create
86 SMDSAbs_ElementType myType;
87 bool myIsPoly, myIsQuad;
89 double myBallDiameter;
90 std::vector<int> myPolyhedQuantities;
92 SMESH_EXPORT ElemFeatures( SMDSAbs_ElementType type=SMDSAbs_All, bool isPoly=false, bool isQuad=false )
93 :myType( type ), myIsPoly(isPoly), myIsQuad(isQuad), myID(-1), myBallDiameter(0) {}
95 SMESH_EXPORT ElemFeatures& Init( SMDSAbs_ElementType type, bool isPoly=false, bool isQuad=false )
96 { myType = type; myIsPoly = isPoly; myIsQuad = isQuad; return *this; }
98 SMESH_EXPORT ElemFeatures& Init( const SMDS_MeshElement* elem, bool basicOnly=true );
100 SMESH_EXPORT ElemFeatures& Init( double diameter )
101 { myType = SMDSAbs_Ball; myBallDiameter = diameter; return *this; }
103 SMESH_EXPORT ElemFeatures& Init( std::vector<int>& quanities, bool isQuad=false )
104 { myType = SMDSAbs_Volume; myIsPoly = 1; myIsQuad = isQuad;
105 myPolyhedQuantities.swap( quanities ); return *this; }
107 SMESH_EXPORT ElemFeatures& Init( const std::vector<int>& quanities, bool isQuad=false )
108 { myType = SMDSAbs_Volume; myIsPoly = 1; myIsQuad = isQuad;
109 myPolyhedQuantities = quanities; return *this; }
111 SMESH_EXPORT ElemFeatures& SetPoly(bool isPoly) { myIsPoly = isPoly; return *this; }
112 SMESH_EXPORT ElemFeatures& SetQuad(bool isQuad) { myIsQuad = isQuad; return *this; }
113 SMESH_EXPORT ElemFeatures& SetID (int ID) { myID = ID; return *this; }
119 SMDS_MeshElement* AddElement(const std::vector<const SMDS_MeshNode*> & nodes,
120 const ElemFeatures& features);
124 SMDS_MeshElement* AddElement(const std::vector<int> & nodeIDs,
125 const ElemFeatures& features);
127 int Remove (const std::list< int >& theElemIDs, const bool isNodes);
128 // Remove a node or an element.
129 // Modify a compute state of sub-meshes which become empty
131 void Create0DElementsOnAllNodes( const TIDSortedElemSet& elements,
132 TIDSortedElemSet& all0DElems,
133 const bool duplicateElements);
134 // Create 0D elements on all nodes of the given. \a all0DElems returns
135 // all 0D elements found or created on nodes of \a elements
137 bool InverseDiag (const SMDS_MeshElement * theTria1,
138 const SMDS_MeshElement * theTria2 );
139 // Replace two neighbour triangles with ones built on the same 4 nodes
140 // but having other common link.
141 // Return False if args are improper
143 bool InverseDiag (const SMDS_MeshNode * theNode1,
144 const SMDS_MeshNode * theNode2 );
145 // Replace two neighbour triangles sharing theNode1-theNode2 link
146 // with ones built on the same 4 nodes but having other common link.
147 // Return false if proper faces not found
149 bool DeleteDiag (const SMDS_MeshNode * theNode1,
150 const SMDS_MeshNode * theNode2 );
151 // Replace two neighbour triangles sharing theNode1-theNode2 link
152 // with a quadrangle built on the same 4 nodes.
153 // Return false if proper faces not found
155 bool Reorient (const SMDS_MeshElement * theElement);
156 // Reverse theElement orientation
158 int Reorient2D (TIDSortedElemSet & theFaces,
159 const gp_Dir& theDirection,
160 const SMDS_MeshElement * theFace);
161 // Reverse theFaces whose orientation to be same as that of theFace
162 // oriented according to theDirection. Return nb of reoriented faces
164 int Reorient2DBy3D (TIDSortedElemSet & theFaces,
165 TIDSortedElemSet & theVolumes,
166 const bool theOutsideNormal);
167 // Reorient faces basing on orientation of adjacent volumes.
168 // Return nb of reoriented faces
171 * \brief Fuse neighbour triangles into quadrangles.
172 * \param theElems - The triangles to be fused.
173 * \param theCriterion - Is used to choose a neighbour to fuse with.
174 * \param theMaxAngle - Is a max angle between element normals at which fusion
175 * is still performed; theMaxAngle is mesured in radians.
176 * \return bool - Success or not.
178 bool TriToQuad (TIDSortedElemSet & theElems,
179 SMESH::Controls::NumericalFunctorPtr theCriterion,
180 const double theMaxAngle);
182 * \brief Split quadrangles into triangles.
183 * \param theElems - The faces to be splitted.
184 * \param theCriterion - Is used to choose a diagonal for splitting.
185 * \return bool - Success or not.
187 bool QuadToTri (TIDSortedElemSet & theElems,
188 SMESH::Controls::NumericalFunctorPtr theCriterion);
190 * \brief Split quadrangles into triangles.
191 * \param theElems - The faces to be splitted.
192 * \param the13Diag - Is used to choose a diagonal for splitting.
193 * \return bool - Success or not.
195 bool QuadToTri (TIDSortedElemSet & theElems,
196 const bool the13Diag);
198 * \brief Split each of given quadrangles into 4 triangles.
199 * \param theElems - The faces to be splitted. If empty all faces are split.
201 void QuadTo4Tri (TIDSortedElemSet & theElems);
204 * \brief Find better diagonal for splitting.
205 * \param theQuad - The face to find better splitting of.
206 * \param theCriterion - Is used to choose a diagonal for splitting.
207 * \return int - 1 for 1-3 diagonal, 2 for 2-4, -1 - for errors.
209 int BestSplit (const SMDS_MeshElement* theQuad,
210 SMESH::Controls::NumericalFunctorPtr theCriterion);
213 typedef std::map < const SMDS_MeshElement*, int, TIDCompare > TFacetOfElem;
215 //!<2nd arg of SplitVolumes()
216 enum SplitVolumToTetraFlags { HEXA_TO_5 = 1, // split into tetrahedra
219 HEXA_TO_2_PRISMS, // split into prisms
222 * \brief Split volumic elements into tetrahedra or prisms.
223 * If facet ID < 0, element is split into tetrahedra,
224 * else a hexahedron is split into prisms so that the given facet is
225 * split into triangles
227 void SplitVolumes (const TFacetOfElem & theElems, const int theMethodFlags);
230 * \brief For hexahedra that will be split into prisms, finds facets to
231 * split into triangles
232 * \param [in,out] theHexas - the hexahedra
233 * \param [in] theFacetNormal - facet normal
234 * \param [out] theFacets - the hexahedra and found facet IDs
236 void GetHexaFacetsToSplit( TIDSortedElemSet& theHexas,
237 const gp_Ax1& theFacetNormal,
238 TFacetOfElem & theFacets);
241 * \brief Split bi-quadratic elements into linear ones without creation of additional nodes
242 * - bi-quadratic triangle will be split into 3 linear quadrangles;
243 * - bi-quadratic quadrangle will be split into 4 linear quadrangles;
244 * - tri-quadratic hexahedron will be split into 8 linear hexahedra;
245 * Quadratic elements of lower dimension adjacent to the split bi-quadratic element
246 * will be split in order to keep the mesh conformal.
247 * \param elems - elements to split
249 void SplitBiQuadraticIntoLinear(TIDSortedElemSet& theElems);
251 enum SmoothMethod { LAPLACIAN = 0, CENTROIDAL };
253 void Smooth (TIDSortedElemSet & theElements,
254 std::set<const SMDS_MeshNode*> & theFixedNodes,
255 const SmoothMethod theSmoothMethod,
256 const int theNbIterations,
257 double theTgtAspectRatio = 1.0,
258 const bool the2D = true);
259 // Smooth theElements using theSmoothMethod during theNbIterations
260 // or until a worst element has aspect ratio <= theTgtAspectRatio.
261 // Aspect Ratio varies in range [1.0, inf].
262 // If theElements is empty, the whole mesh is smoothed.
263 // theFixedNodes contains additionally fixed nodes. Nodes built
264 // on edges and boundary nodes are always fixed.
265 // If the2D, smoothing is performed using UV parameters of nodes
266 // on geometrical faces
268 typedef TIDTypeCompare TElemSort;
269 typedef std::map < const SMDS_MeshElement*,
270 std::list<const SMDS_MeshElement*>, TElemSort > TTElemOfElemListMap;
271 typedef std::map<const SMDS_MeshNode*, std::list<const SMDS_MeshNode*> > TNodeOfNodeListMap;
272 typedef TNodeOfNodeListMap::iterator TNodeOfNodeListMapItr;
273 typedef std::vector<TNodeOfNodeListMapItr> TVecOfNnlmiMap;
274 typedef std::map<const SMDS_MeshElement*, TVecOfNnlmiMap, TElemSort > TElemOfVecOfNnlmiMap;
275 typedef std::auto_ptr< std::list<int> > PGroupIDs;
277 PGroupIDs RotationSweep (TIDSortedElemSet theElements[2],
278 const gp_Ax1& theAxis,
279 const double theAngle,
280 const int theNbSteps,
281 const double theToler,
282 const bool theMakeGroups,
283 const bool theMakeWalls=true);
284 // Generate new elements by rotation of theElements around theAxis
285 // by theAngle by theNbSteps
288 * Flags of extrusion.
289 * BOUNDARY: create or not boundary for result of extrusion
290 * SEW: try to use existing nodes or create new nodes in any case
291 * GROUPS: to create groups
292 * BY_AVG_NORMAL: step size is measured along average normal to elements,
293 * else step size is measured along average normal of any element
294 * USE_INPUT_ELEMS_ONLY: to use only input elements to compute extrusion direction
295 * for ExtrusionByNormal()
296 * SCALE_LINEAR_VARIATION: to make linear variation of scale factors
298 enum ExtrusionFlags {
299 EXTRUSION_FLAG_BOUNDARY = 0x01,
300 EXTRUSION_FLAG_SEW = 0x02,
301 EXTRUSION_FLAG_GROUPS = 0x04,
302 EXTRUSION_FLAG_BY_AVG_NORMAL = 0x08,
303 EXTRUSION_FLAG_USE_INPUT_ELEMS_ONLY = 0x10,
304 EXTRUSION_FLAG_SCALE_LINEAR_VARIATION = 0x20
308 * Generator of nodes for extrusion functionality
310 class SMESH_EXPORT ExtrusParam
312 gp_Dir myDir; // direction of extrusion
313 Handle(TColStd_HSequenceOfReal) mySteps; // magnitudes for each step
314 std::vector<double> myScales, myMediumScales;// scale factors
315 gp_XYZ myBaseP; // scaling center
316 SMESH_SequenceOfNode myNodes; // nodes for using in sewing
317 int myFlags; // see ExtrusionFlags
318 double myTolerance; // tolerance for sewing nodes
319 const TIDSortedElemSet* myElemsToUse; // elements to use for extrusion by normal
321 int (ExtrusParam::*myMakeNodesFun)(SMESHDS_Mesh* mesh,
322 const SMDS_MeshNode* srcNode,
323 std::list<const SMDS_MeshNode*> & newNodes,
324 const bool makeMediumNodes);
327 ExtrusParam( const gp_Vec& theStep,
328 const int theNbSteps,
329 const std::list<double>& theScales,
330 const gp_XYZ* theBaseP,
331 const int theFlags = 0,
332 const double theTolerance = 1e-6);
333 ExtrusParam( const gp_Dir& theDir,
334 Handle(TColStd_HSequenceOfReal) theSteps,
335 const int theFlags = 0,
336 const double theTolerance = 1e-6);
337 ExtrusParam( const double theStep,
338 const int theNbSteps,
340 const int theDim); // for extrusion by normal
342 SMESH_SequenceOfNode& ChangeNodes() { return myNodes; }
343 int& Flags() { return myFlags; }
344 bool ToMakeBoundary() const { return myFlags & EXTRUSION_FLAG_BOUNDARY; }
345 bool ToMakeGroups() const { return myFlags & EXTRUSION_FLAG_GROUPS; }
346 bool ToUseInpElemsOnly() const { return myFlags & EXTRUSION_FLAG_USE_INPUT_ELEMS_ONLY; }
347 bool IsLinearVariation() const { return myFlags & EXTRUSION_FLAG_SCALE_LINEAR_VARIATION; }
348 int NbSteps() const { return mySteps->Length(); }
350 // stores elements to use for extrusion by normal, depending on
351 // state of EXTRUSION_FLAG_USE_INPUT_ELEMS_ONLY flag;
352 // define myBaseP for scaling
353 void SetElementsToUse( const TIDSortedElemSet& elems, const TIDSortedElemSet& nodes );
355 // creates nodes and returns number of nodes added in \a newNodes
356 int MakeNodes( SMESHDS_Mesh* mesh,
357 const SMDS_MeshNode* srcNode,
358 std::list<const SMDS_MeshNode*> & newNodes,
359 const bool makeMediumNodes)
361 return (this->*myMakeNodesFun)( mesh, srcNode, newNodes, makeMediumNodes );
365 int makeNodesByDir( SMESHDS_Mesh* mesh,
366 const SMDS_MeshNode* srcNode,
367 std::list<const SMDS_MeshNode*> & newNodes,
368 const bool makeMediumNodes);
369 int makeNodesByDirAndSew( SMESHDS_Mesh* mesh,
370 const SMDS_MeshNode* srcNode,
371 std::list<const SMDS_MeshNode*> & newNodes,
372 const bool makeMediumNodes);
373 int makeNodesByNormal2D( SMESHDS_Mesh* mesh,
374 const SMDS_MeshNode* srcNode,
375 std::list<const SMDS_MeshNode*> & newNodes,
376 const bool makeMediumNodes);
377 int makeNodesByNormal1D( SMESHDS_Mesh* mesh,
378 const SMDS_MeshNode* srcNode,
379 std::list<const SMDS_MeshNode*> & newNodes,
380 const bool makeMediumNodes);
382 void beginStepIter( bool withMediumNodes );
385 std::vector< double > myCurSteps;
386 bool myWithMediumNodes;
391 * Generate new elements by extrusion of theElements
392 * It is a method used in .idl file. All functionality
393 * is implemented in the next method (see below) which
394 * is used in the current method.
395 * @param theElems - list of elements for extrusion
396 * @param newElemsMap returns history of extrusion
397 * @param theFlags set flags for performing extrusion (see description
398 * of enum ExtrusionFlags for additional information)
399 * @param theTolerance - uses for comparing locations of nodes if flag
400 * EXTRUSION_FLAG_SEW is set
402 PGroupIDs ExtrusionSweep (TIDSortedElemSet theElems[2],
403 const gp_Vec& theStep,
404 const int theNbSteps,
405 TTElemOfElemListMap& newElemsMap,
407 const double theTolerance = 1.e-6);
410 * Generate new elements by extrusion of theElements
411 * @param theElems - list of elements for extrusion
412 * @param newElemsMap returns history of extrusion
413 * @param theFlags set flags for performing extrusion (see description
414 * of enum ExtrusionFlags for additional information)
415 * @param theTolerance - uses for comparing locations of nodes if flag
416 * EXTRUSION_FLAG_SEW is set
417 * @param theParams - special structure for manage of extrusion
419 PGroupIDs ExtrusionSweep (TIDSortedElemSet theElems[2],
420 ExtrusParam& theParams,
421 TTElemOfElemListMap& newElemsMap);
424 // Generate new elements by extrusion of theElements
425 // by theStep by theNbSteps
427 enum Extrusion_Error {
432 EXTR_BAD_STARTING_NODE,
433 EXTR_BAD_ANGLES_NUMBER,
434 EXTR_CANT_GET_TANGENT
437 Extrusion_Error ExtrusionAlongTrack (TIDSortedElemSet theElements[2],
438 SMESH_subMesh* theTrackPattern,
439 const SMDS_MeshNode* theNodeStart,
440 const bool theHasAngles,
441 std::list<double>& theAngles,
442 const bool theLinearVariation,
443 const bool theHasRefPoint,
444 const gp_Pnt& theRefPoint,
445 const bool theMakeGroups);
446 Extrusion_Error ExtrusionAlongTrack (TIDSortedElemSet theElements[2],
447 SMESH_Mesh* theTrackPattern,
448 const SMDS_MeshNode* theNodeStart,
449 const bool theHasAngles,
450 std::list<double>& theAngles,
451 const bool theLinearVariation,
452 const bool theHasRefPoint,
453 const gp_Pnt& theRefPoint,
454 const bool theMakeGroups);
455 // Generate new elements by extrusion of theElements along path given by theTrackPattern,
456 // theHasAngles are the rotation angles, base point can be given by theRefPoint
458 PGroupIDs Transform (TIDSortedElemSet & theElements,
459 const gp_Trsf& theTrsf,
461 const bool theMakeGroups,
462 SMESH_Mesh* theTargetMesh=0);
463 // Move or copy theElements applying theTrsf to their nodes
465 typedef std::list< std::list< const SMDS_MeshNode* > > TListOfListOfNodes;
467 void FindCoincidentNodes (TIDSortedNodeSet & theNodes,
468 const double theTolerance,
469 TListOfListOfNodes & theGroupsOfNodes,
470 bool theSeparateCornersAndMedium);
471 // Return list of group of nodes close to each other within theTolerance.
472 // Search among theNodes or in the whole mesh if theNodes is empty.
474 void MergeNodes (TListOfListOfNodes & theNodeGroups);
475 // In each group, the cdr of nodes are substituted by the first one
478 typedef std::list< std::list< int > > TListOfListOfElementsID;
480 void FindEqualElements(TIDSortedElemSet & theElements,
481 TListOfListOfElementsID & theGroupsOfElementsID);
482 // Return list of group of elements build on the same nodes.
483 // Search among theElements or in the whole mesh if theElements is empty.
485 void MergeElements(TListOfListOfElementsID & theGroupsOfElementsID);
486 // In each group remove all but first of elements.
488 void MergeEqualElements();
489 // Remove all but one of elements built on the same nodes.
490 // Return nb of successfully merged groups.
492 int SimplifyFace (const std::vector<const SMDS_MeshNode *>& faceNodes,
493 std::vector<const SMDS_MeshNode *>& poly_nodes,
494 std::vector<int>& quantities) const;
495 // Split face, defined by <faceNodes>, into several faces by repeating nodes.
496 // Is used by MergeNodes()
498 static bool CheckFreeBorderNodes(const SMDS_MeshNode* theNode1,
499 const SMDS_MeshNode* theNode2,
500 const SMDS_MeshNode* theNode3 = 0);
501 // Return true if the three nodes are on a free border
503 static bool FindFreeBorder (const SMDS_MeshNode* theFirstNode,
504 const SMDS_MeshNode* theSecondNode,
505 const SMDS_MeshNode* theLastNode,
506 std::list< const SMDS_MeshNode* > & theNodes,
507 std::list< const SMDS_MeshElement* >& theFaces);
508 // Return nodes and faces of a free border if found
512 // for SewFreeBorder()
513 SEW_BORDER1_NOT_FOUND,
514 SEW_BORDER2_NOT_FOUND,
515 SEW_BOTH_BORDERS_NOT_FOUND,
517 SEW_VOLUMES_TO_SPLIT,
518 // for SewSideElements()
519 SEW_DIFF_NB_OF_ELEMENTS,
520 SEW_TOPO_DIFF_SETS_OF_ELEMENTS,
527 Sew_Error SewFreeBorder (const SMDS_MeshNode* theBorderFirstNode,
528 const SMDS_MeshNode* theBorderSecondNode,
529 const SMDS_MeshNode* theBorderLastNode,
530 const SMDS_MeshNode* theSide2FirstNode,
531 const SMDS_MeshNode* theSide2SecondNode,
532 const SMDS_MeshNode* theSide2ThirdNode = 0,
533 const bool theSide2IsFreeBorder = true,
534 const bool toCreatePolygons = false,
535 const bool toCreatePolyedrs = false);
536 // Sew the free border to the side2 by replacing nodes in
537 // elements on the free border with nodes of the elements
538 // of the side 2. If nb of links in the free border and
539 // between theSide2FirstNode and theSide2LastNode are different,
540 // additional nodes are inserted on a link provided that no
541 // volume elements share the splitted link.
542 // The side 2 is a free border if theSide2IsFreeBorder == true.
543 // Sewing is peformed between the given first, second and last
544 // nodes on the sides.
545 // theBorderFirstNode is merged with theSide2FirstNode.
546 // if (!theSide2IsFreeBorder) then theSide2SecondNode gives
547 // the last node on the side 2, which will be merged with
548 // theBorderLastNode.
549 // if (theSide2IsFreeBorder) then theSide2SecondNode will
550 // be merged with theBorderSecondNode.
551 // if (theSide2IsFreeBorder && theSide2ThirdNode == 0) then
552 // the 2 free borders are sewn link by link and no additional
553 // nodes are inserted.
554 // Return false, if sewing failed.
556 Sew_Error SewSideElements (TIDSortedElemSet& theSide1,
557 TIDSortedElemSet& theSide2,
558 const SMDS_MeshNode* theFirstNode1ToMerge,
559 const SMDS_MeshNode* theFirstNode2ToMerge,
560 const SMDS_MeshNode* theSecondNode1ToMerge,
561 const SMDS_MeshNode* theSecondNode2ToMerge);
562 // Sew two sides of a mesh. Nodes belonging to theSide1 are
563 // merged with nodes of elements of theSide2.
564 // Number of elements in theSide1 and in theSide2 must be
565 // equal and they should have similar node connectivity.
566 // The nodes to merge should belong to side s borders and
567 // the first node should be linked to the second.
569 void InsertNodesIntoLink(const SMDS_MeshElement* theFace,
570 const SMDS_MeshNode* theBetweenNode1,
571 const SMDS_MeshNode* theBetweenNode2,
572 std::list<const SMDS_MeshNode*>& theNodesToInsert,
573 const bool toCreatePoly = false);
574 // insert theNodesToInsert into theFace between theBetweenNode1 and theBetweenNode2.
575 // If toCreatePoly is true, replace theFace by polygon, else split theFace.
577 void UpdateVolumes (const SMDS_MeshNode* theBetweenNode1,
578 const SMDS_MeshNode* theBetweenNode2,
579 std::list<const SMDS_MeshNode*>& theNodesToInsert);
580 // insert theNodesToInsert into all volumes, containing link
581 // theBetweenNode1 - theBetweenNode2, between theBetweenNode1 and theBetweenNode2.
583 void ConvertToQuadratic(const bool theForce3d, const bool theToBiQuad);
584 void ConvertToQuadratic(const bool theForce3d,
585 TIDSortedElemSet& theElements, const bool theToBiQuad);
586 // Converts all mesh to quadratic or bi-quadratic one, deletes old elements,
587 // replacing them with quadratic or bi-quadratic ones with the same id.
588 // If theForce3d = 1; this results in the medium node lying at the
589 // middle of the line segments connecting start and end node of a mesh element.
590 // If theForce3d = 0; this results in the medium node lying at the
591 // geometrical edge from which the mesh element is built.
593 bool ConvertFromQuadratic();
594 void ConvertFromQuadratic(TIDSortedElemSet& theElements);
595 // Converts all mesh from quadratic to ordinary ones, deletes old quadratic elements, replacing
596 // them with ordinary mesh elements with the same id.
597 // Returns true in case of success, false otherwise.
599 static void AddToSameGroups (const SMDS_MeshElement* elemToAdd,
600 const SMDS_MeshElement* elemInGroups,
601 SMESHDS_Mesh * aMesh);
602 // Add elemToAdd to the all groups the elemInGroups belongs to
604 static void RemoveElemFromGroups (const SMDS_MeshElement* element,
605 SMESHDS_Mesh * aMesh);
606 // remove element from the all groups
608 static void ReplaceElemInGroups (const SMDS_MeshElement* elemToRm,
609 const SMDS_MeshElement* elemToAdd,
610 SMESHDS_Mesh * aMesh);
611 // replace elemToRm by elemToAdd in the all groups
613 static void ReplaceElemInGroups (const SMDS_MeshElement* elemToRm,
614 const std::vector<const SMDS_MeshElement*>& elemToAdd,
615 SMESHDS_Mesh * aMesh);
616 // replace elemToRm by elemToAdd in the all groups
619 * \brief Return nodes linked to the given one in elements of the type
621 static void GetLinkedNodes( const SMDS_MeshNode* node,
622 TIDSortedElemSet & linkedNodes,
623 SMDSAbs_ElementType type = SMDSAbs_All );
626 * \brief Find corresponding nodes in two sets of faces
627 * \param theSide1 - first face set
628 * \param theSide2 - second first face
629 * \param theFirstNode1 - a boundary node of set 1
630 * \param theFirstNode2 - a node of set 2 corresponding to theFirstNode1
631 * \param theSecondNode1 - a boundary node of set 1 linked with theFirstNode1
632 * \param theSecondNode2 - a node of set 2 corresponding to theSecondNode1
633 * \param nReplaceMap - output map of corresponding nodes
634 * \return Sew_Error - is a success or not
636 static Sew_Error FindMatchingNodes(std::set<const SMDS_MeshElement*>& theSide1,
637 std::set<const SMDS_MeshElement*>& theSide2,
638 const SMDS_MeshNode* theFirstNode1,
639 const SMDS_MeshNode* theFirstNode2,
640 const SMDS_MeshNode* theSecondNode1,
641 const SMDS_MeshNode* theSecondNode2,
642 TNodeNodeMap & theNodeReplaceMap);
645 * \brief Returns true if given node is medium
646 * \param n - node to check
647 * \param typeToCheck - type of elements containing the node to ask about node status
648 * \return bool - check result
650 static bool IsMedium(const SMDS_MeshNode* node,
651 const SMDSAbs_ElementType typeToCheck = SMDSAbs_All);
653 int FindShape (const SMDS_MeshElement * theElem);
654 // Return an index of the shape theElem is on
655 // or zero if a shape not found
657 void DoubleElements( const TIDSortedElemSet& theElements );
659 bool DoubleNodes( const std::list< int >& theListOfNodes,
660 const std::list< int >& theListOfModifiedElems );
662 bool DoubleNodes( const TIDSortedElemSet& theElems,
663 const TIDSortedElemSet& theNodesNot,
664 const TIDSortedElemSet& theAffectedElems );
666 bool AffectedElemGroupsInRegion( const TIDSortedElemSet& theElems,
667 const TIDSortedElemSet& theNodesNot,
668 const TopoDS_Shape& theShape,
669 TIDSortedElemSet& theAffectedElems);
671 bool DoubleNodesInRegion( const TIDSortedElemSet& theElems,
672 const TIDSortedElemSet& theNodesNot,
673 const TopoDS_Shape& theShape );
675 double OrientedAngle(const gp_Pnt& p0, const gp_Pnt& p1, const gp_Pnt& g1, const gp_Pnt& g2);
677 bool DoubleNodesOnGroupBoundaries( const std::vector<TIDSortedElemSet>& theElems,
678 bool createJointElems,
679 bool onAllBoundaries);
681 bool CreateFlatElementsOnFacesGroups( const std::vector<TIDSortedElemSet>& theElems );
683 void CreateHoleSkin(double radius,
684 const TopoDS_Shape& theShape,
685 SMESH_NodeSearcher* theNodeSearcher,
686 const char* groupName,
687 std::vector<double>& nodesCoords,
688 std::vector<std::vector<int> >& listOfListOfNodes);
691 * \brief Generated skin mesh (containing 2D cells) from 3D mesh
692 * The created 2D mesh elements based on nodes of free faces of boundary volumes
693 * \return TRUE if operation has been completed successfully, FALSE otherwise
695 bool Make2DMeshFrom3D();
697 enum Bnd_Dimension { BND_2DFROM3D, BND_1DFROM3D, BND_1DFROM2D };
699 int MakeBoundaryMesh(const TIDSortedElemSet& elements,
700 Bnd_Dimension dimension,
701 SMESH_Group* group = 0,
702 SMESH_Mesh* targetMesh = 0,
703 bool toCopyElements = false,
704 bool toCopyExistingBondary = false,
705 bool toAddExistingBondary = false,
706 bool aroundElements = false);
711 * \brief Convert elements contained in a submesh to quadratic
712 * \return int - nb of checked elements
714 int convertElemToQuadratic(SMESHDS_SubMesh * theSm,
715 SMESH_MesherHelper& theHelper,
716 const bool theForce3d);
719 * \brief Convert quadratic elements to linear ones and remove quadratic nodes
720 * \return nb of checked elements
722 int removeQuadElem( SMESHDS_SubMesh * theSm,
723 SMDS_ElemIteratorPtr theItr,
724 const int theShapeID);
726 * \brief Create groups of elements made during transformation
727 * \param nodeGens - nodes making corresponding myLastCreatedNodes
728 * \param elemGens - elements making corresponding myLastCreatedElems
729 * \param postfix - to append to names of new groups
730 * \param targetMesh - mesh to create groups in
731 * \param topPresent - is there "top" elements that are created by sweeping
733 PGroupIDs generateGroups(const SMESH_SequenceOfElemPtr& nodeGens,
734 const SMESH_SequenceOfElemPtr& elemGens,
735 const std::string& postfix,
736 SMESH_Mesh* targetMesh=0,
737 const bool topPresent=true);
739 * \brief Create elements by sweeping an element
740 * \param elem - element to sweep
741 * \param newNodesItVec - nodes generated from each node of the element
742 * \param newElems - generated elements
743 * \param nbSteps - number of sweeping steps
744 * \param srcElements - to append elem for each generated element
746 void sweepElement(const SMDS_MeshElement* elem,
747 const std::vector<TNodeOfNodeListMapItr> & newNodesItVec,
748 std::list<const SMDS_MeshElement*>& newElems,
749 const size_t nbSteps,
750 SMESH_SequenceOfElemPtr& srcElements);
753 * \brief Create 1D and 2D elements around swept elements
754 * \param mapNewNodes - source nodes and ones generated from them
755 * \param newElemsMap - source elements and ones generated from them
756 * \param elemNewNodesMap - nodes generated from each node of each element
757 * \param elemSet - all swept elements
758 * \param nbSteps - number of sweeping steps
759 * \param srcElements - to append elem for each generated element
761 void makeWalls (TNodeOfNodeListMap & mapNewNodes,
762 TTElemOfElemListMap & newElemsMap,
763 TElemOfVecOfNnlmiMap & elemNewNodesMap,
764 TIDSortedElemSet& elemSet,
766 SMESH_SequenceOfElemPtr& srcElements);
768 struct SMESH_MeshEditor_PathPoint
772 double myAngle, myPrm;
774 SMESH_MeshEditor_PathPoint(): myPnt(99., 99., 99.), myTgt(1.,0.,0.), myAngle(0), myPrm(0) {}
775 void SetPnt (const gp_Pnt& aP3D) { myPnt =aP3D; }
776 void SetTangent (const gp_Dir& aTgt) { myTgt =aTgt; }
777 void SetAngle (const double& aBeta) { myAngle=aBeta; }
778 void SetParameter(const double& aPrm) { myPrm =aPrm; }
779 const gp_Pnt& Pnt ()const { return myPnt; }
780 const gp_Dir& Tangent ()const { return myTgt; }
781 double Angle ()const { return myAngle; }
782 double Parameter ()const { return myPrm; }
784 Extrusion_Error MakeEdgePathPoints(std::list<double>& aPrms,
785 const TopoDS_Edge& aTrackEdge,
787 std::list<SMESH_MeshEditor_PathPoint>& aLPP);
788 Extrusion_Error MakeExtrElements(TIDSortedElemSet theElements[2],
789 std::list<SMESH_MeshEditor_PathPoint>& theFullList,
790 const bool theHasAngles,
791 std::list<double>& theAngles,
792 const bool theLinearVariation,
793 const bool theHasRefPoint,
794 const gp_Pnt& theRefPoint,
795 const bool theMakeGroups);
796 static void LinearAngleVariation(const int NbSteps,
797 std::list<double>& theAngles);
799 bool doubleNodes( SMESHDS_Mesh* theMeshDS,
800 const TIDSortedElemSet& theElems,
801 const TIDSortedElemSet& theNodesNot,
802 TNodeNodeMap& theNodeNodeMap,
803 const bool theIsDoubleElem );
805 void copyPosition( const SMDS_MeshNode* from,
806 const SMDS_MeshNode* to );
812 // Nodes and elements created during last operation
813 SMESH_SequenceOfElemPtr myLastCreatedNodes, myLastCreatedElems;
815 // Description of error/warning occured during last operation
816 SMESH_ComputeErrorPtr myError;