AliTPCROC.h

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#ifndef ALITPCROC_H
#define ALITPCROC_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id: AliTPCROC.h,v */


#include <TObject.h>

//_____________________________________________________________________________
class AliTPCROC : public TObject {
 public: 
  enum coordType{ kLx=0, kLy=1, kLz=2, kGx=3, kGy=4, kGz=5};
  static AliTPCROC* Instance();
  AliTPCROC();
  AliTPCROC(const AliTPCROC &roc);
  AliTPCROC &operator = (const AliTPCROC & roc); //assignment operator
  void Init();
  virtual           ~AliTPCROC();
  void GetPositionLocal(UInt_t sector, UInt_t row, UInt_t pad, Float_t *pos);
  void GetPositionGlobal(UInt_t sector, UInt_t row, UInt_t pad, Float_t *pos);
  //
  //    numbering
  UInt_t GetNSectors() const          { return fNSectorsAll;}
  UInt_t GetNRows(UInt_t sector) const { return (sector<fNSectors[1]) ? fNRows[0]:fNRows[1];}
  UInt_t GetNChannels(UInt_t sector) const { return (sector<fNSectors[1]) ? fNChannels[0]:fNChannels[1];}
  UInt_t GetNPads(UInt_t sector,UInt_t row) const {
    UInt_t irow=(row<GetNRows(sector))?row:(GetNRows(sector)-1);
    return (sector<fNSectors[1]) ? fNPads[0][irow]:fNPads[1][irow];}
  const UInt_t * GetRowIndexes(UInt_t sector) const {return (sector<fNSectors[1]) ? fRowPosIndex[0]:fRowPosIndex[1];}
  //
  //get sector parameters
  //
  Float_t  GetInnerRadiusLow() const {return fInnerRadiusLow;}
  Float_t  GetInnerRadiusUp() const {return fInnerRadiusUp;}
  Float_t  GetOuterRadiusLow() const {return fOuterRadiusLow;}
  Float_t  GetOuterRadiusUp() const {return fOuterRadiusUp;}
  Float_t  GetInnerFrameSpace() const {return fInnerFrameSpace;}
  Float_t  GetOuterFrameSpace() const {return fOuterFrameSpace;}
  Float_t  GetInnerWireMount() const {return fInnerWireMount;}
  Float_t  GetOuterWireMount() const {return fOuterWireMount;}
  Float_t  GetInnerAngle() const {return fInnerAngle;}
  Float_t  GetOuterAngle() const {return fOuterAngle;}
  UInt_t    GetNInnerSector() const {return fNSectors[0];}
  UInt_t    GetNOuterSector() const {return fNSectors[1];}
  UInt_t    GetNSector() const {return fNSectorsAll;}
  Float_t  GetZLength(Int_t sector) const {return (sector<35) ? fZLength-0.275 : fZLength-0.302;}
  //
  // get pad row parameters
  //
  Float_t GetPadRowRadiiLow(UInt_t irow) const {return ( irow<fNRowLow ) ? fPadRowLow[irow]: 0;} //get the pad row (irow) radii
  Float_t GetPadRowRadiiUp(UInt_t irow) const {return ( irow<fNRowUp ) ? fPadRowUp[irow]: 0;}   //get the pad row (irow) radii
  Float_t GetPadRowRadii(UInt_t isec, UInt_t irow) const {
    return ( (isec < fNSectors[0]) ?GetPadRowRadiiLow(irow):GetPadRowRadiiUp(irow));}
  //
  static UInt_t GetTPCUniqueID(UInt_t sector, UInt_t row, UInt_t pad){UInt_t uid=pad+row*140+sector*140*159; return uid; }  // unique Id can be used for absolute adressing of the TPC element
  static Float_t GetIdealPosition(UInt_t sector, UInt_t row, UInt_t pad, coordType coord);
protected:
  //
  //     number of pads
  //
  void   SetGeometry();    // set geometry parameters
  UInt_t  fNSectorsAll;     
  UInt_t  fNSectors[2];     
  UInt_t  fNRows[2];        
  UInt_t  fNChannels[2];    
  UInt_t *fNPads[2];        
  UInt_t *fRowPosIndex[2];  
  //
  //
  //---------------------------------------------------------------------
  //   ALICE TPC sector geometry
  //--------------------------------------------------------------------
  Float_t fInnerRadiusLow;    
  Float_t fInnerRadiusUp;     
  Float_t fOuterRadiusUp;     
  Float_t fOuterRadiusLow;    
  Float_t fInnerFrameSpace;   
  Float_t fOuterFrameSpace;   
  Float_t fInnerWireMount;    
  Float_t fOuterWireMount;    
  Float_t fZLength;           
  Float_t fInnerAngle;        
  Float_t fOuterAngle;        
  //
  //---------------------------------------------------------------------
  //   ALICE TPC wires  geometry - for GEM we can consider that it is gating
  //--------------------------------------------------------------------
  UInt_t   fNInnerWiresPerPad; 
  Float_t fInnerWWPitch;      
  UInt_t   fInnerDummyWire;    
  Float_t fInnerOffWire;      
  Float_t fRInnerFirstWire;   
  Float_t fRInnerLastWire;    
  Float_t fLastWireUp1;     
  UInt_t   fNOuter1WiresPerPad; 
  UInt_t   fNOuter2WiresPerPad; 
  Float_t fOuterWWPitch;      
  UInt_t   fOuterDummyWire;    
  Float_t fOuterOffWire;      
  Float_t fROuterFirstWire;   
  Float_t fROuterLastWire;    
  //---------------------------------------------------------------------
  //   ALICE TPC pad parameters
  //--------------------------------------------------------------------
  Float_t   fInnerPadPitchLength;    
  Float_t   fInnerPadPitchWidth;     
  Float_t   fInnerPadLength;         
  Float_t   fInnerPadWidth;          
  Float_t   fOuter1PadPitchLength;    
  Float_t   fOuter2PadPitchLength;    
  Float_t   fOuterPadPitchWidth;     
  Float_t   fOuter1PadLength;         
  Float_t   fOuter2PadLength;         
  Float_t   fOuterPadWidth;          
  //
  UInt_t     fNRowLow;           
  UInt_t     fNRowUp1;            
  UInt_t     fNRowUp2;            
  UInt_t     fNRowUp;            
  UInt_t     fNtRows;            
  Float_t   fPadRowLow[100]; 
  Float_t   fPadRowUp[100];  
  UInt_t     fNPadsLow[100];  
  UInt_t     fNPadsUp[100];   
  Float_t   fYInner[100];     
  Float_t   fYOuter[100];     
 protected:
  static AliTPCROC*   fgInstance; 
  ClassDef(AliTPCROC,0)    //  TPC ROC class
};

#endif