1 // Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
2 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
4 // This library is free software; you can redistribute it and/or
5 // modify it under the terms of the GNU Lesser General Public
6 // License as published by the Free Software Foundation; either
7 // version 2.1 of the License.
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // Lesser General Public License for more details.
14 // You should have received a copy of the GNU Lesser General Public
15 // License along with this library; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 // File : SMESH_Pattern.hxx
21 // Created : Mon Aug 2 10:30:00 2004
22 // Author : Edward AGAPOV (eap)
26 #include "SMESH_Pattern.hxx"
28 #include <BRepAdaptor_Curve.hxx>
29 #include <BRepTools.hxx>
30 #include <BRepTools_WireExplorer.hxx>
31 #include <BRep_Tool.hxx>
32 #include <Bnd_Box.hxx>
33 #include <Bnd_Box2d.hxx>
35 #include <Extrema_ExtPC.hxx>
36 #include <Extrema_GenExtPS.hxx>
37 #include <Extrema_POnSurf.hxx>
38 #include <Geom2d_Curve.hxx>
39 #include <GeomAdaptor_Surface.hxx>
40 #include <Geom_Curve.hxx>
41 #include <Geom_Surface.hxx>
42 #include <TopAbs_ShapeEnum.hxx>
44 #include <TopExp_Explorer.hxx>
45 #include <TopLoc_Location.hxx>
46 #include <TopTools_ListIteratorOfListOfShape.hxx>
48 #include <TopoDS_Edge.hxx>
49 #include <TopoDS_Face.hxx>
50 #include <TopoDS_Iterator.hxx>
51 #include <TopoDS_Shell.hxx>
52 #include <TopoDS_Vertex.hxx>
53 #include <TopoDS_Wire.hxx>
55 #include <gp_Lin2d.hxx>
56 #include <gp_Pnt2d.hxx>
57 #include <gp_Trsf.hxx>
61 #include "SMDS_EdgePosition.hxx"
62 #include "SMDS_FacePosition.hxx"
63 #include "SMDS_MeshElement.hxx"
64 #include "SMDS_MeshFace.hxx"
65 #include "SMDS_MeshNode.hxx"
66 #include "SMDS_VolumeTool.hxx"
67 #include "SMESHDS_Group.hxx"
68 #include "SMESHDS_Mesh.hxx"
69 #include "SMESHDS_SubMesh.hxx"
70 #include "SMESH_Block.hxx"
71 #include "SMESH_Mesh.hxx"
72 #include "SMESH_MeshEditor.hxx"
73 #include "SMESH_subMesh.hxx"
75 #include "utilities.h"
79 typedef map< const SMDS_MeshElement*, int > TNodePointIDMap;
81 #define smdsNode( elem ) static_cast<const SMDS_MeshNode*>( elem )
83 //=======================================================================
84 //function : SMESH_Pattern
86 //=======================================================================
88 SMESH_Pattern::SMESH_Pattern ()
91 //=======================================================================
94 //=======================================================================
96 static inline int getInt( const char * theSring )
98 if ( *theSring < '0' || *theSring > '9' )
102 int val = strtol( theSring, &ptr, 10 );
103 if ( ptr == theSring ||
104 // there must not be neither '.' nor ',' nor 'E' ...
105 (*ptr != ' ' && *ptr != '\n' && *ptr != '\0'))
111 //=======================================================================
112 //function : getDouble
114 //=======================================================================
116 static inline double getDouble( const char * theSring )
119 return strtod( theSring, &ptr );
122 //=======================================================================
123 //function : readLine
124 //purpose : Put token starting positions in theFields until '\n' or '\0'
125 // Return the number of the found tokens
126 //=======================================================================
128 static int readLine (list <const char*> & theFields,
129 const char* & theLineBeg,
130 const bool theClearFields )
132 if ( theClearFields )
137 /* switch ( symbol ) { */
138 /* case white-space: */
139 /* look for a non-space symbol; */
140 /* case string-end: */
143 /* case comment beginning: */
144 /* skip all till a line-end; */
146 /* put its position in theFields, skip till a white-space;*/
152 bool stopReading = false;
155 bool isNumber = false;
156 switch ( *theLineBeg )
158 case ' ': // white space
163 case '\n': // a line ends
164 stopReading = ( nbRead > 0 );
169 while ( *theLineBeg != '\n' && *theLineBeg != '\0' );
173 case '\0': // file ends
176 case '-': // real number
181 isNumber = isNumber || ( *theLineBeg >= '0' && *theLineBeg <= '9' );
183 theFields.push_back( theLineBeg );
186 while (*theLineBeg != ' ' &&
187 *theLineBeg != '\n' &&
188 *theLineBeg != '\0');
192 return 0; // incorrect file format
198 } while ( !stopReading );
203 //=======================================================================
205 //purpose : Load a pattern from <theFile>
206 //=======================================================================
208 bool SMESH_Pattern::Load (const char* theFileContents)
210 MESSAGE("Load( file ) ");
214 // ! This is a comment
215 // NB_POINTS ! 1 integer - the number of points in the pattern.
216 // X1 Y1 [Z1] ! 2 or 3 reals - nodes coordinates within 2D or 3D domain:
217 // X2 Y2 [Z2] ! the pattern dimention is defined by the number of coordinates
219 // [ ID1 ID2 ... IDn ] ! Indices of key-points for a 2D pattern (only).
220 // ! elements description goes after all
221 // ID1 ID2 ... IDn ! 2-4 or 4-8 integers - nodal connectivity of a 2D or 3D element.
226 const char* lineBeg = theFileContents;
227 list <const char*> fields;
228 const bool clearFields = true;
230 // NB_POINTS ! 1 integer - the number of points in the pattern.
232 if ( readLine( fields, lineBeg, clearFields ) != 1 ) {
233 MESSAGE("Error reading NB_POINTS");
234 return setErrorCode( ERR_READ_NB_POINTS );
236 int nbPoints = getInt( fields.front() );
238 // X1 Y1 [Z1] ! 2 or 3 reals - nodes coordinates within 2D or 3D domain:
240 // read the first point coordinates to define pattern dimention
241 int dim = readLine( fields, lineBeg, clearFields );
247 MESSAGE("Error reading points: wrong nb of coordinates");
248 return setErrorCode( ERR_READ_POINT_COORDS );
250 if ( nbPoints <= dim ) {
251 MESSAGE(" Too few points ");
252 return setErrorCode( ERR_READ_TOO_FEW_POINTS );
255 // read the rest points
257 for ( iPoint = 1; iPoint < nbPoints; iPoint++ )
258 if ( readLine( fields, lineBeg, !clearFields ) != dim ) {
259 MESSAGE("Error reading points : wrong nb of coordinates ");
260 return setErrorCode( ERR_READ_POINT_COORDS );
262 // store point coordinates
263 myPoints.resize( nbPoints );
264 list <const char*>::iterator fIt = fields.begin();
265 for ( iPoint = 0; iPoint < nbPoints; iPoint++ )
267 TPoint & p = myPoints[ iPoint ];
268 for ( int iCoord = 1; iCoord <= dim; iCoord++, fIt++ )
270 double coord = getDouble( *fIt );
271 if ( !myIs2D && ( coord < 0.0 || coord > 1.0 )) {
272 MESSAGE("Error reading 3D points, value should be in [0,1]: " << coord);
274 return setErrorCode( ERR_READ_3D_COORD );
276 p.myInitXYZ.SetCoord( iCoord, coord );
278 p.myInitUV.SetCoord( iCoord, coord );
282 // [ ID1 ID2 ... IDn ] ! Indices of key-points for a 2D pattern (only).
285 if ( readLine( fields, lineBeg, clearFields ) == 0 ) {
286 MESSAGE("Error: missing key-points");
288 return setErrorCode( ERR_READ_NO_KEYPOINT );
291 for ( fIt = fields.begin(); fIt != fields.end(); fIt++ )
293 int pointIndex = getInt( *fIt );
294 if ( pointIndex >= nbPoints || pointIndex < 0 ) {
295 MESSAGE("Error: invalid point index " << pointIndex );
297 return setErrorCode( ERR_READ_BAD_INDEX );
299 if ( idSet.insert( pointIndex ).second ) // unique?
300 myKeyPointIDs.push_back( pointIndex );
304 // ID1 ID2 ... IDn ! 2-4 or 4-8 integers - nodal connectivity of a 2D or 3D element.
306 while ( readLine( fields, lineBeg, clearFields ))
308 myElemPointIDs.push_back( TElemDef() );
309 TElemDef& elemPoints = myElemPointIDs.back();
310 for ( fIt = fields.begin(); fIt != fields.end(); fIt++ )
312 int pointIndex = getInt( *fIt );
313 if ( pointIndex >= nbPoints || pointIndex < 0 ) {
314 MESSAGE("Error: invalid point index " << pointIndex );
316 return setErrorCode( ERR_READ_BAD_INDEX );
318 elemPoints.push_back( pointIndex );
320 // check the nb of nodes in element
322 switch ( elemPoints.size() ) {
323 case 3: if ( !myIs2D ) Ok = false; break;
327 case 8: if ( myIs2D ) Ok = false; break;
331 MESSAGE("Error: wrong nb of nodes in element " << elemPoints.size() );
333 return setErrorCode( ERR_READ_ELEM_POINTS );
336 if ( myElemPointIDs.empty() ) {
337 MESSAGE("Error: no elements");
339 return setErrorCode( ERR_READ_NO_ELEMS );
342 findBoundaryPoints(); // sort key-points
344 return setErrorCode( ERR_OK );
347 //=======================================================================
349 //purpose : Save the loaded pattern into the file <theFileName>
350 //=======================================================================
352 bool SMESH_Pattern::Save (ostream& theFile)
354 MESSAGE(" ::Save(file) " );
356 MESSAGE(" Pattern not loaded ");
357 return setErrorCode( ERR_SAVE_NOT_LOADED );
360 theFile << "!!! SALOME Mesh Pattern file" << endl;
361 theFile << "!!!" << endl;
362 theFile << "!!! Nb of points:" << endl;
363 theFile << myPoints.size() << endl;
367 // theFile.width( 8 );
368 // theFile.setf(ios::fixed);// use 123.45 floating notation
369 // theFile.setf(ios::right);
370 // theFile.flags( theFile.flags() & ~ios::showpoint); // do not show trailing zeros
371 // theFile.setf(ios::showpoint); // do not show trailing zeros
372 vector< TPoint >::const_iterator pVecIt = myPoints.begin();
373 for ( int i = 0; pVecIt != myPoints.end(); pVecIt++, i++ ) {
374 const gp_XYZ & xyz = (*pVecIt).myInitXYZ;
375 theFile << " " << setw( width ) << xyz.X() << " " << setw( width ) << xyz.Y();
376 if ( !myIs2D ) theFile << " " << setw( width ) << xyz.Z();
377 theFile << " !- " << i << endl; // point id to ease reading by a human being
381 theFile << "!!! Indices of " << myKeyPointIDs.size() << " key-points:" << endl;
382 list< int >::const_iterator kpIt = myKeyPointIDs.begin();
383 for ( ; kpIt != myKeyPointIDs.end(); kpIt++ )
384 theFile << " " << *kpIt;
385 if ( !myKeyPointIDs.empty() )
389 theFile << "!!! Indices of points of " << myElemPointIDs.size() << " elements:" << endl;
390 list<TElemDef >::const_iterator epIt = myElemPointIDs.begin();
391 for ( ; epIt != myElemPointIDs.end(); epIt++ )
393 const TElemDef & elemPoints = *epIt;
394 TElemDef::const_iterator iIt = elemPoints.begin();
395 for ( ; iIt != elemPoints.end(); iIt++ )
396 theFile << " " << *iIt;
402 return setErrorCode( ERR_OK );
405 //=======================================================================
406 //function : sortBySize
407 //purpose : sort theListOfList by size
408 //=======================================================================
410 template<typename T> struct TSizeCmp {
411 bool operator ()( const list < T > & l1, const list < T > & l2 )
412 const { return l1.size() < l2.size(); }
415 template<typename T> void sortBySize( list< list < T > > & theListOfList )
417 if ( theListOfList.size() > 2 ) {
418 TSizeCmp< T > SizeCmp;
419 theListOfList.sort( SizeCmp );
423 //=======================================================================
426 //=======================================================================
428 static gp_XY project (const SMDS_MeshNode* theNode,
429 Extrema_GenExtPS & theProjectorPS)
431 gp_Pnt P( theNode->X(), theNode->Y(), theNode->Z() );
432 theProjectorPS.Perform( P );
433 if ( !theProjectorPS.IsDone() ) {
434 MESSAGE( "SMESH_Pattern: point projection FAILED");
437 double u, v, minVal = DBL_MAX;
438 for ( int i = theProjectorPS.NbExt(); i > 0; i-- )
439 if ( theProjectorPS.Value( i ) < minVal ) {
440 minVal = theProjectorPS.Value( i );
441 theProjectorPS.Point( i ).Parameter( u, v );
443 return gp_XY( u, v );
446 //=======================================================================
447 //function : areNodesBound
448 //purpose : true if all nodes of faces are bound to shapes
449 //=======================================================================
451 template <class TFaceIterator> bool areNodesBound( TFaceIterator & faceItr )
453 while ( faceItr->more() )
455 SMDS_ElemIteratorPtr nIt = faceItr->next()->nodesIterator();
456 while ( nIt->more() )
458 const SMDS_MeshNode* node = smdsNode( nIt->next() );
459 SMDS_PositionPtr pos = node->GetPosition();
460 if ( !pos || !pos->GetShapeId() ) {
468 //=======================================================================
469 //function : isMeshBoundToShape
470 //purpose : return true if all 2d elements are bound to shape
471 // if aFaceSubmesh != NULL, then check faces bound to it
472 // else check all faces in aMeshDS
473 //=======================================================================
475 static bool isMeshBoundToShape(SMESHDS_Mesh * aMeshDS,
476 SMESHDS_SubMesh * aFaceSubmesh,
477 const bool isMainShape)
480 // check that all faces are bound to aFaceSubmesh
481 if ( aMeshDS->NbFaces() != aFaceSubmesh->NbElements() )
485 // check face nodes binding
486 if ( aFaceSubmesh ) {
487 SMDS_ElemIteratorPtr fIt = aFaceSubmesh->GetElements();
488 return areNodesBound( fIt );
490 SMDS_FaceIteratorPtr fIt = aMeshDS->facesIterator();
491 return areNodesBound( fIt );
494 //=======================================================================
496 //purpose : Create a pattern from the mesh built on <theFace>.
497 // <theProject>==true makes override nodes positions
498 // on <theFace> computed by mesher
499 //=======================================================================
501 bool SMESH_Pattern::Load (SMESH_Mesh* theMesh,
502 const TopoDS_Face& theFace,
505 MESSAGE(" ::Load(face) " );
509 SMESHDS_Mesh * aMeshDS = theMesh->GetMeshDS();
510 SMESHDS_SubMesh * fSubMesh = aMeshDS->MeshElements( theFace );
511 SMESH_MesherHelper helper( *theMesh );
512 helper.SetSubShape( theFace );
514 int nbNodes = ( !fSubMesh ? 0 : fSubMesh->NbNodes() );
515 int nbElems = ( !fSubMesh ? 0 : fSubMesh->NbElements() );
516 if ( nbElems == 0 && aMeshDS->NbFaces() == 0 )
518 MESSAGE( "No elements bound to the face");
519 return setErrorCode( ERR_LOAD_EMPTY_SUBMESH );
522 TopoDS_Face face = TopoDS::Face( theFace.Oriented( TopAbs_FORWARD ));
524 // check that face is not closed
525 bool isClosed = helper.HasSeam();
527 list<TopoDS_Edge> eList;
528 list<TopoDS_Edge>::iterator elIt;
529 SMESH_Block::GetOrderedEdges( face, bidon, eList, myNbKeyPntInBoundary );
531 // check that requested or needed projection is possible
532 bool isMainShape = theMesh->IsMainShape( face );
533 bool needProject = !isMeshBoundToShape( aMeshDS, fSubMesh, isMainShape );
534 bool canProject = ( nbElems ? true : isMainShape );
536 canProject = false; // so far
538 if ( ( theProject || needProject ) && !canProject )
539 return setErrorCode( ERR_LOADF_CANT_PROJECT );
541 Extrema_GenExtPS projector;
542 GeomAdaptor_Surface aSurface( BRep_Tool::Surface( face ));
543 if ( theProject || needProject )
544 projector.Initialize( aSurface, 20,20, 1e-5,1e-5 );
547 TNodePointIDMap nodePointIDMap;
548 TNodePointIDMap closeNodePointIDMap; // for nodes on seam edges
552 MESSAGE("Project the submesh");
553 // ---------------------------------------------------------------
554 // The case where the submesh is projected to theFace
555 // ---------------------------------------------------------------
558 list< const SMDS_MeshElement* > faces;
560 SMDS_ElemIteratorPtr fIt = fSubMesh->GetElements();
561 while ( fIt->more() ) {
562 const SMDS_MeshElement* f = fIt->next();
563 if ( f && f->GetType() == SMDSAbs_Face )
564 faces.push_back( f );
568 SMDS_FaceIteratorPtr fIt = aMeshDS->facesIterator();
569 while ( fIt->more() )
570 faces.push_back( fIt->next() );
573 // put nodes of all faces into the nodePointIDMap and fill myElemPointIDs
574 list< const SMDS_MeshElement* >::iterator fIt = faces.begin();
575 for ( ; fIt != faces.end(); ++fIt )
577 myElemPointIDs.push_back( TElemDef() );
578 TElemDef& elemPoints = myElemPointIDs.back();
579 SMDS_ElemIteratorPtr nIt = (*fIt)->nodesIterator();
580 while ( nIt->more() )
582 const SMDS_MeshElement* node = nIt->next();
583 TNodePointIDMap::iterator nIdIt = nodePointIDMap.find( node );
584 if ( nIdIt == nodePointIDMap.end() )
586 elemPoints.push_back( iPoint );
587 nodePointIDMap.insert( make_pair( node, iPoint++ ));
590 elemPoints.push_back( (*nIdIt).second );
593 myPoints.resize( iPoint );
595 // project all nodes of 2d elements to theFace
596 TNodePointIDMap::iterator nIdIt = nodePointIDMap.begin();
597 for ( ; nIdIt != nodePointIDMap.end(); nIdIt++ )
599 const SMDS_MeshNode* node = smdsNode( (*nIdIt).first );
600 TPoint * p = & myPoints[ (*nIdIt).second ];
601 p->myInitUV = project( node, projector );
602 p->myInitXYZ.SetCoord( p->myInitUV.X(), p->myInitUV.Y(), 0 );
604 // find key-points: the points most close to UV of vertices
605 TopExp_Explorer vExp( face, TopAbs_VERTEX );
606 set<int> foundIndices;
607 for ( ; vExp.More(); vExp.Next() ) {
608 const TopoDS_Vertex v = TopoDS::Vertex( vExp.Current() );
609 gp_Pnt2d uv = BRep_Tool::Parameters( v, face );
610 double minDist = DBL_MAX;
612 vector< TPoint >::const_iterator pVecIt = myPoints.begin();
613 for ( iPoint = 0; pVecIt != myPoints.end(); pVecIt++, iPoint++ ) {
614 double dist = uv.SquareDistance( (*pVecIt).myInitUV );
615 if ( dist < minDist ) {
620 if ( foundIndices.insert( index ).second ) // unique?
621 myKeyPointIDs.push_back( index );
623 myIsBoundaryPointsFound = false;
628 // ---------------------------------------------------------------------
629 // The case where a pattern is being made from the mesh built by mesher
630 // ---------------------------------------------------------------------
632 // Load shapes in the consequent order and count nb of points
635 for ( elIt = eList.begin(); elIt != eList.end(); elIt++ ) {
636 myShapeIDMap.Add( TopExp::FirstVertex( *elIt, true ));
637 bool isClosed1 = BRep_Tool::IsClosed( *elIt, theFace );
638 // BEGIN: jfa for bug 0019943
641 for (TopExp_Explorer expw (theFace, TopAbs_WIRE); expw.More() && !isClosed1; expw.Next()) {
642 const TopoDS_Wire& wire = TopoDS::Wire(expw.Current());
644 for (BRepTools_WireExplorer we (wire, theFace); we.More() && !isClosed1; we.Next()) {
645 if (we.Current().IsSame(*elIt)) {
647 if (nbe == 2) isClosed1 = true;
652 // END: jfa for bug 0019943
654 myShapeIDMap.Add( TopExp::LastVertex( *elIt, true ));
655 SMESHDS_SubMesh * eSubMesh = aMeshDS->MeshElements( *elIt );
657 nbNodes += eSubMesh->NbNodes() + 1;
660 for ( elIt = eList.begin(); elIt != eList.end(); elIt++ )
661 myShapeIDMap.Add( *elIt );
663 myShapeIDMap.Add( face );
665 myPoints.resize( nbNodes );
667 // Load U of points on edges
669 for ( elIt = eList.begin(); elIt != eList.end(); elIt++ )
671 TopoDS_Edge & edge = *elIt;
672 list< TPoint* > & ePoints = getShapePoints( edge );
674 Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface( edge, face, f, l );
675 bool isForward = ( edge.Orientation() == TopAbs_FORWARD );
677 TopoDS_Shape v1 = TopExp::FirstVertex( edge, true ); // always FORWARD
678 TopoDS_Shape v2 = TopExp::LastVertex( edge, true ); // always REVERSED
679 // to make adjacent edges share key-point, we make v2 FORWARD too
680 // (as we have different points for same shape with different orienation)
683 // on closed face we must have REVERSED some of seam vertices
684 bool isSeam = helper.IsSeamShape( edge );
686 if ( isSeam ) { // reverse on reversed SEAM edge
692 else { // on CLOSED edge
693 for ( int is2 = 0; is2 < 2; ++is2 ) {
694 TopoDS_Shape & v = is2 ? v2 : v1;
695 if ( helper.IsSeamShape( v ) ) {
696 // reverse or not depending on orientation of adjacent seam
698 list<TopoDS_Edge>::iterator eIt2 = elIt;
700 seam = ( ++eIt2 == eList.end() ? eList.front() : *eIt2 );
702 seam = ( eIt2 == eList.begin() ? eList.back() : *(--eIt2) );
703 if ( seam.Orientation() == TopAbs_REVERSED )
710 // the forward key-point
711 list< TPoint* > * vPoint = & getShapePoints( v1 );
712 if ( vPoint->empty() )
714 SMESHDS_SubMesh * vSubMesh = aMeshDS->MeshElements( v1 );
715 if ( vSubMesh && vSubMesh->NbNodes() ) {
716 myKeyPointIDs.push_back( iPoint );
717 SMDS_NodeIteratorPtr nIt = vSubMesh->GetNodes();
718 const SMDS_MeshNode* node = nIt->next();
719 if ( v1.Orientation() == TopAbs_REVERSED )
720 closeNodePointIDMap.insert( make_pair( node, iPoint ));
722 nodePointIDMap.insert( make_pair( node, iPoint ));
724 TPoint* keyPoint = &myPoints[ iPoint++ ];
725 vPoint->push_back( keyPoint );
727 keyPoint->myInitUV = project( node, projector );
729 keyPoint->myInitUV = C2d->Value( isForward ? f : l ).XY();
730 keyPoint->myInitXYZ.SetCoord (keyPoint->myInitUV.X(), keyPoint->myInitUV.Y(), 0);
733 if ( !vPoint->empty() )
734 ePoints.push_back( vPoint->front() );
737 SMESHDS_SubMesh * eSubMesh = aMeshDS->MeshElements( edge );
738 if ( eSubMesh && eSubMesh->NbNodes() )
740 // loop on nodes of an edge: sort them by param on edge
741 typedef map < double, const SMDS_MeshNode* > TParamNodeMap;
742 TParamNodeMap paramNodeMap;
743 SMDS_NodeIteratorPtr nIt = eSubMesh->GetNodes();
744 while ( nIt->more() )
746 const SMDS_MeshNode* node = smdsNode( nIt->next() );
747 const SMDS_EdgePosition* epos =
748 static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
749 double u = epos->GetUParameter();
750 paramNodeMap.insert( make_pair( u, node ));
752 if ( paramNodeMap.size() != eSubMesh->NbNodes() ) {
753 // wrong U on edge, project
755 BRepAdaptor_Curve aCurve( edge );
756 proj.Initialize( aCurve, f, l );
757 paramNodeMap.clear();
758 nIt = eSubMesh->GetNodes();
759 for ( int iNode = 0; nIt->more(); ++iNode ) {
760 const SMDS_MeshNode* node = smdsNode( nIt->next() );
761 proj.Perform( gp_Pnt( node->X(), node->Y(), node->Z()));
763 if ( proj.IsDone() ) {
764 for ( int i = 1, nb = proj.NbExt(); i <= nb; ++i )
765 if ( proj.IsMin( i )) {
766 u = proj.Point( i ).Parameter();
770 u = isForward ? iNode : eSubMesh->NbNodes() - iNode;
772 paramNodeMap.insert( make_pair( u, node ));
775 // put U in [0,1] so that the first key-point has U==0
777 TParamNodeMap::iterator unIt = paramNodeMap.begin();
778 TParamNodeMap::reverse_iterator unRIt = paramNodeMap.rbegin();
779 while ( unIt != paramNodeMap.end() )
781 TPoint* p = & myPoints[ iPoint ];
782 ePoints.push_back( p );
783 const SMDS_MeshNode* node = isForward ? (*unIt).second : (*unRIt).second;
784 if ( isSeam && !isForward )
785 closeNodePointIDMap.insert( make_pair( node, iPoint ));
787 nodePointIDMap.insert ( make_pair( node, iPoint ));
790 p->myInitUV = project( node, projector );
792 double u = isForward ? (*unIt).first : (*unRIt).first;
793 p->myInitU = isForward ? (( u - f ) / du ) : ( 1.0 - ( u - f ) / du );
794 p->myInitUV = C2d->Value( u ).XY();
796 p->myInitXYZ.SetCoord( p->myInitUV.X(), p->myInitUV.Y(), 0 );
801 // the reverse key-point
802 vPoint = & getShapePoints( v2 );
803 if ( vPoint->empty() )
805 SMESHDS_SubMesh * vSubMesh = aMeshDS->MeshElements( v2 );
806 if ( vSubMesh && vSubMesh->NbNodes() ) {
807 myKeyPointIDs.push_back( iPoint );
808 SMDS_NodeIteratorPtr nIt = vSubMesh->GetNodes();
809 const SMDS_MeshNode* node = nIt->next();
810 if ( v2.Orientation() == TopAbs_REVERSED )
811 closeNodePointIDMap.insert( make_pair( node, iPoint ));
813 nodePointIDMap.insert( make_pair( node, iPoint ));
815 TPoint* keyPoint = &myPoints[ iPoint++ ];
816 vPoint->push_back( keyPoint );
818 keyPoint->myInitUV = project( node, projector );
820 keyPoint->myInitUV = C2d->Value( isForward ? l : f ).XY();
821 keyPoint->myInitXYZ.SetCoord( keyPoint->myInitUV.X(), keyPoint->myInitUV.Y(), 0 );
824 if ( !vPoint->empty() )
825 ePoints.push_back( vPoint->front() );
827 // compute U of edge-points
830 double totalDist = 0;
831 list< TPoint* >::iterator pIt = ePoints.begin();
832 TPoint* prevP = *pIt;
833 prevP->myInitU = totalDist;
834 for ( pIt++; pIt != ePoints.end(); pIt++ ) {
836 totalDist += ( p->myInitUV - prevP->myInitUV ).Modulus();
837 p->myInitU = totalDist;
840 if ( totalDist > DBL_MIN)
841 for ( pIt = ePoints.begin(); pIt != ePoints.end(); pIt++ ) {
843 p->myInitU /= totalDist;
846 } // loop on edges of a wire
848 // Load in-face points and elements
850 if ( fSubMesh && fSubMesh->NbElements() )
852 list< TPoint* > & fPoints = getShapePoints( face );
853 SMDS_NodeIteratorPtr nIt = fSubMesh->GetNodes();
854 while ( nIt->more() )
856 const SMDS_MeshNode* node = smdsNode( nIt->next() );
857 nodePointIDMap.insert( make_pair( node, iPoint ));
858 TPoint* p = &myPoints[ iPoint++ ];
859 fPoints.push_back( p );
861 p->myInitUV = project( node, projector );
863 const SMDS_FacePosition* pos =
864 static_cast<const SMDS_FacePosition*>(node->GetPosition().get());
865 p->myInitUV.SetCoord( pos->GetUParameter(), pos->GetVParameter() );
867 p->myInitXYZ.SetCoord( p->myInitUV.X(), p->myInitUV.Y(), 0 );
870 SMDS_ElemIteratorPtr elemIt = fSubMesh->GetElements();
871 while ( elemIt->more() )
873 const SMDS_MeshElement* elem = elemIt->next();
874 SMDS_ElemIteratorPtr nIt = elem->nodesIterator();
875 myElemPointIDs.push_back( TElemDef() );
876 TElemDef& elemPoints = myElemPointIDs.back();
877 // find point indices corresponding to element nodes
878 while ( nIt->more() )
880 const SMDS_MeshNode* node = smdsNode( nIt->next() );
881 iPoint = nodePointIDMap[ node ]; // point index of interest
882 // for a node on a seam edge there are two points
883 TNodePointIDMap::iterator n_id = closeNodePointIDMap.end();
884 if ( helper.IsSeamShape( node->GetPosition()->GetShapeId() ))
885 n_id = closeNodePointIDMap.find( node );
886 if ( n_id != closeNodePointIDMap.end() )
888 TPoint & p1 = myPoints[ iPoint ];
889 TPoint & p2 = myPoints[ n_id->second ];
890 // Select point closest to the rest nodes of element in UV space
891 SMDS_ElemIteratorPtr nIt2 = elem->nodesIterator();
892 const SMDS_MeshNode* notSeamNode = 0;
893 // find node not on a seam edge
894 while ( nIt2->more() && !notSeamNode ) {
895 const SMDS_MeshNode* n = smdsNode( nIt2->next() );
896 if ( !helper.IsSeamShape( n->GetPosition()->GetShapeId() ))
899 gp_Pnt2d uv = helper.GetNodeUV( theFace, node, notSeamNode );
900 double dist1 = uv.SquareDistance( p1.myInitUV );
901 double dist2 = uv.SquareDistance( p2.myInitUV );
903 iPoint = n_id->second;
905 elemPoints.push_back( iPoint );
910 myIsBoundaryPointsFound = true;
913 // Assure that U range is proportional to V range
916 vector< TPoint >::iterator pVecIt = myPoints.begin();
917 for ( ; pVecIt != myPoints.end(); pVecIt++ )
918 bndBox.Add( gp_Pnt2d( (*pVecIt).myInitUV ));
919 double minU, minV, maxU, maxV;
920 bndBox.Get( minU, minV, maxU, maxV );
921 double dU = maxU - minU, dV = maxV - minV;
922 if ( dU <= DBL_MIN || dV <= DBL_MIN ) {
925 // define where is the problem, in the face or in the mesh
926 TopExp_Explorer vExp( face, TopAbs_VERTEX );
927 for ( ; vExp.More(); vExp.Next() ) {
928 gp_Pnt2d uv = BRep_Tool::Parameters( TopoDS::Vertex( vExp.Current() ), face );
931 bndBox.Get( minU, minV, maxU, maxV );
932 dU = maxU - minU, dV = maxV - minV;
933 if ( dU <= DBL_MIN || dV <= DBL_MIN )
935 return setErrorCode( ERR_LOADF_NARROW_FACE );
937 // mesh is projected onto a line, e.g.
938 return setErrorCode( ERR_LOADF_CANT_PROJECT );
940 double ratio = dU / dV, maxratio = 3, scale;
942 if ( ratio > maxratio ) {
943 scale = ratio / maxratio;
946 else if ( ratio < 1./maxratio ) {
947 scale = maxratio / ratio;
952 for ( pVecIt = myPoints.begin(); pVecIt != myPoints.end(); pVecIt++ ) {
953 TPoint & p = *pVecIt;
954 p.myInitUV.SetCoord( iCoord, p.myInitUV.Coord( iCoord ) * scale );
955 p.myInitXYZ.SetCoord( p.myInitUV.X(), p.myInitUV.Y(), 0 );
958 if ( myElemPointIDs.empty() ) {
959 MESSAGE( "No elements bound to the face");
960 return setErrorCode( ERR_LOAD_EMPTY_SUBMESH );
963 return setErrorCode( ERR_OK );
966 //=======================================================================
967 //function : computeUVOnEdge
968 //purpose : compute coordinates of points on theEdge
969 //=======================================================================
971 void SMESH_Pattern::computeUVOnEdge (const TopoDS_Edge& theEdge,
972 const list< TPoint* > & ePoints )
974 bool isForward = ( theEdge.Orientation() == TopAbs_FORWARD );
976 Handle(Geom2d_Curve) C2d =
977 BRep_Tool::CurveOnSurface( theEdge, TopoDS::Face( myShape ), f, l );
979 ePoints.back()->myInitU = 1.0;
980 list< TPoint* >::const_iterator pIt = ePoints.begin();
981 for ( pIt++; pIt != ePoints.end(); pIt++ )
983 TPoint* point = *pIt;
985 double du = ( isForward ? point->myInitU : 1 - point->myInitU );
986 point->myU = ( f * ( 1 - du ) + l * du );
988 point->myUV = C2d->Value( point->myU ).XY();
992 //=======================================================================
993 //function : intersectIsolines
995 //=======================================================================
997 static bool intersectIsolines(const gp_XY& uv11, const gp_XY& uv12, const double r1,
998 const gp_XY& uv21, const gp_XY& uv22, const double r2,
1002 gp_XY loc1 = uv11 * ( 1 - r1 ) + uv12 * r1;
1003 gp_XY loc2 = uv21 * ( 1 - r2 ) + uv22 * r2;
1004 resUV = 0.5 * ( loc1 + loc2 );
1005 //isDeformed = ( loc1 - loc2 ).SquareModulus() > 1e-8;
1006 // SKL 26.07.2007 for NPAL16567
1007 double d1 = (uv11-uv12).Modulus();
1008 double d2 = (uv21-uv22).Modulus();
1009 // double delta = d1*d2*1e-6; PAL17233
1010 double delta = min( d1, d2 ) / 10.;
1011 isDeformed = ( loc1 - loc2 ).SquareModulus() > delta * delta;
1013 // double len1 = ( uv11 - uv12 ).Modulus();
1014 // double len2 = ( uv21 - uv22 ).Modulus();
1015 // resUV = loc1 * len2 / ( len1 + len2 ) + loc2 * len1 / ( len1 + len2 );
1019 // gp_Lin2d line1( uv11, uv12 - uv11 );
1020 // gp_Lin2d line2( uv21, uv22 - uv21 );
1021 // double angle = Abs( line1.Angle( line2 ) );
1023 // IntAna2d_AnaIntersection inter;
1024 // inter.Perform( line1.Normal( loc1 ), line2.Normal( loc2 ) );
1025 // if ( inter.IsDone() && inter.NbPoints() == 1 )
1027 // gp_Pnt2d interUV = inter.Point(1).Value();
1028 // resUV += interUV.XY();
1029 // inter.Perform( line1, line2 );
1030 // interUV = inter.Point(1).Value();
1031 // resUV += interUV.XY();
1036 MESSAGE("intersectIsolines(), d1 = " << d1 << ", d2 = " << d2 << ", delta = " << delta <<
1037 ", " << (loc1 - loc2).SquareModulus() << " > " << delta * delta);
1042 //=======================================================================
1043 //function : compUVByIsoIntersection
1045 //=======================================================================
1047 bool SMESH_Pattern::compUVByIsoIntersection (const list< list< TPoint* > >& theBndPoints,
1048 const gp_XY& theInitUV,
1050 bool & theIsDeformed )
1052 // compute UV by intersection of 2 iso lines
1053 //gp_Lin2d isoLine[2];
1054 gp_XY uv1[2], uv2[2];
1056 const double zero = DBL_MIN;
1057 for ( int iIso = 0; iIso < 2; iIso++ )
1059 // to build an iso line:
1060 // find 2 pairs of consequent edge-points such that the range of their
1061 // initial parameters encloses the in-face point initial parameter
1062 gp_XY UV[2], initUV[2];
1063 int nbUV = 0, iCoord = iIso + 1;
1064 double initParam = theInitUV.Coord( iCoord );
1066 list< list< TPoint* > >::const_iterator bndIt = theBndPoints.begin();
1067 for ( ; bndIt != theBndPoints.end(); bndIt++ )
1069 const list< TPoint* > & bndPoints = * bndIt;
1070 TPoint* prevP = bndPoints.back(); // this is the first point
1071 list< TPoint* >::const_iterator pIt = bndPoints.begin();
1072 bool coincPrev = false;
1073 // loop on the edge-points
1074 for ( ; pIt != bndPoints.end(); pIt++ )
1076 double paramDiff = initParam - (*pIt)->myInitUV.Coord( iCoord );
1077 double prevParamDiff = initParam - prevP->myInitUV.Coord( iCoord );
1078 double sumOfDiff = Abs(prevParamDiff) + Abs(paramDiff);
1079 if (!coincPrev && // ignore if initParam coincides with prev point param
1080 sumOfDiff > zero && // ignore if both points coincide with initParam
1081 prevParamDiff * paramDiff <= zero )
1083 // find UV in parametric space of theFace
1084 double r = Abs(prevParamDiff) / sumOfDiff;
1085 gp_XY uvInit = (*pIt)->myInitUV * r + prevP->myInitUV * ( 1 - r );
1088 // throw away uv most distant from <theInitUV>
1089 gp_XY vec0 = initUV[0] - theInitUV;
1090 gp_XY vec1 = initUV[1] - theInitUV;
1091 gp_XY vec = uvInit - theInitUV;
1092 bool isBetween = ( vec0 * vec1 < 0 ); // is theInitUV between initUV[0] and initUV[1]
1093 double dist0 = vec0.SquareModulus();
1094 double dist1 = vec1.SquareModulus();
1095 double dist = vec .SquareModulus();
1096 if ( !isBetween || dist < dist0 || dist < dist1 ) {
1097 i = ( dist0 < dist1 ? 1 : 0 );
1098 if ( isBetween && vec.Dot( i ? vec1 : vec0 ) < 0 )
1099 i = 3; // theInitUV must remain between
1103 initUV[ i ] = uvInit;
1104 UV[ i ] = (*pIt)->myUV * r + prevP->myUV * ( 1 - r );
1106 coincPrev = ( Abs(paramDiff) <= zero );
1113 if ( nbUV < 2 || (UV[0]-UV[1]).SquareModulus() <= DBL_MIN*DBL_MIN ) {
1114 MESSAGE(" consequent edge-points not found, nb UV found: " << nbUV <<
1115 ", for point: " << theInitUV.X() <<" " << theInitUV.Y() );
1116 return setErrorCode( ERR_APPLF_BAD_TOPOLOGY );
1118 // an iso line should be normal to UV[0] - UV[1] direction
1119 // and be located at the same relative distance as from initial ends
1120 //gp_Lin2d iso( UV[0], UV[0] - UV[1] );
1122 (initUV[0]-theInitUV).Modulus() / (initUV[0]-initUV[1]).Modulus();
1123 //gp_Pnt2d isoLoc = UV[0] * ( 1 - r ) + UV[1] * r;
1124 //isoLine[ iIso ] = iso.Normal( isoLoc );
1125 uv1[ iIso ] = UV[0];
1126 uv2[ iIso ] = UV[1];
1129 if ( !intersectIsolines( uv1[0], uv2[0], ratio[0],
1130 uv1[1], uv2[1], ratio[1], theUV, theIsDeformed )) {
1131 MESSAGE(" Cant intersect isolines for a point "<<theInitUV.X()<<", "<<theInitUV.Y());
1132 return setErrorCode( ERR_APPLF_BAD_TOPOLOGY );
1139 // ==========================================================
1140 // structure representing a node of a grid of iso-poly-lines
1141 // ==========================================================
1148 gp_Dir2d myDir[2]; // boundary tangent dir for boundary nodes, iso dir for internal ones
1149 TIsoNode* myNext[4]; // order: (iDir=0,isForward=0), (1,0), (0,1), (1,1)
1150 TIsoNode* myBndNodes[4]; // order: (iDir=0,i=0), (1,0), (0,1), (1,1)
1151 TIsoNode(double initU, double initV):
1152 myInitUV( initU, initV ), myUV( 1e100, 1e100 ), myIsMovable(true)
1153 { myNext[0] = myNext[1] = myNext[2] = myNext[3] = 0; }
1154 bool IsUVComputed() const
1155 { return myUV.X() != 1e100; }
1156 bool IsMovable() const
1157 { return myIsMovable && myNext[0] && myNext[1] && myNext[2] && myNext[3]; }
1158 void SetNotMovable()
1159 { myIsMovable = false; }
1160 void SetBoundaryNode(TIsoNode* node, int iDir, int i)
1161 { myBndNodes[ iDir + i * 2 ] = node; }
1162 TIsoNode* GetBoundaryNode(int iDir, int i)
1163 { return myBndNodes[ iDir + i * 2 ]; }
1164 void SetNext(TIsoNode* node, int iDir, int isForward)
1165 { myNext[ iDir + isForward * 2 ] = node; }
1166 TIsoNode* GetNext(int iDir, int isForward)
1167 { return myNext[ iDir + isForward * 2 ]; }
1170 //=======================================================================
1171 //function : getNextNode
1173 //=======================================================================
1175 static inline TIsoNode* getNextNode(const TIsoNode* node, int dir )
1177 TIsoNode* n = node->myNext[ dir ];
1178 if ( n && !n->IsUVComputed()/* && node->IsMovable()*/ ) {
1179 n = 0;//node->myBndNodes[ dir ];
1180 // MESSAGE("getNextNode: use bnd for node "<<
1181 // node->myInitUV.X()<<" "<<node->myInitUV.Y());
1185 //=======================================================================
1186 //function : checkQuads
1187 //purpose : check if newUV destortes quadrangles around node,
1188 // and if ( crit == FIX_OLD ) fix newUV in this case
1189 //=======================================================================
1191 enum { CHECK_NEW_IN, CHECK_NEW_OK, FIX_OLD };
1193 static bool checkQuads (const TIsoNode* node,
1195 const bool reversed,
1196 const int crit = FIX_OLD,
1197 double fixSize = 0.)
1199 gp_XY oldUV = node->myUV, oldUVFixed[4], oldUVImpr[4];
1200 int nbOldFix = 0, nbOldImpr = 0;
1201 double newBadRate = 0, oldBadRate = 0;
1202 bool newIsOk = true, newIsIn = true, oldIsIn = true, oldIsOk = true;
1203 int i, dir1 = 0, dir2 = 3;
1204 for ( ; dir1 < 4; dir1++, dir2++ ) // loop on 4 quadrangles around <node>
1206 if ( dir2 > 3 ) dir2 = 0;
1208 // walking counterclockwise around a quad,
1209 // nodes are in the order: node, n[0], n[1], n[2]
1210 n[0] = getNextNode( node, dir1 );
1211 n[2] = getNextNode( node, dir2 );
1212 if ( !n[0] || !n[2] ) continue;
1213 n[1] = getNextNode( n[0], dir2 );
1214 if ( !n[1] ) n[1] = getNextNode( n[2], dir1 );
1215 bool isTriangle = ( !n[1] );
1217 TIsoNode* tmp = n[0]; n[0] = n[2]; n[2] = tmp;
1219 // if ( fixSize != 0 ) {
1220 // cout<<"NODE: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<" UV: "<<node->myUV.X()<<" "<<node->myUV.Y()<<endl;
1221 // cout<<"\t0: "<<n[0]->myInitUV.X()<<" "<<n[0]->myInitUV.Y()<<" UV: "<<n[0]->myUV.X()<<" "<<n[0]->myUV.Y()<<endl;
1222 // cout<<"\t1: "<<n[1]->myInitUV.X()<<" "<<n[1]->myInitUV.Y()<<" UV: "<<n[1]->myUV.X()<<" "<<n[1]->myUV.Y()<<endl;
1223 // cout<<"\t2: "<<n[2]->myInitUV.X()<<" "<<n[2]->myInitUV.Y()<<" UV: "<<n[2]->myUV.X()<<" "<<n[2]->myUV.Y()<<endl;
1225 // check if a quadrangle is degenerated
1227 ((( n[0]->myUV - n[1]->myUV ).SquareModulus() <= DBL_MIN ) ||
1228 (( n[2]->myUV - n[1]->myUV ).SquareModulus() <= DBL_MIN )))
1231 ( n[0]->myUV - n[2]->myUV ).SquareModulus() <= DBL_MIN )
1234 // find min size of the diagonal node-n[1]
1235 double minDiag = fixSize;
1236 if ( minDiag == 0. ) {
1237 double maxLen2 = ( node->myUV - n[0]->myUV ).SquareModulus();
1238 if ( !isTriangle ) {
1239 maxLen2 = Max( maxLen2, ( n[0]->myUV - n[1]->myUV ).SquareModulus() );
1240 maxLen2 = Max( maxLen2, ( n[1]->myUV - n[2]->myUV ).SquareModulus() );
1242 maxLen2 = Max( maxLen2, ( n[2]->myUV - node->myUV ).SquareModulus() );
1243 minDiag = sqrt( maxLen2 ) * PI / 60.; // ~ maxLen * Sin( 3 deg )
1246 // check if newUV is behind 3 dirs: n[0]-n[1], n[1]-n[2] and n[0]-n[2]
1247 // ( behind means "to the right of")
1249 // 1. newUV is not behind 01 and 12 dirs
1250 // 2. or newUV is not behind 02 dir and n[2] is convex
1251 bool newIn[3] = { true, true, true }, newOk[3] = { true, true, true };
1252 bool wasIn[3] = { true, true, true }, wasOk[3] = { true, true, true };
1253 gp_Vec2d moveVec[3], outVec[3];
1254 for ( i = isTriangle ? 2 : 0; i < 3; i++ )
1256 bool isDiag = ( i == 2 );
1257 if ( isDiag && newOk[0] && newOk[1] && !isTriangle )
1261 sideDir = gp_Vec2d( n[0]->myUV, n[2]->myUV );
1263 sideDir = gp_Vec2d( n[i]->myUV, n[i+1]->myUV );
1265 gp_Vec2d outDir( sideDir.Y(), -sideDir.X() ); // to the right
1267 gp_Vec2d newDir( n[i]->myUV, newUV );
1268 gp_Vec2d oldDir( n[i]->myUV, oldUV );
1270 if ( newIsOk ) newOk[i] = ( outDir * newDir < -minDiag );
1271 if ( newIsIn ) newIn[i] = ( outDir * newDir < 0 );
1272 if ( crit == FIX_OLD ) {
1273 wasIn[i] = ( outDir * oldDir < 0 );
1274 wasOk[i] = ( outDir * oldDir < -minDiag );
1276 newBadRate += outDir * newDir;
1278 oldBadRate += outDir * oldDir;
1281 double oldDist = - outDir * oldDir;//, l2 = outDir * newDir;
1282 // double r = ( l1 - minDiag ) / ( l1 + l2 );
1283 // moveVec[i] = r * gp_Vec2d( node->myUV, newUV );
1284 moveVec[i] = ( oldDist - minDiag ) * outDir;
1289 // check if n[2] is convex
1292 convex = ( outVec[0] * gp_Vec2d( n[1]->myUV, n[2]->myUV ) < 0 );
1294 bool isNewOk = ( newOk[0] && newOk[1] ) || ( newOk[2] && convex );
1295 bool isNewIn = ( newIn[0] && newIn[1] ) || ( newIn[2] && convex );
1296 newIsOk = ( newIsOk && isNewOk );
1297 newIsIn = ( newIsIn && isNewIn );
1299 if ( crit != FIX_OLD ) {
1300 if ( crit == CHECK_NEW_OK && !newIsOk ) break;
1301 if ( crit == CHECK_NEW_IN && !newIsIn ) break;
1305 bool isOldIn = ( wasIn[0] && wasIn[1] ) || ( wasIn[2] && convex );
1306 bool isOldOk = ( wasOk[0] && wasOk[1] ) || ( wasOk[2] && convex );
1307 oldIsIn = ( oldIsIn && isOldIn );
1308 oldIsOk = ( oldIsOk && isOldIn );
1311 if ( !isOldIn ) { // node is outside a quadrangle
1312 // move newUV inside a quadrangle
1313 //MESSAGE("Quad "<< dir1 << " WAS IN " << wasIn[0]<<" "<<wasIn[1]<<" "<<wasIn[2]);
1314 // node and newUV are outside: push newUV inside
1316 if ( convex || isTriangle ) {
1317 uv = 0.5 * ( n[0]->myUV + n[2]->myUV ) - minDiag * outVec[2].XY();
1320 gp_Vec2d out = outVec[0].Normalized() + outVec[1].Normalized();
1321 double outSize = out.Magnitude();
1322 if ( outSize > DBL_MIN )
1325 out.SetCoord( -outVec[1].Y(), outVec[1].X() );
1326 uv = n[1]->myUV - minDiag * out.XY();
1328 oldUVFixed[ nbOldFix++ ] = uv;
1329 //node->myUV = newUV;
1331 else if ( !isOldOk ) {
1332 // try to fix old UV: move node inside as less as possible
1333 //MESSAGE("Quad "<< dir1 << " old is BAD, try to fix old, minDiag: "<< minDiag);
1334 gp_XY uv1, uv2 = node->myUV;
1335 for ( i = isTriangle ? 2 : 0; i < 3; i++ ) // mark not computed vectors
1337 moveVec[ i ].SetCoord( 1, 2e100); // not use this vector
1338 while ( !isOldOk ) {
1339 // find the least moveVec
1341 double minMove2 = 1e100;
1342 for ( i = isTriangle ? 2 : 0; i < 3; i++ )
1344 if ( moveVec[i].Coord(1) < 1e100 ) {
1345 double move2 = moveVec[i].SquareMagnitude();
1346 if ( move2 < minMove2 ) {
1355 // move node to newUV
1356 uv1 = node->myUV + moveVec[ iMin ].XY();
1357 uv2 += moveVec[ iMin ].XY();
1358 moveVec[ iMin ].SetCoord( 1, 2e100); // not use this vector more
1359 // check if uv1 is ok
1360 for ( i = isTriangle ? 2 : 0; i < 3; i++ )
1361 wasOk[i] = ( outVec[i] * gp_Vec2d( n[i]->myUV, uv1 ) < -minDiag );
1362 isOldOk = ( wasOk[0] && wasOk[1] ) || ( wasOk[2] && convex );
1364 oldUVImpr[ nbOldImpr++ ] = uv1;
1366 // check if uv2 is ok
1367 for ( i = isTriangle ? 2 : 0; i < 3; i++ )
1368 wasOk[i] = ( outVec[i] * gp_Vec2d( n[i]->myUV, uv2 ) < -minDiag );
1369 isOldOk = ( wasOk[0] && wasOk[1] ) || ( wasOk[2] && convex );
1371 oldUVImpr[ nbOldImpr++ ] = uv2;
1376 } // loop on 4 quadrangles around <node>
1378 if ( crit == CHECK_NEW_OK )
1380 if ( crit == CHECK_NEW_IN )
1389 if ( oldIsIn && nbOldImpr ) {
1390 // MESSAGE(" Try to improve UV, init: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<
1391 // " uv: "<<oldUV.X()<<" "<<oldUV.Y() );
1392 gp_XY uv = oldUVImpr[ 0 ];
1393 for ( int i = 1; i < nbOldImpr; i++ )
1394 uv += oldUVImpr[ i ];
1396 if ( checkQuads( node, uv, reversed, CHECK_NEW_OK )) {
1401 //MESSAGE(" Cant improve UV, uv: "<<uv.X()<<" "<<uv.Y());
1404 if ( !oldIsIn && nbOldFix ) {
1405 // MESSAGE(" Try to fix UV, init: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<
1406 // " uv: "<<oldUV.X()<<" "<<oldUV.Y() );
1407 gp_XY uv = oldUVFixed[ 0 ];
1408 for ( int i = 1; i < nbOldFix; i++ )
1409 uv += oldUVFixed[ i ];
1411 if ( checkQuads( node, uv, reversed, CHECK_NEW_IN )) {
1416 //MESSAGE(" Cant fix UV, uv: "<<uv.X()<<" "<<uv.Y());
1419 if ( newIsIn && oldIsIn )
1420 newUV = ( newBadRate < oldBadRate ) ? newUV : oldUV;
1421 else if ( !newIsIn )
1428 //=======================================================================
1429 //function : compUVByElasticIsolines
1430 //purpose : compute UV as nodes of iso-poly-lines consisting of
1431 // segments keeping relative size as in the pattern
1432 //=======================================================================
1433 //#define DEB_COMPUVBYELASTICISOLINES
1434 bool SMESH_Pattern::
1435 compUVByElasticIsolines(const list< list< TPoint* > >& theBndPoints,
1436 const list< TPoint* >& thePntToCompute)
1438 return false; // PAL17233
1439 //cout << "============================== KEY POINTS =============================="<<endl;
1440 // list< int >::iterator kpIt = myKeyPointIDs.begin();
1441 // for ( ; kpIt != myKeyPointIDs.end(); kpIt++ ) {
1442 // TPoint& p = myPoints[ *kpIt ];
1443 // cout << "INIT: " << p.myInitUV.X() << " " << p.myInitUV.Y() <<
1444 // " UV: " << p.myUV.X() << " " << p.myUV.Y() << endl;
1446 //cout << "=============================="<<endl;
1448 // Define parameters of iso-grid nodes in U and V dir
1450 set< double > paramSet[ 2 ];
1451 list< list< TPoint* > >::const_iterator pListIt;
1452 list< TPoint* >::const_iterator pIt;
1453 for ( pListIt = theBndPoints.begin(); pListIt != theBndPoints.end(); pListIt++ ) {
1454 const list< TPoint* > & pList = * pListIt;
1455 for ( pIt = pList.begin(); pIt != pList.end(); pIt++ ) {
1456 paramSet[0].insert( (*pIt)->myInitUV.X() );
1457 paramSet[1].insert( (*pIt)->myInitUV.Y() );
1460 for ( pIt = thePntToCompute.begin(); pIt != thePntToCompute.end(); pIt++ ) {
1461 paramSet[0].insert( (*pIt)->myInitUV.X() );
1462 paramSet[1].insert( (*pIt)->myInitUV.Y() );
1464 // unite close parameters and split too long segments
1467 for ( iDir = 0; iDir < 2; iDir++ )
1469 set< double > & params = paramSet[ iDir ];
1470 double range = ( *params.rbegin() - *params.begin() );
1471 double toler = range / 1e6;
1472 tol[ iDir ] = toler;
1473 // double maxSegment = range / params.size() / 2.;
1475 // set< double >::iterator parIt = params.begin();
1476 // double prevPar = *parIt;
1477 // for ( parIt++; parIt != params.end(); parIt++ )
1479 // double segLen = (*parIt) - prevPar;
1480 // if ( segLen < toler )
1481 // ;//params.erase( prevPar ); // unite
1482 // else if ( segLen > maxSegment )
1483 // params.insert( prevPar + 0.5 * segLen ); // split
1484 // prevPar = (*parIt);
1488 // Make nodes of a grid of iso-poly-lines
1490 list < TIsoNode > nodes;
1491 typedef list < TIsoNode *> TIsoLine;
1492 map < double, TIsoLine > isoMap[ 2 ];
1494 set< double > & params0 = paramSet[ 0 ];
1495 set< double >::iterator par0It = params0.begin();
1496 for ( ; par0It != params0.end(); par0It++ )
1498 TIsoLine & isoLine0 = isoMap[0][ *par0It ]; // vertical isoline with const U
1499 set< double > & params1 = paramSet[ 1 ];
1500 set< double >::iterator par1It = params1.begin();
1501 for ( ; par1It != params1.end(); par1It++ )
1503 nodes.push_back( TIsoNode( *par0It, *par1It ) );
1504 isoLine0.push_back( & nodes.back() );
1505 isoMap[1][ *par1It ].push_back( & nodes.back() );
1509 // Compute intersections of boundaries with iso-lines:
1510 // only boundary nodes will have computed UV so far
1513 list< list< TPoint* > >::const_iterator bndIt = theBndPoints.begin();
1514 list< TIsoNode* > bndNodes; // nodes corresponding to outer theBndPoints
1515 for ( ; bndIt != theBndPoints.end(); bndIt++ )
1517 const list< TPoint* > & bndPoints = * bndIt;
1518 TPoint* prevP = bndPoints.back(); // this is the first point
1519 list< TPoint* >::const_iterator pIt = bndPoints.begin();
1520 // loop on the edge-points
1521 for ( ; pIt != bndPoints.end(); pIt++ )
1523 TPoint* point = *pIt;
1524 for ( iDir = 0; iDir < 2; iDir++ )
1526 const int iCoord = iDir + 1;
1527 const int iOtherCoord = 2 - iDir;
1528 double par1 = prevP->myInitUV.Coord( iCoord );
1529 double par2 = point->myInitUV.Coord( iCoord );
1530 double parDif = par2 - par1;
1531 if ( Abs( parDif ) <= DBL_MIN )
1533 // find iso-lines intersecting a bounadry
1534 double toler = tol[ 1 - iDir ];
1535 double minPar = Min ( par1, par2 );
1536 double maxPar = Max ( par1, par2 );
1537 map < double, TIsoLine >& isos = isoMap[ iDir ];
1538 map < double, TIsoLine >::iterator isoIt = isos.begin();
1539 for ( ; isoIt != isos.end(); isoIt++ )
1541 double isoParam = (*isoIt).first;
1542 if ( isoParam < minPar || isoParam > maxPar )
1544 double r = ( isoParam - par1 ) / parDif;
1545 gp_XY uv = ( 1 - r ) * prevP->myUV + r * point->myUV;
1546 gp_XY initUV = ( 1 - r ) * prevP->myInitUV + r * point->myInitUV;
1547 double otherPar = initUV.Coord( iOtherCoord ); // along isoline
1548 // find existing node with otherPar or insert a new one
1549 TIsoLine & isoLine = (*isoIt).second;
1551 TIsoLine::iterator nIt = isoLine.begin();
1552 for ( ; nIt != isoLine.end(); nIt++ ) {
1553 nodePar = (*nIt)->myInitUV.Coord( iOtherCoord );
1554 if ( nodePar >= otherPar )
1558 if ( Abs( nodePar - otherPar ) <= toler )
1559 node = ( nIt == isoLine.end() ) ? isoLine.back() : (*nIt);
1561 nodes.push_back( TIsoNode( initUV.X(), initUV.Y() ) );
1562 node = & nodes.back();
1563 isoLine.insert( nIt, node );
1565 node->SetNotMovable();
1567 uvBnd.Add( gp_Pnt2d( uv ));
1568 // cout << "bnd: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<" UV: "<<node->myUV.X()<<" "<<node->myUV.Y()<<endl;
1570 gp_XY tgt( point->myUV - prevP->myUV );
1571 if ( ::IsEqual( r, 1. ))
1572 node->myDir[ 0 ] = tgt;
1573 else if ( ::IsEqual( r, 0. ))
1574 node->myDir[ 1 ] = tgt;
1576 node->myDir[ 1 ] = node->myDir[ 0 ] = tgt;
1577 // keep boundary nodes corresponding to boundary points
1578 if ( bndIt == theBndPoints.begin() && ::IsEqual( r, 1. ))
1579 if ( bndNodes.empty() || bndNodes.back() != node )
1580 bndNodes.push_back( node );
1581 } // loop on isolines
1582 } // loop on 2 directions
1584 } // loop on boundary points
1585 } // loop on boundaries
1587 // Define orientation
1589 // find the point with the least X
1590 double leastX = DBL_MAX;
1591 TIsoNode * leftNode;
1592 list < TIsoNode >::iterator nodeIt = nodes.begin();
1593 for ( ; nodeIt != nodes.end(); nodeIt++ ) {
1594 TIsoNode & node = *nodeIt;
1595 if ( node.IsUVComputed() && node.myUV.X() < leastX ) {
1596 leastX = node.myUV.X();
1599 // if ( node.IsUVComputed() ) {
1600 // cout << "bndNode INIT: " << node.myInitUV.X()<<" "<<node.myInitUV.Y()<<" UV: "<<
1601 // node.myUV.X()<<" "<<node.myUV.Y()<<endl<<
1602 // " dir0: "<<node.myDir[0].X()<<" "<<node.myDir[0].Y() <<
1603 // " dir1: "<<node.myDir[1].X()<<" "<<node.myDir[1].Y() << endl;
1606 bool reversed = ( leftNode->myDir[0].Y() + leftNode->myDir[1].Y() > 0 );
1607 //SCRUTE( reversed );
1609 // Prepare internal nodes:
1611 // 2. compute ratios
1612 // 3. find boundary nodes for each node
1613 // 4. remove nodes out of the boundary
1614 for ( iDir = 0; iDir < 2; iDir++ )
1616 const int iCoord = 2 - iDir; // coord changing along an isoline
1617 map < double, TIsoLine >& isos = isoMap[ iDir ];
1618 map < double, TIsoLine >::iterator isoIt = isos.begin();
1619 for ( ; isoIt != isos.end(); isoIt++ )
1621 TIsoLine & isoLine = (*isoIt).second;
1622 bool firstCompNodeFound = false;
1623 TIsoLine::iterator lastCompNodePos, nPrevIt, nIt, nNextIt, nIt2;
1624 nPrevIt = nIt = nNextIt = isoLine.begin();
1626 nNextIt++; nNextIt++;
1627 while ( nIt != isoLine.end() )
1629 // 1. connect prev - cur
1630 TIsoNode* node = *nIt, * prevNode = *nPrevIt;
1631 if ( !firstCompNodeFound && prevNode->IsUVComputed() ) {
1632 firstCompNodeFound = true;
1633 lastCompNodePos = nPrevIt;
1635 if ( firstCompNodeFound ) {
1636 node->SetNext( prevNode, iDir, 0 );
1637 prevNode->SetNext( node, iDir, 1 );
1640 if ( nNextIt != isoLine.end() ) {
1641 double par1 = prevNode->myInitUV.Coord( iCoord );
1642 double par2 = node->myInitUV.Coord( iCoord );
1643 double par3 = (*nNextIt)->myInitUV.Coord( iCoord );
1644 node->myRatio[ iDir ] = ( par2 - par1 ) / ( par3 - par1 );
1646 // 3. find boundary nodes
1647 if ( node->IsUVComputed() )
1648 lastCompNodePos = nIt;
1649 else if ( firstCompNodeFound && nNextIt != isoLine.end() ) {
1650 TIsoNode* bndNode1 = *lastCompNodePos, *bndNode2 = 0;
1651 for ( nIt2 = nNextIt; nIt2 != isoLine.end(); nIt2++ )
1652 if ( (*nIt2)->IsUVComputed() )
1654 if ( nIt2 != isoLine.end() ) {
1656 node->SetBoundaryNode( bndNode1, iDir, 0 );
1657 node->SetBoundaryNode( bndNode2, iDir, 1 );
1658 // cout << "--------------------------------------------------"<<endl;
1659 // cout << "bndNode1: " << bndNode1->myUV.X()<<" "<<bndNode1->myUV.Y()<<endl<<
1660 // " dir0: "<<bndNode1->myDir[0].X()<<" "<<bndNode1->myDir[0].Y() <<
1661 // " dir1: "<<bndNode1->myDir[1].X()<<" "<<bndNode1->myDir[1].Y() << endl;
1662 // cout << "bndNode2: " << bndNode2->myUV.X()<<" "<<bndNode2->myUV.Y()<<endl<<
1663 // " dir0: "<<bndNode2->myDir[0].X()<<" "<<bndNode2->myDir[0].Y() <<
1664 // " dir1: "<<bndNode2->myDir[1].X()<<" "<<bndNode2->myDir[1].Y() << endl;
1667 /// WHAT IN THIS CASE ????????????? MAY BE THIS, I AM NOT SURE :(
1668 node->SetBoundaryNode( 0, iDir, 0 );
1669 node->SetBoundaryNode( 0, iDir, 1 );
1673 if ( nNextIt != isoLine.end() ) nNextIt++;
1674 // 4. remove nodes out of the boundary
1675 if ( !firstCompNodeFound )
1676 isoLine.pop_front();
1677 } // loop on isoLine nodes
1679 // remove nodes after the boundary
1680 // for ( nIt = ++lastCompNodePos; nIt != isoLine.end(); nIt++ )
1681 // (*nIt)->SetNotMovable();
1682 isoLine.erase( ++lastCompNodePos, isoLine.end() );
1683 } // loop on isolines
1684 } // loop on 2 directions
1686 // Compute local isoline direction for internal nodes
1689 map < double, TIsoLine >& isos = isoMap[ 0 ]; // vertical isolines with const U
1690 map < double, TIsoLine >::iterator isoIt = isos.begin();
1691 for ( ; isoIt != isos.end(); isoIt++ )
1693 TIsoLine & isoLine = (*isoIt).second;
1694 TIsoLine::iterator nIt = isoLine.begin();
1695 for ( ; nIt != isoLine.end(); nIt++ )
1697 TIsoNode* node = *nIt;
1698 if ( node->IsUVComputed() || !node->IsMovable() )
1700 gp_Vec2d aTgt[2], aNorm[2];
1703 for ( iDir = 0; iDir < 2; iDir++ )
1705 TIsoNode* bndNode1 = node->GetBoundaryNode( iDir, 0 );
1706 TIsoNode* bndNode2 = node->GetBoundaryNode( iDir, 1 );
1707 if ( !bndNode1 || !bndNode2 ) {
1711 const int iCoord = 2 - iDir; // coord changing along an isoline
1712 double par1 = bndNode1->myInitUV.Coord( iCoord );
1713 double par2 = node->myInitUV.Coord( iCoord );
1714 double par3 = bndNode2->myInitUV.Coord( iCoord );
1715 ratio[ iDir ] = ( par2 - par1 ) / ( par3 - par1 );
1717 gp_Vec2d tgt1( bndNode1->myDir[0].XY() + bndNode1->myDir[1].XY() );
1718 gp_Vec2d tgt2( bndNode2->myDir[0].XY() + bndNode2->myDir[1].XY() );
1719 if ( bool( iDir ) == reversed ) tgt2.Reverse(); // along perpend. isoline
1720 else tgt1.Reverse();
1721 //cout<<" tgt: " << tgt1.X()<<" "<<tgt1.Y()<<" | "<< tgt2.X()<<" "<<tgt2.Y()<<endl;
1723 if ( ratio[ iDir ] < 0.5 )
1724 aNorm[ iDir ] = gp_Vec2d( -tgt1.Y(), tgt1.X() ); // rotate tgt to the left
1726 aNorm[ iDir ] = gp_Vec2d( -tgt2.Y(), tgt2.X() );
1728 aNorm[ iDir ].Reverse(); // along iDir isoline
1730 double angle = tgt1.Angle( tgt2 ); // [-PI, PI]
1731 // maybe angle is more than |PI|
1732 if ( Abs( angle ) > PI / 2. ) {
1733 // check direction of the last but one perpendicular isoline
1734 TIsoNode* prevNode = bndNode2->GetNext( iDir, 0 );
1735 bndNode1 = prevNode->GetBoundaryNode( 1 - iDir, 0 );
1736 bndNode2 = prevNode->GetBoundaryNode( 1 - iDir, 1 );
1737 gp_Vec2d isoDir( bndNode1->myUV, bndNode2->myUV );
1738 if ( isoDir * tgt2 < 0 )
1740 double angle2 = tgt1.Angle( isoDir );
1741 //cout << " isoDir: "<< isoDir.X() <<" "<<isoDir.Y() << " ANGLE: "<< angle << " "<<angle2<<endl;
1742 if (angle2 * angle < 0 && // check the sign of an angle close to PI
1743 Abs ( Abs ( angle ) - PI ) <= PI / 180. ) {
1744 //MESSAGE("REVERSE ANGLE");
1747 if ( Abs( angle2 ) > Abs( angle ) ||
1748 ( angle2 * angle < 0 && Abs( angle2 ) > Abs( angle - angle2 ))) {
1749 //MESSAGE("Add PI");
1750 // cout << "NODE: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<endl;
1751 // cout <<"ISO: " << isoParam << " " << (*iso2It).first << endl;
1752 // cout << "bndNode1: " << bndNode1->myUV.X()<<" "<<bndNode1->myUV.Y()<< endl;
1753 // cout << "bndNode2: " << bndNode2->myUV.X()<<" "<<bndNode2->myUV.Y()<<endl;
1754 // cout <<" tgt: " << tgt1.X()<<" "<<tgt1.Y()<<" "<< tgt2.X()<<" "<<tgt2.Y()<<endl;
1755 angle += ( angle < 0 ) ? 2. * PI : -2. * PI;
1758 aTgt[ iDir ] = tgt1.Rotated( angle * ratio[ iDir ] ).XY();
1762 for ( iDir = 0; iDir < 2; iDir++ )
1764 aTgt[iDir].Normalize();
1765 aNorm[1-iDir].Normalize();
1766 double r = Abs ( ratio[iDir] - 0.5 ) * 2.0; // [0,1] - distance from the middle
1769 node->myDir[iDir] = //aTgt[iDir];
1770 aNorm[1-iDir] * r + aTgt[iDir] * ( 1. - r );
1772 // cout << "NODE: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<endl;
1773 // cout <<" tgt: " << tgt1.X()<<" "<<tgt1.Y()<<" - "<< tgt2.X()<<" "<<tgt2.Y()<<endl;
1774 // cout << " isoDir: "<< node->myDir[0].X() <<" "<<node->myDir[0].Y()<<" | "
1775 // << node->myDir[1].X() <<" "<<node->myDir[1].Y()<<endl;
1777 } // loop on iso nodes
1778 } // loop on isolines
1780 // Find nodes to start computing UV from
1782 list< TIsoNode* > startNodes;
1783 list< TIsoNode* >::iterator nIt = bndNodes.end();
1784 TIsoNode* node = *(--nIt);
1785 TIsoNode* prevNode = *(--nIt);
1786 for ( nIt = bndNodes.begin(); nIt != bndNodes.end(); nIt++ )
1788 TIsoNode* nextNode = *nIt;
1789 gp_Vec2d initTgt1( prevNode->myInitUV, node->myInitUV );
1790 gp_Vec2d initTgt2( node->myInitUV, nextNode->myInitUV );
1791 double initAngle = initTgt1.Angle( initTgt2 );
1792 double angle = node->myDir[0].Angle( node->myDir[1] );
1793 if ( reversed ) angle = -angle;
1794 if ( initAngle > angle && initAngle - angle > PI / 2.1 ) {
1795 // find a close internal node
1796 TIsoNode* nClose = 0;
1797 list< TIsoNode* > testNodes;
1798 testNodes.push_back( node );
1799 list< TIsoNode* >::iterator it = testNodes.begin();
1800 for ( ; !nClose && it != testNodes.end(); it++ )
1802 for (int i = 0; i < 4; i++ )
1804 nClose = (*it)->myNext[ i ];
1806 if ( !nClose->IsUVComputed() )
1809 testNodes.push_back( nClose );
1815 startNodes.push_back( nClose );
1816 // cout << "START: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<" UV: "<<
1817 // node->myUV.X()<<" "<<node->myUV.Y()<<endl<<
1818 // "initAngle: " << initAngle << " angle: " << angle << endl;
1819 // cout <<" init tgt: " << initTgt1.X()<<" "<<initTgt1.Y()<<" | "<< initTgt2.X()<<" "<<initTgt2.Y()<<endl;
1820 // cout << " tgt: "<< node->myDir[ 0 ].X() <<" "<<node->myDir[ 0 ].Y()<<" | "<<
1821 // node->myDir[ 1 ].X() <<" "<<node->myDir[ 1 ].Y()<<endl;
1822 // cout << "CLOSE: "<<nClose->myInitUV.X()<<" "<<nClose->myInitUV.Y()<<endl;
1828 // Compute starting UV of internal nodes
1830 list < TIsoNode* > internNodes;
1831 bool needIteration = true;
1832 if ( startNodes.empty() ) {
1833 MESSAGE( " Starting UV by compUVByIsoIntersection()");
1834 needIteration = false;
1835 map < double, TIsoLine >& isos = isoMap[ 0 ];
1836 map < double, TIsoLine >::iterator isoIt = isos.begin();
1837 for ( ; isoIt != isos.end(); isoIt++ )
1839 TIsoLine & isoLine = (*isoIt).second;
1840 TIsoLine::iterator nIt = isoLine.begin();
1841 for ( ; !needIteration && nIt != isoLine.end(); nIt++ )
1843 TIsoNode* node = *nIt;
1844 if ( !node->IsUVComputed() && node->IsMovable() ) {
1845 internNodes.push_back( node );
1847 if ( !compUVByIsoIntersection(theBndPoints, node->myInitUV,
1848 node->myUV, needIteration ))
1849 node->myUV = node->myInitUV;
1853 if ( needIteration )
1854 for ( nIt = bndNodes.begin(); nIt != bndNodes.end(); nIt++ )
1856 TIsoNode* node = *nIt, *nClose = 0;
1857 list< TIsoNode* > testNodes;
1858 testNodes.push_back( node );
1859 list< TIsoNode* >::iterator it = testNodes.begin();
1860 for ( ; !nClose && it != testNodes.end(); it++ )
1862 for (int i = 0; i < 4; i++ )
1864 nClose = (*it)->myNext[ i ];
1866 if ( !nClose->IsUVComputed() && nClose->IsMovable() )
1869 testNodes.push_back( nClose );
1875 startNodes.push_back( nClose );
1879 double aMin[2], aMax[2], step[2];
1880 uvBnd.Get( aMin[0], aMin[1], aMax[0], aMax[1] );
1881 double minUvSize = Min ( aMax[0]-aMin[0], aMax[1]-aMin[1] );
1882 step[0] = minUvSize / paramSet[ 0 ].size() / 10;
1883 step[1] = minUvSize / paramSet[ 1 ].size() / 10;
1884 //cout << "STEPS: " << step[0] << " " << step[1]<< endl;
1886 for ( nIt = startNodes.begin(); nIt != startNodes.end(); nIt++ )
1888 TIsoNode* prevN[2], *node = *nIt;
1889 if ( node->IsUVComputed() || !node->IsMovable() )
1891 gp_XY newUV( 0, 0 ), sumDir( 0, 0 );
1892 int nbComp = 0, nbPrev = 0;
1893 for ( iDir = 0; iDir < 2; iDir++ )
1895 TIsoNode* prevNode1 = 0, *prevNode2 = 0;
1896 TIsoNode* n = node->GetNext( iDir, 0 );
1897 if ( n->IsUVComputed() )
1900 startNodes.push_back( n );
1901 n = node->GetNext( iDir, 1 );
1902 if ( n->IsUVComputed() )
1905 startNodes.push_back( n );
1907 prevNode1 = prevNode2;
1910 if ( prevNode1 ) nbPrev++;
1911 if ( prevNode2 ) nbPrev++;
1914 double prevPar = prevNode1->myInitUV.Coord( 2 - iDir );
1915 double par = node->myInitUV.Coord( 2 - iDir );
1916 bool isEnd = ( prevPar > par );
1917 // dir = node->myDir[ 1 - iDir ].XY() * ( isEnd ? -1. : 1. );
1918 //cout << "__________"<<endl<< "NODE: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<endl;
1919 TIsoNode* bndNode = node->GetBoundaryNode( iDir, isEnd );
1921 MESSAGE("Why we are here?");
1924 gp_XY tgt( bndNode->myDir[0].XY() + bndNode->myDir[1].XY() );
1925 dir.SetCoord( 1, tgt.Y() * ( reversed ? 1 : -1 ));
1926 dir.SetCoord( 2, tgt.X() * ( reversed ? -1 : 1 ));
1927 //cout << "bndNode UV: " << bndNode->myUV.X()<<" "<<bndNode->myUV.Y()<< endl;
1928 // cout << " tgt: "<< bndNode->myDir[ 0 ].X() <<" "<<bndNode->myDir[ 0 ].Y()<<" | "<<
1929 // bndNode->myDir[ 1 ].X() <<" "<<bndNode->myDir[ 1 ].Y()<<endl;
1930 //cout << "prevNode UV: " << prevNode1->myUV.X()<<" "<<prevNode1->myUV.Y()<<
1931 //" par: " << prevPar << endl;
1932 // cout <<" tgt: " << tgt.X()<<" "<<tgt.Y()<<endl;
1933 //cout << " DIR: "<< dir.X() <<" "<<dir.Y()<<endl;
1935 //cout << "____2next______"<<endl<< "NODE: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<endl;
1936 gp_XY & uv1 = prevNode1->myUV;
1937 gp_XY & uv2 = prevNode2->myUV;
1938 // dir = ( uv2 - uv1 );
1939 // double len = dir.Modulus();
1940 // if ( len > DBL_MIN )
1941 // dir /= len * 0.5;
1942 double r = node->myRatio[ iDir ];
1943 newUV += uv1 * ( 1 - r ) + uv2 * r;
1946 newUV += prevNode1->myUV + dir * step[ iDir ];
1949 prevN[ iDir ] = prevNode1;
1953 if ( !nbComp ) continue;
1956 //cout << "NODE: "<<node->myInitUV.X()<<" "<<node->myInitUV.Y()<<endl;
1958 // check if a quadrangle is not distorted
1960 //int crit = ( nbPrev == 4 ) ? FIX_OLD : CHECK_NEW_IN;
1961 if ( !checkQuads( node, newUV, reversed, FIX_OLD, step[0] + step[1] )) {
1962 //cout <<" newUV: " << node->myUV.X() << " "<<node->myUV.Y() << " nbPrev: "<<nbPrev<< endl;
1963 // cout << "_FIX_INIT_ fixedUV: " << newUV.X() << " "<<newUV.Y() << endl;
1967 internNodes.push_back( node );
1972 static int maxNbIter = 100;
1973 #ifdef DEB_COMPUVBYELASTICISOLINES
1975 bool useNbMoveNode = 0;
1976 static int maxNbNodeMove = 100;
1979 if ( !useNbMoveNode )
1980 maxNbIter = ( maxNbIter < 0 ) ? 100 : -1;
1985 if ( !needIteration) break;
1986 #ifdef DEB_COMPUVBYELASTICISOLINES
1987 if ( nbIter >= maxNbIter ) break;
1990 list < TIsoNode* >::iterator nIt = internNodes.begin();
1991 for ( ; nIt != internNodes.end(); nIt++ ) {
1992 #ifdef DEB_COMPUVBYELASTICISOLINES
1994 cout << nbNodeMove <<" =================================================="<<endl;
1996 TIsoNode * node = *nIt;
2000 for ( iDir = 0; iDir < 2; iDir++ )
2002 gp_XY & uv1 = node->GetNext( iDir, 0 )->myUV;
2003 gp_XY & uv2 = node->GetNext( iDir, 1 )->myUV;
2004 double r = node->myRatio[ iDir ];
2005 loc[ iDir ] = uv1 * ( 1 - r ) + uv2 * r;
2006 // line[ iDir ].SetLocation( loc[ iDir ] );
2007 // line[ iDir ].SetDirection( node->myDir[ iDir ] );
2010 bool ok = true; // <- stupid fix TO AVOID PB OF NODES WITH NULL BND NODES
2011 double locR[2] = { 0, 0 };
2012 for ( iDir = 0; iDir < 2; iDir++ )
2014 const int iCoord = 2 - iDir; // coord changing along an isoline
2015 TIsoNode* bndNode1 = node->GetBoundaryNode( iDir, 0 );
2016 TIsoNode* bndNode2 = node->GetBoundaryNode( iDir, 1 );
2017 if ( !bndNode1 || !bndNode2 ) {
2020 double par1 = bndNode1->myInitUV.Coord( iCoord );
2021 double par2 = node->myInitUV.Coord( iCoord );
2022 double par3 = bndNode2->myInitUV.Coord( iCoord );
2023 double r = ( par2 - par1 ) / ( par3 - par1 );
2024 r = Abs ( r - 0.5 ) * 2.0; // [0,1] - distance from the middle
2025 locR[ iDir ] = ( 1 - r * r ) * 0.25;
2027 //locR[0] = locR[1] = 0.25;
2028 // intersect the 2 lines and move a node
2029 //IntAna2d_AnaIntersection inter( line[0], line[1] );
2030 if ( ok /*inter.IsDone() && inter.NbPoints() ==*/ )
2032 // double intR = 1 - locR[0] - locR[1];
2033 // gp_XY newUV = inter.Point(1).Value().XY();
2034 // if ( !checkQuads( node, newUV, reversed, CHECK_NEW_IN ))
2035 // newUV = ( locR[0] * loc[0] + locR[1] * loc[1] ) / ( 1 - intR );
2037 // newUV = intR * newUV + locR[0] * loc[0] + locR[1] * loc[1];
2038 gp_XY newUV = 0.5 * ( loc[0] + loc[1] );
2039 // avoid parallel isolines intersection
2040 checkQuads( node, newUV, reversed );
2042 maxMove = Max( maxMove, ( newUV - node->myUV ).SquareModulus());
2044 } // intersection found
2045 #ifdef DEB_COMPUVBYELASTICISOLINES
2046 if (useNbMoveNode && ++nbNodeMove >= maxNbNodeMove ) break;
2048 } // loop on internal nodes
2049 #ifdef DEB_COMPUVBYELASTICISOLINES
2050 if (useNbMoveNode && nbNodeMove >= maxNbNodeMove ) break;
2052 } while ( maxMove > 1e-8 && nbIter++ < maxNbIter );
2054 MESSAGE( "compUVByElasticIsolines(): Nb iterations " << nbIter << " dist: " << sqrt( maxMove ));
2056 if ( nbIter >= maxNbIter && sqrt(maxMove) > minUvSize * 0.05 ) {
2057 MESSAGE( "compUVByElasticIsolines() failed: "<<sqrt(maxMove)<<">"<<minUvSize * 0.05);
2058 #ifndef DEB_COMPUVBYELASTICISOLINES
2063 // Set computed UV to points
2065 for ( pIt = thePntToCompute.begin(); pIt != thePntToCompute.end(); pIt++ ) {
2066 TPoint* point = *pIt;
2067 //gp_XY oldUV = point->myUV;
2068 double minDist = DBL_MAX;
2069 list < TIsoNode >::iterator nIt = nodes.begin();
2070 for ( ; nIt != nodes.end(); nIt++ ) {
2071 double dist = ( (*nIt).myInitUV - point->myInitUV ).SquareModulus();
2072 if ( dist < minDist ) {
2074 point->myUV = (*nIt).myUV;
2083 //=======================================================================
2084 //function : setFirstEdge
2085 //purpose : choose the best first edge of theWire; return the summary distance
2086 // between point UV computed by isolines intersection and
2087 // eventual UV got from edge p-curves
2088 //=======================================================================
2090 //#define DBG_SETFIRSTEDGE
2091 double SMESH_Pattern::setFirstEdge (list< TopoDS_Edge > & theWire, int theFirstEdgeID)
2093 int iE, nbEdges = theWire.size();
2097 // Transform UVs computed by iso to fit bnd box of a wire
2099 // max nb of points on an edge
2101 int eID = theFirstEdgeID;
2102 for ( iE = 0; iE < nbEdges; iE++ )
2103 maxNbPnt = Max ( maxNbPnt, getShapePoints( eID++ ).size() );
2105 // compute bnd boxes
2106 TopoDS_Face face = TopoDS::Face( myShape );
2107 Bnd_Box2d bndBox, eBndBox;
2108 eID = theFirstEdgeID;
2109 list< TopoDS_Edge >::iterator eIt;
2110 list< TPoint* >::iterator pIt;
2111 for ( eIt = theWire.begin(); eIt != theWire.end(); eIt++ )
2113 // UV by isos stored in TPoint.myXYZ
2114 list< TPoint* > & ePoints = getShapePoints( eID++ );
2115 for ( pIt = ePoints.begin(); pIt != ePoints.end(); pIt++ ) {
2117 bndBox.Add( gp_Pnt2d( p->myXYZ.X(), p->myXYZ.Y() ));
2119 // UV by an edge p-curve
2121 Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface( *eIt, face, f, l );
2122 double dU = ( l - f ) / ( maxNbPnt - 1 );
2123 for ( int i = 0; i < maxNbPnt; i++ )
2124 eBndBox.Add( C2d->Value( f + i * dU ));
2127 // transform UVs by isos
2128 double minPar[2], maxPar[2], eMinPar[2], eMaxPar[2];
2129 bndBox.Get( minPar[0], minPar[1], maxPar[0], maxPar[1] );
2130 eBndBox.Get( eMinPar[0], eMinPar[1], eMaxPar[0], eMaxPar[1] );
2131 #ifdef DBG_SETFIRSTEDGE
2132 MESSAGE ( "EDGES: X: " << eMinPar[0] << " - " << eMaxPar[0] << " Y: "
2133 << eMinPar[1] << " - " << eMaxPar[1] );
2135 for ( int iC = 1, i = 0; i < 2; iC++, i++ ) // loop on 2 coordinates
2137 double dMin = eMinPar[i] - minPar[i];
2138 double dMax = eMaxPar[i] - maxPar[i];
2139 double dPar = maxPar[i] - minPar[i];
2140 eID = theFirstEdgeID;
2141 for ( iE = 0; iE < nbEdges; iE++ ) // loop on edges of a boundary
2143 list< TPoint* > & ePoints = getShapePoints( eID++ );
2144 for ( pIt = ++ePoints.begin(); pIt != ePoints.end(); pIt++ ) // loop on edge points
2146 double par = (*pIt)->myXYZ.Coord( iC );
2147 double r = ( par - minPar[i] ) / dPar;
2148 par += ( 1 - r ) * dMin + r * dMax;
2149 (*pIt)->myXYZ.SetCoord( iC, par );
2155 double minDist = DBL_MAX;
2156 for ( iE = 0 ; iE < nbEdges; iE++ )
2158 #ifdef DBG_SETFIRSTEDGE
2159 MESSAGE ( " VARIANT " << iE );
2161 // evaluate the distance between UV computed by the 2 methods:
2162 // by isos intersection ( myXYZ ) and by edge p-curves ( myUV )
2164 int eID = theFirstEdgeID;
2165 for ( eIt = theWire.begin(); eIt != theWire.end(); eIt++ )
2167 list< TPoint* > & ePoints = getShapePoints( eID++ );
2168 computeUVOnEdge( *eIt, ePoints );
2169 for ( pIt = ++ePoints.begin(); pIt != ePoints.end(); pIt++ ) {
2171 dist += ( p->myUV - gp_XY( p->myXYZ.X(), p->myXYZ.Y() )).SquareModulus();
2172 #ifdef DBG_SETFIRSTEDGE
2173 MESSAGE ( " ISO : ( " << p->myXYZ.X() << ", "<< p->myXYZ.Y() << " ) PCURVE : ( " <<
2174 p->myUV.X() << ", " << p->myUV.Y() << ") " );
2178 #ifdef DBG_SETFIRSTEDGE
2179 MESSAGE ( "dist -- " << dist );
2181 if ( dist < minDist ) {
2183 eBest = theWire.front();
2185 // check variant with another first edge
2186 theWire.splice( theWire.begin(), theWire, --theWire.end(), theWire.end() );
2188 // put the best first edge to the theWire front
2189 if ( eBest != theWire.front() ) {
2190 eIt = find ( theWire.begin(), theWire.end(), eBest );
2191 theWire.splice( theWire.begin(), theWire, eIt, theWire.end() );
2197 //=======================================================================
2198 //function : sortSameSizeWires
2199 //purpose : sort wires in theWireList from theFromWire until theToWire,
2200 // the wires are set in the order to correspond to the order
2201 // of boundaries; after sorting, edges in the wires are put
2202 // in a good order, point UVs on edges are computed and points
2203 // are appended to theEdgesPointsList
2204 //=======================================================================
2206 bool SMESH_Pattern::sortSameSizeWires (TListOfEdgesList & theWireList,
2207 const TListOfEdgesList::iterator& theFromWire,
2208 const TListOfEdgesList::iterator& theToWire,
2209 const int theFirstEdgeID,
2210 list< list< TPoint* > >& theEdgesPointsList )
2212 TopoDS_Face F = TopoDS::Face( myShape );
2213 int iW, nbWires = 0;
2214 TListOfEdgesList::iterator wlIt = theFromWire;
2215 while ( wlIt++ != theToWire )
2218 // Recompute key-point UVs by isolines intersection,
2219 // compute CG of key-points for each wire and bnd boxes of GCs
2222 gp_XY orig( gp::Origin2d().XY() );
2223 vector< gp_XY > vGcVec( nbWires, orig ), gcVec( nbWires, orig );
2224 Bnd_Box2d bndBox, vBndBox;
2225 int eID = theFirstEdgeID;
2226 list< TopoDS_Edge >::iterator eIt;
2227 for ( iW = 0, wlIt = theFromWire; wlIt != theToWire; wlIt++, iW++ )
2229 list< TopoDS_Edge > & wire = *wlIt;
2230 for ( eIt = wire.begin(); eIt != wire.end(); eIt++ )
2232 list< TPoint* > & ePoints = getShapePoints( eID++ );
2233 TPoint* p = ePoints.front();
2234 if ( !compUVByIsoIntersection( theEdgesPointsList, p->myInitUV, p->myUV, aBool )) {
2235 MESSAGE("cant sortSameSizeWires()");
2238 gcVec[iW] += p->myUV;
2239 bndBox.Add( gp_Pnt2d( p->myUV ));
2240 TopoDS_Vertex V = TopExp::FirstVertex( *eIt, true );
2241 gp_Pnt2d vXY = BRep_Tool::Parameters( V, F );
2242 vGcVec[iW] += vXY.XY();
2244 // keep the computed UV to compare against by setFirstEdge()
2245 p->myXYZ.SetCoord( p->myUV.X(), p->myUV.Y(), 0. );
2247 gcVec[iW] /= nbWires;
2248 vGcVec[iW] /= nbWires;
2249 // cout << " Wire " << iW << " iso: " << gcVec[iW].X() << " " << gcVec[iW].Y() << endl <<
2250 // " \t vertex: " << vGcVec[iW].X() << " " << vGcVec[iW].Y() << endl;
2253 // Transform GCs computed by isos to fit in bnd box of GCs by vertices
2255 double minPar[2], maxPar[2], vMinPar[2], vMaxPar[2];
2256 bndBox.Get( minPar[0], minPar[1], maxPar[0], maxPar[1] );
2257 vBndBox.Get( vMinPar[0], vMinPar[1], vMaxPar[0], vMaxPar[1] );
2258 for ( int iC = 1, i = 0; i < 2; iC++, i++ ) // loop on 2 coordinates
2260 double dMin = vMinPar[i] - minPar[i];
2261 double dMax = vMaxPar[i] - maxPar[i];
2262 double dPar = maxPar[i] - minPar[i];
2263 if ( Abs( dPar ) <= DBL_MIN )
2265 for ( iW = 0; iW < nbWires; iW++ ) { // loop on GCs of wires
2266 double par = gcVec[iW].Coord( iC );
2267 double r = ( par - minPar[i] ) / dPar;
2268 par += ( 1 - r ) * dMin + r * dMax;
2269 gcVec[iW].SetCoord( iC, par );
2273 // Define boundary - wire correspondence by GC closeness
2275 TListOfEdgesList tmpWList;
2276 tmpWList.splice( tmpWList.end(), theWireList, theFromWire, theToWire );
2277 typedef map< int, TListOfEdgesList::iterator > TIntWirePosMap;
2278 TIntWirePosMap bndIndWirePosMap;
2279 vector< bool > bndFound( nbWires, false );
2280 for ( iW = 0, wlIt = tmpWList.begin(); iW < nbWires; iW++, wlIt++ )
2282 // cout << " TRSF Wire " << iW << " iso: " << gcVec[iW].X() << " " << gcVec[iW].Y() << endl <<
2283 // " \t vertex: " << vGcVec[iW].X() << " " << vGcVec[iW].Y() << endl;
2284 double minDist = DBL_MAX;
2285 gp_XY & wGc = vGcVec[ iW ];
2287 for ( int iB = 0; iB < nbWires; iB++ ) {
2288 if ( bndFound[ iB ] ) continue;
2289 double dist = ( wGc - gcVec[ iB ] ).SquareModulus();
2290 if ( dist < minDist ) {
2295 bndFound[ bIndex ] = true;
2296 bndIndWirePosMap.insert( TIntWirePosMap::value_type( bIndex, wlIt ));
2301 TIntWirePosMap::iterator bIndWPosIt = bndIndWirePosMap.begin();
2302 eID = theFirstEdgeID;
2303 for ( ; bIndWPosIt != bndIndWirePosMap.end(); bIndWPosIt++ )
2305 TListOfEdgesList::iterator wirePos = (*bIndWPosIt).second;
2306 list < TopoDS_Edge > & wire = ( *wirePos );
2308 // choose the best first edge of a wire
2309 setFirstEdge( wire, eID );
2311 // compute eventual UV and fill theEdgesPointsList
2312 theEdgesPointsList.push_back( list< TPoint* >() );
2313 list< TPoint* > & edgesPoints = theEdgesPointsList.back();
2314 for ( eIt = wire.begin(); eIt != wire.end(); eIt++ )
2316 list< TPoint* > & ePoints = getShapePoints( eID++ );
2317 computeUVOnEdge( *eIt, ePoints );
2318 edgesPoints.insert( edgesPoints.end(), ePoints.begin(), (--ePoints.end()));
2320 // put wire back to theWireList
2322 theWireList.splice( theToWire, tmpWList, wlIt, wirePos );
2328 //=======================================================================
2330 //purpose : Compute nodes coordinates applying
2331 // the loaded pattern to <theFace>. The first key-point
2332 // will be mapped into <theVertexOnKeyPoint1>
2333 //=======================================================================
2335 bool SMESH_Pattern::Apply (const TopoDS_Face& theFace,
2336 const TopoDS_Vertex& theVertexOnKeyPoint1,
2337 const bool theReverse)
2339 MESSAGE(" ::Apply(face) " );
2340 TopoDS_Face face = theReverse ? TopoDS::Face( theFace.Reversed() ) : theFace;
2341 if ( !setShapeToMesh( face ))
2344 // find points on edges, it fills myNbKeyPntInBoundary
2345 if ( !findBoundaryPoints() )
2348 // Define the edges order so that the first edge starts at
2349 // theVertexOnKeyPoint1
2351 list< TopoDS_Edge > eList;
2352 list< int > nbVertexInWires;
2353 int nbWires = SMESH_Block::GetOrderedEdges( face, theVertexOnKeyPoint1, eList, nbVertexInWires);
2354 if ( !theVertexOnKeyPoint1.IsSame( TopExp::FirstVertex( eList.front(), true )))
2356 MESSAGE( " theVertexOnKeyPoint1 not found in the outer wire ");
2357 return setErrorCode( ERR_APPLF_BAD_VERTEX );
2359 // check nb wires and edges
2360 list< int > l1 = myNbKeyPntInBoundary, l2 = nbVertexInWires;
2361 l1.sort(); l2.sort();
2364 MESSAGE( "Wrong nb vertices in wires" );
2365 return setErrorCode( ERR_APPL_BAD_NB_VERTICES );
2368 // here shapes get IDs, for the outer wire IDs are OK
2369 list<TopoDS_Edge>::iterator elIt = eList.begin();
2370 for ( ; elIt != eList.end(); elIt++ ) {
2371 myShapeIDMap.Add( TopExp::FirstVertex( *elIt, true ));
2372 bool isClosed1 = BRep_Tool::IsClosed( *elIt, theFace );
2373 // BEGIN: jfa for bug 0019943
2376 for (TopExp_Explorer expw (theFace, TopAbs_WIRE); expw.More() && !isClosed1; expw.Next()) {
2377 const TopoDS_Wire& wire = TopoDS::Wire(expw.Current());
2379 for (BRepTools_WireExplorer we (wire, theFace); we.More() && !isClosed1; we.Next()) {
2380 if (we.Current().IsSame(*elIt)) {
2382 if (nbe == 2) isClosed1 = true;
2387 // END: jfa for bug 0019943
2389 myShapeIDMap.Add( TopExp::LastVertex( *elIt, true ));
2391 int nbVertices = myShapeIDMap.Extent();
2393 for ( elIt = eList.begin(); elIt != eList.end(); elIt++ )
2394 myShapeIDMap.Add( *elIt );
2396 myShapeIDMap.Add( face );
2398 if ( myShapeIDToPointsMap.size() != myShapeIDMap.Extent()/* + nbSeamShapes*/ ) {
2399 MESSAGE( myShapeIDToPointsMap.size() <<" != " << myShapeIDMap.Extent());
2400 return setErrorCode( ERR_APPLF_INTERNAL_EEROR );
2403 // points on edges to be used for UV computation of in-face points
2404 list< list< TPoint* > > edgesPointsList;
2405 edgesPointsList.push_back( list< TPoint* >() );
2406 list< TPoint* > * edgesPoints = & edgesPointsList.back();
2407 list< TPoint* >::iterator pIt;
2409 // compute UV of points on the outer wire
2410 int iE, nbEdgesInOuterWire = nbVertexInWires.front();
2411 for (iE = 0, elIt = eList.begin();
2412 iE < nbEdgesInOuterWire && elIt != eList.end();
2415 list< TPoint* > & ePoints = getShapePoints( *elIt );
2417 computeUVOnEdge( *elIt, ePoints );
2418 // collect on-edge points (excluding the last one)
2419 edgesPoints->insert( edgesPoints->end(), ePoints.begin(), --ePoints.end());
2422 // If there are several wires, define the order of edges of inner wires:
2423 // compute UV of inner edge-points using 2 methods: the one for in-face points
2424 // and the one for on-edge points and then choose the best edge order
2425 // by the best correspondance of the 2 results
2428 // compute UV of inner edge-points using the method for in-face points
2429 // and devide eList into a list of separate wires
2431 list< list< TopoDS_Edge > > wireList;
2432 list<TopoDS_Edge>::iterator eIt = elIt;
2433 list<int>::iterator nbEIt = nbVertexInWires.begin();
2434 for ( nbEIt++; nbEIt != nbVertexInWires.end(); nbEIt++ )
2436 int nbEdges = *nbEIt;
2437 wireList.push_back( list< TopoDS_Edge >() );
2438 list< TopoDS_Edge > & wire = wireList.back();
2439 for ( iE = 0 ; iE < nbEdges; eIt++, iE++ )
2441 list< TPoint* > & ePoints = getShapePoints( *eIt );
2442 pIt = ePoints.begin();
2443 for ( pIt++; pIt != ePoints.end(); pIt++ ) {
2445 if ( !compUVByIsoIntersection( edgesPointsList, p->myInitUV, p->myUV, aBool )) {
2446 MESSAGE("cant Apply(face)");
2449 // keep the computed UV to compare against by setFirstEdge()
2450 p->myXYZ.SetCoord( p->myUV.X(), p->myUV.Y(), 0. );
2452 wire.push_back( *eIt );
2455 // remove inner edges from eList
2456 eList.erase( elIt, eList.end() );
2458 // sort wireList by nb edges in a wire
2459 sortBySize< TopoDS_Edge > ( wireList );
2461 // an ID of the first edge of a boundary
2462 int id1 = nbVertices + nbEdgesInOuterWire + 1;
2463 // if ( nbSeamShapes > 0 )
2464 // id1 += 2; // 2 vertices more
2466 // find points - edge correspondence for wires of unique size,
2467 // edge order within a wire should be defined only
2469 list< list< TopoDS_Edge > >::iterator wlIt = wireList.begin();
2470 while ( wlIt != wireList.end() )
2472 list< TopoDS_Edge >& wire = (*wlIt);
2473 int nbEdges = wire.size();
2475 if ( wlIt == wireList.end() || (*wlIt).size() != nbEdges ) // a unique size wire
2477 // choose the best first edge of a wire
2478 setFirstEdge( wire, id1 );
2480 // compute eventual UV and collect on-edge points
2481 edgesPointsList.push_back( list< TPoint* >() );
2482 edgesPoints = & edgesPointsList.back();
2484 for ( eIt = wire.begin(); eIt != wire.end(); eIt++ )
2486 list< TPoint* > & ePoints = getShapePoints( eID++ );
2487 computeUVOnEdge( *eIt, ePoints );
2488 edgesPoints->insert( edgesPoints->end(), ePoints.begin(), (--ePoints.end()));
2494 // find boundary - wire correspondence for several wires of same size
2496 id1 = nbVertices + nbEdgesInOuterWire + 1;
2497 wlIt = wireList.begin();
2498 while ( wlIt != wireList.end() )
2500 int nbSameSize = 0, nbEdges = (*wlIt).size();
2501 list< list< TopoDS_Edge > >::iterator wlIt2 = wlIt;
2503 while ( wlIt2 != wireList.end() && (*wlIt2).size() == nbEdges ) { // a same size wire
2507 if ( nbSameSize > 0 )
2508 if (!sortSameSizeWires(wireList, wlIt, wlIt2, id1, edgesPointsList))
2511 id1 += nbEdges * ( nbSameSize + 1 );
2514 // add well-ordered edges to eList
2516 for ( wlIt = wireList.begin(); wlIt != wireList.end(); wlIt++ )
2518 list< TopoDS_Edge >& wire = (*wlIt);
2519 eList.splice( eList.end(), wire, wire.begin(), wire.end() );
2522 // re-fill myShapeIDMap - all shapes get good IDs
2524 myShapeIDMap.Clear();
2525 for ( elIt = eList.begin(); elIt != eList.end(); elIt++ )
2526 myShapeIDMap.Add( TopExp::FirstVertex( *elIt, true ));
2527 for ( elIt = eList.begin(); elIt != eList.end(); elIt++ )
2528 myShapeIDMap.Add( *elIt );
2529 myShapeIDMap.Add( face );
2531 } // there are inner wires
2533 // Compute XYZ of on-edge points
2535 TopLoc_Location loc;
2536 for ( iE = nbVertices + 1, elIt = eList.begin(); elIt != eList.end(); elIt++ )
2538 BRepAdaptor_Curve C3d( *elIt );
2539 list< TPoint* > & ePoints = getShapePoints( iE++ );
2540 pIt = ePoints.begin();
2541 for ( pIt++; pIt != ePoints.end(); pIt++ )
2543 TPoint* point = *pIt;
2544 point->myXYZ = C3d.Value( point->myU );
2548 // Compute UV and XYZ of in-face points
2550 // try to use a simple algo
2551 list< TPoint* > & fPoints = getShapePoints( face );
2552 bool isDeformed = false;
2553 for ( pIt = fPoints.begin(); !isDeformed && pIt != fPoints.end(); pIt++ )
2554 if ( !compUVByIsoIntersection( edgesPointsList, (*pIt)->myInitUV,
2555 (*pIt)->myUV, isDeformed )) {
2556 MESSAGE("cant Apply(face)");
2559 // try to use a complex algo if it is a difficult case
2560 if ( isDeformed && !compUVByElasticIsolines( edgesPointsList, fPoints ))
2562 for ( ; pIt != fPoints.end(); pIt++ ) // continue with the simple algo
2563 if ( !compUVByIsoIntersection( edgesPointsList, (*pIt)->myInitUV,
2564 (*pIt)->myUV, isDeformed )) {
2565 MESSAGE("cant Apply(face)");
2570 Handle(Geom_Surface) aSurface = BRep_Tool::Surface( face, loc );
2571 const gp_Trsf & aTrsf = loc.Transformation();
2572 for ( pIt = fPoints.begin(); pIt != fPoints.end(); pIt++ )
2574 TPoint * point = *pIt;
2575 point->myXYZ = aSurface->Value( point->myUV.X(), point->myUV.Y() );
2576 if ( !loc.IsIdentity() )
2577 aTrsf.Transforms( point->myXYZ.ChangeCoord() );
2580 myIsComputed = true;
2582 return setErrorCode( ERR_OK );
2585 //=======================================================================
2587 //purpose : Compute nodes coordinates applying
2588 // the loaded pattern to <theFace>. The first key-point
2589 // will be mapped into <theNodeIndexOnKeyPoint1>-th node
2590 //=======================================================================
2592 bool SMESH_Pattern::Apply (const SMDS_MeshFace* theFace,
2593 const int theNodeIndexOnKeyPoint1,
2594 const bool theReverse)
2596 // MESSAGE(" ::Apply(MeshFace) " );
2598 if ( !IsLoaded() ) {
2599 MESSAGE( "Pattern not loaded" );
2600 return setErrorCode( ERR_APPL_NOT_LOADED );
2603 // check nb of nodes
2604 if (theFace->NbNodes() != myNbKeyPntInBoundary.front() ) {
2605 MESSAGE( myKeyPointIDs.size() << " != " << theFace->NbNodes() );
2606 return setErrorCode( ERR_APPL_BAD_NB_VERTICES );
2609 // find points on edges, it fills myNbKeyPntInBoundary
2610 if ( !findBoundaryPoints() )
2613 // check that there are no holes in a pattern
2614 if (myNbKeyPntInBoundary.size() > 1 ) {
2615 return setErrorCode( ERR_APPL_BAD_NB_VERTICES );
2618 // Define the nodes order
2620 list< const SMDS_MeshNode* > nodes;
2621 list< const SMDS_MeshNode* >::iterator n = nodes.end();
2622 SMDS_ElemIteratorPtr noIt = theFace->nodesIterator();
2624 while ( noIt->more() ) {
2625 const SMDS_MeshNode* node = smdsNode( noIt->next() );
2626 nodes.push_back( node );
2627 if ( iSub++ == theNodeIndexOnKeyPoint1 )
2630 if ( n != nodes.end() ) {
2632 if ( n != --nodes.end() )
2633 nodes.splice( nodes.begin(), nodes, ++n, nodes.end() );
2636 else if ( n != nodes.begin() )
2637 nodes.splice( nodes.end(), nodes, nodes.begin(), n );
2639 list< gp_XYZ > xyzList;
2640 myOrderedNodes.resize( theFace->NbNodes() );
2641 for ( iSub = 0, n = nodes.begin(); n != nodes.end(); ++n ) {
2642 xyzList.push_back( gp_XYZ( (*n)->X(), (*n)->Y(), (*n)->Z() ));
2643 myOrderedNodes[ iSub++] = *n;
2646 // Define a face plane
2648 list< gp_XYZ >::iterator xyzIt = xyzList.begin();
2649 gp_Pnt P ( *xyzIt++ );
2650 gp_Vec Vx( P, *xyzIt++ ), N;
2652 N = Vx ^ gp_Vec( P, *xyzIt++ );
2653 } while ( N.SquareMagnitude() <= DBL_MIN && xyzIt != xyzList.end() );
2654 if ( N.SquareMagnitude() <= DBL_MIN )
2655 return setErrorCode( ERR_APPLF_BAD_FACE_GEOM );
2656 gp_Ax2 pos( P, N, Vx );
2658 // Compute UV of key-points on a plane
2659 for ( xyzIt = xyzList.begin(), iSub = 1; xyzIt != xyzList.end(); xyzIt++, iSub++ )
2661 gp_Vec vec ( pos.Location(), *xyzIt );
2662 TPoint* p = getShapePoints( iSub ).front();
2663 p->myUV.SetX( vec * pos.XDirection() );
2664 p->myUV.SetY( vec * pos.YDirection() );
2668 // points on edges to be used for UV computation of in-face points
2669 list< list< TPoint* > > edgesPointsList;
2670 edgesPointsList.push_back( list< TPoint* >() );
2671 list< TPoint* > * edgesPoints = & edgesPointsList.back();
2672 list< TPoint* >::iterator pIt;
2674 // compute UV and XYZ of points on edges
2676 for ( xyzIt = xyzList.begin(); xyzIt != xyzList.end(); iSub++ )
2678 gp_XYZ& xyz1 = *xyzIt++;
2679 gp_XYZ& xyz2 = ( xyzIt != xyzList.end() ) ? *xyzIt : xyzList.front();
2681 list< TPoint* > & ePoints = getShapePoints( iSub );
2682 ePoints.back()->myInitU = 1.0;
2683 list< TPoint* >::const_iterator pIt = ++ePoints.begin();
2684 while ( *pIt != ePoints.back() )
2687 p->myXYZ = xyz1 * ( 1 - p->myInitU ) + xyz2 * p->myInitU;
2688 gp_Vec vec ( pos.Location(), p->myXYZ );
2689 p->myUV.SetX( vec * pos.XDirection() );
2690 p->myUV.SetY( vec * pos.YDirection() );
2692 // collect on-edge points (excluding the last one)
2693 edgesPoints->insert( edgesPoints->end(), ePoints.begin(), --ePoints.end());
2696 // Compute UV and XYZ of in-face points
2698 // try to use a simple algo to compute UV
2699 list< TPoint* > & fPoints = getShapePoints( iSub );
2700 bool isDeformed = false;
2701 for ( pIt = fPoints.begin(); !isDeformed && pIt != fPoints.end(); pIt++ )
2702 if ( !compUVByIsoIntersection( edgesPointsList, (*pIt)->myInitUV,
2703 (*pIt)->myUV, isDeformed )) {
2704 MESSAGE("cant Apply(face)");
2707 // try to use a complex algo if it is a difficult case
2708 if ( isDeformed && !compUVByElasticIsolines( edgesPointsList, fPoints ))
2710 for ( ; pIt != fPoints.end(); pIt++ ) // continue with the simple algo
2711 if ( !compUVByIsoIntersection( edgesPointsList, (*pIt)->myInitUV,
2712 (*pIt)->myUV, isDeformed )) {
2713 MESSAGE("cant Apply(face)");
2718 for ( pIt = fPoints.begin(); pIt != fPoints.end(); pIt++ )
2720 (*pIt)->myXYZ = ElSLib::PlaneValue( (*pIt)->myUV.X(), (*pIt)->myUV.Y(), pos );
2723 myIsComputed = true;
2725 return setErrorCode( ERR_OK );
2728 //=======================================================================
2730 //purpose : Compute nodes coordinates applying
2731 // the loaded pattern to <theFace>. The first key-point
2732 // will be mapped into <theNodeIndexOnKeyPoint1>-th node
2733 //=======================================================================
2735 bool SMESH_Pattern::Apply (SMESH_Mesh* theMesh,
2736 const SMDS_MeshFace* theFace,
2737 const TopoDS_Shape& theSurface,
2738 const int theNodeIndexOnKeyPoint1,
2739 const bool theReverse)
2741 // MESSAGE(" ::Apply(MeshFace) " );
2742 if ( theSurface.IsNull() || theSurface.ShapeType() != TopAbs_FACE ) {
2743 return Apply( theFace, theNodeIndexOnKeyPoint1, theReverse);
2745 const TopoDS_Face& face = TopoDS::Face( theSurface );
2746 TopLoc_Location loc;
2747 Handle(Geom_Surface) surface = BRep_Tool::Surface( face, loc );
2748 const gp_Trsf & aTrsf = loc.Transformation();
2750 if ( !IsLoaded() ) {
2751 MESSAGE( "Pattern not loaded" );
2752 return setErrorCode( ERR_APPL_NOT_LOADED );
2755 // check nb of nodes
2756 if (theFace->NbNodes() != myNbKeyPntInBoundary.front() ) {
2757 MESSAGE( myKeyPointIDs.size() << " != " << theFace->NbNodes() );
2758 return setErrorCode( ERR_APPL_BAD_NB_VERTICES );
2761 // find points on edges, it fills myNbKeyPntInBoundary
2762 if ( !findBoundaryPoints() )
2765 // check that there are no holes in a pattern
2766 if (myNbKeyPntInBoundary.size() > 1 ) {
2767 return setErrorCode( ERR_APPL_BAD_NB_VERTICES );
2770 // Define the nodes order
2772 list< const SMDS_MeshNode* > nodes;
2773 list< const SMDS_MeshNode* >::iterator n = nodes.end();
2774 SMDS_ElemIteratorPtr noIt = theFace->nodesIterator();
2776 while ( noIt->more() ) {
2777 const SMDS_MeshNode* node = smdsNode( noIt->next() );
2778 nodes.push_back( node );
2779 if ( iSub++ == theNodeIndexOnKeyPoint1 )
2782 if ( n != nodes.end() ) {
2784 if ( n != --nodes.end() )
2785 nodes.splice( nodes.begin(), nodes, ++n, nodes.end() );
2788 else if ( n != nodes.begin() )
2789 nodes.splice( nodes.end(), nodes, nodes.begin(), n );
2792 // find a node not on a seam edge, if necessary
2793 SMESH_MesherHelper helper( *theMesh );
2794 helper.SetSubShape( theSurface );
2795 const SMDS_MeshNode* inFaceNode = 0;
2796 if ( helper.GetNodeUVneedInFaceNode() )
2798 SMESH_MeshEditor editor( theMesh );
2799 for ( n = nodes.begin(); ( !inFaceNode && n != nodes.end()); ++n ) {
2800 int shapeID = editor.FindShape( *n );
2802 return Apply( theFace, theNodeIndexOnKeyPoint1, theReverse);
2803 if ( !helper.IsSeamShape( shapeID ))
2808 // Set UV of key-points (i.e. of nodes of theFace )
2809 vector< gp_XY > keyUV( theFace->NbNodes() );
2810 myOrderedNodes.resize( theFace->NbNodes() );
2811 for ( iSub = 1, n = nodes.begin(); n != nodes.end(); ++n, ++iSub )
2813 TPoint* p = getShapePoints( iSub ).front();
2814 p->myUV = helper.GetNodeUV( face, *n, inFaceNode );
2815 p->myXYZ = gp_XYZ( (*n)->X(), (*n)->Y(), (*n)->Z() );
2817 keyUV[ iSub-1 ] = p->myUV;
2818 myOrderedNodes[ iSub-1 ] = *n;
2821 // points on edges to be used for UV computation of in-face points
2822 list< list< TPoint* > > edgesPointsList;
2823 edgesPointsList.push_back( list< TPoint* >() );
2824 list< TPoint* > * edgesPoints = & edgesPointsList.back();
2825 list< TPoint* >::iterator pIt;
2827 // compute UV and XYZ of points on edges
2829 for ( int i = 0; i < myOrderedNodes.size(); ++i, ++iSub )
2831 gp_XY& uv1 = keyUV[ i ];
2832 gp_XY& uv2 = ( i+1 < keyUV.size() ) ? keyUV[ i+1 ] : keyUV[ 0 ];
2834 list< TPoint* > & ePoints = getShapePoints( iSub );
2835 ePoints.back()->myInitU = 1.0;
2836 list< TPoint* >::const_iterator pIt = ++ePoints.begin();
2837 while ( *pIt != ePoints.back() )
2840 p->myUV = uv1 * ( 1 - p->myInitU ) + uv2 * p->myInitU;
2841 p->myXYZ = surface->Value( p->myUV.X(), p->myUV.Y() );
2842 if ( !loc.IsIdentity() )
2843 aTrsf.Transforms( p->myXYZ.ChangeCoord() );
2845 // collect on-edge points (excluding the last one)
2846 edgesPoints->insert( edgesPoints->end(), ePoints.begin(), --ePoints.end());
2849 // Compute UV and XYZ of in-face points
2851 // try to use a simple algo to compute UV
2852 list< TPoint* > & fPoints = getShapePoints( iSub );
2853 bool isDeformed = false;
2854 for ( pIt = fPoints.begin(); !isDeformed && pIt != fPoints.end(); pIt++ )
2855 if ( !compUVByIsoIntersection( edgesPointsList, (*pIt)->myInitUV,
2856 (*pIt)->myUV, isDeformed )) {
2857 MESSAGE("cant Apply(face)");
2860 // try to use a complex algo if it is a difficult case
2861 if ( isDeformed && !compUVByElasticIsolines( edgesPointsList, fPoints ))
2863 for ( ; pIt != fPoints.end(); pIt++ ) // continue with the simple algo
2864 if ( !compUVByIsoIntersection( edgesPointsList, (*pIt)->myInitUV,
2865 (*pIt)->myUV, isDeformed )) {
2866 MESSAGE("cant Apply(face)");
2871 for ( pIt = fPoints.begin(); pIt != fPoints.end(); pIt++ )
2873 TPoint * point = *pIt;
2874 point->myXYZ = surface->Value( point->myUV.X(), point->myUV.Y() );
2875 if ( !loc.IsIdentity() )
2876 aTrsf.Transforms( point->myXYZ.ChangeCoord() );
2879 myIsComputed = true;
2881 return setErrorCode( ERR_OK );
2884 //=======================================================================
2885 //function : undefinedXYZ
2887 //=======================================================================
2889 static const gp_XYZ& undefinedXYZ()
2891 static gp_XYZ xyz( 1.e100, 0., 0. );
2895 //=======================================================================
2896 //function : isDefined
2898 //=======================================================================
2900 inline static bool isDefined(const gp_XYZ& theXYZ)
2902 return theXYZ.X() < 1.e100;
2905 //=======================================================================
2907 //purpose : Compute nodes coordinates applying
2908 // the loaded pattern to <theFaces>. The first key-point
2909 // will be mapped into <theNodeIndexOnKeyPoint1>-th node
2910 //=======================================================================
2912 bool SMESH_Pattern::Apply (SMESH_Mesh* theMesh,
2913 std::set<const SMDS_MeshFace*>& theFaces,
2914 const int theNodeIndexOnKeyPoint1,
2915 const bool theReverse)
2917 MESSAGE(" ::Apply(set<MeshFace>) " );
2919 if ( !IsLoaded() ) {
2920 MESSAGE( "Pattern not loaded" );
2921 return setErrorCode( ERR_APPL_NOT_LOADED );
2924 // find points on edges, it fills myNbKeyPntInBoundary
2925 if ( !findBoundaryPoints() )
2928 // check that there are no holes in a pattern
2929 if (myNbKeyPntInBoundary.size() > 1 ) {
2930 return setErrorCode( ERR_APPL_BAD_NB_VERTICES );
2935 myElemXYZIDs.clear();
2936 myXYZIdToNodeMap.clear();
2938 myIdsOnBoundary.clear();
2939 myReverseConnectivity.clear();
2941 myXYZ.resize( myPoints.size() * theFaces.size(), undefinedXYZ() );
2942 myElements.reserve( theFaces.size() );
2944 // to find point index
2945 map< TPoint*, int > pointIndex;
2946 for ( int i = 0; i < myPoints.size(); i++ )
2947 pointIndex.insert( make_pair( & myPoints[ i ], i ));
2949 int ind1 = 0; // lowest point index for a face
2954 // SMESH_MeshEditor editor( theMesh );
2956 // apply to each face in theFaces set
2957 set<const SMDS_MeshFace*>::iterator face = theFaces.begin();
2958 for ( ; face != theFaces.end(); ++face )
2960 // int curShapeId = editor.FindShape( *face );
2961 // if ( curShapeId != shapeID ) {
2962 // if ( curShapeId )
2963 // shape = theMesh->GetMeshDS()->IndexToShape( curShapeId );
2966 // shapeID = curShapeId;
2969 if ( shape.IsNull() )
2970 ok = Apply( *face, theNodeIndexOnKeyPoint1, theReverse );
2972 ok = Apply( theMesh, *face, shape, theNodeIndexOnKeyPoint1, theReverse );
2974 MESSAGE( "Failed on " << *face );
2977 myElements.push_back( *face );
2979 // store computed points belonging to elements
2980 list< TElemDef >::iterator ll = myElemPointIDs.begin();
2981 for ( ; ll != myElemPointIDs.end(); ++ll )
2983 myElemXYZIDs.push_back(TElemDef());
2984 TElemDef& xyzIds = myElemXYZIDs.back();
2985 TElemDef& pIds = *ll;
2986 for ( TElemDef::iterator id = pIds.begin(); id != pIds.end(); id++ ) {
2987 int pIndex = *id + ind1;
2988 xyzIds.push_back( pIndex );
2989 myXYZ[ pIndex ] = myPoints[ *id ].myXYZ.XYZ();
2990 myReverseConnectivity[ pIndex ].push_back( & xyzIds );
2993 // put points on links to myIdsOnBoundary,
2994 // they will be used to sew new elements on adjacent refined elements
2995 int nbNodes = (*face)->NbNodes(), eID = nbNodes + 1;
2996 for ( int i = 0; i < nbNodes; i++ )
2998 list< TPoint* > & linkPoints = getShapePoints( eID++ );
2999 const SMDS_MeshNode* n1 = myOrderedNodes[ i ];
3000 const SMDS_MeshNode* n2 = myOrderedNodes[ i + 1 == nbNodes ? 0 : i + 1 ];
3001 // make a link and a node set
3002 TNodeSet linkSet, node1Set;
3003 linkSet.insert( n1 );
3004 linkSet.insert( n2 );
3005 node1Set.insert( n1 );
3006 list< TPoint* >::iterator p = linkPoints.begin();
3008 // map the first link point to n1
3009 int nId = pointIndex[ *p ] + ind1;
3010 myXYZIdToNodeMap[ nId ] = n1;
3011 list< list< int > >& groups = myIdsOnBoundary[ node1Set ];
3012 groups.push_back(list< int > ());
3013 groups.back().push_back( nId );
3015 // add the linkSet to the map
3016 list< list< int > >& groups = myIdsOnBoundary[ linkSet ];
3017 groups.push_back(list< int > ());
3018 list< int >& indList = groups.back();
3019 // add points to the map excluding the end points
3020 for ( p++; *p != linkPoints.back(); p++ )
3021 indList.push_back( pointIndex[ *p ] + ind1 );
3023 ind1 += myPoints.size();
3026 return !myElemXYZIDs.empty();
3029 //=======================================================================
3031 //purpose : Compute nodes coordinates applying
3032 // the loaded pattern to <theVolumes>. The (0,0,0) key-point
3033 // will be mapped into <theNode000Index>-th node. The
3034 // (0,0,1) key-point will be mapped into <theNode000Index>-th
3036 //=======================================================================
3038 bool SMESH_Pattern::Apply (std::set<const SMDS_MeshVolume*> & theVolumes,
3039 const int theNode000Index,
3040 const int theNode001Index)
3042 MESSAGE(" ::Apply(set<MeshVolumes>) " );
3044 if ( !IsLoaded() ) {
3045 MESSAGE( "Pattern not loaded" );
3046 return setErrorCode( ERR_APPL_NOT_LOADED );
3049 // bind ID to points
3050 if ( !findBoundaryPoints() )
3053 // check that there are no holes in a pattern
3054 if (myNbKeyPntInBoundary.size() > 1 ) {
3055 return setErrorCode( ERR_APPL_BAD_NB_VERTICES );
3060 myElemXYZIDs.clear();
3061 myXYZIdToNodeMap.clear();
3063 myIdsOnBoundary.clear();
3064 myReverseConnectivity.clear();
3066 myXYZ.resize( myPoints.size() * theVolumes.size(), undefinedXYZ() );
3067 myElements.reserve( theVolumes.size() );
3069 // to find point index
3070 map< TPoint*, int > pointIndex;
3071 for ( int i = 0; i < myPoints.size(); i++ )
3072 pointIndex.insert( make_pair( & myPoints[ i ], i ));
3074 int ind1 = 0; // lowest point index for an element
3076 // apply to each element in theVolumes set
3077 set<const SMDS_MeshVolume*>::iterator vol = theVolumes.begin();
3078 for ( ; vol != theVolumes.end(); ++vol )
3080 if ( !Apply( *vol, theNode000Index, theNode001Index )) {
3081 MESSAGE( "Failed on " << *vol );
3084 myElements.push_back( *vol );
3086 // store computed points belonging to elements
3087 list< TElemDef >::iterator ll = myElemPointIDs.begin();
3088 for ( ; ll != myElemPointIDs.end(); ++ll )
3090 myElemXYZIDs.push_back(TElemDef());
3091 TElemDef& xyzIds = myElemXYZIDs.back();
3092 TElemDef& pIds = *ll;
3093 for ( TElemDef::iterator id = pIds.begin(); id != pIds.end(); id++ ) {
3094 int pIndex = *id + ind1;
3095 xyzIds.push_back( pIndex );
3096 myXYZ[ pIndex ] = myPoints[ *id ].myXYZ.XYZ();
3097 myReverseConnectivity[ pIndex ].push_back( & xyzIds );
3100 // put points on edges and faces to myIdsOnBoundary,
3101 // they will be used to sew new elements on adjacent refined elements
3102 for ( int Id = SMESH_Block::ID_V000; Id <= SMESH_Block::ID_F1yz; Id++ )
3104 // make a set of sub-points
3106 vector< int > subIDs;
3107 if ( SMESH_Block::IsVertexID( Id )) {
3108 subNodes.insert( myOrderedNodes[ Id - 1 ]);
3110 else if ( SMESH_Block::IsEdgeID( Id )) {
3111 SMESH_Block::GetEdgeVertexIDs( Id, subIDs );
3112 subNodes.insert( myOrderedNodes[ subIDs.front() - 1 ]);
3113 subNodes.insert( myOrderedNodes[ subIDs.back() - 1 ]);
3116 SMESH_Block::GetFaceEdgesIDs( Id, subIDs );
3117 int e1 = subIDs[ 0 ], e2 = subIDs[ 1 ];
3118 SMESH_Block::GetEdgeVertexIDs( e1, subIDs );
3119 subNodes.insert( myOrderedNodes[ subIDs.front() - 1 ]);
3120 subNodes.insert( myOrderedNodes[ subIDs.back() - 1 ]);
3121 SMESH_Block::GetEdgeVertexIDs( e2, subIDs );
3122 subNodes.insert( myOrderedNodes[ subIDs.front() - 1 ]);
3123 subNodes.insert( myOrderedNodes[ subIDs.back() - 1 ]);
3126 list< TPoint* > & points = getShapePoints( Id );
3127 list< TPoint* >::iterator p = points.begin();
3128 list< list< int > >& groups = myIdsOnBoundary[ subNodes ];
3129 groups.push_back(list< int > ());
3130 list< int >& indList = groups.back();
3131 for ( ; p != points.end(); p++ )
3132 indList.push_back( pointIndex[ *p ] + ind1 );
3133 if ( subNodes.size() == 1 ) // vertex case
3134 myXYZIdToNodeMap[ indList.back() ] = myOrderedNodes[ Id - 1 ];
3136 ind1 += myPoints.size();
3139 return !myElemXYZIDs.empty();
3142 //=======================================================================
3144 //purpose : Create a pattern from the mesh built on <theBlock>
3145 //=======================================================================
3147 bool SMESH_Pattern::Load (SMESH_Mesh* theMesh,
3148 const TopoDS_Shell& theBlock)
3150 MESSAGE(" ::Load(volume) " );
3153 SMESHDS_SubMesh * aSubMesh;
3155 // load shapes in myShapeIDMap
3157 TopoDS_Vertex v1, v2;
3158 if ( !block.LoadBlockShapes( theBlock, v1, v2, myShapeIDMap ))
3159 return setErrorCode( ERR_LOADV_BAD_SHAPE );
3162 int nbNodes = 0, shapeID;
3163 for ( shapeID = 1; shapeID <= myShapeIDMap.Extent(); shapeID++ )
3165 const TopoDS_Shape& S = myShapeIDMap( shapeID );
3166 aSubMesh = getSubmeshWithElements( theMesh, S );
3168 nbNodes += aSubMesh->NbNodes();
3170 myPoints.resize( nbNodes );
3172 // load U of points on edges
3173 TNodePointIDMap nodePointIDMap;
3175 for ( shapeID = 1; shapeID <= myShapeIDMap.Extent(); shapeID++ )
3177 const TopoDS_Shape& S = myShapeIDMap( shapeID );
3178 list< TPoint* > & shapePoints = getShapePoints( shapeID );
3179 aSubMesh = getSubmeshWithElements( theMesh, S );
3180 if ( ! aSubMesh ) continue;
3181 SMDS_NodeIteratorPtr nIt = aSubMesh->GetNodes();
3182 if ( !nIt->more() ) continue;
3184 // store a node and a point
3185 while ( nIt->more() ) {
3186 const SMDS_MeshNode* node = smdsNode( nIt->next() );
3187 nodePointIDMap.insert( make_pair( node, iPoint ));
3188 if ( block.IsVertexID( shapeID ))
3189 myKeyPointIDs.push_back( iPoint );
3190 TPoint* p = & myPoints[ iPoint++ ];
3191 shapePoints.push_back( p );
3192 p->myXYZ.SetCoord( node->X(), node->Y(), node->Z() );
3193 p->myInitXYZ.SetCoord( 0,0,0 );
3195 list< TPoint* >::iterator pIt = shapePoints.begin();
3198 switch ( S.ShapeType() )
3203 for ( ; pIt != shapePoints.end(); pIt++ ) {
3204 double * coef = block.GetShapeCoef( shapeID );
3205 for ( int iCoord = 1; iCoord <= 3; iCoord++ )
3206 if ( coef[ iCoord - 1] > 0 )
3207 (*pIt)->myInitXYZ.SetCoord( iCoord, 1. );
3209 if ( S.ShapeType() == TopAbs_VERTEX )
3212 const TopoDS_Edge& edge = TopoDS::Edge( S );
3214 BRep_Tool::Range( edge, f, l );
3215 int iCoord = SMESH_Block::GetCoordIndOnEdge( shapeID );
3216 bool isForward = SMESH_Block::IsForwardEdge( edge, myShapeIDMap );
3217 pIt = shapePoints.begin();
3218 nIt = aSubMesh->GetNodes();
3219 for ( ; nIt->more(); pIt++ )
3221 const SMDS_MeshNode* node = smdsNode( nIt->next() );
3222 const SMDS_EdgePosition* epos =
3223 static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
3224 double u = ( epos->GetUParameter() - f ) / ( l - f );
3225 (*pIt)->myInitXYZ.SetCoord( iCoord, isForward ? u : 1 - u );
3230 for ( ; pIt != shapePoints.end(); pIt++ )
3232 if ( !block.ComputeParameters( (*pIt)->myXYZ, (*pIt)->myInitXYZ, shapeID )) {
3233 MESSAGE( "!block.ComputeParameters()" );
3234 return setErrorCode( ERR_LOADV_COMPUTE_PARAMS );
3238 } // loop on block sub-shapes
3242 aSubMesh = getSubmeshWithElements( theMesh, theBlock );
3245 SMDS_ElemIteratorPtr elemIt = aSubMesh->GetElements();
3246 while ( elemIt->more() ) {
3247 SMDS_ElemIteratorPtr nIt = elemIt->next()->nodesIterator();
3248 myElemPointIDs.push_back( TElemDef() );
3249 TElemDef& elemPoints = myElemPointIDs.back();
3250 while ( nIt->more() )
3251 elemPoints.push_back( nodePointIDMap[ nIt->next() ]);
3255 myIsBoundaryPointsFound = true;
3257 return setErrorCode( ERR_OK );
3260 //=======================================================================
3261 //function : getSubmeshWithElements
3262 //purpose : return submesh containing elements bound to theBlock in theMesh
3263 //=======================================================================
3265 SMESHDS_SubMesh * SMESH_Pattern::getSubmeshWithElements(SMESH_Mesh* theMesh,
3266 const TopoDS_Shape& theShape)
3268 SMESHDS_SubMesh * aSubMesh = theMesh->GetMeshDS()->MeshElements( theShape );
3269 if ( aSubMesh && ( aSubMesh->GetElements()->more() || aSubMesh->GetNodes()->more() ))
3272 if ( theShape.ShapeType() == TopAbs_SHELL )
3274 // look for submesh of VOLUME
3275 TopTools_ListIteratorOfListOfShape it( theMesh->GetAncestors( theShape ));
3276 for (; it.More(); it.Next()) {
3277 aSubMesh = theMesh->GetMeshDS()->MeshElements( it.Value() );
3278 if ( aSubMesh && ( aSubMesh->GetElements()->more() || aSubMesh->GetNodes()->more() ))
3286 //=======================================================================
3288 //purpose : Compute nodes coordinates applying
3289 // the loaded pattern to <theBlock>. The (0,0,0) key-point
3290 // will be mapped into <theVertex000>. The (0,0,1)
3291 // fifth key-point will be mapped into <theVertex001>.
3292 //=======================================================================
3294 bool SMESH_Pattern::Apply (const TopoDS_Shell& theBlock,
3295 const TopoDS_Vertex& theVertex000,
3296 const TopoDS_Vertex& theVertex001)
3298 MESSAGE(" ::Apply(volume) " );
3300 if (!findBoundaryPoints() || // bind ID to points
3301 !setShapeToMesh( theBlock )) // check theBlock is a suitable shape
3304 SMESH_Block block; // bind ID to shape
3305 if (!block.LoadBlockShapes( theBlock, theVertex000, theVertex001, myShapeIDMap ))
3306 return setErrorCode( ERR_APPLV_BAD_SHAPE );
3308 // compute XYZ of points on shapes
3310 for ( int shapeID = 1; shapeID <= myShapeIDMap.Extent(); shapeID++ )
3312 list< TPoint* > & shapePoints = getShapePoints( shapeID );
3313 list< TPoint* >::iterator pIt = shapePoints.begin();
3314 const TopoDS_Shape& S = myShapeIDMap( shapeID );
3315 switch ( S.ShapeType() )
3317 case TopAbs_VERTEX: {
3319 for ( ; pIt != shapePoints.end(); pIt++ )
3320 block.VertexPoint( shapeID, (*pIt)->myXYZ.ChangeCoord() );
3325 for ( ; pIt != shapePoints.end(); pIt++ )
3326 block.EdgePoint( shapeID, (*pIt)->myInitXYZ, (*pIt)->myXYZ.ChangeCoord() );
3331 for ( ; pIt != shapePoints.end(); pIt++ )
3332 block.FacePoint( shapeID, (*pIt)->myInitXYZ, (*pIt)->myXYZ.ChangeCoord() );
3336 for ( ; pIt != shapePoints.end(); pIt++ )
3337 block.ShellPoint( (*pIt)->myInitXYZ, (*pIt)->myXYZ.ChangeCoord() );
3339 } // loop on block sub-shapes
3341 myIsComputed = true;
3343 return setErrorCode( ERR_OK );
3346 //=======================================================================
3348 //purpose : Compute nodes coordinates applying
3349 // the loaded pattern to <theVolume>. The (0,0,0) key-point
3350 // will be mapped into <theNode000Index>-th node. The
3351 // (0,0,1) key-point will be mapped into <theNode000Index>-th
3353 //=======================================================================
3355 bool SMESH_Pattern::Apply (const SMDS_MeshVolume* theVolume,
3356 const int theNode000Index,
3357 const int theNode001Index)
3359 //MESSAGE(" ::Apply(MeshVolume) " );
3361 if (!findBoundaryPoints()) // bind ID to points
3364 SMESH_Block block; // bind ID to shape
3365 if (!block.LoadMeshBlock( theVolume, theNode000Index, theNode001Index, myOrderedNodes ))
3366 return setErrorCode( ERR_APPLV_BAD_SHAPE );
3367 // compute XYZ of points on shapes
3369 for ( int ID = SMESH_Block::ID_V000; ID <= SMESH_Block::ID_Shell; ID++ )
3371 list< TPoint* > & shapePoints = getShapePoints( ID );
3372 list< TPoint* >::iterator pIt = shapePoints.begin();
3374 if ( block.IsVertexID( ID ))
3375 for ( ; pIt != shapePoints.end(); pIt++ ) {
3376 block.VertexPoint( ID, (*pIt)->myXYZ.ChangeCoord() );
3378 else if ( block.IsEdgeID( ID ))
3379 for ( ; pIt != shapePoints.end(); pIt++ ) {
3380 block.EdgePoint( ID, (*pIt)->myInitXYZ, (*pIt)->myXYZ.ChangeCoord() );
3382 else if ( block.IsFaceID( ID ))
3383 for ( ; pIt != shapePoints.end(); pIt++ ) {
3384 block.FacePoint( ID, (*pIt)->myInitXYZ, (*pIt)->myXYZ.ChangeCoord() );
3387 for ( ; pIt != shapePoints.end(); pIt++ )
3388 block.ShellPoint( (*pIt)->myInitXYZ, (*pIt)->myXYZ.ChangeCoord() );
3389 } // loop on block sub-shapes
3391 myIsComputed = true;
3393 return setErrorCode( ERR_OK );
3396 //=======================================================================
3397 //function : mergePoints
3398 //purpose : Merge XYZ on edges and/or faces.
3399 //=======================================================================
3401 void SMESH_Pattern::mergePoints (const bool uniteGroups)
3403 map< TNodeSet, list< list< int > > >::iterator idListIt = myIdsOnBoundary.begin();
3404 for ( ; idListIt != myIdsOnBoundary.end(); idListIt++ )
3406 list<list< int > >& groups = idListIt->second;
3407 if ( groups.size() < 2 )
3411 const TNodeSet& nodes = idListIt->first;
3412 double tol2 = 1.e-10;
3413 if ( nodes.size() > 1 ) {
3415 TNodeSet::const_iterator n = nodes.begin();
3416 for ( ; n != nodes.end(); ++n )
3417 box.Add( gp_Pnt( (*n)->X(), (*n)->Y(), (*n)->Z() ));
3418 double x, y, z, X, Y, Z;
3419 box.Get( x, y, z, X, Y, Z );
3420 gp_Pnt p( x, y, z ), P( X, Y, Z );
3421 tol2 = 1.e-4 * p.SquareDistance( P );
3424 // to unite groups on link
3425 bool unite = ( uniteGroups && nodes.size() == 2 );
3426 map< double, int > distIndMap;
3427 const SMDS_MeshNode* node = *nodes.begin();
3428 gp_Pnt P( node->X(), node->Y(), node->Z() );
3430 // compare points, replace indices
3432 list< int >::iterator ind1, ind2;
3433 list< list< int > >::iterator grpIt1, grpIt2;
3434 for ( grpIt1 = groups.begin(); grpIt1 != groups.end(); grpIt1++ )
3436 list< int >& indices1 = *grpIt1;
3438 for ( grpIt2++; grpIt2 != groups.end(); grpIt2++ )
3440 list< int >& indices2 = *grpIt2;
3441 for ( ind1 = indices1.begin(); ind1 != indices1.end(); ind1++ )
3443 gp_XYZ& p1 = myXYZ[ *ind1 ];
3444 ind2 = indices2.begin();
3445 while ( ind2 != indices2.end() )
3447 gp_XYZ& p2 = myXYZ[ *ind2 ];
3448 //MESSAGE("COMP: " << *ind1 << " " << *ind2 << " X: " << p2.X() << " tol2: " << tol2);
3449 if ( ( p1 - p2 ).SquareModulus() <= tol2 )
3451 ASSERT( myReverseConnectivity.find( *ind2 ) != myReverseConnectivity.end() );
3452 list< TElemDef* > & elemXYZIDsList = myReverseConnectivity[ *ind2 ];
3453 list< TElemDef* >::iterator elemXYZIDs = elemXYZIDsList.begin();
3454 for ( ; elemXYZIDs != elemXYZIDsList.end(); elemXYZIDs++ )
3456 //MESSAGE( " Replace " << *ind2 << " with " << *ind1 );
3457 myXYZ[ *ind2 ] = undefinedXYZ();
3458 replace( (*elemXYZIDs)->begin(), (*elemXYZIDs)->end(), *ind2, *ind1 );
3460 ind2 = indices2.erase( ind2 );
3467 if ( unite ) { // sort indices using distIndMap
3468 for ( ind1 = indices1.begin(); ind1 != indices1.end(); ind1++ )
3470 ASSERT( isDefined( myXYZ[ *ind1 ] ));
3471 double dist = P.SquareDistance( myXYZ[ *ind1 ]);
3472 distIndMap.insert( make_pair( dist, *ind1 ));
3476 if ( unite ) { // put all sorted indices into the first group
3477 list< int >& g = groups.front();
3479 map< double, int >::iterator dist_ind = distIndMap.begin();
3480 for ( ; dist_ind != distIndMap.end(); dist_ind++ )
3481 g.push_back( dist_ind->second );
3483 } // loop on myIdsOnBoundary
3486 //=======================================================================
3487 //function : makePolyElements
3488 //purpose : prepare intermediate data to create Polygons and Polyhedrons
3489 //=======================================================================
3491 void SMESH_Pattern::
3492 makePolyElements(const vector< const SMDS_MeshNode* >& theNodes,
3493 const bool toCreatePolygons,
3494 const bool toCreatePolyedrs)
3496 myPolyElemXYZIDs.clear();
3497 myPolyElems.clear();
3498 myPolyElems.reserve( myIdsOnBoundary.size() );
3500 // make a set of refined elements
3501 TIDSortedElemSet avoidSet, elemSet;
3502 std::vector<const SMDS_MeshElement*>::iterator itv = myElements.begin();
3503 for(; itv!=myElements.end(); itv++) {
3504 const SMDS_MeshElement* el = (*itv);
3505 avoidSet.insert( el );
3507 //avoidSet.insert( myElements.begin(), myElements.end() );
3509 map< TNodeSet, list< list< int > > >::iterator indListIt, nn_IdList;
3511 if ( toCreatePolygons )
3513 int lastFreeId = myXYZ.size();
3515 // loop on links of refined elements
3516 indListIt = myIdsOnBoundary.begin();
3517 for ( ; indListIt != myIdsOnBoundary.end(); indListIt++ )
3519 const TNodeSet & linkNodes = indListIt->first;
3520 if ( linkNodes.size() != 2 )
3521 continue; // skip face
3522 const SMDS_MeshNode* n1 = * linkNodes.begin();
3523 const SMDS_MeshNode* n2 = * linkNodes.rbegin();
3525 list<list< int > >& idGroups = indListIt->second; // ids of nodes to build
3526 if ( idGroups.empty() || idGroups.front().empty() )
3529 // find not refined face having n1-n2 link
3533 const SMDS_MeshElement* face =
3534 SMESH_MeshEditor::FindFaceInSet( n1, n2, elemSet, avoidSet );
3537 avoidSet.insert ( face );
3538 myPolyElems.push_back( face );
3540 // some links of <face> are split;
3541 // make list of xyz for <face>
3542 myPolyElemXYZIDs.push_back(TElemDef());
3543 TElemDef & faceNodeIds = myPolyElemXYZIDs.back();
3544 // loop on links of a <face>
3545 SMDS_ElemIteratorPtr nIt = face->nodesIterator();
3546 int i = 0, nbNodes = face->NbNodes();
3547 vector<const SMDS_MeshNode*> nodes( nbNodes + 1 );
3548 while ( nIt->more() )
3549 nodes[ i++ ] = smdsNode( nIt->next() );
3550 nodes[ i ] = nodes[ 0 ];
3551 for ( i = 0; i < nbNodes; ++i )
3553 // look for point mapped on a link
3554 TNodeSet faceLinkNodes;
3555 faceLinkNodes.insert( nodes[ i ] );
3556 faceLinkNodes.insert( nodes[ i + 1 ] );
3557 if ( faceLinkNodes == linkNodes )
3558 nn_IdList = indListIt;
3560 nn_IdList = myIdsOnBoundary.find( faceLinkNodes );
3561 // add face point ids
3562 faceNodeIds.push_back( ++lastFreeId );
3563 myXYZIdToNodeMap.insert( make_pair( lastFreeId, nodes[ i ]));
3564 if ( nn_IdList != myIdsOnBoundary.end() )
3566 // there are points mapped on a link
3567 list< int >& mappedIds = nn_IdList->second.front();
3568 if ( isReversed( nodes[ i ], mappedIds ))
3569 faceNodeIds.insert (faceNodeIds.end(),mappedIds.rbegin(), mappedIds.rend() );
3571 faceNodeIds.insert (faceNodeIds.end(),mappedIds.begin(), mappedIds.end() );
3573 } // loop on links of a <face>
3579 if ( myIs2D && idGroups.size() > 1 ) {
3581 // sew new elements on 2 refined elements sharing n1-n2 link
3583 list< int >& idsOnLink = idGroups.front();
3584 // temporarily add ids of link nodes to idsOnLink
3585 bool rev = isReversed( n1, idsOnLink );
3586 for ( int i = 0; i < 2; ++i )
3589 nodeSet.insert( i ? n2 : n1 );
3590 ASSERT( myIdsOnBoundary.find( nodeSet ) != myIdsOnBoundary.end() );
3591 list<list< int > >& groups = myIdsOnBoundary[ nodeSet ];
3592 int nodeId = groups.front().front();
3594 if ( rev ) append = !append;
3596 idsOnLink.push_back( nodeId );
3598 idsOnLink.push_front( nodeId );
3600 list< int >::iterator id = idsOnLink.begin();
3601 for ( ; id != idsOnLink.end(); ++id ) // loop on XYZ ids on a link
3603 list< TElemDef* >& elemDefs = myReverseConnectivity[ *id ]; // elems sharing id
3604 list< TElemDef* >::iterator pElemDef = elemDefs.begin();
3605 for ( ; pElemDef != elemDefs.end(); pElemDef++ ) // loop on elements sharing id
3607 TElemDef* pIdList = *pElemDef; // ptr on list of ids making element up
3608 // look for <id> in element definition
3609 TElemDef::iterator idDef = find( pIdList->begin(), pIdList->end(), *id );
3610 ASSERT ( idDef != pIdList->end() );
3611 // look for 2 neighbour ids of <id> in element definition
3612 for ( int prev = 0; prev < 2; ++prev ) {
3613 TElemDef::iterator idDef2 = idDef;
3615 idDef2 = ( idDef2 == pIdList->begin() ) ? --pIdList->end() : --idDef2;
3617 idDef2 = ( ++idDef2 == pIdList->end() ) ? pIdList->begin() : idDef2;
3618 // look for idDef2 on a link starting from id
3619 list< int >::iterator id2 = find( id, idsOnLink.end(), *idDef2 );
3620 if ( id2 != idsOnLink.end() && id != --id2 ) { // found not next to id
3621 // insert ids located on link between <id> and <id2>
3622 // into the element definition between idDef and idDef2
3624 for ( ; id2 != id; --id2 )
3625 pIdList->insert( idDef, *id2 );
3627 list< int >::iterator id1 = id;
3628 for ( ++id1, ++id2; id1 != id2; ++id1 )
3629 pIdList->insert( idDef2, *id1 );
3635 // remove ids of link nodes
3636 idsOnLink.pop_front();
3637 idsOnLink.pop_back();
3639 } // loop on myIdsOnBoundary
3640 } // if ( toCreatePolygons )
3642 if ( toCreatePolyedrs )
3644 // check volumes adjacent to the refined elements
3645 SMDS_VolumeTool volTool;
3646 vector<const SMDS_MeshElement*>::iterator refinedElem = myElements.begin();
3647 for ( ; refinedElem != myElements.end(); ++refinedElem )
3649 // loop on nodes of refinedElem
3650 SMDS_ElemIteratorPtr nIt = (*refinedElem)->nodesIterator();
3651 while ( nIt->more() ) {
3652 const SMDS_MeshNode* node = smdsNode( nIt->next() );
3653 // loop on inverse elements of node
3654 SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator();
3655 while ( eIt->more() )
3657 const SMDS_MeshElement* elem = eIt->next();
3658 if ( !volTool.Set( elem ) || !avoidSet.insert( elem ).second )
3659 continue; // skip faces or refined elements
3660 // add polyhedron definition
3661 myPolyhedronQuantities.push_back(vector<int> ());
3662 myPolyElemXYZIDs.push_back(TElemDef());
3663 vector<int>& quantity = myPolyhedronQuantities.back();
3664 TElemDef & elemDef = myPolyElemXYZIDs.back();
3665 // get definitions of new elements on volume faces
3666 bool makePoly = false;
3667 for ( int iF = 0; iF < volTool.NbFaces(); ++iF )
3669 if ( getFacesDefinition(volTool.GetFaceNodes( iF ),
3670 volTool.NbFaceNodes( iF ),
3671 theNodes, elemDef, quantity))
3675 myPolyElems.push_back( elem );
3677 myPolyhedronQuantities.pop_back();
3678 myPolyElemXYZIDs.pop_back();
3686 //=======================================================================
3687 //function : getFacesDefinition
3688 //purpose : return faces definition for a volume face defined by theBndNodes
3689 //=======================================================================
3691 bool SMESH_Pattern::
3692 getFacesDefinition(const SMDS_MeshNode** theBndNodes,
3693 const int theNbBndNodes,
3694 const vector< const SMDS_MeshNode* >& theNodes,
3695 list< int >& theFaceDefs,
3696 vector<int>& theQuantity)
3698 bool makePoly = false;
3699 // cout << "FROM FACE NODES: " <<endl;
3700 // for ( int i = 0; i < theNbBndNodes; ++i )
3701 // cout << theBndNodes[ i ];
3703 set< const SMDS_MeshNode* > bndNodeSet;
3704 for ( int i = 0; i < theNbBndNodes; ++i )
3705 bndNodeSet.insert( theBndNodes[ i ]);
3707 map< TNodeSet, list< list< int > > >::iterator nn_IdList;
3709 // make a set of all nodes on a face
3711 if ( !myIs2D ) { // for 2D, merge only edges
3712 nn_IdList = myIdsOnBoundary.find( bndNodeSet );
3713 if ( nn_IdList != myIdsOnBoundary.end() ) {
3715 list< int > & faceIds = nn_IdList->second.front();
3716 ids.insert( faceIds.begin(), faceIds.end() );
3719 //bool hasIdsInFace = !ids.empty();
3721 // add ids on links and bnd nodes
3722 int lastFreeId = Max( myXYZIdToNodeMap.rbegin()->first, theNodes.size() );
3723 TElemDef faceDef; // definition for the case if there is no new adjacent volumes
3724 for ( int iN = 0; iN < theNbBndNodes; ++iN )
3726 // add id of iN-th bnd node
3728 nSet.insert( theBndNodes[ iN ] );
3729 nn_IdList = myIdsOnBoundary.find( nSet );
3730 int bndId = ++lastFreeId;
3731 if ( nn_IdList != myIdsOnBoundary.end() ) {
3732 bndId = nn_IdList->second.front().front();
3733 ids.insert( bndId );
3736 myXYZIdToNodeMap.insert( make_pair( bndId, theBndNodes[ iN ] ));
3737 faceDef.push_back( bndId );
3738 // add ids on a link
3740 linkNodes.insert( theBndNodes[ iN ]);
3741 linkNodes.insert( theBndNodes[ iN + 1 == theNbBndNodes ? 0 : iN + 1 ]);
3742 nn_IdList = myIdsOnBoundary.find( linkNodes );
3743 if ( nn_IdList != myIdsOnBoundary.end() ) {
3745 list< int > & linkIds = nn_IdList->second.front();
3746 ids.insert( linkIds.begin(), linkIds.end() );
3747 if ( isReversed( theBndNodes[ iN ], linkIds ))
3748 faceDef.insert( faceDef.end(), linkIds.begin(), linkIds.end() );
3750 faceDef.insert( faceDef.end(), linkIds.rbegin(), linkIds.rend() );
3754 // find faces definition of new volumes
3756 bool defsAdded = false;
3757 if ( !myIs2D ) { // for 2D, merge only edges
3758 SMDS_VolumeTool vol;
3759 set< TElemDef* > checkedVolDefs;
3760 set< int >::iterator id = ids.begin();
3761 for ( ; id != ids.end(); ++id )
3763 // definitions of volumes sharing id
3764 list< TElemDef* >& defList = myReverseConnectivity[ *id ];
3765 ASSERT( !defList.empty() );
3766 // loop on volume definitions
3767 list< TElemDef* >::iterator pIdList = defList.begin();
3768 for ( ; pIdList != defList.end(); ++pIdList)
3770 if ( !checkedVolDefs.insert( *pIdList ).second )
3771 continue; // skip already checked volume definition
3772 vector< int > idVec;
3773 idVec.reserve( (*pIdList)->size() );
3774 idVec.insert( idVec.begin(), (*pIdList)->begin(), (*pIdList)->end() );
3775 // loop on face defs of a volume
3776 SMDS_VolumeTool::VolumeType volType = vol.GetType( idVec.size() );
3777 if ( volType == SMDS_VolumeTool::UNKNOWN )
3779 int nbFaces = vol.NbFaces( volType );
3780 for ( int iF = 0; iF < nbFaces; ++iF )
3782 const int* nodeInds = vol.GetFaceNodesIndices( volType, iF, true );
3783 int iN, nbN = vol.NbFaceNodes( volType, iF );
3784 // check if all nodes of a faces are in <ids>
3786 for ( iN = 0; iN < nbN && all; ++iN ) {
3787 int nodeId = idVec[ nodeInds[ iN ]];
3788 all = ( ids.find( nodeId ) != ids.end() );
3791 // store a face definition
3792 for ( iN = 0; iN < nbN; ++iN ) {
3793 theFaceDefs.push_back( idVec[ nodeInds[ iN ]]);
3795 theQuantity.push_back( nbN );
3803 theQuantity.push_back( faceDef.size() );
3804 theFaceDefs.splice( theFaceDefs.end(), faceDef, faceDef.begin(), faceDef.end() );
3810 //=======================================================================
3811 //function : clearSubMesh
3813 //=======================================================================
3815 static bool clearSubMesh( SMESH_Mesh* theMesh,
3816 const TopoDS_Shape& theShape)
3818 bool removed = false;
3819 if ( SMESH_subMesh * aSubMesh = theMesh->GetSubMeshContaining( theShape ))
3821 if ( aSubMesh->GetSubMeshDS() ) {
3823 aSubMesh->GetSubMeshDS()->NbElements() || aSubMesh->GetSubMeshDS()->NbNodes();
3824 aSubMesh->ComputeStateEngine( SMESH_subMesh::CLEAN );
3828 SMESHDS_Mesh* aMeshDS = theMesh->GetMeshDS();
3829 if ( SMESHDS_SubMesh* aSubMeshDS = aMeshDS->MeshElements( theShape ))
3831 SMDS_ElemIteratorPtr eIt = aSubMeshDS->GetElements();
3832 removed = eIt->more();
3833 while ( eIt->more() )
3834 aMeshDS->RemoveElement( eIt->next() );
3835 SMDS_NodeIteratorPtr nIt = aSubMeshDS->GetNodes();
3836 removed = removed || nIt->more();
3837 while ( nIt->more() )
3838 aMeshDS->RemoveNode( smdsNode( nIt->next() ));
3844 //=======================================================================
3845 //function : clearMesh
3846 //purpose : clear mesh elements existing on myShape in theMesh
3847 //=======================================================================
3849 void SMESH_Pattern::clearMesh(SMESH_Mesh* theMesh) const
3852 if ( !myShape.IsNull() )
3854 if ( !clearSubMesh( theMesh, myShape ) && !myIs2D ) { // myShape is SHELL but volumes may be bound to SOLID
3855 TopTools_ListIteratorOfListOfShape it( theMesh->GetAncestors( myShape ));
3856 for (; it.More() && it.Value().ShapeType() == TopAbs_SOLID; it.Next())
3858 clearSubMesh( theMesh, it.Value() );
3864 //=======================================================================
3865 //function : MakeMesh
3866 //purpose : Create nodes and elements in <theMesh> using nodes
3867 // coordinates computed by either of Apply...() methods
3868 // WARNING : StdMeshers_Projection_... relies on MakeMesh() behavior: that
3869 // it does not care of nodes and elements already existing on
3870 // subshapes. DO NOT MERGE them or modify also StdMeshers_Projection_..
3871 //=======================================================================
3873 bool SMESH_Pattern::MakeMesh(SMESH_Mesh* theMesh,
3874 const bool toCreatePolygons,
3875 const bool toCreatePolyedrs)
3877 MESSAGE(" ::MakeMesh() " );
3878 if ( !myIsComputed )
3879 return setErrorCode( ERR_MAKEM_NOT_COMPUTED );
3881 mergePoints( toCreatePolygons );
3883 SMESHDS_Mesh* aMeshDS = theMesh->GetMeshDS();
3885 // clear elements and nodes existing on myShape
3888 bool onMeshElements = ( !myElements.empty() );
3890 // Create missing nodes
3892 vector< const SMDS_MeshNode* > nodesVector; // i-th point/xyz -> node
3893 if ( onMeshElements )
3895 nodesVector.resize( Max( myXYZ.size(), myXYZIdToNodeMap.rbegin()->first ), 0 );
3896 map< int, const SMDS_MeshNode*>::iterator i_node = myXYZIdToNodeMap.begin();
3897 for ( ; i_node != myXYZIdToNodeMap.end(); i_node++ ) {
3898 nodesVector[ i_node->first ] = i_node->second;
3900 for ( int i = 0; i < myXYZ.size(); ++i ) {
3901 if ( !nodesVector[ i ] && isDefined( myXYZ[ i ] ) )
3902 nodesVector[ i ] = aMeshDS->AddNode (myXYZ[ i ].X(),
3909 nodesVector.resize( myPoints.size(), 0 );
3911 // to find point index
3912 map< TPoint*, int > pointIndex;
3913 for ( int i = 0; i < myPoints.size(); i++ )
3914 pointIndex.insert( make_pair( & myPoints[ i ], i ));
3916 // loop on sub-shapes of myShape: create nodes
3917 map< int, list< TPoint* > >::iterator idPointIt = myShapeIDToPointsMap.begin();
3918 for ( ; idPointIt != myShapeIDToPointsMap.end(); idPointIt++ )
3921 //SMESHDS_SubMesh * subMeshDS = 0;
3922 if ( !myShapeIDMap.IsEmpty() ) {
3923 S = myShapeIDMap( idPointIt->first );
3924 //subMeshDS = aMeshDS->MeshElements( S );
3926 list< TPoint* > & points = idPointIt->second;
3927 list< TPoint* >::iterator pIt = points.begin();
3928 for ( ; pIt != points.end(); pIt++ )
3930 TPoint* point = *pIt;
3931 int pIndex = pointIndex[ point ];
3932 if ( nodesVector [ pIndex ] )
3934 SMDS_MeshNode* node = aMeshDS->AddNode (point->myXYZ.X(),
3937 nodesVector [ pIndex ] = node;
3939 if ( true /*subMeshDS*/ ) {
3940 // !!!!! do not merge new nodes with ones existing on submeshes (see method comment)
3941 switch ( S.ShapeType() ) {
3942 case TopAbs_VERTEX: {
3943 aMeshDS->SetNodeOnVertex( node, TopoDS::Vertex( S )); break;
3946 aMeshDS->SetNodeOnEdge( node, TopoDS::Edge( S ), point->myU ); break;
3949 aMeshDS->SetNodeOnFace( node, TopoDS::Face( S ),
3950 point->myUV.X(), point->myUV.Y() ); break;
3953 aMeshDS->SetNodeInVolume( node, TopoDS::Shell( S ));
3962 if ( onMeshElements )
3964 // prepare data to create poly elements
3965 makePolyElements( nodesVector, toCreatePolygons, toCreatePolyedrs );
3968 createElements( theMesh, nodesVector, myElemXYZIDs, myElements );
3969 // sew old and new elements
3970 createElements( theMesh, nodesVector, myPolyElemXYZIDs, myPolyElems );
3974 createElements( theMesh, nodesVector, myElemPointIDs, myElements );
3977 // const map<int,SMESHDS_SubMesh*>& sm = aMeshDS->SubMeshes();
3978 // map<int,SMESHDS_SubMesh*>::const_iterator i_sm = sm.begin();
3979 // for ( ; i_sm != sm.end(); i_sm++ )
3981 // cout << " SM " << i_sm->first << " ";
3982 // TopAbs::Print( aMeshDS->IndexToShape( i_sm->first ).ShapeType(), cout)<< " ";
3983 // //SMDS_ElemIteratorPtr GetElements();
3984 // SMDS_NodeIteratorPtr nit = i_sm->second->GetNodes();
3985 // while ( nit->more() )
3986 // cout << nit->next()->GetID() << " ";
3989 return setErrorCode( ERR_OK );
3992 //=======================================================================
3993 //function : createElements
3994 //purpose : add elements to the mesh
3995 //=======================================================================
3997 void SMESH_Pattern::createElements(SMESH_Mesh* theMesh,
3998 const vector<const SMDS_MeshNode* >& theNodesVector,
3999 const list< TElemDef > & theElemNodeIDs,
4000 const vector<const SMDS_MeshElement*>& theElements)
4002 SMESHDS_Mesh* aMeshDS = theMesh->GetMeshDS();
4003 SMESH_MeshEditor editor( theMesh );
4005 bool onMeshElements = !theElements.empty();
4007 // shapes and groups theElements are on
4008 vector< int > shapeIDs;
4009 vector< list< SMESHDS_Group* > > groups;
4010 set< const SMDS_MeshNode* > shellNodes;
4011 if ( onMeshElements )
4013 shapeIDs.resize( theElements.size() );
4014 groups.resize( theElements.size() );
4015 const set<SMESHDS_GroupBase*>& allGroups = aMeshDS->GetGroups();
4016 set<SMESHDS_GroupBase*>::const_iterator grIt;
4017 for ( int i = 0; i < theElements.size(); i++ )
4019 shapeIDs[ i ] = editor.FindShape( theElements[ i ] );
4020 for ( grIt = allGroups.begin(); grIt != allGroups.end(); grIt++ ) {
4021 SMESHDS_Group* group = dynamic_cast<SMESHDS_Group*>( *grIt );
4022 if ( group && group->SMDSGroup().Contains( theElements[ i ] ))
4023 groups[ i ].push_back( group );
4026 // get all nodes bound to shells because their SpacePosition is not set
4027 // by SMESHDS_Mesh::SetNodeInVolume()
4028 TopoDS_Shape aMainShape = aMeshDS->ShapeToMesh();
4029 if ( !aMainShape.IsNull() ) {
4030 TopExp_Explorer shellExp( aMainShape, TopAbs_SHELL );
4031 for ( ; shellExp.More(); shellExp.Next() )
4033 SMESHDS_SubMesh * sm = aMeshDS->MeshElements( shellExp.Current() );
4035 SMDS_NodeIteratorPtr nIt = sm->GetNodes();
4036 while ( nIt->more() )
4037 shellNodes.insert( nIt->next() );
4042 // nb new elements per a refined element
4043 int nbNewElemsPerOld = 1;
4044 if ( onMeshElements )
4045 nbNewElemsPerOld = theElemNodeIDs.size() / theElements.size();
4049 list< TElemDef >::const_iterator enIt = theElemNodeIDs.begin();
4050 list< vector<int> >::iterator quantity = myPolyhedronQuantities.begin();
4051 for ( int iElem = 0; enIt != theElemNodeIDs.end(); enIt++, iElem++ )
4053 const TElemDef & elemNodeInd = *enIt;
4055 vector< const SMDS_MeshNode* > nodes( elemNodeInd.size() );
4056 TElemDef::const_iterator id = elemNodeInd.begin();
4058 for ( nbNodes = 0; id != elemNodeInd.end(); id++ ) {
4059 if ( *id < theNodesVector.size() )
4060 nodes[ nbNodes++ ] = theNodesVector[ *id ];
4062 nodes[ nbNodes++ ] = myXYZIdToNodeMap[ *id ];
4064 // dim of refined elem
4065 int elemIndex = iElem / nbNewElemsPerOld; // refined element index
4066 if ( onMeshElements ) {
4067 is2d = ( theElements[ elemIndex ]->GetType() == SMDSAbs_Face );
4070 const SMDS_MeshElement* elem = 0;
4072 switch ( nbNodes ) {
4074 elem = aMeshDS->AddFace( nodes[0], nodes[1], nodes[2] ); break;
4076 elem = aMeshDS->AddFace( nodes[0], nodes[1], nodes[2], nodes[3] ); break;
4078 if ( !onMeshElements ) {// create a quadratic face
4079 elem = aMeshDS->AddFace (nodes[0], nodes[1], nodes[2], nodes[3],
4080 nodes[4], nodes[5] ); break;
4081 } // else do not break but create a polygon
4083 if ( !onMeshElements ) {// create a quadratic face
4084 elem = aMeshDS->AddFace (nodes[0], nodes[1], nodes[2], nodes[3],
4085 nodes[4], nodes[5], nodes[6], nodes[7] ); break;
4086 } // else do not break but create a polygon
4088 elem = aMeshDS->AddPolygonalFace( nodes );
4092 switch ( nbNodes ) {
4094 elem = aMeshDS->AddVolume (nodes[0], nodes[1], nodes[2], nodes[3] ); break;
4096 elem = aMeshDS->AddVolume (nodes[0], nodes[1], nodes[2], nodes[3],
4099 elem = aMeshDS->AddVolume (nodes[0], nodes[1], nodes[2], nodes[3],
4100 nodes[4], nodes[5] ); break;
4102 elem = aMeshDS->AddVolume (nodes[0], nodes[1], nodes[2], nodes[3],
4103 nodes[4], nodes[5], nodes[6], nodes[7] ); break;
4105 elem = aMeshDS->AddPolyhedralVolume( nodes, *quantity++ );
4108 // set element on a shape
4109 if ( elem && onMeshElements ) // applied to mesh elements
4111 int shapeID = shapeIDs[ elemIndex ];
4112 if ( shapeID > 0 ) {
4113 aMeshDS->SetMeshElementOnShape( elem, shapeID );
4114 // set nodes on a shape
4115 TopoDS_Shape S = aMeshDS->IndexToShape( shapeID );
4116 if ( S.ShapeType() == TopAbs_SOLID ) {
4117 TopoDS_Iterator shellIt( S );
4118 if ( shellIt.More() )
4119 shapeID = aMeshDS->ShapeToIndex( shellIt.Value() );
4121 SMDS_ElemIteratorPtr noIt = elem->nodesIterator();
4122 while ( noIt->more() ) {
4123 SMDS_MeshNode* node = const_cast<SMDS_MeshNode*>(smdsNode( noIt->next() ));
4124 if (!node->GetPosition()->GetShapeId() &&
4125 shellNodes.find( node ) == shellNodes.end() ) {
4126 if ( S.ShapeType() == TopAbs_FACE )
4127 aMeshDS->SetNodeOnFace( node, shapeID );
4129 aMeshDS->SetNodeInVolume( node, shapeID );
4130 shellNodes.insert( node );
4135 // add elem in groups
4136 list< SMESHDS_Group* >::iterator g = groups[ elemIndex ].begin();
4137 for ( ; g != groups[ elemIndex ].end(); ++g )
4138 (*g)->SMDSGroup().Add( elem );
4140 if ( elem && !myShape.IsNull() ) // applied to shape
4141 aMeshDS->SetMeshElementOnShape( elem, myShape );
4144 // make that SMESH_subMesh::_computeState == COMPUTE_OK
4145 // so that operations with hypotheses will erase the mesh being built
4147 SMESH_subMesh * subMesh;
4148 if ( !myShape.IsNull() ) {
4149 subMesh = theMesh->GetSubMesh( myShape );
4151 subMesh->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
4153 if ( onMeshElements ) {
4154 list< int > elemIDs;
4155 for ( int i = 0; i < theElements.size(); i++ )
4157 subMesh = theMesh->GetSubMeshContaining( shapeIDs[ i ] );
4159 subMesh->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
4161 elemIDs.push_back( theElements[ i ]->GetID() );
4163 // remove refined elements
4164 editor.Remove( elemIDs, false );
4168 //=======================================================================
4169 //function : isReversed
4170 //purpose : check xyz ids order in theIdsList taking into account
4171 // theFirstNode on a link
4172 //=======================================================================
4174 bool SMESH_Pattern::isReversed(const SMDS_MeshNode* theFirstNode,
4175 const list< int >& theIdsList) const
4177 if ( theIdsList.size() < 2 )
4180 gp_Pnt Pf ( theFirstNode->X(), theFirstNode->Y(), theFirstNode->Z() );
4182 list<int>::const_iterator id = theIdsList.begin();
4183 for ( int i = 0; i < 2; ++i, ++id ) {
4184 if ( *id < myXYZ.size() )
4185 P[ i ] = myXYZ[ *id ];
4187 map< int, const SMDS_MeshNode*>::const_iterator i_n;
4188 i_n = myXYZIdToNodeMap.find( *id );
4189 ASSERT( i_n != myXYZIdToNodeMap.end() );
4190 const SMDS_MeshNode* n = i_n->second;
4191 P[ i ].SetCoord( n->X(), n->Y(), n->Z() );
4194 return Pf.SquareDistance( P[ 1 ] ) < Pf.SquareDistance( P[ 0 ] );
4198 //=======================================================================
4199 //function : arrangeBoundaries
4200 //purpose : if there are several wires, arrange boundaryPoints so that
4201 // the outer wire goes first and fix inner wires orientation
4202 // update myKeyPointIDs to correspond to the order of key-points
4203 // in boundaries; sort internal boundaries by the nb of key-points
4204 //=======================================================================
4206 void SMESH_Pattern::arrangeBoundaries (list< list< TPoint* > >& boundaryList)
4208 typedef list< list< TPoint* > >::iterator TListOfListIt;
4209 TListOfListIt bndIt;
4210 list< TPoint* >::iterator pIt;
4212 int nbBoundaries = boundaryList.size();
4213 if ( nbBoundaries > 1 )
4215 // sort boundaries by nb of key-points
4216 if ( nbBoundaries > 2 )
4218 // move boundaries in tmp list
4219 list< list< TPoint* > > tmpList;
4220 tmpList.splice( tmpList.begin(), boundaryList, boundaryList.begin(), boundaryList.end());
4221 // make a map nb-key-points to boundary-position-in-tmpList,
4222 // boundary-positions get ordered in it
4223 typedef map< int, TListOfListIt > TNbKpBndPosMap;
4224 TNbKpBndPosMap nbKpBndPosMap;
4225 bndIt = tmpList.begin();
4226 list< int >::iterator nbKpIt = myNbKeyPntInBoundary.begin();
4227 for ( ; nbKpIt != myNbKeyPntInBoundary.end(); nbKpIt++, bndIt++ ) {
4228 int nb = *nbKpIt * nbBoundaries;
4229 while ( nbKpBndPosMap.find ( nb ) != nbKpBndPosMap.end() )
4231 nbKpBndPosMap.insert( TNbKpBndPosMap::value_type( nb, bndIt ));
4233 // move boundaries back to boundaryList
4234 TNbKpBndPosMap::iterator nbKpBndPosIt = nbKpBndPosMap.begin();
4235 for ( ; nbKpBndPosIt != nbKpBndPosMap.end(); nbKpBndPosIt++ ) {
4236 TListOfListIt & bndPos2 = (*nbKpBndPosIt).second;
4237 TListOfListIt bndPos1 = bndPos2++;
4238 boundaryList.splice( boundaryList.end(), tmpList, bndPos1, bndPos2 );
4242 // Look for the outer boundary: the one with the point with the least X
4243 double leastX = DBL_MAX;
4244 TListOfListIt outerBndPos;
4245 for ( bndIt = boundaryList.begin(); bndIt != boundaryList.end(); bndIt++ )
4247 list< TPoint* >& boundary = (*bndIt);
4248 for ( pIt = boundary.begin(); pIt != boundary.end(); pIt++)
4250 TPoint* point = *pIt;
4251 if ( point->myInitXYZ.X() < leastX ) {
4252 leastX = point->myInitXYZ.X();
4253 outerBndPos = bndIt;
4258 if ( outerBndPos != boundaryList.begin() )
4259 boundaryList.splice( boundaryList.begin(), boundaryList, outerBndPos, ++outerBndPos );
4261 } // if nbBoundaries > 1
4263 // Check boundaries orientation and re-fill myKeyPointIDs
4265 set< TPoint* > keyPointSet;
4266 list< int >::iterator kpIt = myKeyPointIDs.begin();
4267 for ( ; kpIt != myKeyPointIDs.end(); kpIt++ )
4268 keyPointSet.insert( & myPoints[ *kpIt ]);
4269 myKeyPointIDs.clear();
4271 // update myNbKeyPntInBoundary also
4272 list< int >::iterator nbKpIt = myNbKeyPntInBoundary.begin();
4274 for ( bndIt = boundaryList.begin(); bndIt != boundaryList.end(); bndIt++, nbKpIt++ )
4276 // find the point with the least X
4277 double leastX = DBL_MAX;
4278 list< TPoint* >::iterator xpIt;
4279 list< TPoint* >& boundary = (*bndIt);
4280 for ( pIt = boundary.begin(); pIt != boundary.end(); pIt++)
4282 TPoint* point = *pIt;
4283 if ( point->myInitXYZ.X() < leastX ) {
4284 leastX = point->myInitXYZ.X();
4288 // find points next to the point with the least X
4289 TPoint* p = *xpIt, *pPrev, *pNext;
4290 if ( p == boundary.front() )
4291 pPrev = *(++boundary.rbegin());
4297 if ( p == boundary.back() )
4298 pNext = *(++boundary.begin());
4303 // vectors of boundary direction near <p>
4304 gp_Vec2d v1( pPrev->myInitUV, p->myInitUV ), v2( p->myInitUV, pNext->myInitUV );
4305 double sqMag1 = v1.SquareMagnitude(), sqMag2 = v2.SquareMagnitude();
4306 if ( sqMag1 > DBL_MIN && sqMag2 > DBL_MIN ) {
4307 double yPrev = v1.Y() / sqrt( sqMag1 );
4308 double yNext = v2.Y() / sqrt( sqMag2 );
4309 double sumY = yPrev + yNext;
4311 if ( bndIt == boundaryList.begin() ) // outer boundary
4319 // Put key-point IDs of a well-oriented boundary in myKeyPointIDs
4320 (*nbKpIt) = 0; // count nb of key-points again
4321 pIt = boundary.begin();
4322 for ( ; pIt != boundary.end(); pIt++)
4324 TPoint* point = *pIt;
4325 if ( keyPointSet.find( point ) == keyPointSet.end() )
4327 // find an index of a keypoint
4329 vector< TPoint >::const_iterator pVecIt = myPoints.begin();
4330 for ( ; pVecIt != myPoints.end(); pVecIt++, index++ )
4331 if ( &(*pVecIt) == point )
4333 myKeyPointIDs.push_back( index );
4336 myKeyPointIDs.pop_back(); // remove the first key-point from the back
4339 } // loop on a list of boundaries
4341 ASSERT( myKeyPointIDs.size() == keyPointSet.size() );
4344 //=======================================================================
4345 //function : findBoundaryPoints
4346 //purpose : if loaded from file, find points to map on edges and faces and
4347 // compute their parameters
4348 //=======================================================================
4350 bool SMESH_Pattern::findBoundaryPoints()
4352 if ( myIsBoundaryPointsFound ) return true;
4354 MESSAGE(" findBoundaryPoints() ");
4356 myNbKeyPntInBoundary.clear();
4360 set< TPoint* > pointsInElems;
4362 // Find free links of elements:
4363 // put links of all elements in a set and remove links encountered twice
4365 typedef pair< TPoint*, TPoint*> TLink;
4366 set< TLink > linkSet;
4367 list<TElemDef >::iterator epIt = myElemPointIDs.begin();
4368 for ( ; epIt != myElemPointIDs.end(); epIt++ )
4370 TElemDef & elemPoints = *epIt;
4371 TElemDef::iterator pIt = elemPoints.begin();
4372 int prevP = elemPoints.back();
4373 for ( ; pIt != elemPoints.end(); pIt++ ) {
4374 TPoint* p1 = & myPoints[ prevP ];
4375 TPoint* p2 = & myPoints[ *pIt ];
4376 TLink link(( p1 < p2 ? p1 : p2 ), ( p1 < p2 ? p2 : p1 ));
4377 ASSERT( link.first != link.second );
4378 pair<set< TLink >::iterator,bool> itUniq = linkSet.insert( link );
4379 if ( !itUniq.second )
4380 linkSet.erase( itUniq.first );
4383 pointsInElems.insert( p1 );
4386 // Now linkSet contains only free links,
4387 // find the points order that they have in boundaries
4389 // 1. make a map of key-points
4390 set< TPoint* > keyPointSet;
4391 list< int >::iterator kpIt = myKeyPointIDs.begin();
4392 for ( ; kpIt != myKeyPointIDs.end(); kpIt++ )
4393 keyPointSet.insert( & myPoints[ *kpIt ]);
4395 // 2. chain up boundary points
4396 list< list< TPoint* > > boundaryList;
4397 boundaryList.push_back( list< TPoint* >() );
4398 list< TPoint* > * boundary = & boundaryList.back();
4400 TPoint *point1, *point2, *keypoint1;
4401 kpIt = myKeyPointIDs.begin();
4402 point1 = keypoint1 = & myPoints[ *kpIt++ ];
4403 // loop on free links: look for the next point
4405 set< TLink >::iterator lIt = linkSet.begin();
4406 while ( lIt != linkSet.end() )
4408 if ( (*lIt).first == point1 )
4409 point2 = (*lIt).second;
4410 else if ( (*lIt).second == point1 )
4411 point2 = (*lIt).first;
4416 linkSet.erase( lIt );
4417 lIt = linkSet.begin();
4419 if ( keyPointSet.find( point2 ) == keyPointSet.end() ) // not a key-point
4421 boundary->push_back( point2 );
4423 else // a key-point found
4425 keyPointSet.erase( point2 ); // keyPointSet contains not found key-points only
4427 if ( point2 != keypoint1 ) // its not the boundary end
4429 boundary->push_back( point2 );
4431 else // the boundary end reached
4433 boundary->push_front( keypoint1 );
4434 boundary->push_back( keypoint1 );
4435 myNbKeyPntInBoundary.push_back( iKeyPoint );
4436 if ( keyPointSet.empty() )
4437 break; // all boundaries containing key-points are found
4439 // prepare to search for the next boundary
4440 boundaryList.push_back( list< TPoint* >() );
4441 boundary = & boundaryList.back();
4442 point2 = keypoint1 = (*keyPointSet.begin());
4446 } // loop on the free links set
4448 if ( boundary->empty() ) {
4449 MESSAGE(" a separate key-point");
4450 return setErrorCode( ERR_READ_BAD_KEY_POINT );
4453 // if there are several wires, arrange boundaryPoints so that
4454 // the outer wire goes first and fix inner wires orientation;
4455 // sort myKeyPointIDs to correspond to the order of key-points
4457 arrangeBoundaries( boundaryList );
4459 // Find correspondence shape ID - points,
4460 // compute points parameter on edge
4462 keyPointSet.clear();
4463 for ( kpIt = myKeyPointIDs.begin(); kpIt != myKeyPointIDs.end(); kpIt++ )
4464 keyPointSet.insert( & myPoints[ *kpIt ]);
4466 set< TPoint* > edgePointSet; // to find in-face points
4467 int vertexID = 1; // the first index in TopTools_IndexedMapOfShape
4468 int edgeID = myKeyPointIDs.size() + 1;
4470 list< list< TPoint* > >::iterator bndIt = boundaryList.begin();
4471 for ( ; bndIt != boundaryList.end(); bndIt++ )
4473 boundary = & (*bndIt);
4474 double edgeLength = 0;
4475 list< TPoint* >::iterator pIt = boundary->begin();
4476 getShapePoints( edgeID ).push_back( *pIt );
4477 getShapePoints( vertexID++ ).push_back( *pIt );
4478 for ( pIt++; pIt != boundary->end(); pIt++)
4480 list< TPoint* > & edgePoints = getShapePoints( edgeID );
4481 TPoint* prevP = edgePoints.empty() ? 0 : edgePoints.back();
4482 TPoint* point = *pIt;
4483 edgePointSet.insert( point );
4484 if ( keyPointSet.find( point ) == keyPointSet.end() ) // inside-edge point
4486 edgePoints.push_back( point );
4487 edgeLength += ( point->myInitUV - prevP->myInitUV ).Modulus();
4488 point->myInitU = edgeLength;
4492 // treat points on the edge which ends up: compute U [0,1]
4493 edgePoints.push_back( point );
4494 if ( edgePoints.size() > 2 ) {
4495 edgeLength += ( point->myInitUV - prevP->myInitUV ).Modulus();
4496 list< TPoint* >::iterator epIt = edgePoints.begin();
4497 for ( ; epIt != edgePoints.end(); epIt++ )
4498 (*epIt)->myInitU /= edgeLength;
4500 // begin the next edge treatment
4503 if ( point != boundary->front() ) { // not the first key-point again
4504 getShapePoints( edgeID ).push_back( point );
4505 getShapePoints( vertexID++ ).push_back( point );
4511 // find in-face points
4512 list< TPoint* > & facePoints = getShapePoints( edgeID );
4513 vector< TPoint >::iterator pVecIt = myPoints.begin();
4514 for ( ; pVecIt != myPoints.end(); pVecIt++ ) {
4515 TPoint* point = &(*pVecIt);
4516 if ( edgePointSet.find( point ) == edgePointSet.end() &&
4517 pointsInElems.find( point ) != pointsInElems.end())
4518 facePoints.push_back( point );
4525 // bind points to shapes according to point parameters
4526 vector< TPoint >::iterator pVecIt = myPoints.begin();
4527 for ( int i = 0; pVecIt != myPoints.end(); pVecIt++, i++ ) {
4528 TPoint* point = &(*pVecIt);
4529 int shapeID = SMESH_Block::GetShapeIDByParams( point->myInitXYZ );
4530 getShapePoints( shapeID ).push_back( point );
4531 // detect key-points
4532 if ( SMESH_Block::IsVertexID( shapeID ))
4533 myKeyPointIDs.push_back( i );
4537 myIsBoundaryPointsFound = true;
4538 return myIsBoundaryPointsFound;
4541 //=======================================================================
4543 //purpose : clear fields
4544 //=======================================================================
4546 void SMESH_Pattern::Clear()
4548 myIsComputed = myIsBoundaryPointsFound = false;
4551 myKeyPointIDs.clear();
4552 myElemPointIDs.clear();
4553 myShapeIDToPointsMap.clear();
4554 myShapeIDMap.Clear();
4556 myNbKeyPntInBoundary.clear();
4559 //=======================================================================
4560 //function : setShapeToMesh
4561 //purpose : set a shape to be meshed. Return True if meshing is possible
4562 //=======================================================================
4564 bool SMESH_Pattern::setShapeToMesh(const TopoDS_Shape& theShape)
4566 if ( !IsLoaded() ) {
4567 MESSAGE( "Pattern not loaded" );
4568 return setErrorCode( ERR_APPL_NOT_LOADED );
4571 TopAbs_ShapeEnum aType = theShape.ShapeType();
4572 bool dimOk = ( myIs2D ? aType == TopAbs_FACE : aType == TopAbs_SHELL );
4574 MESSAGE( "Pattern dimention mismatch" );
4575 return setErrorCode( ERR_APPL_BAD_DIMENTION );
4578 // check if a face is closed
4579 int nbNodeOnSeamEdge = 0;
4581 TopoDS_Face face = TopoDS::Face( theShape );
4582 TopExp_Explorer eExp( theShape, TopAbs_EDGE );
4583 for ( ; eExp.More() && nbNodeOnSeamEdge == 0; eExp.Next() ) {
4584 const TopoDS_Edge& ee = TopoDS::Edge(eExp.Current());
4585 bool isClosed1 = BRep_Tool::IsClosed(ee, face);
4586 // BEGIN: jfa for bug 0019943
4589 for (TopExp_Explorer expw (face, TopAbs_WIRE); expw.More() && !isClosed1; expw.Next()) {
4590 const TopoDS_Wire& wire = TopoDS::Wire(expw.Current());
4592 for (BRepTools_WireExplorer we (wire, face); we.More() && !isClosed1; we.Next()) {
4593 if (we.Current().IsSame(ee)) {
4595 if (nbe == 2) isClosed1 = true;
4600 // END: jfa for bug 0019943
4602 nbNodeOnSeamEdge = 2;
4607 // check nb of vertices
4608 TopTools_IndexedMapOfShape vMap;
4609 TopExp::MapShapes( theShape, TopAbs_VERTEX, vMap );
4610 if ( vMap.Extent() + nbNodeOnSeamEdge != myKeyPointIDs.size() ) {
4611 MESSAGE( myKeyPointIDs.size() + nbNodeOnSeamEdge << " != " << vMap.Extent() );
4612 return setErrorCode( ERR_APPL_BAD_NB_VERTICES );
4615 myElements.clear(); // not refine elements
4616 myElemXYZIDs.clear();
4618 myShapeIDMap.Clear();
4623 //=======================================================================
4624 //function : GetMappedPoints
4625 //purpose : Return nodes coordinates computed by Apply() method
4626 //=======================================================================
4628 bool SMESH_Pattern::GetMappedPoints ( list< const gp_XYZ * > & thePoints ) const
4631 if ( !myIsComputed )
4634 if ( myElements.empty() ) { // applied to shape
4635 vector< TPoint >::const_iterator pVecIt = myPoints.begin();
4636 for ( ; pVecIt != myPoints.end(); pVecIt++ )
4637 thePoints.push_back( & (*pVecIt).myXYZ.XYZ() );
4639 else { // applied to mesh elements
4640 const gp_XYZ * definedXYZ = & myPoints[ myKeyPointIDs.front() ].myXYZ.XYZ();
4641 vector<gp_XYZ>::const_iterator xyz = myXYZ.begin();
4642 for ( ; xyz != myXYZ.end(); ++xyz )
4643 if ( !isDefined( *xyz ))
4644 thePoints.push_back( definedXYZ );
4646 thePoints.push_back( & (*xyz) );
4648 return !thePoints.empty();
4652 //=======================================================================
4653 //function : GetPoints
4654 //purpose : Return nodes coordinates of the pattern
4655 //=======================================================================
4657 bool SMESH_Pattern::GetPoints ( list< const gp_XYZ * > & thePoints ) const
4664 vector< TPoint >::const_iterator pVecIt = myPoints.begin();
4665 for ( ; pVecIt != myPoints.end(); pVecIt++ )
4666 thePoints.push_back( & (*pVecIt).myInitXYZ );
4668 return ( thePoints.size() > 0 );
4671 //=======================================================================
4672 //function : getShapePoints
4673 //purpose : return list of points located on theShape
4674 //=======================================================================
4676 list< SMESH_Pattern::TPoint* > &
4677 SMESH_Pattern::getShapePoints(const TopoDS_Shape& theShape)
4680 if ( !myShapeIDMap.Contains( theShape ))
4681 aShapeID = myShapeIDMap.Add( theShape );
4683 aShapeID = myShapeIDMap.FindIndex( theShape );
4685 return myShapeIDToPointsMap[ aShapeID ];
4688 //=======================================================================
4689 //function : getShapePoints
4690 //purpose : return list of points located on the shape
4691 //=======================================================================
4693 list< SMESH_Pattern::TPoint* > & SMESH_Pattern::getShapePoints(const int theShapeID)
4695 return myShapeIDToPointsMap[ theShapeID ];
4698 //=======================================================================
4699 //function : DumpPoints
4701 //=======================================================================
4703 void SMESH_Pattern::DumpPoints() const
4706 vector< TPoint >::const_iterator pVecIt = myPoints.begin();
4707 for ( int i = 0; pVecIt != myPoints.end(); pVecIt++, i++ )
4708 MESSAGE_ADD ( std::endl << i << ": " << *pVecIt );
4712 //=======================================================================
4713 //function : TPoint()
4715 //=======================================================================
4717 SMESH_Pattern::TPoint::TPoint()
4720 myInitXYZ.SetCoord(0,0,0);
4721 myInitUV.SetCoord(0.,0.);
4723 myXYZ.SetCoord(0,0,0);
4724 myUV.SetCoord(0.,0.);
4729 //=======================================================================
4730 //function : operator <<
4732 //=======================================================================
4734 ostream & operator <<(ostream & OS, const SMESH_Pattern::TPoint& p)
4736 gp_XYZ xyz = p.myInitXYZ;
4737 OS << "\tinit( xyz( " << xyz.X() << " " << xyz.Y() << " " << xyz.Z() << " )";
4738 gp_XY xy = p.myInitUV;
4739 OS << " uv( " << xy.X() << " " << xy.Y() << " )";
4740 double u = p.myInitU;
4741 OS << " u( " << u << " )) " << &p << endl;
4742 xyz = p.myXYZ.XYZ();
4743 OS << "\t ( xyz( " << xyz.X() << " " << xyz.Y() << " " << xyz.Z() << " )";
4745 OS << " uv( " << xy.X() << " " << xy.Y() << " )";
4747 OS << " u( " << u << " ))" << endl;