Gabriele Cosmo
150 lines
2.8 KiB
Plaintext
150 lines
2.8 KiB
Plaintext
// This code implementation is the intellectual property of
|
|
// the GEANT4 collaboration.
|
|
//
|
|
// By copying, distributing or modifying the Program (or any work
|
|
// based on the Program) you indicate your acceptance of this statement,
|
|
// and all its terms.
|
|
//
|
|
// $Id: G4Ray.icc,v 1.4 2000/11/08 14:22:03 gcosmo Exp $
|
|
// GEANT4 tag $Name: geant4-03-00 $
|
|
//
|
|
// --------------------------------------------------------------------
|
|
// GEANT 4 inline definitions file
|
|
//
|
|
// G4Ray.icc
|
|
//
|
|
// Implementation of inline methods of G4Ray
|
|
// --------------------------------------------------------------------
|
|
|
|
inline
|
|
G4Point3D G4Ray::GetPoint(G4double i) const
|
|
{
|
|
return G4Point3D( start+i*dir );
|
|
}
|
|
|
|
inline
|
|
G4double G4Ray::GetPPoint(const G4Point3D& p) const
|
|
{
|
|
// |dir|==1
|
|
return (p-start)*dir;
|
|
}
|
|
|
|
inline
|
|
const G4Vector3D& G4Ray::GetDir() const
|
|
{
|
|
return dir;
|
|
}
|
|
|
|
inline
|
|
const G4Point3D& G4Ray::GetStart() const
|
|
{
|
|
return start;
|
|
}
|
|
|
|
inline
|
|
void G4Ray::SetDir(const G4Vector3D& dir0)
|
|
{
|
|
dir= dir0.unit();
|
|
}
|
|
|
|
inline
|
|
void G4Ray::SetStart(const G4Point3D& start0)
|
|
{
|
|
start= start0;
|
|
}
|
|
|
|
inline
|
|
void G4Ray::Init(const G4Point3D& start0, const G4Vector3D& dir0)
|
|
{
|
|
start= start0;
|
|
dir= dir0;
|
|
RayCheck();
|
|
CreatePlanes();
|
|
}
|
|
|
|
inline
|
|
G4double G4Ray::P2(G4double x) const
|
|
{
|
|
return(x*x);
|
|
}
|
|
|
|
inline
|
|
G4int G4Ray::NearZero(G4double val, G4double epsilon) const
|
|
{
|
|
return ( ((val) > -epsilon) && ((val) < epsilon) );
|
|
}
|
|
|
|
inline
|
|
void G4Ray::Vcross(G4Plane &a, const G4Vector3D &b, const G4Vector3D &c)
|
|
{
|
|
a.a = b.y() * c.z() - b.z() * c.y() ;
|
|
a.b = b.z() * c.x() - b.x() * c.z() ;
|
|
a.c = b.x() * c.y() - b.y() * c.x() ;
|
|
}
|
|
|
|
inline
|
|
void G4Ray::Vcross(G4Vector3D &a, const G4Vector3D &b, const G4Vector3D &c)
|
|
{
|
|
a.setX(b.y() * c.z() - b.z() * c.y()) ;
|
|
a.setY(b.z() * c.x() - b.x() * c.z()) ;
|
|
a.setZ(b.x() * c.y() - b.y() * c.x()) ;
|
|
}
|
|
|
|
inline
|
|
void G4Ray::Vmove(G4Point3D &a, const G4Point3D &b)
|
|
{
|
|
a.setX(b.x());
|
|
a.setY(b.y());
|
|
a.setZ(b.z());
|
|
}
|
|
|
|
inline
|
|
void G4Ray::Vadd2(G4Point3D &a, const G4Point3D &b, const G4Vector3D &c)
|
|
{
|
|
a.setX(b.x() + c.x()) ;
|
|
a.setY(b.y() + c.y()) ;
|
|
a.setZ(b.z() + c.z()) ;
|
|
}
|
|
|
|
inline
|
|
void G4Ray::Vsub2(G4Vector3D &a, const G4Point3D &b, const G4Point3D &c)
|
|
{
|
|
a.setX(b.x() - c.x());
|
|
a.setY(b.y() - c.y());
|
|
a.setZ(b.z() - c.z());
|
|
}
|
|
|
|
inline
|
|
void G4Ray::Vsetall(G4Vector3D &a, G4double s)
|
|
{
|
|
a.setX(s); a.setY(s); a.setZ(s);
|
|
}
|
|
|
|
inline
|
|
void G4Ray::Vscale(G4Plane& a, const G4Plane& b, G4double c)
|
|
{
|
|
a.a = b.a * c;
|
|
a.b = b.b * c;
|
|
a.c = b.c * c;
|
|
}
|
|
|
|
inline
|
|
G4double G4Ray::Vdot(const G4Plane &a, const G4Point3D &b)
|
|
{
|
|
return (a.a * b.x() +
|
|
a.b * b.y() +
|
|
a.c * b.z());
|
|
}
|
|
|
|
inline
|
|
G4double G4Ray::Magsq(const G4Plane &a)
|
|
{
|
|
return ( a.a * a.a + a.b * a.b + a.c *a.c );
|
|
}
|
|
|
|
inline
|
|
G4double G4Ray::Magnitude(const G4Plane &a)
|
|
{
|
|
return (sqrt( Magsq( a )) );
|
|
}
|