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geant4/source/error_propagation/include/G4ErrorSurfaceTrajState.hh
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2016-06-09 17:01:34 +02:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
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// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
// $Id$
//
//
// Class description:
//
// Represents a trajectory state on a surface.
// It can be represented by the 5 variables:
// 1/p, v', w', v, w
// where v'=dv/du and w'=dw/du in an orthonormal coordinate system
// with axis u, v and w.
// History:
//
// - Created: P. Arce
// --------------------------------------------------------------------
#ifndef G4ErrorSurfaceTrajState_hh
#define G4ErrorSurfaceTrajState_hh
#include "globals.hh"
#include "G4ErrorTrajState.hh"
#include "G4ErrorSurfaceTrajParam.hh"
#include "G4ErrorFreeTrajState.hh"
#include "G4Point3D.hh"
#include "G4Vector3D.hh"
#include "G4Plane3D.hh"
class G4ErrorSurfaceTrajState : public G4ErrorTrajState
{
public: // with description
G4ErrorSurfaceTrajState( const G4String& partType, const G4Point3D& pos,
const G4Vector3D& mom, const G4Plane3D& plane,
const G4ErrorTrajErr& errmat = G4ErrorTrajErr(5,0) );
// Constructor by providing particle, position, momentum and
// G4Plane3D surface
G4ErrorSurfaceTrajState( const G4String& partType, const G4Point3D& pos,
const G4Vector3D& mom, const G4Vector3D& vecV,
const G4Vector3D& vecW,
const G4ErrorTrajErr& errmat = G4ErrorTrajErr(5,0) );
// Constructor by providing particle, position, momentum and
// two vectors on surface
G4ErrorSurfaceTrajState( G4ErrorFreeTrajState& tpSC, const G4Plane3D& plane );
// Constructor by providing G4ErrorFreeTrajState and G4Plane3D surface
G4ErrorSurfaceTrajState( G4ErrorFreeTrajState& tpSC, const G4Vector3D& vecV,
const G4Vector3D& vecW );
// Constructor by providing G4ErrorFreeTrajState and two vectors on surface
~G4ErrorSurfaceTrajState(){}
void BuildErrorMatrix( G4ErrorFreeTrajState& tpSC, const G4Vector3D& vecV,
const G4Vector3D& vecW );
// Build the error matrix from a free state plus the vectors of the surface
virtual void Dump( std::ostream& out = G4cout ) const;
friend
std::ostream& operator<<(std::ostream&, const G4ErrorSurfaceTrajState& ts);
// Set and Get methods
G4ErrorSurfaceTrajParam GetParameters() const
{ return fTrajParam; }
void SetParameters( const G4Point3D& pos, const G4Vector3D& mom,
const G4Vector3D& vecV, const G4Vector3D& vecW )
{
fPosition = pos;
fMomentum = mom;
fTrajParam.SetParameters( pos, mom, vecV, vecW );
}
void SetParameters( const G4Point3D& pos, const G4Vector3D& mom,
const G4Plane3D& plane )
{
fPosition = pos;
fMomentum = mom;
fTrajParam.SetParameters( pos, mom, plane );
}
G4Vector3D GetVectorV() const
{ return fTrajParam.GetVectorV(); }
G4Vector3D GetVectorW() const
{ return fTrajParam.GetVectorW(); }
virtual void SetPosition( const G4Point3D pos )
{ SetParameters( pos, fMomentum, GetVectorV(), GetVectorW() ); }
virtual void SetMomentum( const G4Vector3D& mom )
{ SetParameters( fPosition, mom, GetVectorV(), GetVectorW() ); }
private:
void Init();
// Define Trajectory State type and build charge
private:
G4ErrorSurfaceTrajParam fTrajParam;
};
#endif