1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // Base class for ALICE modules. Both sensitive modules (Modules) 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. //
25 // This class is also responsible for building the geometry of the //
30 <img src="picts/AliModuleClass.gif">
34 ///////////////////////////////////////////////////////////////////////////////
36 #include <TObjArray.h>
37 #include <TClonesArray.h>
40 #include <TDirectory.h>
41 #include <TVirtualMC.h>
42 #include <TGeoManager.h>
46 #include "AliConfig.h"
47 #include "AliLoader.h"
49 #include "AliModule.h"
51 #include "AliTrackReference.h"
53 #include "AliSimulation.h"
54 #include "AliRawDataHeader.h"
60 Float_t AliModule::fgDensityFactor = 1.0;
62 //_______________________________________________________________________
63 AliModule::AliModule():
71 fCurrentIterTrackRef(0),
75 // Default constructor for the AliModule class
79 //_______________________________________________________________________
80 AliModule::AliModule(const char* name,const char *title):
82 fIdtmed(new TArrayI(100)),
83 fIdmate(new TArrayI(100)),
89 fCurrentIterTrackRef(0),
93 // Normal constructor invoked by all Modules.
94 // Create the list for Module specific histograms
95 // Add this Module to the global list of Modules in Run.
97 // Get the Module numeric ID
99 Int_t id = gAlice->GetModuleID(name);
101 // Module already added !
102 AliWarning(Form("Module: %s already present at %d",name,id));
106 // Add this Module to the list of Modules
108 gAlice->AddModule(this);
110 //PH SetMarkerColor(3);
112 // Clear space for tracking media and material indexes
114 for(Int_t i=0;i<100;i++) (*fIdmate)[i]=(*fIdtmed)[i]=0;
117 //_______________________________________________________________________
118 AliModule::~AliModule()
124 // Remove this Module from the list of Modules
126 TObjArray * modules = gAlice->Modules();
127 if (modules) modules->Remove(this);
130 // Delete TArray objects
136 //_______________________________________________________________________
137 void AliModule::AliMaterial(Int_t imat, const char* name, Float_t a,
138 Float_t z, Float_t dens, Float_t radl,
139 Float_t absl, Float_t *buf, Int_t nwbuf) const
142 // Store the parameters for a material
144 // imat the material index will be stored in (*fIdmate)[imat]
145 // name material name
149 // radl radiation length
150 // absl absorbtion length
151 // buf adress of an array user words
152 // nwbuf number of user words
155 //Build the string uniquename as "DET_materialname"
156 TString uniquename = GetName();
157 uniquename.Append("_");
158 uniquename.Append(name);
159 //if geometry loaded from file only fill fIdmate, else create material too
160 if(AliSimulation::Instance()->IsGeometryFromFile()){
161 TGeoMaterial *mat = gGeoManager->GetMaterial(uniquename.Data());
162 kmat = mat->GetUniqueID();
163 (*fIdmate)[imat]=kmat;
165 if (fgDensityFactor != 1.0)
166 AliWarning(Form("Material density multiplied by %.2f!", fgDensityFactor));
167 gMC->Material(kmat, uniquename.Data(), a, z, dens * fgDensityFactor, radl, absl, buf, nwbuf);
168 (*fIdmate)[imat]=kmat;
172 //_______________________________________________________________________
173 void AliModule::AliGetMaterial(Int_t imat, char* name, Float_t &a,
174 Float_t &z, Float_t &dens, Float_t &radl,
178 // Store the parameters for a material
180 // imat the material index will be stored in (*fIdmate)[imat]
181 // name material name
185 // radl radiation length
186 // absl absorbtion length
187 // buf adress of an array user words
188 // nwbuf number of user words
193 kmat=(*fIdmate)[imat];
194 gMC->Gfmate(kmat, name, a, z, dens, radl, absl, buf, nwbuf);
198 //_______________________________________________________________________
199 void AliModule::AliMixture(Int_t imat, const char *name, Float_t *a,
200 Float_t *z, Float_t dens, Int_t nlmat,
204 // Defines mixture or compound imat as composed by
205 // nlmat materials defined by arrays a, z and wmat
207 // If nlmat > 0 wmat contains the proportion by
208 // weights of each basic material in the mixture
210 // If nlmat < 0 wmat contains the number of atoms
211 // of eack kind in the molecule of the compound
212 // In this case, wmat is changed on output to the relative weigths.
214 // imat the material index will be stored in (*fIdmate)[imat]
215 // name material name
216 // a array of atomic masses
217 // z array of atomic numbers
219 // nlmat number of components
220 // wmat array of concentrations
223 //Build the string uniquename as "DET_mixturename"
224 TString uniquename = GetName();
225 uniquename.Append("_");
226 uniquename.Append(name);
227 //if geometry loaded from file only fill fIdmate, else create mixture too
228 if(AliSimulation::Instance()->IsGeometryFromFile()){
229 TGeoMaterial *mat = gGeoManager->GetMaterial(uniquename.Data());
230 kmat = mat->GetUniqueID();
231 (*fIdmate)[imat]=kmat;
233 if (fgDensityFactor != 1.0)
234 AliWarning(Form("Material density multiplied by %.2f!", fgDensityFactor));
235 gMC->Mixture(kmat, uniquename.Data(), a, z, dens * fgDensityFactor, nlmat, wmat);
236 (*fIdmate)[imat]=kmat;
240 //_______________________________________________________________________
241 void AliModule::AliMedium(Int_t numed, const char *name, Int_t nmat,
242 Int_t isvol, Int_t ifield, Float_t fieldm,
243 Float_t tmaxfd, Float_t stemax, Float_t deemax,
244 Float_t epsil, Float_t stmin, Float_t *ubuf,
248 // Store the parameters of a tracking medium
250 // numed the medium number is stored into (*fIdtmed)[numed]
252 // nmat the material number is stored into (*fIdmate)[nmat]
253 // isvol sensitive volume if isvol!=0
254 // ifield magnetic field flag (see below)
255 // fieldm maximum magnetic field
256 // tmaxfd maximum deflection angle due to magnetic field
257 // stemax maximum step allowed
258 // deemax maximum fractional energy loss in one step
259 // epsil tracking precision in cm
260 // stmin minimum step due to continuous processes
262 // ifield = 0 no magnetic field
263 // = -1 user decision in guswim
264 // = 1 tracking performed with Runge Kutta
265 // = 2 tracking performed with helix
266 // = 3 constant magnetic field along z
269 //Build the string uniquename as "DET_mediumname"
270 TString uniquename = GetName();
271 uniquename.Append("_");
272 uniquename.Append(name);
273 //if geometry loaded from file only fill fIdtmed, else create medium too
274 if(AliSimulation::Instance()->IsGeometryFromFile()){
275 TGeoMedium *med = gGeoManager->GetMedium(uniquename.Data());
277 (*fIdtmed)[numed]=kmed;
279 gMC->Medium(kmed, uniquename.Data(), (*fIdmate)[nmat], isvol, ifield,
280 fieldm, tmaxfd, stemax, deemax, epsil, stmin, ubuf, nbuf);
281 (*fIdtmed)[numed]=kmed;
285 //_______________________________________________________________________
286 void AliModule::AliMatrix(Int_t &nmat, Float_t theta1, Float_t phi1,
287 Float_t theta2, Float_t phi2, Float_t theta3,
291 // Define a rotation matrix. Angles are in degrees.
293 // nmat on output contains the number assigned to the rotation matrix
294 // theta1 polar angle for axis I
295 // phi1 azimuthal angle for axis I
296 // theta2 polar angle for axis II
297 // phi2 azimuthal angle for axis II
298 // theta3 polar angle for axis III
299 // phi3 azimuthal angle for axis III
301 gMC->Matrix(nmat, theta1, phi1, theta2, phi2, theta3, phi3);
304 //_______________________________________________________________________
305 Float_t AliModule::ZMin() const
310 //_______________________________________________________________________
311 Float_t AliModule::ZMax() const
316 //_______________________________________________________________________
317 void AliModule::AddAlignableVolumes() const
321 AliWarning(Form(" %s still has to implement the AddAlignableVolumes method!",GetName()));
324 //_______________________________________________________________________
326 AliLoader* AliModule::MakeLoader(const char* /*topfoldername*/)
332 //_____________________________________________________________________________
333 AliTrackReference* AliModule::AddTrackReference(Int_t label, Int_t id){
335 // add a trackrefernce to the list
336 return (gAlice->GetMCApp()->AddTrackReference(label, id));
339 //_____________________________________________________________________________
340 TTree* AliModule::TreeTR()
343 // Return TR tree pointer
345 if ( fRunLoader == 0x0)
347 AliError("Can not get the run loader");
351 TTree* tree = fRunLoader->TreeTR();
356 //_____________________________________________________________________________
357 void AliModule::Digits2Raw()
359 // This is a dummy version that just copies the digits file contents
360 // to a raw data file.
362 AliWarning(Form("Dummy version called for %s", GetName()));
364 Int_t nDDLs = AliDAQ::NumberOfDdls(GetName());
366 if (!GetLoader()) return;
367 fstream digitsFile(GetLoader()->GetDigitsFileName(), ios::in);
368 if (!digitsFile) return;
370 digitsFile.seekg(0, ios::end);
371 UInt_t size = digitsFile.tellg();
372 UInt_t ddlSize = 4 * (size / (4*nDDLs));
373 Char_t* buffer = new Char_t[ddlSize+1];
375 for (Int_t iDDL = 0; iDDL < nDDLs; iDDL++) {
376 char fileName[256]="";
377 strncpy(fileName,AliDAQ::DdlFileName(GetName(),iDDL),255);
378 fstream rawFile(fileName, ios::out);
381 AliRawDataHeader header;
382 header.fSize = ddlSize + sizeof(header);
383 rawFile.write((char*) &header, sizeof(header));
385 digitsFile.read(buffer, ddlSize);
386 rawFile.write(buffer, ddlSize);