Gabriele Cosmo
111 lines
3.7 KiB
C++
111 lines
3.7 KiB
C++
//
|
|
// ********************************************************************
|
|
// * 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: G4SamplingPostStepAction.cc,v 1.2 2004/10/19 00:59:40 kurasige Exp $
|
|
// GEANT4 tag $Name: geant4-07-00-cand-01 $
|
|
//
|
|
// ----------------------------------------------------------------------
|
|
// GEANT 4 class source file
|
|
//
|
|
// G4SamplingPostStepAction.cc
|
|
//
|
|
// ----------------------------------------------------------------------
|
|
|
|
#include "G4SamplingPostStepAction.hh"
|
|
#include "G4Track.hh"
|
|
#include "G4ParticleChange.hh"
|
|
#include "G4VImportanceSplitExaminer.hh"
|
|
#include "G4Nsplit_Weight.hh"
|
|
#include "G4VTrackTerminator.hh"
|
|
#include <strstream>
|
|
|
|
G4SamplingPostStepAction::
|
|
G4SamplingPostStepAction(const G4VTrackTerminator &TrackTerminator)
|
|
: fTrackTerminator(TrackTerminator)
|
|
{
|
|
}
|
|
|
|
G4SamplingPostStepAction::~G4SamplingPostStepAction()
|
|
{
|
|
}
|
|
|
|
void G4SamplingPostStepAction::DoIt(const G4Track& aTrack,
|
|
G4ParticleChange *aParticleChange,
|
|
const G4Nsplit_Weight &nw)
|
|
{
|
|
// evaluate results from sampler
|
|
if (nw.fN>1)
|
|
{
|
|
// split track
|
|
Split(aTrack, nw, aParticleChange);
|
|
}
|
|
else if (nw.fN==1)
|
|
{
|
|
// don't split, but weight may be changed !
|
|
aParticleChange->ProposeWeight(nw.fW);
|
|
}
|
|
else if (nw.fN==0)
|
|
{
|
|
// kill track
|
|
fTrackTerminator.KillTrack();
|
|
}
|
|
else
|
|
{
|
|
// wrong answer
|
|
char st[200];
|
|
std::ostrstream os(st,200);
|
|
os << "Sampler returned nw = "
|
|
<< nw
|
|
<< "\n"
|
|
<< '\0';
|
|
G4String m(st);
|
|
|
|
G4Exception("G4SamplingPostStepAction::DoIt()",
|
|
"InvalidCondition", FatalException, m);
|
|
}
|
|
}
|
|
|
|
void G4SamplingPostStepAction::Split(const G4Track &aTrack,
|
|
const G4Nsplit_Weight &nw,
|
|
G4ParticleChange *aParticleChange)
|
|
{
|
|
aParticleChange->ProposeWeight(nw.fW);
|
|
aParticleChange->SetNumberOfSecondaries(nw.fN-1);
|
|
|
|
for (G4int i=1;i<nw.fN;i++)
|
|
{
|
|
G4Track *ptrack = new G4Track(aTrack);
|
|
|
|
// ptrack->SetCreatorProcess(aTrack.GetCreatorProcess());
|
|
ptrack->SetWeight(nw.fW);
|
|
|
|
if (ptrack->GetMomentumDirection() != aTrack.GetMomentumDirection())
|
|
{
|
|
G4Exception("G4SamplingPostStepAction::Split()", "InvalidCondition",
|
|
FatalException, "Track with same momentum !");
|
|
}
|
|
aParticleChange->AddSecondary(ptrack);
|
|
}
|
|
return;
|
|
}
|