Issue AliError instead of AliFatal in case of inconsistent number of tracks
[u/mrichter/AliRoot.git] / STEER / AliDetector.cxx
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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 **************************************************************************/
15
acd84897 16/* $Id$ */
4c039060 17
fe4da5cc 18///////////////////////////////////////////////////////////////////////////////
19// //
20// Base class for ALICE modules. Both sensitive modules (detectors) and //
21// non-sensitive ones are described by this base class. This class //
22// supports the hit and digit trees produced by the simulation and also //
23// the objects produced by the reconstruction. //
24// //
25// This class is also responsible for building the geometry of the //
26// detectors. //
27// //
28//Begin_Html
29/*
1439f98e 30<img src="picts/AliDetectorClass.gif">
fe4da5cc 31*/
32//End_Html
33// //
34///////////////////////////////////////////////////////////////////////////////
65fb704d 35
2ab0c725 36#include <TBrowser.h>
6644b9ca 37#include <TTree.h>
fe4da5cc 38
594d8990 39#include "AliLog.h"
9e1a0ddb 40#include "AliConfig.h"
94de3818 41#include "AliDetector.h"
94de3818 42#include "AliHit.h"
43#include "AliPoints.h"
88cb7938 44#include "AliLoader.h"
6644b9ca 45#include "AliRun.h"
5d12ce38 46#include "AliMC.h"
aab9c8d5 47
9e1a0ddb 48
fe4da5cc 49ClassImp(AliDetector)
50
6644b9ca 51//_______________________________________________________________________
52AliDetector::AliDetector():
75c4b017 53 AliModule(),
6644b9ca 54 fTimeGate(200.e-9),
55 fIshunt(0),
56 fNhits(0),
57 fNdigits(0),
58 fBufferSize(1600),
90e48c0c 59 fMaxIterHit(0),
60 fCurIterHit(0),
6644b9ca 61 fHits(0),
62 fDigits(0),
88cb7938 63 fPoints(0),
64 fLoader(0x0)
fe4da5cc 65{
66 //
67 // Default constructor for the AliDetector class
68 //
fe4da5cc 69}
70
e2afb3b6 71//_______________________________________________________________________
72AliDetector::AliDetector(const AliDetector &det):
73 AliModule(det),
74 fTimeGate(200.e-9),
75 fIshunt(0),
76 fNhits(0),
77 fNdigits(0),
78 fBufferSize(1600),
90e48c0c 79 fMaxIterHit(0),
80 fCurIterHit(0),
e2afb3b6 81 fHits(0),
82 fDigits(0),
88cb7938 83 fPoints(0),
84 fLoader(0x0)
e2afb3b6 85{
86 det.Copy(*this);
87}
88
fe4da5cc 89//_____________________________________________________________________________
6644b9ca 90AliDetector::AliDetector(const char* name,const char *title):
91 AliModule(name,title),
92 fTimeGate(200.e-9),
93 fIshunt(0),
94 fNhits(0),
95 fNdigits(0),
96 fBufferSize(1600),
90e48c0c 97 fMaxIterHit(0),
98 fCurIterHit(0),
6644b9ca 99 fHits(0),
100 fDigits(0),
88cb7938 101 fPoints(0),
102 fLoader(0x0)
fe4da5cc 103{
104 //
105 // Normal constructor invoked by all Detectors.
106 // Create the list for detector specific histograms
107 // Add this Detector to the global list of Detectors in Run.
108 //
109
fe4da5cc 110 fActive = kTRUE;
9e1a0ddb 111 AliConfig::Instance()->Add(this);
aab9c8d5 112
fe4da5cc 113}
114
6644b9ca 115//_______________________________________________________________________
fe4da5cc 116AliDetector::~AliDetector()
117{
118 //
119 // Destructor
120 //
6644b9ca 121
fe4da5cc 122 // Delete space point structure
e460afec 123 if (fPoints) {
124 fPoints->Delete();
125 delete fPoints;
126 fPoints = 0;
127 }
128 // Delete digits structure
129 if (fDigits) {
130 fDigits->Delete();
131 delete fDigits;
132 fDigits = 0;
133 }
88cb7938 134
135 if (fLoader)
136 {
137 fLoader->GetModulesFolder()->Remove(this);
138 }
139
fe4da5cc 140}
9e1a0ddb 141
6644b9ca 142//_______________________________________________________________________
3a83c716 143void AliDetector::Publish(const char */*dir*/, void */*address*/, const char */*name*/) const
9e1a0ddb 144{
88cb7938 145//
146// Register pointer to detector objects.
147//
88cb7938 148 MayNotUse("Publish");
9e1a0ddb 149}
150
6644b9ca 151//_______________________________________________________________________
152TBranch* AliDetector::MakeBranchInTree(TTree *tree, const char* name,
153 void* address, Int_t size,
154 const char *file)
9e1a0ddb 155{
d0f40f23 156 return(MakeBranchInTree(tree,name,0,address,size,99,file));
9e1a0ddb 157}
158
6644b9ca 159//_______________________________________________________________________
160TBranch* AliDetector::MakeBranchInTree(TTree *tree, const char* name,
161 const char *classname,
162 void* address,Int_t size,
d1898505 163 Int_t splitlevel, const char */*file*/)
9e1a0ddb 164{
88cb7938 165//
166// Makes branch in given tree and diverts them to a separate file
167//
168//
169//
a96ab15b 170
594d8990 171 AliDebug(2,Form("Making Branch %s",name));
88cb7938 172 if (tree == 0x0)
173 {
594d8990 174 AliError(Form("Making Branch %s Tree is NULL",name));
88cb7938 175 return 0x0;
176 }
177 TBranch *branch = tree->GetBranch(name);
178 if (branch)
179 {
594d8990 180 AliDebug(2,Form("Branch %s is already in tree.",name));
9e1a0ddb 181 return branch;
88cb7938 182 }
183
184 if (classname)
185 {
186 branch = tree->Branch(name,classname,address,size,splitlevel);
187 }
188 else
189 {
a96ab15b 190 branch = tree->Bronch(name, "TClonesArray", address, size, splitlevel);
88cb7938 191 }
594d8990 192 AliDebug(2,Form("Branch %s returning branch %#x",name,branch));
88cb7938 193 return branch;
9e1a0ddb 194}
195
6644b9ca 196//_______________________________________________________________________
fe4da5cc 197void AliDetector::Browse(TBrowser *b)
198{
199 //
200 // Insert Detector objects in the list of objects to be browsed
201 //
202 char name[64];
203 if( fHits == 0) return;
204 TObject *obj;
205 Int_t i, nobjects;
206 //
207 nobjects = fHits->GetEntries();
208 for (i=0;i<nobjects;i++) {
209 obj = fHits->At(i);
210 sprintf(name,"%s_%d",obj->GetName(),i);
211 b->Add(obj, &name[0]);
212 }
213}
214
6644b9ca 215//_______________________________________________________________________
6c4904c2 216void AliDetector::Copy(TObject &) const
8918e700 217{
218 //
219 // Copy *this onto det -- not implemented
220 //
594d8990 221 AliFatal("Not implemented");
8918e700 222}
223
6644b9ca 224//_______________________________________________________________________
fe4da5cc 225void AliDetector::FinishRun()
226{
227 //
228 // Procedure called at the end of a run.
229 //
230}
231
6644b9ca 232//_______________________________________________________________________
fe4da5cc 233AliHit* AliDetector::FirstHit(Int_t track)
234{
235 //
236 // Initialise the hit iterator
237 // Return the address of the first hit for track
238 // If track>=0 the track is read from disk
239 // while if track<0 the first hit of the current
240 // track is returned
241 //
242 if(track>=0) {
88cb7938 243 gAlice->ResetHits(); //stupid = if N detector this method is called N times
244 TreeH()->GetEvent(track); //skowron
fe4da5cc 245 }
246 //
3a83c716 247 fMaxIterHit=fHits->GetEntriesFast();
248 fCurIterHit=0;
249 if(fMaxIterHit) return dynamic_cast<AliHit*>(fHits->UncheckedAt(0));
fe4da5cc 250 else return 0;
251}
252
6644b9ca 253//_______________________________________________________________________
fe4da5cc 254AliHit* AliDetector::NextHit()
255{
256 //
257 // Return the next hit for the current track
258 //
3a83c716 259 if(fMaxIterHit) {
260 if(++fCurIterHit<fMaxIterHit)
261 return dynamic_cast<AliHit*>(fHits->UncheckedAt(fCurIterHit));
fe4da5cc 262 else
263 return 0;
264 } else {
594d8990 265 AliWarning("Hit Iterator called without calling FistHit before");
fe4da5cc 266 return 0;
267 }
268}
6644b9ca 269
6644b9ca 270//_______________________________________________________________________
fe4da5cc 271void AliDetector::LoadPoints(Int_t)
272{
273 //
274 // Store x, y, z of all hits in memory
275 //
88cb7938 276 if (fHits == 0)
277 {
594d8990 278 AliError(Form("fHits == 0. Name is %s",GetName()));
88cb7938 279 return;
280 }
fe4da5cc 281 //
fe4da5cc 282 Int_t nhits = fHits->GetEntriesFast();
88cb7938 283 if (nhits == 0)
284 {
285// Error("LoadPoints","nhits == 0. Name is %s",GetName());
286 return;
287 }
5d12ce38 288 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
080a67a1 289 if (fPoints == 0) fPoints = new TObjArray(tracks);
fe4da5cc 290 AliHit *ahit;
291 //
080a67a1 292 Int_t *ntrk=new Int_t[tracks];
293 Int_t *limi=new Int_t[tracks];
294 Float_t **coor=new Float_t*[tracks];
295 for(Int_t i=0;i<tracks;i++) {
296 ntrk[i]=0;
297 coor[i]=0;
298 limi[i]=0;
299 }
300 //
fe4da5cc 301 AliPoints *points = 0;
080a67a1 302 Float_t *fp=0;
303 Int_t trk;
304 Int_t chunk=nhits/4+1;
fe4da5cc 305 //
306 // Loop over all the hits and store their position
307 for (Int_t hit=0;hit<nhits;hit++) {
e2afb3b6 308 ahit = dynamic_cast<AliHit*>(fHits->UncheckedAt(hit));
080a67a1 309 trk=ahit->GetTrack();
f08c15f7 310 if(trk>tracks) {
311 AliError(Form("Found track number %d, max track %d",trk, tracks));
312 continue;
313 }
88cb7938 314 if(ntrk[trk]==limi[trk])
315 {
fe4da5cc 316 //
317 // Initialise a new track
080a67a1 318 fp=new Float_t[3*(limi[trk]+chunk)];
88cb7938 319 if(coor[trk])
320 {
321 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
322 delete [] coor[trk];
323 }
080a67a1 324 limi[trk]+=chunk;
325 coor[trk] = fp;
88cb7938 326 }
327 else
328 {
080a67a1 329 fp = coor[trk];
88cb7938 330 }
94de3818 331 fp[3*ntrk[trk] ] = ahit->X();
332 fp[3*ntrk[trk]+1] = ahit->Y();
333 fp[3*ntrk[trk]+2] = ahit->Z();
080a67a1 334 ntrk[trk]++;
335 }
336 //
337 for(trk=0; trk<tracks; ++trk) {
338 if(ntrk[trk]) {
339 points = new AliPoints();
fe4da5cc 340 points->SetMarkerColor(GetMarkerColor());
fe4da5cc 341 points->SetMarkerSize(GetMarkerSize());
342 points->SetDetector(this);
343 points->SetParticle(trk);
080a67a1 344 points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle());
345 fPoints->AddAt(points,trk);
346 delete [] coor[trk];
347 coor[trk]=0;
fe4da5cc 348 }
fe4da5cc 349 }
080a67a1 350 delete [] coor;
351 delete [] ntrk;
352 delete [] limi;
fe4da5cc 353}
354
6644b9ca 355//_______________________________________________________________________
88cb7938 356void AliDetector::MakeBranch(Option_t *option)
fe4da5cc 357{
358 //
88cb7938 359 // Create a new branch for this detector in its treeH
fe4da5cc 360 //
88cb7938 361
594d8990 362 AliDebug(2,Form(" for %s",GetName()));
5cf7bbad 363 const char *cH = strstr(option,"H");
2ab0c725 364
88cb7938 365 if (fHits && TreeH() && cH)
366 {
367 MakeBranchInTree(TreeH(), GetName(), &fHits, fBufferSize, 0);
368 }
aab9c8d5 369}
fe4da5cc 370
6644b9ca 371//_______________________________________________________________________
fe4da5cc 372void AliDetector::ResetDigits()
373{
374 //
375 // Reset number of digits and the digits array
376 //
377 fNdigits = 0;
88cb7938 378 if (fDigits) fDigits->Clear();
fe4da5cc 379}
380
6644b9ca 381//_______________________________________________________________________
fe4da5cc 382void AliDetector::ResetHits()
383{
384 //
385 // Reset number of hits and the hits array
386 //
387 fNhits = 0;
88cb7938 388 if (fHits) fHits->Clear();
fe4da5cc 389}
390
6644b9ca 391//_______________________________________________________________________
fe4da5cc 392void AliDetector::ResetPoints()
393{
394 //
395 // Reset array of points
396 //
397 if (fPoints) {
398 fPoints->Delete();
399 delete fPoints;
400 fPoints = 0;
401 }
402}
403
6644b9ca 404//_______________________________________________________________________
fe4da5cc 405void AliDetector::SetTreeAddress()
406{
407 //
408 // Set branch address for the Hits and Digits Trees
409 //
410 TBranch *branch;
fe4da5cc 411 //
412 // Branch address for hit tree
88cb7938 413
414 TTree *tree = TreeH();
415 if (tree && fHits) {
416 branch = tree->GetBranch(GetName());
417 if (branch)
418 {
594d8990 419 AliDebug(2,Form("(%s) Setting for Hits",GetName()));
88cb7938 420 branch->SetAddress(&fHits);
421 }
422 else
f2a509af 423 { //can be invoked before branch creation
594d8990 424 AliDebug(2,Form("(%s) Failed for Hits. Can not find branch in tree.",GetName()));
88cb7938 425 }
fe4da5cc 426 }
88cb7938 427
fe4da5cc 428 //
429 // Branch address for digit tree
88cb7938 430 TTree *treeD = fLoader->TreeD();
fe4da5cc 431 if (treeD && fDigits) {
88cb7938 432 branch = treeD->GetBranch(GetName());
fe4da5cc 433 if (branch) branch->SetAddress(&fDigits);
434 }
2cad796f 435
436 AliModule::SetTreeAddress();
fe4da5cc 437}
438
88cb7938 439//_______________________________________________________________________
440void AliDetector::MakeTree(Option_t *option)
441 {
442 //makes a tree (container) for the data defined in option
443 //"H" - hits
444 //"D" - digits
445 //"S" - summable digits
446 //"R" - recontructed points and tracks
fe4da5cc 447
88cb7938 448 AliLoader* loader = GetLoader();
449 if (loader == 0x0)
450 {
594d8990 451 AliError(Form("Can not get loader for %s",GetName()));
88cb7938 452 return;
453 }
454 loader->MakeTree(option); //delegate this job to getter
455 }
456
457//_______________________________________________________________________
458AliLoader* AliDetector::MakeLoader(const char* topfoldername)
459{
460//builds standard getter (AliLoader type)
461//if detector wants to use castomized getter, it must overload this method
462
594d8990 463 AliDebug(1,Form("Creating standard getter for detector %s. Top folder is %s.",
464 GetName(),topfoldername));
88cb7938 465
466 fLoader = new AliLoader(GetName(),topfoldername);
467 return fLoader;
88cb7938 468}
469
470//_______________________________________________________________________
3a83c716 471TTree* AliDetector::TreeH() const
88cb7938 472{
473//Get the hits container from the folder
474 if (GetLoader() == 0x0)
475 {
476 //sunstitude this with make getter when we can obtain the event folder name
594d8990 477 AliError("Can not get the getter");
88cb7938 478 return 0x0;
479 }
480
481 TTree* tree = (TTree*)GetLoader()->TreeH();
482 return tree;
483}
484