Gabriele Cosmo
442 lines
12 KiB
Plaintext
442 lines
12 KiB
Plaintext
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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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. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// Class G4PropagatorInField Inline implementation
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//
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// To create an object of this type, must have:
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// - an object that calculates the Curved paths
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// - the navigator to find (linear) intersections
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// - and also must know the value of the maximum displacement allowed
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//
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// Author: John Apostolakis (CERN), 25 October 1996
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// ------------------------------------------------------------------------
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// ------------------------------------------------------------------------
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//
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inline
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G4ChordFinder* G4PropagatorInField::GetChordFinder()
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{
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// The "Chord Finder" of the current Field Mgr is used
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// -- this could be of the global field manager
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// or that of another, from the current volume
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return fCurrentFieldMgr->GetChordFinder();
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}
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// ------------------------------------------------------------------------
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// Obtain the final space-point and velocity (normal) at the end of the Step
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//
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inline
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G4ThreeVector G4PropagatorInField::EndPosition() const
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{
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return End_PointAndTangent.GetPosition();
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4ThreeVector G4PropagatorInField::EndMomentumDir() const
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{
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return End_PointAndTangent.GetMomentumDir();
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4double G4PropagatorInField::GetEpsilonStep() const
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{
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return fEpsilonStep;
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::SetEpsilonStep( G4double newEps )
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{
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fEpsilonStep = newEps;
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4bool G4PropagatorInField::IsParticleLooping() const
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{
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return fParticleIsLooping;
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4int G4PropagatorInField::GetMaxLoopCount() const
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{
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return fMax_loop_count;
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::SetMaxLoopCount( G4int new_max )
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{
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fMax_loop_count = new_max;
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4double G4PropagatorInField::GetDeltaIntersection() const
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{
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return fCurrentFieldMgr->GetDeltaIntersection();
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4double G4PropagatorInField::GetDeltaOneStep() const
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{
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return fCurrentFieldMgr->GetDeltaOneStep();
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4int G4PropagatorInField::GetVerboseLevel() const
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{
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return fVerboseLevel;
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4int G4PropagatorInField::Verbose() const // Obsolete
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{
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return GetVerboseLevel();
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::SetVerboseTrace( G4bool enable )
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{
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fVerbTracePiF = enable;
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4bool G4PropagatorInField::GetVerboseTrace()
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{
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return fVerbTracePiF;
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::CheckMode(G4bool mode)
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{
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fCheck = mode;
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if (fIntersectionLocator != nullptr)
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{
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fIntersectionLocator->SetCheckMode(mode);
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}
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4FieldTrack G4PropagatorInField::GetEndState() const
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{
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return End_PointAndTangent;
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}
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// ------------------------------------------------------------------------
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// Minimum for Relative accuracy of a Step in volumes of global field
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//
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inline
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G4double G4PropagatorInField::GetMinimumEpsilonStep() const
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{
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return fDetectorFieldMgr->GetMinimumEpsilonStep();
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::SetMinimumEpsilonStep( G4double newEpsMin )
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{
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fDetectorFieldMgr->SetMinimumEpsilonStep(newEpsMin);
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}
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// ------------------------------------------------------------------------
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// Maximum for Relative accuracy of any Step
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//
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inline
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G4double G4PropagatorInField::GetMaximumEpsilonStep() const
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{
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return fDetectorFieldMgr->GetMaximumEpsilonStep();
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::SetMaximumEpsilonStep( G4double newEpsMax )
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{
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fDetectorFieldMgr->SetMaximumEpsilonStep( newEpsMax );
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4FieldManager* G4PropagatorInField::GetCurrentFieldManager()
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{
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return fCurrentFieldMgr;
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::SetThresholdNoZeroStep( G4int noAct,
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G4int noHarsh,
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G4int noAbandon )
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{
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if( noAct>0 )
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{
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fActionThreshold_NoZeroSteps = noAct;
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}
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if( noHarsh > fActionThreshold_NoZeroSteps )
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{
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fSevereActionThreshold_NoZeroSteps = noHarsh;
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}
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else
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{
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fSevereActionThreshold_NoZeroSteps = 2*(fActionThreshold_NoZeroSteps+1);
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}
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if( noAbandon > fSevereActionThreshold_NoZeroSteps+5 )
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{
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fAbandonThreshold_NoZeroSteps = noAbandon;
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}
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else
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{
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fAbandonThreshold_NoZeroSteps = 2*(fSevereActionThreshold_NoZeroSteps+3);
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}
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4int G4PropagatorInField::GetThresholdNoZeroSteps( G4int i )
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{
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G4int t=0;
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if( i==0 ) { t = 3; } // No of parameters
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else if (i==1) { t = fActionThreshold_NoZeroSteps; }
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else if (i==2) { t = fSevereActionThreshold_NoZeroSteps; }
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else if (i==3) { t = fAbandonThreshold_NoZeroSteps; }
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return t;
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}
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// ------------------------------------------------------------------------
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//
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inline G4double G4PropagatorInField::GetZeroStepThreshold()
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{
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return fZeroStepThreshold;
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}
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// ------------------------------------------------------------------------
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//
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inline void G4PropagatorInField::SetZeroStepThreshold( G4double newLength )
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{
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fZeroStepThreshold= newLength;
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::SetDetectorFieldManager(G4FieldManager* newDFMan)
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{
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fDetectorFieldMgr = newDFMan;
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField:: SetUseSafetyForOptimization( G4bool value )
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{
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fUseSafetyForOptimisation = value;
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4bool G4PropagatorInField::GetUseSafetyForOptimization()
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{
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return fUseSafetyForOptimisation;
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::
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SetNavigatorForPropagating( G4Navigator* SimpleOrMultiNavigator )
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{
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if (SimpleOrMultiNavigator != nullptr)
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{
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fNavigator = SimpleOrMultiNavigator;
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if( fIntersectionLocator != nullptr )
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{
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fIntersectionLocator->SetNavigatorFor( SimpleOrMultiNavigator );
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}
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}
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4Navigator* G4PropagatorInField::GetNavigatorForPropagating()
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{
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return fNavigator;
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}
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// ------------------------------------------------------------------------
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//
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inline
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void G4PropagatorInField::
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SetIntersectionLocator( G4VIntersectionLocator* pIntLoc )
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{
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if (pIntLoc != nullptr)
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{
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fIntersectionLocator= pIntLoc;
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// Ensure that the Intersection Locator uses the correct Navigator
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//
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pIntLoc->SetNavigatorFor( fNavigator );
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}
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4VIntersectionLocator* G4PropagatorInField::GetIntersectionLocator()
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{
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return fIntersectionLocator;
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}
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// ------------------------------------------------------------------------
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//
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inline
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G4bool G4PropagatorInField::IntersectChord( const G4ThreeVector& StartPointA,
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const G4ThreeVector& EndPointB,
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G4double& NewSafety,
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G4double& LinearStepLength,
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G4ThreeVector& IntersectionPoint )
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{
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// Calculate the direction and length of the chord AB
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//
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#ifdef G4DEBUG_PROPAGATION
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if( fVerbTracePiF )
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G4cout << "**** G4PropagatorInField::IntersectChord called."
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<< " InPut: StartPointA: " << StartPointA
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<< " EndPointB= " << EndPointB
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<< " StepLength= " << LinearStepLength
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<< " IntersecLen= " << IntersectionPoint
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<< G4endl;
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#endif
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G4bool retVal= fIntersectionLocator
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->IntersectChord(StartPointA,EndPointB,NewSafety,
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fPreviousSafety,fPreviousSftOrigin,
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LinearStepLength,IntersectionPoint);
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#ifdef G4DEBUG_PROPAGATION
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if( fVerbTracePiF )
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G4cout << "**** G4PropagatorInField::IntersectChord ended."
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<< " OutPut: Safety= " << NewSafety
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<< " StepLength= " << LinearStepLength
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<< " IntersecPt= " << IntersectionPoint
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<< G4endl;
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#endif
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return retVal;
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}
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// ------------------------------------------------------------------------
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//
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inline G4bool G4PropagatorInField::IsFirstStepInVolume()
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{
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return fFirstStepInVolume;
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}
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// ------------------------------------------------------------------------
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//
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inline G4bool G4PropagatorInField::IsLastStepInVolume()
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{
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return fLastStepInVolume;
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}
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// ------------------------------------------------------------------------
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//
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inline void G4PropagatorInField::PrepareNewTrack()
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{
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fNewTrack = true;
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fFirstStepInVolume = false;
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fLastStepInVolume = false;
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}
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// ------------------------------------------------------------------------
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//
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inline G4EquationOfMotion* G4PropagatorInField::GetCurrentEquationOfMotion()
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{
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if (auto pChordFinder = GetChordFinder())
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{
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if (auto pIntDriver = pChordFinder->GetIntegrationDriver())
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{
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return pIntDriver->GetEquationOfMotion();
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}
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}
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return nullptr;
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}
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// ------------------------------------------------------------------------
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//
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G4int G4PropagatorInField::GetIterationsToIncreaseChordDistance() const
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{
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return fIncreaseChordDistanceThreshold;
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}
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// ------------------------------------------------------------------------
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//
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void G4PropagatorInField::SetIterationsToIncreaseChordDistance(G4int numIters)
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{
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fIncreaseChordDistanceThreshold = numIters;
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if(numIters <= 0)
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{
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// Disables relaxation
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if( fVerboseLevel != 0 ){
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G4cout << "G4PropagatorInField: Turned OFF the Relaxation of chord "
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<< "finder as iteration threshold = " << numIters
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<< " is not positive." << G4endl;
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}
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}
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}
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