G4ErrorPlaneSurfaceTarget Class Reference

G4ErrorPlaneSurfaceTarget is an utility class for limiting the step when a track reaches a plane surface. More...

#include <G4ErrorPlaneSurfaceTarget.hh>

Inheritance diagram for G4ErrorPlaneSurfaceTarget:

Public Member Functions
	G4ErrorPlaneSurfaceTarget (G4double a=0., G4double b=0., G4double c=0., G4double d=0.)
	G4ErrorPlaneSurfaceTarget (const G4Normal3D &n, const G4Point3D &p)
	G4ErrorPlaneSurfaceTarget (const G4Point3D &p1, const G4Point3D &p2, const G4Point3D &p3)
	~G4ErrorPlaneSurfaceTarget () override=default
G4ThreeVector	Intersect (const G4ThreeVector &point, const G4ThreeVector &direc) const
G4double	GetDistanceFromPoint (const G4ThreeVector &point, const G4ThreeVector &direc) const override
G4double	GetDistanceFromPoint (const G4ThreeVector &pt) const override
G4Plane3D	GetTangentPlane (const G4ThreeVector &point) const override
void	Dump (const G4String &msg) const override
Public Member Functions inherited from G4ErrorSurfaceTarget
	G4ErrorSurfaceTarget ()=default
	~G4ErrorSurfaceTarget () override=default
Public Member Functions inherited from G4ErrorTanPlaneTarget
	G4ErrorTanPlaneTarget ()=default
	~G4ErrorTanPlaneTarget () override=default
Public Member Functions inherited from G4ErrorTarget
	G4ErrorTarget ()=default
virtual	~G4ErrorTarget ()=default
virtual G4bool	TargetReached (const G4Step *)
G4ErrorTargetType	GetType () const

Additional Inherited Members
Protected Attributes inherited from G4ErrorTarget
G4ErrorTargetType	theType {G4ErrorTarget_GeomVolume}
Related Symbols inherited from HepGeom::Plane3D< G4double >
std::ostream &	operator<< (std::ostream &os, const Plane3D< float > &p)
std::ostream &	operator<< (std::ostream &os, const Plane3D< double > &p)

Detailed Description

G4ErrorPlaneSurfaceTarget is an utility class for limiting the step when a track reaches a plane surface.

Definition at line 49 of file G4ErrorPlaneSurfaceTarget.hh.

Constructor & Destructor Documentation

G4ErrorPlaneSurfaceTarget() [1/3]

G4ErrorPlaneSurfaceTarget::G4ErrorPlaneSurfaceTarget	(	G4double	a = 0.,
		G4double	b = 0.,
		G4double	c = 0.,
		G4double	d = 0. )

Constructor for G4ErrorPlaneSurfaceTarget. It constructs a plane by parameters: ax+by+cz+d = 0.

Definition at line 42 of file G4ErrorPlaneSurfaceTarget.cc.

  : G4Plane3D( aa, ab, ac, ad ) 
{
  theType = G4ErrorTarget_PlaneSurface;
 
#ifdef G4VERBOSE
  if(G4ErrorPropagatorData::verbose() >= 2 )
  { 
    Dump( " $$$ creating G4ErrorPlaneSurfaceTarget from parameters");
  }
#endif
}

G4ErrorPlaneSurfaceTarget() [2/3]

G4ErrorPlaneSurfaceTarget::G4ErrorPlaneSurfaceTarget	(	const G4Normal3D &	n,
		const G4Point3D &	p )

Constructor for G4ErrorPlaneSurfaceTarget. It constructs a plane by point 'p' and normal 'n'.

Definition at line 58 of file G4ErrorPlaneSurfaceTarget.cc.

  : G4Plane3D( norm, pt ) 
{
  theType = G4ErrorTarget_PlaneSurface;
 
#ifdef G4VERBOSE
  if(G4ErrorPropagatorData::verbose() >= 2 )
  { 
    Dump( " $$$ creating G4ErrorPlaneSurfaceTarget from point and normal");
  }
#endif
}

G4ErrorPlaneSurfaceTarget() [3/3]

G4ErrorPlaneSurfaceTarget::G4ErrorPlaneSurfaceTarget	(	const G4Point3D &	p1,
		const G4Point3D &	p2,
		const G4Point3D &	p3 )

Constructor for G4ErrorPlaneSurfaceTarget. It constructs a plane by three points, 'p1', 'p2', 'p3'.

Definition at line 74 of file G4ErrorPlaneSurfaceTarget.cc.

  : G4Plane3D( p1, p2, p3 )
{
  theType = G4ErrorTarget_PlaneSurface;
 
#ifdef G4VERBOSE
  if(G4ErrorPropagatorData::verbose() >= 2 )
  { 
    Dump( " $$$ creating G4ErrorPlaneSurfaceTarget from three points");
  }
#endif
}

~G4ErrorPlaneSurfaceTarget()

G4ErrorPlaneSurfaceTarget::~G4ErrorPlaneSurfaceTarget ( )

overridedefault

Default Destructor.

Member Function Documentation

Dump()

void G4ErrorPlaneSurfaceTarget::Dump ( const G4String & msg ) const

overridevirtual

Dumps to standard output the surface parameters.

Implements G4ErrorSurfaceTarget.

Definition at line 166 of file G4ErrorPlaneSurfaceTarget.cc.

{
  G4cout << msg << " point = " << point()
                << " normal = " << normal() << G4endl;
}

Referenced by G4ErrorPlaneSurfaceTarget(), G4ErrorPlaneSurfaceTarget(), and G4ErrorPlaneSurfaceTarget().

GetDistanceFromPoint() [1/2]

G4double G4ErrorPlaneSurfaceTarget::GetDistanceFromPoint ( const G4ThreeVector & point, const G4ThreeVector & direc ) const

overridevirtual

Computes the distance from a point to the surface in a given direction.

Parameters

[in]	point	The point of reference.
[in]	direc	The direction vector.

Returns

The distance value.

Implements G4ErrorSurfaceTarget.

Definition at line 111 of file G4ErrorPlaneSurfaceTarget.cc.

{
  if( std::fabs( dir.mag() -1. ) > 1.E-6 )
  {
    std::ostringstream message;
    message << "Direction is not a unit vector: " << dir << " !";
    G4Exception("G4ErrorPlaneSurfaceTarget::GetDistanceFromPoint()",
                "GeomMgt1002", JustWarning, message);
  }
  G4double dist = -(a_ * pt.x() + b_ * pt.y() + c_ * pt.z() + d_)
                 / (a_ * dir.x() + b_ * dir.y() + c_ * dir.z() );
 
#ifdef G4VERBOSE
  if(G4ErrorPropagatorData::verbose() >= 3 )
  {
    G4cout << " G4ErrorPlaneSurfaceTarget::GetDistanceFromPoint()" << G4endl
           << "   Point: " << pt << ", Direction: " << dir << G4endl
           << "   Distance: " << dist << G4endl;
  }
#endif
  
  return dist;
}

Referenced by Intersect().

GetDistanceFromPoint() [2/2]

G4double G4ErrorPlaneSurfaceTarget::GetDistanceFromPoint ( const G4ThreeVector & pt ) const

overridevirtual

Computes the minimal distance from a point to surface.

Parameters

[in]

point

The point of reference.

Returns

The distance value.

Implements G4ErrorSurfaceTarget.

Definition at line 138 of file G4ErrorPlaneSurfaceTarget.cc.

{
  G4ThreeVector vec = point() - pt;
  G4double dist = std::fabs(vec * normal() / normal().mag());
  
#ifdef G4VERBOSE
  if(G4ErrorPropagatorData::verbose() >= 3 )
  {
    G4cout << " G4ErrorPlaneSurfaceTarget::GetDistanceFromPoint()" << G4endl
           << "   Point: " << pt << G4endl
           << "   Distance: " << dist << G4endl;
  }
#endif
 
  return dist;
}

GetTangentPlane()

G4Plane3D G4ErrorPlaneSurfaceTarget::GetTangentPlane ( const G4ThreeVector & point ) const

overridevirtual

Computes the plane tangent to itself at a given point.

Parameters

[in]

point

The point of reference.

Returns

The tangent plane.

Implements G4ErrorSurfaceTarget.

Definition at line 158 of file G4ErrorPlaneSurfaceTarget.cc.

{
  return *this;
}

Intersect()

G4ThreeVector G4ErrorPlaneSurfaceTarget::Intersect	(	const G4ThreeVector &	point,
		const G4ThreeVector &	direc ) const

Intersects the surface with the line given by point and direction.

Parameters

[in]	point	The point of reference.
[in]	direc	The direction vector.

Returns

The intersection point.

Definition at line 92 of file G4ErrorPlaneSurfaceTarget.cc.

{
  G4double lam = GetDistanceFromPoint( pt, dir );
  G4Point3D inters = pt + lam * dir;
 
#ifdef G4VERBOSE
  if(G4ErrorPropagatorData::verbose() >= 4 )
  { 
    G4cout << " $$$ creating G4ErrorPlaneSurfaceTarget::Intersect "
           << inters << G4endl;
  }
#endif
 
  return inters;
}

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The documentation for this class was generated from the following files:

• G4ErrorPlaneSurfaceTarget.hh
• G4ErrorPlaneSurfaceTarget.cc