Gabriele Cosmo
114 lines
4.4 KiB
C++
114 lines
4.4 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. *
|
|
// ********************************************************************
|
|
//
|
|
// G4ChordFinderDelegate
|
|
//
|
|
// Class description:
|
|
//
|
|
// Implementation of common algorithm of finding step size
|
|
// with distance to chord less then provided value.
|
|
|
|
// Created: D.Sorokin
|
|
// --------------------------------------------------------------------
|
|
#ifndef G4CHORD_FINDER_DELEGATE_HH
|
|
#define G4CHORD_FINDER_DELEGATE_HH
|
|
|
|
#include "G4VIntegrationDriver.hh"
|
|
|
|
template <class Driver>
|
|
class G4ChordFinderDelegate
|
|
{
|
|
public:
|
|
|
|
virtual ~G4ChordFinderDelegate();
|
|
|
|
G4double AdvanceChordLimitedImpl(G4FieldTrack& track,
|
|
G4double hstep,
|
|
G4double eps,
|
|
G4double chordDistance);
|
|
void ResetStepEstimate();
|
|
|
|
void TestChordPrint(G4int noTrials,
|
|
G4int lastStepTrial,
|
|
G4double dChordStep,
|
|
G4double fDeltaChord,
|
|
G4double nextStepTrial);
|
|
|
|
// Get statistics about number of calls & trials in FindNextChord
|
|
G4int GetNoCalls();
|
|
G4int GetNoTrials(); // Total number of trials
|
|
G4int GetNoMaxTrials(); // Maximum # of trials for one call
|
|
|
|
// Parameters for performance ... change with great care
|
|
void SetFractions_Last_Next(G4double fractLast = 0.90,
|
|
G4double fractNext = 0.95);
|
|
void SetFirstFraction(G4double fractFirst);
|
|
|
|
// Printing for monitoring ...
|
|
G4double GetFirstFraction(); // Originally 0.999
|
|
G4double GetFractionLast(); // Originally 1.000
|
|
G4double GetFractionNextEstimate(); // Originally 0.980
|
|
|
|
G4double GetLastStepEstimateUnc();
|
|
void SetLastStepEstimateUnc(G4double stepEst);
|
|
|
|
void StreamDelegateInfo( std::ostream& os ) const;
|
|
// Write out the parameters / state of the driver
|
|
|
|
private:
|
|
|
|
Driver& GetDriver();
|
|
|
|
G4double FindNextChord(const G4FieldTrack& yStart,
|
|
G4double stepMax,
|
|
G4double epsStep,
|
|
G4double chordDistance,
|
|
G4FieldTrack& yEnd, // Endpoint
|
|
G4double& dyErrPos, // Error of endpoint
|
|
G4double& pStepForAccuracy);
|
|
|
|
G4double NewStep(G4double stepTrialOld,
|
|
G4double dChordStep, // Curr. dchord achieved
|
|
G4double fDeltaChord,
|
|
G4double& stepEstimate_Unconstrained);
|
|
|
|
void AccumulateStatistics(G4int noTrials);
|
|
|
|
void PrintStatistics();
|
|
|
|
G4double fFirstFraction = 0.999;
|
|
G4double fFractionLast = 1.0;
|
|
G4double fFractionNextEstimate = 0.98;
|
|
G4double fLastStepEstimate_Unconstrained = DBL_MAX;
|
|
|
|
G4int fTotalNoTrials = 0;
|
|
G4int fNoCalls = 0;
|
|
G4int fmaxTrials = 0;
|
|
};
|
|
|
|
#include "G4ChordFinderDelegate.icc"
|
|
|
|
#endif
|