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_ElementarySurface.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 // avoid false detection of 'Closed' on very thin faces
122 if (theSurface->IsKind(STANDARD_TYPE(Geom_ElementarySurface))) {
123 myUClosed = myUClosed && theSurface->IsUClosed();
124 myVClosed = myVClosed && theSurface->IsVClosed();
126 Standard_Real U0,U1,V0,V1,GU0 = 0.,GU1 = 0.,GV0 = 0.,GV1 = 0.;
127 theSurface->Bounds(U0,U1,V0,V1);
128 if (::Precision::IsInfinite (U0) || ::Precision::IsInfinite (U1) ||
129 ::Precision::IsInfinite (V0) || ::Precision::IsInfinite (V1))
130 BRepTools::UVBounds(Face, GU0, GU1, GV0, GV1);
132 if (::Precision::IsInfinite (V0)) V0 = GV0;
133 if (::Precision::IsInfinite (V1)) V1 = GV1;
134 gp_Pnt P0 = theSurface->Value(U0,(V0+V1)/2.);
135 gp_Pnt P1 = theSurface->Value(U1,(V0+V1)/2.);
136 if (P0.Distance(P1) > Precision::Confusion()*10)
137 myUClosed = Standard_False;
140 if (::Precision::IsInfinite (U0)) U0 = GU0;
141 if (::Precision::IsInfinite (U1)) U1 = GU1;
142 gp_Pnt P0 = theSurface->Value((U0+U1)/2.,V0);
143 gp_Pnt P1 = theSurface->Value((U0+U1)/2.,V1);
144 if (P0.Distance(P1) > Precision::Confusion()*10)
145 myVClosed = Standard_False;
148 // DTK-CKY 100531 end
152 TopoDS_Shape tmpF = Face.Oriented ( TopAbs_FORWARD );
153 myFace = TopoDS::Face ( tmpF ); // for correct dealing with seams
154 myOrient = Face.Orientation();
156 myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
158 // Compute resolution (checking in 2d is necessary for splitting
159 // degenerated edges and avoiding NotClosed)
160 myUResolution = myVResolution = RealLast();
161 for ( Standard_Integer i=1; i <= myGrid->NbUPatches(); i++ ) {
162 Standard_Real uRange = myGrid->UJointValue(i+1)-myGrid->UJointValue(i);
163 for ( Standard_Integer j=1; j <= myGrid->NbVPatches(); j++ ) {
164 Standard_Real vRange = myGrid->VJointValue(j+1)-myGrid->VJointValue(j);
165 Standard_Real u1,u2,v1,v2;
166 myGrid->Patch(i,j)->Bounds(u1,u2,v1,v2);
167 GeomAdaptor_Surface GAS ( myGrid->Patch(i,j) );
168 Standard_Real ures = GAS.UResolution ( 1. )*uRange/(u2-u1);
169 Standard_Real vres = GAS.VResolution ( 1. )*vRange/(v2-v1);
170 if ( ures >0. && myUResolution > ures ) myUResolution = ures;
171 if ( vres >0. && myVResolution > vres ) myVResolution = vres;
174 if ( myUResolution == RealLast() ) myUResolution = ::Precision::Parametric ( 1. );
175 if ( myVResolution == RealLast() ) myVResolution = ::Precision::Parametric ( 1. );
178 //=======================================================================
181 //=======================================================================
183 Standard_Boolean ShapeFix_ComposeShell::Perform ()
185 myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
186 myInvertEdgeStatus = Standard_False;
188 ShapeFix_SequenceOfWireSegment seqw; // working data: wire segments
190 // Init seqw by initial set of wires (with corresponding orientation)
192 if(seqw.Length() == 0) {
193 myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_FAIL6 );
194 return Standard_False;
197 // Split edges in the wires by grid and add internal segments of grid (parts of cutting lines)
198 SplitByGrid ( seqw );
200 // Split all the wires into segments by common vertices (intersections)
203 // Then, collect resulting wires
204 ShapeFix_SequenceOfWireSegment wires; // resulting wires
205 CollectWires ( wires, seqw );
207 // And construct resulting faces
208 TopTools_SequenceOfShape faces;
209 DispatchWires ( faces, wires );
211 // Finally, construct resulting shell
212 if ( faces.Length() !=1 ) {
216 for ( Standard_Integer i=1; i <= faces.Length(); i++ )
217 B.Add ( S, faces(i) );
220 else myResult = faces(1);
221 myResult.Orientation ( myOrient );
223 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
224 return Standard_True;
227 //=======================================================================
228 //function : SplitEdges
230 //=======================================================================
232 void ShapeFix_ComposeShell::SplitEdges ()
234 myStatus = ShapeExtend::EncodeStatus ( ShapeExtend_OK );
236 ShapeFix_SequenceOfWireSegment seqw; // working data: wire segments
238 // Init seqw by initial set of wires (with corresponding orientation)
241 // Split edges in the wires by grid and add internal segments of grid (parts of cutting lines)
242 SplitByGrid ( seqw );
245 //=======================================================================
248 //=======================================================================
250 const TopoDS_Shape& ShapeFix_ComposeShell::Result () const
255 //=======================================================================
258 //=======================================================================
260 Standard_Boolean ShapeFix_ComposeShell::Status (const ShapeExtend_Status status) const
262 return ShapeExtend::DecodeStatus ( myStatus, status );
265 //=======================================================================
266 // PRIVATE (working) METHODS
267 //=======================================================================
269 #define TOLINT 1.e-10 // precision for intersection
271 // Local definitions: characteristics of intersection point
273 #define IOR_UNDEF 0 // undefined side
274 #define IOR_LEFT 1 // to left side of cutting line
275 #define IOR_RIGHT 2 // to right side of cutting line
276 #define IOR_BOTH 3 // crossing
277 #define IOR_POS 4 // in case of cycle on full period, whether first point is right
279 #define ITP_INTER 8 // crossing
280 #define ITP_BEGSEG 16 // start of tangential segment
281 #define ITP_ENDSEG 32 // stop of tangential segment
282 #define ITP_TANG 64 // tangential point
284 //=======================================================================
285 //function : PointLineDeviation
287 //=======================================================================
288 // Return (signed) deviation of point from line
289 static Standard_Real PointLineDeviation (const gp_Pnt2d &p, const gp_Lin2d &line)
291 gp_Dir2d dir = line.Direction();
292 gp_Dir2d n ( -dir.Y(), dir.X() );
293 return n.XY() * ( p.XY() - line.Location().XY() );
296 //=======================================================================
297 //function : PointLinePosition
299 //=======================================================================
300 // Define position of point relative to line
301 static Standard_Integer PointLinePosition (const gp_Pnt2d &p, const gp_Lin2d &line,
304 dev = PointLineDeviation ( p, line );
305 return ( dev > TOLINT ? IOR_LEFT : ( dev < -TOLINT ? IOR_RIGHT : IOR_UNDEF ) );
308 //=======================================================================
309 //function : PointLinePosition
311 //=======================================================================
312 // Define position of point relative to line
313 static Standard_Integer PointLinePosition (const gp_Pnt2d &p, const gp_Lin2d &line)
316 return PointLinePosition ( p, line, dev );
319 //=======================================================================
320 //function : ParamPointsOnLine
322 //=======================================================================
323 // Compute parameter of point on line
324 static inline Standard_Real ParamPointOnLine (const gp_Pnt2d &p, const gp_Lin2d &line)
326 return line.Direction().XY() * ( p.XY() - line.Location().XY() );
329 //=======================================================================
330 //function : ParamPointsOnLine
332 //=======================================================================
333 // Compute parameter of two points on line (as intersection of segment)
334 static Standard_Real ParamPointsOnLine (const gp_Pnt2d &p1, const gp_Pnt2d &p2,
335 const gp_Lin2d &line)
337 Standard_Real dist1 = PointLineDeviation ( p1, line );
338 Standard_Real dist2 = PointLineDeviation ( p2, line );
339 // in most cases, one of points is on line
340 if ( Abs ( dist1 ) < ::Precision::PConfusion() ) {
341 if ( Abs ( dist2 ) < ::Precision::PConfusion() )
342 return 0.5 * ( ParamPointOnLine ( p1, line ) + ParamPointOnLine ( p2, line ) );
343 return ParamPointOnLine ( p1, line );
345 if ( Abs ( dist2 ) < ::Precision::PConfusion() )
346 return ParamPointOnLine ( p2, line );
348 if ( dist2 * dist1 >0 )
349 return 0.5 * ( ParamPointOnLine ( p1, line ) + ParamPointOnLine ( p2, line ) );
350 // else compute intersection
351 return ( ParamPointOnLine ( p1, line ) * dist2 -
352 ParamPointOnLine ( p2, line ) * dist1 ) / ( dist2 - dist1 );
355 //=======================================================================
356 //function : ProjectPointOnLine
358 //=======================================================================
359 // Compute projection of point on line
360 static inline gp_Pnt2d ProjectPointOnLine (const gp_Pnt2d &p, const gp_Lin2d &line)
362 return line.Location().XY() + line.Direction().XY() * ParamPointOnLine ( p, line );
365 //=======================================================================
366 //function : ApplyContext
368 //=======================================================================
369 // Apply context to one edge in the wire and put result into this wire
370 static Standard_Integer ApplyContext (ShapeFix_WireSegment &wire,
371 const Standard_Integer iedge,
372 const Handle(ShapeBuild_ReShape) &context)
374 TopoDS_Edge edge = wire.Edge ( iedge );
375 TopoDS_Shape res = context->Apply ( edge );
377 if ( res.IsSame ( edge ) ) return 1;
379 if ( res.ShapeType() == TopAbs_EDGE ) {
380 wire.SetEdge ( iedge, TopoDS::Edge ( res ) );
384 Standard_Integer index = iedge;
386 Handle(ShapeExtend_WireData) segw = new ShapeExtend_WireData;
387 segw->ManifoldMode() = Standard_False;
388 for ( TopoDS_Iterator it(res); it.More(); it.Next() ) {
389 TopoDS_Edge E = TopoDS::Edge ( it.Value() );
390 if ( ! E.IsNull() ) segw->Add ( E );
392 else std::cout << "Error: ShapeFix_ComposeShell, ApplyContext: wrong mapping of edge" << std::endl;
396 // add edges into the wire in correct order
397 if ( segw->NbEdges() >0 ) {
398 Standard_Integer ind, iumin, iumax, ivmin, ivmax;
399 wire.GetPatchIndex ( iedge, iumin, iumax, ivmin, ivmax );
400 Standard_Integer nbEdges = segw->NbEdges();
401 for ( Standard_Integer i=1; i <= nbEdges; i++, index++ ) {
402 ind = ( edge.Orientation() == TopAbs_FORWARD || edge.Orientation() == TopAbs_INTERNAL ? i : segw->NbEdges()-i+1 );
403 TopoDS_Edge aE = segw->Edge ( ind );
404 if ( i==1 ) wire.SetEdge ( index, aE );
405 else wire.AddEdge ( index, aE, iumin, iumax, ivmin, ivmax );
409 else std::cout << "Warning: ShapeFix_ComposeShell, ApplyContext: edge is to remove - not implemented" << std::endl;
412 return index - iedge;
416 //=======================================================================
417 //function : IsCoincided
419 //=======================================================================
420 // check points coincidence
421 static inline Standard_Boolean IsCoincided (const gp_Pnt2d &p1, const gp_Pnt2d &p2,
422 const Standard_Real UResolution,
423 const Standard_Real VResolution,
424 const Standard_Real tol)
426 //pdn Maximal accuracy is working precision of intersector.
427 Standard_Real UTolerance = UResolution * tol;
428 Standard_Real VTolerance = VResolution * tol;
429 return Abs ( p1.X() - p2.X() ) <= Max(TOLINT,UTolerance) &&
430 Abs ( p1.Y() - p2.Y() ) <= Max(TOLINT,VTolerance);
434 //=======================================================================
435 //function : GetPatchIndex
437 //=======================================================================
439 // computes index for the patch by given parameter Param
440 static Standard_Integer GetPatchIndex (const Standard_Real Param,
441 const Handle(TColStd_HArray1OfReal) &Params,
442 const Standard_Boolean isClosed)
444 Standard_Integer NP = Params->Upper();
445 Standard_Real period = Params->Value(NP) - Params->Value(1);
446 Standard_Real shift = 0;
448 shift = ShapeAnalysis::AdjustToPeriod ( Param, Params->Value(1), Params->Value(NP) );
449 Standard_Real p = Param + shift;
451 // locate patch: the same algo as in SE_CS::LocateParameter()
452 Standard_Integer i; // svv #1
453 for ( i = 2; i < NP; i++ ) {
454 // Standard_Real par = Params->Value(i);
455 if ( p < Params->Value(i) ) break;
459 Standard_Real ish = shift / period;
460 Standard_Integer ishift = (Standard_Integer)( ish <0 ? ish - 0.5 : ish + 0.5 );
461 return i - ishift * ( NP - 1 );
464 //=======================================================================
465 //function : LoadWires
467 //=======================================================================
469 void ShapeFix_ComposeShell::LoadWires (ShapeFix_SequenceOfWireSegment &seqw) const
473 // Init seqw by initial set of wires (with corresponding orientation)
474 for ( TopoDS_Iterator iw(myFace,Standard_False); iw.More(); iw.Next() )
476 TopoDS_Shape tmpW = Context()->Apply ( iw.Value() ) ;
477 if(tmpW.ShapeType() != TopAbs_WIRE)
479 if(tmpW.ShapeType() == TopAbs_VERTEX)
481 ShapeFix_WireSegment seg; //(( isOuter ? TopAbs_REVERSED : TopAbs_FORWARD ) );
482 seg.SetVertex(TopoDS::Vertex(tmpW));
483 seg.Orientation(tmpW.Orientation());
490 TopoDS_Wire wire = TopoDS::Wire ( tmpW );
492 Standard_Boolean isNonManifold = ( wire.Orientation() != TopAbs_REVERSED &&
493 wire.Orientation() != TopAbs_FORWARD );
495 // protect against INTERNAL/EXTERNAL wires
496 // if ( wire.Orientation() != TopAbs_REVERSED &&
497 // wire.Orientation() != TopAbs_FORWARD ) continue;
499 // determine orientation of the wire
500 // TopoDS_Face face = TopoDS::Face ( myFace.EmptyCopied() );
501 // B.Add ( face, wire );
502 // Standard_Boolean isOuter = ShapeAnalysis::IsOuterBound ( face );
506 Handle(ShapeExtend_WireData) sbwd = new ShapeExtend_WireData ( wire ,Standard_True,Standard_False);
507 //pdn protection againts of wires w/o edges
508 Standard_Integer nbEdges = sbwd->NbEdges();
511 //wire segments for non-manifold topology should have INTERNAL orientation
512 ShapeFix_WireSegment seg ( sbwd, TopAbs_INTERNAL);
518 //splitting wires containing manifold and non-manifold parts on a separate
520 Handle(ShapeExtend_WireData) sbwdM = new ShapeExtend_WireData();
521 Handle(ShapeExtend_WireData) sbwdNM = new ShapeExtend_WireData();
522 sbwdNM->ManifoldMode() = Standard_False;
523 TopoDS_Iterator aIt(wire);
524 for( ; aIt.More(); aIt.Next())
526 TopoDS_Edge E = TopoDS::Edge ( aIt.Value() );
527 if(E.Orientation() == TopAbs_FORWARD || E.Orientation() == TopAbs_REVERSED)
533 Standard_Integer nbMEdges = sbwdM->NbEdges();
534 Standard_Integer nbNMEdges = sbwdNM->NbEdges();
538 ShapeFix_WireSegment seg ( sbwdNM, TopAbs_INTERNAL); //(( isOuter ? TopAbs_REVERSED : TopAbs_FORWARD ) );
543 // Orientation is set so as to allow the segment to be traversed in only one direction
545 Handle(ShapeFix_Wire) sfw = new ShapeFix_Wire;
547 Standard_Integer stat=0;
548 Handle(Geom_Surface) gs = BRep_Tool::Surface(myFace);
549 if( gs->IsUPeriodic() && gs->IsVPeriodic() )
551 // For torus-like shapes, first reorder in 2d since reorder is indifferent in 3d
552 ShapeAnalysis_WireOrder sawo(Standard_False, 0);
553 ShapeAnalysis_Edge sae;
554 for(Standard_Integer i = 1; i <= nbMEdges; i++) {
556 Handle(Geom2d_Curve) c2d;
558 TopoDS_Shape tmpF = myFace.Oriented(TopAbs_FORWARD);
559 if(!sae.PCurve(sbwdM->Edge(i),TopoDS::Face(tmpF),c2d,f,l))
561 sawo.Add(c2d->Value(f).XY(),c2d->Value(l).XY());
565 stat = (sawo.Status() < 0 ? -1 : 1);
566 sfw->FixReorder(sawo);
570 if (sfw->StatusReorder(ShapeExtend_DONE3))
576 TopoDS_Shape dummy = myFace.EmptyCopied();
577 TopoDS_Face face = TopoDS::Face ( dummy );
578 B.Add ( face, wire );
579 Standard_Boolean isOuter = ShapeAnalysis::IsOuterBound ( face );
580 TopoDS_Wire w = sbwdM->Wire();
581 dummy = myFace.EmptyCopied();
582 face = TopoDS::Face ( dummy );
584 Standard_Boolean isOuterAfter = ShapeAnalysis::IsOuterBound ( face );
585 if(isOuter!=isOuterAfter)
586 sbwdM->Reverse(face);
589 ShapeFix_WireSegment seg ( sbwdM, TopAbs_REVERSED ); //(( isOuter ? TopAbs_REVERSED : TopAbs_FORWARD ) );
596 //=======================================================================
597 //function : ComputeCode
598 //purpose : compute code for wire segment between two intersections (by deviation)
599 //=======================================================================
601 Standard_Integer ShapeFix_ComposeShell::ComputeCode (const Handle(ShapeExtend_WireData) &wire,
602 const gp_Lin2d &line,
603 const Standard_Integer begInd,
604 const Standard_Integer endInd,
605 const Standard_Real begPar,
606 const Standard_Real endPar,
607 const Standard_Boolean isInternal)
609 Standard_Integer code = IOR_UNDEF;
611 ShapeAnalysis_Edge sae;
612 const Standard_Integer NPOINTS = 5; // number of points for measuring deviation
614 // track special closed case: segment starts at end of edge and ends at its beginning
615 Standard_Integer special = ( begInd == endInd &&
616 ( wire->Edge(begInd).Orientation() == TopAbs_FORWARD ||
617 wire->Edge(begInd).Orientation() == TopAbs_INTERNAL) ==
618 ( begPar > endPar ) ? 1 : 0);
619 if ( ! special && begInd == endInd && begPar == endPar && (myClosedMode || isInternal))
622 // for tracking cases in closed mode
623 Standard_Boolean begin=Standard_True;
624 Standard_Real shift=0;
627 // check if segment is tangency
628 // Segment is considered as tangency if deviation of pcurve from line
629 // (in 2d) measured by NPOINTS points is less than tolerance of edge
630 // (recomputed to 2d using Resolution).
632 Standard_Integer nb = wire->NbEdges();
634 Standard_Integer i; // svv #1
635 for ( i=begInd; ; i++ ) {
637 TopoDS_Edge edge = wire->Edge ( i );;
639 Handle(Geom2d_Curve) c2d;
641 if ( ! sae.PCurve ( edge, myFace, c2d, f, l, Standard_False ) ) {
642 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL3 );
645 Standard_Real tol = LimitTolerance(BRep_Tool::Tolerance ( edge ));
646 Standard_Boolean isreversed = ( edge.Orientation() == TopAbs_REVERSED );
648 Standard_Real par1 = ( i == begInd && special >=0 ? begPar : ( isreversed ? l : f ) );
649 Standard_Real par2 = ( i == endInd && special <=0 ? endPar : ( isreversed ? f : l ) );
650 Standard_Real dpar = ( par2 - par1 ) / ( NPOINTS - 1 );
651 Standard_Integer np = ( Abs ( dpar ) < ::Precision::PConfusion() ? 1 : NPOINTS );
652 Standard_Integer j; // svv #1
653 for ( j=0; j < np; j++ ) {
654 Standard_Real par = par1 + dpar * j;
655 gp_Pnt2d p2d = c2d->Value ( par );
656 if ( myClosedMode ) {
657 if ( myUClosed && Abs ( line.Direction().X() ) < ::Precision::PConfusion() ) {
658 if ( begin ) shift = ShapeAnalysis::AdjustByPeriod ( p2d.X(), line.Location().X(), myUPeriod );
659 else if ( ! j ) shift = ShapeAnalysis::AdjustByPeriod ( p2d.X()-p2d0.X(), 0., myUPeriod );
660 p2d.SetX ( p2d.X() + shift );
662 if ( myVClosed && Abs ( line.Direction().Y() ) < ::Precision::PConfusion() ) {
663 if ( begin ) shift = ShapeAnalysis::AdjustByPeriod ( p2d.Y(), line.Location().Y(), myVPeriod );
664 else if ( ! j ) shift = ShapeAnalysis::AdjustByPeriod ( p2d.Y()-p2d0.Y(), 0., myVPeriod );
665 p2d.SetY ( p2d.Y() + shift );
667 begin = Standard_False;
670 Standard_Integer pos = PointLinePosition ( p2d, line );
671 if ( pos == IOR_UNDEF ) continue;
673 // analyse the deviation
674 gp_Pnt2d p2dl = ProjectPointOnLine ( p2d, line );
675 if(!IsCoincided ( p2d, p2dl, myUResolution, myVResolution, tol )) {
676 if(!myClosedMode) { code = pos; break; }
682 if ( j < np ) { i = 0; break; } // not tangency
684 if ( special <=0 ) break;
688 if ( myClosedMode ) {
689 if ( code != IOR_UNDEF && ! begin ) {
690 // in closed mode, if segment is of 2*pi length, it is BOTH
691 Standard_Real dev = PointLineDeviation ( p2d0, line );
692 if ( myUClosed && Abs ( line.Direction().X() ) < ::Precision::PConfusion() ) {
693 if ( Abs ( Abs ( dev ) - myUPeriod ) < 0.1 * myUPeriod ) {
695 if ( dev >0 ) code |= IOR_POS;
697 else if(code==IOR_BOTH)
700 if ( myVClosed && Abs ( line.Direction().Y() ) < ::Precision::PConfusion() ) {
701 if ( Abs ( Abs ( dev ) - myVPeriod ) < 0.1 * myVPeriod ) {
703 if ( dev >0 ) code |= IOR_POS;
705 else if(code==IOR_BOTH)
711 if ( i ) code = IOR_UNDEF; // tangency
712 else if ( code == IOR_BOTH ) { // parity error in intersector
714 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
716 std::cout << "Warning: ShapeFix_ComposeShell::ComputeCode: lost intersection point" << std::endl;
722 //=======================================================================
723 //function : DistributeSplitPoints
725 //=======================================================================
726 // After applying context to (seam) edge, distribute its indices on new edges,
727 // according to their parameters on that edge
728 static void DistributeSplitPoints (const Handle(ShapeExtend_WireData) &sbwd,
729 const TopoDS_Face myFace,
730 const Standard_Integer index,
731 const Standard_Integer nsplit,
732 TColStd_SequenceOfInteger& indexes,
733 const TColStd_SequenceOfReal& values)
735 Standard_Boolean isreversed = ( nsplit >0 && sbwd->Edge(index).Orientation() == TopAbs_REVERSED );
737 TColStd_Array1OfReal params(0,nsplit);
738 Standard_Integer i; // svv #1
739 for ( i=0; i < nsplit; i++ ) {
741 BRep_Tool::Range ( sbwd->Edge(index+i), myFace, f, l );
742 params.SetValue ( i, ( isreversed ? l : f ) );
745 for ( i=1; i <= indexes.Length() && indexes(i) < index; i++ );
746 for ( Standard_Integer shift = 1; i <= indexes.Length() && indexes(i) == index; i++ ) {
747 while ( shift < nsplit && isreversed != (values(i) > params(shift)) ) shift++;
748 indexes.SetValue ( i, index + shift - 1 );
750 for ( ; i <= indexes.Length(); i++ )
751 indexes.SetValue ( i, indexes(i) + nsplit - 1 );
754 //=======================================================================
755 //function : CheckByCurve3d
757 //=======================================================================
758 static Standard_Integer CheckByCurve3d (const gp_Pnt &pos,
759 const Handle(Geom_Curve) &c3d,
760 const Standard_Real param,
762 const Standard_Real tol)
764 if ( c3d.IsNull() ) return Standard_True;
765 gp_Pnt p = c3d->Value(param);
766 if ( T.Form() != gp_Identity ) p.Transform ( T );
767 return pos.SquareDistance ( p ) <= tol * tol;
770 //=======================================================================
771 //function : DefinePatch
773 //=======================================================================
774 static void DefinePatch (ShapeFix_WireSegment &wire, const Standard_Integer code,
775 const Standard_Boolean isCutByU, const Standard_Integer cutIndex,
776 const Standard_Integer number = -1)
778 Standard_Integer nb = (number > 0 ? number : wire.NbEdges());
780 if ( ! ( code & IOR_LEFT ) ) wire.DefineIUMin ( nb, cutIndex );
781 if ( ! ( code & IOR_RIGHT ) ) wire.DefineIUMax ( nb, cutIndex );
784 if ( ! ( code & IOR_RIGHT ) ) wire.DefineIVMin ( nb, cutIndex );
785 if ( ! ( code & IOR_LEFT ) ) wire.DefineIVMax ( nb, cutIndex );
789 //=======================================================================
790 //function : GetGridResolution
792 //=======================================================================
793 static Standard_Real GetGridResolution(const Handle(TColStd_HArray1OfReal) SplitValues,
794 const Standard_Integer cutIndex)
796 Standard_Integer nb = SplitValues->Length();
797 Standard_Real leftLen = (cutIndex > 1 ? SplitValues->Value(cutIndex) - SplitValues->Value(cutIndex-1) :
798 SplitValues->Value(nb) -SplitValues->Value(nb-1));
799 Standard_Real rigthLen =(cutIndex < nb ? SplitValues->Value(cutIndex+1)-SplitValues->Value(cutIndex) :
800 SplitValues->Value(2) - SplitValues->Value(1));
801 return Min(leftLen,rigthLen)/3.;
804 //=======================================================================
805 //function : SplitWire
807 //=======================================================================
809 ShapeFix_WireSegment ShapeFix_ComposeShell::SplitWire (ShapeFix_WireSegment &wire,
810 TColStd_SequenceOfInteger& indexes,
811 const TColStd_SequenceOfReal& values,
812 TopTools_SequenceOfShape& vertices,
813 const TColStd_SequenceOfInteger &SegmentCodes,
814 const Standard_Boolean isCutByU,
815 const Standard_Integer cutIndex)
818 ShapeFix_WireSegment result;
819 Handle(ShapeAnalysis_Surface) aSurfTool =
820 new ShapeAnalysis_Surface ( BRep_Tool::Surface (myFace) );
821 Standard_Integer nbSplits = indexes.Length();
822 ShapeAnalysis_Edge sae;
823 Standard_Integer start = 1;
824 TopAbs_Orientation anWireOrient = wire.Orientation();
826 if ( ! myLoc.IsIdentity() ) T = myLoc.Inverted().Transformation();
828 // Processing edge by edge (assuming that split points are sorted along the wire)
829 for ( Standard_Integer i = 1; i <= wire.NbEdges(); i++ ) {
831 // for already splitted seam edge, redistribute its splitting points
832 Standard_Integer nsplit = ApplyContext ( wire, i, Context() );
834 DistributeSplitPoints ( wire.WireData(), myFace, i, nsplit, indexes, values );
837 std::cout << "Error: ShapeFix_ComposeShell::SplitWire: edge dismissed" << std::endl;
843 TopoDS_Edge edge = wire.Edge(i);
845 Standard_Integer iumin, iumax, ivmin, ivmax;
846 wire.GetPatchIndex ( i, iumin, iumax, ivmin, ivmax );
848 // Position code for first segment of edge
849 Standard_Integer code = SegmentCodes ( start >1 ? start-1 : SegmentCodes.Length() );
851 // Defining split parameters on edge
852 Standard_Integer stop = start;
853 while ( stop <= nbSplits && indexes(stop) == i ) stop++;
854 if ( stop == start ) {
855 result.AddEdge ( 0, edge, iumin, iumax, ivmin, ivmax );
856 if(code!=0 || wire.Orientation()!=TopAbs_EXTERNAL) // pdn 0 code handling for extertnal wires
857 DefinePatch ( result, code, isCutByU, cutIndex );
860 //find non-manifold vertices on edge
861 TopTools_SequenceOfShape aNMVertices;
862 TopoDS_Iterator aIt(edge,Standard_False);
863 for( ; aIt.More(); aIt.Next()) {
864 if(aIt.Value().Orientation() != TopAbs_FORWARD &&
865 aIt.Value().Orientation() != TopAbs_REVERSED)
866 aNMVertices.Append(aIt.Value());
869 // Collect data on edge
870 Standard_Real tolEdge = BRep_Tool::Tolerance(edge);
871 Standard_Real tol = LimitTolerance( tolEdge );
872 TopoDS_Vertex prevV = sae.FirstVertex(edge);
873 TopoDS_Vertex lastV = sae.LastVertex(edge);
874 Standard_Real prevVTol = LimitTolerance( BRep_Tool::Tolerance(prevV) );
875 Standard_Real lastVTol = LimitTolerance( BRep_Tool::Tolerance(lastV) );
876 gp_Pnt prevVPnt = BRep_Tool::Pnt(prevV);
877 gp_Pnt lastVPnt = BRep_Tool::Pnt(lastV);
878 if ( T.Form() != gp_Identity ) {
879 prevVPnt.Transform ( T );
880 lastVPnt.Transform ( T );
883 Handle(Geom_Curve) c3d;
884 Standard_Real f3d, l3d;
885 if ( ! sae.Curve3d ( edge, c3d, f3d, l3d ) ) { // not a crime
890 Standard_Real firstPar, lastPar;
891 Handle(Geom2d_Curve) C2d;
892 if ( ! sae.PCurve ( edge, myFace, C2d, firstPar, lastPar ) ) {
893 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
895 //finding sequence of non-manifold parameters
896 Standard_Integer nbNMVert = aNMVertices.Length();
897 TColStd_SequenceOfReal aNMVertParams;
899 Geom2dAdaptor_Curve adc(C2d);
900 Standard_Integer n =1;
901 for( ; n<= nbNMVert; n++) {
902 gp_Pnt apV = BRep_Tool::Pnt(TopoDS::Vertex(aNMVertices.Value(n)));
903 Standard_Real apar =firstPar;
904 Standard_Real adist2 =RealLast();
907 ShapeAnalysis_Curve asae;
908 adist2 = asae.Project(c3d,apV,Precision::Confusion(),aPproj,apar);
912 gp_Pnt2d aP2d = aSurfTool->ValueOfUV(apV,Precision::Confusion());
913 Extrema_ExtPC2d aExtr(aP2d,adc);
914 if(aExtr.IsDone() && aExtr.NbExt()) {
915 adist2 = aExtr.SquareDistance(1);
916 Standard_Integer index =1;
917 Standard_Integer k =2;
918 for( ; k <= aExtr.NbExt();k++) {
919 Standard_Real ad2 = aExtr.SquareDistance(k);
925 apar = aExtr.Point(index).Parameter();
928 aNMVertParams.Append(apar);
932 //pdn Claculating parametric shift
933 Standard_Boolean sp = (f3d == firstPar && l3d == lastPar);
934 Standard_Real span2d = lastPar - firstPar;
935 // Standard_Real ln2d = lastPar-prevPar;
936 // Standard_Real ln3d = l3d - f3d;
937 // Standard_Real fact = ln2d/ln3d;
938 // Standard_Real shift = prevPar - f3d*fact;
939 Standard_Real prevPar = firstPar;
940 gp_Pnt2d prevPnt2d = C2d->Value(prevPar);
941 gp_Pnt2d lastPnt2d = C2d->Value(lastPar);
942 gp_Pnt prevPnt = myGrid->Value ( prevPnt2d );
943 gp_Pnt lastPnt = myGrid->Value ( lastPnt2d );
944 Standard_Boolean isPeriodic = C2d->IsPeriodic();
945 Standard_Real aPeriod = (isPeriodic ? C2d->Period() :0.);
948 Standard_Integer NbEdgesStart = result.NbEdges();
949 Standard_Boolean splitted = Standard_False;
950 Standard_Real currPar=lastPar; //SK
951 for ( Standard_Integer j = start; j <= stop; prevPar = currPar, j++ ) {
952 if ( ! splitted && j >= stop ) {// no splitting at all
953 // code = SegmentCodes ( j >1 ? j-1 : SegmentCodes.Length() ); // classification code
956 currPar = ( j < stop ? values.Value(j) : lastPar );
957 //fix for case when pcurve is periodic and first parameter of edge is more than 2P
958 //method ShapeBuild_Edge::CopyRanges shift pcurve to range 0-2P and parameters of cutting
959 //should be shifted too. gka SAMTECH 28.07.06
961 if (currPar > (Max(lastPar,firstPar) +Precision::PConfusion()) ||
962 currPar < (Min(firstPar,lastPar)- Precision::PConfusion())) {
963 Standard_Real aShift = ShapeAnalysis::AdjustByPeriod(currPar, (firstPar+lastPar)*0.5,aPeriod);
971 // Try to adjust current splitting point to previous or end of edge
972 Standard_Boolean doCut = Standard_True;
974 if ( Abs ( currPar - lastPar ) < ::Precision::PConfusion() ) {
976 doCut = Standard_False;
978 else if ( Abs ( currPar - prevPar ) < ::Precision::PConfusion() ) {
979 vertices.Append ( prevV );
980 code = SegmentCodes ( j ); // classification code - update for next segment
981 continue; // no splitting at this point, go to next one
984 currPnt2d = C2d->Value(currPar);
985 currPnt = myGrid->Value ( currPnt2d );
986 if ( currPnt.Distance ( lastVPnt ) <= lastVTol &&
987 lastPnt.Distance ( currPnt ) <= tol &&
988 CheckByCurve3d ( lastVPnt, c3d, f3d+(currPar-firstPar)*(l3d-f3d)/span2d,
990 lastPnt.Distance ( myGrid->Value ( C2d->Value(0.5*(currPar+lastPar)) ) ) <= tol ) {
992 Standard_Real uRes = myUResolution;
993 Standard_Real vRes = myVResolution;
995 Standard_Real gridRes = GetGridResolution(myGrid->UJointValues(),cutIndex)/tol;
996 uRes = Min(myUResolution,gridRes);
999 Standard_Real gridRes = GetGridResolution(myGrid->VJointValues(),cutIndex)/tol;
1000 vRes = Min(myVResolution,gridRes);
1002 if ( IsCoincided ( lastPnt2d, currPnt2d, uRes, vRes, tol ) &&
1003 IsCoincided ( lastPnt2d, C2d->Value(0.5*(currPar+lastPar)), uRes, vRes, tol ) )
1004 doCut = Standard_False;
1006 else if ( currPnt.Distance ( prevVPnt ) <= prevVTol &&
1007 prevPnt.Distance ( currPnt ) <= tol &&
1008 CheckByCurve3d ( prevVPnt, c3d, f3d+(currPar-firstPar)*(l3d-f3d)/span2d,
1010 prevPnt.Distance ( myGrid->Value ( C2d->Value(0.5*(currPar+prevPar)) ) ) <= tol ) {
1012 Standard_Real uRes = myUResolution;
1013 Standard_Real vRes = myVResolution;
1015 Standard_Real gridRes = GetGridResolution(myGrid->UJointValues(),cutIndex)/tol;
1016 uRes = Min(myUResolution,gridRes);
1019 Standard_Real gridRes = GetGridResolution(myGrid->VJointValues(),cutIndex)/tol;
1020 vRes = Min(myVResolution,gridRes);
1022 if ( IsCoincided ( prevPnt2d, currPnt2d, uRes, vRes, tol ) &&
1023 IsCoincided ( prevPnt2d, C2d->Value(0.5*(currPar+prevPar)), uRes, vRes, tol ) ) {
1024 vertices.Append ( prevV );
1025 code = SegmentCodes ( j ); // classification code - update for next segment
1026 continue; // no splitting at this point, go to next one
1029 //:abv 28.05.02: OCC320 Sample_2: if maxtol = 1e-7, the vertex tolerance
1030 // is actually ignored - protect against new vertex on degenerated edge
1031 else if ( BRep_Tool::Degenerated(edge) && prevV.IsSame(lastV) ) {
1035 // classification code for current segment
1036 if ( j > start ) code = SegmentCodes ( j >1 ? j-1 : SegmentCodes.Length() );
1038 // if not adjusted, make new vertex
1040 B.MakeVertex ( V, currPnt.Transformed(myLoc.Transformation()), tolEdge );
1041 vertices.Append ( V );
1043 // else adjusted to end, fill all resting vertices
1044 else if ( ! doCut ) {
1045 for ( ; j < stop; j++ ) vertices.Append ( lastV );
1046 if ( ! splitted ) break; // no splitting at all
1049 else vertices.Append ( V );
1051 // When edge is about to be splitted, copy end vertices to protect
1052 // original shape from increasing tolerance after fixing SameParameter
1055 TopoDS_Shape emptyCopiedfV = prevV.EmptyCopied();
1056 TopoDS_Vertex fV = TopoDS::Vertex (emptyCopiedfV );
1057 Context()->Replace ( prevV, fV );
1059 if ( prevV.IsSame ( lastV ) ) {
1061 TopoDS_Shape tmpV = fV.Oriented ( lastV.Orientation() ) ;
1062 lV = TopoDS::Vertex (tmpV);
1066 TopoDS_Shape emptyCopied = lastV.EmptyCopied();
1067 lV = TopoDS::Vertex (emptyCopied);
1068 Context()->Replace ( lastV, lV );
1070 if ( V.IsSame ( lastV ) ) V = lV;
1071 else if ( V.IsSame ( prevV ) ) V = fV;
1076 // Splitting of the edge
1077 splitted = Standard_True;
1078 prevV.Orientation ( TopAbs_FORWARD );
1079 V.Orientation ( TopAbs_REVERSED );
1080 ShapeBuild_Edge sbe;
1081 TopoDS_Edge anInitEdge = edge;
1082 Standard_Boolean ismanifold = (edge.Orientation() == TopAbs_FORWARD ||
1083 edge.Orientation() == TopAbs_REVERSED);
1085 anInitEdge.Orientation(TopAbs_FORWARD);
1086 TopoDS_Edge newEdge = sbe.CopyReplaceVertices (anInitEdge, prevV, V );
1088 //addition internal vertices if they exists on edge
1089 Standard_Integer n =1;
1090 for( ; n <= aNMVertParams.Length(); n++) {
1091 Standard_Real apar = aNMVertParams.Value(n);
1092 TopoDS_Vertex aNMVert =TopoDS::Vertex(aNMVertices.Value(n));
1093 TopoDS_Vertex atmpV = TopoDS::Vertex(Context()->Apply(aNMVert));
1094 if(fabs(apar - prevPar) <= Precision::PConfusion()) {
1095 Context()->Replace(atmpV,prevV);
1096 aNMVertParams.Remove(n);
1097 aNMVertices.Remove(n);
1100 else if(fabs(apar - currPar) <= Precision::PConfusion()) {
1101 Context()->Replace(atmpV,V);
1102 aNMVertParams.Remove(n);
1103 aNMVertices.Remove(n);
1106 if(apar > prevPar && apar < currPar) {
1107 B.Add(newEdge,atmpV);
1108 aNMVertParams.Remove(n);
1109 aNMVertices.Remove(n);
1114 sbe.CopyPCurves ( newEdge, anInitEdge );
1116 Handle(ShapeAnalysis_TransferParameters) theTransferParamtool = GetTransferParamTool();
1117 theTransferParamtool->SetMaxTolerance(MaxTolerance());
1118 theTransferParamtool->Init(anInitEdge,myFace);
1119 theTransferParamtool->TransferRange(newEdge,prevPar,currPar,Standard_True);
1122 if(code == IOR_UNDEF) //tangential segment
1123 newEdge.Orientation(TopAbs_EXTERNAL);
1125 newEdge.Orientation(edge.Orientation());
1128 if(!sp && !BRep_Tool::Degenerated(newEdge))
1129 B.SameRange(newEdge, Standard_False);
1130 //pdn take into account 0 codes (if ext)
1131 if(code == 0 && wire.Orientation()==TopAbs_EXTERNAL){
1132 code = ( ( isCutByU == (j == 1) ) ? 1 : 2 );
1135 result.AddEdge ( 0, newEdge, iumin, iumax, ivmin, ivmax );
1136 DefinePatch ( result, code, isCutByU, cutIndex );
1138 // Changing prev parameters
1140 prevVTol = LimitTolerance( BRep_Tool::Tolerance ( V ) );
1141 prevVPnt = BRep_Tool::Pnt ( V );
1143 prevPnt2d = currPnt2d;
1148 // record replacement in context
1149 // NOTE: order of edges in the replacing wire corresponds to FORWARD orientation of the edge
1150 TopoDS_Wire resWire;
1151 B.MakeWire ( resWire );
1152 for ( Standard_Integer k=NbEdgesStart; k < result.NbEdges(); k++ ) {
1153 if ( edge.Orientation() == TopAbs_FORWARD || edge.Orientation() == TopAbs_INTERNAL)
1154 B.Add ( resWire, result.Edge(k+1) );
1155 else B.Add ( resWire, result.Edge(result.NbEdges()-k+NbEdgesStart) );
1157 Context()->Replace ( edge, resWire );
1160 if(anWireOrient == TopAbs_INTERNAL && code ==0) {
1161 ShapeBuild_Edge sbe;
1162 if(edge.Orientation() == TopAbs_INTERNAL)
1163 edge.Orientation(TopAbs_FORWARD);
1164 TopoDS_Edge e1 = sbe.Copy(edge,Standard_False);
1165 Handle(Geom2d_Curve) C2d2 = Handle(Geom2d_Curve)::DownCast(C2d->Copy());
1166 B.UpdateEdge(e1,C2d,C2d2,myFace,0.);
1167 e1.Orientation(TopAbs_EXTERNAL);
1168 Context()->Replace ( edge,e1);
1169 result.AddEdge ( 0,e1 , iumin, iumax, ivmin, ivmax );
1172 result.AddEdge ( 0, edge, iumin, iumax, ivmin, ivmax );
1173 if(code == 0 && wire.Orientation()==TopAbs_EXTERNAL){
1174 //pdn defining code for intersection of two isos
1175 code = ( ( isCutByU == ( Abs(firstPar-currPar) < Abs(lastPar-currPar) ) ) ? 2 : 1 );
1177 DefinePatch ( result, code, isCutByU, cutIndex );
1180 result.Orientation ( anWireOrient );
1184 //=======================================================================
1185 //function : SplitByLine
1187 //=======================================================================
1189 Standard_Boolean ShapeFix_ComposeShell::SplitByLine (ShapeFix_WireSegment &wire,
1190 const gp_Lin2d &line,
1191 const Standard_Boolean isCutByU,
1192 const Standard_Integer cutIndex,
1193 TColStd_SequenceOfReal &SplitLinePar,
1194 TColStd_SequenceOfInteger &SplitLineCode,
1195 TopTools_SequenceOfShape &SplitLineVertex)
1197 ShapeAnalysis_Edge sae;
1198 // prepare data on cutting line
1199 Handle(Geom2d_Line) jC2d = new Geom2d_Line ( line );
1200 Geom2dAdaptor_Curve jGAC(jC2d);
1202 TColStd_SequenceOfInteger IntEdgeInd; // index of intersecting edge
1203 TColStd_SequenceOfReal IntEdgePar; // parameter of intersection point on edge
1204 TColStd_SequenceOfReal IntLinePar; // parameter of intersection point on line
1206 Standard_Boolean isnonmanifold = (wire.Orientation() == TopAbs_INTERNAL);
1207 //gka correction for non-manifold vertices SAMTECH
1208 if(wire.IsVertex()) {
1209 Handle(ShapeAnalysis_Surface) aSurfTool = new ShapeAnalysis_Surface ( BRep_Tool::Surface (myFace) );
1210 TopoDS_Vertex aVert = wire.GetVertex();
1211 gp_Pnt aP3d = BRep_Tool::Pnt(aVert);
1212 gp_Pnt2d aP2d = aSurfTool->ValueOfUV(aP3d,Precision::Confusion());
1213 Standard_Real dev =0.;
1214 Standard_Integer code = PointLinePosition(aP2d,line,dev);
1215 if(code != IOR_UNDEF)
1216 return Standard_False;
1217 Standard_Real par = ParamPointOnLine (aP2d,line);
1218 SplitLinePar.Append ( par );
1219 //splitting codes for non-manifold topology should be tangential
1220 SplitLineCode.Append (ITP_TANG); //ITP_INTER);
1221 TopoDS_Vertex aVertNew;
1223 aB.MakeVertex(aVertNew,aP3d,BRep_Tool::Tolerance(aVert));
1224 aVertNew.Orientation(TopAbs_FORWARD);
1225 Context()->Replace(aVert,aVertNew);
1226 SplitLineVertex.Append (aVertNew);
1227 wire.SetVertex(aVertNew);
1228 return Standard_True;
1230 const Handle(ShapeExtend_WireData) sewd = wire.WireData();
1232 Standard_Integer nbe = sewd->NbEdges();
1234 //:abv 31.10.01: for closed mode
1235 Standard_Integer closedDir = 0;
1236 if ( myClosedMode ) {
1237 if ( myUClosed && Abs ( line.Direction().X() ) < ::Precision::PConfusion() )
1239 else if ( myVClosed && Abs ( line.Direction().Y() ) < ::Precision::PConfusion() )
1242 Standard_Real halfPeriod = 0.5 * ( closedDir ? closedDir <0 ? myUPeriod : myVPeriod : 0. );
1244 //============================================
1245 // make intersections and collect all data on intersection points
1246 Standard_Integer firstCode=0, prevCode=0;
1247 gp_Pnt2d firstPos, prevPos;
1248 Standard_Real firstDev=0., prevDev=0.;
1249 for (Standard_Integer iedge = 1; iedge <= nbe; iedge++) {
1250 TopoDS_Edge E= sewd->Edge ( iedge );
1251 Standard_Boolean isreversed = ( E.Orientation() == TopAbs_REVERSED );
1254 Handle(Geom2d_Curve) c2d;
1255 if ( ! sae.PCurve ( E, myFace, c2d, f, l, Standard_False ) ) continue;
1258 gp_Pnt2d posf = c2d->Value(f), posl = c2d->Value(l);
1259 gp_XY pppf = posf.XY(), pppl = posl.XY();
1261 // In case of ClosedMode, adjust curve and end points to period on closed surface
1262 //:abv 16.10.01: Ziegler_CADDY01.sat -18: if pcurve is longer than period,
1263 // ensure processing of all intersections
1264 Standard_Integer nbIter = 1;
1265 gp_Vec2d shiftNext(0.,0.);
1266 if ( myClosedMode ) {
1267 // get bounding box of pcurve
1268 ShapeAnalysis_Curve sac;
1270 const Standard_Integer aNbPoints = 41;
1271 sac.FillBndBox ( c2d, f, l, aNbPoints, Standard_True, box );
1272 Standard_Real umin, vmin, umax, vmax;
1273 box.Get ( umin, vmin, umax, vmax );
1275 // compute shifts and adjust points adjust
1276 if ( closedDir < 0 ) {
1277 Standard_Real x = line.Location().X();
1278 Standard_Real shift = ShapeAnalysis::AdjustToPeriod ( umin, x-myUPeriod, x );
1279 if ( shift != 0. ) {
1280 c2d = Handle(Geom2d_Curve)::DownCast ( c2d->Copy() );
1281 gp_Vec2d V ( shift, 0. );
1282 c2d->Translate ( V );
1283 pppf.SetX ( pppf.X() + shift );
1284 pppl.SetX ( pppl.X() + shift );
1286 shiftNext.SetX ( -myUPeriod );
1287 nbIter = (Standard_Integer)( 1 + Abs ( umax + shift - x ) / myUPeriod );
1288 shift = ShapeAnalysis::AdjustByPeriod ( posf.X(), x, myUPeriod );
1289 posf.SetX ( posf.X() + shift );
1290 shift = ShapeAnalysis::AdjustByPeriod ( posl.X(), x, myUPeriod );
1291 posl.SetX ( posl.X() + shift );
1293 else if ( closedDir > 0 ) {
1294 Standard_Real y = line.Location().Y();
1295 Standard_Real shift = ShapeAnalysis::AdjustToPeriod ( vmin, y-myVPeriod, y );
1296 if ( shift != 0. ) {
1297 c2d = Handle(Geom2d_Curve)::DownCast ( c2d->Copy() );
1298 gp_Vec2d V ( 0., shift );
1299 c2d->Translate ( V );
1300 pppf.SetY ( pppf.Y() + shift );
1301 pppl.SetY ( pppl.Y() + shift );
1303 shiftNext.SetY ( -myVPeriod );
1304 nbIter = (Standard_Integer)( 1 + Abs ( umax + shift - y ) / myVPeriod );
1305 shift = ShapeAnalysis::AdjustByPeriod ( posf.Y(), y, myVPeriod );
1306 posf.SetY ( posf.Y() + shift );
1307 shift = ShapeAnalysis::AdjustByPeriod ( posl.Y(), y, myVPeriod );
1308 posl.SetY ( posl.Y() + shift );
1312 // detect intersections at junction of two edges
1313 gp_Pnt2d pos = ( isreversed ? posl : posf );
1315 Standard_Integer code = PointLinePosition ( pos, line, dev );
1316 if ( iedge ==1 ) { firstCode = code; firstPos = pos; firstDev = dev; }
1317 else if ( code == IOR_UNDEF || code != prevCode ) {
1318 if ( ! closedDir || Abs ( dev - prevDev ) < halfPeriod ) {
1319 IntLinePar.Append ( ParamPointsOnLine ( pos, prevPos, line ) ); // !! - maybe compute exactly ?
1320 IntEdgePar.Append ( isreversed ? l : f );
1321 IntEdgeInd.Append ( iedge );
1325 // fill data on end point (for next edge)
1326 pos = ( isreversed ? posf : posl );
1327 prevCode = PointLinePosition ( pos, line, prevDev );
1330 // cycle with shift in order to track all possible intersections
1331 for ( Standard_Integer iter=1; iter <= nbIter; iter++ ) {
1332 // data for intersection
1333 IntRes2d_Domain iDom ( pppf, f, TOLINT, pppl, l, TOLINT );
1334 Geom2dAdaptor_Curve iGAC(c2d);
1337 Geom2dInt_GInter Inter;
1338 Inter.Perform ( jGAC, /*jDom,*/ iGAC, iDom, TOLINT, TOLINT );
1340 // Fill arrays with new intersection points
1341 if ( Inter.IsDone() ) {
1343 for ( i = 1; i <= Inter.NbPoints(); i++ ) {
1344 IntRes2d_IntersectionPoint IP = Inter.Point (i);
1345 IntLinePar.Append ( IP.ParamOnFirst() );
1346 IntEdgePar.Append ( IP.ParamOnSecond() );
1348 for ( i = 1; i <= Inter.NbSegments(); i++ ) {
1349 IntRes2d_IntersectionSegment IS = Inter.Segment (i);
1350 if ( IS.HasFirstPoint() ) {
1351 IntRes2d_IntersectionPoint IP = IS.FirstPoint();
1352 IntLinePar.Append ( IP.ParamOnFirst() );
1353 IntEdgePar.Append ( IP.ParamOnSecond() );
1355 if ( IS.HasLastPoint() ) {
1356 IntRes2d_IntersectionPoint IP = IS.LastPoint();
1357 IntLinePar.Append ( IP.ParamOnFirst() );
1358 IntEdgePar.Append ( IP.ParamOnSecond() );
1362 if ( iter < nbIter ) {
1363 if ( iter == 1 ) c2d = Handle(Geom2d_Curve)::DownCast ( c2d->Copy() );
1364 pppf += shiftNext.XY();
1365 pppl += shiftNext.XY();
1366 c2d->Translate ( shiftNext );
1370 Standard_Integer start = IntEdgeInd.Length() + 1; // first of the new points
1372 // Move all points into range [f,l] (intersector sometimes gives params out of range)
1374 for ( i = start; i <= IntEdgePar.Length(); i++ ) {
1375 if ( IntEdgePar(i) < f ) IntEdgePar.SetValue ( i, f );
1376 else if ( IntEdgePar(i) > l ) IntEdgePar.SetValue ( i, l );
1379 // Sort by parameter on edge
1380 for ( i = IntEdgePar.Length(); i > start; i-- )
1381 for ( Standard_Integer j = start; j < i; j++ ) {
1382 if ( isreversed == ( IntEdgePar(j+1) < IntEdgePar(j) ) ) continue;
1383 IntLinePar.Exchange ( j, j+1 );
1384 IntEdgePar.Exchange ( j, j+1 );
1388 for ( i = start; i <= IntEdgePar.Length(); i++ )
1389 IntEdgeInd.Append ( iedge );
1391 // Detect intersection at closing point
1392 // Only wires which are not EXTERNAL are considered (as closed)
1393 if ( iedge == nbe && wire.Orientation() != TopAbs_EXTERNAL &&
1394 wire.Orientation() != TopAbs_INTERNAL &&
1395 ( prevCode == IOR_UNDEF || prevCode != firstCode ) ) {
1396 if ( ! closedDir || Abs ( firstDev - prevDev ) < halfPeriod ) {
1397 IntLinePar.Append ( ParamPointsOnLine ( pos, firstPos, line ) );
1398 IntEdgePar.Append ( isreversed ? f : l );
1399 IntEdgeInd.Append ( iedge );
1404 if ( IntEdgePar.Length() <1 ) {
1405 //pdn Defining position of wire. There is no intersection, so by any point.
1406 //DefinePatchForWire ( wire, firstCode, isCutByU, cutIndex );
1407 return Standard_False; //pdn ??
1410 //======================================
1411 // Fill sequence of transition codes for intersection points
1412 TColStd_SequenceOfInteger IntCode; // parameter of intersection point on line
1413 TColStd_SequenceOfInteger SegmentCodes; // classification codes for segments of wire
1415 // remove duplicated points to ensure correct results of ComputeCode
1416 Standard_Integer i, j = IntEdgePar.Length();
1417 if ( myClosedMode && j >1 ) {
1418 for ( i = 1; i <= IntEdgePar.Length(); ) {
1419 if ( i == j ) break;
1420 if ( IntEdgeInd(i) == IntEdgeInd(j) &&
1421 Abs ( IntEdgePar(i) - IntEdgePar(j) ) < ::Precision::PConfusion() ) {
1422 IntLinePar.Remove(i);
1423 IntEdgePar.Remove(i);
1424 IntEdgeInd.Remove(i);
1428 else if ( nbe ==1 || IntEdgeInd(i) == (IntEdgeInd(j)%nbe)+1 ) {
1429 TopoDS_Edge E1 = sewd->Edge ( IntEdgeInd(j) );
1430 TopoDS_Edge E2 = sewd->Edge ( IntEdgeInd(i) );
1431 Standard_Real a1, b1, a2, b2;
1432 BRep_Tool::Range ( E1, myFace, a1, b1 );
1433 BRep_Tool::Range ( E2, myFace, a2, b2 );
1434 if ( Abs ( IntEdgePar(j) - ( E1.Orientation() == TopAbs_FORWARD ? b1 : a1 ) ) < ::Precision::PConfusion() &&
1435 Abs ( IntEdgePar(i) - ( E2.Orientation() == TopAbs_FORWARD ? a2 : b2 ) ) < ::Precision::PConfusion() ) {
1436 IntLinePar.Remove(i);
1437 IntEdgePar.Remove(i);
1438 IntEdgeInd.Remove(i);
1446 //sequence of real codes for each segment
1447 TColStd_SequenceOfInteger aNewSegCodes;
1448 // Compute segment codes (left side of line, right or tangential)
1449 for ( i=1; i <= IntEdgePar.Length(); i++ ) {
1450 j = ( i < IntEdgePar.Length() ? i + 1 : 1 );
1451 Standard_Integer code = ComputeCode ( sewd, line, IntEdgeInd(i), IntEdgeInd(j),
1452 IntEdgePar(i), IntEdgePar(j),isnonmanifold );
1453 SegmentCodes.Append ( code );
1456 // for EXTERNAL wire, i.e. another joint line, every point is double intersection
1457 if ( wire.Orientation() == TopAbs_EXTERNAL ) {
1458 for ( i=1; i <= IntEdgePar.Length(); i++ )
1460 IntCode.Append ( ITP_TANG | IOR_BOTH );
1461 aNewSegCodes.Append(SegmentCodes(i));
1464 // For real (closed) wire, analyze tangencies
1466 if(wire.Orientation() != TopAbs_INTERNAL) {
1467 // Two consecutive tangential segments are considered as one, merge them.
1468 for ( i=1; i <= IntEdgePar.Length(); i++ ) {
1469 j = ( i > 1 ? i-1 : IntEdgePar.Length() );
1471 int k = ( i < IntEdgePar.Length() ? i + 1 : 1 ); // [ACIS22539]
1473 if ( SegmentCodes(j) == IOR_UNDEF &&
1474 SegmentCodes(i) == IOR_UNDEF ) {
1476 // Very specific case when the constructed seam edge
1477 // overlaps with spur edge [ACIS22539]
1478 if (myClosedMode && (IntLinePar(i) - IntLinePar(j)) * (IntLinePar(k) - IntLinePar(i)) <= 0. )
1481 IntEdgeInd.Remove(i);
1482 IntEdgePar.Remove(i);
1483 IntLinePar.Remove(i);
1484 SegmentCodes.Remove(i);
1489 //pdn exit if all split points removed
1490 if ( IntEdgePar.Length() <1 ) {
1491 return Standard_False; //pdn ??
1494 // Analyze type of intersection point and encode it
1495 // Three kinds of points (ITP): clear intersection, tangency in-point,
1496 // beginning and end of tangential segment.
1497 // Orientation (IOR) tells on which side of line edge crosses it
1498 j = IntEdgePar.Length();
1500 for ( i=1; i <= IntEdgePar.Length(); j = i++ ) {
1501 Standard_Integer codej = SegmentCodes(j);
1502 Standard_Integer codei = SegmentCodes(i);
1503 if ( myClosedMode ) {
1504 if ( ( codej & IOR_BOTH ) == IOR_BOTH ) //IOR_LEFT : IOR_RIGHT
1505 codej = ( codej & IOR_POS ? IOR_RIGHT : IOR_LEFT );
1506 if ( ( codei & IOR_BOTH ) == IOR_BOTH ) //IOR_RIGHT : IOR_LEFT
1507 codei = ( codei & IOR_POS ? IOR_LEFT : IOR_RIGHT );
1508 aNewSegCodes.Append ( codei );
1509 if(IntEdgeInd(i) == IntEdgeInd(j))
1510 aNewSegCodes.Append ( codej );
1514 aNewSegCodes.Append ( codei );
1515 Standard_Integer ipcode = ( codej | codei );
1516 if ( codej == IOR_UNDEF ) { // previous segment was tangency
1517 if ( IntLinePar(i) > IntLinePar (j) )
1518 ipcode |= ITP_ENDSEG; // end of segment
1519 else ipcode |= ITP_BEGSEG; // beginning of segment
1521 else if ( codei == IOR_UNDEF ) { // current segment is tangency
1522 if ( IntLinePar ( i < IntLinePar.Length() ? i+1 : 1 ) > IntLinePar(i) )
1523 ipcode |= ITP_BEGSEG; // beginning of segment
1524 else ipcode |= ITP_ENDSEG; // end of segment
1526 //internal wire can be only tangent
1527 else if ( i == j ) ipcode |= ( ( ipcode & IOR_BOTH ) == IOR_BOTH && !isnonmanifold ? ITP_INTER : ITP_TANG );
1528 else if ( codei == codej || isnonmanifold) ipcode |= ITP_TANG; // tangency in-point
1529 else ipcode |= ITP_INTER; // standard crossing
1530 IntCode.Append ( ipcode );
1534 //=======================================
1535 // Split edges in the wire by intersection points and fill vertices array
1536 TopTools_SequenceOfShape IntVertices;
1537 wire = SplitWire ( wire, IntEdgeInd, IntEdgePar, IntVertices,
1538 aNewSegCodes, isCutByU, cutIndex );
1540 // add all data to input arrays
1541 for ( i=1; i <= IntLinePar.Length(); i++ ) {
1542 SplitLinePar.Append ( IntLinePar(i) );
1543 SplitLineCode.Append ( IntCode(i) );
1544 SplitLineVertex.Append ( IntVertices(i) );
1547 return Standard_True;
1550 //=======================================================================
1551 //function : SplitByLine
1553 //=======================================================================
1555 void ShapeFix_ComposeShell::SplitByLine (ShapeFix_SequenceOfWireSegment &wires,
1556 const gp_Lin2d &line,
1557 const Standard_Boolean isCutByU,
1558 const Standard_Integer cutIndex)
1560 TColStd_SequenceOfReal SplitLinePar;
1561 TColStd_SequenceOfInteger SplitLineCode;
1562 TopTools_SequenceOfShape SplitLineVertex;
1564 // split wires one by one, collecting data on intersection points
1565 Standard_Integer i; // svv #1
1566 for ( i=1; i <= wires.Length(); i++ ) {
1567 SplitByLine ( wires(i), line, isCutByU, cutIndex,
1568 SplitLinePar, SplitLineCode, SplitLineVertex );
1571 // sort intersection points along parameter on cutting line
1572 for ( i = SplitLinePar.Length(); i >1; i-- )
1573 for ( Standard_Integer j=1; j < i; j++ ) {
1574 if ( SplitLinePar(j) > SplitLinePar(j+1) ) {
1575 SplitLinePar.Exchange ( j, j+1 );
1576 SplitLineCode.Exchange ( j, j+1 );
1577 SplitLineVertex.Exchange ( j, j+1 );
1581 // merge null-length tangential segments into one-point tangencies or intersections
1582 for ( i = 1; i < SplitLinePar.Length(); i++ ) {
1583 if ( Abs ( SplitLinePar(i+1) - SplitLinePar(i) ) > ::Precision::PConfusion() && !SplitLineVertex(i).IsSame(SplitLineVertex(i+1)) ) continue;
1584 if ( ( SplitLineCode(i) & ITP_ENDSEG &&
1585 SplitLineCode(i+1) & ITP_BEGSEG ) ||
1586 ( SplitLineCode(i) & ITP_BEGSEG &&
1587 SplitLineCode(i+1) & ITP_ENDSEG ) ) {
1588 Standard_Integer code = ( SplitLineCode(i) | SplitLineCode(i+1) ) & IOR_BOTH;
1589 SplitLineCode.SetValue ( i, code | ( code == IOR_BOTH ? ITP_INTER : ITP_TANG ) );
1590 SplitLinePar.Remove(i+1);
1591 SplitLineCode.Remove(i+1);
1592 SplitLineVertex.Remove(i+1);
1596 // go along line, split it by intersection points and create edges
1597 // (only for internal parts, in particular not for tangential segments)
1599 Standard_Integer parity = 0; // 0 - out, 1 - in
1600 Standard_Integer halfparity = 0; // left/right for tangential segments
1601 Standard_Integer tanglevel = 0; // tangency nesting level
1602 for ( i = 1; i <= SplitLinePar.Length(); i++ ) {
1603 Standard_Integer code = SplitLineCode(i);
1604 Standard_Boolean interior = ( !tanglevel && parity % 2 ); // create an edge
1605 if ( code & ITP_INTER ) { // crossing
1608 else if ( code & ITP_BEGSEG ) { // beginning of tangential segment
1610 if ( ! halfparity ) halfparity = ( code & IOR_BOTH );
1611 else if ( halfparity != ( code & IOR_BOTH ) ) parity++;
1613 else if ( code & ITP_ENDSEG ) { // end of tangential segment
1615 if ( ! halfparity ) halfparity = ( code & IOR_BOTH );
1616 else if ( halfparity != ( code & IOR_BOTH ) ) parity++;
1618 if ( tanglevel <0 ) {
1619 // myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL4 );
1621 std::cout << "Warning: ShapeFix_ComposeShell::SplitByLine: tangency level <0 !" << std::endl;
1624 if ( ! interior ) continue;
1626 // apply context to vertices (to perform replacing/merging vertices)
1628 TopoDS_Shape tmpV1 = Context()->Apply ( SplitLineVertex(i-1) );
1629 TopoDS_Shape tmpV2 = Context()->Apply ( SplitLineVertex(i) );
1630 TopoDS_Vertex V1 = TopoDS::Vertex ( tmpV1 );
1631 TopoDS_Vertex V2 = TopoDS::Vertex ( tmpV2 );
1632 // protection against creating null-length edges
1633 if ( SplitLinePar(i) - SplitLinePar(i-1) < ::Precision::PConfusion() ) {
1636 std::cout << "Info: ShapeFix_ComposeShell::SplitByLine: Short segment ignored" << std::endl;
1638 if ( ! V1.IsSame ( V2 ) ) { // merge coincident vertices
1639 ShapeBuild_Vertex sbv;
1640 TopoDS_Vertex V = sbv.CombineVertex ( V1, V2 );
1641 Context()->Replace ( V1, V.Oriented ( V1.Orientation() ) );
1642 Context()->Replace ( V2, V.Oriented ( V2.Orientation() ) );
1645 std::cout << "Info: ShapeFix_ComposeShell::SplitByLine: Coincided vertices merged" << std::endl;
1651 // create an edge (without 3d curve), put it in wire segment and add to sequence
1652 // NOTE: i here is always >1
1654 B.MakeEdge ( edge );
1655 V1.Orientation ( TopAbs_FORWARD );
1656 V2.Orientation ( TopAbs_REVERSED );
1659 Handle(Geom2d_Line) Lin1 = new Geom2d_Line ( line );
1660 Handle(Geom2d_Line) Lin2 = new Geom2d_Line ( line );
1661 B.UpdateEdge ( edge, Lin1, Lin2, myFace, ::Precision::Confusion() );
1662 B.Range ( edge, myFace, SplitLinePar(i-1), SplitLinePar(i) );
1664 Handle(ShapeExtend_WireData) sbwd = new ShapeExtend_WireData;
1666 ShapeFix_WireSegment seg ( sbwd, TopAbs_EXTERNAL );
1668 // set patch indices
1669 DefinePatch ( seg, IOR_UNDEF, isCutByU, cutIndex );
1671 Standard_Real shiftU =
1672 (myClosedMode && myUClosed ? ShapeAnalysis::AdjustToPeriod(SplitLinePar(i-1) -TOLINT, myGrid->UJointValue(1), myGrid->UJointValue(2)) : 0.);
1673 Standard_Real aPar = SplitLinePar(i-1) + shiftU;
1675 seg.DefineIUMin ( 1, GetPatchIndex ( aPar+::Precision::PConfusion(), myGrid->UJointValues(), myUClosed ) );
1676 seg.DefineIUMax ( 1, GetPatchIndex ( aPar-::Precision::PConfusion(), myGrid->UJointValues(), myUClosed ) + 1 );
1679 Standard_Real shiftV = (myClosedMode && myVClosed ? ShapeAnalysis::AdjustToPeriod(SplitLinePar(i-1) -TOLINT, myGrid->VJointValue(1), myGrid->VJointValue(2)) : 0.);
1680 Standard_Real aPar = SplitLinePar(i-1) + shiftV;
1681 seg.DefineIVMin ( 1, GetPatchIndex ( aPar+::Precision::PConfusion(), myGrid->VJointValues(), myVClosed ) );
1682 seg.DefineIVMax ( 1, GetPatchIndex ( aPar-::Precision::PConfusion(), myGrid->VJointValues(), myVClosed ) + 1 );
1684 wires.Append ( seg );
1687 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL4 );
1689 std::cout << "Error: ShapeFix_ComposeShell::SplitByLine: parity error" << std::endl;
1693 // Apply context to all wires to perform all recorded replacements/merging
1694 for ( i=1; i <= wires.Length(); i++ ) {
1695 for ( Standard_Integer j=1; j <= wires(i).NbEdges(); )
1696 j += ApplyContext ( wires(i), j, Context() );
1700 //=======================================================================
1701 //function : SplitByGrid
1703 //=======================================================================
1705 void ShapeFix_ComposeShell::SplitByGrid (ShapeFix_SequenceOfWireSegment &seqw)
1707 // process splitting by U- anv V-seams (i.e. U=const and V=const curves)
1708 // closed composite surface is processed as periodic
1709 Standard_Real Uf,Ul,Vf,Vl;
1710 BRepTools::UVBounds(myFace,Uf,Ul,Vf,Vl);
1711 Standard_Real Umin,Umax,Vmin,Vmax;
1712 myGrid->Bounds(Umin,Umax,Vmin,Vmax);
1714 //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)
1715 Standard_Real pprec = TOLINT;//::Precision::PConfusion();
1716 Standard_Integer i = 1;
1719 //for closed mode when only one patch exist and location of the splitting line is coinsident with first joint value
1720 //Therefore in this case it is necessary to move all wire segments in the range of the patch between first and last joint
1721 //values. Then all wire segments are lie between -period and period in order to have valid split ranges after splitting.
1722 //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).
1723 for ( i=1; i <= seqw.Length(); i++ )
1725 ShapeFix_WireSegment &wire = seqw(i);
1727 TopoDS_Shape atmpF = myFace.EmptyCopied();
1729 atmpF.Orientation(TopAbs_FORWARD);
1730 aB.Add(atmpF, wire.WireData()->Wire());
1731 Standard_Real Uf1,Ul1,Vf1,Vl1;
1732 ShapeAnalysis::GetFaceUVBounds(TopoDS::Face(atmpF),Uf1,Ul1,Vf1,Vl1);
1734 //for closed mode it is necessary to move wire segment in the interval defined by first and last grid UV values
1735 Standard_Real shiftU = (myClosedMode && myUClosed ? ShapeAnalysis::AdjustToPeriod(Ul1 -pprec, myGrid->UJointValue(1), myGrid->UJointValue(2)) : 0.);
1736 Standard_Real shiftV = (myClosedMode && myVClosed ? ShapeAnalysis::AdjustToPeriod(Vl1 -pprec, myGrid->VJointValue(1), myGrid->VJointValue(2)) : 0.);
1741 // limit patch indices to be in range of grid (extended for periodic) (0, 2)
1742 //in same cases for example trj4_pm2-ug-203.stp (entity #8024) wire in 2D space has length greater then period
1743 Standard_Integer iumin = Max(0,GetPatchIndex ( Uf1+pprec, myGrid->UJointValues(), myUClosed ));
1744 Standard_Integer iumax = GetPatchIndex ( Ul1-pprec, myGrid->UJointValues(), myUClosed ) + 1;
1746 for ( Standard_Integer j=1; j <= wire.NbEdges(); j++ ) {
1747 wire.DefineIUMin ( j, iumin );
1748 wire.DefineIUMax ( j, iumax );
1751 Standard_Integer ivmin = Max(0,GetPatchIndex ( Vf1+pprec, myGrid->VJointValues(), myVClosed ));
1752 Standard_Integer ivmax = GetPatchIndex ( Vl1-pprec, myGrid->VJointValues(), myVClosed ) + 1;
1754 for ( Standard_Integer j=1; j <= wire.NbEdges(); j++ ) {
1755 wire.DefineIVMin ( j, ivmin );
1756 wire.DefineIVMax ( j, ivmax );
1762 // limit patch indices to be in range of grid (extended for periodic)
1763 Standard_Integer iumin = GetPatchIndex ( Uf+pprec, myGrid->UJointValues(), myUClosed );
1764 Standard_Integer iumax = GetPatchIndex ( Ul-pprec, myGrid->UJointValues(), myUClosed ) + 1;
1765 for ( i=1; i <= seqw.Length(); i++ ) {
1766 ShapeFix_WireSegment &wire = seqw(i);
1767 for ( Standard_Integer j=1; j <= wire.NbEdges(); j++ ) {
1768 wire.DefineIUMin ( j, iumin );
1769 wire.DefineIUMax ( j, iumax );
1772 Standard_Integer ivmin = GetPatchIndex ( Vf+pprec, myGrid->VJointValues(), myVClosed );
1773 Standard_Integer ivmax = GetPatchIndex ( Vl-pprec, myGrid->VJointValues(), myVClosed ) + 1;
1774 for ( i=1; i <= seqw.Length(); i++ ) {
1775 ShapeFix_WireSegment &wire = seqw(i);
1776 for ( Standard_Integer j=1; j <= wire.NbEdges(); j++ ) {
1777 wire.DefineIVMin ( j, ivmin );
1778 wire.DefineIVMax ( j, ivmax );
1784 for ( i = ( myUClosed ? 1 : 2 ); i <= myGrid->NbUPatches(); i++ ) {
1785 gp_Pnt2d pos ( myGrid->UJointValue(i), 0. ); // 0. - for infinite ranges: myGrid->VJointValue(1) ;
1786 gp_Lin2d line ( pos, gp_Dir2d ( 0., 1. ) );
1787 if ( ! myClosedMode && myUClosed ) {
1788 Standard_Real period = Umax - Umin;
1789 Standard_Real X = pos.X();
1790 Standard_Real sh = ShapeAnalysis::AdjustToPeriod(X,Uf, Uf+period);
1791 for( ; X+sh <= Ul+pprec; sh += period ) {
1792 gp_Lin2d ln = line.Translated(gp_Vec2d(sh,0));
1793 Standard_Integer cutIndex = GetPatchIndex ( X+sh+pprec, myGrid->UJointValues(), myUClosed );
1794 SplitByLine ( seqw, ln, Standard_True, cutIndex );
1798 SplitByLine ( seqw, line, Standard_True, i );
1802 for ( i = ( myVClosed ? 1 : 2 ); i <= myGrid->NbVPatches(); i++ ) {
1803 gp_Pnt2d pos ( 0., myGrid->VJointValue(i) );
1804 gp_Lin2d line ( pos, gp_Dir2d ( 1., 0. ) );
1805 if ( ! myClosedMode && myVClosed ) {
1806 Standard_Real period = Vmax - Vmin;
1807 Standard_Real Y = pos.Y();
1808 Standard_Real sh = ShapeAnalysis::AdjustToPeriod(Y,Vf, Vf+period);
1809 for( ; Y+sh <= Vl+pprec; sh += period) {
1810 gp_Lin2d ln = line.Translated(gp_Vec2d(0,sh));
1811 Standard_Integer cutIndex = GetPatchIndex ( Y+sh+pprec, myGrid->VJointValues(), myVClosed );
1812 SplitByLine ( seqw, ln, Standard_False, cutIndex );
1816 SplitByLine ( seqw, line, Standard_False, i );
1820 //=======================================================================
1821 //function : BreakWires
1823 //=======================================================================
1825 void ShapeFix_ComposeShell::BreakWires (ShapeFix_SequenceOfWireSegment &seqw)
1827 // split all the wires by vertices
1828 TopTools_MapOfShape splitVertices;
1829 ShapeAnalysis_Edge sae;
1831 // first collect splitting vertices
1832 Standard_Integer i; // svv #1
1833 for ( i=1; i <= seqw.Length(); i++ ) {
1834 TopAbs_Orientation ori_wire = seqw(i).Orientation();
1835 if ( ori_wire != TopAbs_EXTERNAL &&
1836 ori_wire != TopAbs_INTERNAL) continue;
1838 Handle(ShapeExtend_WireData) sbwd = seqw(i).WireData();
1839 for ( Standard_Integer j=1; j <= sbwd->NbEdges(); j++ ) {
1840 TopoDS_Edge edge = sbwd->Edge ( j );
1841 TopAbs_Orientation ori_edge = (ori_wire == TopAbs_EXTERNAL ? ori_wire : edge.Orientation());
1842 if(ori_edge == TopAbs_EXTERNAL) {
1843 splitVertices.Add ( sae.FirstVertex ( edge ) );
1844 splitVertices.Add ( sae.LastVertex ( edge ) );
1849 // and then split each vire
1850 // Here each wire is supposed to be connected (while probably not closed)
1851 for ( i=1; i <= seqw.Length(); i++ ) {
1852 TopAbs_Orientation ori = seqw(i).Orientation();
1853 ShapeFix_WireSegment wire = seqw(i);
1856 Handle(ShapeExtend_WireData) sbwd = wire.WireData();
1858 // find first vertex for split
1859 Standard_Integer j; // svv #1
1860 for ( j=1; j <= sbwd->NbEdges(); j++ ) {
1861 TopoDS_Vertex V = sae.FirstVertex ( sbwd->Edge(j) );
1862 if ( splitVertices.Contains ( V ) ) break;
1864 if ( j > sbwd->NbEdges() ) continue; // splitting not needed
1866 // if first split of closed edge is not its start, make permutation
1867 Standard_Integer shift = 0;
1868 if ( j >1 && ! myClosedMode && wire.IsClosed() ) {
1869 TopoDS_Vertex V = sae.FirstVertex ( sbwd->Edge(1) );
1870 if ( ! splitVertices.Contains ( V ) )
1872 // wire.SetLast ( j-1 );
1875 // perform splitting
1876 Standard_Integer nbnew = 0;
1877 ShapeFix_WireSegment newwire;
1878 TopAbs_Orientation curOri = ori;
1879 for ( Standard_Integer ind=1; ind <= sbwd->NbEdges(); ind++ ) {
1880 j = 1 + ( ind - 1 + shift ) % sbwd->NbEdges();
1881 TopoDS_Edge edge = sbwd->Edge(j);
1882 TopoDS_Vertex V = sae.FirstVertex ( edge );
1883 if ( ind==1 || splitVertices.Contains ( V ) ) {
1884 if ( newwire.NbEdges() ) {
1885 newwire.Orientation ( curOri );
1886 // ShapeFix_WireSegment seg ( newwire, ori );
1887 seqw.InsertBefore ( i++, newwire );
1893 Standard_Integer iumin, iumax, ivmin, ivmax;
1894 wire.GetPatchIndex ( j, iumin, iumax, ivmin, ivmax );
1895 if(ori == TopAbs_INTERNAL && edge.Orientation() == TopAbs_EXTERNAL ) {
1896 curOri = TopAbs_EXTERNAL;
1897 edge.Orientation(TopAbs_FORWARD);
1900 newwire.AddEdge ( 0, edge, iumin, iumax, ivmin, ivmax );
1903 newwire.Orientation ( curOri );
1904 // ShapeFix_WireSegment seg ( newwire, ori );
1905 seqw.SetValue ( i, newwire );
1910 //=======================================================================
1911 //function : IsShortSegment
1912 //purpose : auxilary
1913 //=======================================================================
1914 // BUC60035 2053: check if wire segment is very short (in order not to skip it)
1916 // 1 - short even in 2d (to be taken always)
1917 // -1 - short in 3d but not in 2d (to be checked after algo and atteching to
1918 // another wire if alone)
1919 static Standard_Integer IsShortSegment (const ShapeFix_WireSegment &seg,
1920 const TopoDS_Face myFace,
1921 const Handle(Geom_Surface)& myGrid,
1922 const TopLoc_Location &myLoc,
1923 const Standard_Real UResolution,
1924 const Standard_Real VResolution)
1926 TopoDS_Vertex Vf = seg.FirstVertex();
1927 if ( ! Vf.IsSame ( seg.LastVertex() ) ) return 0;
1929 gp_Pnt pnt = BRep_Tool::Pnt(Vf);
1930 Standard_Real tol = BRep_Tool::Tolerance(Vf);
1931 Standard_Real tol2 = tol*tol;
1933 Standard_Integer code = 1;
1934 ShapeAnalysis_Edge sae;
1935 Handle(ShapeExtend_WireData) sbwd = seg.WireData();
1936 for ( Standard_Integer i=1; i <= sbwd->NbEdges(); i++ ) {
1937 TopoDS_Edge edge = sbwd->Edge ( i );
1938 if ( ! Vf.IsSame ( sae.LastVertex ( edge ) ) ) return 0;
1939 Handle(Geom2d_Curve) c2d;
1941 if ( ! sae.PCurve ( edge, myFace, c2d, f, l ) ) continue;
1944 gp_Pnt2d endPnt = c2d->Value(l);
1945 gp_Pnt2d midPnt = c2d->Value((f+l)/2);
1946 if ( ! IsCoincided ( endPnt, midPnt, UResolution, VResolution, tol ) ) code = -1;
1949 gp_Pnt midPnt3d = myGrid->Value(midPnt.X(),midPnt.Y());
1950 if ( ! myLoc.IsIdentity() ) midPnt3d.Transform ( myLoc.Transformation() );
1951 if ( midPnt3d.SquareDistance(pnt) > tol2) return 0;
1956 //=======================================================================
1957 //function : IsSamePatch
1958 //purpose : auxilary
1959 //=======================================================================
1960 static Standard_Boolean IsSamePatch (const ShapeFix_WireSegment wire,
1961 const Standard_Integer NU,
1962 const Standard_Integer NV,
1963 Standard_Integer &iumin,
1964 Standard_Integer &iumax,
1965 Standard_Integer &ivmin,
1966 Standard_Integer &ivmax,
1967 const Standard_Boolean extend=Standard_False)
1969 // get patch indices for current segment
1970 Standard_Integer jumin, jumax, jvmin, jvmax;
1971 wire.GetPatchIndex ( 1, jumin, jumax, jvmin, jvmax );
1973 // shift to the same period
1974 Standard_Integer du=0, dv=0;
1975 if ( jumin - iumin > NU ) du =-( jumin - iumin ) / NU;
1976 else if ( iumin - jumin > NU ) du = ( iumin - jumin ) / NU;
1977 if ( jvmin - ivmin > NV ) dv =-( jvmin - ivmin ) / NV;
1978 else if ( ivmin - jvmin > NV ) dv = ( ivmin - jvmin ) / NV;
1979 if ( du ) { jumin += du * NU; jumax += du * NU; }
1980 if ( dv ) { jvmin += dv * NV; jvmax += dv * NV; }
1982 // compute common (extended) indices
1983 Standard_Integer iun = Min ( iumin, jumin );
1984 Standard_Integer iux = Max ( iumax, jumax );
1985 Standard_Integer ivn = Min ( ivmin, jvmin );
1986 Standard_Integer ivx = Max ( ivmax, jvmax );
1987 Standard_Boolean ok = ( iun == iux || iun+1 == iux ) &&
1988 ( ivn == ivx || ivn+1 == ivx );
1989 if ( ok && extend ) { iumin = iun; iumax = iux; ivmin = ivn; ivmax = ivx; }
1993 //=======================================================================
1994 //function : CollectWires
1996 //=======================================================================
1998 void ShapeFix_ComposeShell::CollectWires (ShapeFix_SequenceOfWireSegment &wires,
1999 ShapeFix_SequenceOfWireSegment &seqw)
2001 ShapeAnalysis_Edge sae;
2002 Standard_Integer i; // svv #1
2003 // Collect information on short closed segments
2004 TColStd_Array1OfInteger shorts(1,seqw.Length());
2005 for ( i=1; i <= seqw.Length(); i++ ) {
2006 if(seqw(i).IsVertex() || seqw(i).Orientation() == TopAbs_INTERNAL) {
2007 wires.Append(seqw(i));
2013 for ( Standard_Integer k=1; ! myClosedMode && k <= seqw(i).NbEdges(); k++ )
2014 if ( ! seqw(i).CheckPatchIndex ( k ) ) {
2015 std::cout << "Warning: ShapeFix_ComposeShell::CollectWires: Wrong patch indices" << std::endl;
2019 Standard_Integer isshort = IsShortSegment ( seqw(i), myFace, myGrid, myLoc,
2020 myUResolution, myVResolution );
2021 shorts.SetValue ( i, isshort );
2023 ( seqw(i).Orientation() == TopAbs_EXTERNAL ||
2024 ( seqw(i).NbEdges() == 1 && //:abv 13.05.02: OCC320 - remove if degenerated
2025 BRep_Tool::Degenerated ( seqw(i).Edge(1) ) ) ) ) {
2027 std::cout << "Info: ShapeFix_ComposeShell::CollectWires: Short segment ignored" << std::endl;
2029 seqw(i).Orientation ( TopAbs_INTERNAL );
2033 Handle(ShapeExtend_WireData) sbwd;
2034 gp_Pnt2d endPnt, firstPnt;
2035 gp_Vec2d endTan, firstTan;
2036 TopoDS_Vertex firstV, endV;
2037 TopoDS_Edge firstEdge, lastEdge;
2038 Standard_Real tol = 0;
2039 Standard_Integer iumin = 0, iumax = 0, ivmin = 0, ivmax = 0;
2040 Standard_Real dsu=0., dsv=0.;
2041 Standard_Boolean canBeClosed = Standard_False;
2043 Standard_Integer index = 0;
2044 Standard_Boolean misoriented = Standard_True, samepatch = Standard_False;
2045 Standard_Boolean reverse = Standard_False, connected = Standard_False;
2046 Standard_Real angle = -M_PI, mindist = RealLast();
2047 Standard_Integer weigth = 0;
2048 Standard_Real shiftu=0., shiftv=0.;
2050 // find next segment to connect (or first if sbwd is NULL)
2051 for ( i = 1; i <= seqw.Length(); i++ ) {
2052 ShapeFix_WireSegment seg = seqw.Value(i);
2055 TopAbs_Orientation anOr = seg.Orientation();
2056 if ( anOr == TopAbs_INTERNAL ) continue;
2058 // for first segment, take any
2059 if ( sbwd.IsNull() ) {
2060 if ( shorts(i) >0 ) continue;
2061 if ( anOr == TopAbs_EXTERNAL ) continue;
2062 if ( anOr == TopAbs_FORWARD ) reverse = Standard_True;
2064 seg.GetPatchIndex ( 1, iumin, iumax, ivmin, ivmax );
2066 misoriented = Standard_False;
2071 // check whether current segment is on the same patch with previous
2072 Standard_Boolean sp = IsSamePatch ( seg, myGrid->NbUPatches(), myGrid->NbVPatches(),
2073 iumin, iumax, ivmin, ivmax );
2075 // not same patch has lowest priority
2076 if ( ! sp && ( canBeClosed || ( index && samepatch ) ) ) continue;
2078 // try to connect, with the following priorities:
2079 // The name of property Weigth:
2080 // sharing vertex auto
2083 // misorientation = 0 8
2084 // connected in 2d 4
2088 Handle(ShapeExtend_WireData) wire = seg.WireData();
2089 for ( Standard_Integer j=0; j <2; j++ ) {
2090 if ( ! endV.IsSame ( j ? seg.LastVertex() : seg.FirstVertex() ) ) continue;
2092 // check for misorientation only if nothing better is found
2093 Standard_Boolean misor = ( anOr == ( j ? TopAbs_REVERSED : TopAbs_FORWARD ) );
2094 // if ( misor ) continue; // temporarily, to be improved
2096 // returning back by the same edge is lowest priority
2097 if ( lastEdge.IsSame ( wire->Edge ( j ? wire->NbEdges() : 1 ) ) ) {
2098 if ( ! index && ! canBeClosed ) { // || ( sp && ! samepatch ) ) {
2101 connected = Standard_True;
2102 misoriented = misor;
2104 weigth = ( sp ? 16 : 0 ) + ( connected ? 8 : 0 ) + (misor==0 ? 4 : 0);
2110 // compute starting tangent
2114 Standard_Real edgeTol = 0;
2115 for ( k=1; k <= wire->NbEdges(); k++ ) {
2116 TopoDS_Shape tmpE = wire->Edge(wire->NbEdges()-k+1).Reversed();
2117 TopoDS_Edge edge = ( j ? TopoDS::Edge ( tmpE ) :
2119 edgeTol = BRep_Tool::Tolerance ( edge );
2120 //if ( sae.GetEndTangent2d ( edge, myFace, Standard_False, lPnt, lVec ) ) break;
2121 if ( sae.GetEndTangent2d ( edge, myFace, Standard_False, lPnt, lVec, 1.e-3 ) ) break;
2123 if ( k > wire->NbEdges() ) myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2125 if ( myClosedMode ) {
2127 shiftu = ShapeAnalysis::AdjustByPeriod ( lPnt.X(), endPnt.X(), myUPeriod );
2128 lPnt.SetX ( lPnt.X() + shiftu );
2131 shiftv = ShapeAnalysis::AdjustByPeriod ( lPnt.Y(), endPnt.Y(), myVPeriod );
2132 lPnt.SetY ( lPnt.Y() + shiftv );
2136 // short segment is to be taken with highest priority by angle
2137 Standard_Real ang = ( shorts(i) >0 ? M_PI : endTan.Angle ( lVec ) );
2138 if ( myClosedMode && shorts(i) <=0 && M_PI-ang < ::Precision::Angular() )
2139 ang = 0.; // abv 21 Mar 00: trj3_s1-md-214.stp #2471: avoid going back
2141 // abv 05 Feb 02: face from Parasolid: use tolerance of edges for check
2142 // for coincidence (instead of vertex tolerance) in order
2143 // this check to be in agreement with check for position of wire segments
2144 // thus avoiding bad effects on overlapping edges
2145 Standard_Real ctol = Max ( edgeTol, BRep_Tool::Tolerance(lastEdge) );
2146 Standard_Boolean conn = IsCoincided ( endPnt, lPnt, myUResolution, myVResolution, ctol );
2147 Standard_Real dist = endPnt.SquareDistance ( lPnt );
2149 // check if case is better than last found
2150 Standard_Integer w1 = ( sp ? 16 : 0 ) + ( conn ? 4 : 0 ) + (misor==0 ? 8 : 0);
2151 Standard_Integer tail1 = ( !conn && (dist < mindist) ? 2 : 0) + (ang > angle ? 1 : 0);
2152 Standard_Integer tail2 = ( !connected &&(dist > mindist) ? 2 : 0) + (ang < angle ? 1 : 0);
2153 if(w1+tail1 <= weigth+tail2)
2161 misoriented = misor;
2169 // if next segment found, connect it
2172 myInvertEdgeStatus = Standard_True;
2173 ShapeFix_WireSegment seg = seqw.Value(index);
2174 if ( sbwd.IsNull() ) sbwd = new ShapeExtend_WireData;
2175 else if ( samepatch ) { // extend patch indices
2176 IsSamePatch ( seg, myGrid->NbUPatches(), myGrid->NbVPatches(),
2177 iumin, iumax, ivmin, ivmax, Standard_True );
2180 //for closed mode in case if current segment is seam segment it is necessary to detect crossing seam edge
2181 //in order to have possibility to take candidate from other patch
2183 seg.GetPatchIndex ( 1, iumin, iumax, ivmin, ivmax );
2185 // TopAbs_Orientation or = seg.Orientation();
2186 if ( ! reverse ) sbwd->Add ( seg.WireData() );
2188 Handle(ShapeExtend_WireData) wire = new ShapeExtend_WireData;
2189 wire->ManifoldMode() = Standard_False;
2190 wire->Add ( seg.WireData() );
2191 wire->Reverse ( myFace );
2194 if ( seg.Orientation() == TopAbs_EXTERNAL )
2195 seg.Orientation ( reverse ? TopAbs_REVERSED : TopAbs_FORWARD );
2197 seg.Orientation ( TopAbs_INTERNAL );
2198 seqw.SetValue ( index, seg );
2200 else if ( sbwd.IsNull() ) break; // stop when no free segments available
2201 // for first segment, remember start point
2202 if ( endV.IsNull() ) {
2203 firstEdge = sbwd->Edge(1);
2204 firstV = sae.FirstVertex ( firstEdge );
2205 //sae.GetEndTangent2d ( firstEdge, myFace, Standard_False, firstPnt, firstTan );
2206 sae.GetEndTangent2d ( firstEdge, myFace, Standard_False, firstPnt, firstTan, 1.e-3 );
2209 // update last edge and vertex (only for not short segments)
2210 Standard_Boolean doupdate = ( index && ( shorts(index) <=0 || endV.IsNull() ) );
2212 lastEdge = sbwd->Edge ( sbwd->NbEdges() );
2213 endV = sae.LastVertex ( lastEdge );
2214 tol = BRep_Tool::Tolerance ( endV );
2215 // BUC60035 2053: iteration on edges is required
2216 Standard_Integer k; // svv #1
2217 for ( k=sbwd->NbEdges(); k >=1; k-- )
2218 //if ( sae.GetEndTangent2d ( sbwd->Edge ( k ), myFace, Standard_True, endPnt, endTan ) )
2219 if ( sae.GetEndTangent2d ( sbwd->Edge ( k ), myFace, Standard_True, endPnt, endTan, 1.e-3 ) )
2221 if ( k <1 ) myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL2 );
2222 if ( myUClosed ) endPnt.SetX ( endPnt.X() + dsu );
2223 if ( myVClosed ) endPnt.SetY ( endPnt.Y() + dsv );
2226 // if closed or no next segment found, add to wires
2227 canBeClosed = endV.IsSame ( firstV );
2228 if ( ! index || ( canBeClosed &&
2229 ! lastEdge.IsSame ( firstEdge ) && // cylinder (seam)
2230 IsCoincided ( endPnt, firstPnt, myUResolution, myVResolution, 2.* tol ) ) ) {
2231 if ( ! endV.IsSame ( sae.FirstVertex ( firstEdge ) ) ) {
2232 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_FAIL5 );
2234 std::cout << "Warning: ShapeFix_ComposeShell::CollectWires: can't close wire" << std::endl;
2237 ShapeFix_WireSegment s ( sbwd, TopAbs_FORWARD );
2238 s.DefineIUMin(1,iumin);
2239 s.DefineIUMax(1,iumax);
2240 s.DefineIVMin(1,ivmin);
2241 s.DefineIVMax(1,ivmax);
2245 canBeClosed = Standard_False;
2249 // Check if some wires are short in 3d (lie entirely inside one vertex),
2250 // and if yes try to merge them with others
2251 //pdn The short seqments are stil plased in "in" sequence.
2253 for ( i=1; i <= seqw.Length(); i++ ) {
2254 if ( shorts(i) != 1 ||
2255 seqw(i).IsVertex() ||
2256 seqw(i).Orientation() == TopAbs_INTERNAL ||
2257 seqw(i).Orientation() == TopAbs_EXTERNAL )
2260 // find any other wire containing the same vertex
2261 Handle(ShapeExtend_WireData) wd = seqw(i).WireData();
2262 TopoDS_Vertex V = seqw(i).FirstVertex();
2263 Standard_Integer minj=0, mink=0;
2266 Standard_Real mindist=0;
2267 Standard_Boolean samepatch = Standard_False;
2268 // Standard_Integer iumin, iumax, ivmin, ivmax;
2269 seqw(i).GetPatchIndex ( 1, iumin, iumax, ivmin, ivmax );
2270 sae.GetEndTangent2d ( wd->Edge(1), myFace, Standard_False, p2d, vec );
2271 for ( Standard_Integer j=1; j <= wires.Length(); j++ ) {
2272 // if ( j == i ) continue;
2273 // Handle(ShapeExtend_WireData)
2274 sbwd = wires(j).WireData();
2275 for ( Standard_Integer k=1; k <= sbwd->NbEdges(); k++ ) {
2276 if ( !V.IsSame ( sae.FirstVertex ( sbwd->Edge(k) ) ) ) continue; //pdn I suppose that short segment should be inserted into the SAME vertex.
2278 Standard_Boolean sp = IsSamePatch ( wires(j), myGrid->NbUPatches(), myGrid->NbVPatches(),
2279 iumin, iumax, ivmin, ivmax );
2280 if ( samepatch && !sp) continue;
2282 sae.GetEndTangent2d ( sbwd->Edge(k), myFace, Standard_False, pp, vec );
2283 Standard_Real dist = pp.SquareDistance ( p2d );
2284 if ( sp && ! samepatch ) { minj = j; mink = k; mindist = dist;samepatch=sp;}
2286 if ( ! minj || mindist > dist ) { minj = j; mink = k; mindist = dist;samepatch=sp; }
2290 //pdn add into resulting sequence!
2291 ShapeFix_WireSegment s ( wd, TopAbs_FORWARD );
2294 std::cout <<"Warning: Short segment processed as separate wire"<<std::endl;
2299 // and if found, merge
2300 // Handle(ShapeExtend_WireData)
2301 sbwd = wires(minj).WireData();
2302 for ( Standard_Integer n=1; n <= wd->NbEdges(); n++ )
2303 sbwd->Add ( wd->Edge(n), mink++ );
2305 // wires.Remove ( i );
2310 //=======================================================================
2311 //function : DispatchWires
2313 //=======================================================================
2315 static gp_Pnt2d GetMiddlePoint (const ShapeFix_WireSegment wire,
2316 const TopoDS_Face face)
2318 if(wire.IsVertex()) {
2319 TopoDS_Vertex aV = wire.GetVertex();
2320 gp_Pnt aP3D = BRep_Tool::Pnt(aV );
2321 Handle(Geom_Surface) surf = BRep_Tool::Surface(face);
2322 Handle(ShapeAnalysis_Surface) aSurfTool = new ShapeAnalysis_Surface(surf);
2323 return aSurfTool->ValueOfUV(aP3D,Precision::Confusion());
2326 ShapeAnalysis_Edge sae;
2327 ShapeAnalysis_Curve sac;
2328 Handle(ShapeExtend_WireData) wd = wire.WireData();
2329 for(Standard_Integer i = 1; i <= wd->NbEdges(); i++) {
2330 TopoDS_Edge E = wd->Edge (i);
2331 Standard_Real cf,cl;
2332 Handle(Geom2d_Curve) c2d;
2333 if(sae.PCurve (E,face,c2d,cf,cl,Standard_False)) {
2334 sac.FillBndBox ( c2d, cf, cl, 3, Standard_False, box );
2335 // box.Add(c2d->Value(cf));
2336 // box.Add(c2d->Value(cl));
2337 // box.Add(c2d->Value((cl+cf)/2.));
2340 if ( box.IsVoid() ) return gp_Pnt2d(0.,0.);
2341 Standard_Real aXmin, aYmin, aXmax, aYmax;
2342 box.Get(aXmin, aYmin, aXmax, aYmax);
2343 return gp_Pnt2d ( 0.5 * ( aXmax + aXmin ), 0.5 * ( aYmax + aYmin ) );
2346 //=======================================================================
2347 //function : MakeFacesOnPatch
2349 //=======================================================================
2351 void ShapeFix_ComposeShell::MakeFacesOnPatch (TopTools_SequenceOfShape &faces,
2352 const Handle(Geom_Surface)& surf,
2353 TopTools_SequenceOfShape &loops) const
2357 // Case of single loop: just add it to face
2358 if ( loops.Length() == 1 ) {
2359 TopoDS_Face newFace;
2360 B.MakeFace ( newFace, surf, myLoc, ::Precision::Confusion() );
2361 TopoDS_Shape aSH = loops.Value(1);
2362 if( aSH.ShapeType() != TopAbs_WIRE)
2364 TopoDS_Wire wire = TopoDS::Wire ( loops.Value(1) );
2366 B.Add ( newFace, wire );
2367 if(myInvertEdgeStatus) {
2368 Handle(ShapeFix_Face) sff = new ShapeFix_Face(newFace);
2369 sff->FixAddNaturalBoundMode() = Standard_False;
2370 TopTools_DataMapOfShapeListOfShape MapWires;
2372 sff->FixOrientation(MapWires);
2373 newFace = sff->Face();
2376 faces.Append ( newFace );
2380 // For several loops, first find roots
2381 // make pseudo-face,
2383 B.MakeFace ( pf, surf, myLoc, ::Precision::Confusion() );
2384 Handle(Geom_Surface) atSurf = BRep_Tool::Surface(pf);
2386 Handle(ShapeAnalysis_Surface) aSurfTool = new ShapeAnalysis_Surface(atSurf);
2387 TopTools_SequenceOfShape roots;
2388 Standard_Integer i; // svv #1
2389 for ( i = 1; i <= loops.Length(); i++ ) {
2392 TopoDS_Shape aShape = loops(i);
2393 if(aShape.ShapeType() != TopAbs_WIRE ||
2394 (aShape.Orientation() != TopAbs_FORWARD && aShape.Orientation() != TopAbs_REVERSED))
2397 wr = TopoDS::Wire ( loops(i) );
2398 TopoDS_Iterator ew (wr);
2399 if ( ! ew.More() ) continue;
2401 TopoDS_Edge ed = TopoDS::Edge ( ew.Value() );
2402 while(ed.Orientation() != TopAbs_FORWARD &&
2403 ed.Orientation() != TopAbs_REVERSED ) {
2406 ed = TopoDS::Edge ( ew.Value() );
2410 if ( ! ew.More() ) continue;
2411 Standard_Real cf, cl;
2412 Handle(Geom2d_Curve) cw = BRep_Tool::CurveOnSurface ( ed, pf, cf, cl );
2413 if ( cw.IsNull() ) continue;
2414 unp = cw->Value ( 0.5 * ( cf + cl ) );
2416 Standard_Integer j; // svv #1
2417 for ( j = 1; j <= loops.Length(); j++ ) {
2418 if ( i == j ) continue;
2419 TopoDS_Shape aShape2 = loops(j);
2420 if(aShape2.ShapeType() != TopAbs_WIRE ||
2421 (aShape2.Orientation() != TopAbs_FORWARD &&
2422 aShape2.Orientation() != TopAbs_REVERSED))
2424 TopoDS_Wire w1 = TopoDS::Wire (aShape2);
2427 awtmp.Orientation(TopAbs_FORWARD);
2428 TopoDS_Iterator aIt(w1);
2429 Standard_Integer nbe =0;
2430 for( ; aIt.More() ; aIt.Next()) {
2431 if(aIt.Value().Orientation() == TopAbs_FORWARD ||
2432 aIt.Value().Orientation() == TopAbs_REVERSED) {
2433 B.Add(awtmp,aIt.Value());
2440 B.MakeFace ( fc, surf, myLoc, ::Precision::Confusion() );
2441 B.Add ( fc, awtmp );
2442 BRepTopAdaptor_FClass2d clas ( fc, ::Precision::PConfusion() );
2443 TopAbs_State stPoint = clas.Perform (unp,Standard_False);
2444 if(stPoint == TopAbs_ON || stPoint == TopAbs_UNKNOWN) {
2446 TopoDS_Edge anEdge = TopoDS::Edge ( ew.Value() );
2447 Standard_Real aCF, aCL;
2448 Handle(Geom2d_Curve) aCW = BRep_Tool::CurveOnSurface ( anEdge, pf, aCF, aCL);
2449 // handle tangential case (ON)
2450 while ( stPoint == TopAbs_ON || stPoint == TopAbs_UNKNOWN ) {
2451 stPoint = clas.Perform (aCW->Value(aCL), Standard_False );
2452 if ( ! ew.More() ) break;
2454 if ( ! ew.More() ) break;
2455 TopoDS_Edge edge = TopoDS::Edge ( ew.Value() );
2456 if(edge.Orientation() !=TopAbs_FORWARD &&
2457 edge.Orientation() !=TopAbs_REVERSED)
2459 Handle(Geom2d_Curve) c2d = BRep_Tool::CurveOnSurface ( edge, pf, aCF, aCL );
2460 if ( ! c2d.IsNull() ) aCW = c2d;
2463 TopAbs_State stInfin = clas.PerformInfinitePoint();
2464 if ( stPoint != stInfin ) break;
2466 if ( j > loops.Length()) {
2467 roots.Append ( wr );
2468 // loops.Remove ( i-- );
2472 // And remove them from the list of loops
2473 for ( i = 1; i <= loops.Length(); i++ )
2474 for ( Standard_Integer j = 1; j <= roots.Length(); j++ )
2475 if ( loops(i).IsSame ( roots(j) ) ) { loops.Remove(i--); break; }
2477 // check for lost wires, and if they are, make them roots
2478 if ( roots.Length() <=0 && loops.Length() >0 ) {
2480 std::cout << "Error: ShapeFix_ComposeShell::MakeFacesOnPatch: can't dispatch wires" << std::endl;
2482 for ( Standard_Integer j=1; j <= loops.Length(); j++ ) {
2483 roots.Append ( loops(j) );
2488 // Then iterate on loops
2489 for ( i=1; i <= roots.Length(); i++ ) {
2490 Standard_Boolean reverse = Standard_False;
2491 TopoDS_Wire wire = TopoDS::Wire ( roots(i) );
2493 B.MakeFace ( fc, surf, myLoc, ::Precision::Confusion() );
2495 BRepTopAdaptor_FClass2d clas ( fc, ::Precision::PConfusion() );
2496 if ( clas.PerformInfinitePoint() == TopAbs_IN ) {
2497 reverse = Standard_True;
2499 std::cout << "Warning: ShapeFix_ComposeShell::MakeFacesOnPatch: badly oriented wire" << std::endl;
2503 // find all holes for that loop
2504 TopTools_SequenceOfShape holes; // holes in holes not supported
2505 Standard_Integer j; // svv #1
2506 for ( j=1; j <= loops.Length(); j++ ) {
2508 if(loops(j).ShapeType() == TopAbs_WIRE) {
2509 TopoDS_Wire bw = TopoDS::Wire ( loops(j) );
2510 TopoDS_Iterator ew ( bw );
2511 if ( ! ew.More() ) continue;
2512 TopoDS_Edge ed = TopoDS::Edge ( ew.Value() );
2513 Standard_Real cf, cl;
2514 Handle(Geom2d_Curve) cw = BRep_Tool::CurveOnSurface ( ed, pf, cf, cl );
2515 if ( cw.IsNull() ) continue;
2516 unp = cw->Value ( 0.5 * ( cf + cl ) );
2518 else if(loops(j).ShapeType() == TopAbs_VERTEX) {
2519 TopoDS_Vertex aV = TopoDS::Vertex(loops(j));
2520 gp_Pnt aP = BRep_Tool::Pnt(aV);
2521 unp = aSurfTool->ValueOfUV(aP,Precision::Confusion());
2525 TopAbs_State state = clas.Perform (unp,Standard_False);
2526 if ((state == TopAbs_OUT) == reverse) {
2527 holes.Append ( loops(j) );
2528 loops.Remove ( j-- );
2532 // and add them to new face (no orienting is done)
2533 TopoDS_Face newFace;
2534 B.MakeFace ( newFace, surf, myLoc, ::Precision::Confusion() );
2535 B.Add ( newFace, wire );
2536 for ( j=1; j <= holes.Length(); j++ ) {
2537 TopoDS_Shape aSh = holes(j);
2538 if(aSh.ShapeType() == TopAbs_VERTEX) {
2539 TopoDS_Vertex aNewV = ShapeAnalysis_TransferParametersProj::CopyNMVertex(TopoDS::Vertex(aSh), newFace,myFace);
2540 Context()->Replace(aSh,aNewV);
2541 B.Add ( newFace,aNewV);
2544 B.Add ( newFace, holes(j) );
2546 faces.Append ( newFace );
2548 // check for lost wires, and if they are, make them roots
2549 if ( i == roots.Length() && loops.Length() >0 ) {
2551 std::cout << "Error: ShapeFix_ComposeShell::MakeFacesOnPatch: can't dispatch wires" << std::endl;
2553 for ( j=1; j <= loops.Length(); j++ ) {
2554 TopoDS_Shape aSh = loops(j);
2555 if(aSh.ShapeType() == TopAbs_WIRE && (aSh.Orientation() == TopAbs_FORWARD ||
2556 aSh.Orientation() == TopAbs_REVERSED))
2557 roots.Append ( loops(j) );
2564 //=======================================================================
2565 //function : DispatchWires
2567 //=======================================================================
2569 void ShapeFix_ComposeShell::DispatchWires (TopTools_SequenceOfShape &faces,
2570 ShapeFix_SequenceOfWireSegment& wires) const
2574 // in closed mode, apply FixShifted to all wires before dispatching them
2575 if ( myClosedMode ) {
2577 sfw.SetFace ( myFace );
2578 sfw.SetPrecision ( Precision() );
2580 // pdn: shift pcurves in the seam to make OK shape w/o fixshifted
2582 for ( i=1; i <= wires.Length(); i++ ) {
2583 if(wires(i).IsVertex())
2585 Handle(ShapeExtend_WireData) sbwd = wires(i).WireData();
2587 for(Standard_Integer jL=1; jL <= sbwd->NbEdges(); jL++ ) {
2588 TopoDS_Edge E = sbwd->Edge(jL);
2589 if ( E.Orientation() == TopAbs_REVERSED && BRep_Tool::IsClosed(E,myFace) ) {
2590 Standard_Real f1,l1, f2, l2;
2591 Handle(Geom2d_Curve) c21 = BRep_Tool::CurveOnSurface(E,myFace,f1,l1);
2592 TopoDS_Shape dummy = E.Reversed();
2593 Handle(Geom2d_Curve) c22 = BRep_Tool::CurveOnSurface(TopoDS::Edge(dummy),myFace,f2,l2);
2594 Standard_Real dPreci = ::Precision::PConfusion()*Precision::PConfusion();
2595 gp_Pnt2d pf1 = c21->Value(f1);
2596 gp_Pnt2d pl1 = c21->Value(l1);
2597 gp_Pnt2d pf2 = c22->Value(f2);
2598 gp_Pnt2d pl2 = c22->Value(l2);
2599 if ( c21 == c22 || pf1.SquareDistance(pf2) < dPreci ||
2600 pl1.SquareDistance(pl2) < dPreci ) {
2601 gp_Vec2d shift(0.,0.);
2602 if ( myUClosed && Abs ( pf2.X() - pl2.X() ) < ::Precision::PConfusion() )
2603 shift.SetX(myUPeriod);
2604 if ( myVClosed && Abs ( pf2.Y() - pl2.Y() ) < ::Precision::PConfusion() )
2605 shift.SetY(myVPeriod);
2606 c22->Translate(shift);
2612 for ( i=1; i <= wires.Length(); i++ ) {
2613 if(wires(i).IsVertex())
2615 Handle(ShapeExtend_WireData) sbwd = wires(i).WireData();
2617 //: abv 30.08.01: torHalf2.sat: if wire contains single degenerated
2618 // edge, skip that wire
2619 if ( sbwd->NbEdges() <=0 ||
2620 ( sbwd->NbEdges() ==1 && BRep_Tool::Degenerated(sbwd->Edge(1)) ) ) {
2628 // force recomputation of degenerated edges (clear pcurves)
2629 ShapeBuild_Edge sbe;
2630 for (Standard_Integer jL=1; jL <= sbwd->NbEdges(); jL++ ) {
2631 if ( BRep_Tool::Degenerated(sbwd->Edge(jL)) )
2632 sbe.RemovePCurve(sbwd->Edge(jL),myFace);
2633 // sfw.FixDegenerated(jL);
2635 sfw.FixDegenerated();
2639 // Compute center points for wires
2640 TColgp_SequenceOfPnt2d mPnts;
2641 Standard_Integer nb = wires.Length();
2643 // pdn protection on empty sequence
2647 Standard_Integer i; //svv #1
2648 for ( i = 1; i <= nb; i++ )
2649 mPnts.Append ( GetMiddlePoint ( wires(i), myFace ) );
2651 // Put each wire on its own surface patch (by reassigning pcurves)
2652 // and build 3d curve if necessary
2653 ShapeBuild_ReShape rs;
2654 ShapeBuild_Edge sbe;
2655 ShapeAnalysis_Edge sae;
2656 Handle(ShapeFix_Edge) sfe = new ShapeFix_Edge;
2658 Standard_Real U1,U2,V1,V2;
2659 myGrid->Bounds(U1,U2,V1,V2);
2660 for ( i = 1; i <= nb; i++ ) {
2661 gp_Pnt2d pnt = mPnts(i);
2662 Standard_Real ush =0., vsh=0.;
2664 ush = ShapeAnalysis::AdjustToPeriod(pnt.X(),U1,U2);
2665 pnt.SetX(pnt.X()+ush);
2668 vsh = ShapeAnalysis::AdjustToPeriod(pnt.Y(),V1,V2);
2669 pnt.SetY(pnt.Y()+vsh);
2672 Standard_Integer indU = myGrid->LocateUParameter ( pnt.X() );
2673 Standard_Integer indV = myGrid->LocateVParameter ( pnt.Y() );
2675 // compute parametric transformation
2677 Standard_Real uFact=1.;
2678 Standard_Boolean needT = myGrid->GlobalToLocalTransformation ( indU, indV, uFact, T );
2679 if ( ush != 0. || vsh != 0. ) {
2681 Sh.SetTranslation ( gp_Vec2d ( ush, vsh ) );
2683 needT = Standard_True;
2685 if(wires(i).IsVertex())
2687 Handle(Geom_Surface) surf = myGrid->Patch ( indU, indV );
2689 B.MakeFace ( face, surf, myLoc, ::Precision::Confusion() );
2690 Handle(ShapeExtend_WireData) sewd = wires(i).WireData();
2691 for ( Standard_Integer j = 1; j <= sewd->NbEdges(); j++ ) {
2692 // Standard_Integer nsplit = ApplyContext ( sewd, j, context );
2693 // if ( nsplit <1 ) { j--; continue; }
2695 TopoDS_Edge edge = sewd->Edge(j);
2697 // !! Accurately copy pcurves for SEAMS and SEAM-like edges !!
2699 // if edge is already copied, don`t copy any more
2700 TopoDS_Edge newEdge;
2701 TopoDS_Edge anInitEdge = edge;
2702 Standard_Boolean ismanifold = (edge.Orientation() == TopAbs_FORWARD ||
2703 edge.Orientation() == TopAbs_REVERSED);
2704 if ( rs.IsRecorded ( edge ) ) {
2706 TopoDS_Shape tmpNE = rs.Value(edge);
2707 newEdge = TopoDS::Edge ( tmpNE );
2711 anInitEdge.Orientation(TopAbs_FORWARD);
2713 newEdge = sbe.Copy ( anInitEdge, Standard_False );
2715 newEdge.Orientation(edge.Orientation());
2716 rs.Replace ( edge, newEdge );
2717 Context()->Replace ( edge, newEdge );
2720 sbe.ReassignPCurve ( newEdge, myFace, face );
2722 // transform pcurve to parametric space of patch
2725 Handle(Geom2d_Curve) c2d;
2726 if ( sae.PCurve ( newEdge, face, c2d, f, l, Standard_False ) ) {
2727 Standard_Real newf = f, newl = l;
2728 Handle(Geom2d_Curve) c2dnew = sbe.TransformPCurve ( c2d, T, uFact, newf, newl );
2729 if ( BRep_Tool::IsClosed ( newEdge, face ) ) {
2730 Standard_Real cf, cl;
2731 Handle(Geom2d_Curve) c2d2;
2733 TopoDS_Shape tmpE = newEdge.Reversed();
2734 TopoDS_Edge e2 = TopoDS::Edge (tmpE );
2735 if ( sae.PCurve ( e2, face, c2d2, cf, cl, Standard_False ) ) {
2736 if ( newEdge.Orientation() == TopAbs_FORWARD )
2737 B.UpdateEdge ( newEdge, c2dnew, c2d2, face, 0. );
2738 else B.UpdateEdge ( newEdge, c2d2, c2dnew, face, 0. );
2740 else B.UpdateEdge ( newEdge, c2dnew, face, 0. );
2742 else B.UpdateEdge ( newEdge, c2dnew, face, 0. );
2743 B.Range ( newEdge, face, newf, newl );
2744 if ( (newf != f || newl != l) && !BRep_Tool::Degenerated(newEdge) )
2745 B.SameRange ( newEdge, Standard_False );
2749 if(!BRep_Tool::SameRange(newEdge)) {
2752 TopoDS_Edge afe = TopoDS::Edge(newEdge.Oriented(TopAbs_FORWARD));
2753 etmp = sbe.Copy (afe , Standard_False );
2756 etmp = sbe.Copy ( newEdge, Standard_False );
2757 sfe->FixAddCurve3d ( etmp );
2758 Standard_Real cf, cl;
2759 Handle(Geom_Curve) c3d;
2760 if(sae.Curve3d(etmp,c3d,cf,cl,Standard_False)) {
2761 B.UpdateEdge ( newEdge, c3d, 0. );
2762 sbe.SetRange3d ( newEdge, cf, cl );
2766 sfe->FixAddCurve3d ( newEdge );
2767 sewd->Set ( newEdge, j );
2771 // Collect wires in packets lying on same surface and dispatch them
2772 TColStd_Array1OfBoolean used ( 1, nb );
2773 used.Init ( Standard_False );
2775 TopTools_SequenceOfShape loops;
2777 Handle(Geom_Surface) Surf;
2778 for ( i = 1; i <= nb; i++ ) {
2779 if ( used(i) ) continue;
2780 Handle(Geom_Surface) S = myGrid->Patch ( mPnts(i) );
2781 if ( Surf.IsNull() ) Surf = S;
2782 else if ( S != Surf ) continue;
2783 used(i) = Standard_True;
2784 ShapeFix_WireSegment aSeg = wires(i);
2785 if(aSeg.IsVertex()) {
2786 TopoDS_Vertex aVert = aSeg.GetVertex();
2787 if(aVert.Orientation() == TopAbs_INTERNAL)
2788 loops.Append(wires(i).GetVertex());
2791 Handle(ShapeExtend_WireData) aWD = aSeg.WireData();
2793 loops.Append ( aWD->Wire() );
2796 if ( Surf.IsNull() ) break;
2798 MakeFacesOnPatch ( faces, Surf, loops );
2802 //======================================================================
2803 //function : SetTransferParamTool
2805 //=======================================================================
2807 void ShapeFix_ComposeShell::SetTransferParamTool(const Handle(ShapeAnalysis_TransferParameters)& TransferParam)
2809 myTransferParamTool = TransferParam;
2812 //=======================================================================
2813 //function : GetTransferParamTool
2815 //=======================================================================
2817 Handle(ShapeAnalysis_TransferParameters) ShapeFix_ComposeShell::GetTransferParamTool() const
2819 return myTransferParamTool;
2822 //=======================================================================
2823 //function : ClosedMode
2825 //=======================================================================
2827 Standard_Boolean &ShapeFix_ComposeShell::ClosedMode()
2829 return myClosedMode;