1 // Created on: 1999-04-27
2 // Created by: Andrey BETENEV
3 // Copyright (c) 1999-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 // pdn 01.06.99 S4205: handling not-SameRange edges
18 // abv 22.07.99 implementing patch indices
19 // svv 10.01.00 porting on DEC
21 #include <Bnd_Box2d.hxx>
22 #include <BndLib_Add2dCurve.hxx>
23 #include <BRep_Builder.hxx>
24 #include <BRep_Tool.hxx>
25 #include <BRepTools.hxx>
26 #include <BRepTopAdaptor_FClass2d.hxx>
27 #include <Extrema_ExtPC2d.hxx>
28 #include <Geom2d_Curve.hxx>
29 #include <Geom2d_Line.hxx>
30 #include <Geom2dAdaptor_Curve.hxx>
31 #include <Geom2dInt_GInter.hxx>
32 #include <Geom_Curve.hxx>
33 #include <Geom_Surface.hxx>
34 #include <GeomAdaptor_Surface.hxx>
35 #include <gp_Dir2d.hxx>
36 #include <gp_Lin2d.hxx>
38 #include <gp_Pnt2d.hxx>
39 #include <IntRes2d_Domain.hxx>
40 #include <IntRes2d_IntersectionPoint.hxx>
41 #include <IntRes2d_IntersectionSegment.hxx>
42 #include <Precision.hxx>
43 #include <ShapeAnalysis.hxx>
44 #include <ShapeAnalysis_Curve.hxx>
45 #include <ShapeAnalysis_Edge.hxx>
46 #include <ShapeAnalysis_Surface.hxx>
47 #include <ShapeAnalysis_TransferParameters.hxx>
48 #include <ShapeAnalysis_TransferParametersProj.hxx>
49 #include <ShapeAnalysis_WireOrder.hxx>
50 #include <ShapeBuild_Edge.hxx>
51 #include <ShapeBuild_ReShape.hxx>
52 #include <ShapeBuild_Vertex.hxx>
53 #include <ShapeExtend.hxx>
54 #include <ShapeExtend_CompositeSurface.hxx>
55 #include <ShapeExtend_WireData.hxx>
56 #include <ShapeFix_ComposeShell.hxx>
57 #include <ShapeFix_Edge.hxx>
58 #include <ShapeFix_Face.hxx>
59 #include <ShapeFix_Wire.hxx>
60 #include <ShapeFix_WireSegment.hxx>
61 #include <Standard_Type.hxx>
62 #include <TColgp_SequenceOfPnt2d.hxx>
63 #include <TColStd_Array1OfBoolean.hxx>
64 #include <TColStd_Array1OfInteger.hxx>
65 #include <TColStd_Array1OfReal.hxx>
66 #include <TColStd_HArray1OfReal.hxx>
67 #include <TColStd_SequenceOfReal.hxx>
68 #include <TopLoc_Location.hxx>
70 #include <TopoDS_Edge.hxx>
71 #include <TopoDS_Face.hxx>
72 #include <TopoDS_Iterator.hxx>
73 #include <TopoDS_Shape.hxx>
74 #include <TopoDS_Shell.hxx>
75 #include <TopoDS_Vertex.hxx>
76 #include <TopoDS_Wire.hxx>
77 #include <TopTools_DataMapOfShapeListOfShape.hxx>
78 #include <TopTools_MapOfShape.hxx>
80 IMPLEMENT_STANDARD_RTTIEXT(ShapeFix_ComposeShell,ShapeFix_Root)
82 //=======================================================================
83 //function : ShapeFix_ComposeShell
85 //=======================================================================
86 ShapeFix_ComposeShell::ShapeFix_ComposeShell () :
87 myOrient(TopAbs_FORWARD),
89 myUResolution(RealLast()),
90 myVResolution(RealLast()),
91 myInvertEdgeStatus(Standard_True),
92 myClosedMode(Standard_False),
93 myUClosed(Standard_False),
94 myVClosed(Standard_False),
98 myTransferParamTool = new ShapeAnalysis_TransferParametersProj;
102 //=======================================================================
105 //=======================================================================
107 void ShapeFix_ComposeShell::Init (const Handle(ShapeExtend_CompositeSurface) &Grid,
108 const TopLoc_Location& L,
109 const TopoDS_Face &Face,
110 const Standard_Real Prec)
113 myUClosed = myGrid->IsUClosed();
114 myVClosed = myGrid->IsVClosed();
115 myUPeriod = myGrid->UJointValue(myGrid->NbUPatches()+1) - myGrid->UJointValue(1);
116 myVPeriod = myGrid->VJointValue(myGrid->NbVPatches()+1) - myGrid->VJointValue(1);
118 // DTK-CKY 100531 : protection against very thin face
119 // Test "isclosed" should be filtered on the overall (non trimmed) surface, must be closed
120 Handle(Geom_Surface) theSurface = BRep_Tool::Surface(Face,myLoc);
121 Standard_Real U0,U1,V0,V1,GU0 = 0.,GU1 = 0.,GV0 = 0.,GV1 = 0.;
122 theSurface->Bounds(U0,U1,V0,V1);
123 if (::Precision::IsInfinite (U0) || ::Precision::IsInfinite (U1) ||
124 ::Precision::IsInfinite (V0) || ::Precision::IsInfinite (V1))
125 BRepTools::UVBounds(Face, GU0, GU1, GV0, GV1);
127 if (::Precision::IsInfinite (V0)) V0 = GV0;
128 if (::Precision::IsInfinite (V1)) V1 = GV1;
129 gp_Pnt P0 = theSurface->Value(U0,(V0+V1)/2.);
130 gp_Pnt P1 = theSurface->Value(U1,(V0+V1)/2.);
131 if (P0.Distance(P1) > Precision::Confusion()*10)
132 myUClosed = Standard_False;
135 if (::Precision::IsInfinite (U0)) U0 = GU0;
136 if (::Precision::IsInfinite (U1)) U1 = GU1;
137 gp_Pnt P0 = theSurface->Value((U0+U1)/2.,V0);
138 gp_Pnt P1 = theSurface->Value((U0+U1)/2.,V1);
139 if (P0.Distance(P1) > Precision::Confusion()*10)
140 myVClosed = Standard_False;
142 // DTK-CKY 100531 end
146 TopoDS_Shape tmpF = Face.Oriented ( TopAbs_FORWARD );
147 myFace = TopoDS::Face ( tmpF ); // for correct dealing with seams
148 myOrient = Face.Orientation();
150 myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
152 // Compute resolution (checking in 2d is necessary for splitting
153 // degenerated edges and avoiding NotClosed)
154 myUResolution = myVResolution = RealLast();
155 for ( Standard_Integer i=1; i <= myGrid->NbUPatches(); i++ ) {
156 Standard_Real uRange = myGrid->UJointValue(i+1)-myGrid->UJointValue(i);
157 for ( Standard_Integer j=1; j <= myGrid->NbVPatches(); j++ ) {
158 Standard_Real vRange = myGrid->VJointValue(j+1)-myGrid->VJointValue(j);
159 Standard_Real u1,u2,v1,v2;
160 myGrid->Patch(i,j)->Bounds(u1,u2,v1,v2);
161 GeomAdaptor_Surface GAS ( myGrid->Patch(i,j) );
162 Standard_Real ures = GAS.UResolution ( 1. )*uRange/(u2-u1);
163 Standard_Real vres = GAS.VResolution ( 1. )*vRange/(v2-v1);
164 if ( ures >0. && myUResolution > ures ) myUResolution = ures;
165 if ( vres >0. && myVResolution > vres ) myVResolution = vres;
168 if ( myUResolution == RealLast() ) myUResolution = ::Precision::Parametric ( 1. );
169 if ( myVResolution == RealLast() ) myVResolution = ::Precision::Parametric ( 1. );
172 //=======================================================================
175 //=======================================================================
177 Standard_Boolean ShapeFix_ComposeShell::Perform ()
179 myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
180 myInvertEdgeStatus = Standard_False;
182 ShapeFix_SequenceOfWireSegment seqw; // working data: wire segments
184 // Init seqw by initial set of wires (with corresponding orientation)
186 if(seqw.Length() == 0) {
187 myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_FAIL6 );
188 return Standard_False;
191 // Split edges in the wires by grid and add internal segments of grid (parts of cutting lines)
192 SplitByGrid ( seqw );
194 // Split all the wires into segments by common vertices (intersections)
197 // Then, collect resulting wires
198 ShapeFix_SequenceOfWireSegment wires; // resulting wires
199 CollectWires ( wires, seqw );
201 // And construct resulting faces
202 TopTools_SequenceOfShape faces;
203 DispatchWires ( faces, wires );
205 // Finally, construct resulting shell
206 if ( faces.Length() !=1 ) {
210 for ( Standard_Integer i=1; i <= faces.Length(); i++ )
211 B.Add ( S, faces(i) );
214 else myResult = faces(1);
215 myResult.Orientation ( myOrient );
217 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
218 return Standard_True;
221 //=======================================================================
222 //function : SplitEdges
224 //=======================================================================
226 void ShapeFix_ComposeShell::SplitEdges ()
228 myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
230 ShapeFix_SequenceOfWireSegment seqw; // working data: wire segments
232 // Init seqw by initial set of wires (with corresponding orientation)
235 // Split edges in the wires by grid and add internal segments of grid (parts of cutting lines)
236 SplitByGrid ( seqw );
239 //=======================================================================
242 //=======================================================================
244 const TopoDS_Shape& ShapeFix_ComposeShell::Result () const
249 //=======================================================================
252 //=======================================================================
254 Standard_Boolean ShapeFix_ComposeShell::Status (const ShapeExtend_Status status) const
256 return ShapeExtend::DecodeStatus ( myStatus, status );
259 //=======================================================================
260 // PRIVATE (working) METHODS
261 //=======================================================================
263 #define TOLINT 1.e-10 // precision for intersection
265 // Local definitions: characteristics of intersection point
267 #define IOR_UNDEF 0 // undefined side
268 #define IOR_LEFT 1 // to left side of cutting line
269 #define IOR_RIGHT 2 // to right side of cutting line
270 #define IOR_BOTH 3 // crossing
271 #define IOR_POS 4 // in case of cycle on full period, whether first point is right
273 #define ITP_INTER 8 // crossing
274 #define ITP_BEGSEG 16 // start of tangential segment
275 #define ITP_ENDSEG 32 // stop of tangential segment
276 #define ITP_TANG 64 // tangential point
278 //=======================================================================
279 //function : PointLineDeviation
281 //=======================================================================
282 // Return (signed) deviation of point from line
283 static Standard_Real PointLineDeviation (const gp_Pnt2d &p, const gp_Lin2d &line)
285 gp_Dir2d dir = line.Direction();
286 gp_Dir2d n ( -dir.Y(), dir.X() );
287 return n.XY() * ( p.XY() - line.Location().XY() );
290 //=======================================================================
291 //function : PointLinePosition
293 //=======================================================================
294 // Define position of point relative to line
295 static Standard_Integer PointLinePosition (const gp_Pnt2d &p, const gp_Lin2d &line,
298 dev = PointLineDeviation ( p, line );
299 return ( dev > TOLINT ? IOR_LEFT : ( dev < -TOLINT ? IOR_RIGHT : IOR_UNDEF ) );
302 //=======================================================================
303 //function : PointLinePosition
305 //=======================================================================
306 // Define position of point relative to line
307 static Standard_Integer PointLinePosition (const gp_Pnt2d &p, const gp_Lin2d &line)
310 return PointLinePosition ( p, line, dev );
313 //=======================================================================
314 //function : ParamPointsOnLine
316 //=======================================================================
317 // Compute parameter of point on line
318 static inline Standard_Real ParamPointOnLine (const gp_Pnt2d &p, const gp_Lin2d &line)
320 return line.Direction().XY() * ( p.XY() - line.Location().XY() );
323 //=======================================================================
324 //function : ParamPointsOnLine
326 //=======================================================================
327 // Compute parameter of two points on line (as intersection of segment)
328 static Standard_Real ParamPointsOnLine (const gp_Pnt2d &p1, const gp_Pnt2d &p2,
329 const gp_Lin2d &line)
331 Standard_Real dist1 = PointLineDeviation ( p1, line );
332 Standard_Real dist2 = PointLineDeviation ( p2, line );
333 // in most cases, one of points is on line
334 if ( Abs ( dist1 ) < ::Precision::PConfusion() ) {
335 if ( Abs ( dist2 ) < ::Precision::PConfusion() )
336 return 0.5 * ( ParamPointOnLine ( p1, line ) + ParamPointOnLine ( p2, line ) );
337 return ParamPointOnLine ( p1, line );
339 if ( Abs ( dist2 ) < ::Precision::PConfusion() )
340 return ParamPointOnLine ( p2, line );
342 if ( dist2 * dist1 >0 )
343 return 0.5 * ( ParamPointOnLine ( p1, line ) + ParamPointOnLine ( p2, line ) );
344 // else compute intersection
345 return ( ParamPointOnLine ( p1, line ) * dist2 -
346 ParamPointOnLine ( p2, line ) * dist1 ) / ( dist2 - dist1 );
349 //=======================================================================
350 //function : ProjectPointOnLine
352 //=======================================================================
353 // Compute projection of point on line
354 static inline gp_Pnt2d ProjectPointOnLine (const gp_Pnt2d &p, const gp_Lin2d &line)
356 return line.Location().XY() + line.Direction().XY() * ParamPointOnLine ( p, line );
359 //=======================================================================
360 //function : ApplyContext
362 //=======================================================================
363 // Apply context to one edge in the wire and put result into this wire
364 static Standard_Integer ApplyContext (ShapeFix_WireSegment &wire,
365 const Standard_Integer iedge,
366 const Handle(ShapeBuild_ReShape) &context)
368 TopoDS_Edge edge = wire.Edge ( iedge );
369 TopoDS_Shape res = context->Apply ( edge );
371 if ( res.IsSame ( edge ) ) return 1;
373 if ( res.ShapeType() == TopAbs_EDGE ) {
374 wire.SetEdge ( iedge, TopoDS::Edge ( res ) );
378 Standard_Integer index = iedge;
380 Handle(ShapeExtend_WireData) segw = new ShapeExtend_WireData;
381 segw->ManifoldMode() = Standard_False;
382 for ( TopoDS_Iterator it(res); it.More(); it.Next() ) {
383 TopoDS_Edge E = TopoDS::Edge ( it.Value() );
384 if ( ! E.IsNull() ) segw->Add ( E );
386 else cout << "Error: ShapeFix_ComposeShell, ApplyContext: wrong mapping of edge" << endl;
390 // add edges into the wire in correct order
391 if ( segw->NbEdges() >0 ) {
392 Standard_Integer ind, iumin, iumax, ivmin, ivmax;
393 wire.GetPatchIndex ( iedge, iumin, iumax, ivmin, ivmax );
394 Standard_Integer nbEdges = segw->NbEdges();
395 for ( Standard_Integer i=1; i <= nbEdges; i++, index++ ) {
396 ind = ( edge.Orientation() == TopAbs_FORWARD || edge.Orientation() == TopAbs_INTERNAL ? i : segw->NbEdges()-i+1 );
397 TopoDS_Edge aE = segw->Edge ( ind );
398 if ( i==1 ) wire.SetEdge ( index, aE );
399 else wire.AddEdge ( index, aE, iumin, iumax, ivmin, ivmax );
403 else cout << "Warning: ShapeFix_ComposeShell, ApplyContext: edge is to remove - not implemented" << endl;
406 return index - iedge;
410 //=======================================================================
411 //function : IsCoincided
413 //=======================================================================
414 // check points coincidence
415 static inline Standard_Boolean IsCoincided (const gp_Pnt2d &p1, const gp_Pnt2d &p2,
416 const Standard_Real UResolution,
417 const Standard_Real VResolution,
418 const Standard_Real tol)
420 //pdn Maximal accuracy is working precision of intersector.
421 Standard_Real UTolerance = UResolution * tol;
422 Standard_Real VTolerance = VResolution * tol;
423 return Abs ( p1.X() - p2.X() ) <= Max(TOLINT,UTolerance) &&
424 Abs ( p1.Y() - p2.Y() ) <= Max(TOLINT,VTolerance);
428 //=======================================================================
429 //function : GetPatchIndex
431 //=======================================================================
433 // computes index for the patch by given parameter Param
434 static Standard_Integer GetPatchIndex (const Standard_Real Param,
435 const Handle(TColStd_HArray1OfReal) &Params,
436 const Standard_Boolean isClosed)
438 Standard_Integer NP = Params->Upper();
439 Standard_Real period = Params->Value(NP) - Params->Value(1);
440 Standard_Real shift = 0;
442 shift = ShapeAnalysis::AdjustToPeriod ( Param, Params->Value(1), Params->Value(NP) );
443 Standard_Real p = Param + shift;
445 // locate patch: the same algo as in SE_CS::LocateParameter()
446 Standard_Integer i; // svv #1
447 for ( i = 2; i < NP; i++ ) {
448 // Standard_Real par = Params->Value(i);
449 if ( p < Params->Value(i) ) break;
453 Standard_Real ish = shift / period;
454 Standard_Integer ishift = (Standard_Integer)( ish <0 ? ish - 0.5 : ish + 0.5 );
455 return i - ishift * ( NP - 1 );
458 //=======================================================================
459 //function : LoadWires
461 //=======================================================================
463 void ShapeFix_ComposeShell::LoadWires (ShapeFix_SequenceOfWireSegment &seqw) const
467 // Init seqw by initial set of wires (with corresponding orientation)
468 for ( TopoDS_Iterator iw(myFace,Standard_False); iw.More(); iw.Next() )
470 TopoDS_Shape tmpW = Context()->Apply ( iw.Value() ) ;
471 if(tmpW.ShapeType() != TopAbs_WIRE)
473 if(tmpW.ShapeType() == TopAbs_VERTEX)
475 ShapeFix_WireSegment seg; //(( isOuter ? TopAbs_REVERSED : TopAbs_FORWARD ) );
476 seg.SetVertex(TopoDS::Vertex(tmpW));
477 seg.Orientation(tmpW.Orientation());
484 TopoDS_Wire wire = TopoDS::Wire ( tmpW );
486 Standard_Boolean isNonManifold = ( wire.Orientation() != TopAbs_REVERSED &&
487 wire.Orientation() != TopAbs_FORWARD );
489 // protect against INTERNAL/EXTERNAL wires
490 // if ( wire.Orientation() != TopAbs_REVERSED &&
491 // wire.Orientation() != TopAbs_FORWARD ) continue;
493 // determine orientation of the wire
494 // TopoDS_Face face = TopoDS::Face ( myFace.EmptyCopied() );
495 // B.Add ( face, wire );
496 // Standard_Boolean isOuter = ShapeAnalysis::IsOuterBound ( face );
500 Handle(ShapeExtend_WireData) sbwd = new ShapeExtend_WireData ( wire ,Standard_True,Standard_False);
501 //pdn protection againts of wires w/o edges
502 Standard_Integer nbEdges = sbwd->NbEdges();
505 //wire segments for non-manifold topology should have INTERNAL orientation
506 ShapeFix_WireSegment seg ( sbwd, TopAbs_INTERNAL);
512 //splitting wires containing manifold and non-manifold parts on a separate
514 Handle(ShapeExtend_WireData) sbwdM = new ShapeExtend_WireData();
515 Handle(ShapeExtend_WireData) sbwdNM = new ShapeExtend_WireData();
516 sbwdNM->ManifoldMode() = Standard_False;
517 TopoDS_Iterator aIt(wire);
518 for( ; aIt.More(); aIt.Next())
520 TopoDS_Edge E = TopoDS::Edge ( aIt.Value() );
521 if(E.Orientation() == TopAbs_FORWARD || E.Orientation() == TopAbs_REVERSED)
527 Standard_Integer nbMEdges = sbwdM->NbEdges();
528 Standard_Integer nbNMEdges = sbwdNM->NbEdges();
532 ShapeFix_WireSegment seg ( sbwdNM, TopAbs_INTERNAL); //(( isOuter ? TopAbs_REVERSED : TopAbs_FORWARD ) );
537 // Orientation is set so as to allow the segment to be traversed in only one direction
539 Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire;
541 Standard_Integer stat=0;
542 Handle(Geom_Surface) gs = BRep_Tool::Surface(myFace);
543 if( gs->IsUPeriodic() && gs->IsVPeriodic() )
545 // For torus-like shapes, first reorder in 2d since reorder is indifferent in 3d
546 ShapeAnalysis_WireOrder sawo(Standard_False, 0);
547 ShapeAnalysis_Edge sae;
548 for(Standard_Integer i = 1; i <= nbMEdges; i++) {
550 Handle(Geom2d_Curve) c2d;
552 TopoDS_Shape tmpF = myFace.Oriented(TopAbs_FORWARD);
553 if(!sae.PCurve(sbwdM->Edge(i),TopoDS::Face(tmpF),c2d,f,l))
555 sawo.Add(c2d->Value(f).XY(),c2d->Value(l).XY());
559 stat = (sawo.Status() < 0 ? -1 : 1);
560 sfw->FixReorder(sawo);
564 if (sfw->StatusReorder(ShapeExtend_DONE3))
570 TopoDS_Shape dummy = myFace.EmptyCopied();
571 TopoDS_Face face = TopoDS::Face ( dummy );
572 B.Add ( face, wire );
573 Standard_Boolean isOuter = ShapeAnalysis::IsOuterBound ( face );
574 TopoDS_Wire w = sbwdM->Wire();
575 dummy = myFace.EmptyCopied();
576 face = TopoDS::Face ( dummy );
578 Standard_Boolean isOuterAfter = ShapeAnalysis::IsOuterBound ( face );
579 if(isOuter!=isOuterAfter)
580 sbwdM->Reverse(face);
583 ShapeFix_WireSegment seg ( sbwdM, TopAbs_REVERSED ); //(( isOuter ? TopAbs_REVERSED : TopAbs_FORWARD ) );
590 //=======================================================================
591 //function : ComputeCode
592 //purpose : compute code for wire segment between two intersections (by deviation)
593 //=======================================================================
595 Standard_Integer ShapeFix_ComposeShell::ComputeCode (const Handle(ShapeExtend_WireData) &wire,
596 const gp_Lin2d &line,
597 const Standard_Integer begInd,
598 const Standard_Integer endInd,
599 const Standard_Real begPar,
600 const Standard_Real endPar,
601 const Standard_Boolean isInternal)
603 Standard_Integer code = IOR_UNDEF;
605 ShapeAnalysis_Edge sae;
606 const Standard_Integer NPOINTS = 5; // number of points for measuring deviation
608 // track special closed case: segment starts at end of edge and ends at its beginning
609 Standard_Integer special = ( begInd == endInd &&
610 ( wire->Edge(begInd).Orientation() == TopAbs_FORWARD ||
611 wire->Edge(begInd).Orientation() == TopAbs_INTERNAL) ==
612 ( begPar > endPar ) ? 1 : 0);
613 if ( ! special && begInd == endInd && begPar == endPar && (myClosedMode || isInternal))
616 // for tracking cases in closed mode
617 Standard_Boolean begin=Standard_True;
618 Standard_Real shift=0;
621 // check if segment is tangency
622 // Segment is considered as tangency if deviation of pcurve from line
623 // (in 2d) measured by NPOINTS points is less than tolerance of edge
624 // (recomputed to 2d using Resolution).
626 Standard_Integer nb = wire->NbEdges();
628 Standard_Integer i; // svv #1
629 for ( i=begInd; ; i++ ) {
631 TopoDS_Edge edge = wire->Edge ( i );;
633 Handle(Geom2d_Curve) c2d;
635 if ( ! sae.PCurve ( edge, myFace, c2d, f, l, Standard_False ) ) {
636 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
639 Standard_Real tol = LimitTolerance(BRep_Tool::Tolerance ( edge ));
640 Standard_Boolean isreversed = ( edge.Orientation() == TopAbs_REVERSED );
642 Standard_Real par1 = ( i == begInd && special >=0 ? begPar : ( isreversed ? l : f ) );
643 Standard_Real par2 = ( i == endInd && special <=0 ? endPar : ( isreversed ? f : l ) );
644 Standard_Real dpar = ( par2 - par1 ) / ( NPOINTS - 1 );
645 Standard_Integer np = ( Abs ( dpar ) < ::Precision::PConfusion() ? 1 : NPOINTS );
646 Standard_Integer j; // svv #1
647 for ( j=0; j < np; j++ ) {
648 Standard_Real par = par1 + dpar * j;
649 gp_Pnt2d p2d = c2d->Value ( par );
650 if ( myClosedMode ) {
651 if ( myUClosed && Abs ( line.Direction().X() ) < ::Precision::PConfusion() ) {
652 if ( begin ) shift = ShapeAnalysis::AdjustByPeriod ( p2d.X(), line.Location().X(), myUPeriod );
653 else if ( ! j ) shift = ShapeAnalysis::AdjustByPeriod ( p2d.X()-p2d0.X(), 0., myUPeriod );
654 p2d.SetX ( p2d.X() + shift );
656 if ( myVClosed && Abs ( line.Direction().Y() ) < ::Precision::PConfusion() ) {
657 if ( begin ) shift = ShapeAnalysis::AdjustByPeriod ( p2d.Y(), line.Location().Y(), myVPeriod );
658 else if ( ! j ) shift = ShapeAnalysis::AdjustByPeriod ( p2d.Y()-p2d0.Y(), 0., myVPeriod );
659 p2d.SetY ( p2d.Y() + shift );
661 begin = Standard_False;
664 Standard_Integer pos = PointLinePosition ( p2d, line );
665 if ( pos == IOR_UNDEF ) continue;
667 // analyse the deviation
668 gp_Pnt2d p2dl = ProjectPointOnLine ( p2d, line );
669 if(!IsCoincided ( p2d, p2dl, myUResolution, myVResolution, tol )) {
670 if(!myClosedMode) { code = pos; break; }
676 if ( j < np ) { i = 0; break; } // not tangency
678 if ( special <=0 ) break;
682 if ( myClosedMode ) {
683 if ( code != IOR_UNDEF && ! begin ) {
684 // in closed mode, if segment is of 2*pi length, it is BOTH
685 Standard_Real dev = PointLineDeviation ( p2d0, line );
686 if ( myUClosed && Abs ( line.Direction().X() ) < ::Precision::PConfusion() ) {
687 if ( Abs ( Abs ( dev ) - myUPeriod ) < 0.1 * myUPeriod ) {
689 if ( dev >0 ) code |= IOR_POS;
691 else if(code==IOR_BOTH)
694 if ( myVClosed && Abs ( line.Direction().Y() ) < ::Precision::PConfusion() ) {
695 if ( Abs ( Abs ( dev ) - myVPeriod ) < 0.1 * myVPeriod ) {
697 if ( dev >0 ) code |= IOR_POS;
699 else if(code==IOR_BOTH)
705 if ( i ) code = IOR_UNDEF; // tangency
706 else if ( code == IOR_BOTH ) { // parity error in intersector
708 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
710 cout << "Warning: ShapeFix_ComposeShell::ComputeCode: lost intersection point" << endl;
716 //=======================================================================
717 //function : DistributeSplitPoints
719 //=======================================================================
720 // After applying context to (seam) edge, distribute its indices on new edges,
721 // according to their parameters on that edge
722 static void DistributeSplitPoints (const Handle(ShapeExtend_WireData) &sbwd,
723 const TopoDS_Face myFace,
724 const Standard_Integer index,
725 const Standard_Integer nsplit,
726 TColStd_SequenceOfInteger& indexes,
727 const TColStd_SequenceOfReal& values)
729 Standard_Boolean isreversed = ( nsplit >0 && sbwd->Edge(index).Orientation() == TopAbs_REVERSED );
731 TColStd_Array1OfReal params(0,nsplit);
732 Standard_Integer i; // svv #1
733 for ( i=0; i < nsplit; i++ ) {
735 BRep_Tool::Range ( sbwd->Edge(index+i), myFace, f, l );
736 params.SetValue ( i, ( isreversed ? l : f ) );
739 for ( i=1; i <= indexes.Length() && indexes(i) < index; i++ );
740 for ( Standard_Integer shift = 1; i <= indexes.Length() && indexes(i) == index; i++ ) {
741 while ( shift < nsplit && isreversed != (values(i) > params(shift)) ) shift++;
742 indexes.SetValue ( i, index + shift - 1 );
744 for ( ; i <= indexes.Length(); i++ )
745 indexes.SetValue ( i, indexes(i) + nsplit - 1 );
748 //=======================================================================
749 //function : CheckByCurve3d
751 //=======================================================================
752 static Standard_Integer CheckByCurve3d (const gp_Pnt &pos,
753 const Handle(Geom_Curve) &c3d,
754 const Standard_Real param,
756 const Standard_Real tol)
758 if ( c3d.IsNull() ) return Standard_True;
759 gp_Pnt p = c3d->Value(param);
760 if ( T.Form() != gp_Identity ) p.Transform ( T );
761 return pos.SquareDistance ( p ) <= tol * tol;
764 //=======================================================================
765 //function : DefinePatch
767 //=======================================================================
768 static void DefinePatch (ShapeFix_WireSegment &wire, const Standard_Integer code,
769 const Standard_Boolean isCutByU, const Standard_Integer cutIndex,
770 const Standard_Integer number = -1)
772 Standard_Integer nb = (number > 0 ? number : wire.NbEdges());
774 if ( ! ( code & IOR_LEFT ) ) wire.DefineIUMin ( nb, cutIndex );
775 if ( ! ( code & IOR_RIGHT ) ) wire.DefineIUMax ( nb, cutIndex );
778 if ( ! ( code & IOR_RIGHT ) ) wire.DefineIVMin ( nb, cutIndex );
779 if ( ! ( code & IOR_LEFT ) ) wire.DefineIVMax ( nb, cutIndex );
783 //=======================================================================
784 //function : GetGridResolution
786 //=======================================================================
787 static Standard_Real GetGridResolution(const Handle(TColStd_HArray1OfReal) SplitValues,
788 const Standard_Integer cutIndex)
790 Standard_Integer nb = SplitValues->Length();
791 Standard_Real leftLen = (cutIndex > 1 ? SplitValues->Value(cutIndex) - SplitValues->Value(cutIndex-1) :
792 SplitValues->Value(nb) -SplitValues->Value(nb-1));
793 Standard_Real rigthLen =(cutIndex < nb ? SplitValues->Value(cutIndex+1)-SplitValues->Value(cutIndex) :
794 SplitValues->Value(2) - SplitValues->Value(1));
795 return Min(leftLen,rigthLen)/3.;
798 //=======================================================================
799 //function : SplitWire
801 //=======================================================================
803 ShapeFix_WireSegment ShapeFix_ComposeShell::SplitWire (ShapeFix_WireSegment &wire,
804 TColStd_SequenceOfInteger& indexes,
805 const TColStd_SequenceOfReal& values,
806 TopTools_SequenceOfShape& vertices,
807 const TColStd_SequenceOfInteger &SegmentCodes,
808 const Standard_Boolean isCutByU,
809 const Standard_Integer cutIndex)
812 ShapeFix_WireSegment result;
813 Handle(ShapeAnalysis_Surface) aSurfTool =
814 new ShapeAnalysis_Surface ( BRep_Tool::Surface (myFace) );
815 Standard_Integer nbSplits = indexes.Length();
816 ShapeAnalysis_Edge sae;
817 Standard_Integer start = 1;
818 TopAbs_Orientation anWireOrient = wire.Orientation();
820 if ( ! myLoc.IsIdentity() ) T = myLoc.Inverted().Transformation();
822 // Processing edge by edge (assuming that split points are sorted along the wire)
823 for ( Standard_Integer i = 1; i <= wire.NbEdges(); i++ ) {
825 // for already splitted seam edge, redistribute its splitting points
826 Standard_Integer nsplit = ApplyContext ( wire, i, Context() );
828 DistributeSplitPoints ( wire.WireData(), myFace, i, nsplit, indexes, values );
831 cout << "Error: ShapeFix_ComposeShell::SplitWire: edge dismissed" << endl;
837 TopoDS_Edge edge = wire.Edge(i);
839 Standard_Integer iumin, iumax, ivmin, ivmax;
840 wire.GetPatchIndex ( i, iumin, iumax, ivmin, ivmax );
842 // Position code for first segment of edge
843 Standard_Integer code = SegmentCodes ( start >1 ? start-1 : SegmentCodes.Length() );
845 // Defining split parameters on edge
846 Standard_Integer stop = start;
847 while ( stop <= nbSplits && indexes(stop) == i ) stop++;
848 if ( stop == start ) {
849 result.AddEdge ( 0, edge, iumin, iumax, ivmin, ivmax );
850 if(code!=0 || wire.Orientation()!=TopAbs_EXTERNAL) // pdn 0 code handling for extertnal wires
851 DefinePatch ( result, code, isCutByU, cutIndex );
854 //find non-manifold vertices on edge
855 TopTools_SequenceOfShape aNMVertices;
856 TopoDS_Iterator aIt(edge,Standard_False);
857 for( ; aIt.More(); aIt.Next()) {
858 if(aIt.Value().Orientation() != TopAbs_FORWARD &&
859 aIt.Value().Orientation() != TopAbs_REVERSED)
860 aNMVertices.Append(aIt.Value());
863 // Collect data on edge
864 Standard_Real tolEdge = BRep_Tool::Tolerance(edge);
865 Standard_Real tol = LimitTolerance( tolEdge );
866 TopoDS_Vertex prevV = sae.FirstVertex(edge);
867 TopoDS_Vertex lastV = sae.LastVertex(edge);
868 Standard_Real prevVTol = LimitTolerance( BRep_Tool::Tolerance(prevV) );
869 Standard_Real lastVTol = LimitTolerance( BRep_Tool::Tolerance(lastV) );
870 gp_Pnt prevVPnt = BRep_Tool::Pnt(prevV);
871 gp_Pnt lastVPnt = BRep_Tool::Pnt(lastV);
872 if ( T.Form() != gp_Identity ) {
873 prevVPnt.Transform ( T );
874 lastVPnt.Transform ( T );
877 Handle(Geom_Curve) c3d;
878 Standard_Real f3d, l3d;
879 if ( ! sae.Curve3d ( edge, c3d, f3d, l3d ) ) { // not a crime
884 Standard_Real firstPar, lastPar;
885 Handle(Geom2d_Curve) C2d;
886 if ( ! sae.PCurve ( edge, myFace, C2d, firstPar, lastPar ) ) {
887 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
889 //finding sequence of non-manifold parameters
890 Standard_Integer nbNMVert = aNMVertices.Length();
891 TColStd_SequenceOfReal aNMVertParams;
893 Geom2dAdaptor_Curve adc(C2d);
894 Standard_Integer n =1;
895 for( ; n<= nbNMVert; n++) {
896 gp_Pnt apV = BRep_Tool::Pnt(TopoDS::Vertex(aNMVertices.Value(n)));
897 Standard_Real apar =firstPar;
898 Standard_Real adist2 =RealLast();
901 ShapeAnalysis_Curve asae;
902 adist2 = asae.Project(c3d,apV,Precision::Confusion(),aPproj,apar);
906 gp_Pnt2d aP2d = aSurfTool->ValueOfUV(apV,Precision::Confusion());
907 Extrema_ExtPC2d aExtr(aP2d,adc);
908 if(aExtr.IsDone() && aExtr.NbExt()) {
909 adist2 = aExtr.SquareDistance(1);
910 Standard_Integer index =1;
911 Standard_Integer k =2;
912 for( ; k <= aExtr.NbExt();k++) {
913 Standard_Real ad2 = aExtr.SquareDistance(k);
919 apar = aExtr.Point(index).Parameter();
922 aNMVertParams.Append(apar);
926 //pdn Claculating parametric shift
927 Standard_Boolean sp = (f3d == firstPar && l3d == lastPar);
928 Standard_Real span2d = lastPar - firstPar;
929 // Standard_Real ln2d = lastPar-prevPar;
930 // Standard_Real ln3d = l3d - f3d;
931 // Standard_Real fact = ln2d/ln3d;
932 // Standard_Real shift = prevPar - f3d*fact;
933 Standard_Real prevPar = firstPar;
934 gp_Pnt2d prevPnt2d = C2d->Value(prevPar);
935 gp_Pnt2d lastPnt2d = C2d->Value(lastPar);
936 gp_Pnt prevPnt = myGrid->Value ( prevPnt2d );
937 gp_Pnt lastPnt = myGrid->Value ( lastPnt2d );
938 Standard_Boolean isPeriodic = C2d->IsPeriodic();
939 Standard_Real aPeriod = (isPeriodic ? C2d->Period() :0.);
942 Standard_Integer NbEdgesStart = result.NbEdges();
943 Standard_Boolean splitted = Standard_False;
944 Standard_Real currPar=lastPar; //SK
945 for ( Standard_Integer j = start; j <= stop; prevPar = currPar, j++ ) {
946 if ( ! splitted && j >= stop ) {// no splitting at all
947 // code = SegmentCodes ( j >1 ? j-1 : SegmentCodes.Length() ); // classification code
950 currPar = ( j < stop ? values.Value(j) : lastPar );
951 //fix for case when pcurve is periodic and first parameter of edge is more than 2P
952 //method ShapeBuild_Edge::CopyRanges shift pcurve to range 0-2P and parameters of cutting
953 //should be shifted too. gka SAMTECH 28.07.06
955 if (currPar > (Max(lastPar,firstPar) +Precision::PConfusion()) ||
956 currPar < (Min(firstPar,lastPar)- Precision::PConfusion())) {
957 Standard_Real aShift = ShapeAnalysis::AdjustByPeriod(currPar, (firstPar+lastPar)*0.5,aPeriod);
965 // Try to adjust current splitting point to previous or end of edge
966 Standard_Boolean doCut = Standard_True;
968 if ( Abs ( currPar - lastPar ) < ::Precision::PConfusion() ) {
970 doCut = Standard_False;
972 else if ( Abs ( currPar - prevPar ) < ::Precision::PConfusion() ) {
973 vertices.Append ( prevV );
974 code = SegmentCodes ( j ); // classification code - update for next segment
975 continue; // no splitting at this point, go to next one
978 currPnt2d = C2d->Value(currPar);
979 currPnt = myGrid->Value ( currPnt2d );
980 if ( currPnt.Distance ( lastVPnt ) <= lastVTol &&
981 lastPnt.Distance ( currPnt ) <= tol &&
982 CheckByCurve3d ( lastVPnt, c3d, f3d+(currPar-firstPar)*(l3d-f3d)/span2d,
984 lastPnt.Distance ( myGrid->Value ( C2d->Value(0.5*(currPar+lastPar)) ) ) <= tol ) {
986 Standard_Real uRes = myUResolution;
987 Standard_Real vRes = myVResolution;
989 Standard_Real gridRes = GetGridResolution(myGrid->UJointValues(),cutIndex)/tol;
990 uRes = Min(myUResolution,gridRes);
993 Standard_Real gridRes = GetGridResolution(myGrid->VJointValues(),cutIndex)/tol;
994 vRes = Min(myVResolution,gridRes);
996 if ( IsCoincided ( lastPnt2d, currPnt2d, uRes, vRes, tol ) &&
997 IsCoincided ( lastPnt2d, C2d->Value(0.5*(currPar+lastPar)), uRes, vRes, tol ) )
998 doCut = Standard_False;
1000 else if ( currPnt.Distance ( prevVPnt ) <= prevVTol &&
1001 prevPnt.Distance ( currPnt ) <= tol &&
1002 CheckByCurve3d ( prevVPnt, c3d, f3d+(currPar-firstPar)*(l3d-f3d)/span2d,
1004 prevPnt.Distance ( myGrid->Value ( C2d->Value(0.5*(currPar+prevPar)) ) ) <= tol ) {
1006 Standard_Real uRes = myUResolution;
1007 Standard_Real vRes = myVResolution;
1009 Standard_Real gridRes = GetGridResolution(myGrid->UJointValues(),cutIndex)/tol;
1010 uRes = Min(myUResolution,gridRes);
1013 Standard_Real gridRes = GetGridResolution(myGrid->VJointValues(),cutIndex)/tol;
1014 vRes = Min(myVResolution,gridRes);
1016 if ( IsCoincided ( prevPnt2d, currPnt2d, uRes, vRes, tol ) &&
1017 IsCoincided ( prevPnt2d, C2d->Value(0.5*(currPar+prevPar)), uRes, vRes, tol ) ) {
1018 vertices.Append ( prevV );
1019 code = SegmentCodes ( j ); // classification code - update for next segment
1020 continue; // no splitting at this point, go to next one
1023 //:abv 28.05.02: OCC320 Sample_2: if maxtol = 1e-7, the vertex tolerance
1024 // is actually ignored - protect against new vertex on degenerated edge
1025 else if ( BRep_Tool::Degenerated(edge) && prevV.IsSame(lastV) ) {
1029 // classification code for current segment
1030 if ( j > start ) code = SegmentCodes ( j >1 ? j-1 : SegmentCodes.Length() );
1032 // if not adjusted, make new vertex
1034 B.MakeVertex ( V, currPnt.Transformed(myLoc.Transformation()), tolEdge );
1035 vertices.Append ( V );
1037 // else adjusted to end, fill all resting vertices
1038 else if ( ! doCut ) {
1039 for ( ; j < stop; j++ ) vertices.Append ( lastV );
1040 if ( ! splitted ) break; // no splitting at all
1043 else vertices.Append ( V );
1045 // When edge is about to be splitted, copy end vertices to protect
1046 // original shape from increasing tolerance after fixing SameParameter
1049 TopoDS_Shape emptyCopiedfV = prevV.EmptyCopied();
1050 TopoDS_Vertex fV = TopoDS::Vertex (emptyCopiedfV );
1051 Context()->Replace ( prevV, fV );
1053 if ( prevV.IsSame ( lastV ) ) {
1055 TopoDS_Shape tmpV = fV.Oriented ( lastV.Orientation() ) ;
1056 lV = TopoDS::Vertex (tmpV);
1060 TopoDS_Shape emptyCopied = lastV.EmptyCopied();
1061 lV = TopoDS::Vertex (emptyCopied);
1062 Context()->Replace ( lastV, lV );
1064 if ( V.IsSame ( lastV ) ) V = lV;
1065 else if ( V.IsSame ( prevV ) ) V = fV;
1070 // Splitting of the edge
1071 splitted = Standard_True;
1072 prevV.Orientation ( TopAbs_FORWARD );
1073 V.Orientation ( TopAbs_REVERSED );
1074 ShapeBuild_Edge sbe;
1075 TopoDS_Edge anInitEdge = edge;
1076 Standard_Boolean ismanifold = (edge.Orientation() == TopAbs_FORWARD ||
1077 edge.Orientation() == TopAbs_REVERSED);
1079 anInitEdge.Orientation(TopAbs_FORWARD);
1080 TopoDS_Edge newEdge = sbe.CopyReplaceVertices (anInitEdge, prevV, V );
1082 //addition internal vertices if they exists on edge
1083 Standard_Integer n =1;
1084 for( ; n <= aNMVertParams.Length(); n++) {
1085 Standard_Real apar = aNMVertParams.Value(n);
1086 TopoDS_Vertex aNMVert =TopoDS::Vertex(aNMVertices.Value(n));
1087 TopoDS_Vertex atmpV = TopoDS::Vertex(Context()->Apply(aNMVert));
1088 if(fabs(apar - prevPar) <= Precision::PConfusion()) {
1089 Context()->Replace(atmpV,prevV);
1090 aNMVertParams.Remove(n);
1091 aNMVertices.Remove(n);
1094 else if(fabs(apar - currPar) <= Precision::PConfusion()) {
1095 Context()->Replace(atmpV,V);
1096 aNMVertParams.Remove(n);
1097 aNMVertices.Remove(n);
1100 if(apar > prevPar && apar < currPar) {
1101 B.Add(newEdge,atmpV);
1102 aNMVertParams.Remove(n);
1103 aNMVertices.Remove(n);
1108 sbe.CopyPCurves ( newEdge, anInitEdge );
1110 Handle(ShapeAnalysis_TransferParameters) theTransferParamtool = GetTransferParamTool();
1111 theTransferParamtool->SetMaxTolerance(MaxTolerance());
1112 theTransferParamtool->Init(anInitEdge,myFace);
1113 theTransferParamtool->TransferRange(newEdge,prevPar,currPar,Standard_True);
1116 if(code == IOR_UNDEF) //tangential segment
1117 newEdge.Orientation(TopAbs_EXTERNAL);
1119 newEdge.Orientation(edge.Orientation());
1122 if(!sp && !BRep_Tool::Degenerated(newEdge))
1123 B.SameRange(newEdge, Standard_False);
1124 //pdn take into account 0 codes (if ext)
1125 if(code == 0 && wire.Orientation()==TopAbs_EXTERNAL){
1126 code = ( ( isCutByU == (j == 1) ) ? 1 : 2 );
1129 result.AddEdge ( 0, newEdge, iumin, iumax, ivmin, ivmax );
1130 DefinePatch ( result, code, isCutByU, cutIndex );
1132 // Changing prev parameters
1134 prevVTol = LimitTolerance( BRep_Tool::Tolerance ( V ) );
1135 prevVPnt = BRep_Tool::Pnt ( V );
1137 prevPnt2d = currPnt2d;
1142 // record replacement in context
1143 // NOTE: order of edges in the replacing wire corresponds to FORWARD orientation of the edge
1144 TopoDS_Wire resWire;
1145 B.MakeWire ( resWire );
1146 for ( Standard_Integer k=NbEdgesStart; k < result.NbEdges(); k++ ) {
1147 if ( edge.Orientation() == TopAbs_FORWARD || edge.Orientation() == TopAbs_INTERNAL)
1148 B.Add ( resWire, result.Edge(k+1) );
1149 else B.Add ( resWire, result.Edge(result.NbEdges()-k+NbEdgesStart) );
1151 Context()->Replace ( edge, resWire );
1154 if(anWireOrient == TopAbs_INTERNAL && code ==0) {
1155 ShapeBuild_Edge sbe;
1156 if(edge.Orientation() == TopAbs_INTERNAL)
1157 edge.Orientation(TopAbs_FORWARD);
1158 TopoDS_Edge e1 = sbe.Copy(edge,Standard_False);
1159 Handle(Geom2d_Curve) C2d2 = Handle(Geom2d_Curve)::DownCast(C2d->Copy());
1160 B.UpdateEdge(e1,C2d,C2d2,myFace,0.);
1161 e1.Orientation(TopAbs_EXTERNAL);
1162 Context()->Replace ( edge,e1);
1163 result.AddEdge ( 0,e1 , iumin, iumax, ivmin, ivmax );
1166 result.AddEdge ( 0, edge, iumin, iumax, ivmin, ivmax );
1167 if(code == 0 && wire.Orientation()==TopAbs_EXTERNAL){
1168 //pdn defining code for intersection of two isos
1169 code = ( ( isCutByU == ( Abs(firstPar-currPar) < Abs(lastPar-currPar) ) ) ? 2 : 1 );
1171 DefinePatch ( result, code, isCutByU, cutIndex );
1174 result.Orientation ( anWireOrient );
1178 //=======================================================================
1179 //function : SplitByLine
1181 //=======================================================================
1183 Standard_Boolean ShapeFix_ComposeShell::SplitByLine (ShapeFix_WireSegment &wire,
1184 const gp_Lin2d &line,
1185 const Standard_Boolean isCutByU,
1186 const Standard_Integer cutIndex,
1187 TColStd_SequenceOfReal &SplitLinePar,
1188 TColStd_SequenceOfInteger &SplitLineCode,
1189 TopTools_SequenceOfShape &SplitLineVertex)
1191 ShapeAnalysis_Edge sae;
1192 // prepare data on cutting line
1193 Handle(Geom2d_Line) jC2d = new Geom2d_Line ( line );
1194 Geom2dAdaptor_Curve jGAC(jC2d);
1196 TColStd_SequenceOfInteger IntEdgeInd; // index of intersecting edge
1197 TColStd_SequenceOfReal IntEdgePar; // parameter of intersection point on edge
1198 TColStd_SequenceOfReal IntLinePar; // parameter of intersection point on line
1200 Standard_Boolean isnonmanifold = (wire.Orientation() == TopAbs_INTERNAL);
1201 //gka correction for non-manifold vertices SAMTECH
1202 if(wire.IsVertex()) {
1203 Handle(ShapeAnalysis_Surface) aSurfTool = new ShapeAnalysis_Surface ( BRep_Tool::Surface (myFace) );
1204 TopoDS_Vertex aVert = wire.GetVertex();
1205 gp_Pnt aP3d = BRep_Tool::Pnt(aVert);
1206 gp_Pnt2d aP2d = aSurfTool->ValueOfUV(aP3d,Precision::Confusion());
1207 Standard_Real dev =0.;
1208 Standard_Integer code = PointLinePosition(aP2d,line,dev);
1209 if(code != IOR_UNDEF)
1210 return Standard_False;
1211 Standard_Real par = ParamPointOnLine (aP2d,line);
1212 SplitLinePar.Append ( par );
1213 //splitting codes for non-manifold topology should be tangential
1214 SplitLineCode.Append (ITP_TANG); //ITP_INTER);
1215 TopoDS_Vertex aVertNew;
1217 aB.MakeVertex(aVertNew,aP3d,BRep_Tool::Tolerance(aVert));
1218 aVertNew.Orientation(TopAbs_FORWARD);
1219 Context()->Replace(aVert,aVertNew);
1220 SplitLineVertex.Append (aVertNew);
1221 wire.SetVertex(aVertNew);
1222 return Standard_True;
1224 const Handle(ShapeExtend_WireData) sewd = wire.WireData();
1226 Standard_Integer nbe = sewd->NbEdges();
1228 //:abv 31.10.01: for closed mode
1229 Standard_Integer closedDir = 0;
1230 if ( myClosedMode ) {
1231 if ( myUClosed && Abs ( line.Direction().X() ) < ::Precision::PConfusion() )
1233 else if ( myVClosed && Abs ( line.Direction().Y() ) < ::Precision::PConfusion() )
1236 Standard_Real halfPeriod = 0.5 * ( closedDir ? closedDir <0 ? myUPeriod : myVPeriod : 0. );
1238 //============================================
1239 // make intersections and collect all data on intersection points
1240 Standard_Integer firstCode=0, prevCode=0;
1241 gp_Pnt2d firstPos, prevPos;
1242 Standard_Real firstDev=0., prevDev=0.;
1243 for (Standard_Integer iedge = 1; iedge <= nbe; iedge++) {
1244 TopoDS_Edge E= sewd->Edge ( iedge );
1245 Standard_Boolean isreversed = ( E.Orientation() == TopAbs_REVERSED );
1248 Handle(Geom2d_Curve) c2d;
1249 if ( ! sae.PCurve ( E, myFace, c2d, f, l, Standard_False ) ) continue;
1252 gp_Pnt2d posf = c2d->Value(f), posl = c2d->Value(l);
1253 gp_XY pppf = posf.XY(), pppl = posl.XY();
1255 // In case of ClosedMode, adjust curve and end points to period on closed surface
1256 //:abv 16.10.01: Ziegler_CADDY01.sat -18: if pcurve is longer than period,
1257 // ensure processing of all intersections
1258 Standard_Integer nbIter = 1;
1259 gp_Vec2d shiftNext(0.,0.);
1260 if ( myClosedMode ) {
1261 // get bounding box of pcurve
1262 ShapeAnalysis_Curve sac;
1264 const Standard_Integer aNbPoints = 41;
1265 sac.FillBndBox ( c2d, f, l, aNbPoints, Standard_True, box );
1266 Standard_Real umin, vmin, umax, vmax;
1267 box.Get ( umin, vmin, umax, vmax );
1269 // compute shifts and adjust points adjust
1270 if ( closedDir < 0 ) {
1271 Standard_Real x = line.Location().X();
1272 Standard_Real shift = ShapeAnalysis::AdjustToPeriod ( umin, x-myUPeriod, x );
1273 if ( shift != 0. ) {
1274 c2d = Handle(Geom2d_Curve)::DownCast ( c2d->Copy() );
1275 gp_Vec2d V ( shift, 0. );
1276 c2d->Translate ( V );
1277 pppf.SetX ( pppf.X() + shift );
1278 pppl.SetX ( pppl.X() + shift );
1280 shiftNext.SetX ( -myUPeriod );
1281 nbIter = (Standard_Integer)( 1 + Abs ( umax + shift - x ) / myUPeriod );
1282 shift = ShapeAnalysis::AdjustByPeriod ( posf.X(), x, myUPeriod );
1283 posf.SetX ( posf.X() + shift );
1284 shift = ShapeAnalysis::AdjustByPeriod ( posl.X(), x, myUPeriod );
1285 posl.SetX ( posl.X() + shift );
1287 else if ( closedDir > 0 ) {
1288 Standard_Real y = line.Location().Y();
1289 Standard_Real shift = ShapeAnalysis::AdjustToPeriod ( vmin, y-myVPeriod, y );
1290 if ( shift != 0. ) {
1291 c2d = Handle(Geom2d_Curve)::DownCast ( c2d->Copy() );
1292 gp_Vec2d V ( 0., shift );
1293 c2d->Translate ( V );
1294 pppf.SetY ( pppf.Y() + shift );
1295 pppl.SetY ( pppl.Y() + shift );
1297 shiftNext.SetY ( -myVPeriod );
1298 nbIter = (Standard_Integer)( 1 + Abs ( umax + shift - y ) / myVPeriod );
1299 shift = ShapeAnalysis::AdjustByPeriod ( posf.Y(), y, myVPeriod );
1300 posf.SetY ( posf.Y() + shift );
1301 shift = ShapeAnalysis::AdjustByPeriod ( posl.Y(), y, myVPeriod );
1302 posl.SetY ( posl.Y() + shift );
1306 // detect intersections at junction of two edges
1307 gp_Pnt2d pos = ( isreversed ? posl : posf );
1309 Standard_Integer code = PointLinePosition ( pos, line, dev );
1310 if ( iedge ==1 ) { firstCode = code; firstPos = pos; firstDev = dev; }
1311 else if ( code == IOR_UNDEF || code != prevCode ) {
1312 if ( ! closedDir || Abs ( dev - prevDev ) < halfPeriod ) {
1313 IntLinePar.Append ( ParamPointsOnLine ( pos, prevPos, line ) ); // !! - maybe compute exactly ?
1314 IntEdgePar.Append ( isreversed ? l : f );
1315 IntEdgeInd.Append ( iedge );
1319 // fill data on end point (for next edge)
1320 pos = ( isreversed ? posf : posl );
1321 prevCode = PointLinePosition ( pos, line, prevDev );
1324 // cycle with shift in order to track all possible intersections
1325 for ( Standard_Integer iter=1; iter <= nbIter; iter++ ) {
1326 // data for intersection
1327 IntRes2d_Domain iDom ( pppf, f, TOLINT, pppl, l, TOLINT );
1328 Geom2dAdaptor_Curve iGAC(c2d);
1331 Geom2dInt_GInter Inter;
1332 Inter.Perform ( jGAC, /*jDom,*/ iGAC, iDom, TOLINT, TOLINT );
1334 // Fill arrays with new intersection points
1335 if ( Inter.IsDone() ) {
1337 for ( i = 1; i <= Inter.NbPoints(); i++ ) {
1338 IntRes2d_IntersectionPoint IP = Inter.Point (i);
1339 IntLinePar.Append ( IP.ParamOnFirst() );
1340 IntEdgePar.Append ( IP.ParamOnSecond() );
1342 for ( i = 1; i <= Inter.NbSegments(); i++ ) {
1343 IntRes2d_IntersectionSegment IS = Inter.Segment (i);
1344 if ( IS.HasFirstPoint() ) {
1345 IntRes2d_IntersectionPoint IP = IS.FirstPoint();
1346 IntLinePar.Append ( IP.ParamOnFirst() );
1347 IntEdgePar.Append ( IP.ParamOnSecond() );
1349 if ( IS.HasLastPoint() ) {
1350 IntRes2d_IntersectionPoint IP = IS.LastPoint();
1351 IntLinePar.Append ( IP.ParamOnFirst() );
1352 IntEdgePar.Append ( IP.ParamOnSecond() );
1356 if ( iter < nbIter ) {
1357 if ( iter == 1 ) c2d = Handle(Geom2d_Curve)::DownCast ( c2d->Copy() );
1358 pppf += shiftNext.XY();
1359 pppl += shiftNext.XY();
1360 c2d->Translate ( shiftNext );
1364 Standard_Integer start = IntEdgeInd.Length() + 1; // first of the new points
1366 // Move all points into range [f,l] (intersector sometimes gives params out of range)
1368 for ( i = start; i <= IntEdgePar.Length(); i++ ) {
1369 if ( IntEdgePar(i) < f ) IntEdgePar.SetValue ( i, f );
1370 else if ( IntEdgePar(i) > l ) IntEdgePar.SetValue ( i, l );
1373 // Sort by parameter on edge
1374 for ( i = IntEdgePar.Length(); i > start; i-- )
1375 for ( Standard_Integer j = start; j < i; j++ ) {
1376 if ( isreversed == ( IntEdgePar(j+1) < IntEdgePar(j) ) ) continue;
1377 IntLinePar.Exchange ( j, j+1 );
1378 IntEdgePar.Exchange ( j, j+1 );
1382 for ( i = start; i <= IntEdgePar.Length(); i++ )
1383 IntEdgeInd.Append ( iedge );
1385 // Detect intersection at closing point
1386 // Only wires which are not EXTERNAL are considered (as closed)
1387 if ( iedge == nbe && wire.Orientation() != TopAbs_EXTERNAL &&
1388 wire.Orientation() != TopAbs_INTERNAL &&
1389 ( prevCode == IOR_UNDEF || prevCode != firstCode ) ) {
1390 if ( ! closedDir || Abs ( firstDev - prevDev ) < halfPeriod ) {
1391 IntLinePar.Append ( ParamPointsOnLine ( pos, firstPos, line ) );
1392 IntEdgePar.Append ( isreversed ? f : l );
1393 IntEdgeInd.Append ( iedge );
1398 if ( IntEdgePar.Length() <1 ) {
1399 //pdn Defining position of wire. There is no intersection, so by any point.
1400 //DefinePatchForWire ( wire, firstCode, isCutByU, cutIndex );
1401 return Standard_False; //pdn ??
1404 //======================================
1405 // Fill sequence of transition codes for intersection points
1406 TColStd_SequenceOfInteger IntCode; // parameter of intersection point on line
1407 TColStd_SequenceOfInteger SegmentCodes; // classification codes for segments of wire
1409 // remove duplicated points to ensure correct results of ComputeCode
1410 Standard_Integer i, j = IntEdgePar.Length();
1411 if ( myClosedMode && j >1 ) {
1412 for ( i = 1; i <= IntEdgePar.Length(); ) {
1413 if ( i == j ) break;
1414 if ( IntEdgeInd(i) == IntEdgeInd(j) &&
1415 Abs ( IntEdgePar(i) - IntEdgePar(j) ) < ::Precision::PConfusion() ) {
1416 IntLinePar.Remove(i);
1417 IntEdgePar.Remove(i);
1418 IntEdgeInd.Remove(i);
1422 else if ( nbe ==1 || IntEdgeInd(i) == (IntEdgeInd(j)%nbe)+1 ) {
1423 TopoDS_Edge E1 = sewd->Edge ( IntEdgeInd(j) );
1424 TopoDS_Edge E2 = sewd->Edge ( IntEdgeInd(i) );
1425 Standard_Real a1, b1, a2, b2;
1426 BRep_Tool::Range ( E1, myFace, a1, b1 );
1427 BRep_Tool::Range ( E2, myFace, a2, b2 );
1428 if ( Abs ( IntEdgePar(j) - ( E1.Orientation() == TopAbs_FORWARD ? b1 : a1 ) ) < ::Precision::PConfusion() &&
1429 Abs ( IntEdgePar(i) - ( E2.Orientation() == TopAbs_FORWARD ? a2 : b2 ) ) < ::Precision::PConfusion() ) {
1430 IntLinePar.Remove(i);
1431 IntEdgePar.Remove(i);
1432 IntEdgeInd.Remove(i);
1440 //sequence of real codes for each segment
1441 TColStd_SequenceOfInteger aNewSegCodes;
1442 // Compute segment codes (left side of line, right or tangential)
1443 for ( i=1; i <= IntEdgePar.Length(); i++ ) {
1444 j = ( i < IntEdgePar.Length() ? i + 1 : 1 );
1445 Standard_Integer code = ComputeCode ( sewd, line, IntEdgeInd(i), IntEdgeInd(j),
1446 IntEdgePar(i), IntEdgePar(j),isnonmanifold );
1447 SegmentCodes.Append ( code );
1450 // for EXTERNAL wire, i.e. another joint line, every point is double intersection
1451 if ( wire.Orientation() == TopAbs_EXTERNAL ) {
1452 for ( i=1; i <= IntEdgePar.Length(); i++ )
1454 IntCode.Append ( ITP_TANG | IOR_BOTH );
1455 aNewSegCodes.Append(SegmentCodes(i));
1458 // For real (closed) wire, analyze tangencies
1460 if(wire.Orientation() != TopAbs_INTERNAL) {
1461 // Two consecutive tangential segments are considered as one, merge them.
1462 for ( i=1; i <= IntEdgePar.Length(); i++ ) {
1463 j = ( i > 1 ? i-1 : IntEdgePar.Length() );
1465 int k = ( i < IntEdgePar.Length() ? i + 1 : 1 ); // [ACIS22539]
1467 if ( SegmentCodes(j) == IOR_UNDEF &&
1468 SegmentCodes(i) == IOR_UNDEF ) {
1470 // Very specific case when the constructed seam edge
1471 // overlaps with spur edge [ACIS22539]
1472 if (myClosedMode && (IntLinePar(i) - IntLinePar(j)) * (IntLinePar(k) - IntLinePar(i)) <= 0. )
1475 IntEdgeInd.Remove(i);
1476 IntEdgePar.Remove(i);
1477 IntLinePar.Remove(i);
1478 SegmentCodes.Remove(i);
1483 //pdn exit if all split points removed
1484 if ( IntEdgePar.Length() <1 ) {
1485 return Standard_False; //pdn ??
1488 // Analyze type of intersection point and encode it
1489 // Three kinds of points (ITP): clear intersection, tangency in-point,
1490 // beginning and end of tangential segment.
1491 // Orientation (IOR) tells on which side of line edge crosses it
1492 j = IntEdgePar.Length();
1494 for ( i=1; i <= IntEdgePar.Length(); j = i++ ) {
1495 Standard_Integer codej = SegmentCodes(j);
1496 Standard_Integer codei = SegmentCodes(i);
1497 if ( myClosedMode ) {
1498 if ( ( codej & IOR_BOTH ) == IOR_BOTH ) //IOR_LEFT : IOR_RIGHT
1499 codej = ( codej & IOR_POS ? IOR_RIGHT : IOR_LEFT );
1500 if ( ( codei & IOR_BOTH ) == IOR_BOTH ) //IOR_RIGHT : IOR_LEFT
1501 codei = ( codei & IOR_POS ? IOR_LEFT : IOR_RIGHT );
1502 aNewSegCodes.Append ( codei );
1503 if(IntEdgeInd(i) == IntEdgeInd(j))
1504 aNewSegCodes.Append ( codej );
1508 aNewSegCodes.Append ( codei );
1509 Standard_Integer ipcode = ( codej | codei );
1510 if ( codej == IOR_UNDEF ) { // previous segment was tangency
1511 if ( IntLinePar(i) > IntLinePar (j) )
1512 ipcode |= ITP_ENDSEG; // end of segment
1513 else ipcode |= ITP_BEGSEG; // beginning of segment
1515 else if ( codei == IOR_UNDEF ) { // current segment is tangency
1516 if ( IntLinePar ( i < IntLinePar.Length() ? i+1 : 1 ) > IntLinePar(i) )
1517 ipcode |= ITP_BEGSEG; // beginning of segment
1518 else ipcode |= ITP_ENDSEG; // end of segment
1520 //internal wire can be only tangent
1521 else if ( i == j ) ipcode |= ( ( ipcode & IOR_BOTH ) == IOR_BOTH && !isnonmanifold ? ITP_INTER : ITP_TANG );
1522 else if ( codei == codej || isnonmanifold) ipcode |= ITP_TANG; // tangency in-point
1523 else ipcode |= ITP_INTER; // standard crossing
1524 IntCode.Append ( ipcode );
1528 //=======================================
1529 // Split edges in the wire by intersection points and fill vertices array
1530 TopTools_SequenceOfShape IntVertices;
1531 wire = SplitWire ( wire, IntEdgeInd, IntEdgePar, IntVertices,
1532 aNewSegCodes, isCutByU, cutIndex );
1534 // add all data to input arrays
1535 for ( i=1; i <= IntLinePar.Length(); i++ ) {
1536 SplitLinePar.Append ( IntLinePar(i) );
1537 SplitLineCode.Append ( IntCode(i) );
1538 SplitLineVertex.Append ( IntVertices(i) );
1541 return Standard_True;
1544 //=======================================================================
1545 //function : SplitByLine
1547 //=======================================================================
1549 void ShapeFix_ComposeShell::SplitByLine (ShapeFix_SequenceOfWireSegment &wires,
1550 const gp_Lin2d &line,
1551 const Standard_Boolean isCutByU,
1552 const Standard_Integer cutIndex)
1554 TColStd_SequenceOfReal SplitLinePar;
1555 TColStd_SequenceOfInteger SplitLineCode;
1556 TopTools_SequenceOfShape SplitLineVertex;
1558 // split wires one by one, collecting data on intersection points
1559 Standard_Integer i; // svv #1
1560 for ( i=1; i <= wires.Length(); i++ ) {
1561 SplitByLine ( wires(i), line, isCutByU, cutIndex,
1562 SplitLinePar, SplitLineCode, SplitLineVertex );
1565 // sort intersection points along parameter on cutting line
1566 for ( i = SplitLinePar.Length(); i >1; i-- )
1567 for ( Standard_Integer j=1; j < i; j++ ) {
1568 if ( SplitLinePar(j) > SplitLinePar(j+1) ) {
1569 SplitLinePar.Exchange ( j, j+1 );
1570 SplitLineCode.Exchange ( j, j+1 );
1571 SplitLineVertex.Exchange ( j, j+1 );
1575 // merge null-length tangential segments into one-point tangencies or intersections
1576 for ( i = 1; i < SplitLinePar.Length(); i++ ) {
1577 if ( Abs ( SplitLinePar(i+1) - SplitLinePar(i) ) > ::Precision::PConfusion() && !SplitLineVertex(i).IsSame(SplitLineVertex(i+1)) ) continue;
1578 if ( ( SplitLineCode(i) & ITP_ENDSEG &&
1579 SplitLineCode(i+1) & ITP_BEGSEG ) ||
1580 ( SplitLineCode(i) & ITP_BEGSEG &&
1581 SplitLineCode(i+1) & ITP_ENDSEG ) ) {
1582 Standard_Integer code = ( SplitLineCode(i) | SplitLineCode(i+1) ) & IOR_BOTH;
1583 SplitLineCode.SetValue ( i, code | ( code == IOR_BOTH ? ITP_INTER : ITP_TANG ) );
1584 SplitLinePar.Remove(i+1);
1585 SplitLineCode.Remove(i+1);
1586 SplitLineVertex.Remove(i+1);
1590 // go along line, split it by intersection points and create edges
1591 // (only for internal parts, in particular not for tangential segments)
1593 Standard_Integer parity = 0; // 0 - out, 1 - in
1594 Standard_Integer halfparity = 0; // left/right for tangential segments
1595 Standard_Integer tanglevel = 0; // tangency nesting level
1596 for ( i = 1; i <= SplitLinePar.Length(); i++ ) {
1597 Standard_Integer code = SplitLineCode(i);
1598 Standard_Boolean interior = ( !tanglevel && parity % 2 ); // create an edge
1599 if ( code & ITP_INTER ) { // crossing
1602 else if ( code & ITP_BEGSEG ) { // beginning of tangential segment
1604 if ( ! halfparity ) halfparity = ( code & IOR_BOTH );
1605 else if ( halfparity != ( code & IOR_BOTH ) ) parity++;
1607 else if ( code & ITP_ENDSEG ) { // end of tangential segment
1609 if ( ! halfparity ) halfparity = ( code & IOR_BOTH );
1610 else if ( halfparity != ( code & IOR_BOTH ) ) parity++;
1612 if ( tanglevel <0 ) {
1613 // myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL4 );
1615 cout << "Warning: ShapeFix_ComposeShell::SplitByLine: tangency level <0 !" << endl;
1618 if ( ! interior ) continue;
1620 // apply context to vertices (to perform replacing/merging vertices)
1622 TopoDS_Shape tmpV1 = Context()->Apply ( SplitLineVertex(i-1) );
1623 TopoDS_Shape tmpV2 = Context()->Apply ( SplitLineVertex(i) );
1624 TopoDS_Vertex V1 = TopoDS::Vertex ( tmpV1 );
1625 TopoDS_Vertex V2 = TopoDS::Vertex ( tmpV2 );
1626 // protection against creating null-length edges
1627 if ( SplitLinePar(i) - SplitLinePar(i-1) < ::Precision::PConfusion() ) {
1630 cout << "Info: ShapeFix_ComposeShell::SplitByLine: Short segment ignored" << endl;
1632 if ( ! V1.IsSame ( V2 ) ) { // merge coincident vertices
1633 ShapeBuild_Vertex sbv;
1634 TopoDS_Vertex V = sbv.CombineVertex ( V1, V2 );
1635 Context()->Replace ( V1, V.Oriented ( V1.Orientation() ) );
1636 Context()->Replace ( V2, V.Oriented ( V2.Orientation() ) );
1639 cout << "Info: ShapeFix_ComposeShell::SplitByLine: Coincided vertices merged" << endl;
1645 // create an edge (without 3d curve), put it in wire segment and add to sequence
1646 // NOTE: i here is always >1
1648 B.MakeEdge ( edge );
1649 V1.Orientation ( TopAbs_FORWARD );
1650 V2.Orientation ( TopAbs_REVERSED );
1653 Handle(Geom2d_Line) Lin1 = new Geom2d_Line ( line );
1654 Handle(Geom2d_Line) Lin2 = new Geom2d_Line ( line );
1655 B.UpdateEdge ( edge, Lin1, Lin2, myFace, ::Precision::Confusion() );
1656 B.Range ( edge, myFace, SplitLinePar(i-1), SplitLinePar(i) );
1658 Handle(ShapeExtend_WireData) sbwd = new ShapeExtend_WireData;
1660 ShapeFix_WireSegment seg ( sbwd, TopAbs_EXTERNAL );
1662 // set patch indices
1663 DefinePatch ( seg, IOR_UNDEF, isCutByU, cutIndex );
1665 Standard_Real shiftU =
1666 (myClosedMode && myUClosed ? ShapeAnalysis::AdjustToPeriod(SplitLinePar(i-1) -TOLINT, myGrid->UJointValue(1), myGrid->UJointValue(2)) : 0.);
1667 Standard_Real aPar = SplitLinePar(i-1) + shiftU;
1669 seg.DefineIUMin ( 1, GetPatchIndex ( aPar+::Precision::PConfusion(), myGrid->UJointValues(), myUClosed ) );
1670 seg.DefineIUMax ( 1, GetPatchIndex ( aPar-::Precision::PConfusion(), myGrid->UJointValues(), myUClosed ) + 1 );
1673 Standard_Real shiftV = (myClosedMode && myVClosed ? ShapeAnalysis::AdjustToPeriod(SplitLinePar(i-1) -TOLINT, myGrid->VJointValue(1), myGrid->VJointValue(2)) : 0.);
1674 Standard_Real aPar = SplitLinePar(i-1) + shiftV;
1675 seg.DefineIVMin ( 1, GetPatchIndex ( aPar+::Precision::PConfusion(), myGrid->VJointValues(), myVClosed ) );
1676 seg.DefineIVMax ( 1, GetPatchIndex ( aPar-::Precision::PConfusion(), myGrid->VJointValues(), myVClosed ) + 1 );
1678 wires.Append ( seg );
1681 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL4 );
1683 cout << "Error: ShapeFix_ComposeShell::SplitByLine: parity error" << endl;
1687 // Apply context to all wires to perform all recorded replacements/merging
1688 for ( i=1; i <= wires.Length(); i++ ) {
1689 for ( Standard_Integer j=1; j <= wires(i).NbEdges(); )
1690 j += ApplyContext ( wires(i), j, Context() );
1694 //=======================================================================
1695 //function : SplitByGrid
1697 //=======================================================================
1699 void ShapeFix_ComposeShell::SplitByGrid (ShapeFix_SequenceOfWireSegment &seqw)
1701 // process splitting by U- anv V-seams (i.e. U=const and V=const curves)
1702 // closed composite surface is processed as periodic
1703 Standard_Real Uf,Ul,Vf,Vl;
1704 BRepTools::UVBounds(myFace,Uf,Ul,Vf,Vl);
1705 Standard_Real Umin,Umax,Vmin,Vmax;
1706 myGrid->Bounds(Umin,Umax,Vmin,Vmax);
1708 //value of precision to define number of patch should be the same as used in the definitin position of point realtively to seam edge (TOLINT)
1709 Standard_Real pprec = TOLINT;//::Precision::PConfusion();
1710 Standard_Integer i = 1;
1713 //for closed mode when only one patch exist and location of the splitting line is coinsident with first joint value
1714 //Therefore in this case it is necessary to move all wire segments in the range of the patch between first and last joint
1715 //values. Then all wire segments are lie between -period and period in order to have valid split ranges after splitting.
1716 //Because for closed mode cut index always equal to 1 and parts of segments after splitting always should have index either (0,1) or (1,2).
1717 for ( i=1; i <= seqw.Length(); i++ )
1719 ShapeFix_WireSegment &wire = seqw(i);
1721 TopoDS_Shape atmpF = myFace.EmptyCopied();
1723 atmpF.Orientation(TopAbs_FORWARD);
1724 aB.Add(atmpF, wire.WireData()->Wire());
1725 Standard_Real Uf1,Ul1,Vf1,Vl1;
1726 ShapeAnalysis::GetFaceUVBounds(TopoDS::Face(atmpF),Uf1,Ul1,Vf1,Vl1);
1728 //for closed mode it is necessary to move wire segment in the interval defined by first and last grid UV values
1729 Standard_Real shiftU = (myClosedMode && myUClosed ? ShapeAnalysis::AdjustToPeriod(Ul1 -pprec, myGrid->UJointValue(1), myGrid->UJointValue(2)) : 0.);
1730 Standard_Real shiftV = (myClosedMode && myVClosed ? ShapeAnalysis::AdjustToPeriod(Vl1 -pprec, myGrid->VJointValue(1), myGrid->VJointValue(2)) : 0.);
1735 // limit patch indices to be in range of grid (extended for periodic) (0, 2)
1736 //in same cases for example trj4_pm2-ug-203.stp (entity #8024) wire in 2D space has length greater then period
1737 Standard_Integer iumin = Max(0,GetPatchIndex ( Uf1+pprec, myGrid->UJointValues(), myUClosed ));
1738 Standard_Integer iumax = GetPatchIndex ( Ul1-pprec, myGrid->UJointValues(), myUClosed ) + 1;
1740 for ( Standard_Integer j=1; j <= wire.NbEdges(); j++ ) {
1741 wire.DefineIUMin ( j, iumin );
1742 wire.DefineIUMax ( j, iumax );
1745 Standard_Integer ivmin = Max(0,GetPatchIndex ( Vf1+pprec, myGrid->VJointValues(), myVClosed ));
1746 Standard_Integer ivmax = GetPatchIndex ( Vl1-pprec, myGrid->VJointValues(), myVClosed ) + 1;
1748 for ( Standard_Integer j=1; j <= wire.NbEdges(); j++ ) {
1749 wire.DefineIVMin ( j, ivmin );
1750 wire.DefineIVMax ( j, ivmax );
1756 // limit patch indices to be in range of grid (extended for periodic)
1757 Standard_Integer iumin = GetPatchIndex ( Uf+pprec, myGrid->UJointValues(), myUClosed );
1758 Standard_Integer iumax = GetPatchIndex ( Ul-pprec, myGrid->UJointValues(), myUClosed ) + 1;
1759 for ( i=1; i <= seqw.Length(); i++ ) {
1760 ShapeFix_WireSegment &wire = seqw(i);
1761 for ( Standard_Integer j=1; j <= wire.NbEdges(); j++ ) {
1762 wire.DefineIUMin ( j, iumin );
1763 wire.DefineIUMax ( j, iumax );
1766 Standard_Integer ivmin = GetPatchIndex ( Vf+pprec, myGrid->VJointValues(), myVClosed );
1767 Standard_Integer ivmax = GetPatchIndex ( Vl-pprec, myGrid->VJointValues(), myVClosed ) + 1;
1768 for ( i=1; i <= seqw.Length(); i++ ) {
1769 ShapeFix_WireSegment &wire = seqw(i);
1770 for ( Standard_Integer j=1; j <= wire.NbEdges(); j++ ) {
1771 wire.DefineIVMin ( j, ivmin );
1772 wire.DefineIVMax ( j, ivmax );
1778 for ( i = ( myUClosed ? 1 : 2 ); i <= myGrid->NbUPatches(); i++ ) {
1779 gp_Pnt2d pos ( myGrid->UJointValue(i), 0. ); // 0. - for infinite ranges: myGrid->VJointValue(1) ;
1780 gp_Lin2d line ( pos, gp_Dir2d ( 0., 1. ) );
1781 if ( ! myClosedMode && myUClosed ) {
1782 Standard_Real period = Umax - Umin;
1783 Standard_Real X = pos.X();
1784 Standard_Real sh = ShapeAnalysis::AdjustToPeriod(X,Uf, Uf+period);
1785 for( ; X+sh <= Ul+pprec; sh += period ) {
1786 gp_Lin2d ln = line.Translated(gp_Vec2d(sh,0));
1787 Standard_Integer cutIndex = GetPatchIndex ( X+sh+pprec, myGrid->UJointValues(), myUClosed );
1788 SplitByLine ( seqw, ln, Standard_True, cutIndex );
1792 SplitByLine ( seqw, line, Standard_True, i );
1796 for ( i = ( myVClosed ? 1 : 2 ); i <= myGrid->NbVPatches(); i++ ) {
1797 gp_Pnt2d pos ( 0., myGrid->VJointValue(i) );
1798 gp_Lin2d line ( pos, gp_Dir2d ( 1., 0. ) );
1799 if ( ! myClosedMode && myVClosed ) {
1800 Standard_Real period = Vmax - Vmin;
1801 Standard_Real Y = pos.Y();
1802 Standard_Real sh = ShapeAnalysis::AdjustToPeriod(Y,Vf, Vf+period);
1803 for( ; Y+sh <= Vl+pprec; sh += period) {
1804 gp_Lin2d ln = line.Translated(gp_Vec2d(0,sh));
1805 Standard_Integer cutIndex = GetPatchIndex ( Y+sh+pprec, myGrid->VJointValues(), myVClosed );
1806 SplitByLine ( seqw, ln, Standard_False, cutIndex );
1810 SplitByLine ( seqw, line, Standard_False, i );
1814 //=======================================================================
1815 //function : BreakWires
1817 //=======================================================================
1819 void ShapeFix_ComposeShell::BreakWires (ShapeFix_SequenceOfWireSegment &seqw)
1821 // split all the wires by vertices
1822 TopTools_MapOfShape splitVertices;
1823 ShapeAnalysis_Edge sae;
1825 // first collect splitting vertices
1826 Standard_Integer i; // svv #1
1827 for ( i=1; i <= seqw.Length(); i++ ) {
1828 TopAbs_Orientation ori_wire = seqw(i).Orientation();
1829 if ( ori_wire != TopAbs_EXTERNAL &&
1830 ori_wire != TopAbs_INTERNAL) continue;
1832 Handle(ShapeExtend_WireData) sbwd = seqw(i).WireData();
1833 for ( Standard_Integer j=1; j <= sbwd->NbEdges(); j++ ) {
1834 TopoDS_Edge edge = sbwd->Edge ( j );
1835 TopAbs_Orientation ori_edge = (ori_wire == TopAbs_EXTERNAL ? ori_wire : edge.Orientation());
1836 if(ori_edge == TopAbs_EXTERNAL) {
1837 splitVertices.Add ( sae.FirstVertex ( edge ) );
1838 splitVertices.Add ( sae.LastVertex ( edge ) );
1843 // and then split each vire
1844 // Here each wire is supposed to be connected (while probably not closed)
1845 for ( i=1; i <= seqw.Length(); i++ ) {
1846 TopAbs_Orientation ori = seqw(i).Orientation();
1847 ShapeFix_WireSegment wire = seqw(i);
1850 Handle(ShapeExtend_WireData) sbwd = wire.WireData();
1852 // find first vertex for split
1853 Standard_Integer j; // svv #1
1854 for ( j=1; j <= sbwd->NbEdges(); j++ ) {
1855 TopoDS_Vertex V = sae.FirstVertex ( sbwd->Edge(j) );
1856 if ( splitVertices.Contains ( V ) ) break;
1858 if ( j > sbwd->NbEdges() ) continue; // splitting not needed
1860 // if first split of closed edge is not its start, make permutation
1861 Standard_Integer shift = 0;
1862 if ( j >1 && ! myClosedMode && wire.IsClosed() ) {
1863 TopoDS_Vertex V = sae.FirstVertex ( sbwd->Edge(1) );
1864 if ( ! splitVertices.Contains ( V ) )
1866 // wire.SetLast ( j-1 );
1869 // perform splitting
1870 Standard_Integer nbnew = 0;
1871 ShapeFix_WireSegment newwire;
1872 TopAbs_Orientation curOri = ori;
1873 for ( Standard_Integer ind=1; ind <= sbwd->NbEdges(); ind++ ) {
1874 j = 1 + ( ind - 1 + shift ) % sbwd->NbEdges();
1875 TopoDS_Edge edge = sbwd->Edge(j);
1876 TopoDS_Vertex V = sae.FirstVertex ( edge );
1877 if ( ind==1 || splitVertices.Contains ( V ) ) {
1878 if ( newwire.NbEdges() ) {
1879 newwire.Orientation ( curOri );
1880 // ShapeFix_WireSegment seg ( newwire, ori );
1881 seqw.InsertBefore ( i++, newwire );
1887 Standard_Integer iumin, iumax, ivmin, ivmax;
1888 wire.GetPatchIndex ( j, iumin, iumax, ivmin, ivmax );
1889 if(ori == TopAbs_INTERNAL && edge.Orientation() == TopAbs_EXTERNAL ) {
1890 curOri = TopAbs_EXTERNAL;
1891 edge.Orientation(TopAbs_FORWARD);
1894 newwire.AddEdge ( 0, edge, iumin, iumax, ivmin, ivmax );
1897 newwire.Orientation ( curOri );
1898 // ShapeFix_WireSegment seg ( newwire, ori );
1899 seqw.SetValue ( i, newwire );
1904 //=======================================================================
1905 //function : IsShortSegment
1906 //purpose : auxilary
1907 //=======================================================================
1908 // BUC60035 2053: check if wire segment is very short (in order not to skip it)
1910 // 1 - short even in 2d (to be taken always)
1911 // -1 - short in 3d but not in 2d (to be checked after algo and atteching to
1912 // another wire if alone)
1913 static Standard_Integer IsShortSegment (const ShapeFix_WireSegment &seg,
1914 const TopoDS_Face myFace,
1915 const Handle(Geom_Surface)& myGrid,
1916 const TopLoc_Location &myLoc,
1917 const Standard_Real UResolution,
1918 const Standard_Real VResolution)
1920 TopoDS_Vertex Vf = seg.FirstVertex();
1921 if ( ! Vf.IsSame ( seg.LastVertex() ) ) return 0;
1923 gp_Pnt pnt = BRep_Tool::Pnt(Vf);
1924 Standard_Real tol = BRep_Tool::Tolerance(Vf);
1925 Standard_Real tol2 = tol*tol;
1927 Standard_Integer code = 1;
1928 ShapeAnalysis_Edge sae;
1929 Handle(ShapeExtend_WireData) sbwd = seg.WireData();
1930 for ( Standard_Integer i=1; i <= sbwd->NbEdges(); i++ ) {
1931 TopoDS_Edge edge = sbwd->Edge ( i );
1932 if ( ! Vf.IsSame ( sae.LastVertex ( edge ) ) ) return 0;
1933 Handle(Geom2d_Curve) c2d;
1935 if ( ! sae.PCurve ( edge, myFace, c2d, f, l ) ) continue;
1938 gp_Pnt2d endPnt = c2d->Value(l);
1939 gp_Pnt2d midPnt = c2d->Value((f+l)/2);
1940 if ( ! IsCoincided ( endPnt, midPnt, UResolution, VResolution, tol ) ) code = -1;
1943 gp_Pnt midPnt3d = myGrid->Value(midPnt.X(),midPnt.Y());
1944 if ( ! myLoc.IsIdentity() ) midPnt3d.Transform ( myLoc.Transformation() );
1945 if ( midPnt3d.SquareDistance(pnt) > tol2) return 0;
1950 //=======================================================================
1951 //function : IsSamePatch
1952 //purpose : auxilary
1953 //=======================================================================
1954 static Standard_Boolean IsSamePatch (const ShapeFix_WireSegment wire,
1955 const Standard_Integer NU,
1956 const Standard_Integer NV,
1957 Standard_Integer &iumin,
1958 Standard_Integer &iumax,
1959 Standard_Integer &ivmin,
1960 Standard_Integer &ivmax,
1961 const Standard_Boolean extend=Standard_False)
1963 // get patch indices for current segment
1964 Standard_Integer jumin, jumax, jvmin, jvmax;
1965 wire.GetPatchIndex ( 1, jumin, jumax, jvmin, jvmax );
1967 // shift to the same period
1968 Standard_Integer du=0, dv=0;
1969 if ( jumin - iumin > NU ) du =-( jumin - iumin ) / NU;
1970 else if ( iumin - jumin > NU ) du = ( iumin - jumin ) / NU;
1971 if ( jvmin - ivmin > NV ) dv =-( jvmin - ivmin ) / NV;
1972 else if ( ivmin - jvmin > NV ) dv = ( ivmin - jvmin ) / NV;
1973 if ( du ) { jumin += du * NU; jumax += du * NU; }
1974 if ( dv ) { jvmin += dv * NV; jvmax += dv * NV; }
1976 // compute common (extended) indices
1977 Standard_Integer iun = Min ( iumin, jumin );
1978 Standard_Integer iux = Max ( iumax, jumax );
1979 Standard_Integer ivn = Min ( ivmin, jvmin );
1980 Standard_Integer ivx = Max ( ivmax, jvmax );
1981 Standard_Boolean ok = ( iun == iux || iun+1 == iux ) &&
1982 ( ivn == ivx || ivn+1 == ivx );
1983 if ( ok && extend ) { iumin = iun; iumax = iux; ivmin = ivn; ivmax = ivx; }
1987 //=======================================================================
1988 //function : CollectWires
1990 //=======================================================================
1992 void ShapeFix_ComposeShell::CollectWires (ShapeFix_SequenceOfWireSegment &wires,
1993 ShapeFix_SequenceOfWireSegment &seqw)
1995 ShapeAnalysis_Edge sae;
1996 Standard_Integer i; // svv #1
1997 // Collect information on short closed segments
1998 TColStd_Array1OfInteger shorts(1,seqw.Length());
1999 for ( i=1; i <= seqw.Length(); i++ ) {
2000 if(seqw(i).IsVertex() || seqw(i).Orientation() == TopAbs_INTERNAL) {
2001 wires.Append(seqw(i));
2007 for ( Standard_Integer k=1; ! myClosedMode && k <= seqw(i).NbEdges(); k++ )
2008 if ( ! seqw(i).CheckPatchIndex ( k ) ) {
2009 cout << "Warning: ShapeFix_ComposeShell::CollectWires: Wrong patch indices" << endl;
2013 Standard_Integer isshort = IsShortSegment ( seqw(i), myFace, myGrid, myLoc,
2014 myUResolution, myVResolution );
2015 shorts.SetValue ( i, isshort );
2017 ( seqw(i).Orientation() == TopAbs_EXTERNAL ||
2018 ( seqw(i).NbEdges() == 1 && //:abv 13.05.02: OCC320 - remove if degenerated
2019 BRep_Tool::Degenerated ( seqw(i).Edge(1) ) ) ) ) {
2021 cout << "Info: ShapeFix_ComposeShell::CollectWires: Short segment ignored" << endl;
2023 seqw(i).Orientation ( TopAbs_INTERNAL );
2027 Handle(ShapeExtend_WireData) sbwd;
2028 gp_Pnt2d endPnt, firstPnt;
2029 gp_Vec2d endTan, firstTan;
2030 TopoDS_Vertex firstV, endV;
2031 TopoDS_Edge firstEdge, lastEdge;
2032 Standard_Real tol = 0;
2033 Standard_Integer iumin = 0, iumax = 0, ivmin = 0, ivmax = 0;
2034 Standard_Real dsu=0., dsv=0.;
2035 Standard_Boolean canBeClosed = Standard_False;
2037 Standard_Integer index = 0;
2038 Standard_Boolean misoriented = Standard_True, samepatch = Standard_False;
2039 Standard_Boolean reverse = Standard_False, connected = Standard_False;
2040 Standard_Real angle = -M_PI, mindist = RealLast();
2041 Standard_Integer weigth = 0;
2042 Standard_Real shiftu=0., shiftv=0.;
2044 // find next segment to connect (or first if sbwd is NULL)
2045 for ( i = 1; i <= seqw.Length(); i++ ) {
2046 ShapeFix_WireSegment seg = seqw.Value(i);
2049 TopAbs_Orientation anOr = seg.Orientation();
2050 if ( anOr == TopAbs_INTERNAL ) continue;
2052 // for first segment, take any
2053 if ( sbwd.IsNull() ) {
2054 if ( shorts(i) >0 ) continue;
2055 if ( anOr == TopAbs_EXTERNAL ) continue;
2056 if ( anOr == TopAbs_FORWARD ) reverse = Standard_True;
2058 seg.GetPatchIndex ( 1, iumin, iumax, ivmin, ivmax );
2060 misoriented = Standard_False;
2065 // check whether current segment is on the same patch with previous
2066 Standard_Boolean sp = IsSamePatch ( seg, myGrid->NbUPatches(), myGrid->NbVPatches(),
2067 iumin, iumax, ivmin, ivmax );
2069 // not same patch has lowest priority
2070 if ( ! sp && ( canBeClosed || ( index && samepatch ) ) ) continue;
2072 // try to connect, with the following priorities:
2073 // The name of property Weigth:
2074 // sharing vertex auto
2077 // misorientation = 0 8
2078 // connected in 2d 4
2082 Handle(ShapeExtend_WireData) wire = seg.WireData();
2083 for ( Standard_Integer j=0; j <2; j++ ) {
2084 if ( ! endV.IsSame ( j ? seg.LastVertex() : seg.FirstVertex() ) ) continue;
2086 // check for misorientation only if nothing better is found
2087 Standard_Boolean misor = ( anOr == ( j ? TopAbs_REVERSED : TopAbs_FORWARD ) );
2088 // if ( misor ) continue; // temporarily, to be improved
2090 // returning back by the same edge is lowest priority
2091 if ( lastEdge.IsSame ( wire->Edge ( j ? wire->NbEdges() : 1 ) ) ) {
2092 if ( ! index && ! canBeClosed ) { // || ( sp && ! samepatch ) ) {
2095 connected = Standard_True;
2096 misoriented = misor;
2098 weigth = ( sp ? 16 : 0 ) + ( connected ? 8 : 0 ) + (misor==0 ? 4 : 0);
2104 // compute starting tangent
2108 Standard_Real edgeTol = 0;
2109 for ( k=1; k <= wire->NbEdges(); k++ ) {
2110 TopoDS_Shape tmpE = wire->Edge(wire->NbEdges()-k+1).Reversed();
2111 TopoDS_Edge edge = ( j ? TopoDS::Edge ( tmpE ) :
2113 edgeTol = BRep_Tool::Tolerance ( edge );
2114 //if ( sae.GetEndTangent2d ( edge, myFace, Standard_False, lPnt, lVec ) ) break;
2115 if ( sae.GetEndTangent2d ( edge, myFace, Standard_False, lPnt, lVec, 1.e-3 ) ) break;
2117 if ( k > wire->NbEdges() ) myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2119 if ( myClosedMode ) {
2121 shiftu = ShapeAnalysis::AdjustByPeriod ( lPnt.X(), endPnt.X(), myUPeriod );
2122 lPnt.SetX ( lPnt.X() + shiftu );
2125 shiftv = ShapeAnalysis::AdjustByPeriod ( lPnt.Y(), endPnt.Y(), myVPeriod );
2126 lPnt.SetY ( lPnt.Y() + shiftv );
2130 // short segment is to be taken with highest priority by angle
2131 Standard_Real ang = ( shorts(i) >0 ? M_PI : endTan.Angle ( lVec ) );
2132 if ( myClosedMode && shorts(i) <=0 && M_PI-ang < ::Precision::Angular() )
2133 ang = 0.; // abv 21 Mar 00: trj3_s1-md-214.stp #2471: avoid going back
2135 // abv 05 Feb 02: face from Parasolid: use tolerance of edges for check
2136 // for coincidence (instead of vertex tolerance) in order
2137 // this check to be in agreement with check for position of wire segments
2138 // thus avoiding bad effects on overlapping edges
2139 Standard_Real ctol = Max ( edgeTol, BRep_Tool::Tolerance(lastEdge) );
2140 Standard_Boolean conn = IsCoincided ( endPnt, lPnt, myUResolution, myVResolution, ctol );
2141 Standard_Real dist = endPnt.SquareDistance ( lPnt );
2143 // check if case is better than last found
2144 Standard_Integer w1 = ( sp ? 16 : 0 ) + ( conn ? 4 : 0 ) + (misor==0 ? 8 : 0);
2145 Standard_Integer tail1 = ( !conn && (dist < mindist) ? 2 : 0) + (ang > angle ? 1 : 0);
2146 Standard_Integer tail2 = ( !connected &&(dist > mindist) ? 2 : 0) + (ang < angle ? 1 : 0);
2147 if(w1+tail1 <= weigth+tail2)
2155 misoriented = misor;
2163 // if next segment found, connect it
2166 myInvertEdgeStatus = Standard_True;
2167 ShapeFix_WireSegment seg = seqw.Value(index);
2168 if ( sbwd.IsNull() ) sbwd = new ShapeExtend_WireData;
2169 else if ( samepatch ) { // extend patch indices
2170 IsSamePatch ( seg, myGrid->NbUPatches(), myGrid->NbVPatches(),
2171 iumin, iumax, ivmin, ivmax, Standard_True );
2174 //for closed mode in case if current segment is seam segment it is necessary to detect crossing seam edge
2175 //in order to have possibility to take candidate from other patch
2177 seg.GetPatchIndex ( 1, iumin, iumax, ivmin, ivmax );
2179 // TopAbs_Orientation or = seg.Orientation();
2180 if ( ! reverse ) sbwd->Add ( seg.WireData() );
2182 Handle(ShapeExtend_WireData) wire = new ShapeExtend_WireData;
2183 wire->ManifoldMode() = Standard_False;
2184 wire->Add ( seg.WireData() );
2185 wire->Reverse ( myFace );
2188 if ( seg.Orientation() == TopAbs_EXTERNAL )
2189 seg.Orientation ( reverse ? TopAbs_REVERSED : TopAbs_FORWARD );
2191 seg.Orientation ( TopAbs_INTERNAL );
2192 seqw.SetValue ( index, seg );
2194 else if ( sbwd.IsNull() ) break; // stop when no free segments available
2195 // for first segment, remember start point
2196 if ( endV.IsNull() ) {
2197 firstEdge = sbwd->Edge(1);
2198 firstV = sae.FirstVertex ( firstEdge );
2199 //sae.GetEndTangent2d ( firstEdge, myFace, Standard_False, firstPnt, firstTan );
2200 sae.GetEndTangent2d ( firstEdge, myFace, Standard_False, firstPnt, firstTan, 1.e-3 );
2203 // update last edge and vertex (only for not short segments)
2204 Standard_Boolean doupdate = ( index && ( shorts(index) <=0 || endV.IsNull() ) );
2206 lastEdge = sbwd->Edge ( sbwd->NbEdges() );
2207 endV = sae.LastVertex ( lastEdge );
2208 tol = BRep_Tool::Tolerance ( endV );
2209 // BUC60035 2053: iteration on edges is required
2210 Standard_Integer k; // svv #1
2211 for ( k=sbwd->NbEdges(); k >=1; k-- )
2212 //if ( sae.GetEndTangent2d ( sbwd->Edge ( k ), myFace, Standard_True, endPnt, endTan ) )
2213 if ( sae.GetEndTangent2d ( sbwd->Edge ( k ), myFace, Standard_True, endPnt, endTan, 1.e-3 ) )
2215 if ( k <1 ) myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2216 if ( myUClosed ) endPnt.SetX ( endPnt.X() + dsu );
2217 if ( myVClosed ) endPnt.SetY ( endPnt.Y() + dsv );
2220 // if closed or no next segment found, add to wires
2221 canBeClosed = endV.IsSame ( firstV );
2222 if ( ! index || ( canBeClosed &&
2223 ! lastEdge.IsSame ( firstEdge ) && // cylinder (seam)
2224 IsCoincided ( endPnt, firstPnt, myUResolution, myVResolution, 2.* tol ) ) ) {
2225 if ( ! endV.IsSame ( sae.FirstVertex ( firstEdge ) ) ) {
2226 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL5 );
2228 cout << "Warning: ShapeFix_ComposeShell::CollectWires: can't close wire" << endl;
2231 ShapeFix_WireSegment s ( sbwd, TopAbs_FORWARD );
2232 s.DefineIUMin(1,iumin);
2233 s.DefineIUMax(1,iumax);
2234 s.DefineIVMin(1,ivmin);
2235 s.DefineIVMax(1,ivmax);
2239 canBeClosed = Standard_False;
2243 // Check if some wires are short in 3d (lie entirely inside one vertex),
2244 // and if yes try to merge them with others
2245 //pdn The short seqments are stil plased in "in" sequence.
2247 for ( i=1; i <= seqw.Length(); i++ ) {
2248 if ( shorts(i) != 1 ||
2249 seqw(i).IsVertex() ||
2250 seqw(i).Orientation() == TopAbs_INTERNAL ||
2251 seqw(i).Orientation() == TopAbs_EXTERNAL )
2254 // find any other wire containing the same vertex
2255 Handle(ShapeExtend_WireData) wd = seqw(i).WireData();
2256 TopoDS_Vertex V = seqw(i).FirstVertex();
2257 Standard_Integer minj=0, mink=0;
2260 Standard_Real mindist=0;
2261 Standard_Boolean samepatch = Standard_False;
2262 // Standard_Integer iumin, iumax, ivmin, ivmax;
2263 seqw(i).GetPatchIndex ( 1, iumin, iumax, ivmin, ivmax );
2264 sae.GetEndTangent2d ( wd->Edge(1), myFace, Standard_False, p2d, vec );
2265 for ( Standard_Integer j=1; j <= wires.Length(); j++ ) {
2266 // if ( j == i ) continue;
2267 // Handle(ShapeExtend_WireData)
2268 sbwd = wires(j).WireData();
2269 for ( Standard_Integer k=1; k <= sbwd->NbEdges(); k++ ) {
2270 if ( !V.IsSame ( sae.FirstVertex ( sbwd->Edge(k) ) ) ) continue; //pdn I suppose that short segment should be inserted into the SAME vertex.
2272 Standard_Boolean sp = IsSamePatch ( wires(j), myGrid->NbUPatches(), myGrid->NbVPatches(),
2273 iumin, iumax, ivmin, ivmax );
2274 if ( samepatch && !sp) continue;
2276 sae.GetEndTangent2d ( sbwd->Edge(k), myFace, Standard_False, pp, vec );
2277 Standard_Real dist = pp.SquareDistance ( p2d );
2278 if ( sp && ! samepatch ) { minj = j; mink = k; mindist = dist;samepatch=sp;}
2280 if ( ! minj || mindist > dist ) { minj = j; mink = k; mindist = dist;samepatch=sp; }
2284 //pdn add into resulting sequence!
2285 ShapeFix_WireSegment s ( wd, TopAbs_FORWARD );
2288 cout <<"Warning: Short segment processed as separate wire"<<endl;
2293 // and if found, merge
2294 // Handle(ShapeExtend_WireData)
2295 sbwd = wires(minj).WireData();
2296 for ( Standard_Integer n=1; n <= wd->NbEdges(); n++ )
2297 sbwd->Add ( wd->Edge(n), mink++ );
2299 // wires.Remove ( i );
2304 //=======================================================================
2305 //function : DispatchWires
2307 //=======================================================================
2309 static gp_Pnt2d GetMiddlePoint (const ShapeFix_WireSegment wire,
2310 const TopoDS_Face face)
2312 if(wire.IsVertex()) {
2313 TopoDS_Vertex aV = wire.GetVertex();
2314 gp_Pnt aP3D = BRep_Tool::Pnt(aV );
2315 Handle(Geom_Surface) surf = BRep_Tool::Surface(face);
2316 Handle(ShapeAnalysis_Surface) aSurfTool = new ShapeAnalysis_Surface(surf);
2317 return aSurfTool->ValueOfUV(aP3D,Precision::Confusion());
2320 ShapeAnalysis_Edge sae;
2321 ShapeAnalysis_Curve sac;
2322 Handle(ShapeExtend_WireData) wd = wire.WireData();
2323 for(Standard_Integer i = 1; i <= wd->NbEdges(); i++) {
2324 TopoDS_Edge E = wd->Edge (i);
2325 Standard_Real cf,cl;
2326 Handle(Geom2d_Curve) c2d;
2327 if(sae.PCurve (E,face,c2d,cf,cl,Standard_False)) {
2328 sac.FillBndBox ( c2d, cf, cl, 3, Standard_False, box );
2329 // box.Add(c2d->Value(cf));
2330 // box.Add(c2d->Value(cl));
2331 // box.Add(c2d->Value((cl+cf)/2.));
2334 if ( box.IsVoid() ) return gp_Pnt2d(0.,0.);
2335 Standard_Real aXmin, aYmin, aXmax, aYmax;
2336 box.Get(aXmin, aYmin, aXmax, aYmax);
2337 return gp_Pnt2d ( 0.5 * ( aXmax + aXmin ), 0.5 * ( aYmax + aYmin ) );
2340 //=======================================================================
2341 //function : MakeFacesOnPatch
2343 //=======================================================================
2345 void ShapeFix_ComposeShell::MakeFacesOnPatch (TopTools_SequenceOfShape &faces,
2346 const Handle(Geom_Surface)& surf,
2347 TopTools_SequenceOfShape &loops) const
2351 // Case of single loop: just add it to face
2352 if ( loops.Length() == 1 ) {
2353 TopoDS_Face newFace;
2354 B.MakeFace ( newFace, surf, myLoc, ::Precision::Confusion() );
2355 TopoDS_Shape aSH = loops.Value(1);
2356 if( aSH.ShapeType() != TopAbs_WIRE)
2358 TopoDS_Wire wire = TopoDS::Wire ( loops.Value(1) );
2360 B.Add ( newFace, wire );
2361 if(myInvertEdgeStatus) {
2362 Handle(ShapeFix_Face) sff = new ShapeFix_Face(newFace);
2363 sff->FixAddNaturalBoundMode() = Standard_False;
2364 TopTools_DataMapOfShapeListOfShape MapWires;
2366 sff->FixOrientation(MapWires);
2367 newFace = sff->Face();
2370 faces.Append ( newFace );
2374 // For several loops, first find roots
2375 // make pseudo-face,
2377 B.MakeFace ( pf, surf, myLoc, ::Precision::Confusion() );
2378 Handle(Geom_Surface) atSurf = BRep_Tool::Surface(pf);
2380 Handle(ShapeAnalysis_Surface) aSurfTool = new ShapeAnalysis_Surface(atSurf);
2381 TopTools_SequenceOfShape roots;
2382 Standard_Integer i; // svv #1
2383 for ( i = 1; i <= loops.Length(); i++ ) {
2386 TopoDS_Shape aShape = loops(i);
2387 if(aShape.ShapeType() != TopAbs_WIRE ||
2388 (aShape.Orientation() != TopAbs_FORWARD && aShape.Orientation() != TopAbs_REVERSED))
2391 wr = TopoDS::Wire ( loops(i) );
2392 TopoDS_Iterator ew (wr);
2393 if ( ! ew.More() ) continue;
2395 TopoDS_Edge ed = TopoDS::Edge ( ew.Value() );
2396 while(ed.Orientation() != TopAbs_FORWARD &&
2397 ed.Orientation() != TopAbs_REVERSED ) {
2400 ed = TopoDS::Edge ( ew.Value() );
2404 if ( ! ew.More() ) continue;
2405 Standard_Real cf, cl;
2406 Handle(Geom2d_Curve) cw = BRep_Tool::CurveOnSurface ( ed, pf, cf, cl );
2407 if ( cw.IsNull() ) continue;
2408 unp = cw->Value ( 0.5 * ( cf + cl ) );
2410 Standard_Integer j; // svv #1
2411 for ( j = 1; j <= loops.Length(); j++ ) {
2412 if ( i == j ) continue;
2413 TopoDS_Shape aShape2 = loops(j);
2414 if(aShape2.ShapeType() != TopAbs_WIRE ||
2415 (aShape2.Orientation() != TopAbs_FORWARD &&
2416 aShape2.Orientation() != TopAbs_REVERSED))
2418 TopoDS_Wire w1 = TopoDS::Wire (aShape2);
2421 awtmp.Orientation(TopAbs_FORWARD);
2422 TopoDS_Iterator aIt(w1);
2423 Standard_Integer nbe =0;
2424 for( ; aIt.More() ; aIt.Next()) {
2425 if(aIt.Value().Orientation() == TopAbs_FORWARD ||
2426 aIt.Value().Orientation() == TopAbs_REVERSED) {
2427 B.Add(awtmp,aIt.Value());
2434 B.MakeFace ( fc, surf, myLoc, ::Precision::Confusion() );
2435 B.Add ( fc, awtmp );
2436 BRepTopAdaptor_FClass2d clas ( fc, ::Precision::PConfusion() );
2437 TopAbs_State stPoint = clas.Perform (unp,Standard_False);
2438 if(stPoint == TopAbs_ON || stPoint == TopAbs_UNKNOWN) {
2440 TopoDS_Edge anEdge = TopoDS::Edge ( ew.Value() );
2441 Standard_Real aCF, aCL;
2442 Handle(Geom2d_Curve) aCW = BRep_Tool::CurveOnSurface ( anEdge, pf, aCF, aCL);
2443 // handle tangential case (ON)
2444 while ( stPoint == TopAbs_ON || stPoint == TopAbs_UNKNOWN ) {
2445 stPoint = clas.Perform (aCW->Value(aCL), Standard_False );
2446 if ( ! ew.More() ) break;
2448 if ( ! ew.More() ) break;
2449 TopoDS_Edge edge = TopoDS::Edge ( ew.Value() );
2450 if(edge.Orientation() !=TopAbs_FORWARD &&
2451 edge.Orientation() !=TopAbs_REVERSED)
2453 Handle(Geom2d_Curve) c2d = BRep_Tool::CurveOnSurface ( edge, pf, aCF, aCL );
2454 if ( ! c2d.IsNull() ) aCW = c2d;
2457 TopAbs_State stInfin = clas.PerformInfinitePoint();
2458 if ( stPoint != stInfin ) break;
2460 if ( j > loops.Length()) {
2461 roots.Append ( wr );
2462 // loops.Remove ( i-- );
2466 // And remove them from the list of loops
2467 for ( i = 1; i <= loops.Length(); i++ )
2468 for ( Standard_Integer j = 1; j <= roots.Length(); j++ )
2469 if ( loops(i).IsSame ( roots(j) ) ) { loops.Remove(i--); break; }
2471 // check for lost wires, and if they are, make them roots
2472 if ( roots.Length() <=0 && loops.Length() >0 ) {
2474 cout << "Error: ShapeFix_ComposeShell::MakeFacesOnPatch: can't dispatch wires" << endl;
2476 for ( Standard_Integer j=1; j <= loops.Length(); j++ ) {
2477 roots.Append ( loops(j) );
2482 // Then iterate on loops
2483 for ( i=1; i <= roots.Length(); i++ ) {
2484 Standard_Boolean reverse = Standard_False;
2485 TopoDS_Wire wire = TopoDS::Wire ( roots(i) );
2487 B.MakeFace ( fc, surf, myLoc, ::Precision::Confusion() );
2489 BRepTopAdaptor_FClass2d clas ( fc, ::Precision::PConfusion() );
2490 if ( clas.PerformInfinitePoint() == TopAbs_IN ) {
2491 reverse = Standard_True;
2493 cout << "Warning: ShapeFix_ComposeShell::MakeFacesOnPatch: badly oriented wire" << endl;
2497 // find all holes for that loop
2498 TopTools_SequenceOfShape holes; // holes in holes not supported
2499 Standard_Integer j; // svv #1
2500 for ( j=1; j <= loops.Length(); j++ ) {
2502 if(loops(j).ShapeType() == TopAbs_WIRE) {
2503 TopoDS_Wire bw = TopoDS::Wire ( loops(j) );
2504 TopoDS_Iterator ew ( bw );
2505 if ( ! ew.More() ) continue;
2506 TopoDS_Edge ed = TopoDS::Edge ( ew.Value() );
2507 Standard_Real cf, cl;
2508 Handle(Geom2d_Curve) cw = BRep_Tool::CurveOnSurface ( ed, pf, cf, cl );
2509 if ( cw.IsNull() ) continue;
2510 unp = cw->Value ( 0.5 * ( cf + cl ) );
2512 else if(loops(j).ShapeType() == TopAbs_VERTEX) {
2513 TopoDS_Vertex aV = TopoDS::Vertex(loops(j));
2514 gp_Pnt aP = BRep_Tool::Pnt(aV);
2515 unp = aSurfTool->ValueOfUV(aP,Precision::Confusion());
2519 TopAbs_State state = clas.Perform (unp,Standard_False);
2520 if ((state == TopAbs_OUT) == reverse) {
2521 holes.Append ( loops(j) );
2522 loops.Remove ( j-- );
2526 // and add them to new face (no orienting is done)
2527 TopoDS_Face newFace;
2528 B.MakeFace ( newFace, surf, myLoc, ::Precision::Confusion() );
2529 B.Add ( newFace, wire );
2530 for ( j=1; j <= holes.Length(); j++ ) {
2531 TopoDS_Shape aSh = holes(j);
2532 if(aSh.ShapeType() == TopAbs_VERTEX) {
2533 TopoDS_Vertex aNewV = ShapeAnalysis_TransferParametersProj::CopyNMVertex(TopoDS::Vertex(aSh), newFace,myFace);
2534 Context()->Replace(aSh,aNewV);
2535 B.Add ( newFace,aNewV);
2538 B.Add ( newFace, holes(j) );
2540 faces.Append ( newFace );
2542 // check for lost wires, and if they are, make them roots
2543 if ( i == roots.Length() && loops.Length() >0 ) {
2545 cout << "Error: ShapeFix_ComposeShell::MakeFacesOnPatch: can't dispatch wires" << endl;
2547 for ( j=1; j <= loops.Length(); j++ ) {
2548 TopoDS_Shape aSh = loops(j);
2549 if(aSh.ShapeType() == TopAbs_WIRE && (aSh.Orientation() == TopAbs_FORWARD ||
2550 aSh.Orientation() == TopAbs_REVERSED))
2551 roots.Append ( loops(j) );
2558 //=======================================================================
2559 //function : DispatchWires
2561 //=======================================================================
2563 void ShapeFix_ComposeShell::DispatchWires (TopTools_SequenceOfShape &faces,
2564 ShapeFix_SequenceOfWireSegment& wires) const
2568 // in closed mode, apply FixShifted to all wires before dispatching them
2569 if ( myClosedMode ) {
2571 sfw.SetFace ( myFace );
2572 sfw.SetPrecision ( Precision() );
2574 // pdn: shift pcurves in the seam to make OK shape w/o fixshifted
2576 for ( i=1; i <= wires.Length(); i++ ) {
2577 if(wires(i).IsVertex())
2579 Handle(ShapeExtend_WireData) sbwd = wires(i).WireData();
2581 for(Standard_Integer jL=1; jL <= sbwd->NbEdges(); jL++ ) {
2582 TopoDS_Edge E = sbwd->Edge(jL);
2583 if ( E.Orientation() == TopAbs_REVERSED && BRep_Tool::IsClosed(E,myFace) ) {
2584 Standard_Real f1,l1, f2, l2;
2585 Handle(Geom2d_Curve) c21 = BRep_Tool::CurveOnSurface(E,myFace,f1,l1);
2586 TopoDS_Shape dummy = E.Reversed();
2587 Handle(Geom2d_Curve) c22 = BRep_Tool::CurveOnSurface(TopoDS::Edge(dummy),myFace,f2,l2);
2588 Standard_Real dPreci = ::Precision::PConfusion()*Precision::PConfusion();
2589 gp_Pnt2d pf1 = c21->Value(f1);
2590 gp_Pnt2d pl1 = c21->Value(l1);
2591 gp_Pnt2d pf2 = c22->Value(f2);
2592 gp_Pnt2d pl2 = c22->Value(l2);
2593 if ( c21 == c22 || pf1.SquareDistance(pf2) < dPreci ||
2594 pl1.SquareDistance(pl2) < dPreci ) {
2595 gp_Vec2d shift(0.,0.);
2596 if ( myUClosed && Abs ( pf2.X() - pl2.X() ) < ::Precision::PConfusion() )
2597 shift.SetX(myUPeriod);
2598 if ( myVClosed && Abs ( pf2.Y() - pl2.Y() ) < ::Precision::PConfusion() )
2599 shift.SetY(myVPeriod);
2600 c22->Translate(shift);
2606 for ( i=1; i <= wires.Length(); i++ ) {
2607 if(wires(i).IsVertex())
2609 Handle(ShapeExtend_WireData) sbwd = wires(i).WireData();
2611 //: abv 30.08.01: torHalf2.sat: if wire contains single degenerated
2612 // edge, skip that wire
2613 if ( sbwd->NbEdges() <=0 ||
2614 ( sbwd->NbEdges() ==1 && BRep_Tool::Degenerated(sbwd->Edge(1)) ) ) {
2622 // force recomputation of degenerated edges (clear pcurves)
2623 ShapeBuild_Edge sbe;
2624 for (Standard_Integer jL=1; jL <= sbwd->NbEdges(); jL++ ) {
2625 if ( BRep_Tool::Degenerated(sbwd->Edge(jL)) )
2626 sbe.RemovePCurve(sbwd->Edge(jL),myFace);
2627 // sfw.FixDegenerated(jL);
2629 sfw.FixDegenerated();
2633 // Compute center points for wires
2634 TColgp_SequenceOfPnt2d mPnts;
2635 Standard_Integer nb = wires.Length();
2637 // pdn protection on empty sequence
2641 Standard_Integer i; //svv #1
2642 for ( i = 1; i <= nb; i++ )
2643 mPnts.Append ( GetMiddlePoint ( wires(i), myFace ) );
2645 // Put each wire on its own surface patch (by reassigning pcurves)
2646 // and build 3d curve if necessary
2647 ShapeBuild_ReShape rs;
2648 ShapeBuild_Edge sbe;
2649 ShapeAnalysis_Edge sae;
2650 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
2652 Standard_Real U1,U2,V1,V2;
2653 myGrid->Bounds(U1,U2,V1,V2);
2654 for ( i = 1; i <= nb; i++ ) {
2655 gp_Pnt2d pnt = mPnts(i);
2656 Standard_Real ush =0., vsh=0.;
2658 ush = ShapeAnalysis::AdjustToPeriod(pnt.X(),U1,U2);
2659 pnt.SetX(pnt.X()+ush);
2662 vsh = ShapeAnalysis::AdjustToPeriod(pnt.Y(),V1,V2);
2663 pnt.SetY(pnt.Y()+vsh);
2666 Standard_Integer indU = myGrid->LocateUParameter ( pnt.X() );
2667 Standard_Integer indV = myGrid->LocateVParameter ( pnt.Y() );
2669 // compute parametric transformation
2671 Standard_Real uFact=1.;
2672 Standard_Boolean needT = myGrid->GlobalToLocalTransformation ( indU, indV, uFact, T );
2673 if ( ush != 0. || vsh != 0. ) {
2675 Sh.SetTranslation ( gp_Vec2d ( ush, vsh ) );
2677 needT = Standard_True;
2679 if(wires(i).IsVertex())
2681 Handle(Geom_Surface) surf = myGrid->Patch ( indU, indV );
2683 B.MakeFace ( face, surf, myLoc, ::Precision::Confusion() );
2684 Handle(ShapeExtend_WireData) sewd = wires(i).WireData();
2685 for ( Standard_Integer j = 1; j <= sewd->NbEdges(); j++ ) {
2686 // Standard_Integer nsplit = ApplyContext ( sewd, j, context );
2687 // if ( nsplit <1 ) { j--; continue; }
2689 TopoDS_Edge edge = sewd->Edge(j);
2691 // !! Accurately copy pcurves for SEAMS and SEAM-like edges !!
2693 // if edge is already copied, don`t copy any more
2694 TopoDS_Edge newEdge;
2695 TopoDS_Edge anInitEdge = edge;
2696 Standard_Boolean ismanifold = (edge.Orientation() == TopAbs_FORWARD ||
2697 edge.Orientation() == TopAbs_REVERSED);
2698 if ( rs.IsRecorded ( edge ) ) {
2700 TopoDS_Shape tmpNE = rs.Value(edge);
2701 newEdge = TopoDS::Edge ( tmpNE );
2705 anInitEdge.Orientation(TopAbs_FORWARD);
2707 newEdge = sbe.Copy ( anInitEdge, Standard_False );
2709 newEdge.Orientation(edge.Orientation());
2710 rs.Replace ( edge, newEdge );
2711 Context()->Replace ( edge, newEdge );
2714 sbe.ReassignPCurve ( newEdge, myFace, face );
2716 // transform pcurve to parametric space of patch
2719 Handle(Geom2d_Curve) c2d;
2720 if ( sae.PCurve ( newEdge, face, c2d, f, l, Standard_False ) ) {
2721 Standard_Real newf = f, newl = l;
2722 Handle(Geom2d_Curve) c2dnew = sbe.TransformPCurve ( c2d, T, uFact, newf, newl );
2723 if ( BRep_Tool::IsClosed ( newEdge, face ) ) {
2724 Standard_Real cf, cl;
2725 Handle(Geom2d_Curve) c2d2;
2727 TopoDS_Shape tmpE = newEdge.Reversed();
2728 TopoDS_Edge e2 = TopoDS::Edge (tmpE );
2729 if ( sae.PCurve ( e2, face, c2d2, cf, cl, Standard_False ) ) {
2730 if ( newEdge.Orientation() == TopAbs_FORWARD )
2731 B.UpdateEdge ( newEdge, c2dnew, c2d2, face, 0. );
2732 else B.UpdateEdge ( newEdge, c2d2, c2dnew, face, 0. );
2734 else B.UpdateEdge ( newEdge, c2dnew, face, 0. );
2736 else B.UpdateEdge ( newEdge, c2dnew, face, 0. );
2737 B.Range ( newEdge, face, newf, newl );
2738 if ( (newf != f || newl != l) && !BRep_Tool::Degenerated(newEdge) )
2739 B.SameRange ( newEdge, Standard_False );
2743 if(!BRep_Tool::SameRange(newEdge)) {
2746 TopoDS_Edge afe = TopoDS::Edge(newEdge.Oriented(TopAbs_FORWARD));
2747 etmp = sbe.Copy (afe , Standard_False );
2750 etmp = sbe.Copy ( newEdge, Standard_False );
2751 sfe->FixAddCurve3d ( etmp );
2752 Standard_Real cf, cl;
2753 Handle(Geom_Curve) c3d;
2754 if(sae.Curve3d(etmp,c3d,cf,cl,Standard_False)) {
2755 B.UpdateEdge ( newEdge, c3d, 0. );
2756 sbe.SetRange3d ( newEdge, cf, cl );
2760 sfe->FixAddCurve3d ( newEdge );
2761 sewd->Set ( newEdge, j );
2765 // Collect wires in packets lying on same surface and dispatch them
2766 TColStd_Array1OfBoolean used ( 1, nb );
2767 used.Init ( Standard_False );
2769 TopTools_SequenceOfShape loops;
2771 Handle(Geom_Surface) Surf;
2772 for ( i = 1; i <= nb; i++ ) {
2773 if ( used(i) ) continue;
2774 Handle(Geom_Surface) S = myGrid->Patch ( mPnts(i) );
2775 if ( Surf.IsNull() ) Surf = S;
2776 else if ( S != Surf ) continue;
2777 used(i) = Standard_True;
2778 ShapeFix_WireSegment aSeg = wires(i);
2779 if(aSeg.IsVertex()) {
2780 TopoDS_Vertex aVert = aSeg.GetVertex();
2781 if(aVert.Orientation() == TopAbs_INTERNAL)
2782 loops.Append(wires(i).GetVertex());
2785 Handle(ShapeExtend_WireData) aWD = aSeg.WireData();
2787 loops.Append ( aWD->Wire() );
2790 if ( Surf.IsNull() ) break;
2792 MakeFacesOnPatch ( faces, Surf, loops );
2796 //======================================================================
2797 //function : SetTransferParamTool
2799 //=======================================================================
2801 void ShapeFix_ComposeShell::SetTransferParamTool(const Handle(ShapeAnalysis_TransferParameters)& TransferParam)
2803 myTransferParamTool = TransferParam;
2806 //=======================================================================
2807 //function : GetTransferParamTool
2809 //=======================================================================
2811 Handle(ShapeAnalysis_TransferParameters) ShapeFix_ComposeShell::GetTransferParamTool() const
2813 return myTransferParamTool;
2816 //=======================================================================
2817 //function : ClosedMode
2819 //=======================================================================
2821 Standard_Boolean &ShapeFix_ComposeShell::ClosedMode()
2823 return myClosedMode;