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4c039060 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, 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 | **************************************************************************/ | |
88cb7938 | 15 | |
16 | /* $Id$ */ | |
17 | ||
d28dcc0d | 18 | ////////////////////////////////////////////////////////////////////////////// |
37c55dc0 | 19 | // // |
d28dcc0d | 20 | // Forward Multiplicity Detector based on Silicon plates // |
fe4da5cc | 21 | // This class contains the base procedures for the Forward Multiplicity // |
22 | // detector // | |
d28dcc0d | 23 | // Detector consists of 6 Si volumes covered pseudorapidity interval // |
24 | // from 1.6 to 6.0. // | |
fe4da5cc | 25 | // // |
26 | //Begin_Html | |
27 | /* | |
d28dcc0d | 28 | <img src="gif/AliFMDClass.gif"> |
fe4da5cc | 29 | </pre> |
30 | <br clear=left> | |
31 | <font size=+2 color=red> | |
32 | <p>The responsible person for this module is | |
d28dcc0d | 33 | <a href="mailto:Alla.Maevskaia@cern.ch">Alla Maevskaia</a>. |
fe4da5cc | 34 | </font> |
35 | <pre> | |
36 | */ | |
37 | //End_Html | |
38 | // // | |
39 | // // | |
40 | /////////////////////////////////////////////////////////////////////////////// | |
41 | ||
b9a2d5e4 | 42 | #define DEBUG |
88cb7938 | 43 | |
44 | #include <Riostream.h> | |
45 | #include <stdlib.h> | |
46 | ||
47 | #include <TClonesArray.h> | |
48 | #include <TFile.h> | |
94de3818 | 49 | #include <TGeometry.h> |
88cb7938 | 50 | #include <TLorentzVector.h> |
51 | #include <TMath.h> | |
52 | #include <TNode.h> | |
b9a2d5e4 | 53 | #include <TTUBE.h> |
d28dcc0d | 54 | #include <TTree.h> |
88cb7938 | 55 | #include <TVirtualMC.h> |
b9a2d5e4 | 56 | |
dc8af42e | 57 | #include "AliDetector.h" |
37c55dc0 | 58 | #include "AliFMDReconstParticles.h" |
88cb7938 | 59 | #include "AliFMDReconstruction.h" |
60 | #include "AliFMDdigit.h" | |
61 | #include "AliFMDhit.h" | |
62 | #include "AliFMDv1.h" | |
63 | #include "AliLoader.h" | |
64 | #include "AliMagF.h" | |
65 | #include "AliRun.h" | |
b9a2d5e4 | 66 | |
dc8af42e | 67 | ClassImp (AliFMD) |
b9a2d5e4 | 68 | //_____________________________________________________________________________ |
dc8af42e | 69 | AliFMD::AliFMD ():AliDetector () |
fe4da5cc | 70 | { |
71 | // | |
72 | // Default constructor for class AliFMD | |
73 | // | |
dc8af42e | 74 | fIshunt = 0; |
75 | fHits = 0; | |
76 | fDigits = 0; | |
cccf369e | 77 | fReconParticles=0; |
fe4da5cc | 78 | } |
dc8af42e | 79 | |
fe4da5cc | 80 | //_____________________________________________________________________________ |
dc8af42e | 81 | AliFMD::AliFMD (const char *name, const char *title): |
82 | AliDetector (name, title) | |
fe4da5cc | 83 | { |
84 | // | |
85 | // Standard constructor for Forward Multiplicity Detector | |
86 | // | |
dc8af42e | 87 | |
fe4da5cc | 88 | // |
89 | // Initialise Hit array | |
dc8af42e | 90 | fHits = new TClonesArray ("AliFMDhit", 1000); |
b9a2d5e4 | 91 | // Digits for each Si disk |
dc8af42e | 92 | fDigits = new TClonesArray ("AliFMDdigit", 1000); |
37c55dc0 | 93 | fReconParticles=new TClonesArray("AliFMDReconstParticles",1000); |
dc8af42e | 94 | gAlice->AddHitList (fHits); |
d1280e40 | 95 | |
dc8af42e | 96 | fIshunt = 0; |
4110645f | 97 | // fMerger = 0; |
dc8af42e | 98 | SetMarkerColor (kRed); |
fe4da5cc | 99 | } |
d28dcc0d | 100 | |
dc8af42e | 101 | //----------------------------------------------------------------------------- |
102 | AliFMD::~AliFMD () | |
d28dcc0d | 103 | { |
dc8af42e | 104 | if (fHits) |
105 | { | |
106 | fHits->Delete (); | |
b9a2d5e4 | 107 | delete fHits; |
cae27883 | 108 | fHits = 0; |
dc8af42e | 109 | } |
110 | if (fDigits) | |
111 | { | |
112 | fDigits->Delete (); | |
cae27883 | 113 | delete fDigits; |
114 | fDigits = 0; | |
dc8af42e | 115 | } |
88cb7938 | 116 | if (fReconParticles) |
dc8af42e | 117 | { |
118 | fReconParticles->Delete (); | |
119 | delete fReconParticles; | |
120 | fReconParticles = 0; | |
121 | } | |
122 | ||
d28dcc0d | 123 | } |
dc8af42e | 124 | |
fe4da5cc | 125 | //_____________________________________________________________________________ |
dc8af42e | 126 | void AliFMD::AddHit (Int_t track, Int_t * vol, Float_t * hits) |
fe4da5cc | 127 | { |
128 | // | |
d28dcc0d | 129 | // Add a hit to the list |
fe4da5cc | 130 | // |
dc8af42e | 131 | TClonesArray & lhits = *fHits; |
132 | new (lhits[fNhits++]) AliFMDhit (fIshunt, track, vol, hits); | |
fe4da5cc | 133 | } |
dc8af42e | 134 | |
fe4da5cc | 135 | //_____________________________________________________________________________ |
dc8af42e | 136 | void AliFMD::AddDigit (Int_t * digits) |
b9a2d5e4 | 137 | { |
138 | // add a real digit - as coming from data | |
139 | ||
88cb7938 | 140 | if (fDigits == 0x0) fDigits = new TClonesArray ("AliFMDdigit", 1000); |
dc8af42e | 141 | TClonesArray & ldigits = *fDigits; |
142 | new (ldigits[fNdigits++]) AliFMDdigit (digits); | |
37c55dc0 | 143 | } |
88cb7938 | 144 | |
b9a2d5e4 | 145 | //_____________________________________________________________________________ |
dc8af42e | 146 | void AliFMD::BuildGeometry () |
fe4da5cc | 147 | { |
148 | // | |
149 | // Build simple ROOT TNode geometry for event display | |
150 | // | |
d28dcc0d | 151 | TNode *node, *top; |
37c55dc0 | 152 | const int kColorFMD = 5; |
fe4da5cc | 153 | // |
dc8af42e | 154 | top = gAlice->GetGeometry ()->GetNode ("alice"); |
fe4da5cc | 155 | |
156 | // FMD define the different volumes | |
dc8af42e | 157 | new TRotMatrix ("rot901", "rot901", 90, 0, 90, 90, 180, 0); |
158 | ||
4110645f | 159 | new TTUBE ("S_FMD0", "FMD volume 0", "void", 4.2, 17.2, 1.5); |
dc8af42e | 160 | top->cd (); |
37c55dc0 | 161 | node = new TNode ("FMD0", "FMD0", "S_FMD0", 0, 0, 62.8, ""); |
dc8af42e | 162 | node->SetLineColor (kColorFMD); |
163 | fNodes->Add (node); | |
164 | ||
4110645f | 165 | new TTUBE ("S_FMD1", "FMD volume 1", "void", 15.4, 28.4, 1.5); |
dc8af42e | 166 | top->cd (); |
4110645f | 167 | node = new TNode ("FMD1", "FMD1", "S_FMD1", 0, 0, 75.2, ""); |
dc8af42e | 168 | node->SetLineColor (kColorFMD); |
169 | fNodes->Add (node); | |
170 | ||
4110645f | 171 | new TTUBE ("S_FMD2", "FMD volume 2", "void", 4.2, 17.2, 1.5); |
dc8af42e | 172 | top->cd (); |
4110645f | 173 | node = new TNode ("FMD2", "FMD2", "S_FMD2", 0, 0, -83.2, ""); |
dc8af42e | 174 | node->SetLineColor (kColorFMD); |
175 | fNodes->Add (node); | |
176 | ||
4110645f | 177 | new TTUBE ("S_FMD3", "FMD volume 3", "void", 15.4, 28.4, 1.5); |
dc8af42e | 178 | top->cd (); |
4110645f | 179 | node = new TNode ("FMD3", "FMD3", "S_FMD3", 0, 0, -75.2, ""); |
dc8af42e | 180 | node->SetLineColor (kColorFMD); |
181 | fNodes->Add (node); | |
182 | ||
4110645f | 183 | new TTUBE ("S_FMD4", "FMD volume 4", "void", 4.2, 17.2, 1.5); |
dc8af42e | 184 | top->cd (); |
4110645f | 185 | node = new TNode ("FMD4", "FMD4", "S_FMD4", 0, 0, -340, ""); |
dc8af42e | 186 | node->SetLineColor (kColorFMD); |
187 | fNodes->Add (node); | |
fe4da5cc | 188 | } |
dc8af42e | 189 | |
fe4da5cc | 190 | //_____________________________________________________________________________ |
46501dfb | 191 | Int_t AliFMD::DistanceToPrimitive (Int_t /*px*/, Int_t /*py*/) |
fe4da5cc | 192 | { |
193 | // | |
194 | // Calculate the distance from the mouse to the FMD on the screen | |
195 | // Dummy routine | |
196 | // | |
197 | return 9999; | |
198 | } | |
dc8af42e | 199 | |
b9a2d5e4 | 200 | //___________________________________________ |
dc8af42e | 201 | void AliFMD::ResetHits () |
b9a2d5e4 | 202 | { |
203 | // Reset number of clusters and the cluster array for this detector | |
dc8af42e | 204 | AliDetector::ResetHits (); |
b9a2d5e4 | 205 | } |
206 | ||
207 | //____________________________________________ | |
dc8af42e | 208 | void AliFMD::ResetDigits () |
b9a2d5e4 | 209 | { |
dc8af42e | 210 | // |
211 | // Reset number of digits and the digits array for this detector | |
37c55dc0 | 212 | AliDetector::ResetDigits (); |
dc8af42e | 213 | // |
b9a2d5e4 | 214 | } |
fe4da5cc | 215 | |
d28dcc0d | 216 | //------------------------------------------------------------------------- |
dc8af42e | 217 | void AliFMD::Init () |
fe4da5cc | 218 | { |
219 | // | |
220 | // Initialis the FMD after it has been built | |
221 | Int_t i; | |
222 | // | |
dc8af42e | 223 | if (fDebug) |
224 | { | |
225 | printf ("\n%s: ", ClassName ()); | |
226 | for (i = 0; i < 35; i++) | |
227 | printf ("*"); | |
228 | printf (" FMD_INIT "); | |
229 | for (i = 0; i < 35; i++) | |
230 | printf ("*"); | |
231 | printf ("\n%s: ", ClassName ()); | |
232 | // | |
233 | // Here the FMD initialisation code (if any!) | |
234 | for (i = 0; i < 80; i++) | |
235 | printf ("*"); | |
236 | printf ("\n"); | |
237 | } | |
b9a2d5e4 | 238 | // |
239 | // | |
46501dfb | 240 | |
fe4da5cc | 241 | } |
d28dcc0d | 242 | //--------------------------------------------------------------------- |
88cb7938 | 243 | void AliFMD::MakeBranch (Option_t * option) |
d28dcc0d | 244 | { |
245 | // Create Tree branches for the FMD. | |
d28dcc0d | 246 | char branchname[10]; |
dc8af42e | 247 | const Int_t kBufferSize = 16000; |
248 | sprintf (branchname, "%s", GetName ()); | |
249 | ||
88cb7938 | 250 | const char *cH = strstr(option,"H"); |
dc8af42e | 251 | const char *cD = strstr(option,"D"); |
252 | const char *cR = strstr(option,"R"); | |
dc8af42e | 253 | |
88cb7938 | 254 | if (cH && (fHits == 0x0)) fHits = new TClonesArray ("AliFMDhit", 1000); |
b9a2d5e4 | 255 | |
88cb7938 | 256 | AliDetector::MakeBranch (option); |
257 | ||
258 | if (cD){ | |
259 | if (fDigits == 0x0) fDigits = new TClonesArray ("AliFMDdigit", 1000); | |
260 | MakeBranchInTree(fLoader->TreeD(), branchname,&fDigits, kBufferSize, 0); | |
dc8af42e | 261 | } |
88cb7938 | 262 | |
dc8af42e | 263 | if (cR){ |
88cb7938 | 264 | if (fReconParticles == 0x0) |
265 | fReconParticles=new TClonesArray("AliFMDReconstParticles",1000); | |
266 | MakeBranchInTree(fLoader->TreeR(), branchname,&fReconParticles, kBufferSize, 0); | |
d28dcc0d | 267 | } |
dc8af42e | 268 | |
d28dcc0d | 269 | } |
dc8af42e | 270 | |
b9a2d5e4 | 271 | //_____________________________________________________________________________ |
dc8af42e | 272 | void AliFMD::SetTreeAddress () |
b9a2d5e4 | 273 | { |
274 | // Set branch address for the Hits and Digits Tree. | |
275 | char branchname[30]; | |
88cb7938 | 276 | |
277 | if (fLoader->TreeH() && (fHits == 0x0)) | |
278 | fHits = new TClonesArray ("AliFMDhit", 1000); | |
279 | ||
dc8af42e | 280 | AliDetector::SetTreeAddress (); |
b9a2d5e4 | 281 | |
282 | TBranch *branch; | |
88cb7938 | 283 | TTree *treeD = fLoader->TreeD(); |
b9a2d5e4 | 284 | |
dc8af42e | 285 | if (treeD) |
286 | { | |
88cb7938 | 287 | if (fDigits == 0x0) fDigits = new TClonesArray ("AliFMDdigit", 1000); |
288 | branch = treeD->GetBranch (branchname); | |
289 | if (branch) | |
290 | branch->SetAddress (&fDigits); | |
dc8af42e | 291 | } |
88cb7938 | 292 | |
293 | if (fLoader->TreeR() && fReconParticles) | |
dc8af42e | 294 | { |
88cb7938 | 295 | if (fReconParticles == 0x0) |
296 | fReconParticles=new TClonesArray("AliFMDReconstParticles",1000); | |
297 | branch = fLoader->TreeR()->GetBranch("FMD"); | |
dc8af42e | 298 | if (branch) branch->SetAddress(&fReconParticles) ; |
37c55dc0 | 299 | } |
b9a2d5e4 | 300 | } |
301 | ||
b9a2d5e4 | 302 | |
303 | ||
dc8af42e | 304 | void |
305 | AliFMD::Eta2Radius (Float_t eta, Float_t zDisk, Float_t * radius) | |
fe4da5cc | 306 | { |
dc8af42e | 307 | Float_t expEta = TMath::Exp (-eta); |
308 | Float_t theta = TMath::ATan (expEta); | |
309 | theta = 2. * theta; | |
310 | Float_t rad = zDisk * (TMath::Tan (theta)); | |
311 | *radius = rad; | |
312 | ||
313 | if (fDebug) | |
314 | printf ("%s: eta %f radius %f\n", ClassName (), eta, rad); | |
fe4da5cc | 315 | } |
d28dcc0d | 316 | |
88cb7938 | 317 | //--------------------------------------------------------------------- |
318 | ||
dc8af42e | 319 | |
320 | void AliFMD::Digits2Reco() | |
321 | { | |
88cb7938 | 322 | AliFMDReconstruction * reconstruction = new AliFMDReconstruction(fLoader->GetRunLoader()); |
323 | cout<<" AliFMD::Digits2Reco >> "<<reconstruction<<endl; | |
46501dfb | 324 | reconstruction->Exec(); |
dc8af42e | 325 | delete reconstruction; |
326 | } | |
4110645f | 327 | //----------------------------------------------------------------------- |
328 | ||
329 | void AliFMD::MakeBranchInTreeD(TTree *treeD, const char *file) | |
330 | { | |
331 | // | |
88cb7938 | 332 | // Create TreeD branches for the FMD |
4110645f | 333 | // |
4110645f | 334 | const Int_t kBufferSize = 4000; |
335 | char branchname[20]; | |
4110645f | 336 | sprintf(branchname,"%s",GetName()); |
88cb7938 | 337 | if(treeD) |
338 | { | |
339 | MakeBranchInTree(treeD, branchname,&fDigits, kBufferSize, file); | |
340 | } | |
4110645f | 341 | } |
37c55dc0 | 342 |