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1a1fdef7 | 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 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //____________________________________________________________________ | |
19 | // | |
20 | // Utility class to help implement the FMD geometry. This provides | |
21 | // the interface for the concrete geometry implementations of the FMD | |
22 | // sub-detectors. | |
23 | // | |
24 | // The AliFMDGeometry object owns the AliFMDDetector objects | |
25 | // | |
26 | // Latest changes by Christian Holm Christensen | |
27 | // | |
28 | #include "AliFMDDetector.h" // ALIFMDSUBDETECTOR_H | |
29 | #include "AliFMDRing.h" // ALIFMDRING_H | |
1a1fdef7 | 30 | |
31 | //==================================================================== | |
32 | ClassImp(AliFMDDetector) | |
33 | #if 0 | |
34 | ; // This is here to keep Emacs for indenting the next line | |
35 | #endif | |
36 | ||
37 | //____________________________________________________________________ | |
38 | AliFMDDetector::AliFMDDetector(Int_t id, AliFMDRing* inner, AliFMDRing* outer) | |
39 | : TNamed(Form("FMD%d", id), "Forward multiplicity ring"), | |
40 | fId(id), | |
41 | fInner(inner), | |
42 | fOuter(outer) | |
43 | { | |
088f8e79 | 44 | // Constructor |
45 | // | |
46 | // ID Id of detector (1,2, or 3) | |
47 | // INNER Inner ring geometry | |
48 | // OUTER Outer ring geometry (if any) | |
49 | // | |
1a1fdef7 | 50 | SetHoneycombThickness(); |
51 | SetAlThickness(); | |
52 | SetInnerHoneyLowR(0); | |
53 | SetInnerHoneyHighR(0); | |
54 | SetInnerZ(0); | |
55 | SetOuterZ(0); | |
56 | SetOuterHoneyLowR(0); | |
57 | SetOuterHoneyHighR(0); | |
58 | } | |
59 | ||
088f8e79 | 60 | //____________________________________________________________________ |
61 | AliFMDDetector::AliFMDDetector(const AliFMDDetector& other) | |
62 | : TNamed(other), | |
63 | fId(other.fId), | |
64 | fInner(other.fInner), | |
65 | fOuter(other.fOuter) | |
66 | { | |
67 | // Copy constructor | |
68 | SetHoneycombThickness(other.GetHoneycombThickness()); | |
69 | SetAlThickness(other.GetAlThickness()); | |
70 | SetInnerHoneyLowR(other.GetInnerHoneyLowR()); | |
71 | SetInnerHoneyHighR(other.GetInnerHoneyHighR()); | |
72 | SetInnerZ(other.GetInnerZ()); | |
73 | SetOuterZ(other.GetOuterZ()); | |
74 | SetOuterHoneyLowR(other.GetOuterHoneyLowR()); | |
75 | SetOuterHoneyHighR(other.GetOuterHoneyHighR()); | |
76 | } | |
77 | ||
78 | //____________________________________________________________________ | |
79 | AliFMDDetector& | |
80 | AliFMDDetector::operator=(const AliFMDDetector& other) | |
81 | { | |
82 | // Assignment operator | |
83 | SetName(other.GetName()); | |
84 | SetTitle(other.GetTitle()); | |
85 | fId = other.fId; | |
86 | fInner = other.fInner; | |
87 | fOuter = other.fOuter; | |
88 | SetHoneycombThickness(other.GetHoneycombThickness()); | |
89 | SetAlThickness(other.GetAlThickness()); | |
90 | SetInnerHoneyLowR(other.GetInnerHoneyLowR()); | |
91 | SetInnerHoneyHighR(other.GetInnerHoneyHighR()); | |
92 | SetInnerZ(other.GetInnerZ()); | |
93 | SetOuterZ(other.GetOuterZ()); | |
94 | SetOuterHoneyLowR(other.GetOuterHoneyLowR()); | |
95 | SetOuterHoneyHighR(other.GetOuterHoneyHighR()); | |
96 | return *this; | |
97 | } | |
98 | ||
1a1fdef7 | 99 | //____________________________________________________________________ |
100 | void | |
101 | AliFMDDetector::Init() | |
102 | { | |
088f8e79 | 103 | // Initialize. |
1a1fdef7 | 104 | if (fInner) { |
105 | SetInnerHoneyLowR(fInner->GetLowR() + 1.); | |
106 | SetInnerHoneyHighR(fInner->GetHighR() + 1.); | |
107 | } | |
108 | if (fOuter) { | |
109 | SetOuterHoneyLowR(fOuter->GetLowR() + 1.); | |
110 | SetOuterHoneyHighR(fOuter->GetHighR() + 1.); | |
111 | } | |
112 | ||
113 | } | |
114 | ||
115 | //____________________________________________________________________ | |
116 | AliFMDRing* | |
117 | AliFMDDetector::GetRing(Char_t id) const | |
118 | { | |
088f8e79 | 119 | // Get the specified ring |
120 | // | |
121 | // ID Id of ring ('I' or 'O') | |
122 | // | |
1a1fdef7 | 123 | switch (id) { |
124 | case 'i': | |
125 | case 'I': return GetInner(); | |
126 | case 'o': | |
127 | case 'O': return GetOuter(); | |
128 | } | |
129 | return 0; | |
130 | } | |
131 | ||
132 | //____________________________________________________________________ | |
133 | Double_t | |
134 | AliFMDDetector::GetRingZ(Char_t id) const | |
135 | { | |
088f8e79 | 136 | // Get the z-coordinate specified ring |
137 | // | |
138 | // ID Id of ring ('I' or 'O') | |
139 | // | |
1a1fdef7 | 140 | switch (id) { |
141 | case 'i': | |
142 | case 'I': return GetInnerZ(); | |
143 | case 'o': | |
144 | case 'O': return GetOuterZ(); | |
145 | } | |
146 | return 0; | |
147 | } | |
148 | //____________________________________________________________________ | |
149 | void | |
150 | AliFMDDetector::Detector2XYZ(Char_t ring, | |
151 | UShort_t sector, | |
152 | UShort_t strip, | |
153 | Double_t& x, | |
154 | Double_t& y, | |
155 | Double_t& z) const | |
156 | { | |
088f8e79 | 157 | // Translate detector coordinates (this,ring,sector,strip) into |
158 | // (x,y,z) coordinates (in global reference frame) | |
1a1fdef7 | 159 | AliFMDRing* r = GetRing(ring); |
160 | if (!r) return; | |
161 | z = GetRingZ(ring); | |
162 | r->Detector2XYZ(sector, strip, x, y, z); | |
163 | } | |
164 | ||
54e415a8 | 165 | //____________________________________________________________________ |
166 | Bool_t | |
167 | AliFMDDetector::XYZ2Detector(Double_t x, | |
168 | Double_t y, | |
169 | Double_t z, | |
170 | Char_t& ring, | |
171 | UShort_t& sector, | |
172 | UShort_t& strip) const | |
173 | { | |
088f8e79 | 174 | // Translate (x,y,z) coordinates (in global reference frame) into |
175 | // detector coordinates (this,ring,sector,strip). | |
54e415a8 | 176 | AliFMDRing* rng = 0; |
177 | ring = -1; | |
178 | for (int j = 0; j < 2; j++) { | |
179 | rng = GetRing(j == 0 ? 'I' : 'O'); | |
180 | if (!rng) continue; | |
181 | Double_t ringZ = GetRingZ(j == 0 ? 'I' : 'O'); | |
182 | Double_t modSpace = TMath::Sign(rng->GetModuleSpacing(), ringZ); | |
183 | if (TMath::Abs(z - ringZ) < 0.01 || | |
184 | TMath::Abs(z - ringZ + modSpace) < 0.01) break; | |
185 | rng = 0; | |
186 | } | |
187 | if (rng && rng->XYZ2Detector(x, y, z - GetRingZ(rng->GetId()), | |
188 | sector, strip)) { | |
189 | ring = rng->GetId(); | |
190 | return kTRUE; | |
191 | } | |
192 | return kFALSE; | |
193 | } | |
194 | ||
195 | ||
196 | ||
1a1fdef7 | 197 | //____________________________________________________________________ |
198 | // | |
199 | // EOF | |
200 | // |