TRD/AliTRDpadPlane.h

   1 #ifndef ALITRDPADPLANE_H
   2 #define ALITRDPADPLANE_H
   3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 /* $Id: AliTRDpadPlane.h,v */
   7
   8 //////////////////////////////////////////////////
   9 //                                              //
  10 //  TRD pad plane class                         //
  11 //                                              //
  12 //  Contains the information on pad postions,   //
  13 //  pad dimensions, tilting angle, etc.         //
  14 //  It also provides methods to identify the    //
  15 //  current pad number from global coordinates. //
  16 //                                              //
  17 //////////////////////////////////////////////////
  18
  19 #include <TObject.h>
  20
  21 class AliTRDgeometry;
  22
  23 //_____________________________________________________________________________
  24 class AliTRDpadPlane : public TObject {
  25
  26  public:
  27
  28   AliTRDpadPlane();
  29   AliTRDpadPlane(Int_t p, Int_t c);
  30   AliTRDpadPlane(const AliTRDpadPlane &p);
  31   virtual           ~AliTRDpadPlane();
  32   AliTRDpadPlane    &operator=(const AliTRDpadPlane &p);
  33   virtual void       Copy(TObject &p) const;
  34
  35   Int_t    GetPadRowNumber(Double_t z) const;
  36   Int_t    GetPadColNumber(Double_t rphi, Double_t rowOffset) const;
  37   Double_t GetTiltOffset(Double_t rowOffset) const
  38                                              { return fTiltingTan * (rowOffset - 0.5*fLengthIPad); };
  39   Double_t GetPadRowOffset(Int_t row, Double_t z) const
  40                                              { if ((row < 0) || (row >= fNrows))
  41                                                  return -1.0;
  42                                                else
  43                                                  return fPadRow[row] - z;    };
  44
  45   Double_t GetPadColOffset(Int_t col, Double_t rphi) const
  46                                              { if ((col < 0) || (col >= fNcols))
  47                                                  return -1.0;
  48                                                else
  49                                                  return fPadCol[col] - rphi; };
  50
  51   Double_t GetTiltingAngle() const           { return fTiltingAngle; };
  52
  53   Int_t    GetNrows() const                  { return fNrows;        };
  54   Int_t    GetNcols() const                  { return fNcols;        };
  55
  56   Double_t GetRow0() const                   { return fPadRow[0];    };
  57   Double_t GetCol0() const                   { return fPadCol[0];    };
  58
  59   Double_t GetRowEnd() const                 { return fPadRow[fNrows-1] - fLengthOPad; };
  60   Double_t GetColEnd() const                 { return fPadCol[fNcols-1] - fWidthOPad;  };
  61
  62   Double_t GetRowPos(Int_t row) const        { return fPadRow[row];  };
  63   Double_t GetColPos(Int_t col) const        { return fPadCol[col];  };
  64
  65   Double_t GetRowSize(Int_t row) const       { if ((row == 0) || (row == fNrows-1))
  66                                                  return fLengthOPad;
  67                                                else
  68                                                  return fLengthIPad; };
  69   Double_t GetColSize(Int_t col) const       { if ((col == 0) || (col == fNcols-1))
  70                                                  return fWidthOPad;
  71                                                else
  72                                                   return fWidthIPad; };
  73   Double_t GetLengthRim() const              { return fLengthRim;    };
  74
  75  protected:
  76
  77   AliTRDgeometry *fGeo;       //! TRD geometry
  78
  79   Int_t     fPla;             //  Plane number
  80   Int_t     fCha;             //  Chamber number
  81
  82   Double_t  fLength;          //  Length of pad plane in z-direction (row)
  83   Double_t  fWidth;           //  Width of pad plane in rphi-direction (col)
  84
  85   Double_t  fLengthRim;       //  Length of the rim in z-direction (row)
  86   Double_t  fWidthRim;        //  Width of the rim in rphi-direction (col)
  87
  88   Double_t  fLengthOPad;      //  Length of an outer pad in z-direction (row)
  89   Double_t  fWidthOPad;       //  Width of an outer pad in rphi-direction (col)
  90
  91   Double_t  fLengthIPad;      //  Length of an inner pad in z-direction (row)
  92   Double_t  fWidthIPad;       //  Width of an inner pad in rphi-direction (col)
  93
  94   Double_t  fRowSpacing;      //  Spacing between the pad rows
  95   Double_t  fColSpacing;      //  Spacing between the pad columns
  96
  97   Int_t     fNrows;           //  Number of rows
  98   Int_t     fNcols;           //  Number of columns
  99
 100   Double_t  fTiltingAngle;    //  Pad tilting angle
 101   Double_t  fTiltingTan;      //  Tangens of pad tilting angle
 102
 103   Double_t *fPadRow;          //! Pad border positions in row direction
 104   Double_t *fPadCol;          //! Pad border positions in column direction
 105
 106   ClassDef(AliTRDpadPlane,2)  //  TRD ROC pad plane
 107
 108 };
 109
 110 #endif