[occt.git] / src / ShapeUpgrade / ShapeUpgrade_SplitCurve2d.cxx

// Created on: 1998-03-12
// Created by: Pierre BARRAS
// Copyright (c) 1998-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#include <ShapeUpgrade_SplitCurve2d.ixx>
#include <ShapeUpgrade.hxx>
#include <Geom2d_BSplineCurve.hxx>
#include <TColStd_ListIteratorOfListOfReal.hxx>
#include <TColStd_HSequenceOfReal.hxx>
#include <TColGeom2d_HArray1OfCurve.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <Geom2d_OffsetCurve.hxx>
#include <Standard_ErrorHandler.hxx>
#include <Standard_Failure.hxx>
#include <ShapeExtend.hxx>
#include <Precision.hxx>
#include <Geom2d_BezierCurve.hxx>
#include <ShapeAnalysis_Curve.hxx>

//=======================================================================
//function : ShapeUpgrade_SplitCurve2d
//purpose  : 
//=======================================================================

ShapeUpgrade_SplitCurve2d::ShapeUpgrade_SplitCurve2d()
{
}

//=======================================================================
//function : Init
//purpose  : 
//=======================================================================

 void ShapeUpgrade_SplitCurve2d::Init(const Handle(Geom2d_Curve)& C) 
{
  Init (C, C->FirstParameter(), C->LastParameter());
}

//=======================================================================
//function : Init
//purpose  : 
//=======================================================================

 void ShapeUpgrade_SplitCurve2d::Init(const Handle(Geom2d_Curve)& C,
				      const Standard_Real First,
				      const Standard_Real Last) 
{
//  if (ShapeUpgrade::Debug()) cout << "SplitCurve2d::Init"<<endl;
  Handle(Geom2d_Curve) CopyOfC = Handle(Geom2d_Curve)::DownCast(C->Copy());
  myCurve = CopyOfC;
  
  Standard_Real precision = Precision::PConfusion();
  Standard_Real firstPar = First;
  Standard_Real lastPar = Last;
  Handle (Geom2d_Curve) aCurve = myCurve;
  if(aCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) 
    aCurve=Handle(Geom2d_TrimmedCurve)::DownCast(aCurve)->BasisCurve();
  // 15.11.2002 PTV OCC966
  if(!ShapeAnalysis_Curve::IsPeriodic(C)) {
    Standard_Real fP = aCurve->FirstParameter();
    Standard_Real lP  = aCurve->LastParameter();
    if(Abs(firstPar-fP) < precision)
       firstPar = fP;
    if(Abs(lastPar-lP) < precision)
      lastPar = lP;
    if(firstPar < fP){
#ifdef DEB
      cout <<"Warning: The range of the edge exceeds the curve domain" <<endl;
#endif
      firstPar = fP;
    }
    if(lastPar > lP){
#ifdef DEB
      cout <<"Warning: The range of the edge exceeds the curve domain" <<endl;
#endif
      lastPar = lP;
    }
    if( (lastPar-firstPar) < precision)
      lastPar=firstPar+2*precision;
  }
  
  ShapeUpgrade_SplitCurve::Init (firstPar, lastPar);

  // first, we make a copy of C to prevent modification:
//  if (ShapeUpgrade::Debug()) cout << ". copy of the curve"<<endl;
  
  myNbCurves = 1;
}

//=======================================================================
//function : Build
//purpose  : 
//=======================================================================

 void ShapeUpgrade_SplitCurve2d::Build(const Standard_Boolean Segment) 
{
//  if (ShapeUpgrade::Debug()) cout<<"ShapeUpgrade_SplitCurve2d::Build"<<endl;
  Standard_Real First =  mySplitValues->Value(1);
  Standard_Real Last = mySplitValues->Value(mySplitValues->Length());
  //PrepareKnots();
  if (mySplitValues->Length() > 2)
    myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
  if (myCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
    Handle(Geom2d_TrimmedCurve) tmp = Handle(Geom2d_TrimmedCurve)::DownCast (myCurve);
    Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve();
    ShapeUpgrade_SplitCurve2d spc;
    spc.Init(BasCurve,First,Last); 
    spc.SetSplitValues(mySplitValues);
    spc.Build(Segment);
    myNbCurves = spc.GetCurves()->Length();
    
    myResultingCurves=new TColGeom2d_HArray1OfCurve (1,myNbCurves);
    if (myNbCurves == 1) {
      Handle(Geom2d_TrimmedCurve) NewTrimCurve = 
	new Geom2d_TrimmedCurve(spc.GetCurves()->Value(1),First,Last);
      myResultingCurves->SetValue(1,NewTrimCurve);
    }
    else 
      myResultingCurves = spc.GetCurves();
    myStatus |= spc.myStatus;
    return;
  }
  else if (myCurve->IsKind(STANDARD_TYPE(Geom2d_OffsetCurve))) {
    Handle(Geom2d_OffsetCurve) tmp = Handle(Geom2d_OffsetCurve)::DownCast (myCurve);
    Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve();
    Standard_Real Offset = tmp->Offset();
    ShapeUpgrade_SplitCurve2d spc;
    spc.Init(BasCurve,First,Last);
    spc.SetSplitValues(mySplitValues);
    spc.Build(Segment);
    myNbCurves = spc.GetCurves()->Length();
    myResultingCurves = new TColGeom2d_HArray1OfCurve (1,myNbCurves);
    for(Standard_Integer i = 1; i <= myNbCurves; i++) {
      Handle(Geom2d_OffsetCurve) NewOffsetCurve = new Geom2d_OffsetCurve(spc.GetCurves()->Value(i),Offset);
      myResultingCurves->SetValue(i,NewOffsetCurve);
    }
    myStatus |= spc.myStatus;
    return;
  }

  myNbCurves = mySplitValues->Length() -1;
  myResultingCurves=new TColGeom2d_HArray1OfCurve (1,myNbCurves);
  if(myNbCurves ==1) {
    Standard_Boolean filled = Standard_True;
    if ( Abs ( myCurve->FirstParameter() - First ) < Precision::PConfusion() && 
	 Abs ( myCurve->LastParameter()  - Last  ) < Precision::PConfusion() )
      myResultingCurves->SetValue(1,myCurve);
    
    else if ( ! Segment || (!myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)) &&
	     !myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve))) || ! Status ( ShapeExtend_DONE2 ) ) {
      if(myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)) ||
	     myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve) )) {
	Handle(Geom2d_Curve) theNewCurve = Handle(Geom2d_Curve)::DownCast(myCurve->Copy());
	try {
	  OCC_CATCH_SIGNALS
	  if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)))
	    Handle(Geom2d_BSplineCurve)::DownCast(theNewCurve)->Segment (First, Last);
	  else if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve)))
	    Handle(Geom2d_BezierCurve)::DownCast(theNewCurve)->Segment (First, Last);
	}
	catch (Standard_Failure) {
#ifdef DEB 
	  cout << "Warning: ShapeUpgrade_Split2dCurve::Build(): Exception in Segment      :";
	  Standard_Failure::Caught()->Print(cout); cout << endl;
#endif
	  theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),First,Last);
	}
	myResultingCurves->SetValue (1, theNewCurve);
      
      }
      else {
	Handle(Geom2d_TrimmedCurve) theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),First,Last);
	myResultingCurves->SetValue (1, theNewCurve);
      }
    }
    else filled = Standard_False;
    if ( filled ) return;
  }
  
  
  if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve))) {
    Handle(Geom2d_BSplineCurve) BsCurve = Handle(Geom2d_BSplineCurve)::DownCast(myCurve->Copy());
    Standard_Integer FirstInd =BsCurve->FirstUKnotIndex(), 
    LastInd = BsCurve->LastUKnotIndex();
    Standard_Integer j =  FirstInd;
    for(Standard_Integer ii =1 ; ii <= mySplitValues->Length(); ii++) {
      Standard_Real spval = mySplitValues->Value(ii);
      for(; j <=LastInd;j++) {
	if( spval > BsCurve->Knot(j) + Precision::PConfusion()) continue;
	if( spval < BsCurve->Knot(j) - Precision::PConfusion()) break;
	mySplitValues->SetValue(ii,BsCurve->Knot(j));
      }
      if(j == LastInd) break;
    }
    
  }
  for (Standard_Integer i = 1; i <= myNbCurves; i++) {
    // skl : in the next block I change "First","Last" to "Firstt","Lastt"
    Standard_Real Firstt = mySplitValues->Value(i), Lastt = mySplitValues->Value(i+1);
    Handle(Geom2d_Curve) theNewCurve;
    if(Segment) {
      // creates a copy of myCurve before to segment:
      if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)) ||
	  myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve))) {
	theNewCurve = Handle(Geom2d_Curve)::DownCast(myCurve->Copy());
	try {
	  OCC_CATCH_SIGNALS
	  if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)))
	    Handle(Geom2d_BSplineCurve)::DownCast(theNewCurve)->Segment (Firstt, Lastt);
	  else if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve)))
	    Handle(Geom2d_BezierCurve)::DownCast(theNewCurve)->Segment (Firstt, Lastt);
	  myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
	}
	catch (Standard_Failure) {
#ifdef DEB 
	  cout << "Warning: ShapeUpgrade_Split2dCurve::Build(): Exception in Segment      :";
	  Standard_Failure::Caught()->Print(cout); cout << endl;
#endif
	  theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),Firstt,Lastt);
	}
      }
      else 
	theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),Firstt,Lastt);
    }
    myResultingCurves->SetValue (i, theNewCurve);
  }
}

//=======================================================================
//function : GetCurves
//purpose  : 
//=======================================================================

const Handle(TColGeom2d_HArray1OfCurve)& ShapeUpgrade_SplitCurve2d::GetCurves() const
{
  return myResultingCurves;
}
Commit	Line	Data
b311480e	1	// Created on: 1998-03-12
	2	// Created by: Pierre BARRAS
	3	// Copyright (c) 1998-1999 Matra Datavision
973c2be1	4	// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e	5	//
973c2be1	6	// This file is part of Open CASCADE Technology software library.
b311480e	7	//
d5f74e42	8	// This library is free software; you can redistribute it and/or modify it under
d5f74e42	9	// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1	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.
b311480e	13	//
973c2be1	14	// Alternatively, this file may be used under the terms of Open CASCADE
973c2be1	15	// commercial license or contractual agreement.
7fd59977	16
	17	#include <ShapeUpgrade_SplitCurve2d.ixx>
	18	#include <ShapeUpgrade.hxx>
	19	#include <Geom2d_BSplineCurve.hxx>
	20	#include <TColStd_ListIteratorOfListOfReal.hxx>
	21	#include <TColStd_HSequenceOfReal.hxx>
	22	#include <TColGeom2d_HArray1OfCurve.hxx>
	23	#include <Geom2d_TrimmedCurve.hxx>
	24	#include <Geom2d_OffsetCurve.hxx>
	25	#include <Standard_ErrorHandler.hxx>
	26	#include <Standard_Failure.hxx>
	27	#include <ShapeExtend.hxx>
	28	#include <Precision.hxx>
	29	#include <Geom2d_BezierCurve.hxx>
	30	#include <ShapeAnalysis_Curve.hxx>
	31
	32	//=======================================================================
	33	//function : ShapeUpgrade_SplitCurve2d
	34	//purpose :
	35	//=======================================================================
	36
	37	ShapeUpgrade_SplitCurve2d::ShapeUpgrade_SplitCurve2d()
	38	{
	39	}
	40
	41	//=======================================================================
	42	//function : Init
	43	//purpose :
	44	//=======================================================================
	45
	46	void ShapeUpgrade_SplitCurve2d::Init(const Handle(Geom2d_Curve)& C)
	47	{
	48	Init (C, C->FirstParameter(), C->LastParameter());
	49	}
	50
	51	//=======================================================================
	52	//function : Init
	53	//purpose :
	54	//=======================================================================
	55
	56	void ShapeUpgrade_SplitCurve2d::Init(const Handle(Geom2d_Curve)& C,
	57	const Standard_Real First,
	58	const Standard_Real Last)
	59	{
	60	// if (ShapeUpgrade::Debug()) cout << "SplitCurve2d::Init"<<endl;
	61	Handle(Geom2d_Curve) CopyOfC = Handle(Geom2d_Curve)::DownCast(C->Copy());
	62	myCurve = CopyOfC;
	63
	64	Standard_Real precision = Precision::PConfusion();
	65	Standard_Real firstPar = First;
	66	Standard_Real lastPar = Last;
	67	Handle (Geom2d_Curve) aCurve = myCurve;
	68	if(aCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve)))
	69	aCurve=Handle(Geom2d_TrimmedCurve)::DownCast(aCurve)->BasisCurve();
	70	// 15.11.2002 PTV OCC966
	71	if(!ShapeAnalysis_Curve::IsPeriodic(C)) {
	72	Standard_Real fP = aCurve->FirstParameter();
	73	Standard_Real lP = aCurve->LastParameter();
	74	if(Abs(firstPar-fP) < precision)
	75	firstPar = fP;
	76	if(Abs(lastPar-lP) < precision)
	77	lastPar = lP;
	78	if(firstPar < fP){
	79	#ifdef DEB
80	cout <<"Warning: The range of the edge exceeds the curve domain" <<endl;
81	#endif
82	firstPar = fP;
83	}
84	if(lastPar > lP){
85	#ifdef DEB
86	cout <<"Warning: The range of the edge exceeds the curve domain" <<endl;
87	#endif
88	lastPar = lP;
89	}
90	if( (lastPar-firstPar) < precision)
91	lastPar=firstPar+2*precision;
92	}
93
94	ShapeUpgrade_SplitCurve::Init (firstPar, lastPar);
95
96	// first, we make a copy of C to prevent modification:
97	// if (ShapeUpgrade::Debug()) cout << ". copy of the curve"<<endl;
98
99	myNbCurves = 1;
100	}
101
102	//=======================================================================
103	//function : Build
104	//purpose :
105	//=======================================================================
106
107	void ShapeUpgrade_SplitCurve2d::Build(const Standard_Boolean Segment)
108	{
109	// if (ShapeUpgrade::Debug()) cout<<"ShapeUpgrade_SplitCurve2d::Build"<<endl;
110	Standard_Real First = mySplitValues->Value(1);
111	Standard_Real Last = mySplitValues->Value(mySplitValues->Length());
112	//PrepareKnots();
113	if (mySplitValues->Length() > 2)
114	myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
115	if (myCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
116	Handle(Geom2d_TrimmedCurve) tmp = Handle(Geom2d_TrimmedCurve)::DownCast (myCurve);
117	Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve();
118	ShapeUpgrade_SplitCurve2d spc;
119	spc.Init(BasCurve,First,Last);
120	spc.SetSplitValues(mySplitValues);
121	spc.Build(Segment);
122	myNbCurves = spc.GetCurves()->Length();
123
124	myResultingCurves=new TColGeom2d_HArray1OfCurve (1,myNbCurves);
125	if (myNbCurves == 1) {
126	Handle(Geom2d_TrimmedCurve) NewTrimCurve =
127	new Geom2d_TrimmedCurve(spc.GetCurves()->Value(1),First,Last);
128	myResultingCurves->SetValue(1,NewTrimCurve);
129	}
130	else
131	myResultingCurves = spc.GetCurves();
132	myStatus \|= spc.myStatus;
133	return;
134	}
135	else if (myCurve->IsKind(STANDARD_TYPE(Geom2d_OffsetCurve))) {
136	Handle(Geom2d_OffsetCurve) tmp = Handle(Geom2d_OffsetCurve)::DownCast (myCurve);
137	Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve();
138	Standard_Real Offset = tmp->Offset();
139	ShapeUpgrade_SplitCurve2d spc;
140	spc.Init(BasCurve,First,Last);
141	spc.SetSplitValues(mySplitValues);
142	spc.Build(Segment);
143	myNbCurves = spc.GetCurves()->Length();
144	myResultingCurves = new TColGeom2d_HArray1OfCurve (1,myNbCurves);
145	for(Standard_Integer i = 1; i <= myNbCurves; i++) {
146	Handle(Geom2d_OffsetCurve) NewOffsetCurve = new Geom2d_OffsetCurve(spc.GetCurves()->Value(i),Offset);
147	myResultingCurves->SetValue(i,NewOffsetCurve);
148	}
149	myStatus \|= spc.myStatus;
150	return;
151	}
152
153	myNbCurves = mySplitValues->Length() -1;
154	myResultingCurves=new TColGeom2d_HArray1OfCurve (1,myNbCurves);
155	if(myNbCurves ==1) {
156	Standard_Boolean filled = Standard_True;
157	if ( Abs ( myCurve->FirstParameter() - First ) < Precision::PConfusion() &&
158	Abs ( myCurve->LastParameter() - Last ) < Precision::PConfusion() )
159	myResultingCurves->SetValue(1,myCurve);
160
161	else if ( ! Segment \|\| (!myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)) &&
162	!myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve))) \|\| ! Status ( ShapeExtend_DONE2 ) ) {
163	if(myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)) \|\|
164	myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve) )) {
165	Handle(Geom2d_Curve) theNewCurve = Handle(Geom2d_Curve)::DownCast(myCurve->Copy());
166	try {
167	OCC_CATCH_SIGNALS
168	if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)))
169	Handle(Geom2d_BSplineCurve)::DownCast(theNewCurve)->Segment (First, Last);
170	else if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve)))
171	Handle(Geom2d_BezierCurve)::DownCast(theNewCurve)->Segment (First, Last);
172	}
173	catch (Standard_Failure) {
174	#ifdef DEB
175	cout << "Warning: ShapeUpgrade_Split2dCurve::Build(): Exception in Segment :";
176	Standard_Failure::Caught()->Print(cout); cout << endl;
177	#endif
178	theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),First,Last);
179	}
180	myResultingCurves->SetValue (1, theNewCurve);
181
182	}
183	else {
184	Handle(Geom2d_TrimmedCurve) theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),First,Last);
185	myResultingCurves->SetValue (1, theNewCurve);
186	}
187	}
188	else filled = Standard_False;
189	if ( filled ) return;
190	}
191
192
193	if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve))) {
194	Handle(Geom2d_BSplineCurve) BsCurve = Handle(Geom2d_BSplineCurve)::DownCast(myCurve->Copy());
195	Standard_Integer FirstInd =BsCurve->FirstUKnotIndex(),
196	LastInd = BsCurve->LastUKnotIndex();
197	Standard_Integer j = FirstInd;
198	for(Standard_Integer ii =1 ; ii <= mySplitValues->Length(); ii++) {
199	Standard_Real spval = mySplitValues->Value(ii);
200	for(; j <=LastInd;j++) {
201	if( spval > BsCurve->Knot(j) + Precision::PConfusion()) continue;
202	if( spval < BsCurve->Knot(j) - Precision::PConfusion()) break;
203	mySplitValues->SetValue(ii,BsCurve->Knot(j));
204	}
205	if(j == LastInd) break;
206	}
207
208	}
209	for (Standard_Integer i = 1; i <= myNbCurves; i++) {
210	// skl : in the next block I change "First","Last" to "Firstt","Lastt"
211	Standard_Real Firstt = mySplitValues->Value(i), Lastt = mySplitValues->Value(i+1);
212	Handle(Geom2d_Curve) theNewCurve;
213	if(Segment) {
214	// creates a copy of myCurve before to segment:
215	if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)) \|\|
216	myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve))) {
217	theNewCurve = Handle(Geom2d_Curve)::DownCast(myCurve->Copy());
218	try {
219	OCC_CATCH_SIGNALS
220	if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BSplineCurve)))
221	Handle(Geom2d_BSplineCurve)::DownCast(theNewCurve)->Segment (Firstt, Lastt);
222	else if (myCurve->IsKind (STANDARD_TYPE (Geom2d_BezierCurve)))
223	Handle(Geom2d_BezierCurve)::DownCast(theNewCurve)->Segment (Firstt, Lastt);
224	myStatus \|= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
225	}
226	catch (Standard_Failure) {
227	#ifdef DEB
228	cout << "Warning: ShapeUpgrade_Split2dCurve::Build(): Exception in Segment :";
229	Standard_Failure::Caught()->Print(cout); cout << endl;
230	#endif
231	theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),Firstt,Lastt);
232	}
233	}
234	else
235	theNewCurve = new Geom2d_TrimmedCurve(Handle(Geom2d_Curve)::DownCast(myCurve->Copy()),Firstt,Lastt);
236	}
237	myResultingCurves->SetValue (i, theNewCurve);
238	}
239	}
240
241	//=======================================================================
242	//function : GetCurves
243	//purpose :
244	//=======================================================================
245
246	const Handle(TColGeom2d_HArray1OfCurve)& ShapeUpgrade_SplitCurve2d::GetCurves() const
247	{
248	return myResultingCurves;
249	}