Line data Source code
1 : /*************************************************************************
2 : * Copyright(c) 2004, ALICE Experiment at CERN, All rights reserved. *
3 : * *
4 : * Author: The ALICE Off-line Project. *
5 : * Contributors are mentioned in the code where appropriate. *
6 : * *
7 : * Permission to use, copy, modify and distribute this software and its *
8 : * documentation strictly for non-commercial purposes is hereby granted *
9 : * without fee, provided that the above copyright notice appears in all *
10 : * copies and that both the copyright notice and this permission notice *
11 : * appear in the supporting documentation. The authors make no claims *
12 : * about the suitability of this software for any purpose. It is *
13 : * provided "as is" without express or implied warranty. *
14 : *************************************************************************
15 : * $Id$ */
16 : /**
17 : * @file AliFMDBaseDigit.cxx
18 : * @author Christian Holm Christensen <cholm@nbi.dk>
19 : * @date Mon Mar 27 12:37:41 2006
20 : * @brief Digits for the FMD
21 : * @ingroup FMD_base
22 : */
23 : //////////////////////////////////////////////////////////////////////
24 : //
25 : // Digits classes for the FMD
26 : //
27 : // Digits consists of
28 : // - Detector #
29 : // - Ring ID
30 : // - Sector #
31 : // - Strip #
32 : // - ADC count in this channel
33 : //
34 : // Digits consists of
35 : // - Detector #
36 : // - Ring ID
37 : // - Sector #
38 : // - Strip #
39 : // - Total energy deposited in the strip
40 : // - ADC count in this channel
41 : //
42 : // As the Digits and SDigits have so much in common, the classes
43 : // AliFMDDigit and AliFMDSDigit are implemented via a base
44 : // class AliFMDBaseDigit.
45 : ///
46 : // +-----------------+
47 : // | AliFMDBaseDigit |
48 : // +-----------------+
49 : // ^
50 : // |
51 : // +------------+
52 : // | |
53 : // +-------------+ +--------------+
54 : // | AliFMDDigit | | AliFMDSDigit |
55 : // +-------------+ +--------------+
56 : //
57 : // (Note, that I'd really would have liked to implement AliFMDHit as a
58 : // derived class from some base class - say AliFMDStrip, and the Digit
59 : // classes would (eventually) have derived from that as well.
60 : // However, ROOT doesn't do well with multiple inheritance, so I chose
61 : // not to anyway).
62 : //
63 : // Latest changes by Christian Holm Christensen
64 : //
65 : //////////////////////////////////////////////////////////////////////
66 :
67 : #include "AliFMDBaseDigit.h" // ALIFMDDIGIT_H
68 : #include "AliFMDStripIndex.h"
69 : #include "Riostream.h" // ROOT_Riostream
70 : // #include <TString.h>
71 : // #include <AliLog.h>
72 : #include "AliFMDDebug.h" // Better debug macros
73 :
74 : //====================================================================
75 : using std::cout;
76 : using std::flush;
77 12 : ClassImp(AliFMDBaseDigit)
78 : #if 0
79 : ; // This is here to keep Emacs from indenting the next line
80 : #endif
81 :
82 : //____________________________________________________________________
83 204878 : AliFMDBaseDigit::AliFMDBaseDigit()
84 204878 : : fDetector(0),
85 204878 : fRing('\0'),
86 204878 : fSector(0),
87 204878 : fStrip(0),
88 204878 : fName("")
89 614634 : {
90 : //
91 : // CTOR
92 : //
93 204878 : }
94 :
95 : //____________________________________________________________________
96 : AliFMDBaseDigit::AliFMDBaseDigit(UShort_t detector,
97 : Char_t ring,
98 : UShort_t sector,
99 : UShort_t strip)
100 409706 : : AliDigit(),
101 409706 : fDetector(detector),
102 409706 : fRing(ring),
103 409706 : fSector(sector),
104 409706 : fStrip(strip),
105 409706 : fName("")
106 1229118 : {
107 : //
108 : // Creates a base data digit object
109 : //
110 : // Parameters
111 : //
112 : // detector Detector # (1, 2, or 3)
113 : // ring Ring ID ('I' or 'O')
114 : // sector Sector # (For inner/outer rings: 0-19/0-39)
115 : // strip Strip # (For inner/outer rings: 0-511/0-255)
116 409706 : }
117 :
118 : //____________________________________________________________________
119 : AliFMDBaseDigit::AliFMDBaseDigit(Int_t* tracks,
120 : UShort_t detector,
121 : Char_t ring,
122 : UShort_t sector,
123 : UShort_t strip)
124 0 : : AliDigit(tracks),
125 0 : fDetector(detector),
126 0 : fRing(ring),
127 0 : fSector(sector),
128 0 : fStrip(strip),
129 0 : fName("")
130 0 : {
131 : //
132 : // Creates a base data digit object
133 : //
134 : // Parameters
135 : //
136 : // tracks Array of 3 track labels
137 : // detector Detector # (1, 2, or 3)
138 : // ring Ring ID ('I' or 'O')
139 : // sector Sector # (For inner/outer rings: 0-19/0-39)
140 : // strip Strip # (For inner/outer rings: 0-511/0-255)
141 0 : }
142 :
143 : //____________________________________________________________________
144 : void
145 : AliFMDBaseDigit::Print(Option_t* /* option*/) const
146 : {
147 : // Print digit to standard out
148 0 : cout << ClassName() << ": FMD" << fDetector << fRing
149 0 : << '[' << std::setw(2) << fSector
150 0 : << ',' << std::setw(3) << fStrip << ']' << flush;
151 0 : }
152 :
153 : //____________________________________________________________________
154 : const char*
155 : AliFMDBaseDigit::GetName() const
156 : {
157 : // Get the name of a FMD digit.
158 0 : if (fName.IsNull())
159 0 : fName = Form("FMD%d%c[%2d,%3d]", fDetector, fRing, fSector, fStrip);
160 0 : return fName.Data();
161 : }
162 : #define fMaxStrips 512
163 : #define fMaxSectors 40
164 : #define fMaxRings 2
165 :
166 : //____________________________________________________________________
167 : ULong_t
168 : AliFMDBaseDigit::Hash() const
169 : {
170 : // Calculate a hash value based on the detector coordinates.
171 : #if 1
172 0 : return AliFMDStripIndex::Pack(fDetector, fRing, fSector, fStrip);
173 : #else
174 : size_t ringi = (fRing == 'I' || fRing == 'i' ? 0 : 1);
175 : return fStrip + fMaxStrips *
176 : (fSector + fMaxSectors * (ringi + fMaxRings * (fDetector - 1)));
177 : #endif
178 : }
179 :
180 :
181 : //____________________________________________________________________
182 : Int_t
183 : AliFMDBaseDigit::Compare(const TObject* o) const
184 : {
185 : // Compare to other digit. If the passed pointer to TObject does
186 : // not point to an object of class AliFMDBaseDigit (or one of it's
187 : // derived classes), then a fatal exception is made.
188 : //
189 : // Returns -1, if this object's detector coordinates are smaller
190 : // than passed object's detector coordinates.
191 : //
192 : // Returns 0, if this object's detector coordinates is the same as
193 : // passed object's detector coordinates.
194 : //
195 : // Returns 1, if this object's detector coordinates are larger
196 : // than passed object's detector coordinates.
197 0 : if (!o)
198 0 : AliFatal("Can not compare to NULL!");
199 0 : if (o->IsA() != AliFMDBaseDigit::Class())
200 0 : AliFatal(Form("Cannot compare to a %s object", o->ClassName()));
201 : // AliFMDBaseDigit* of = static_cast<AliFMDBaseDigit*>(o);
202 0 : if (Hash() == o->Hash()) return 0;
203 0 : if (Hash() < o->Hash()) return -1;
204 0 : return 1;
205 0 : }
206 :
207 : //____________________________________________________________________
208 : void
209 : AliFMDBaseDigit::AddTrack(Int_t track)
210 : {
211 : //
212 : // Add a track referenc
213 : //
214 : // Parameters:
215 : // trackno The track number
216 : //
217 648 : if (fTracks[0] == -1) fTracks[0] = track;
218 12 : else if (fTracks[1] == -1) fTracks[1] = track;
219 0 : else if (fTracks[2] == -1) fTracks[2] = track;
220 : else
221 0 : AliFMDDebug(1, ("While adding track label to %s for %s: "
222 : "All 3 track labels used, can't add "
223 : "reference to track %d",
224 : ClassName(), GetName(), track));
225 218 : }
226 :
227 : //____________________________________________________________________
228 : UShort_t
229 : AliFMDBaseDigit::GetNTrack() const
230 : {
231 : //
232 : // Get the number of track references (max 3)
233 : //
234 : //
235 : // Return:
236 : // Number of valid track references.
237 : //
238 736 : for (Int_t i = 3; i > 0; i--)
239 421 : if (fTracks[i-1] != -1) return i;
240 0 : return 0;
241 106 : }
242 :
243 :
244 : //____________________________________________________________________
245 : //
246 : // EOF
247 : //
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