Gabriele Cosmo
72 lines
2.7 KiB
C++
72 lines
2.7 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4Field.hh,v 1.8 2003/11/05 10:35:55 japost Exp $
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// GEANT4 tag $Name: geant4-06-00-patch-01 $
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//
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//
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// class G4Field
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//
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// Class description:
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//
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// Abstract class for any kind of Field.
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// It allows any kind of field (vector, scalar, tensor and any set of them)
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// to be defined by implementing the inquiry function interface.
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// History:
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// - Created: John Apostolakis, 10.03.1997
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// -------------------------------------------------------------------
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#ifndef G4FIELD_HH
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#define G4FIELD_HH
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#include "G4Types.hh"
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class G4Field
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{
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public: // with description
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virtual void GetFieldValue( const double Point[4],
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double *Bfield ) const = 0;
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G4Field(){;}
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virtual ~G4Field(){;}
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inline G4Field& operator = (const G4Field &p);
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// A field signature function that can be used to insure
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// that the Equation of motion object and the G4Field object
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// have the same "field signature"?
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virtual G4bool DoesFieldChangeEnergy() const= 0 ;
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// For electric field this should be true
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// For pure magnetic field this should be false
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};
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inline G4Field& G4Field::operator = (const G4Field &p)
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{
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if (&p != this) { *this = p; }
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return *this;
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}
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#endif /* G4FIELD_HH */
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