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 */
8 ////////////////////////////////////////////////////////////////////////////
10 // TRD pad plane class //
12 // Contains the information on ideal pad positions, pad dimensions, //
13 // tilting angle, etc. //
14 // It also provides methods to identify the current pad number from //
15 // local tracking coordinates. //
17 ////////////////////////////////////////////////////////////////////////////
21 //_____________________________________________________________________________
22 class AliTRDpadPlane : public TObject {
27 AliTRDpadPlane(Int_t layer, Int_t stack);
28 AliTRDpadPlane(const AliTRDpadPlane &p);
29 virtual ~AliTRDpadPlane();
30 AliTRDpadPlane &operator=(const AliTRDpadPlane &p);
31 virtual void Copy(TObject &p) const;
33 void SetLayer(Int_t l) { fLayer = l; };
34 void SetStack(Int_t s) { fStack = s; };
35 void SetRowSpacing(Double_t s) { fRowSpacing = s; };
36 void SetColSpacing(Double_t s) { fColSpacing = s; };
37 void SetLengthRim(Double_t l) { fLengthRim = l; };
38 void SetWidthRim(Double_t w) { fWidthRim = w; };
39 void SetNcols(Int_t n) { fNcols = n;
40 if (fPadCol) delete[] fPadCol;
41 fPadCol = new Double_t[fNcols]; };
42 void SetNrows(Int_t n) { fNrows = n;
43 if (fPadRow) delete[] fPadRow;
44 fPadRow = new Double_t[fNrows]; };
45 void SetPadCol(Int_t ic, Double_t c) { if (ic < fNcols) fPadCol[ic] = c; };
46 void SetPadRow(Int_t ir, Double_t r) { if (ir < fNrows) fPadRow[ir] = r; };
47 void SetLength(Double_t l) { fLength = l; };
48 void SetWidth(Double_t w) { fWidth = w; };
49 void SetLengthOPad(Double_t l) { fLengthOPad = l; };
50 void SetWidthOPad(Double_t w) { fWidthOPad = w; };
51 void SetLengthIPad(Double_t l) { fLengthIPad = l; };
52 void SetWidthIPad(Double_t w) { fWidthIPad = w; };
53 void SetPadRowSMOffset(Double_t o) { fPadRowSMOffset = o; };
54 void SetTiltingAngle(Double_t t);
56 Int_t GetPadRowNumber(Double_t z) const;
57 Int_t GetPadRowNumberROC(Double_t z) const;
58 Int_t GetPadColNumber(Double_t rphi) const;
60 Double_t GetTiltOffset(Double_t rowOffset) const
61 { return fTiltingTan * (rowOffset - 0.5*fLengthIPad); };
63 Double_t GetPadRowOffset(Int_t row, Double_t z) const
64 { if ((row < 0) || (row >= fNrows))
67 return fPadRow[row] + fPadRowSMOffset - z; };
68 Double_t GetPadRowOffsetROC(Int_t row, Double_t z) const
69 { if ((row < 0) || (row >= fNrows))
72 return fPadRow[row] - z; };
74 Double_t GetPadColOffset(Int_t col, Double_t rphi) const
75 { if ((col < 0) || (col >= fNcols))
78 return rphi - fPadCol[col]; };
80 Double_t GetTiltingAngle() const { return fTiltingAngle; };
82 Int_t GetNrows() const { return fNrows; };
83 Int_t GetNcols() const { return fNcols; };
85 Double_t GetRow0() const { return fPadRow[0] + fPadRowSMOffset; };
86 Double_t GetRow0ROC() const { return fPadRow[0]; };
87 Double_t GetCol0() const { return fPadCol[0]; };
89 Double_t GetRowEnd() const { return fPadRow[fNrows-1] - fLengthOPad + fPadRowSMOffset; };
90 Double_t GetRowEndROC() const { return fPadRow[fNrows-1] - fLengthOPad; };
91 Double_t GetColEnd() const { return fPadCol[fNcols-1] + fWidthOPad; };
93 Double_t GetRowPos(Int_t row) const { return fPadRow[row] + fPadRowSMOffset; };
94 Double_t GetRowPosROC(Int_t row) const { return fPadRow[row]; };
95 Double_t GetColPos(Int_t col) const { return fPadCol[col]; };
97 Double_t GetRowSize(Int_t row) const { if ((row == 0) || (row == fNrows-1))
100 return fLengthIPad; };
101 Double_t GetColSize(Int_t col) const { if ((col == 0) || (col == fNcols-1))
104 return fWidthIPad; };
106 Double_t GetLengthRim() const { return fLengthRim; };
107 Double_t GetWidthRim() const { return fWidthRim; };
109 Double_t GetRowSpacing() const { return fRowSpacing; };
110 Double_t GetColSpacing() const { return fColSpacing; };
112 Double_t GetLengthOPad() const { return fLengthOPad; };
113 Double_t GetLengthIPad() const { return fLengthIPad; };
115 Double_t GetWidthOPad() const { return fWidthOPad; };
116 Double_t GetWidthIPad() const { return fWidthIPad; };
120 Int_t fLayer; // Layer number
121 Int_t fStack; // Stack number
123 Double_t fLength; // Length of pad plane in z-direction (row)
124 Double_t fWidth; // Width of pad plane in rphi-direction (col)
126 Double_t fLengthRim; // Length of the rim in z-direction (row)
127 Double_t fWidthRim; // Width of the rim in rphi-direction (col)
129 Double_t fLengthOPad; // Length of an outer pad in z-direction (row)
130 Double_t fWidthOPad; // Width of an outer pad in rphi-direction (col)
132 Double_t fLengthIPad; // Length of an inner pad in z-direction (row)
133 Double_t fWidthIPad; // Width of an inner pad in rphi-direction (col)
135 Double_t fRowSpacing; // Spacing between the pad rows
136 Double_t fColSpacing; // Spacing between the pad columns
138 Int_t fNrows; // Number of rows
139 Int_t fNcols; // Number of columns
141 Double_t fTiltingAngle; // Pad tilting angle
142 Double_t fTiltingTan; // Tangens of pad tilting angle
144 Double_t *fPadRow; // Pad border positions in row direction
145 Double_t *fPadCol; // Pad border positions in column direction
147 Double_t fPadRowSMOffset; // To be added to translate local ROC system to local SM system
149 ClassDef(AliTRDpadPlane,5) // TRD ROC pad plane