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"
55 #include "AliDigitizationInput.h"
61 Float_t AliModule::fgDensityFactor = 1.0;
63 //_______________________________________________________________________
64 AliModule::AliModule():
72 fCurrentIterTrackRef(0),
77 // Default constructor for the AliModule class
81 //_______________________________________________________________________
82 AliModule::AliModule(const char* name,const char *title):
84 fIdtmed(new TArrayI(100)),
85 fIdmate(new TArrayI(100)),
91 fCurrentIterTrackRef(0),
96 // Normal constructor invoked by all Modules.
97 // Create the list for Module specific histograms
98 // Add this Module to the global list of Modules in Run.
100 // Get the Module numeric ID
102 Int_t id = gAlice->GetModuleID(name);
104 // Module already added !
105 AliWarning(Form("Module: %s already present at %d",name,id));
109 // Add this Module to the list of Modules
111 gAlice->AddModule(this);
113 //PH SetMarkerColor(3);
115 // Clear space for tracking media and material indexes
117 for(Int_t i=0;i<100;i++) (*fIdmate)[i]=(*fIdtmed)[i]=0;
120 //_______________________________________________________________________
121 AliModule::~AliModule()
127 // Remove this Module from the list of Modules
129 TObjArray * modules = gAlice->Modules();
130 if (modules) modules->Remove(this);
133 // Delete TArray objects
139 //_______________________________________________________________________
140 void AliModule::AliMaterial(Int_t imat, const char* name, Float_t a,
141 Float_t z, Float_t dens, Float_t radl,
142 Float_t absl, Float_t *buf, Int_t nwbuf) const
145 // Store the parameters for a material
147 // imat the material index will be stored in (*fIdmate)[imat]
148 // name material name
152 // radl radiation length
153 // absl absorbtion length
154 // buf adress of an array user words
155 // nwbuf number of user words
158 //Build the string uniquename as "DET_materialname"
159 TString uniquename = GetName();
160 uniquename.Append("_");
161 uniquename.Append(name);
162 //if geometry loaded from file only fill fIdmate, else create material too
163 if(AliSimulation::Instance()->IsGeometryFromFile()){
164 TGeoMaterial *mat = gGeoManager->GetMaterial(uniquename.Data());
165 kmat = mat->GetUniqueID();
166 (*fIdmate)[imat]=kmat;
168 if (fgDensityFactor != 1.0)
169 AliWarning(Form("Material density multiplied by %.2f!", fgDensityFactor));
170 gMC->Material(kmat, uniquename.Data(), a, z, dens * fgDensityFactor, radl, absl, buf, nwbuf);
171 (*fIdmate)[imat]=kmat;
175 //_______________________________________________________________________
176 void AliModule::AliGetMaterial(Int_t imat, char* name, Float_t &a,
177 Float_t &z, Float_t &dens, Float_t &radl,
181 // Store the parameters for a material
183 // imat the material index will be stored in (*fIdmate)[imat]
184 // name material name
188 // radl radiation length
189 // absl absorbtion length
190 // buf adress of an array user words
191 // nwbuf number of user words
196 kmat=(*fIdmate)[imat];
197 gMC->Gfmate(kmat, name, a, z, dens, radl, absl, buf, nwbuf);
201 //_______________________________________________________________________
202 void AliModule::AliMixture(Int_t imat, const char *name, Float_t *a,
203 Float_t *z, Float_t dens, Int_t nlmat,
207 // Defines mixture or compound imat as composed by
208 // nlmat materials defined by arrays a, z and wmat
210 // If nlmat > 0 wmat contains the proportion by
211 // weights of each basic material in the mixture
213 // If nlmat < 0 wmat contains the number of atoms
214 // of eack kind in the molecule of the compound
215 // In this case, wmat is changed on output to the relative weigths.
217 // imat the material index will be stored in (*fIdmate)[imat]
218 // name material name
219 // a array of atomic masses
220 // z array of atomic numbers
222 // nlmat number of components
223 // wmat array of concentrations
226 //Build the string uniquename as "DET_mixturename"
227 TString uniquename = GetName();
228 uniquename.Append("_");
229 uniquename.Append(name);
230 //if geometry loaded from file only fill fIdmate, else create mixture too
231 if(AliSimulation::Instance()->IsGeometryFromFile()){
232 TGeoMaterial *mat = gGeoManager->GetMaterial(uniquename.Data());
233 kmat = mat->GetUniqueID();
234 (*fIdmate)[imat]=kmat;
236 if (fgDensityFactor != 1.0)
237 AliWarning(Form("Material density multiplied by %.2f!", fgDensityFactor));
238 gMC->Mixture(kmat, uniquename.Data(), a, z, dens * fgDensityFactor, nlmat, wmat);
239 (*fIdmate)[imat]=kmat;
243 //_______________________________________________________________________
244 void AliModule::AliMedium(Int_t numed, const char *name, Int_t nmat,
245 Int_t isvol, Int_t ifield, Float_t fieldm,
246 Float_t tmaxfd, Float_t stemax, Float_t deemax,
247 Float_t epsil, Float_t stmin, Float_t *ubuf,
251 // Store the parameters of a tracking medium
253 // numed the medium number is stored into (*fIdtmed)[numed]
255 // nmat the material number is stored into (*fIdmate)[nmat]
256 // isvol sensitive volume if isvol!=0
257 // ifield magnetic field flag (see below)
258 // fieldm maximum magnetic field
259 // tmaxfd maximum deflection angle due to magnetic field
260 // stemax maximum step allowed
261 // deemax maximum fractional energy loss in one step
262 // epsil tracking precision in cm
263 // stmin minimum step due to continuous processes
265 // ifield = 0 no magnetic field
266 // = -1 user decision in guswim
267 // = 1 tracking performed with Runge Kutta
268 // = 2 tracking performed with helix
269 // = 3 constant magnetic field along z
272 //Build the string uniquename as "DET_mediumname"
273 TString uniquename = GetName();
274 uniquename.Append("_");
275 uniquename.Append(name);
276 //if geometry loaded from file only fill fIdtmed, else create medium too
277 if(AliSimulation::Instance()->IsGeometryFromFile()){
278 TGeoMedium *med = gGeoManager->GetMedium(uniquename.Data());
280 (*fIdtmed)[numed]=kmed;
282 gMC->Medium(kmed, uniquename.Data(), (*fIdmate)[nmat], isvol, ifield,
283 fieldm, tmaxfd, stemax, deemax, epsil, stmin, ubuf, nbuf);
284 (*fIdtmed)[numed]=kmed;
288 //_______________________________________________________________________
289 void AliModule::AliMatrix(Int_t &nmat, Float_t theta1, Float_t phi1,
290 Float_t theta2, Float_t phi2, Float_t theta3,
294 // Define a rotation matrix. Angles are in degrees.
296 // nmat on output contains the number assigned to the rotation matrix
297 // theta1 polar angle for axis I
298 // phi1 azimuthal angle for axis I
299 // theta2 polar angle for axis II
300 // phi2 azimuthal angle for axis II
301 // theta3 polar angle for axis III
302 // phi3 azimuthal angle for axis III
304 gMC->Matrix(nmat, theta1, phi1, theta2, phi2, theta3, phi3);
307 //_______________________________________________________________________
308 Float_t AliModule::ZMin() const
313 //_______________________________________________________________________
314 Float_t AliModule::ZMax() const
319 //_______________________________________________________________________
320 void AliModule::AddAlignableVolumes() const
324 AliWarning(Form(" %s still has to implement the AddAlignableVolumes method!",GetName()));
327 //_______________________________________________________________________
329 AliLoader* AliModule::MakeLoader(const char* /*topfoldername*/)
335 //_____________________________________________________________________________
336 AliTrackReference* AliModule::AddTrackReference(Int_t label, Int_t id){
338 // add a trackrefernce to the list
339 return (gAlice->GetMCApp()->AddTrackReference(label, id));
342 //_____________________________________________________________________________
343 TTree* AliModule::TreeTR()
346 // Return TR tree pointer
348 if ( fRunLoader == 0x0)
350 AliError("Can not get the run loader");
354 TTree* tree = fRunLoader->TreeTR();
359 //_____________________________________________________________________________
360 void AliModule::Digits2Raw()
362 // This is a dummy version that just copies the digits file contents
363 // to a raw data file.
365 AliWarning(Form("Dummy version called for %s", GetName()));
367 Int_t nDDLs = AliDAQ::NumberOfDdls(GetName());
369 if (!GetLoader()) return;
370 fstream digitsFile(GetLoader()->GetDigitsFileName(), ios::in);
371 if (!digitsFile) return;
373 digitsFile.seekg(0, ios::end);
374 UInt_t size = digitsFile.tellg();
375 UInt_t ddlSize = 4 * (size / (4*nDDLs));
376 Char_t* buffer = new Char_t[ddlSize+1];
378 for (Int_t iDDL = 0; iDDL < nDDLs; iDDL++) {
379 char fileName[256]="";
380 strncpy(fileName,AliDAQ::DdlFileName(GetName(),iDDL),255);
381 fstream rawFile(fileName, ios::out);
384 AliRawDataHeader header;
385 header.fSize = ddlSize + sizeof(header);
386 rawFile.write((char*) &header, sizeof(header));
388 digitsFile.read(buffer, ddlSize);
389 rawFile.write(buffer, ddlSize);