Gabriele Cosmo
150 lines
5.1 KiB
C++
150 lines
5.1 KiB
C++
//
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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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//
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// $Id: G4ErrorPropagationNavigator.cc,v 1.1 2007/05/16 12:49:18 gcosmo Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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//
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//
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// --------------------------------------------------------------------
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// GEANT 4 class implementation file
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// --------------------------------------------------------------------
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#include "G4ErrorPropagationNavigator.hh"
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#include "globals.hh"
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#include "G4ThreeVector.hh"
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#include "G4ErrorPropagatorData.hh"
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#include "G4ErrorSurfaceTarget.hh"
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//-------------------------------------------------------------------
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G4ErrorPropagationNavigator::G4ErrorPropagationNavigator()
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: G4Navigator()
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{
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}
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//-------------------------------------------------------------------
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G4ErrorPropagationNavigator::~G4ErrorPropagationNavigator()
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{
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}
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//-------------------------------------------------------------------
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G4double G4ErrorPropagationNavigator::
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ComputeStep ( const G4ThreeVector &pGlobalPoint,
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const G4ThreeVector &pDirection,
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const G4double pCurrentProposedStepLength,
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G4double &pNewSafety )
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{
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G4double Step = G4Navigator::ComputeStep(pGlobalPoint, pDirection,
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pCurrentProposedStepLength,
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pNewSafety);
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G4ErrorPropagatorData * g4edata
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= G4ErrorPropagatorData::GetErrorPropagatorData();
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if (g4edata !=0)
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{
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const G4ErrorTarget* target = g4edata->GetTarget();
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if( target != 0 )
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{
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G4double StepPlane(target->GetDistanceFromPoint(pGlobalPoint,pDirection));
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if( StepPlane < 0. ) // Negative means target is crossed, will not be found
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{
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StepPlane = DBL_MAX;
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}
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#ifdef G4VERBOSE
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if( G4ErrorPropagatorData::verbose() >= 4 )
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{
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G4cout << "G4ErrorPropagationNavigator::ComputeStep()" << G4endl
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<< " Target step: " << StepPlane
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<< ", Transportation step: " << Step << G4endl;
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target->Dump( "G4ErrorPropagationNavigator::ComputeStep Target " );
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}
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#endif
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if(StepPlane<Step)
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{
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#ifdef G4VERBOSE
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if( G4ErrorPropagatorData::verbose() >= 2 )
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{
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G4cout << "G4ErrorPropagationNavigator::ComputeStep()" << G4endl
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<< " TargetCloserThanBoundary: " << StepPlane << " < "
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<< Step << G4endl;
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}
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#endif
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Step = StepPlane;
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g4edata->SetState(G4ErrorState_TargetCloserThanBoundary);
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}
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else
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{
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g4edata->SetState(G4ErrorState_Propagating);
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}
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}
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}
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pNewSafety = ComputeSafety(pGlobalPoint, pCurrentProposedStepLength);
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#ifdef G4VERBOSE
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if( G4ErrorPropagatorData::verbose() >= 3 )
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{
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G4cout << "G4ErrorPropagationNavigator::ComputeStep()" << G4endl
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<< " Step: " << Step << ", ComputeSafety: " << pNewSafety
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<< G4endl;
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}
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#endif
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return Step;
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}
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//-------------------------------------------------------------------
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G4double G4ErrorPropagationNavigator::
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ComputeSafety( const G4ThreeVector &pGlobalpoint,
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const G4double pMaxLength )
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{
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G4double newSafety = G4Navigator::ComputeSafety(pGlobalpoint, pMaxLength);
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G4ErrorPropagatorData *g4edata
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= G4ErrorPropagatorData::GetErrorPropagatorData();
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if (g4edata !=0)
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{
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const G4ErrorTarget* target = g4edata->GetTarget();
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if( target != 0 )
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{
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G4double distance = target->GetDistanceFromPoint(pGlobalpoint);
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if(distance<newSafety)
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{
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newSafety = distance;
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}
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}
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}
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return newSafety;
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}
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