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//File gp_Parab2d.lxx
#include <Standard_ConstructionError.hxx>
inline gp_Parab2d::gp_Parab2d () :
focalLength(RealLast())
{ }
inline gp_Parab2d::gp_Parab2d (const gp_Ax22d& A,
const Standard_Real Focal) :
pos (A),
focalLength (Focal)
{ Standard_ConstructionError_Raise_if(Focal < 0.0,""); }
inline gp_Parab2d::gp_Parab2d (const gp_Ax2d& MirrorAxis,
const Standard_Real Focal,
const Standard_Boolean Sense) :
focalLength (Focal)
{
pos = gp_Ax22d(MirrorAxis,Sense);
Standard_ConstructionError_Raise_if(Focal < 0.0,"");
}
inline void gp_Parab2d::SetFocal (const Standard_Real Focal)
{
Standard_ConstructionError_Raise_if(Focal < 0.0,"");
focalLength = Focal;
}
inline void gp_Parab2d::SetLocation (const gp_Pnt2d& P)
{ pos.SetLocation(P); }
inline void gp_Parab2d::SetMirrorAxis (const gp_Ax2d& A)
{ pos.SetXAxis(A); }
inline void gp_Parab2d::SetAxis (const gp_Ax22d& A)
{ pos.SetAxis(A); }
inline gp_Ax2d gp_Parab2d::Directrix() const
{
gp_Pnt2d P (pos.Location().X() - focalLength * pos.XDirection().X(),
pos.Location().Y() - focalLength * pos.XDirection().Y() );
gp_Dir2d V (pos.YDirection().Reversed());
return gp_Ax2d (P, V);
}
inline Standard_Real gp_Parab2d::Focal() const
{ return focalLength; }
inline gp_Pnt2d gp_Parab2d::Focus() const
{
return gp_Pnt2d (pos.Location().X() + focalLength * pos.XDirection().X(),
pos.Location().Y() + focalLength * pos.XDirection().Y());
}
inline gp_Pnt2d gp_Parab2d::Location () const
{ return pos.Location(); }
inline gp_Ax2d gp_Parab2d::MirrorAxis () const
{ return pos.XAxis(); }
inline gp_Ax22d gp_Parab2d::Axis () const
{ return pos; }
inline Standard_Real gp_Parab2d::Parameter() const
{ return 2.0 * focalLength; }
inline void gp_Parab2d::Reverse()
{
gp_Dir2d Temp = pos.YDirection ();
Temp.Reverse ();
pos.SetAxis(gp_Ax22d(pos.Location(),pos.XDirection(),Temp));
}
inline gp_Parab2d gp_Parab2d::Reversed() const
{
gp_Parab2d P = *this;
gp_Dir2d Temp = pos.YDirection ();
Temp.Reverse ();
P.pos.SetAxis(gp_Ax22d(pos.Location(),pos.XDirection(),Temp));
return P;
}
inline Standard_Boolean gp_Parab2d::IsDirect() const
{ return (pos.XDirection().Crossed(pos.YDirection())) >= 0.0; }
inline void gp_Parab2d::Rotate (const gp_Pnt2d& P,
const Standard_Real Ang)
{pos.Rotate (P, Ang);}
inline gp_Parab2d gp_Parab2d::Rotated (const gp_Pnt2d& P,
const Standard_Real Ang) const
{
gp_Parab2d Prb = *this;
Prb.pos.Rotate (P, Ang);
return Prb;
}
inline void gp_Parab2d::Scale (const gp_Pnt2d& P,
const Standard_Real S)
{
focalLength *= S;
if (focalLength < 0) focalLength = - focalLength;
pos.Scale (P, S);
}
inline gp_Parab2d gp_Parab2d::Scaled (const gp_Pnt2d& P,
const Standard_Real S) const
{
gp_Parab2d Prb = *this;
Prb.focalLength *= S;
if (Prb.focalLength < 0) Prb.focalLength = - Prb.focalLength;
Prb.pos.Scale (P, S);
return Prb;
}
inline void gp_Parab2d::Transform (const gp_Trsf2d& T)
{
focalLength *= T.ScaleFactor();
if (focalLength < 0) focalLength = - focalLength;
pos.Transform (T);
}
inline gp_Parab2d gp_Parab2d::Transformed (const gp_Trsf2d& T) const
{
gp_Parab2d Prb = *this;
Prb.focalLength *= T.ScaleFactor();
if (Prb.focalLength < 0) Prb.focalLength = - Prb.focalLength;
Prb.pos.Transform (T);
return Prb;
}
inline void gp_Parab2d::Translate (const gp_Vec2d& V)
{ pos.Translate (V); }
inline gp_Parab2d gp_Parab2d::Translated (const gp_Vec2d& V) const
{
gp_Parab2d Prb = *this;
Prb.pos.Translate(V);
return Prb;
}
inline void gp_Parab2d::Translate (const gp_Pnt2d& P1,
const gp_Pnt2d& P2)
{ pos.Translate (P1, P2); }
inline gp_Parab2d gp_Parab2d::Translated (const gp_Pnt2d& P1,
const gp_Pnt2d& P2) const
{
gp_Parab2d Prb = *this;
Prb.pos.Translate (P1, P2);
return Prb;
}
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