//---------------------------------------------------------------------------
G4int SteppingAction::IsBoxSurfaceFlux(const G4Step* aStep) //returns 1(in), 2(out), or -1
{ //G4PSFlatSurfaceFlux
G4StepPoint* preStep = aStep->GetPreStepPoint();
G4VPhysicalVolume* physVol = preStep->GetPhysicalVolume();
G4VPVParameterisation* physParam = physVol->GetParameterisation();
G4VSolid * solid = 0;
if(physParam)
{ // for parameterized volume
//G4int idx = ((G4TouchableHistory*)(aStep->GetPreStepPoint()->GetTouchable()))
//->GetReplicaNumber(indexDepth);//TODO find indexDepth and use these
//solid = physParam->ComputeSolid(idx, physVol);
//solid->ComputeDimensions(physParam,idx,physVol);
}
else
{ // for ordinary volume
solid = physVol->GetLogicalVolume()->GetSolid();
}
G4Box* boxSolid = (G4Box*)(solid);
G4TouchableHandle theTouchable =
aStep->GetPreStepPoint()->GetTouchableHandle();
G4double kCarTolerance=G4GeometryTolerance::GetInstance()->GetSurfaceTolerance();
if (aStep->GetPreStepPoint()->GetStepStatus() == fGeomBoundary ){
// Entering Geometry
G4ThreeVector stppos1= aStep->GetPreStepPoint()->GetPosition();
G4ThreeVector localpos1 =
theTouchable->GetHistory()->GetTopTransform().TransformPoint(stppos1);
if(std::fabs( localpos1.z() + boxSolid->GetZHalfLength())<kCarTolerance
||std::fabs( localpos1.z() - boxSolid->GetZHalfLength())<kCarTolerance
||std::fabs( localpos1.y() + boxSolid->GetYHalfLength())<kCarTolerance
||std::fabs( localpos1.y() - boxSolid->GetYHalfLength())<kCarTolerance
||std::fabs( localpos1.x() + boxSolid->GetXHalfLength())<kCarTolerance
||std::fabs( localpos1.x() - boxSolid->GetXHalfLength())<kCarTolerance
){
return 1;//fFlux_In; _InOut =0
}
}
if (aStep->GetPostStepPoint()->GetStepStatus() == fGeomBoundary ){
// Exiting Geometry
G4ThreeVector stppos2= aStep->GetPostStepPoint()->GetPosition();
G4ThreeVector localpos2 =
theTouchable->GetHistory()->GetTopTransform().TransformPoint(stppos2);
if(std::fabs( localpos2.z() + boxSolid->GetZHalfLength())<kCarTolerance
||std::fabs( localpos2.z() - boxSolid->GetZHalfLength())<kCarTolerance
||std::fabs( localpos2.y() + boxSolid->GetYHalfLength())<kCarTolerance
||std::fabs( localpos2.y() - boxSolid->GetYHalfLength())<kCarTolerance
||std::fabs( localpos2.x() + boxSolid->GetXHalfLength())<kCarTolerance
||std::fabs( localpos2.x() - boxSolid->GetXHalfLength())<kCarTolerance
){
return 2;//fFlux_Out;
}
}
return -1;
}
G4int SteppingAction::IsCylSurfaceFlux(const G4Step* aStep, G4double fRadius, G4double fHalfHt)
{ //from G4PSCylinderSurfaceFlux //returns 1(in), 2(out), or -1
G4StepPoint* preStep = aStep->GetPreStepPoint(); //?????
G4VPhysicalVolume* physVol = preStep->GetPhysicalVolume();
G4VPVParameterisation* physParam = physVol->GetParameterisation();
//G4VSolid* solid = NULL;
if(physParam)
{ // for parameterized volume
//G4int idx = ((G4TouchableHistory*)(aStep->GetPreStepPoint()->GetTouchable()))
//->GetReplicaNumber(indexDepth);//TODO get indexdepth and uncomment these
//solid = physParam->ComputeSolid(idx, physVol);
//solid->ComputeDimensions(physParam,idx,physVol);
}
else
{ // for ordinary volume
// solid = physVol->GetLogicalVolume()->GetSolid();
//G4cout << " logvol " << physVol->GetLogicalVolume()->GetName() << G4endl;
//NOTE this is wrong
}
//G4Tubs* tubsSolid = (G4Tubs*)(solid); //NOTE solid dimensions are all 0
//now it is bypassed by passing in ht and rad. TODO correct it
G4TouchableHandle theTouchable = aStep->GetPreStepPoint()->GetTouchableHandle();
G4double kCarTolerance = G4GeometryTolerance::GetInstance()->GetSurfaceTolerance();
if (aStep->GetPreStepPoint()->GetStepStatus() == fGeomBoundary )
{
// Entering Geometry. Prestep point is at the Outer surface.
G4ThreeVector stppos1= aStep->GetPreStepPoint()->GetPosition();
G4ThreeVector localpos1 =
theTouchable->GetHistory()->GetTopTransform().TransformPoint(stppos1);
//if ( std::fabs(localpos1.z()) > tubsSolid->GetZHalfLength()) return -1;
if ( std::fabs(localpos1.z()) > (fHalfHt+ kCarTolerance))//tubsSolid->GetZHalfLength()
{//G4cout << " preGeom:-1:z " << localpos1.z() << " halfz " << tubsSolid->GetZHalfLength()
// <<" tol " << kCarTolerance << G4endl; // NOTE solid dimensions are all 0
return -1;
}
G4double localR2 = localpos1.x()*localpos1.x()+localpos1.y()*localpos1.y();
G4double outerRad = fRadius;//tubsSolid->GetOuterRadius();// GetInnerRadius();//NOTE
if( (localR2 > (outerRad-kCarTolerance)*(outerRad-kCarTolerance)
&& localR2 < (outerRad+kCarTolerance)*(outerRad+kCarTolerance))
||
( std::fabs( localpos1.z())< (fHalfHt +kCarTolerance)//tubsSolid->GetZHalfLength()
&& localR2 < (outerRad+kCarTolerance)*(outerRad+kCarTolerance) )
){
//G4cout << " preGeom:1 " << G4endl;
return 1;//fFlux_In;
}
}
if (aStep->GetPostStepPoint()->GetStepStatus() == fGeomBoundary )
{
// Exiting Geometry. Post step point is at the outer surface.
G4ThreeVector stppos2= aStep->GetPostStepPoint()->GetPosition();
G4ThreeVector localpos2 =
theTouchable->GetHistory()->GetTopTransform().TransformPoint(stppos2);
//if ( std::fabs(localpos2.z()) > tubsSolid->GetZHalfLength() ) return -1;
if ( std::fabs(localpos2.z()) > (fHalfHt+ kCarTolerance))//tubsSolid->GetZHalfLength()
{
return -1;
}
G4double localR2 = localpos2.x()*localpos2.x()+localpos2.y()*localpos2.y();
G4double outerRad = fRadius;//tubsSolid->GetOuterRadius();//GetInnerRadius();//NOTE
if( (localR2 > (outerRad-kCarTolerance)*(outerRad-kCarTolerance)
&& localR2 < (outerRad+kCarTolerance)*(outerRad+kCarTolerance))
||
( std::fabs( localpos2.z())< ( fHalfHt+kCarTolerance)// tubsSolid->GetZHalfLength()
&& localR2 < (outerRad+kCarTolerance)*(outerRad+kCarTolerance) )
){
//G4cout << " postGeom:2 " << G4endl;
return 2;//fFlux_Out;
}
}
return -1;
}