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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 // | |
383238cf | 23 | // Detector consists of 5 Si volumes covered pseudorapidity interval // |
24 | // from 1.7 to 5.1. // | |
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" | |
5d12ce38 | 66 | #include "AliMC.h" |
b9a2d5e4 | 67 | |
dc8af42e | 68 | ClassImp (AliFMD) |
b9a2d5e4 | 69 | //_____________________________________________________________________________ |
dc8af42e | 70 | AliFMD::AliFMD ():AliDetector () |
fe4da5cc | 71 | { |
72 | // | |
73 | // Default constructor for class AliFMD | |
74 | // | |
dc8af42e | 75 | fIshunt = 0; |
76 | fHits = 0; | |
77 | fDigits = 0; | |
cccf369e | 78 | fReconParticles=0; |
fe4da5cc | 79 | } |
dc8af42e | 80 | |
fe4da5cc | 81 | //_____________________________________________________________________________ |
dc8af42e | 82 | AliFMD::AliFMD (const char *name, const char *title): |
83 | AliDetector (name, title) | |
fe4da5cc | 84 | { |
85 | // | |
86 | // Standard constructor for Forward Multiplicity Detector | |
87 | // | |
dc8af42e | 88 | |
fe4da5cc | 89 | // |
90 | // Initialise Hit array | |
dc8af42e | 91 | fHits = new TClonesArray ("AliFMDhit", 1000); |
b9a2d5e4 | 92 | // Digits for each Si disk |
dc8af42e | 93 | fDigits = new TClonesArray ("AliFMDdigit", 1000); |
37c55dc0 | 94 | fReconParticles=new TClonesArray("AliFMDReconstParticles",1000); |
5d12ce38 | 95 | gAlice->GetMCApp()->AddHitList (fHits); |
d1280e40 | 96 | |
dc8af42e | 97 | fIshunt = 0; |
4110645f | 98 | // fMerger = 0; |
dc8af42e | 99 | SetMarkerColor (kRed); |
fe4da5cc | 100 | } |
d28dcc0d | 101 | |
dc8af42e | 102 | //----------------------------------------------------------------------------- |
103 | AliFMD::~AliFMD () | |
d28dcc0d | 104 | { |
dc8af42e | 105 | if (fHits) |
106 | { | |
107 | fHits->Delete (); | |
b9a2d5e4 | 108 | delete fHits; |
cae27883 | 109 | fHits = 0; |
dc8af42e | 110 | } |
111 | if (fDigits) | |
112 | { | |
113 | fDigits->Delete (); | |
cae27883 | 114 | delete fDigits; |
115 | fDigits = 0; | |
dc8af42e | 116 | } |
88cb7938 | 117 | if (fReconParticles) |
dc8af42e | 118 | { |
119 | fReconParticles->Delete (); | |
120 | delete fReconParticles; | |
121 | fReconParticles = 0; | |
122 | } | |
123 | ||
d28dcc0d | 124 | } |
dc8af42e | 125 | |
fe4da5cc | 126 | //_____________________________________________________________________________ |
dc8af42e | 127 | void AliFMD::AddHit (Int_t track, Int_t * vol, Float_t * hits) |
fe4da5cc | 128 | { |
129 | // | |
d28dcc0d | 130 | // Add a hit to the list |
fe4da5cc | 131 | // |
dc8af42e | 132 | TClonesArray & lhits = *fHits; |
133 | new (lhits[fNhits++]) AliFMDhit (fIshunt, track, vol, hits); | |
fe4da5cc | 134 | } |
dc8af42e | 135 | |
fe4da5cc | 136 | //_____________________________________________________________________________ |
dc8af42e | 137 | void AliFMD::AddDigit (Int_t * digits) |
b9a2d5e4 | 138 | { |
139 | // add a real digit - as coming from data | |
140 | ||
88cb7938 | 141 | if (fDigits == 0x0) fDigits = new TClonesArray ("AliFMDdigit", 1000); |
dc8af42e | 142 | TClonesArray & ldigits = *fDigits; |
143 | new (ldigits[fNdigits++]) AliFMDdigit (digits); | |
37c55dc0 | 144 | } |
88cb7938 | 145 | |
b9a2d5e4 | 146 | //_____________________________________________________________________________ |
dc8af42e | 147 | void AliFMD::BuildGeometry () |
fe4da5cc | 148 | { |
149 | // | |
150 | // Build simple ROOT TNode geometry for event display | |
151 | // | |
d28dcc0d | 152 | TNode *node, *top; |
37c55dc0 | 153 | const int kColorFMD = 5; |
fe4da5cc | 154 | // |
dc8af42e | 155 | top = gAlice->GetGeometry ()->GetNode ("alice"); |
fe4da5cc | 156 | |
157 | // FMD define the different volumes | |
dc8af42e | 158 | new TRotMatrix ("rot901", "rot901", 90, 0, 90, 90, 180, 0); |
159 | ||
4110645f | 160 | new TTUBE ("S_FMD0", "FMD volume 0", "void", 4.2, 17.2, 1.5); |
dc8af42e | 161 | top->cd (); |
1663993c | 162 | node = new TNode ("FMD0", "FMD0", "S_FMD0", 0, 0, -62.8, ""); |
dc8af42e | 163 | node->SetLineColor (kColorFMD); |
164 | fNodes->Add (node); | |
165 | ||
4110645f | 166 | new TTUBE ("S_FMD1", "FMD volume 1", "void", 15.4, 28.4, 1.5); |
dc8af42e | 167 | top->cd (); |
1663993c | 168 | node = new TNode ("FMD1", "FMD1", "S_FMD1", 0, 0, -75.2, ""); |
dc8af42e | 169 | node->SetLineColor (kColorFMD); |
170 | fNodes->Add (node); | |
171 | ||
4110645f | 172 | new TTUBE ("S_FMD2", "FMD volume 2", "void", 4.2, 17.2, 1.5); |
dc8af42e | 173 | top->cd (); |
1663993c | 174 | node = new TNode ("FMD2", "FMD2", "S_FMD2", 0, 0, 83.2, ""); |
dc8af42e | 175 | node->SetLineColor (kColorFMD); |
176 | fNodes->Add (node); | |
177 | ||
4110645f | 178 | new TTUBE ("S_FMD3", "FMD volume 3", "void", 15.4, 28.4, 1.5); |
dc8af42e | 179 | top->cd (); |
1663993c | 180 | node = new TNode ("FMD3", "FMD3", "S_FMD3", 0, 0, 75.2, ""); |
dc8af42e | 181 | node->SetLineColor (kColorFMD); |
182 | fNodes->Add (node); | |
183 | ||
4110645f | 184 | new TTUBE ("S_FMD4", "FMD volume 4", "void", 4.2, 17.2, 1.5); |
dc8af42e | 185 | top->cd (); |
1663993c | 186 | node = new TNode ("FMD4", "FMD4", "S_FMD4", 0, 0, 340, ""); |
dc8af42e | 187 | node->SetLineColor (kColorFMD); |
188 | fNodes->Add (node); | |
fe4da5cc | 189 | } |
dc8af42e | 190 | |
fe4da5cc | 191 | //_____________________________________________________________________________ |
46501dfb | 192 | Int_t AliFMD::DistanceToPrimitive (Int_t /*px*/, Int_t /*py*/) |
fe4da5cc | 193 | { |
194 | // | |
195 | // Calculate the distance from the mouse to the FMD on the screen | |
196 | // Dummy routine | |
197 | // | |
198 | return 9999; | |
199 | } | |
dc8af42e | 200 | |
b9a2d5e4 | 201 | //___________________________________________ |
dc8af42e | 202 | void AliFMD::ResetHits () |
b9a2d5e4 | 203 | { |
204 | // Reset number of clusters and the cluster array for this detector | |
dc8af42e | 205 | AliDetector::ResetHits (); |
b9a2d5e4 | 206 | } |
207 | ||
208 | //____________________________________________ | |
dc8af42e | 209 | void AliFMD::ResetDigits () |
b9a2d5e4 | 210 | { |
dc8af42e | 211 | // |
212 | // Reset number of digits and the digits array for this detector | |
37c55dc0 | 213 | AliDetector::ResetDigits (); |
dc8af42e | 214 | // |
b9a2d5e4 | 215 | } |
fe4da5cc | 216 | |
d28dcc0d | 217 | //------------------------------------------------------------------------- |
dc8af42e | 218 | void AliFMD::Init () |
fe4da5cc | 219 | { |
220 | // | |
221 | // Initialis the FMD after it has been built | |
222 | Int_t i; | |
223 | // | |
dc8af42e | 224 | if (fDebug) |
225 | { | |
226 | printf ("\n%s: ", ClassName ()); | |
227 | for (i = 0; i < 35; i++) | |
228 | printf ("*"); | |
229 | printf (" FMD_INIT "); | |
230 | for (i = 0; i < 35; i++) | |
231 | printf ("*"); | |
232 | printf ("\n%s: ", ClassName ()); | |
233 | // | |
234 | // Here the FMD initialisation code (if any!) | |
235 | for (i = 0; i < 80; i++) | |
236 | printf ("*"); | |
237 | printf ("\n"); | |
238 | } | |
b9a2d5e4 | 239 | // |
240 | // | |
46501dfb | 241 | |
fe4da5cc | 242 | } |
d28dcc0d | 243 | //--------------------------------------------------------------------- |
88cb7938 | 244 | void AliFMD::MakeBranch (Option_t * option) |
d28dcc0d | 245 | { |
246 | // Create Tree branches for the FMD. | |
d28dcc0d | 247 | char branchname[10]; |
dc8af42e | 248 | const Int_t kBufferSize = 16000; |
249 | sprintf (branchname, "%s", GetName ()); | |
250 | ||
88cb7938 | 251 | const char *cH = strstr(option,"H"); |
dc8af42e | 252 | const char *cD = strstr(option,"D"); |
253 | const char *cR = strstr(option,"R"); | |
dc8af42e | 254 | |
88cb7938 | 255 | if (cH && (fHits == 0x0)) fHits = new TClonesArray ("AliFMDhit", 1000); |
b9a2d5e4 | 256 | |
88cb7938 | 257 | AliDetector::MakeBranch (option); |
258 | ||
259 | if (cD){ | |
260 | if (fDigits == 0x0) fDigits = new TClonesArray ("AliFMDdigit", 1000); | |
261 | MakeBranchInTree(fLoader->TreeD(), branchname,&fDigits, kBufferSize, 0); | |
dc8af42e | 262 | } |
88cb7938 | 263 | |
dc8af42e | 264 | if (cR){ |
88cb7938 | 265 | if (fReconParticles == 0x0) |
266 | fReconParticles=new TClonesArray("AliFMDReconstParticles",1000); | |
267 | MakeBranchInTree(fLoader->TreeR(), branchname,&fReconParticles, kBufferSize, 0); | |
d28dcc0d | 268 | } |
dc8af42e | 269 | |
d28dcc0d | 270 | } |
dc8af42e | 271 | |
b9a2d5e4 | 272 | //_____________________________________________________________________________ |
dc8af42e | 273 | void AliFMD::SetTreeAddress () |
b9a2d5e4 | 274 | { |
275 | // Set branch address for the Hits and Digits Tree. | |
276 | char branchname[30]; | |
88cb7938 | 277 | |
278 | if (fLoader->TreeH() && (fHits == 0x0)) | |
279 | fHits = new TClonesArray ("AliFMDhit", 1000); | |
280 | ||
dc8af42e | 281 | AliDetector::SetTreeAddress (); |
b9a2d5e4 | 282 | |
283 | TBranch *branch; | |
88cb7938 | 284 | TTree *treeD = fLoader->TreeD(); |
b9a2d5e4 | 285 | |
dc8af42e | 286 | if (treeD) |
287 | { | |
88cb7938 | 288 | if (fDigits == 0x0) fDigits = new TClonesArray ("AliFMDdigit", 1000); |
289 | branch = treeD->GetBranch (branchname); | |
290 | if (branch) | |
291 | branch->SetAddress (&fDigits); | |
dc8af42e | 292 | } |
88cb7938 | 293 | |
294 | if (fLoader->TreeR() && fReconParticles) | |
dc8af42e | 295 | { |
88cb7938 | 296 | if (fReconParticles == 0x0) |
297 | fReconParticles=new TClonesArray("AliFMDReconstParticles",1000); | |
298 | branch = fLoader->TreeR()->GetBranch("FMD"); | |
dc8af42e | 299 | if (branch) branch->SetAddress(&fReconParticles) ; |
37c55dc0 | 300 | } |
b9a2d5e4 | 301 | } |
302 | ||
b9a2d5e4 | 303 | |
304 | ||
dc8af42e | 305 | void |
306 | AliFMD::Eta2Radius (Float_t eta, Float_t zDisk, Float_t * radius) | |
fe4da5cc | 307 | { |
dc8af42e | 308 | Float_t expEta = TMath::Exp (-eta); |
309 | Float_t theta = TMath::ATan (expEta); | |
310 | theta = 2. * theta; | |
311 | Float_t rad = zDisk * (TMath::Tan (theta)); | |
312 | *radius = rad; | |
313 | ||
314 | if (fDebug) | |
315 | printf ("%s: eta %f radius %f\n", ClassName (), eta, rad); | |
fe4da5cc | 316 | } |
d28dcc0d | 317 | |
88cb7938 | 318 | //--------------------------------------------------------------------- |
319 | ||
dc8af42e | 320 | |
321 | void AliFMD::Digits2Reco() | |
322 | { | |
88cb7938 | 323 | AliFMDReconstruction * reconstruction = new AliFMDReconstruction(fLoader->GetRunLoader()); |
324 | cout<<" AliFMD::Digits2Reco >> "<<reconstruction<<endl; | |
46501dfb | 325 | reconstruction->Exec(); |
dc8af42e | 326 | delete reconstruction; |
327 | } | |
4110645f | 328 | //----------------------------------------------------------------------- |
329 | ||
330 | void AliFMD::MakeBranchInTreeD(TTree *treeD, const char *file) | |
331 | { | |
332 | // | |
88cb7938 | 333 | // Create TreeD branches for the FMD |
4110645f | 334 | // |
4110645f | 335 | const Int_t kBufferSize = 4000; |
336 | char branchname[20]; | |
4110645f | 337 | sprintf(branchname,"%s",GetName()); |
88cb7938 | 338 | if(treeD) |
339 | { | |
340 | MakeBranchInTree(treeD, branchname,&fDigits, kBufferSize, file); | |
341 | } | |
4110645f | 342 | } |
37c55dc0 | 343 |