// File:	IntCurve_PConicTool.cxx
// Created:	Mon Mar 30 17:35:40 1992
// Author:	Laurent BUCHARD
//		<lbr@topsn3>



#include <IntCurve_PConicTool.ixx>
#include <ElCLib.hxx>

//----------------------------------------------------------------------
gp_Pnt2d IntCurve_PConicTool::Value(const IntCurve_PConic& PConic,
				  const Standard_Real X) {
  switch(PConic.TypeCurve()) {

  case GeomAbs_Line:
    return(ElCLib::LineValue(X,PConic.Axis2().XAxis())); 


  case GeomAbs_Circle:
    return(ElCLib::CircleValue(X,PConic.Axis2(),PConic.Param1())); 


  case GeomAbs_Ellipse:
    return(ElCLib::EllipseValue(X,PConic.Axis2(),
			       PConic.Param1(),
			       PConic.Param2()));


  case GeomAbs_Parabola:
    return(ElCLib::ParabolaValue(X,PConic.Axis2(),PConic.Param1()));


  default:    //-- case GeomAbs_Hyperbola:
    return(ElCLib::HyperbolaValue(X,PConic.Axis2(),PConic.Param1(),
				 PConic.Param2()));

  }
}

//----------------------------------------------------------------------
void IntCurve_PConicTool::D1(const IntCurve_PConic& PConic,
			    const Standard_Real U,
			    gp_Pnt2d& Pt,
			    gp_Vec2d& Tan)  { 

  switch(PConic.TypeCurve()) {

  case GeomAbs_Line:
    ElCLib::LineD1(U,PConic.Axis2().XAxis(),Pt,Tan);
    break;

  case GeomAbs_Circle:
    ElCLib::CircleD1(U,PConic.Axis2(),PConic.Param1(),Pt,Tan);
    break;

  case GeomAbs_Ellipse:
    ElCLib::EllipseD1(U,PConic.Axis2(),PConic.Param1(),
		     PConic.Param2(),Pt,Tan);
    break;

  case GeomAbs_Parabola:
    ElCLib::ParabolaD1(U,PConic.Axis2(),PConic.Param1(),Pt,Tan);  
    break;

  case GeomAbs_Hyperbola:
    ElCLib::HyperbolaD1(U,PConic.Axis2(),PConic.Param1(),
		       PConic.Param2(),Pt,Tan);
    break;
#ifndef DEB
  default:
    break;
#endif
  }
}

//----------------------------------------------------------------------
void IntCurve_PConicTool::D2(const IntCurve_PConic& PConic,
			    const Standard_Real U,
			    gp_Pnt2d& Pt,
			    gp_Vec2d& Tan,
			    gp_Vec2d& Norm)  { 

  switch(PConic.TypeCurve()) {

  case GeomAbs_Line:
    Tan.SetCoord(0.0,0.0);
    ElCLib::LineD1(U,PConic.Axis2().XAxis(),Pt,Tan);
    break;

  case GeomAbs_Circle:
    ElCLib::CircleD2(U,PConic.Axis2(),PConic.Param1(),Pt,Tan,Norm);
    break;

  case GeomAbs_Ellipse:
    ElCLib::EllipseD2(U,PConic.Axis2(),PConic.Param1(),PConic.Param2(),
		     Pt,Tan,Norm);
    break;

  case GeomAbs_Parabola:
    ElCLib::ParabolaD2(U,PConic.Axis2(),PConic.Param1(),Pt,Tan,Norm);  
    break;

  case GeomAbs_Hyperbola:
    ElCLib::HyperbolaD2(U,PConic.Axis2(),PConic.Param1(),
		       PConic.Param2(),Pt,Tan,Norm);
    break;
#ifndef DEB
  default:
    break;
#endif
  }
} 


Standard_Real IntCurve_PConicTool::EpsX(const IntCurve_PConic& PConic) {
  return(PConic.EpsX());
}

Standard_Integer IntCurve_PConicTool::NbSamples(const IntCurve_PConic& PConic) {
  return(PConic.Accuracy());
}

//Standard_Integer IntCurve_PConicTool::NbSamples(const IntCurve_PConic& PConic,const Standard_Real U0,const Standard_Real U1) {
Standard_Integer IntCurve_PConicTool::NbSamples(const IntCurve_PConic& PConic,const Standard_Real ,const Standard_Real ) {
  return(PConic.Accuracy());
}