StFmsGeometry.h

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// $Id$
//
// $Log$
#ifndef STROOT_STFMSPOINTMAKER_STFMSGEOMETRY_H_
#define STROOT_STFMSPOINTMAKER_STFMSGEOMETRY_H_

#include <map>
#include <vector>

#include "TObject.h"
#include "TVector3.h"

class fmsDetectorPosition_st;
class StFmsDbMaker;

namespace FMSCluster {  // $NMSPC
enum StFmsDetectorId {
  // FPD: forward pion detector, with preshower and shower-maximum detector
  kFpdNorth = 0,
  kFpdSouth = 1,
  kFpdNorthPreshower = 2,
  kFpdSouthPreshower = 3,
  kFpdNorthShowerMaxVertical = 4,
  kFpdSouthShowerMaxVertical = 5,
  kFpdNorthShowerMaxHorizontal = 6,
  kFpdSouthShowerMaxHorizontal = 7,
  // FMS: forward meson spectrometer, with four subregions
  kFmsNorthLarge = 8,
  kFmsSouthLarge = 9,
  kFmsNorthSmall = 10,
  kFmsSouthSmall = 11,
  // FHC: forward hadronic calorimeter (future detector)
  kFhcNorth = 12,
  kFhcSouth = 13,
  kFmsInvalidDetectorId = -1
};

class StFmsGeometry : public TObject {
 public:
  StFmsGeometry();
  ~StFmsGeometry();
  Bool_t initialize(StFmsDbMaker* fmsDbMaker);
  Float_t xOffset(Int_t detectorId) const;
  Float_t yOffset(Int_t detectorId) const;
  Float_t z(Int_t detectorId) const;
  std::vector<Float_t> towerWidths(Int_t detectorId) const;
  const fmsDetectorPosition_st* find(Int_t detectorId) const;
  TVector3 localToGlobalCoordinates(Double_t x, Double_t y,
                                    Int_t detectorId) const;
  TVector3 columnRowToGlobalCoordinates(Double_t column, Double_t row,
                                        Int_t detectorId) const;
  static Bool_t isNorth(Int_t detectorId);

 private:
  typedef std::map<int, const fmsDetectorPosition_st*> Table;
  StFmsGeometry(const StFmsGeometry&);
  StFmsGeometry& operator=(const StFmsGeometry&);
  Table mPositions;  
  ClassDef(StFmsGeometry, 0)
};  // class StFmsGeometry
}  // namespace FMSCluster
#endif  // STROOT_STFMSPOINTMAKER_STFMSGEOMETRY_H_