/usr/include/opencascade/gp_Dir2d.lxx is in libopencascade-foundation-dev 6.5.0.dfsg-2build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Modif JCV 08/01/91 introduction classe XY dans le package gp
#include <Standard_ConstructionError.hxx>
#include <Standard_OutOfRange.hxx>
#include <gp_XY.hxx>
#include <gp_Ax2d.hxx>
#include <gp_Trsf2d.hxx>
inline gp_Dir2d::gp_Dir2d() : coord (1.,0.)
{
}
inline gp_Dir2d::gp_Dir2d (const gp_Vec2d& V)
{
const gp_XY& XY = V.XY();
Standard_Real X = XY.X();
Standard_Real Y = XY.Y();
Standard_Real D = sqrt(X * X + Y * Y);
Standard_ConstructionError_Raise_if (D <= gp::Resolution(), "");
coord.SetX(X / D);
coord.SetY(Y / D);
}
inline gp_Dir2d::gp_Dir2d (const gp_XY& XY)
{
Standard_Real X = XY.X();
Standard_Real Y = XY.Y();
Standard_Real D = sqrt(X * X + Y * Y);
Standard_ConstructionError_Raise_if (D <= gp::Resolution(), "");
coord.SetX(X / D);
coord.SetY(Y / D);
}
inline gp_Dir2d::gp_Dir2d (const Standard_Real Xv,
const Standard_Real Yv)
{
Standard_Real D = sqrt (Xv * Xv + Yv * Yv);
Standard_ConstructionError_Raise_if (D <= gp::Resolution(), "");
coord.SetX(Xv / D);
coord.SetY(Yv / D);
}
inline void gp_Dir2d::SetCoord (const Standard_Integer Index,
const Standard_Real Xi)
{
Standard_Real X = coord.X();
Standard_Real Y = coord.Y();
Standard_OutOfRange_Raise_if (Index < 1 || Index > 2, " ");
if (Index == 1) X = Xi;
else Y = Xi;
Standard_Real D = sqrt (X * X + Y * Y);
Standard_ConstructionError_Raise_if (D <= gp::Resolution(), "");
coord.SetX(X / D);
coord.SetY(Y / D);
}
inline void gp_Dir2d::SetCoord (const Standard_Real Xv,
const Standard_Real Yv)
{
Standard_Real D = sqrt (Xv * Xv + Yv * Yv);
Standard_ConstructionError_Raise_if (D <= gp::Resolution(), "");
coord.SetX(Xv / D);
coord.SetY(Yv / D);
}
inline void gp_Dir2d::SetX (const Standard_Real X)
{
Standard_Real Y = coord.Y();
Standard_Real D = sqrt (X * X + Y * Y);
Standard_ConstructionError_Raise_if (D <= gp::Resolution(), "");
coord.SetX(X / D);
coord.SetY(Y / D);
}
inline void gp_Dir2d::SetY (const Standard_Real Y)
{
Standard_Real X = coord.X();
Standard_Real D = sqrt (X * X + Y * Y);
Standard_ConstructionError_Raise_if (D <= gp::Resolution(), "");
coord.SetX(X / D);
coord.SetY(Y / D);
}
inline void gp_Dir2d::SetXY (const gp_XY& XY)
{
Standard_Real X = XY.X();
Standard_Real Y = XY.Y();
Standard_Real D = sqrt(X * X + Y * Y);
Standard_ConstructionError_Raise_if (D <= gp::Resolution(), "");
coord.SetX(X / D);
coord.SetY(Y / D);
}
inline Standard_Real gp_Dir2d::Coord (const Standard_Integer Index) const
{ return coord.Coord(Index); }
inline void gp_Dir2d::Coord(Standard_Real& Xv, Standard_Real& Yv) const
{ coord.Coord (Xv, Yv); }
inline Standard_Real gp_Dir2d::X() const
{ return coord.X() ; }
inline Standard_Real gp_Dir2d::Y() const
{ return coord.Y() ; }
inline const gp_XY& gp_Dir2d::XY () const
{ return coord; }
inline Standard_Boolean gp_Dir2d::IsEqual
(const gp_Dir2d& Other,
const Standard_Real AngularTolerance) const
{
Standard_Real Ang = Angle(Other);
if (Ang < 0) Ang = - Ang;
return Ang <= AngularTolerance;
}
inline Standard_Boolean gp_Dir2d::IsNormal
(const gp_Dir2d& Other,
const Standard_Real AngularTolerance) const
{
Standard_Real Ang = Angle(Other);
if (Ang < 0) Ang = - Ang;
Ang = Standard_PI / 2.0 - Ang;
if (Ang < 0) Ang = - Ang;
return Ang <= AngularTolerance;
}
inline Standard_Boolean gp_Dir2d::IsOpposite
(const gp_Dir2d& Other,
const Standard_Real AngularTolerance) const
{
Standard_Real Ang = Angle(Other);
if (Ang < 0) Ang = - Ang;
return Standard_PI - Ang <= AngularTolerance;
}
inline Standard_Boolean gp_Dir2d::IsParallel
(const gp_Dir2d& Other,
const Standard_Real AngularTolerance) const
{
Standard_Real Ang = Angle(Other);
if (Ang < 0) Ang = - Ang;
return Ang <= AngularTolerance || Standard_PI - Ang <= AngularTolerance;
}
inline Standard_Real gp_Dir2d::Crossed (const gp_Dir2d& Right) const
{ return coord.Crossed (Right.coord); }
inline Standard_Real gp_Dir2d::Dot (const gp_Dir2d& Other) const
{ return coord.Dot (Other.coord); }
inline void gp_Dir2d::Reverse()
{ coord.Reverse(); }
inline gp_Dir2d gp_Dir2d::Reversed() const
{
gp_Dir2d V = *this;
V.coord.Reverse ();
return V;
}
inline void gp_Dir2d::Rotate (const Standard_Real Ang)
{
gp_Trsf2d T;
T.SetRotation (gp_Pnt2d (0.0, 0.0), Ang);
coord.Multiply (T.HVectorialPart());
}
inline gp_Dir2d gp_Dir2d::Rotated (const Standard_Real Ang) const
{
gp_Dir2d V = *this;
V.Rotate (Ang);
return V;
}
inline gp_Dir2d gp_Dir2d::Transformed (const gp_Trsf2d& T) const
{
gp_Dir2d V = *this;
V.Transform (T);
return V;
}
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