// Created on: 1993-11-08
// Created by: lbr
// Copyright (c) 1993-1999 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.





ApproxInt_WLine::ApproxInt_WLine(const TheCurve&    CurveXYZ,
				 const TheCurve2d&  CurveUV1,
				 const TheCurve2d&  CurveUV2) { 
  curvxyz = CurveXYZ;
  curvuv1 = CurveUV1;
  curvuv2 = CurveUV2;
}


ApproxInt_WLine::ApproxInt_WLine(const Handle(IntSurf_LineOn2S)& lin,
				 const Standard_Boolean )
     :linon2s(lin) 
{ 
}

Standard_Integer ApproxInt_WLine::NbPnts() const {
  if(!curvxyz.IsNull())
    return(curvxyz->NbPoles());
  if(!curvuv1.IsNull())
    return(curvuv1->NbPoles());
  if(!curvuv2.IsNull())
    return(curvuv2->NbPoles());
  return(linon2s->NbPoints());
}

IntSurf_PntOn2S ApproxInt_WLine::Point(const Standard_Integer Index) {
  if(!linon2s.IsNull()) { 
    if(linon2s->NbPoints()) { 
      return(linon2s->Value(Index));
    }
  }
  gp_Pnt2d P1,P2;
  gp_Pnt   P;
  if(!curvxyz.IsNull()) 
    P = curvxyz->Pole(Index);
  if(!curvuv1.IsNull())
    P1 = curvuv1->Pole(Index);
  if(!curvuv2.IsNull())
    P2 = curvuv2->Pole(Index);

  pnton2s.SetValue(P,
		   P1.X(),
		   P1.Y(),
		   P2.X(),
		   P2.Y());
  return(pnton2s);
}