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 "AliRawDataHeaderV3.h"
55 #include "AliDigitizationInput.h"
66 Float_t AliModule::fgDensityFactor = 1.0;
68 //_______________________________________________________________________
69 AliModule::AliModule():
77 fCurrentIterTrackRef(0),
82 // Default constructor for the AliModule class
86 //_______________________________________________________________________
87 AliModule::AliModule(const char* name,const char *title):
89 fIdtmed(new TArrayI(100)),
90 fIdmate(new TArrayI(100)),
96 fCurrentIterTrackRef(0),
101 // Normal constructor invoked by all Modules.
102 // Create the list for Module specific histograms
103 // Add this Module to the global list of Modules in Run.
105 // Get the Module numeric ID
107 Int_t id = gAlice->GetModuleID(name);
109 // Module already added !
110 AliWarning(Form("Module: %s already present at %d",name,id));
114 // Add this Module to the list of Modules
116 gAlice->AddModule(this);
118 //PH SetMarkerColor(3);
120 // Clear space for tracking media and material indexes
122 for(Int_t i=0;i<100;i++) (*fIdmate)[i]=(*fIdtmed)[i]=0;
125 //_______________________________________________________________________
126 AliModule::~AliModule()
132 // Remove this Module from the list of Modules
134 TObjArray * modules = gAlice->Modules();
135 if (modules) modules->Remove(this);
138 // Delete TArray objects
144 //_______________________________________________________________________
145 void AliModule::AliMaterial(Int_t imat, const char* name, Float_t a,
146 Float_t z, Float_t dens, Float_t radl,
147 Float_t absl, Float_t *buf, Int_t nwbuf) const
150 // Store the parameters for a material
152 // imat the material index will be stored in (*fIdmate)[imat]
153 // name material name
157 // radl radiation length
158 // absl absorbtion length
159 // buf adress of an array user words
160 // nwbuf number of user words
163 //Build the string uniquename as "DET_materialname"
164 TString uniquename = GetName();
165 uniquename.Append("_");
166 uniquename.Append(name);
167 //if geometry loaded from file only fill fIdmate, else create material too
168 if(AliSimulation::Instance()->IsGeometryFromFile()){
169 TGeoMaterial *mat = gGeoManager->GetMaterial(uniquename.Data());
170 kmat = mat->GetUniqueID();
171 (*fIdmate)[imat]=kmat;
173 if (fgDensityFactor != 1.0)
174 AliWarning(Form("Material density multiplied by %.2f!", fgDensityFactor));
175 TVirtualMC::GetMC()->Material(kmat, uniquename.Data(), a, z, dens * fgDensityFactor, radl, absl, buf, nwbuf);
176 (*fIdmate)[imat]=kmat;
180 //_______________________________________________________________________
181 void AliModule::AliGetMaterial(Int_t imat, char* name, Float_t &a,
182 Float_t &z, Float_t &dens, Float_t &radl,
186 // Store the parameters for a material
188 // imat the material index will be stored in (*fIdmate)[imat]
189 // name material name
193 // radl radiation length
194 // absl absorbtion length
195 // buf adress of an array user words
196 // nwbuf number of user words
199 Int_t kmat=(*fIdmate)[imat];
202 Double_t da, dz, ddens, dradl, dabsl;
203 TVirtualMC::GetMC()->GetMaterial(kmat, sname, da, dz, ddens, dradl, dabsl, par);
205 const char* chname = sname.Data();
206 strncpy(name, chname, strlen(chname)+1);
214 //_______________________________________________________________________
215 void AliModule::AliMixture(Int_t imat, const char *name, Float_t *a,
216 Float_t *z, Float_t dens, Int_t nlmat,
220 // Defines mixture or compound imat as composed by
221 // nlmat materials defined by arrays a, z and wmat
223 // If nlmat > 0 wmat contains the proportion by
224 // weights of each basic material in the mixture
226 // If nlmat < 0 wmat contains the number of atoms
227 // of eack kind in the molecule of the compound
228 // In this case, wmat is changed on output to the relative weigths.
230 // imat the material index will be stored in (*fIdmate)[imat]
231 // name material name
232 // a array of atomic masses
233 // z array of atomic numbers
235 // nlmat number of components
236 // wmat array of concentrations
239 //Build the string uniquename as "DET_mixturename"
240 TString uniquename = GetName();
241 uniquename.Append("_");
242 uniquename.Append(name);
243 //if geometry loaded from file only fill fIdmate, else create mixture too
244 if(AliSimulation::Instance()->IsGeometryFromFile()){
245 TGeoMaterial *mat = gGeoManager->GetMaterial(uniquename.Data());
246 kmat = mat->GetUniqueID();
247 (*fIdmate)[imat]=kmat;
249 if (fgDensityFactor != 1.0)
250 AliWarning(Form("Material density multiplied by %.2f!", fgDensityFactor));
251 TVirtualMC::GetMC()->Mixture(kmat, uniquename.Data(), a, z, dens * fgDensityFactor, nlmat, wmat);
252 (*fIdmate)[imat]=kmat;
256 //_______________________________________________________________________
257 void AliModule::AliMedium(Int_t numed, const char *name, Int_t nmat,
258 Int_t isvol, Int_t ifield, Float_t fieldm,
259 Float_t tmaxfd, Float_t stemax, Float_t deemax,
260 Float_t epsil, Float_t stmin, Float_t *ubuf,
264 // Store the parameters of a tracking medium
266 // numed the medium number is stored into (*fIdtmed)[numed]
268 // nmat the material number is stored into (*fIdmate)[nmat]
269 // isvol sensitive volume if isvol!=0
270 // ifield magnetic field flag (see below)
271 // fieldm maximum magnetic field
272 // tmaxfd maximum deflection angle due to magnetic field
273 // stemax maximum step allowed
274 // deemax maximum fractional energy loss in one step
275 // epsil tracking precision in cm
276 // stmin minimum step due to continuous processes
278 // ifield = 0 no magnetic field
279 // = -1 user decision in guswim
280 // = 1 tracking performed with Runge Kutta
281 // = 2 tracking performed with helix
282 // = 3 constant magnetic field along z
285 //Build the string uniquename as "DET_mediumname"
286 TString uniquename = GetName();
287 uniquename.Append("_");
288 uniquename.Append(name);
289 //if geometry loaded from file only fill fIdtmed, else create medium too
290 if(AliSimulation::Instance()->IsGeometryFromFile()){
291 TGeoMedium *med = gGeoManager->GetMedium(uniquename.Data());
293 (*fIdtmed)[numed]=kmed;
295 TVirtualMC::GetMC()->Medium(kmed, uniquename.Data(), (*fIdmate)[nmat], isvol, ifield,
296 fieldm, tmaxfd, stemax, deemax, epsil, stmin, ubuf, nbuf);
297 (*fIdtmed)[numed]=kmed;
301 //_______________________________________________________________________
302 void AliModule::AliMatrix(Int_t &nmat, Float_t theta1, Float_t phi1,
303 Float_t theta2, Float_t phi2, Float_t theta3,
307 // Define a rotation matrix. Angles are in degrees.
309 // nmat on output contains the number assigned to the rotation matrix
310 // theta1 polar angle for axis I
311 // phi1 azimuthal angle for axis I
312 // theta2 polar angle for axis II
313 // phi2 azimuthal angle for axis II
314 // theta3 polar angle for axis III
315 // phi3 azimuthal angle for axis III
317 TVirtualMC::GetMC()->Matrix(nmat, theta1, phi1, theta2, phi2, theta3, phi3);
320 //_______________________________________________________________________
321 Float_t AliModule::ZMin() const
326 //_______________________________________________________________________
327 Float_t AliModule::ZMax() const
332 //_______________________________________________________________________
333 void AliModule::AddAlignableVolumes() const
337 AliWarning(Form(" %s still has to implement the AddAlignableVolumes method!",GetName()));
340 //_______________________________________________________________________
342 AliLoader* AliModule::MakeLoader(const char* /*topfoldername*/)
348 //_____________________________________________________________________________
349 AliTrackReference* AliModule::AddTrackReference(Int_t label, Int_t id){
351 // add a trackrefernce to the list
352 return (gAlice->GetMCApp()->AddTrackReference(label, id));
355 //_____________________________________________________________________________
356 TTree* AliModule::TreeTR()
359 // Return TR tree pointer
361 if ( fRunLoader == 0x0)
363 AliError("Can not get the run loader");
367 TTree* tree = fRunLoader->TreeTR();
372 //_____________________________________________________________________________
373 void AliModule::Digits2Raw()
375 // This is a dummy version that just copies the digits file contents
376 // to a raw data file.
378 AliWarning(Form("Dummy version called for %s", GetName()));
380 Int_t nDDLs = AliDAQ::NumberOfDdls(GetName());
382 if (!GetLoader()) return;
383 fstream digitsFile(GetLoader()->GetDigitsFileName(), ios::in);
384 if (!digitsFile) return;
386 digitsFile.seekg(0, ios::end);
387 UInt_t size = digitsFile.tellg();
388 UInt_t ddlSize = 4 * (size / (4*nDDLs));
389 Char_t* buffer = new Char_t[ddlSize+1];
391 for (Int_t iDDL = 0; iDDL < nDDLs; iDDL++) {
392 char fileName[256]="";
393 strncpy(fileName,AliDAQ::DdlFileName(GetName(),iDDL),255);
394 fstream rawFile(fileName, ios::out);
397 AliRawDataHeaderV3 header;
398 header.fSize = ddlSize + sizeof(header);
399 rawFile.write((char*) &header, sizeof(header));
401 digitsFile.read(buffer, ddlSize);
402 rawFile.write(buffer, ddlSize);