1 /**************************************************************************
2 * Copyright(c) 2004, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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8 * documentation strictly for non-commercial purposes is hereby granted *
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12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 /** @file AliFMDBaseDigit.cxx
17 @author Christian Holm Christensen <cholm@nbi.dk>
18 @date Mon Mar 27 12:37:41 2006
19 @brief Digits for the FMD
22 //////////////////////////////////////////////////////////////////////
24 // Digits classes for the FMD
31 // - ADC count in this channel
38 // - Total energy deposited in the strip
39 // - ADC count in this channel
41 // As the Digits and SDigits have so much in common, the classes
42 // AliFMDDigit and AliFMDSDigit are implemented via a base
43 // class AliFMDBaseDigit.
45 // +-----------------+
46 // | AliFMDBaseDigit |
47 // +-----------------+
52 // +-------------+ +--------------+
53 // | AliFMDDigit | | AliFMDSDigit |
54 // +-------------+ +--------------+
56 // (Note, that I'd really would have liked to implement AliFMDHit as a
57 // derived class from some base class - say AliFMDStrip, and the Digit
58 // classes would (eventually) have derived from that as well.
59 // However, ROOT doesn't do well with multiple inheritance, so I chose
62 // Latest changes by Christian Holm Christensen
64 //////////////////////////////////////////////////////////////////////
66 #include "AliFMDBaseDigit.h" // ALIFMDDIGIT_H
67 #include "AliFMDStripIndex.h"
68 #include "Riostream.h" // ROOT_Riostream
69 // #include <TString.h>
70 // #include <AliLog.h>
71 #include "AliFMDDebug.h" // Better debug macros
73 //====================================================================
74 ClassImp(AliFMDBaseDigit)
76 ; // This is here to keep Emacs from indenting the next line
79 //____________________________________________________________________
80 AliFMDBaseDigit::AliFMDBaseDigit()
88 //____________________________________________________________________
89 AliFMDBaseDigit::AliFMDBaseDigit(UShort_t detector,
101 // Creates a base data digit object
105 // detector Detector # (1, 2, or 3)
106 // ring Ring ID ('I' or 'O')
107 // sector Sector # (For inner/outer rings: 0-19/0-39)
108 // strip Strip # (For inner/outer rings: 0-511/0-255)
111 //____________________________________________________________________
112 AliFMDBaseDigit::AliFMDBaseDigit(Int_t* tracks,
125 // Creates a base data digit object
129 // tracks Array of 3 track labels
130 // detector Detector # (1, 2, or 3)
131 // ring Ring ID ('I' or 'O')
132 // sector Sector # (For inner/outer rings: 0-19/0-39)
133 // strip Strip # (For inner/outer rings: 0-511/0-255)
136 //____________________________________________________________________
138 AliFMDBaseDigit::Print(Option_t* /* option*/) const
140 // Print digit to standard out
141 cout << ClassName() << ": " << GetName() << flush;
144 //____________________________________________________________________
146 AliFMDBaseDigit::GetName() const
148 // Get the name of a FMD digit.
150 fName = Form("FMD%d%c[%2d,%3d]", fDetector, fRing, fSector, fStrip);
153 #define fMaxStrips 512
154 #define fMaxSectors 40
157 //____________________________________________________________________
159 AliFMDBaseDigit::Hash() const
161 // Calculate a hash value based on the detector coordinates.
163 return AliFMDStripIndex::Pack(fDetector, fRing, fSector, fStrip);
165 size_t ringi = (fRing == 'I' || fRing == 'i' ? 0 : 1);
166 return fStrip + fMaxStrips *
167 (fSector + fMaxSectors * (ringi + fMaxRings * (fDetector - 1)));
172 //____________________________________________________________________
174 AliFMDBaseDigit::Compare(const TObject* o) const
176 // Compare to other digit. If the passed pointer to TObject does
177 // not point to an object of class AliFMDBaseDigit (or one of it's
178 // derived classes), then a fatal exception is made.
180 // Returns -1, if this object's detector coordinates are smaller
181 // than passed object's detector coordinates.
183 // Returns 0, if this object's detector coordinates is the same as
184 // passed object's detector coordinates.
186 // Returns 1, if this object's detector coordinates are larger
187 // than passed object's detector coordinates.
189 AliFatal("Can not compare to NULL!");
190 if (o->IsA() != AliFMDBaseDigit::Class())
191 AliFatal(Form("Cannot compare to a %s object", o->ClassName()));
192 // AliFMDBaseDigit* of = static_cast<AliFMDBaseDigit*>(o);
193 if (Hash() == o->Hash()) return 0;
194 if (Hash() < o->Hash()) return -1;
198 //____________________________________________________________________
200 AliFMDBaseDigit::AddTrack(Int_t track)
202 if (fTracks[0] == -1) fTracks[0] = track;
203 else if (fTracks[1] == -1) fTracks[1] = track;
204 else if (fTracks[2] == -1) fTracks[2] = track;
206 AliWarning(Form("While adding track label to %s for %s: "
207 "All 3 track labels used, cannot add reference to track %d",
208 ClassName(), GetName(), track));
211 //____________________________________________________________________
213 AliFMDBaseDigit::GetNTrack() const
215 for (Int_t i = 3; i > 0; i--)
216 if (fTracks[i-1] != -1) return i;
221 //____________________________________________________________________