Fixed AreNeighbours()
[u/mrichter/AliRoot.git] / FMD / AliFMD.cxx
CommitLineData
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/* $Id$ */
c2fc1258 16/** @file AliFMD.cxx
17 @author Christian Holm Christensen <cholm@nbi.dk>
18 @date Sun Mar 26 17:59:18 2006
19 @brief Implementation of AliFMD base class
20*/
e802be3e 21//____________________________________________________________________
4347b38f 22//
37c4363a 23// Forward Multiplicity Detector based on Silicon wafers. This class
9f662337 24// is the driver for especially simulation.
25//
26// The Forward Multiplicity Detector consists of 3 sub-detectors FMD1,
27// FMD2, and FMD3, each of which has 1 or 2 rings of silicon sensors.
37c4363a 28//
29// This is the base class for all FMD manager classes.
30//
4347b38f 31// The actual code is done by various separate classes. Below is
32// diagram showing the relationship between the various FMD classes
1a1fdef7 33// that handles the simulation
4347b38f 34//
35//
36// +----------+ +----------+
1a1fdef7 37// | AliFMDv1 | | AliFMDv0 |
4347b38f 38// +----------+ +----------+
1a1fdef7 39// | | +-----------------+
40// +----+--------------+ +--| AliFMDDigitizer |
41// | | +-----------------+
42// | +---------------------+ |
4ac75127 43// | +--| AliFMDBaseDigitizer |<--+
1a1fdef7 44// V 1 | +---------------------+ |
45// +--------+<>--+ | +------------------+
46// | AliFMD | +--| AliFMDSDigitizer |
47// +--------+<>--+ +------------------+
9f662337 48// 1 | +---------------------+
49// +--| AliFMDReconstructor |
50// +---------------------+
4347b38f 51//
52// * AliFMD
53// This defines the interface for the various parts of AliROOT that
1a1fdef7 54// uses the FMD, like AliFMDSimulator, AliFMDDigitizer,
55// AliFMDReconstructor, and so on.
56//
57// * AliFMDv0
58// This is a concrete implementation of the AliFMD interface.
59// It is the responsibility of this class to create the FMD
60// geometry.
4347b38f 61//
62// * AliFMDv1
63// This is a concrete implementation of the AliFMD interface.
64// It is the responsibility of this class to create the FMD
65// geometry, process hits in the FMD, and serve hits and digits to
66// the various clients.
67//
1a1fdef7 68// * AliFMDSimulator
69// This is the base class for the FMD simulation tasks. The
70// simulator tasks are responsible to implment the geoemtry, and
71// process hits.
4347b38f 72//
9f662337 73// * AliFMDReconstructor
74// This is a concrete implementation of the AliReconstructor that
75// reconstructs pseudo-inclusive-multiplicities from digits (raw or
76// from simulation)
37c4363a 77//
9f662337 78// Calibration and geometry parameters are managed by separate
79// singleton managers. These are AliFMDGeometry and
80// AliFMDParameters. Please refer to these classes for more
81// information on these.
37c4363a 82//
fe4da5cc 83
56b1929b 84// These files are not in the same directory, so there's no reason to
85// ask the preprocessor to search in the current directory for these
86// files by including them with `#include "..."'
1d9082a3 87#include <cmath> // __CMATH__
56b1929b 88#include <TClonesArray.h> // ROOT_TClonesArray
89#include <TGeometry.h> // ROOT_TGeomtry
90#include <TNode.h> // ROOT_TNode
1a1fdef7 91#include <TXTRU.h> // ROOT_TXTRU
92#include <TRotMatrix.h> // ROOT_TRotMatrix
56b1929b 93#include <TTUBE.h> // ROOT_TTUBE
94#include <TTree.h> // ROOT_TTree
56b1929b 95#include <TBrowser.h> // ROOT_TBrowser
02a27b50 96// #include <TVirtualMC.h> // ROOT_TVirtualMC
97#include <TVector2.h> // ROOT_TVector2
ee8a5fe6 98#include <TGeoManager.h> // ROOT_TGeoManager
56b1929b 99
100#include <AliRunDigitizer.h> // ALIRUNDIGITIZER_H
101#include <AliLoader.h> // ALILOADER_H
102#include <AliRun.h> // ALIRUN_H
103#include <AliMC.h> // ALIMC_H
02a27b50 104#include <AliMagF.h> // ALIMAGF_H
56b1929b 105#include <AliLog.h> // ALILOG_H
e802be3e 106#include "AliFMD.h" // ALIFMD_H
02a27b50 107#include "AliFMDDigit.h" // ALIFMDDIGIT_H
108#include "AliFMDSDigit.h" // ALIFMDSDIGIT_H
e802be3e 109#include "AliFMDHit.h" // ALIFMDHIT_H
1a1fdef7 110#include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
111#include "AliFMDDetector.h" // ALIFMDDETECTOR_H
112#include "AliFMDRing.h" // ALIFMDRING_H
e802be3e 113#include "AliFMDDigitizer.h" // ALIFMDDIGITIZER_H
02a27b50 114#include "AliFMDSDigitizer.h" // ALIFMDSDIGITIZER_H
115// #include "AliFMDGeometryBuilder.h"
e802be3e 116#include "AliFMDRawWriter.h" // ALIFMDRAWWRITER_H
02a27b50 117#include "AliFMDPoints.h" // ALIFMDPOINTS_H
88cb7938 118
4347b38f 119//____________________________________________________________________
925e6570 120ClassImp(AliFMD)
1a1fdef7 121#if 0
122 ; // This is to keep Emacs from indenting the next line
123#endif
7e54281f 124
125//____________________________________________________________________
4347b38f 126AliFMD::AliFMD()
90da4514 127 : AliDetector(),
128 fSDigits(0),
afddaa11 129 fNsdigits(0),
1a1fdef7 130 fDetailed(kTRUE),
b5ee4425 131 fUseOld(kFALSE),
132 fUseAssembly(kTRUE),
133 fBad(0)
fe4da5cc 134{
135 //
136 // Default constructor for class AliFMD
137 //
1a1fdef7 138 AliDebug(10, "\tDefault CTOR");
4ac75127 139 fHits = 0;
140 fDigits = 0;
141 fIshunt = 0;
54e415a8 142 fBad = new TClonesArray("AliFMDHit");
fe4da5cc 143}
dc8af42e 144
4347b38f 145//____________________________________________________________________
1a1fdef7 146AliFMD::AliFMD(const char *name, const char *title)
4347b38f 147 : AliDetector (name, title),
afddaa11 148 fSDigits(0),
149 fNsdigits(0),
1a1fdef7 150 fDetailed(kTRUE),
b5ee4425 151 fUseOld(kFALSE),
152 fUseAssembly(kFALSE),
54e415a8 153 fBad(0)
fe4da5cc 154{
155 //
156 // Standard constructor for Forward Multiplicity Detector
157 //
1a1fdef7 158 AliDebug(10, "\tStandard CTOR");
54e415a8 159 fBad = new TClonesArray("AliFMDHit");
54240c8d 160
fe4da5cc 161 // Initialise Hit array
4347b38f 162 HitsArray();
163 gAlice->GetMCApp()->AddHitList(fHits);
d1280e40 164
4347b38f 165 // (S)Digits for the detectors disk
166 DigitsArray();
167 SDigitsArray();
168
169 // CHC: What is this?
dc8af42e 170 fIshunt = 0;
e939a978 171 //PH SetMarkerColor(kRed);
172 //PH SetLineColor(kYellow);
fe4da5cc 173}
d28dcc0d 174
4347b38f 175//____________________________________________________________________
dc8af42e 176AliFMD::~AliFMD ()
d28dcc0d 177{
4347b38f 178 // Destructor for base class AliFMD
179 if (fHits) {
180 fHits->Delete();
181 delete fHits;
182 fHits = 0;
183 }
184 if (fDigits) {
185 fDigits->Delete();
186 delete fDigits;
187 fDigits = 0;
188 }
189 if (fSDigits) {
190 fSDigits->Delete();
191 delete fSDigits;
192 fSDigits = 0;
193 }
54e415a8 194 if (fBad) {
195 fBad->Delete();
196 delete fBad;
197 fBad = 0;
198 }
4347b38f 199}
200
56b1929b 201
4347b38f 202//====================================================================
203//
204// GEometry ANd Traking
205//
206//____________________________________________________________________
207void
208AliFMD::CreateGeometry()
209{
4347b38f 210 //
37c4363a 211 // Create the geometry of Forward Multiplicity Detector. The actual
9f662337 212 // construction of the geometry is delegated to the class
213 // AliFMDGeometryBuilder, invoked by the singleton manager
214 // AliFMDGeometry.
1a1fdef7 215 //
54e415a8 216 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
54e415a8 217 fmd->SetDetailed(fDetailed);
218 fmd->UseAssembly(fUseAssembly);
219 fmd->Build();
4347b38f 220}
221
222//____________________________________________________________________
223void AliFMD::CreateMaterials()
224{
54e415a8 225 // Define the materials and tracking mediums needed by the FMD
226 // simulation. These mediums are made by sending the messages
227 // AliMaterial, AliMixture, and AliMedium to the passed AliModule
228 // object module. The defined mediums are
4347b38f 229 //
54e415a8 230 // FMD Si$ Silicon (active medium in sensors)
231 // FMD C$ Carbon fibre (support cone for FMD3 and vacuum pipe)
232 // FMD Al$ Aluminium (honeycomb support plates)
233 // FMD PCB$ Printed Circuit Board (FEE board with VA1_3)
234 // FMD Chip$ Electronics chips (currently not used)
235 // FMD Air$ Air (Air in the FMD)
236 // FMD Plastic$ Plastic (Support legs for the hybrid cards)
237 //
9f662337 238 // The geometry builder should really be the one that creates the
239 // materials, but the architecture of AliROOT makes that design
240 // akward. What should happen, was that the AliFMDGeometryBuilder
241 // made the mediums, and that this class retrives pointers from the
242 // TGeoManager, and registers the mediums here. Alas, it's not
243 // really that easy.
244 //
54e415a8 245 AliDebug(10, "\tCreating materials");
246 // Get pointer to geometry singleton object.
247 AliFMDGeometry* geometry = AliFMDGeometry::Instance();
248 geometry->Init();
249#if 0
250 if (gGeoManager && gGeoManager->GetMedium("FMD Si$")) {
251 // We need to figure out the some stuff about the geometry
252 fmd->ExtractGeomInfo();
253 return;
254 }
255#endif
54e415a8 256 Int_t id;
257 Double_t a = 0;
258 Double_t z = 0;
259 Double_t density = 0;
260 Double_t radiationLength = 0;
261 Double_t absorbtionLength = 999;
262 Int_t fieldType = gAlice->Field()->Integ(); // Field type
263 Double_t maxField = gAlice->Field()->Max(); // Field max.
264 Double_t maxBending = 0; // Max Angle
265 Double_t maxStepSize = 0.001; // Max step size
266 Double_t maxEnergyLoss = 1; // Max Delta E
267 Double_t precision = 0.001; // Precision
268 Double_t minStepSize = 0.001; // Minimum step size
269
270 // Silicon
271 a = 28.0855;
272 z = 14.;
273 density = geometry->GetSiDensity();
274 radiationLength = 9.36;
275 maxBending = 1;
276 maxStepSize = .001;
277 precision = .001;
278 minStepSize = .001;
279 id = kSiId;
280 AliMaterial(id, "Si$", a, z, density, radiationLength, absorbtionLength);
281 AliMedium(kSiId, "Si$", id,1,fieldType,maxField,maxBending,
282 maxStepSize,maxEnergyLoss,precision,minStepSize);
283
284
285 // Carbon
286 a = 12.011;
287 z = 6.;
288 density = 2.265;
289 radiationLength = 18.8;
290 maxBending = 10;
291 maxStepSize = .01;
292 precision = .003;
293 minStepSize = .003;
294 id = kCarbonId;
295 AliMaterial(id, "Carbon$", a, z, density, radiationLength, absorbtionLength);
296 AliMedium(kCarbonId, "Carbon$", id,0,fieldType,maxField,maxBending,
297 maxStepSize,maxEnergyLoss,precision,minStepSize);
298
299 // Aluminum
300 a = 26.981539;
301 z = 13.;
302 density = 2.7;
303 radiationLength = 8.9;
304 id = kAlId;
305 AliMaterial(id, "Aluminum$",a,z, density, radiationLength, absorbtionLength);
306 AliMedium(kAlId, "Aluminum$", id, 0, fieldType, maxField, maxBending,
307 maxStepSize, maxEnergyLoss, precision, minStepSize);
308
309
310 // Copper
311 a = 63.546;
312 z = 29;
313 density = 8.96;
314 radiationLength = 1.43;
315 id = kCopperId;
316 AliMaterial(id, "Copper$",
317 a, z, density, radiationLength, absorbtionLength);
318 AliMedium(kCopperId, "Copper$", id, 0, fieldType, maxField, maxBending,
319 maxStepSize, maxEnergyLoss, precision, minStepSize);
320
321
322 // Silicon chip
323 {
324 Float_t as[] = { 12.0107, 14.0067, 15.9994,
325 1.00794, 28.0855, 107.8682 };
326 Float_t zs[] = { 6., 7., 8.,
327 1., 14., 47. };
328 Float_t ws[] = { 0.039730642, 0.001396798, 0.01169634,
329 0.004367771, 0.844665, 0.09814344903 };
330 density = 2.36436;
331 maxBending = 10;
332 maxStepSize = .01;
333 precision = .003;
334 minStepSize = .003;
335 id = kSiChipId;
336 AliMixture(id, "Si Chip$", as, zs, density, 6, ws);
337 AliMedium(kSiChipId, "Si Chip$", id, 0, fieldType, maxField, maxBending,
338 maxStepSize, maxEnergyLoss, precision, minStepSize);
339 }
340
341 // Kaption
342 {
343 Float_t as[] = { 1.00794, 12.0107, 14.010, 15.9994};
344 Float_t zs[] = { 1., 6., 7., 8.};
345 Float_t ws[] = { 0.026362, 0.69113, 0.07327, 0.209235};
346 density = 1.42;
347 maxBending = 1;
348 maxStepSize = .001;
349 precision = .001;
350 minStepSize = .001;
351 id = kKaptonId;
352 AliMixture(id, "Kaption$", as, zs, density, 4, ws);
353 AliMedium(kKaptonId, "Kaption$", id,0,fieldType,maxField,maxBending,
354 maxStepSize,maxEnergyLoss,precision,minStepSize);
355 }
356
357 // Air
358 {
359 Float_t as[] = { 12.0107, 14.0067, 15.9994, 39.948 };
360 Float_t zs[] = { 6., 7., 8., 18. };
361 Float_t ws[] = { 0.000124, 0.755267, 0.231781, 0.012827 };
362 density = .00120479;
363 maxBending = 1;
364 maxStepSize = .001;
365 precision = .001;
366 minStepSize = .001;
367 id = kAirId;
368 AliMixture(id, "Air$", as, zs, density, 4, ws);
369 AliMedium(kAirId, "Air$", id,0,fieldType,maxField,maxBending,
370 maxStepSize,maxEnergyLoss,precision,minStepSize);
371 }
372
373 // PCB
374 {
375 Float_t zs[] = { 14., 20., 13., 12.,
376 5., 22., 11., 19.,
377 26., 9., 8., 6.,
378 7., 1.};
379 Float_t as[] = { 28.0855, 40.078, 26.981538, 24.305,
380 10.811, 47.867, 22.98977, 39.0983,
381 55.845, 18.9984, 15.9994, 12.0107,
382 14.0067, 1.00794};
383 Float_t ws[] = { 0.15144894, 0.08147477, 0.04128158, 0.00904554,
384 0.01397570, 0.00287685, 0.00445114, 0.00498089,
385 0.00209828, 0.00420000, 0.36043788, 0.27529426,
386 0.01415852, 0.03427566};
387 density = 1.8;
388 maxBending = 1;
389 maxStepSize = .001;
390 precision = .001;
391 minStepSize = .001;
392 id = kPcbId;
393 AliMixture(id, "PCB$", as, zs, density, 14, ws);
394 AliMedium(kPcbId, "PCB$", id,0,fieldType,maxField,maxBending,
395 maxStepSize,maxEnergyLoss,precision,minStepSize);
396 }
397
398 // Plastic
399 {
400 Float_t as[] = { 1.01, 12.01 };
401 Float_t zs[] = { 1., 6. };
402 Float_t ws[] = { 1., 1. };
403 density = 1.03;
404 maxBending = 10;
405 maxStepSize = .01;
406 precision = .003;
407 minStepSize = .003;
408 id = kPlasticId;
409 AliMixture(id, "Plastic$", as, zs, density, -2, ws);
410 AliMedium(kPlasticId, "Plastic$", id,0,fieldType,maxField,maxBending,
411 maxStepSize,maxEnergyLoss,precision,minStepSize);
412 }
d28dcc0d 413}
dc8af42e 414
4347b38f 415//____________________________________________________________________
416void
417AliFMD::Init()
bf000c32 418{
9f662337 419 // Initialize the detector
420 //
bf000c32 421 AliDebug(1, "Initialising FMD detector object");
d760ea03 422 // AliFMDGeometry* fmd = AliFMDGeometry::Instance();
423 // fmd->InitTransformations();
bf000c32 424}
dc8af42e 425
54240c8d 426//____________________________________________________________________
427void
428AliFMD::FinishEvent()
429{
9f662337 430 // Called at the end of the an event in simulations. If the debug
431 // level is high enough, then the `bad' hits are printed.
432 //
bf000c32 433 if (AliLog::GetDebugLevel("FMD", "AliFMD") < 10) return;
54e415a8 434 if (fBad && fBad->GetEntries() > 0) {
435 AliWarning((Form("EndEvent", "got %d 'bad' hits", fBad->GetEntries())));
436 TIter next(fBad);
437 AliFMDHit* hit;
bf000c32 438 while ((hit = static_cast<AliFMDHit*>(next()))) hit->Print("D");
54e415a8 439 fBad->Clear();
440 }
54240c8d 441}
442
443
4347b38f 444//====================================================================
445//
446// Graphics and event display
447//
448//____________________________________________________________________
449void
450AliFMD::BuildGeometry()
b9a2d5e4 451{
4347b38f 452 //
9f662337 453 // Build simple ROOT TNode geometry for event display. With the new
454 // geometry modeller, TGeoManager, this seems rather redundant.
824466d5 455 AliDebug(10, "\tCreating a simplified geometry");
b9a2d5e4 456
1a1fdef7 457 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
458
459 static TXTRU* innerShape = 0;
460 static TXTRU* outerShape = 0;
461 static TObjArray* innerRot = 0;
462 static TObjArray* outerRot = 0;
463
464 if (!innerShape || !outerShape) {
465 // Make the shapes for the modules
466 for (Int_t i = 0; i < 2; i++) {
467 AliFMDRing* r = 0;
468 switch (i) {
469 case 0: r = fmd->GetRing('I'); break;
470 case 1: r = fmd->GetRing('O'); break;
471 }
472 if (!r) {
473 AliError(Form("no ring found for i=%d", i));
474 return;
475 }
476 Double_t siThick = r->GetSiThickness();
02a27b50 477 const Int_t knv = r->GetNVerticies();
1a1fdef7 478 Double_t theta = r->GetTheta();
479 Int_t nmod = r->GetNModules();
480
02a27b50 481 TXTRU* shape = new TXTRU(r->GetName(), r->GetTitle(), "void", knv, 2);
482 for (Int_t j = 0; j < knv; j++) {
483 TVector2* vv = r->GetVertex(knv - 1 - j);
1a1fdef7 484 shape->DefineVertex(j, vv->X(), vv->Y());
485 }
486 shape->DefineSection(0, -siThick / 2, 1, 0, 0);
487 shape->DefineSection(1, +siThick / 2, 1, 0, 0);
e939a978 488 shape->SetLineColor(kYellow); //PH kYellow is the default line color in FMD
1a1fdef7 489
490 TObjArray* rots = new TObjArray(nmod);
491 for (Int_t j = 0; j < nmod; j++) {
492 Double_t th = (j + .5) * theta * 2;
493 TString name(Form("FMD_ring_%c_rot_%02d", r->GetId(), j));
494 TString title(Form("FMD Ring %c Rotation # %d", r->GetId(), j));
495 TRotMatrix* rot = new TRotMatrix(name.Data(), title.Data(),
496 90, th, 90, fmod(90+th,360), 0, 0);
497 rots->AddAt(rot, j);
498 }
499
500 switch (r->GetId()) {
501 case 'i':
502 case 'I': innerShape = shape; innerRot = rots; break;
503 case 'o':
504 case 'O': outerShape = shape; outerRot = rots; break;
505 }
506 }
507 }
508
4347b38f 509 TNode* top = gAlice->GetGeometry()->GetNode("alice");
510
1a1fdef7 511 for (Int_t i = 1; i <= 3; i++) {
512 AliFMDDetector* det = fmd->GetDetector(i);
513 if (!det) {
514 Warning("BuildGeometry", "FMD%d seems to be disabled", i);
515 continue;
516 }
517 Double_t w = 0;
518 Double_t rh = det->GetRing('I')->GetHighR();
519 Char_t id = 'I';
520 if (det->GetRing('O')) {
521 w = TMath::Abs(det->GetRingZ('O') - det->GetRingZ('I'));
522 id = (TMath::Abs(det->GetRingZ('O'))
523 > TMath::Abs(det->GetRingZ('I')) ? 'O' : 'I');
524 rh = det->GetRing('O')->GetHighR();
525 }
526 w += (det->GetRing(id)->GetModuleSpacing() +
527 det->GetRing(id)->GetSiThickness());
528 TShape* shape = new TTUBE(det->GetName(), det->GetTitle(), "void",
529 det->GetRing('I')->GetLowR(), rh, w / 2);
530 Double_t z = (det->GetRingZ('I') - w / 2);
531 if (z > 0) z += det->GetRing(id)->GetModuleSpacing();
532 top->cd();
533 TNode* node = new TNode(det->GetName(), det->GetTitle(), shape,
534 0, 0, z, 0);
535 fNodes->Add(node);
536
537 for (Int_t j = 0; j < 2; j++) {
538 AliFMDRing* r = 0;
539 TShape* rshape = 0;
540 TObjArray* rots = 0;
541 switch (j) {
542 case 0:
543 r = det->GetRing('I'); rshape = innerShape; rots = innerRot; break;
544 case 1:
545 r = det->GetRing('O'); rshape = outerShape; rots = outerRot; break;
546 }
547 if (!r) continue;
548
549 Double_t siThick = r->GetSiThickness();
550 Int_t nmod = r->GetNModules();
551 Double_t modspace = r->GetModuleSpacing();
552 Double_t rz = - (z - det->GetRingZ(r->GetId()));
553
554 for (Int_t k = 0; k < nmod; k++) {
555 node->cd();
556 Double_t offz = (k % 2 == 1 ? modspace : 0);
557 TRotMatrix* rot = static_cast<TRotMatrix*>(rots->At(k));
558 TString name(Form("%s%c_module_%02d", det->GetName(), r->GetId(),k));
559 TString title(Form("%s%c Module %d", det->GetName(), r->GetId(),k));
560 TNode* mnod = new TNode(name.Data(), title.Data(), rshape,
561 0, 0, rz - siThick / 2
562 + TMath::Sign(offz,z), rot);
e939a978 563 mnod->SetLineColor(kYellow); //PH kYellow is the default line color in FMD
1a1fdef7 564 fNodes->Add(mnod);
565 } // for (Int_t k = 0 ; ...)
566 } // for (Int_t j = 0 ; ...)
567 } // for (Int_t i = 1 ; ...)
b9a2d5e4 568}
88cb7938 569
4347b38f 570//____________________________________________________________________
571void
bf000c32 572AliFMD::LoadPoints(Int_t /* track */)
573{
9f662337 574 // Store x, y, z of all hits in memory for display.
575 //
576 // Normally, the hits are drawn using TPolyMarker3D - however, that
577 // is not very useful for the FMD. Therefor, this member function
578 // is overloaded to make TMarker3D, via the class AliFMDPoints.
579 // AliFMDPoints is a local class.
bf000c32 580 //
581 if (!fHits) {
582 AliError(Form("fHits == 0. Name is %s",GetName()));
583 return;
584 }
585 Int_t nHits = fHits->GetEntriesFast();
586 if (nHits == 0) {
587 return;
588 }
589 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
590 if (fPoints == 0) fPoints = new TObjArray(2 * tracks);
591
592 // Get geometry
593 AliFMDGeometry* geom = AliFMDGeometry::Instance();
594 geom->Init();
595 geom->InitTransformations();
596
597 // Now make markers for each hit
598 // AliInfo(Form("Drawing %d hits (have %d points) for track %d",
599 // nHits, fPoints->GetEntriesFast(), track));
600 for (Int_t ihit = 0; ihit < nHits; ihit++) {
601 AliFMDHit* hit = static_cast<AliFMDHit*>(fHits->At(ihit));
602 if (!hit) continue;
603 Double_t edep = hit->Edep();
604 Double_t m = hit->M();
605 Double_t poverm = (m == 0 ? 0 : hit->P());
606 Double_t absQ = TMath::Abs(hit->Q());
607 Bool_t bad = kFALSE;
608 // This `if' is to debug abnormal energy depositions. We trigger on
609 // p/m approx larger than or equal to a MIP, and a large edep - more
610 // than 1 keV - a MIP is 100 eV.
611 if (edep > absQ * absQ && poverm > 1) bad = kTRUE;
612
e939a978 613 AliFMDPoints* p1 = new AliFMDPoints(hit, kRed); //PH kRed is the default marker color in FMD
bf000c32 614 // AliPoints* p1 = new AliPoints();
615 // p1->SetMarkerColor(GetMarkerColor());
616 // p1->SetMarkerSize(GetMarkerSize());
617 // p1->SetPoint(0, hit->X(), hit->Y(), hit->Z());
618 p1->SetDetector(this);
619 p1->SetParticle(hit->GetTrack());
620 fPoints->AddAt(p1, hit->GetTrack());
621 if (bad) {
622 p1->SetMarkerColor(4);
623 // p1->SetMarkerSize(2 * GetMarkerSize());
624 }
625
626 Double_t x, y, z;
627 geom->Detector2XYZ(hit->Detector(), hit->Ring(), hit->Sector(),
628 hit->Strip(), x, y, z);
629 AliFMDPoints* p = new AliFMDPoints(hit, 3);
630 // AliPoints* p = new AliPoints();
631 // p->SetMarkerColor(3);
632 // p->SetMarkerSize(GetMarkerSize());
633 // p->SetPoint(0, x, y, z);
634 p->SetDetector(this);
635 p->SetParticle(hit->GetTrack());
636 p->SetXYZ(x, y, z);
637 p->SetMarkerColor(3);
638 fPoints->AddAt(p, tracks+hit->GetTrack());
639 if (bad) {
640 p->SetMarkerColor(5);
641 // p->SetMarkerSize(2 * GetMarkerSize());
642 }
643 // AliInfo(Form("Adding point at %d", tracks+hit->GetTrack()));
644 }
645}
646
647//____________________________________________________________________
648void
4347b38f 649AliFMD::DrawDetector()
fe4da5cc 650{
9f662337 651 // Draw a shaded view of the Forward multiplicity detector. This
652 // isn't really useful anymore.
824466d5 653 AliDebug(10, "\tDraw detector");
fe4da5cc 654}
dc8af42e 655
4347b38f 656//____________________________________________________________________
17323043 657Int_t
02a27b50 658AliFMD::DistancetoPrimitive(Int_t, Int_t)
fe4da5cc 659{
fe4da5cc 660 // Calculate the distance from the mouse to the FMD on the screen
9f662337 661 // Dummy routine.
fe4da5cc 662 //
663 return 9999;
664}
dc8af42e 665
4347b38f 666//====================================================================
667//
668// Hit and Digit managment
669//
670//____________________________________________________________________
671void
672AliFMD::MakeBranch(Option_t * option)
673{
674 // Create Tree branches for the FMD.
37c4363a 675 //
676 // Options:
677 //
678 // H Make a branch of TClonesArray of AliFMDHit's
679 // D Make a branch of TClonesArray of AliFMDDigit's
680 // S Make a branch of TClonesArray of AliFMDSDigit's
681 //
4347b38f 682 const Int_t kBufferSize = 16000;
683 TString branchname(GetName());
684 TString opt(option);
685
686 if (opt.Contains("H", TString::kIgnoreCase)) {
687 HitsArray();
688 AliDetector::MakeBranch(option);
689 }
690 if (opt.Contains("D", TString::kIgnoreCase)) {
691 DigitsArray();
692 MakeBranchInTree(fLoader->TreeD(), branchname.Data(),
693 &fDigits, kBufferSize, 0);
694 }
695 if (opt.Contains("S", TString::kIgnoreCase)) {
696 SDigitsArray();
697 MakeBranchInTree(fLoader->TreeS(), branchname.Data(),
698 &fSDigits, kBufferSize, 0);
699 }
700}
701
702//____________________________________________________________________
703void
704AliFMD::SetTreeAddress()
705{
afddaa11 706 // Set branch address for the Hits, Digits, and SDigits Tree.
4347b38f 707 if (fLoader->TreeH()) HitsArray();
708 AliDetector::SetTreeAddress();
709
710 TTree *treeD = fLoader->TreeD();
711 if (treeD) {
712 DigitsArray();
713 TBranch* branch = treeD->GetBranch ("FMD");
714 if (branch) branch->SetAddress(&fDigits);
715 }
716
717 TTree *treeS = fLoader->TreeS();
718 if (treeS) {
719 SDigitsArray();
720 TBranch* branch = treeS->GetBranch ("FMD");
721 if (branch) branch->SetAddress(&fSDigits);
722 }
723}
724
4347b38f 725//____________________________________________________________________
726void
727AliFMD::SetHitsAddressBranch(TBranch *b)
b9a2d5e4 728{
37c4363a 729 // Set the TClonesArray to read hits into.
4347b38f 730 b->SetAddress(&fHits);
b9a2d5e4 731}
732
4347b38f 733//____________________________________________________________________
734void
735AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
736{
737 // Add a hit to the hits tree
738 //
739 // The information of the two arrays are decoded as
740 //
741 // Parameters
742 // track Track #
743 // ivol[0] [UShort_t ] Detector #
744 // ivol[1] [Char_t ] Ring ID
745 // ivol[2] [UShort_t ] Sector #
746 // ivol[3] [UShort_t ] Strip #
747 // hits[0] [Float_t ] Track's X-coordinate at hit
748 // hits[1] [Float_t ] Track's Y-coordinate at hit
749 // hits[3] [Float_t ] Track's Z-coordinate at hit
750 // hits[4] [Float_t ] X-component of track's momentum
751 // hits[5] [Float_t ] Y-component of track's momentum
752 // hits[6] [Float_t ] Z-component of track's momentum
753 // hits[7] [Float_t ] Energy deposited by track
754 // hits[8] [Int_t ] Track's particle Id #
37c4363a 755 // hits[9] [Float_t ] Time when the track hit
756 //
757 //
69b696b9 758 AddHitByFields(track,
759 UShort_t(vol[0]), // Detector #
760 Char_t(vol[1]), // Ring ID
761 UShort_t(vol[2]), // Sector #
762 UShort_t(vol[3]), // Strip #
763 hits[0], // X
764 hits[1], // Y
765 hits[2], // Z
766 hits[3], // Px
767 hits[4], // Py
768 hits[5], // Pz
769 hits[6], // Energy loss
770 Int_t(hits[7]), // PDG
771 hits[8]); // Time
4347b38f 772}
773
774//____________________________________________________________________
54240c8d 775AliFMDHit*
69b696b9 776AliFMD::AddHitByFields(Int_t track,
777 UShort_t detector,
778 Char_t ring,
779 UShort_t sector,
780 UShort_t strip,
781 Float_t x,
782 Float_t y,
783 Float_t z,
784 Float_t px,
785 Float_t py,
786 Float_t pz,
787 Float_t edep,
788 Int_t pdg,
088f8e79 789 Float_t t,
790 Float_t l,
791 Bool_t stop)
b9a2d5e4 792{
4347b38f 793 // Add a hit to the list
dc8af42e 794 //
4347b38f 795 // Parameters:
796 //
797 // track Track #
798 // detector Detector # (1, 2, or 3)
799 // ring Ring ID ('I' or 'O')
800 // sector Sector # (For inner/outer rings: 0-19/0-39)
801 // strip Strip # (For inner/outer rings: 0-511/0-255)
802 // x Track's X-coordinate at hit
803 // y Track's Y-coordinate at hit
804 // z Track's Z-coordinate at hit
805 // px X-component of track's momentum
806 // py Y-component of track's momentum
807 // pz Z-component of track's momentum
808 // edep Energy deposited by track
809 // pdg Track's particle Id #
810 // t Time when the track hit
088f8e79 811 // l Track length through the material.
812 // stop Whether track was stopped or disappeared
4347b38f 813 //
814 TClonesArray& a = *(HitsArray());
815 // Search through the list of already registered hits, and see if we
816 // find a hit with the same parameters. If we do, then don't create
817 // a new hit, but rather update the energy deposited in the hit.
818 // This is done, so that a FLUKA based simulation will get the
819 // number of hits right, not just the enerrgy deposition.
ac4c3fbb 820 AliFMDHit* hit = 0;
4347b38f 821 for (Int_t i = 0; i < fNhits; i++) {
822 if (!a.At(i)) continue;
ac4c3fbb 823 hit = static_cast<AliFMDHit*>(a.At(i));
4347b38f 824 if (hit->Detector() == detector
825 && hit->Ring() == ring
826 && hit->Sector() == sector
827 && hit->Strip() == strip
828 && hit->Track() == track) {
8f6ee336 829 AliDebug(1, Form("already had a hit in FMD%d%c[%2d,%3d] for track # %d,"
830 " adding energy (%f) to that hit (%f) -> %f",
831 detector, ring, sector, strip, track, edep, hit->Edep(),
832 hit->Edep() + edep));
4347b38f 833 hit->SetEdep(hit->Edep() + edep);
54240c8d 834 return hit;
4347b38f 835 }
836 }
837 // If hit wasn't already registered, do so know.
ac4c3fbb 838 hit = new (a[fNhits]) AliFMDHit(fIshunt, track, detector, ring, sector,
088f8e79 839 strip, x, y, z, px, py, pz, edep, pdg, t,
840 l, stop);
4347b38f 841 fNhits++;
54240c8d 842 return hit;
b9a2d5e4 843}
fe4da5cc 844
4347b38f 845//____________________________________________________________________
846void
69b696b9 847AliFMD::AddDigit(Int_t* digits, Int_t*)
fe4da5cc 848{
4347b38f 849 // Add a digit to the Digit tree
850 //
851 // Paramters
fe4da5cc 852 //
4347b38f 853 // digits[0] [UShort_t] Detector #
854 // digits[1] [Char_t] Ring ID
855 // digits[2] [UShort_t] Sector #
856 // digits[3] [UShort_t] Strip #
857 // digits[4] [UShort_t] ADC Count
858 // digits[5] [Short_t] ADC Count, -1 if not used
859 // digits[6] [Short_t] ADC Count, -1 if not used
860 //
69b696b9 861 AddDigitByFields(UShort_t(digits[0]), // Detector #
862 Char_t(digits[1]), // Ring ID
863 UShort_t(digits[2]), // Sector #
864 UShort_t(digits[3]), // Strip #
865 UShort_t(digits[4]), // ADC Count1
866 Short_t(digits[5]), // ADC Count2
867 Short_t(digits[6])); // ADC Count3
4347b38f 868}
869
870//____________________________________________________________________
871void
69b696b9 872AliFMD::AddDigitByFields(UShort_t detector,
873 Char_t ring,
874 UShort_t sector,
875 UShort_t strip,
876 UShort_t count1,
877 Short_t count2,
878 Short_t count3)
4347b38f 879{
880 // add a real digit - as coming from data
881 //
882 // Parameters
fe4da5cc 883 //
4347b38f 884 // detector Detector # (1, 2, or 3)
885 // ring Ring ID ('I' or 'O')
886 // sector Sector # (For inner/outer rings: 0-19/0-39)
887 // strip Strip # (For inner/outer rings: 0-511/0-255)
888 // count1 ADC count (a 10-bit word)
889 // count2 ADC count (a 10-bit word), or -1 if not used
890 // count3 ADC count (a 10-bit word), or -1 if not used
891 TClonesArray& a = *(DigitsArray());
892
893 new (a[fNdigits++])
894 AliFMDDigit(detector, ring, sector, strip, count1, count2, count3);
895}
896
897//____________________________________________________________________
898void
899AliFMD::AddSDigit(Int_t* digits)
900{
901 // Add a digit to the SDigit tree
902 //
903 // Paramters
b9a2d5e4 904 //
4347b38f 905 // digits[0] [UShort_t] Detector #
906 // digits[1] [Char_t] Ring ID
907 // digits[2] [UShort_t] Sector #
908 // digits[3] [UShort_t] Strip #
909 // digits[4] [Float_t] Total energy deposited
910 // digits[5] [UShort_t] ADC Count
911 // digits[6] [Short_t] ADC Count, -1 if not used
912 // digits[7] [Short_t] ADC Count, -1 if not used
913 //
69b696b9 914 AddSDigitByFields(UShort_t(digits[0]), // Detector #
915 Char_t(digits[1]), // Ring ID
916 UShort_t(digits[2]), // Sector #
917 UShort_t(digits[3]), // Strip #
918 Float_t(digits[4]), // Edep
919 UShort_t(digits[5]), // ADC Count1
920 Short_t(digits[6]), // ADC Count2
921 Short_t(digits[7])); // ADC Count3
4347b38f 922}
923
924//____________________________________________________________________
925void
69b696b9 926AliFMD::AddSDigitByFields(UShort_t detector,
927 Char_t ring,
928 UShort_t sector,
929 UShort_t strip,
930 Float_t edep,
931 UShort_t count1,
932 Short_t count2,
933 Short_t count3)
4347b38f 934{
935 // add a summable digit
936 //
937 // Parameters
b9a2d5e4 938 //
4347b38f 939 // detector Detector # (1, 2, or 3)
940 // ring Ring ID ('I' or 'O')
941 // sector Sector # (For inner/outer rings: 0-19/0-39)
942 // strip Strip # (For inner/outer rings: 0-511/0-255)
943 // edep Total energy deposited
944 // count1 ADC count (a 10-bit word)
945 // count2 ADC count (a 10-bit word), or -1 if not used
946 // count3 ADC count (a 10-bit word), or -1 if not used
37c4363a 947 //
4347b38f 948 TClonesArray& a = *(SDigitsArray());
949
950 new (a[fNsdigits++])
951 AliFMDSDigit(detector, ring, sector, strip, edep, count1, count2, count3);
fe4da5cc 952}
4347b38f 953
954//____________________________________________________________________
955void
956AliFMD::ResetSDigits()
d28dcc0d 957{
9f662337 958 // Reset number of digits and the digits array for this detector.
4347b38f 959 //
960 fNsdigits = 0;
961 if (fSDigits) fSDigits->Clear();
962}
963
964
965//____________________________________________________________________
966TClonesArray*
967AliFMD::HitsArray()
968{
969 // Initialize hit array if not already, and return pointer to it.
970 if (!fHits) {
971 fHits = new TClonesArray("AliFMDHit", 1000);
972 fNhits = 0;
973 }
974 return fHits;
975}
976
977//____________________________________________________________________
978TClonesArray*
979AliFMD::DigitsArray()
980{
981 // Initialize digit array if not already, and return pointer to it.
982 if (!fDigits) {
983 fDigits = new TClonesArray("AliFMDDigit", 1000);
984 fNdigits = 0;
985 }
986 return fDigits;
987}
988
989//____________________________________________________________________
990TClonesArray*
991AliFMD::SDigitsArray()
992{
993 // Initialize digit array if not already, and return pointer to it.
994 if (!fSDigits) {
995 fSDigits = new TClonesArray("AliFMDSDigit", 1000);
996 fNsdigits = 0;
997 }
998 return fSDigits;
999}
1000
1001//====================================================================
1002//
1003// Digitization
1004//
1005//____________________________________________________________________
1006void
1007AliFMD::Hits2Digits()
1008{
37c4363a 1009 // Create AliFMDDigit's from AliFMDHit's. This is done by making a
1010 // AliFMDDigitizer, and executing that code.
1011 //
a3537838 1012 Warning("Hits2Digits", "Try not to use this method.\n"
1013 "Instead, use AliSimulator");
4347b38f 1014 AliRunDigitizer* manager = new AliRunDigitizer(1, 1);
1015 manager->SetInputStream(0, "galice.root");
1016 manager->SetOutputFile("H2Dfile");
dc8af42e 1017
4347b38f 1018 /* AliDigitizer* dig =*/ CreateDigitizer(manager);
1019 manager->Exec("");
99d864b7 1020 delete manager;
4347b38f 1021}
1022
1023//____________________________________________________________________
1024void
1025AliFMD::Hits2SDigits()
1026{
37c4363a 1027 // Create AliFMDSDigit's from AliFMDHit's. This is done by creating
1028 // an AliFMDSDigitizer object, and executing it.
1029 //
56b1929b 1030 AliFMDSDigitizer* digitizer = new AliFMDSDigitizer("galice.root");
56b1929b 1031 digitizer->Exec("");
99d864b7 1032 delete digitizer;
4347b38f 1033}
1034
dc8af42e 1035
4347b38f 1036//____________________________________________________________________
1037AliDigitizer*
1038AliFMD::CreateDigitizer(AliRunDigitizer* manager) const
1039{
1040 // Create a digitizer object
56b1929b 1041 AliFMDDigitizer* digitizer = new AliFMDDigitizer(manager);
56b1929b 1042 return digitizer;
4347b38f 1043}
b9a2d5e4 1044
4347b38f 1045//====================================================================
1046//
1047// Raw data simulation
1048//
1049//__________________________________________________________________
1050void
1051AliFMD::Digits2Raw()
1052{
37c4363a 1053 // Turn digits into raw data.
1054 //
e802be3e 1055 // This uses the class AliFMDRawWriter to do the job. Please refer
1056 // to that class for more information.
1057 AliFMDRawWriter writer(this);
1058 writer.Exec();
b9a2d5e4 1059}
1060
4347b38f 1061
1062//====================================================================
1063//
1064// Utility
1065//
1066//__________________________________________________________________
1067void
1068AliFMD::Browse(TBrowser* b)
1069{
37c4363a 1070 // Browse this object.
1071 //
824466d5 1072 AliDebug(30, "\tBrowsing the FMD");
4347b38f 1073 AliDetector::Browse(b);
1a1fdef7 1074 b->Add(AliFMDGeometry::Instance());
4347b38f 1075}
1076
ee8a5fe6 1077//____________________________________________________________________
1078void
1079AliFMD::AddAlignableVolumes() const
1080{
1081 //
1082 // Create entries for alignable volumes associating the symbolic volume
1083 // name with the corresponding volume path. Needs to be syncronized with
1084 // eventual changes in the geometry.
1085 //
1086 // This code was made by Raffaele Grosso <rgrosso@mail.cern.ch>. I
1087 // (cholm) will probably want to change it. For one, I think it
1088 // should be the job of the geometry manager to deal with this.
9de78b35 1089 AliFMDGeometry::Instance()->SetAlignableVolumes();
1090#if 0
ee8a5fe6 1091 for(size_t f = 1; f <= 3; f++){ // Detector 1,2,3
1092 for(size_t tb = 0; tb <2 ; tb++){ // Top/Bottom
1093 char stb = tb == 0 ? 'T' : 'B';
1094 unsigned min = tb == 0 ? 0 : 5;
1095
8b1c66f0 1096 TString halfVol(Form("/ALIC_1/F%dM%c_%d", f, stb, f));
ee8a5fe6 1097 TString halfSym(halfVol);
1098 if(!gGeoManager->SetAlignableEntry(halfSym.Data(),halfVol.Data()))
1099 AliFatal(Form("Alignable entry %s not created. "
1100 "Volume path %s not valid",
1101 halfSym.Data(),halfVol.Data()));
1102 for(size_t io = 0; io < 2; io++){ // inner, outer
1103 if (f==1 && io==1) continue; // Only one ring in FMD1
8b1c66f0 1104 if(tb == 1 && io==1) min=10;
1105 char sio = (io == 0 ? 'I' : 'O');
ee8a5fe6 1106 unsigned nio = (io == 0 ? 3 : 9);
1107 unsigned max = (io == 0 ? 5 : 10) + min;
1108
1109 for(size_t i = min; i < max; i++) { // Modules
1110 TString modVol(Form("%s/F%c%cV_7%d/F%cSE_%d", halfVol.Data(),
1111 sio, stb, nio, sio, i));
1112 TString modSym(modVol);
1113 if(!gGeoManager->SetAlignableEntry(modSym.Data(),modVol.Data()))
1114 AliFatal(Form("Alignable entry %s not created. "
1115 "Volume path %s not valid",
1116 modSym.Data(), modVol.Data()));
1117 }
1118 }
1119 }
1120 }
9de78b35 1121#endif
ee8a5fe6 1122}
4347b38f 1123//___________________________________________________________________
1124//
1125// EOF
1126//