[occt.git] / src / ShapeUpgrade / ShapeUpgrade_ConvertCurve2dToBezier.cxx

// Created on: 1999-05-13
// Created by: data exchange team
// Copyright (c) 1999-1999 Matra Datavision
// Copyright (c) 1999-2012 OPEN CASCADE SAS
//
// The content of this file is subject to the Open CASCADE Technology Public
// License Version 6.5 (the "License"). You may not use the content of this file
// except in compliance with the License. Please obtain a copy of the License
// at http://www.opencascade.org and read it completely before using this file.
//
// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
//
// The Original Code and all software distributed under the License is
// distributed on an "AS IS" basis, without warranty of any kind, and the
// Initial Developer hereby disclaims all such warranties, including without
// limitation, any warranties of merchantability, fitness for a particular
// purpose or non-infringement. Please see the License for the specific terms
// and conditions governing the rights and limitations under the License.


#include <ShapeUpgrade_ConvertCurve2dToBezier.ixx>
#include <Precision.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <Geom2d_BezierCurve.hxx>
#include <ShapeExtend.hxx>
#include <Geom2d_Line.hxx>
#include <TColgp_Array1OfPnt2d.hxx>
#include <Geom2d_BSplineCurve.hxx>
#include <Geom2d_Conic.hxx>
#include <Geom_Curve.hxx>
#include <Geom2dConvert_ApproxCurve.hxx>
#include <Geom2dConvert.hxx>
#include <Geom2dConvert_BSplineCurveToBezierCurve.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <TColGeom2d_HArray1OfCurve.hxx>
#include <GeomTools.hxx>
#include <ShapeCustom_Curve2d.hxx>

ShapeUpgrade_ConvertCurve2dToBezier::ShapeUpgrade_ConvertCurve2dToBezier()
{
  mySegments = new TColGeom2d_HSequenceOfCurve;
  mySplitParams = new TColStd_HSequenceOfReal;
}

static Handle(Geom2d_BezierCurve) MakeBezier2d(const Handle(Geom2d_Curve)& theCurve2d,
                                               const Standard_Real theFirst,
                                               const Standard_Real theLast)
{
  TColgp_Array1OfPnt2d poles(1,2);
  poles(1) = theCurve2d->Value(theFirst);
  poles(2) = theCurve2d->Value(theLast);
  Handle(Geom2d_BezierCurve) bezier = new Geom2d_BezierCurve(poles);
  return bezier;
}


//=======================================================================
//function : Compute
//purpose  : 
//=======================================================================

void ShapeUpgrade_ConvertCurve2dToBezier::Compute()
{
  mySegments->Clear();
  mySplitParams->Clear();
  Standard_Real precision = Precision::PConfusion();
  Standard_Real First =  mySplitValues->Value(1);
  Standard_Real Last = mySplitValues->Value(mySplitValues->Length());
  
  // PTV Try to create line2d from myCurve
  if ( myCurve->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) ||
       myCurve->IsKind(STANDARD_TYPE(Geom2d_BezierCurve)) )
  {
    // static function`s code getted from ShapeConvert
    Standard_Real tmpF, tmpL, aDeviation;
    Handle(Geom2d_Line) aTmpLine2d = 
      ShapeCustom_Curve2d::ConvertToLine2d(myCurve, First, Last, Precision::Approximation(),
                                               tmpF, tmpL, aDeviation);
    if (!aTmpLine2d.IsNull() && (aDeviation <= Precision::Approximation()) )
    {
      Handle(Geom2d_BezierCurve) bezier = MakeBezier2d(aTmpLine2d, tmpF, tmpL);
      mySegments->Append(bezier);
      mySplitParams->Append(First);
      mySplitParams->Append(Last);
      myNbCurves = mySplitValues->Length()-1;
      myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
      return;
    }
  }
  
  if(myCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
    Handle(Geom2d_TrimmedCurve) tmp = Handle(Geom2d_TrimmedCurve)::DownCast (myCurve);
    Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve();
    ShapeUpgrade_ConvertCurve2dToBezier converter;
    //converter.Init(BasCurve,Max(First,BasCurve->FirstParameter()),Min(Last,BasCurve->LastParameter())); //???
    converter.Init(BasCurve,First,Last);
    converter.SetSplitValues(mySplitValues);
    converter.Compute();
    mySplitValues->Clear();
    mySplitValues->ChangeSequence() = converter.SplitValues()->Sequence();
    myNbCurves = mySplitValues->Length()-1;
    myStatus |= converter.myStatus;
    mySegments->ChangeSequence() = converter.Segments()->Sequence();
    mySplitParams->ChangeSequence() = converter.SplitParams()->Sequence();
    return;
  }
  else if(myCurve->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))) {
    Handle(Geom2d_BezierCurve) bezier = Handle(Geom2d_BezierCurve)::DownCast (myCurve);
    myNbCurves = mySplitValues->Length()-1;
    mySplitParams->Append(First);
    mySplitParams->Append(Last);
    if(First < precision && Last > 1 - precision) {
      mySegments->Append(bezier);
      myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
    } else {
      Handle(Geom2d_BezierCurve) besNew = Handle(Geom2d_BezierCurve)::DownCast(bezier->Copy());
      besNew->Segment(First,Last);
      mySegments->Append(besNew);
      myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE2);
    }
    return;
  }
  else if(myCurve->IsKind(STANDARD_TYPE(Geom2d_Line))) {
    Handle(Geom2d_Line) aLine2d = Handle(Geom2d_Line)::DownCast(myCurve);
    Handle(Geom2d_BezierCurve) bezier = MakeBezier2d(aLine2d, First, Last);    
    mySegments->Append(bezier);
    mySplitParams->Append(First);
    mySplitParams->Append(Last);
    myNbCurves = mySplitValues->Length()-1;
    myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
    return;
  }
  else {
    Handle(Geom2d_BSplineCurve) aBSpline2d;
    Standard_Real Shift = 0.;
    if(myCurve->IsKind(STANDARD_TYPE(Geom2d_Conic))) {
      Handle(Geom2d_TrimmedCurve) tcurve = new Geom2d_TrimmedCurve(myCurve,First,Last); //protection agains parabols ets
      Geom2dConvert_ApproxCurve approx (tcurve, Precision::Approximation(), 
					GeomAbs_C1, 100, 6 );
      if ( approx.HasResult() )
	aBSpline2d = Handle(Geom2d_BSplineCurve)::DownCast(approx.Curve());
      else 
	aBSpline2d = Geom2dConvert::CurveToBSplineCurve(tcurve,Convert_QuasiAngular);
      
      Shift = First - aBSpline2d->FirstParameter();
      First = aBSpline2d->FirstParameter();
      Last = aBSpline2d->LastParameter();
    }
    else if(!myCurve->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))) {
      aBSpline2d = Geom2dConvert::CurveToBSplineCurve(myCurve,Convert_QuasiAngular);
    }
    else
      aBSpline2d = Handle(Geom2d_BSplineCurve)::DownCast(myCurve);
    
    Standard_Real bf = aBSpline2d->FirstParameter();
    Standard_Real bl = aBSpline2d->LastParameter(); 
    if(Abs(First-bf) < precision)
      First = bf;
    if(Abs(Last-bl) < precision)
      Last = bl;
    if(First < bf){
#ifdef DEB
      cout <<"Warning: The range of the edge exceeds the pcurve domain" <<endl;
#endif
      First = bf;
      mySplitValues->SetValue(1,First);
    }
    if(Last > bl){
#ifdef DEB
      cout <<"Warning: The range of the edge exceeds the pcurve domain" <<endl;
#endif
      Last = bl;
      mySplitValues->SetValue(mySplitValues->Length(),Last);
    }

    // PTV 20.12.2001 Try to simpify BSpline Curve
    ShapeCustom_Curve2d::SimplifyBSpline2d (aBSpline2d, Precision::Approximation());
    
    Geom2dConvert_BSplineCurveToBezierCurve tool(aBSpline2d,First,Last,precision);
    Standard_Integer nbArcs = tool.NbArcs();
    TColStd_Array1OfReal knots(1,nbArcs+1);
    tool.Knots(knots);
    mySplitParams->Append(First+Shift);
    Standard_Integer j; // svv Jan 10 2000 : porting on DEC
    
    Standard_Real newFirst = First+Shift;
    Standard_Real newLast = First+Shift;
    
    for(j = 1; j <=nbArcs; j++) {
      Standard_Real nextKnot = knots(j+1)+Shift;
      if(nextKnot - mySplitParams->Value(mySplitParams->Length()) > precision) {
        Handle(Geom2d_Curve) aCrv2d = tool.Arc(j);
        if ( aCrv2d->IsKind(STANDARD_TYPE(Geom2d_BezierCurve)) )
        {
          newFirst = newLast;
          newLast = nextKnot;
          Standard_Real tmpF, tmpL, aDeviation;
          Handle(Geom2d_Line) aTmpLine2d = 
	    ShapeCustom_Curve2d::ConvertToLine2d(aCrv2d, newFirst, newLast, Precision::Approximation(),
                                                     tmpF, tmpL, aDeviation);
          if (!aTmpLine2d.IsNull() && (aDeviation <= Precision::Approximation()) )
          {
            Handle(Geom2d_BezierCurve) bezier = MakeBezier2d(aBSpline2d, newFirst, newLast);
            mySegments->Append(bezier);
            mySplitParams->Append(newLast);
            continue;
          }
        }
        mySegments->Append(aCrv2d);
        mySplitParams->Append(nextKnot);
      }
    }
    
    First = mySplitValues->Value(1);
    for(j = 2; j <= mySplitValues->Length(); j++) {
      Last =  mySplitValues->Value(j);
      for(Standard_Integer i = 2; i <= nbArcs+1; i++) {
	Standard_Real valknot = knots(i)+Shift;
	if(valknot <= First + precision) continue;
	if(valknot >= Last - precision) break;
	mySplitValues->InsertBefore(j++,valknot);
      }
      First = Last;
    }
    myNbCurves = mySplitValues->Length()-1;
  }
  myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
}

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

void ShapeUpgrade_ConvertCurve2dToBezier::Build(const Standard_Boolean /*Segment*/)
{
  Standard_Real prec = Precision::PConfusion();
  Standard_Integer nb = mySplitValues->Length();
  myResultingCurves =  new TColGeom2d_HArray1OfCurve (1,nb-1);
  Standard_Real prevPar =0.;
  Standard_Integer j=2;
  for(Standard_Integer i = 2; i <= nb; i++) {
    Standard_Real par = mySplitValues->Value(i);
    for(; j<= mySplitParams->Length(); j++) 
      if(mySplitParams->Value(j)+prec > par)
	break;
      else
	prevPar = 0.;

    Handle(Geom2d_BezierCurve) bes = Handle(Geom2d_BezierCurve)
      ::DownCast(mySegments->Value(j-1)->Copy());
    Standard_Real uFact = mySplitParams->Value(j) - mySplitParams->Value(j-1);
    Standard_Real pp = mySplitValues->Value(i-1);
    Standard_Real length = (par - pp)/uFact;
    bes->Segment(prevPar, prevPar+length);
    prevPar += length;
    myResultingCurves->SetValue(i-1,bes);
  }
}

//=======================================================================
//function : Segments
//purpose  : 
//=======================================================================

Handle(TColGeom2d_HSequenceOfCurve) ShapeUpgrade_ConvertCurve2dToBezier::Segments() const
{
  return mySegments;
}

//=======================================================================
//function : SplitParams
//purpose  : 
//=======================================================================

Handle(TColStd_HSequenceOfReal) ShapeUpgrade_ConvertCurve2dToBezier::SplitParams() const
{
  return mySplitParams;
}
Commit	Line	Data
b311480e	1	// Created on: 1999-05-13
	2	// Created by: data exchange team
	3	// Copyright (c) 1999-1999 Matra Datavision
	4	// Copyright (c) 1999-2012 OPEN CASCADE SAS
	5	//
	6	// The content of this file is subject to the Open CASCADE Technology Public
	7	// License Version 6.5 (the "License"). You may not use the content of this file
	8	// except in compliance with the License. Please obtain a copy of the License
	9	// at http://www.opencascade.org and read it completely before using this file.
	10	//
	11	// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
	12	// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
	13	//
	14	// The Original Code and all software distributed under the License is
	15	// distributed on an "AS IS" basis, without warranty of any kind, and the
	16	// Initial Developer hereby disclaims all such warranties, including without
	17	// limitation, any warranties of merchantability, fitness for a particular
	18	// purpose or non-infringement. Please see the License for the specific terms
	19	// and conditions governing the rights and limitations under the License.
	20
7fd59977	21
	22
	23	#include <ShapeUpgrade_ConvertCurve2dToBezier.ixx>
	24	#include <Precision.hxx>
	25	#include <Geom2d_TrimmedCurve.hxx>
	26	#include <Geom2d_BezierCurve.hxx>
	27	#include <ShapeExtend.hxx>
	28	#include <Geom2d_Line.hxx>
	29	#include <TColgp_Array1OfPnt2d.hxx>
	30	#include <Geom2d_BSplineCurve.hxx>
	31	#include <Geom2d_Conic.hxx>
	32	#include <Geom_Curve.hxx>
	33	#include <Geom2dConvert_ApproxCurve.hxx>
	34	#include <Geom2dConvert.hxx>
	35	#include <Geom2dConvert_BSplineCurveToBezierCurve.hxx>
	36	#include <TColStd_Array1OfReal.hxx>
	37	#include <TColGeom2d_HArray1OfCurve.hxx>
	38	#include <GeomTools.hxx>
	39	#include <ShapeCustom_Curve2d.hxx>
	40
	41	ShapeUpgrade_ConvertCurve2dToBezier::ShapeUpgrade_ConvertCurve2dToBezier()
	42	{
	43	mySegments = new TColGeom2d_HSequenceOfCurve;
	44	mySplitParams = new TColStd_HSequenceOfReal;
	45	}
	46
	47	static Handle(Geom2d_BezierCurve) MakeBezier2d(const Handle(Geom2d_Curve)& theCurve2d,
	48	const Standard_Real theFirst,
	49	const Standard_Real theLast)
	50	{
	51	TColgp_Array1OfPnt2d poles(1,2);
	52	poles(1) = theCurve2d->Value(theFirst);
	53	poles(2) = theCurve2d->Value(theLast);
	54	Handle(Geom2d_BezierCurve) bezier = new Geom2d_BezierCurve(poles);
	55	return bezier;
	56	}
	57
	58
	59	//=======================================================================
	60	//function : Compute
	61	//purpose :
	62	//=======================================================================
	63
	64	void ShapeUpgrade_ConvertCurve2dToBezier::Compute()
	65	{
	66	mySegments->Clear();
	67	mySplitParams->Clear();
	68	Standard_Real precision = Precision::PConfusion();
	69	Standard_Real First = mySplitValues->Value(1);
	70	Standard_Real Last = mySplitValues->Value(mySplitValues->Length());
	71
	72	// PTV Try to create line2d from myCurve
	73	if ( myCurve->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) \|\|
	74	myCurve->IsKind(STANDARD_TYPE(Geom2d_BezierCurve)) )
	75	{
	76	// static function`s code getted from ShapeConvert
	77	Standard_Real tmpF, tmpL, aDeviation;
	78	Handle(Geom2d_Line) aTmpLine2d =
	79	ShapeCustom_Curve2d::ConvertToLine2d(myCurve, First, Last, Precision::Approximation(),
	80	tmpF, tmpL, aDeviation);
	81	if (!aTmpLine2d.IsNull() && (aDeviation <= Precision::Approximation()) )
	82	{
	83	Handle(Geom2d_BezierCurve) bezier = MakeBezier2d(aTmpLine2d, tmpF, tmpL);
	84	mySegments->Append(bezier);
85	mySplitParams->Append(First);
86	mySplitParams->Append(Last);
87	myNbCurves = mySplitValues->Length()-1;
88	myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
89	return;
90	}
91	}
92
93	if(myCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
94	Handle(Geom2d_TrimmedCurve) tmp = Handle(Geom2d_TrimmedCurve)::DownCast (myCurve);
95	Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve();
96	ShapeUpgrade_ConvertCurve2dToBezier converter;
97	//converter.Init(BasCurve,Max(First,BasCurve->FirstParameter()),Min(Last,BasCurve->LastParameter())); //???
98	converter.Init(BasCurve,First,Last);
99	converter.SetSplitValues(mySplitValues);
100	converter.Compute();
101	mySplitValues->Clear();
102	mySplitValues->ChangeSequence() = converter.SplitValues()->Sequence();
103	myNbCurves = mySplitValues->Length()-1;
104	myStatus \|= converter.myStatus;
105	mySegments->ChangeSequence() = converter.Segments()->Sequence();
106	mySplitParams->ChangeSequence() = converter.SplitParams()->Sequence();
107	return;
108	}
109	else if(myCurve->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))) {
110	Handle(Geom2d_BezierCurve) bezier = Handle(Geom2d_BezierCurve)::DownCast (myCurve);
111	myNbCurves = mySplitValues->Length()-1;
112	mySplitParams->Append(First);
113	mySplitParams->Append(Last);
114	if(First < precision && Last > 1 - precision) {
115	mySegments->Append(bezier);
116	myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
117	} else {
118	Handle(Geom2d_BezierCurve) besNew = Handle(Geom2d_BezierCurve)::DownCast(bezier->Copy());
119	besNew->Segment(First,Last);
120	mySegments->Append(besNew);
121	myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE2);
122	}
123	return;
124	}
125	else if(myCurve->IsKind(STANDARD_TYPE(Geom2d_Line))) {
126	Handle(Geom2d_Line) aLine2d = Handle(Geom2d_Line)::DownCast(myCurve);
127	Handle(Geom2d_BezierCurve) bezier = MakeBezier2d(aLine2d, First, Last);
128	mySegments->Append(bezier);
129	mySplitParams->Append(First);
130	mySplitParams->Append(Last);
131	myNbCurves = mySplitValues->Length()-1;
132	myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
133	return;
134	}
135	else {
136	Handle(Geom2d_BSplineCurve) aBSpline2d;
137	Standard_Real Shift = 0.;
138	if(myCurve->IsKind(STANDARD_TYPE(Geom2d_Conic))) {
139	Handle(Geom2d_TrimmedCurve) tcurve = new Geom2d_TrimmedCurve(myCurve,First,Last); //protection agains parabols ets
140	Geom2dConvert_ApproxCurve approx (tcurve, Precision::Approximation(),
141	GeomAbs_C1, 100, 6 );
142	if ( approx.HasResult() )
143	aBSpline2d = Handle(Geom2d_BSplineCurve)::DownCast(approx.Curve());
144	else
145	aBSpline2d = Geom2dConvert::CurveToBSplineCurve(tcurve,Convert_QuasiAngular);
146
147	Shift = First - aBSpline2d->FirstParameter();
148	First = aBSpline2d->FirstParameter();
149	Last = aBSpline2d->LastParameter();
150	}
151	else if(!myCurve->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))) {
152	aBSpline2d = Geom2dConvert::CurveToBSplineCurve(myCurve,Convert_QuasiAngular);
153	}
154	else
155	aBSpline2d = Handle(Geom2d_BSplineCurve)::DownCast(myCurve);
156
157	Standard_Real bf = aBSpline2d->FirstParameter();
158	Standard_Real bl = aBSpline2d->LastParameter();
159	if(Abs(First-bf) < precision)
160	First = bf;
161	if(Abs(Last-bl) < precision)
162	Last = bl;
163	if(First < bf){
164	#ifdef DEB
165	cout <<"Warning: The range of the edge exceeds the pcurve domain" <<endl;
166	#endif
167	First = bf;
168	mySplitValues->SetValue(1,First);
169	}
170	if(Last > bl){
171	#ifdef DEB
172	cout <<"Warning: The range of the edge exceeds the pcurve domain" <<endl;
173	#endif
174	Last = bl;
175	mySplitValues->SetValue(mySplitValues->Length(),Last);
176	}
177
178	// PTV 20.12.2001 Try to simpify BSpline Curve
179	ShapeCustom_Curve2d::SimplifyBSpline2d (aBSpline2d, Precision::Approximation());
180
181	Geom2dConvert_BSplineCurveToBezierCurve tool(aBSpline2d,First,Last,precision);
182	Standard_Integer nbArcs = tool.NbArcs();
183	TColStd_Array1OfReal knots(1,nbArcs+1);
184	tool.Knots(knots);
185	mySplitParams->Append(First+Shift);
186	Standard_Integer j; // svv Jan 10 2000 : porting on DEC
187
188	Standard_Real newFirst = First+Shift;
189	Standard_Real newLast = First+Shift;
190
191	for(j = 1; j <=nbArcs; j++) {
192	Standard_Real nextKnot = knots(j+1)+Shift;
193	if(nextKnot - mySplitParams->Value(mySplitParams->Length()) > precision) {
194	Handle(Geom2d_Curve) aCrv2d = tool.Arc(j);
195	if ( aCrv2d->IsKind(STANDARD_TYPE(Geom2d_BezierCurve)) )
196	{
197	newFirst = newLast;
198	newLast = nextKnot;
199	Standard_Real tmpF, tmpL, aDeviation;
200	Handle(Geom2d_Line) aTmpLine2d =
201	ShapeCustom_Curve2d::ConvertToLine2d(aCrv2d, newFirst, newLast, Precision::Approximation(),
202	tmpF, tmpL, aDeviation);
203	if (!aTmpLine2d.IsNull() && (aDeviation <= Precision::Approximation()) )
204	{
205	Handle(Geom2d_BezierCurve) bezier = MakeBezier2d(aBSpline2d, newFirst, newLast);
206	mySegments->Append(bezier);
207	mySplitParams->Append(newLast);
208	continue;
209	}
210	}
211	mySegments->Append(aCrv2d);
212	mySplitParams->Append(nextKnot);
213	}
214	}
215
216	First = mySplitValues->Value(1);
217	for(j = 2; j <= mySplitValues->Length(); j++) {
218	Last = mySplitValues->Value(j);
219	for(Standard_Integer i = 2; i <= nbArcs+1; i++) {
220	Standard_Real valknot = knots(i)+Shift;
221	if(valknot <= First + precision) continue;
222	if(valknot >= Last - precision) break;
223	mySplitValues->InsertBefore(j++,valknot);
224	}
225	First = Last;
226	}
227	myNbCurves = mySplitValues->Length()-1;
228	}
229	myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
230	}
231
232	//=======================================================================
233	//function : Build
234	//purpose :
235	//=======================================================================
236
237	void ShapeUpgrade_ConvertCurve2dToBezier::Build(const Standard_Boolean /Segment/)
238	{
239	Standard_Real prec = Precision::PConfusion();
240	Standard_Integer nb = mySplitValues->Length();
241	myResultingCurves = new TColGeom2d_HArray1OfCurve (1,nb-1);
242	Standard_Real prevPar =0.;
243	Standard_Integer j=2;
244	for(Standard_Integer i = 2; i <= nb; i++) {
245	Standard_Real par = mySplitValues->Value(i);
246	for(; j<= mySplitParams->Length(); j++)
247	if(mySplitParams->Value(j)+prec > par)
248	break;
249	else
250	prevPar = 0.;
251
252	Handle(Geom2d_BezierCurve) bes = Handle(Geom2d_BezierCurve)
253	::DownCast(mySegments->Value(j-1)->Copy());
254	Standard_Real uFact = mySplitParams->Value(j) - mySplitParams->Value(j-1);
255	Standard_Real pp = mySplitValues->Value(i-1);
256	Standard_Real length = (par - pp)/uFact;
257	bes->Segment(prevPar, prevPar+length);
258	prevPar += length;
259	myResultingCurves->SetValue(i-1,bes);
260	}
261	}
262
263	//=======================================================================
264	//function : Segments
265	//purpose :
266	//=======================================================================
267
268	Handle(TColGeom2d_HSequenceOfCurve) ShapeUpgrade_ConvertCurve2dToBezier::Segments() const
269	{
270	return mySegments;
271	}
272
273	//=======================================================================
274	//function : SplitParams
275	//purpose :
276	//=======================================================================
277
278	Handle(TColStd_HSequenceOfReal) ShapeUpgrade_ConvertCurve2dToBezier::SplitParams() const
279	{
280	return mySplitParams;
281	}