Import Geant4 6.0.0 source tree
This commit is contained in:
Gabriele Cosmo
@@ -0,0 +1,276 @@
|
||||
//
|
||||
// ********************************************************************
|
||||
// * DISCLAIMER *
|
||||
// * *
|
||||
// * The following disclaimer summarizes all the specific disclaimers *
|
||||
// * of contributors to this software. The specific disclaimers,which *
|
||||
// * govern, are listed with their locations in: *
|
||||
// * http://cern.ch/geant4/license *
|
||||
// * *
|
||||
// * 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. *
|
||||
// * *
|
||||
// * 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: G4PropagatorInField.hh,v 1.7 2003/11/26 14:45:04 japost Exp $
|
||||
// GEANT4 tag $Name: geant4-06-00 $
|
||||
//
|
||||
// class G4PropagatorInField
|
||||
//
|
||||
// Class description:
|
||||
//
|
||||
// This class performs the navigation/propagation of a particle/track
|
||||
// in a magnetic field. The field is in general non-uniform.
|
||||
// For the calculation of the path, it relies on the class G4ChordFinder.
|
||||
//
|
||||
// Key Method:
|
||||
// ComputeStep(..)
|
||||
// History:
|
||||
// -------
|
||||
// 25.10.96 John Apostolakis, design and implementation
|
||||
// 25.03.97 John Apostolakis, adaptation for G4Transportation and cleanup
|
||||
// 8.11.02 John Apostolakis, changes to enable use of safety in intersecting
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
#ifndef G4PropagatorInField_hh
|
||||
#define G4PropagatorInField_hh 1
|
||||
|
||||
#include "G4Types.hh"
|
||||
|
||||
#include <vector>
|
||||
|
||||
#include "G4FieldTrack.hh"
|
||||
#include "G4FieldManager.hh"
|
||||
class G4ChordFinder;
|
||||
|
||||
class G4Navigator;
|
||||
class G4VPhysicalVolume;
|
||||
class G4VCurvedTrajectoryFilter;
|
||||
|
||||
class G4PropagatorInField
|
||||
{
|
||||
|
||||
public: // with description
|
||||
|
||||
G4PropagatorInField( G4Navigator *theNavigator,
|
||||
G4FieldManager *detectorFieldMgr );
|
||||
~G4PropagatorInField();
|
||||
|
||||
G4double ComputeStep( G4FieldTrack &pFieldTrack,
|
||||
G4double pCurrentProposedStepLength,
|
||||
G4double &pNewSafety,
|
||||
G4VPhysicalVolume *pPhysVol=0 );
|
||||
// Compute the next geometric Step
|
||||
|
||||
inline G4ThreeVector EndPosition() const;
|
||||
inline G4ThreeVector EndMomentumDir() const;
|
||||
inline G4bool IsParticleLooping() const;
|
||||
// Return the state after the Step
|
||||
|
||||
inline G4double GetEpsilonStep() const;
|
||||
// Relative accuracy for current Step (Calc.)
|
||||
inline void SetEpsilonStep(G4double newEps);
|
||||
// The ratio DeltaOneStep()/h_current_step
|
||||
|
||||
inline void SetChargeMomentumMass( G4double charge, // in e+ units
|
||||
G4double momentum, // in Geant4 units
|
||||
G4double pMass );
|
||||
// Inform this and all associated classes of q, p, m
|
||||
|
||||
G4FieldManager* FindAndSetFieldManager(G4VPhysicalVolume* pCurrentPhysVol);
|
||||
// Set (and return) the correct field manager (global or local),
|
||||
// if it exists.
|
||||
// Should be called before ComputeStep is called;
|
||||
// - currently, ComputeStep will call it, if it has not been called.
|
||||
|
||||
inline G4ChordFinder* GetChordFinder();
|
||||
|
||||
inline G4int SetVerboseLevel( G4int verbose );
|
||||
inline G4int GetVerboseLevel() const;
|
||||
inline G4int Verbose() const;
|
||||
|
||||
inline G4int GetMaxLoopCount() const;
|
||||
inline void SetMaxLoopCount( G4int new_max );
|
||||
// A maximum for the number of steps that a (looping) particle can take.
|
||||
|
||||
void printStatus( const G4FieldTrack& startFT,
|
||||
const G4FieldTrack& currentFT,
|
||||
G4double requestStep,
|
||||
G4double safety,
|
||||
G4int step,
|
||||
G4VPhysicalVolume* startVolume);
|
||||
// Print Method - useful mostly for debugging.
|
||||
|
||||
inline G4FieldTrack GetEndState() const;
|
||||
|
||||
// The following methods are now obsolescent but *for now* will work
|
||||
// They are being replaced by same-name methods in G4FieldManager,
|
||||
// allowing the specialisation in different volumes.
|
||||
// Their new behaviour is to change the values for the global field manager.
|
||||
inline G4double GetMinimumEpsilonStep() const;
|
||||
inline void SetMinimumEpsilonStep( G4double newEpsMin );
|
||||
// Minimum for Relative accuracy of any Step
|
||||
|
||||
inline G4double GetMaximumEpsilonStep() const;
|
||||
inline void SetMaximumEpsilonStep( G4double newEpsMax );
|
||||
|
||||
inline void SetLargestAcceptableStep( G4double newBigDist );
|
||||
inline G4double GetLargestAcceptableStep();
|
||||
|
||||
public: // with description
|
||||
|
||||
// The following methods are obsolete and will not work --
|
||||
// as they have been replaced by the same methods in G4FieldManager
|
||||
// since Geant4 4.0
|
||||
inline G4double GetDeltaIntersection() const;
|
||||
inline G4double GetDeltaOneStep() const;
|
||||
inline void SetAccuraciesWithDeltaOneStep( G4double deltaOneStep );
|
||||
inline void SetDeltaIntersection( G4double deltaIntersection );
|
||||
inline void SetDeltaOneStep( G4double deltaOneStep );
|
||||
|
||||
public: // without description
|
||||
|
||||
inline G4FieldManager* GetCurrentFieldManager();
|
||||
|
||||
public: // no description
|
||||
|
||||
inline void SetThresholdNoZeroStep( G4int noAct,
|
||||
G4int noHarsh,
|
||||
G4int noAbandon );
|
||||
inline G4int GetThresholdNoZeroSteps( G4int i );
|
||||
|
||||
public: // with description
|
||||
//
|
||||
void SetTrajectoryFilter(G4VCurvedTrajectoryFilter* filter);
|
||||
// Set the filter that examines & stores 'intermediate'
|
||||
// curved trajectory points. Currently only position is stored.
|
||||
|
||||
std::vector<G4ThreeVector>* GimmeTrajectoryVectorAndForgetIt() const;
|
||||
// Access the points which have passed by the filter.
|
||||
// Responsibility for deleting the points lies with the client.
|
||||
// This method MUST BE called exactly ONCE per step.
|
||||
|
||||
void ClearPropagatorState();
|
||||
// Clear all the State of this class and its current associates
|
||||
// --> the current field manager & chord finder will also be called
|
||||
|
||||
inline void SetDetectorFieldManager( G4FieldManager* newGlobalFieldManager );
|
||||
// Update this (dangerous) state -- for the time being
|
||||
|
||||
inline void SetUseSafetyForOptimization( G4bool );
|
||||
inline G4bool GetUseSafetyForOptimization();
|
||||
// Toggle & view parameter for using safety to discard
|
||||
// unneccesary calls to navigator (thus 'optimising' performance)
|
||||
|
||||
protected: // with description
|
||||
|
||||
G4bool LocateIntersectionPoint(
|
||||
const G4FieldTrack& curveStartPointTangent, // A
|
||||
const G4FieldTrack& curveEndPointTangent, // B
|
||||
const G4ThreeVector& trialPoint, // E
|
||||
G4FieldTrack& intersectPointTangent, // Output
|
||||
G4bool& recalculatedEndPoint); // Out:
|
||||
|
||||
// If such an intersection exists, this function
|
||||
// calculate the intersection point of the true path of the particle
|
||||
// with the surface of the current volume (or of one of its daughters).
|
||||
// (Should use lateral displacement as measure of convergence).
|
||||
|
||||
G4bool IntersectChord( G4ThreeVector StartPointA,
|
||||
G4ThreeVector EndPointB,
|
||||
G4double &NewSafety,
|
||||
G4double &LinearStepLength,
|
||||
G4ThreeVector &IntersectionPoint);
|
||||
// Intersect the chord from StartPointA to EndPointB
|
||||
// and return whether an intersection occurred
|
||||
|
||||
G4FieldTrack ReEstimateEndpoint( const G4FieldTrack &CurrentStateA,
|
||||
const G4FieldTrack &EstimtdEndStateB,
|
||||
G4double linearDistSq,
|
||||
G4double curveDist);
|
||||
// Return new estimate for state after curveDist
|
||||
// starting from CurrentStateA, to replace EstimtdEndStateB,
|
||||
// (and report displacement -- if field is compiled verbose.)
|
||||
|
||||
void PrintStepLengthDiagnostic( G4double currentProposedStepLength,
|
||||
G4double decreaseFactor,
|
||||
G4double stepTrial,
|
||||
const G4FieldTrack& aFieldTrack);
|
||||
private:
|
||||
|
||||
// ----------------------------------------------------------------------
|
||||
// DATA Members
|
||||
// ----------------------------------------------------------------------
|
||||
|
||||
G4FieldManager *fDetectorFieldMgr;
|
||||
// The Field Manager of the whole Detector. (default)
|
||||
|
||||
G4FieldManager *fCurrentFieldMgr;
|
||||
// The Field Manager of the current volume (may be the one above.)
|
||||
|
||||
G4Navigator *fNavigator;
|
||||
|
||||
// STATE information
|
||||
// -----------------
|
||||
|
||||
G4double fEpsilonStep;
|
||||
// Relative accuracy for current Step (Calc.)
|
||||
|
||||
G4FieldTrack End_PointAndTangent;
|
||||
// End point storage
|
||||
|
||||
G4bool fParticleIsLooping;
|
||||
|
||||
G4int fVerboseLevel;
|
||||
// For debuging purposes
|
||||
|
||||
// Limit for the number of sub-steps taken in one call to ComputeStep
|
||||
G4int fMax_loop_count;
|
||||
|
||||
// Variables to keep track of "abnormal" case - which causes loop
|
||||
//
|
||||
G4int fNoZeroStep; // Counter of zeroStep
|
||||
G4int fActionThreshold_NoZeroSteps; // Threshold: above this - act
|
||||
G4int fSevereActionThreshold_NoZeroSteps; // Threshold to act harshly
|
||||
G4int fAbandonThreshold_NoZeroSteps; // Threshold to abandon
|
||||
|
||||
G4double fFull_CurveLen_of_LastAttempt;
|
||||
G4double fLast_ProposedStepLength;
|
||||
G4double fLargestAcceptableStep;
|
||||
|
||||
G4double fCharge, fInitialMomentumModulus, fMass;
|
||||
|
||||
// Last safety origin & value: for optimisation
|
||||
G4ThreeVector fPreviousSftOrigin;
|
||||
G4double fPreviousSafety;
|
||||
G4bool fUseSafetyForOptimisation;
|
||||
|
||||
// Flag whether field manager has been set for the current step
|
||||
G4bool fSetFieldMgr;
|
||||
|
||||
private:
|
||||
// The filter encapsulates the algorithm which selects which
|
||||
// intermediate points should be stored in a trajectory.
|
||||
// When it is NULL, no intermediate points will be stored.
|
||||
// Else PIF::ComputeStep must submit (all) intermediate
|
||||
// points it calculates, to this filter. (jacek 04/11/2002)
|
||||
G4VCurvedTrajectoryFilter* fpTrajectoryFilter;
|
||||
};
|
||||
|
||||
// ********************************************************************
|
||||
// Inline methods.
|
||||
// ********************************************************************
|
||||
|
||||
#include "G4PropagatorInField.icc"
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user