LXeTrajectory.cc

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//
// $Id: LXeTrajectory.cc 110138 2018-05-16 07:31:43Z gcosmo $
//
//
//
#include "LXeTrajectory.hh"
#include "G4TrajectoryPoint.hh"
#include "G4Trajectory.hh"
#include "G4ParticleTable.hh"
#include "G4ParticleTypes.hh"
#include "G4ThreeVector.hh"
#include "G4Polyline.hh"
#include "G4Circle.hh"
#include "G4Colour.hh"
#include "G4VisAttributes.hh"
#include "G4VVisManager.hh"
#include "G4Polymarker.hh"

G4ThreadLocal G4Allocator<LXeTrajectory>* LXeTrajectoryAllocator = nullptr;

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LXeTrajectory::LXeTrajectory()
  :G4Trajectory(),fWls(false),fDrawit(false),
   fForceNoDraw(false),fForceDraw(false)
{
  fParticleDefinition = nullptr;
}

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LXeTrajectory::LXeTrajectory(const G4Track* aTrack)
  :G4Trajectory(aTrack),fWls(false),fDrawit(false)
{
  fParticleDefinition=aTrack->GetDefinition();
}

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LXeTrajectory::LXeTrajectory(LXeTrajectory &right)
  :G4Trajectory(right),fWls(right.fWls),fDrawit(right.fDrawit)
{
  fParticleDefinition=right.fParticleDefinition;
}

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LXeTrajectory::~LXeTrajectory() {}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

void LXeTrajectory::DrawTrajectory() const
{
  // i_mode is no longer available as an argument of G4VTrajectory.
  // In this exampple it was always called with an argument of 50.
  const G4int i_mode = 50;
  // Consider using commands /vis/modeling/trajectories.
  
  //Taken from G4VTrajectory and modified to select colours based on particle
  //type and to selectively eliminate drawing of certain trajectories.

  if(!fForceDraw && (!fDrawit || fForceNoDraw))
    return;

  // If i_mode>=0, draws a trajectory as a polyline and, if i_mode!=0,
  // adds markers - yellow circles for step points and magenta squares
  // for auxiliary points, if any - whose screen size in pixels is
  // given by std::abs(i_mode)/1000.  E.g: i_mode = 5000 gives easily
  // visible markers.
 
  G4VVisManager* pVVisManager = G4VVisManager::GetConcreteInstance();
  if (!pVVisManager) return;
 
  const G4double markerSize = std::abs(i_mode)/1000;
  G4bool lineRequired (i_mode >= 0);
  G4bool markersRequired (markerSize > 0.);
 
  G4Polyline trajectoryLine;
  G4Polymarker stepPoints;
  G4Polymarker auxiliaryPoints;
 
  for (G4int i = 0; i < GetPointEntries() ; i++) {
    G4VTrajectoryPoint* aTrajectoryPoint = GetPoint(i);
    const std::vector<G4ThreeVector>* auxiliaries
      = aTrajectoryPoint->GetAuxiliaryPoints();
    if (auxiliaries) {
      for (size_t iAux = 0; iAux < auxiliaries->size(); ++iAux) {
        const G4ThreeVector pos((*auxiliaries)[iAux]);
        if (lineRequired) {
          trajectoryLine.push_back(pos);
        }
        if (markersRequired) {
          auxiliaryPoints.push_back(pos);
        }
      }
    }
    const G4ThreeVector pos(aTrajectoryPoint->GetPosition());
    if (lineRequired) {
      trajectoryLine.push_back(pos);
    }
    if (markersRequired) {
      stepPoints.push_back(pos);
    }
  }
 
  if (lineRequired) {
    G4Colour colour;
 
    if(fParticleDefinition==G4OpticalPhoton::OpticalPhotonDefinition()){
      if(fWls) //WLS photons are red
        colour = G4Colour(1.,0.,0.);
      else{ //Scintillation and Cerenkov photons are green
        colour = G4Colour(0.,1.,0.);
      }
    }
    else //All other particles are blue
      colour = G4Colour(0.,0.,1.);
 
    G4VisAttributes trajectoryLineAttribs(colour);
    trajectoryLine.SetVisAttributes(&trajectoryLineAttribs);
    pVVisManager->Draw(trajectoryLine);
  }
  if (markersRequired) {
    auxiliaryPoints.SetMarkerType(G4Polymarker::squares);
    auxiliaryPoints.SetScreenSize(markerSize);
    auxiliaryPoints.SetFillStyle(G4VMarker::filled);
    G4VisAttributes auxiliaryPointsAttribs(G4Colour(0.,1.,1.));  // Magenta
    auxiliaryPoints.SetVisAttributes(&auxiliaryPointsAttribs);
    pVVisManager->Draw(auxiliaryPoints);

    stepPoints.SetMarkerType(G4Polymarker::circles);
    stepPoints.SetScreenSize(markerSize);
    stepPoints.SetFillStyle(G4VMarker::filled);
    G4VisAttributes stepPointsAttribs(G4Colour(1.,1.,0.));  // Yellow
    stepPoints.SetVisAttributes(&stepPointsAttribs);
    pVVisManager->Draw(stepPoints);
  }
}