source: trunk/source/digits_hits/scorer/src/G4PSCylinderSurfaceCurrent.cc@ 899

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// $Id: G4PSCylinderSurfaceCurrent.cc,v 1.1 2007/08/14 21:23:51 taso Exp $
// GEANT4 tag $Name: HEAD $
//
// G4PSCylinderSurfaceCurrent
#include "G4PSCylinderSurfaceCurrent.hh"
#include "G4StepStatus.hh"
#include "G4Track.hh"
#include "G4UnitsTable.hh"
#include "G4GeometryTolerance.hh"
////////////////////////////////////////////////////////////////////////////////
// (Description)
//   This is a primitive scorer class for scoring only Surface Current.
//  Current version assumes only for G4Tubs shape. 
//
// Surface is defined at the inner surface of the tube.
// Direction                   R    R+dR
//   0  IN || OUT            ->|<-  |
//   1  IN                   ->|    |
//   2  OUT                    |<-  |
//
// Created: 2007-03-21  Tsukasa ASO
// 
///////////////////////////////////////////////////////////////////////////////


G4PSCylinderSurfaceCurrent::G4PSCylinderSurfaceCurrent(G4String name, 
                                         G4int direction, G4int depth)
  :G4VPrimitiveScorer(name,depth),HCID(-1),fDirection(direction),
   weighted(true),divideByArea(true)
{;}

G4PSCylinderSurfaceCurrent::~G4PSCylinderSurfaceCurrent()
{;}

G4bool G4PSCylinderSurfaceCurrent::ProcessHits(G4Step* aStep,G4TouchableHistory*)
{
  G4StepPoint* preStep = aStep->GetPreStepPoint();
  G4VSolid * solid = 
    preStep->GetPhysicalVolume()->GetLogicalVolume()->GetSolid();
  if( solid->GetEntityType() != "G4Tubs" ){
    G4Exception("G4PSCylinderSurfaceCurrentScorer. - Solid type is not supported.");
    return FALSE;
  }
  G4Tubs* tubsSolid = (G4Tubs*)(solid);

  G4int dirFlag =IsSelectedSurface(aStep,tubsSolid);
  if ( dirFlag > 0 ) {
    if ( fDirection == fCurrent_InOut || fDirection == dirFlag ){
      G4TouchableHandle theTouchable = preStep->GetTouchableHandle();
      //
      G4double current = 1.0;
      if ( weighted ) current = preStep->GetWeight(); // Current (Particle Weight)
      //
      if ( divideByArea ){
        G4double square = 2.*tubsSolid->GetZHalfLength()
          *tubsSolid->GetInnerRadius()* tubsSolid->GetDeltaPhiAngle()/radian;
        current = current/square;  // Current normalized by Area
      }

      G4int index = GetIndex(aStep);
      EvtMap->add(index,current);
    }

  }

  return TRUE;
}

G4int G4PSCylinderSurfaceCurrent::IsSelectedSurface(G4Step* aStep, G4Tubs* tubsSolid){

  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()) > tubsSolid->GetZHalfLength() ) return -1;
    if(std::fabs( (localpos1.x()*localpos1.x()+localpos1.y()*localpos1.y())
                  -(tubsSolid->GetInnerRadius()*tubsSolid->GetInnerRadius()) )
       < kCarTolerance ){
      return fCurrent_In;
    }
  }

  if (aStep->GetPostStepPoint()->GetStepStatus() == fGeomBoundary ){
    // Exiting Geometry
    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.x()*localpos2.x()+localpos2.y()*localpos2.y()) 
                  - (tubsSolid->GetInnerRadius()*tubsSolid->GetInnerRadius()) )
       <kCarTolerance ){
      return fCurrent_Out;
    }
  }

  return -1;
}

void G4PSCylinderSurfaceCurrent::Initialize(G4HCofThisEvent* HCE)
{
  EvtMap = new G4THitsMap<G4double>(detector->GetName(), GetName());
  if ( HCID < 0 ) HCID = GetCollectionID(0);
  HCE->AddHitsCollection(HCID, (G4VHitsCollection*)EvtMap);
}

void G4PSCylinderSurfaceCurrent::EndOfEvent(G4HCofThisEvent*)
{;}

void G4PSCylinderSurfaceCurrent::clear(){
  EvtMap->clear();
}

void G4PSCylinderSurfaceCurrent::DrawAll()
{;}

void G4PSCylinderSurfaceCurrent::PrintAll()
{
  G4cout << " MultiFunctionalDet  " << detector->GetName() << G4endl;
  G4cout << " PrimitiveScorer " << GetName() <<G4endl; 
  G4cout << " Number of entries " << EvtMap->entries() << G4endl;
  std::map<G4int,G4double*>::iterator itr = EvtMap->GetMap()->begin();
  for(; itr != EvtMap->GetMap()->end(); itr++) {
    G4cout << "  copy no.: " << itr->first
           << "  current  : " ;
    if ( divideByArea ) G4cout << *(itr->second)*cm*cm << " [/cm2]";
    else G4cout << *(itr->second) << " [track]";
    G4cout << G4endl;
  }
}