Gabriele Cosmo
129 lines
4.6 KiB
C++
129 lines
4.6 KiB
C++
//
|
|
// ********************************************************************
|
|
// * 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 *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * 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. *
|
|
// ********************************************************************
|
|
//
|
|
// G4TUniformMagneticField
|
|
//
|
|
// Class description:
|
|
//
|
|
// Templated version of G4UniformMagneticField.
|
|
|
|
// Author: Josh Xie (CERN, Google Summer of Code 2014), June 2014
|
|
// Supervisors: Sandro Wenzel, John Apostolakis (CERN)
|
|
// --------------------------------------------------------------------
|
|
#ifndef G4TUniformMagneticField_HH
|
|
#define G4TUniformMagneticField_HH
|
|
|
|
#include "G4Types.hh"
|
|
#include "G4ThreeVector.hh"
|
|
#include "G4MagneticField.hh"
|
|
|
|
/**
|
|
* @brief G4TUniformMagneticField is a templated version of
|
|
* G4UniformMagneticField.
|
|
*/
|
|
|
|
class G4TUniformMagneticField : public G4MagneticField
|
|
{
|
|
public:
|
|
|
|
G4TUniformMagneticField(const G4ThreeVector& FieldVector )
|
|
// A field with value equal to FieldVector.
|
|
{
|
|
fFieldComponents[0] = FieldVector.x();
|
|
fFieldComponents[1] = FieldVector.y();
|
|
fFieldComponents[2] = FieldVector.z();
|
|
}
|
|
|
|
|
|
G4TUniformMagneticField(G4double vField,
|
|
G4double vTheta,
|
|
G4double vPhi )
|
|
{
|
|
if ( (vField<0) || (vTheta<0) || (vTheta>pi) || (vPhi<0) || (vPhi>twopi) )
|
|
{
|
|
G4Exception("G4TUniformMagneticField::G4TUniformMagneticField()",
|
|
"GeomField0002", FatalException, "Invalid parameters.") ;
|
|
}
|
|
fFieldComponents[0] = vField*std::sin(vTheta)*std::cos(vPhi) ;
|
|
fFieldComponents[1] = vField*std::sin(vTheta)*std::sin(vPhi) ;
|
|
fFieldComponents[2] = vField*std::cos(vTheta) ;
|
|
}
|
|
|
|
virtual ~G4TUniformMagneticField() = default;
|
|
|
|
G4TUniformMagneticField(const G4TUniformMagneticField &p)
|
|
: G4MagneticField(p)
|
|
{
|
|
for (G4int i=0; i<3; ++i)
|
|
fFieldComponents[i] = p.fFieldComponents[i];
|
|
}
|
|
|
|
G4TUniformMagneticField& operator = (const G4TUniformMagneticField &p)
|
|
// Copy constructor and assignment operator.
|
|
{
|
|
if (&p == this) return *this;
|
|
for (G4int i=0; i<3; ++i)
|
|
fFieldComponents[i] = p.fFieldComponents[i];
|
|
return *this;
|
|
}
|
|
|
|
inline void GetFieldValue(const G4double yTrack[4],
|
|
G4double *B) const
|
|
{
|
|
B[0]= fFieldComponents[0] ;
|
|
B[1]= fFieldComponents[1] ;
|
|
B[2]= fFieldComponents[2] ;
|
|
}
|
|
|
|
void SetFieldValue(const G4ThreeVector& newFieldVector)
|
|
{
|
|
fFieldComponents[0] = newFieldVector.x();
|
|
fFieldComponents[1] = newFieldVector.y();
|
|
fFieldComponents[2] = newFieldVector.z();
|
|
}
|
|
|
|
G4ThreeVector GetConstantFieldValue() const
|
|
{
|
|
G4ThreeVector B(fFieldComponents[0],
|
|
fFieldComponents[1],
|
|
fFieldComponents[2]);
|
|
return B;
|
|
}
|
|
// Return the field value
|
|
|
|
virtual G4TUniformMagneticField* Clone() const
|
|
{
|
|
return new G4TUniformMagneticField( G4ThreeVector(this->fFieldComponents[0],
|
|
this->fFieldComponents[1],
|
|
this->fFieldComponents[2]) );
|
|
}
|
|
|
|
private:
|
|
|
|
G4double fFieldComponents[3] ;
|
|
};
|
|
|
|
#endif
|