//
// PndTrkConformalHit.cxx
// 
// Class for pattern recognition conformal hit
//
// authors: Lia Lavezzi - INFN Pavia (2012)
//

#include "PndTrkConformalHit.h"

#include <iostream>

// ROOT
#include "TArc.h"
#include "TMarker.h"
#include "TMath.h"

using namespace std;

PndTrkConformalHit::PndTrkConformalHit() : fHit(NULL), fPosition(0., 0.), fIsochrone(-1) {}
 

PndTrkConformalHit::PndTrkConformalHit(PndTrkHit *hit, double u, double v, double rd) : fHit(hit), fPosition(u, v), fIsochrone(rd) {}
 
PndTrkConformalHit::PndTrkConformalHit(PndTrkHit *hit, double u, double v) : fHit(hit), fPosition(u, v), fIsochrone(-1) {}

PndTrkConformalHit::~PndTrkConformalHit() {}


double PndTrkConformalHit::GetDistanceFromTrack(double fitm, double fitp) {
  return TMath::Abs(fPosition.Y() - fitm * fPosition.X() - fitp)/TMath::Sqrt(fitm *fitm + 1);
}

void PndTrkConformalHit::Draw(Color_t color) {

  TMarker *mrk = NULL;
  TArc *arc = NULL;

  switch(fHit->GetIRegion()) {
  case 0: 
    {
      mrk = new TMarker(fPosition.X(), fPosition.Y(), 21);
      break;
    }
  case 1: 
    {
      mrk = new TMarker(fPosition.X(), fPosition.Y(), 25);
      break;
    }
  case 2: 
  case 6:
  case 3:
  case 7: 
    {
      arc = new TArc(fPosition.X(), fPosition.Y(), fIsochrone); // TUBERADIUS);
      break;
    }
  case 4:
  case 5: 
    {
      //      arc = new TArc(fPosition.X(), fPosition.Y(), TUBERADIUS); // CHECK skew
      mrk = new TMarker(fPosition.X(), fPosition.Y(), 3);
      break;
    }
  }

  if(mrk) {
    mrk->SetMarkerColor(color);
    mrk->Draw("SAME");
  }
  if(arc) {
    arc->SetFillStyle(0);
    arc->SetLineColor(color);
    arc->Draw("SAME");
  }


}

void PndTrkConformalHit::Print() {

  cout << "conformal hit ###############################" << endl;
  cout << "hitID " << fHit->GetHitID() << " detID " << fHit->GetDetectorID() << endl;
  cout << "isochrone " << fIsochrone << endl;
  fPosition.Print();
}


ClassImp(PndTrkConformalHit)