]>
Commit | Line | Data |
---|---|---|
526ddf0e | 1 | #include <iostream> |
2dd02504 | 2 | #include <fstream> |
a1a695e5 | 3 | |
526ddf0e | 4 | #include <TDatabasePDG.h> |
5 | #include <TRandom.h> | |
6 | #include <TH2F.h> | |
a1a695e5 | 7 | #include <TGeoGlobalMagField.h> |
32438f4e | 8 | #include <TSpline.h> |
cd8ed0ac | 9 | #include <TObjString.h> |
0403120d | 10 | #include <TROOT.h> |
2dd02504 | 11 | #include <TSystem.h> |
12 | #include <TObjArray.h> | |
a1a695e5 | 13 | |
b0c26b55 | 14 | #include <AliLog.h> |
a1a695e5 | 15 | #include <AliTPCROC.h> |
16 | #include <AliTrackPointArray.h> | |
526ddf0e | 17 | #include <AliTrackerBase.h> |
18 | #include <AliCDBManager.h> | |
19 | #include <AliTPCParam.h> | |
20 | #include <AliGeomManager.h> | |
21 | #include <AliTPCcalibDB.h> | |
526ddf0e | 22 | #include <AliTPCclusterMI.h> |
a1a695e5 | 23 | #include <AliTPCSpaceCharge3D.h> |
32438f4e | 24 | #include <AliTPCROC.h> |
0403120d | 25 | #include <AliExternalTrackParam.h> |
a1a695e5 | 26 | |
27 | #include "AliToyMCEvent.h" | |
28 | #include "AliToyMCTrack.h" | |
29 | ||
30 | #include "AliToyMCEventGenerator.h" | |
31 | ||
de0014b7 | 32 | ClassImp(AliToyMCEventGenerator); |
526ddf0e | 33 | |
34 | ||
de0014b7 | 35 | AliToyMCEventGenerator::AliToyMCEventGenerator() |
526ddf0e | 36 | :TObject() |
37 | ,fTPCParam(0x0) | |
a1a695e5 | 38 | ,fEvent(0x0) |
223d9e38 | 39 | ,fCurrentTrack(0) |
40 | ,fTPCCorrection(0x0) | |
2dd02504 | 41 | ,fSCList(0x0) |
42 | ,fSCListFile() | |
223d9e38 | 43 | ,fCorrectionFile("$ALICE_ROOT/TPC/Calib/maps/SC_NeCO2_eps5_50kHz_precal.lookup.root") |
a1a695e5 | 44 | ,fOutputFileName("toyMC.root") |
45 | ,fOutFile(0x0) | |
46 | ,fOutTree(0x0) | |
d92b8630 | 47 | ,fUseStepCorrection(kFALSE) |
d1cf83f5 | 48 | ,fUseMaterialBudget(kFALSE) |
0403120d | 49 | ,fIsLaser(kTRUE) |
2dd02504 | 50 | ,fPrereadSCList(kFALSE) |
526ddf0e | 51 | { |
526ddf0e | 52 | fTPCParam = AliTPCcalibDB::Instance()->GetParameters(); |
53 | fTPCParam->ReadGeoMatrices(); | |
223d9e38 | 54 | gRandom->SetSeed(); |
526ddf0e | 55 | } |
56 | //________________________________________________________________ | |
de0014b7 | 57 | AliToyMCEventGenerator::AliToyMCEventGenerator(const AliToyMCEventGenerator &gen) |
526ddf0e | 58 | :TObject(gen) |
a1a695e5 | 59 | ,fTPCParam(gen.fTPCParam) |
60 | ,fEvent(0x0) | |
223d9e38 | 61 | ,fCurrentTrack(0) |
62 | ,fTPCCorrection(gen.fTPCCorrection) | |
2dd02504 | 63 | ,fSCList(gen.fSCList) |
64 | ,fSCListFile(gen.fSCListFile) | |
223d9e38 | 65 | ,fCorrectionFile(gen.fCorrectionFile) |
a1a695e5 | 66 | ,fOutputFileName(gen.fOutputFileName) |
67 | ,fOutFile(0x0) | |
68 | ,fOutTree(0x0) | |
d92b8630 | 69 | ,fUseStepCorrection(gen.fUseStepCorrection) |
d1cf83f5 | 70 | ,fUseMaterialBudget(gen.fUseMaterialBudget) |
0403120d | 71 | ,fIsLaser(gen.fIsLaser) |
2dd02504 | 72 | ,fPrereadSCList(gen.fPrereadSCList) |
526ddf0e | 73 | { |
74 | // | |
223d9e38 | 75 | gRandom->SetSeed(); |
526ddf0e | 76 | } |
77 | //________________________________________________________________ | |
de0014b7 | 78 | AliToyMCEventGenerator::~AliToyMCEventGenerator() |
526ddf0e | 79 | { |
2dd02504 | 80 | if (HasSCList() &&!fPrereadSCList) delete fTPCCorrection; |
81 | delete fSCList; | |
526ddf0e | 82 | } |
32438f4e | 83 | |
526ddf0e | 84 | //________________________________________________________________ |
a1a695e5 | 85 | Bool_t AliToyMCEventGenerator::DistortTrack(AliToyMCTrack &trackIn, Double_t t0) |
86 | { | |
87 | // | |
88 | // | |
89 | // | |
90 | ||
526ddf0e | 91 | if(!fTPCParam) { |
92 | fTPCParam = AliTPCcalibDB::Instance()->GetParameters(); | |
93 | fTPCParam->ReadGeoMatrices(); | |
526ddf0e | 94 | } |
32438f4e | 95 | |
1e62e876 | 96 | MakeITSClusters(trackIn/*,t0*/); |
97 | MakeTPCClusters(trackIn, t0); | |
98 | MakeTRDClusters(trackIn/*,t0*/); | |
99 | ||
0403120d | 100 | return kTRUE; |
1e62e876 | 101 | } |
102 | //________________________________________________________________ | |
103 | void AliToyMCEventGenerator::MakeITSClusters(AliToyMCTrack &trackIn/*, Double_t t0*/) | |
104 | { | |
105 | //Upgrade ITS parameters | |
106 | const Int_t nITSLayers = 7; | |
107 | const Double_t ITSRadii[nITSLayers] = {2.2, 2.8, 3.6, 20.0, 22.0, 41.0, 43.0}; | |
108 | const Double_t lengthITS[nITSLayers] = {22.4, 24.2, 26.8, 78.0, 83.6, 142.4, 148.6}; | |
109 | ||
e83fd282 | 110 | //resolution of the point is 10um |
111 | const Float_t sigmaY = 0.001; | |
112 | const Float_t sigmaZ = 0.001; | |
113 | ||
114 | AliTrackPoint point; | |
115 | ||
1e62e876 | 116 | const Double_t kMaxSnp = 0.85; |
e83fd282 | 117 | // const Double_t kMaxZ0 = fTPCParam->GetZLength(); |
1e62e876 | 118 | const Double_t kMass = TDatabasePDG::Instance()->GetParticle("pi+")->Mass(); |
119 | ||
0403120d | 120 | AliExternalTrackParam track(trackIn); |
1e62e876 | 121 | Double_t xyz[3] = {0.,0.,0.}; |
122 | ||
123 | if (!AliTrackerBase::PropagateTrackTo(&track,ITSRadii[0],kMass,5,kTRUE,kMaxSnp,0,kFALSE,fUseMaterialBudget)) { | |
124 | AliError(Form("Propagation to %.2f failed\n",ITSRadii[0])); | |
125 | return; | |
126 | } | |
127 | ||
128 | for(Int_t iLayer = 0; iLayer<nITSLayers; iLayer++){ | |
129 | ||
130 | if (!AliTrackerBase::PropagateTrackTo(&track,ITSRadii[iLayer],kMass,1,kTRUE,kMaxSnp,0,kFALSE,fUseMaterialBudget)) { | |
131 | AliError(Form("Propagation to %.2f failed\n",ITSRadii[iLayer])); | |
132 | continue; | |
133 | } | |
e83fd282 | 134 | // since I don't know how to extract the volumeid of the ITS layers I use the following strategy: |
135 | // - rotate the track to the next integer angle | |
136 | // - use coordinates there and set as volumeid the integer angle | |
137 | // - in the reco one can then rotate the cluster to the global frame using the angle stored in the volume id | |
1e62e876 | 138 | track.GetXYZ(xyz); |
139 | ||
e83fd282 | 140 | // if (TMath::Abs(track.GetZ())>kMaxZ0) continue; |
1e62e876 | 141 | if (TMath::Abs(track.GetZ())>lengthITS[iLayer]/2) continue; |
e83fd282 | 142 | |
143 | ||
144 | // smear the ideal positions with the cluster resolution | |
145 | xyz[1]+=gRandom->Gaus(0,sigmaY); | |
146 | xyz[2]+=gRandom->Gaus(0,sigmaZ); | |
147 | ||
148 | Float_t xyzf[3]={xyz[0],xyz[1],xyz[2]}; | |
149 | ||
150 | SetPoint(xyzf,sigmaY,sigmaZ,point); | |
1e62e876 | 151 | |
e83fd282 | 152 | trackIn.AddITSPoint(point)->SetUniqueID(trackIn.GetUniqueID()); |
1e62e876 | 153 | } |
154 | ||
155 | } | |
156 | //________________________________________________________________ | |
157 | void AliToyMCEventGenerator::MakeTRDClusters(AliToyMCTrack &trackIn/*, Double_t t0*/) | |
158 | ||
159 | { | |
160 | //Uses current TRD parameters | |
161 | const Int_t nTRDLayers = 6; | |
162 | const Double_t distToMid = 3.2 + 30./2; //dist to middle of drift region (radiator + half drift region) | |
163 | const Double_t TRDRadii[nTRDLayers] = {294.5 + distToMid, 307.1 + distToMid, 319.7 + distToMid, 332.3 + distToMid, 344.9 + distToMid, 357.5 + distToMid}; | |
164 | const Double_t lengthTRD[nTRDLayers] = {604.0, 634.0, 656.0, 686.0, 700.0, 700.0}; | |
165 | ||
e83fd282 | 166 | const Float_t sigmaY = 0.06; |
167 | const Float_t sigmaZ = 0.2; | |
1e62e876 | 168 | |
e83fd282 | 169 | AliTrackPoint point; |
170 | ||
1e62e876 | 171 | const Double_t kMaxSnp = 0.85; |
172 | const Double_t kMaxZ0 = fTPCParam->GetZLength(); | |
173 | const Double_t kMass = TDatabasePDG::Instance()->GetParticle("pi+")->Mass(); | |
174 | ||
0403120d | 175 | AliExternalTrackParam track(trackIn); |
1e62e876 | 176 | Double_t xyz[3] = {0.,0.,0.}; |
177 | ||
178 | if (!AliTrackerBase::PropagateTrackTo(&track,TRDRadii[0],kMass,5,kTRUE,kMaxSnp,0,kFALSE,fUseMaterialBudget)) { | |
179 | AliError(Form("Propagation to %.2f failed\n",TRDRadii[0])); | |
180 | return; | |
181 | } | |
182 | ||
183 | for(Int_t iLayer = 0; iLayer<nTRDLayers; iLayer++){ | |
184 | ||
185 | if (!AliTrackerBase::PropagateTrackTo(&track,TRDRadii[iLayer],kMass,1,kTRUE,kMaxSnp,0,kFALSE,fUseMaterialBudget)) { | |
186 | AliError(Form("Propagation to %.2f failed\n",TRDRadii[iLayer])); | |
187 | continue; | |
188 | } | |
189 | track.GetXYZ(xyz); | |
190 | ||
191 | if (TMath::Abs(track.GetZ())>kMaxZ0) continue; | |
192 | if (TMath::Abs(track.GetZ())>lengthTRD[iLayer]/2) continue; | |
193 | ||
e83fd282 | 194 | |
195 | // smear the ideal positions with the cluster resolution | |
196 | xyz[1]+=gRandom->Gaus(0,sigmaY); | |
197 | xyz[2]+=gRandom->Gaus(0,sigmaZ); | |
198 | ||
199 | Float_t xyzf[3]={xyz[0],xyz[1],xyz[2]}; | |
200 | ||
201 | SetPoint(xyzf,sigmaY,sigmaZ,point); | |
202 | ||
203 | trackIn.AddTRDPoint(point)->SetUniqueID(trackIn.GetUniqueID()); | |
1e62e876 | 204 | } |
205 | ||
206 | } | |
207 | //________________________________________________________________ | |
208 | void AliToyMCEventGenerator::MakeTPCClusters(AliToyMCTrack &trackIn, Double_t t0) | |
209 | { | |
210 | ||
32438f4e | 211 | // make it big enough to hold all points |
212 | // store real number of generated points in the unique id | |
213 | const Int_t nMaxPoints=3000; | |
0403120d | 214 | static AliTrackPointArray pointArray0(nMaxPoints); //undistorted |
215 | static AliTrackPointArray pointArray1(nMaxPoints); //distorted | |
1e62e876 | 216 | |
32438f4e | 217 | //Create space point of undistorted and distorted clusters along the propagated track trajectory |
218 | CreateSpacePoints(trackIn,pointArray0,pointArray1); | |
219 | //Convert the space points into clusters in the local frame | |
220 | //for undistorted and distorted clusters using the same function | |
221 | ConvertTrackPointsToLocalClusters(pointArray0,trackIn,t0,0); | |
222 | ConvertTrackPointsToLocalClusters(pointArray1,trackIn,t0,1); | |
526ddf0e | 223 | |
526ddf0e | 224 | |
1e62e876 | 225 | } |
32438f4e | 226 | //________________________________________________________________ |
227 | void AliToyMCEventGenerator::CreateSpacePoints(AliToyMCTrack &trackIn, | |
228 | AliTrackPointArray &arrUdist, | |
229 | AliTrackPointArray &arrDist) | |
230 | { | |
231 | // | |
232 | // sample the track from the inner to the outer wall of the TPC | |
233 | // a graph is filled in local coordinates for later | |
234 | // | |
235 | ||
0403120d | 236 | Double_t kMaxSnp = 0.85; |
237 | if (fIsLaser) kMaxSnp=0.99; | |
32438f4e | 238 | const Double_t kMaxZ0 = fTPCParam->GetZLength(); |
239 | const Double_t kMass = TDatabasePDG::Instance()->GetParticle("pi+")->Mass(); | |
240 | ||
241 | const Double_t iFCRadius = 83.5; //radius constants found in AliTPCCorrection.cxx | |
242 | const Double_t oFCRadius = 254.5; | |
e83fd282 | 243 | |
244 | const Float_t kSigmaY=0.1; | |
245 | const Float_t kSigmaZ=0.1; | |
32438f4e | 246 | |
0403120d | 247 | AliExternalTrackParam track(trackIn); |
32438f4e | 248 | //!!! TODO: make this adjustable perhaps |
249 | const Double_t stepSize=0.1; | |
250 | Double_t xyz[3] = {0.,0.,0.}; | |
251 | Float_t xyzf[3] = {0.,0.,0.}; | |
252 | ||
a1a695e5 | 253 | //!!! when does the propagation not work, how often does it happen? |
0403120d | 254 | if (!AliTrackerBase::PropagateTrackTo(&track,iFCRadius,kMass,5,kTRUE,kMaxSnp,0,kFALSE,fUseMaterialBudget) && !fIsLaser) { |
b0c26b55 | 255 | AliError(Form("Propagation to IFC: %.2f failed\n",iFCRadius)); |
32438f4e | 256 | return; |
b0c26b55 | 257 | } |
32438f4e | 258 | |
526ddf0e | 259 | Int_t npoints=0; |
b0c26b55 | 260 | |
32438f4e | 261 | for (Double_t radius=iFCRadius; radius<oFCRadius; radius+=stepSize){ |
b0c26b55 | 262 | //!!! changed from return 0 to continue -> Please check |
d1cf83f5 | 263 | if (!AliTrackerBase::PropagateTrackTo(&track,radius,kMass,1,kTRUE,kMaxSnp,0,kFALSE,fUseMaterialBudget)) { |
0403120d | 264 | AliError(Form("Propagation to r=%.2f (snp=%.2f) failed\n",radius,track.GetSnp())); |
b0c26b55 | 265 | continue; |
266 | } | |
526ddf0e | 267 | track.GetXYZ(xyz); |
32438f4e | 268 | |
b0c26b55 | 269 | //!!! Why is this smeared |
32438f4e | 270 | |
271 | xyzf[0]=Float_t(xyz[0]); | |
272 | xyzf[1]=Float_t(xyz[1]); | |
273 | xyzf[2]=Float_t(xyz[2]); | |
274 | ||
526ddf0e | 275 | if (TMath::Abs(track.GetZ())>kMaxZ0) continue; |
32438f4e | 276 | // if (TMath::Abs(track.GetX())<iFCRadius) continue; |
277 | // if (TMath::Abs(track.GetX())>oFCRadius) continue; | |
278 | ||
279 | ||
280 | AliTrackPoint pUdist; // undistorted space point | |
281 | AliTrackPoint pDist; // distorted space point | |
282 | // Set undistorted point | |
e83fd282 | 283 | SetPoint(xyzf,kSigmaY,kSigmaZ,pUdist); |
32438f4e | 284 | arrUdist.AddPoint(npoints, &pUdist); |
285 | Int_t sector=pUdist.GetVolumeID(); | |
32438f4e | 286 | |
287 | // set distorted point | |
526ddf0e | 288 | Float_t distPoint[3]={xyz[0],xyz[1],xyz[2]}; |
d92b8630 | 289 | Float_t dxyz[3]={0.,0.,0.}; |
290 | if (!fUseStepCorrection){ | |
223d9e38 | 291 | fTPCCorrection->DistortPoint(distPoint, sector); |
d92b8630 | 292 | } else { |
223d9e38 | 293 | fTPCCorrection->GetCorrectionIntegralDz(distPoint,sector,dxyz,5); |
d92b8630 | 294 | distPoint[0]-=dxyz[0]; |
295 | distPoint[1]-=dxyz[1]; | |
296 | distPoint[2]-=dxyz[2]; | |
297 | } | |
e83fd282 | 298 | SetPoint(distPoint,kSigmaY,kSigmaZ,pDist); |
32438f4e | 299 | arrDist.AddPoint(npoints, &pDist); |
32438f4e | 300 | |
301 | ++npoints; | |
526ddf0e | 302 | } |
32438f4e | 303 | |
304 | arrUdist.SetUniqueID(npoints); | |
305 | arrDist.SetUniqueID(npoints); | |
306 | } | |
526ddf0e | 307 | |
32438f4e | 308 | //________________________________________________________________ |
e83fd282 | 309 | void AliToyMCEventGenerator::SetPoint(Float_t xyz[3], Float_t sigmaY, Float_t sigmaZ, AliTrackPoint &point) |
32438f4e | 310 | { |
311 | // | |
312 | // make AliTrackPoint out of AliTPCclusterMI | |
313 | // | |
314 | ||
315 | //covariance at the local frame | |
316 | //assume 1mm distortion in y and z | |
317 | Int_t i[3]={0,0,0}; | |
e83fd282 | 318 | Float_t cov[6]={0,0,0, sigmaY*sigmaY,0,sigmaZ*sigmaZ}; |
32438f4e | 319 | |
320 | const Float_t alpha = -TMath::ATan2(xyz[1],xyz[0]); | |
321 | const Float_t sin = TMath::Sin(alpha), cos = TMath::Cos(alpha); | |
322 | ||
323 | Float_t newcov[6]; | |
324 | newcov[0] = cov[0]*cos*cos + 2*cov[1]*sin*cos + cov[3]*sin*sin; | |
325 | newcov[1] = cov[1]*(cos*cos-sin*sin) + (cov[3]-cov[0])*sin*cos; | |
326 | newcov[2] = cov[2]*cos + cov[4]*sin; | |
327 | newcov[3] = cov[0]*sin*sin - 2*cov[1]*sin*cos + cov[3]*cos*cos; | |
328 | newcov[4] = cov[4]*cos - cov[2]*sin; | |
329 | newcov[5] = cov[5]; | |
330 | ||
331 | // voluem ID to add later .... | |
332 | point.SetXYZ(xyz); | |
333 | point.SetCov(newcov); | |
d92b8630 | 334 | // abuse volume ID for the sector number |
32438f4e | 335 | point.SetVolumeID(fTPCParam->Transform0to1(xyz,i)); |
b0c26b55 | 336 | |
32438f4e | 337 | // TODO: Add sampled dE/dx (use SetCharge) |
338 | } | |
b0c26b55 | 339 | |
32438f4e | 340 | //________________________________________________________________ |
341 | void AliToyMCEventGenerator::ConvertTrackPointsToLocalClusters(AliTrackPointArray &arrPoints, | |
342 | AliToyMCTrack &tr, Double_t t0, Int_t type) | |
343 | { | |
344 | // | |
345 | // | |
346 | // | |
526ddf0e | 347 | |
32438f4e | 348 | const Int_t npoints=Int_t(arrPoints.GetUniqueID()); |
349 | Int_t secOld=-1; | |
350 | ||
351 | // create an array for graphs which are used for local interpolation | |
352 | // we need a new graph if the sector changed since then the local frame will also change | |
353 | TObjArray arrGraphsXY(72); | |
354 | arrGraphsXY.SetOwner(); | |
355 | TObjArray arrGraphsXZ(72); | |
356 | arrGraphsXZ.SetOwner(); | |
357 | AliTrackPoint p; | |
358 | //create initial graph | |
359 | TGraph *grXY=0x0; | |
360 | TGraph *grXZ=0x0; | |
361 | //row -> sector mapping | |
362 | Int_t rowMap[159]; | |
363 | for (Int_t irow=0; irow<159; ++irow) rowMap[irow]=-1; | |
364 | ||
365 | // 1. Step | |
366 | // Make from the list of global space points graphs in the local frame | |
367 | // one graph per sector is needed | |
368 | for (Int_t ipoint=0; ipoint<npoints; ++ipoint){ | |
369 | arrPoints.GetPoint(p,ipoint); | |
370 | Float_t xyz[3] = {p.GetX(),p.GetY(),p.GetZ()}; | |
371 | Int_t index[3] = {0,0,0}; | |
372 | Int_t row = fTPCParam->GetPadRow(xyz,index); | |
373 | // rotate space point to local frame | |
374 | // the angle is given by the VolumeID which was set in CrateSpacePoints | |
375 | const Int_t sec=p.GetVolumeID(); | |
376 | if (row<0 || (sec<36 && row>62) || row>95 ) continue; | |
377 | Double_t angle=((sec%18)*20.+10.)/TMath::RadToDeg(); | |
378 | AliTrackPoint pRot=p.Rotate(angle); | |
379 | const Int_t secrow=row+(sec>35)*63; | |
380 | if (rowMap[secrow]==-1) rowMap[secrow]=sec; | |
381 | // check if we need a new graph (sector change) | |
382 | if (secOld!=sec){ | |
383 | grXY=new TGraph; | |
384 | grXZ=new TGraph; | |
385 | arrGraphsXY.AddAt(grXY,sec); | |
386 | arrGraphsXZ.AddAt(grXZ,sec); | |
387 | } | |
b0c26b55 | 388 | |
32438f4e | 389 | //add coordinates in local frame for later interpolation |
390 | grXY->SetPoint(grXY->GetN(), pRot.GetX(), pRot.GetY()); | |
391 | grXZ->SetPoint(grXZ->GetN(), pRot.GetX(), pRot.GetZ()); | |
392 | secOld=sec; | |
393 | } | |
b0c26b55 | 394 | |
32438f4e | 395 | // 2. Step |
396 | // create in the center of each row a space point by using the graph to interpolate | |
397 | // the the center of the row. This is done in xy and xz | |
398 | TSpline3 *splXY=0x0; | |
399 | TSpline3 *splXZ=0x0; | |
400 | AliTPCclusterMI tempCl; | |
401 | secOld=-1; | |
402 | for (Int_t irow=0; irow<159; ++irow ){ | |
403 | const Int_t sec = rowMap[irow]; | |
404 | if (sec==-1) continue; | |
405 | const Int_t secrow = irow<63?irow:irow-63; | |
406 | Double_t localX = fTPCParam->GetPadRowRadii(sec,secrow); | |
407 | // get graph for the current row | |
408 | if (sec!=secOld){ | |
409 | delete splXY; | |
410 | splXY=0x0; | |
411 | delete splXZ; | |
412 | splXZ=0x0; | |
413 | ||
414 | grXY=(TGraph*)arrGraphsXY.At(sec); | |
415 | grXZ=(TGraph*)arrGraphsXZ.At(sec); | |
416 | if (!grXY) continue; | |
b0c26b55 | 417 | |
05da1b4e | 418 | // if(grXY->GetN()>1 && grXZ->GetN()>1) { //causes segmentation violation if N==1 |
419 | // splXY=new TSpline3("splXY",grXY); | |
420 | // splXZ=new TSpline3("splXZ",grXZ); | |
421 | // } | |
422 | // else { | |
544076ea | 423 | //TODO: make a cluster also in the sector w only one space point? |
05da1b4e | 424 | // continue; |
544076ea | 425 | // Double_t tempX=0., tempY = 0., tempZ = 0.; |
426 | ||
427 | // grXY->GetPoint(0,tempX,localY); | |
428 | // grXZ->GetPoint(0,tempX,localZ); | |
05da1b4e | 429 | // } |
544076ea | 430 | |
32438f4e | 431 | } |
432 | secOld=sec; | |
b0c26b55 | 433 | |
32438f4e | 434 | // check we are in an active area |
05da1b4e | 435 | // if (splXY->FindX(localX)<1 || splXZ->FindX(localX)<1) continue; |
436 | if ( localX<grXY->GetX()[0] || localX>grXY->GetX()[grXY->GetN()-1] || localX<grXZ->GetX()[0] || localX>grXZ->GetX()[grXZ->GetN()-1]) continue; | |
b0c26b55 | 437 | |
32438f4e | 438 | //get interpolated value at the center for the pad row |
439 | // using splines | |
05da1b4e | 440 | // const Double_t localY=splXY->Eval(localX/*,0x0,"S"*/); |
441 | // const Double_t localZ=splXZ->Eval(localX/*,0x0,"S"*/); | |
442 | const Double_t localY=grXY->Eval(localX/*,0x0,"S"*/); | |
443 | const Double_t localZ=grXZ->Eval(localX/*,0x0,"S"*/); | |
32438f4e | 444 | Float_t xyz[3]={localX,localY,localZ}; |
526ddf0e | 445 | |
32438f4e | 446 | if (!SetupCluster(tempCl,xyz,sec,t0)) continue; |
d1cf83f5 | 447 | tempCl.SetLabel(tr.GetUniqueID(), 0); |
0403120d | 448 | |
32438f4e | 449 | if (type==0) tr.AddSpacePoint(tempCl); |
450 | else tr.AddDistortedSpacePoint(tempCl); | |
451 | // printf("SetupCluster %3d: (%.2f, %.2f, %.2f), %d, %.2f\n",irow,xyz[0],xyz[1],xyz[2],sec,t0); | |
452 | } | |
526ddf0e | 453 | |
32438f4e | 454 | delete splXY; |
455 | splXY=0x0; | |
456 | delete splXZ; | |
457 | splXZ=0x0; | |
458 | ||
459 | } | |
526ddf0e | 460 | |
32438f4e | 461 | //________________________________________________________________ |
462 | Bool_t AliToyMCEventGenerator::SetupCluster(AliTPCclusterMI &tempCl, Float_t xyz[3], Int_t sec, Double_t t0) | |
463 | { | |
464 | // | |
465 | // | |
466 | // | |
526ddf0e | 467 | |
e83fd282 | 468 | // intrinsic cluster resolution is 1mm |
32438f4e | 469 | const Double_t kSigmaY = 0.1; |
470 | const Double_t kSigmaZ = 0.1; | |
471 | const Double_t kMaxZ0 = fTPCParam->GetZLength(); | |
472 | //TODO: Get this from the OCDB at some point? | |
473 | const Double_t kDriftVel = fTPCParam->GetDriftV(); | |
e83fd282 | 474 | |
475 | // smear the ideal positions with the cluster resolution | |
476 | xyz[1]+=gRandom->Gaus(0,kSigmaY); | |
477 | xyz[2]+=gRandom->Gaus(0,kSigmaZ); | |
526ddf0e | 478 | |
32438f4e | 479 | tempCl.SetX(xyz[0]); |
480 | tempCl.SetY(xyz[1]); | |
481 | tempCl.SetZ(xyz[2]); | |
526ddf0e | 482 | |
32438f4e | 483 | tempCl.SetSigmaY2(kSigmaY*kSigmaY); |
484 | tempCl.SetSigmaZ2(kSigmaZ*kSigmaZ); | |
485 | ||
486 | // transform from the local coordinates to the coordinates expressed in pad coordinates | |
487 | Int_t index[3] = {0,sec,0}; | |
488 | fTPCParam->Transform2to3(xyz,index); | |
489 | fTPCParam->Transform3to4(xyz,index); | |
490 | fTPCParam->Transform4to8(xyz,index); | |
491 | ||
492 | const Int_t row = index[2]; | |
493 | const Int_t nPads = fTPCParam->GetNPads(sec, row); | |
494 | // pad is fractional, but it needs to be shifted from the center | |
495 | // to the edge of the row | |
496 | const Float_t pad = xyz[1] + nPads/2; | |
497 | ||
498 | tempCl.SetRow(row); | |
499 | tempCl.SetPad(pad); | |
500 | Float_t timeBin=Float_t(t0 + (kMaxZ0-TMath::Abs(tempCl.GetZ()))/kDriftVel); | |
501 | tempCl.SetTimeBin(timeBin); // set time as t0 + drift time from dist z | |
502 | tempCl.SetDetector(sec); | |
503 | ||
504 | //check if we are in the active area | |
505 | if (pad<0 || pad>=nPads) return kFALSE; | |
506 | ||
507 | return kTRUE; | |
526ddf0e | 508 | } |
32438f4e | 509 | |
a1a695e5 | 510 | //________________________________________________________________ |
511 | Bool_t AliToyMCEventGenerator::ConnectOutputFile() | |
512 | { | |
513 | // | |
514 | // Create the output file name and tree and connect the event | |
515 | // | |
516 | ||
517 | fOutFile = new TFile(fOutputFileName.Data(),"recreate"); | |
518 | ||
519 | if (!fOutFile || !fOutFile->IsOpen()){ | |
520 | delete fOutFile; | |
521 | fOutFile=0x0; | |
522 | return kFALSE; | |
523 | } | |
524 | ||
525 | fOutTree = new TTree("toyMCtree","Tree with toyMC simulation"); | |
526 | fOutTree->Branch("event","AliToyMCEvent",&fEvent); | |
527 | ||
0403120d | 528 | gROOT->cd(); |
529 | ||
a1a695e5 | 530 | return kTRUE; |
531 | } | |
532 | ||
533 | //________________________________________________________________ | |
534 | Bool_t AliToyMCEventGenerator::CloseOutputFile() | |
535 | { | |
536 | // | |
537 | // close the output file | |
538 | // | |
539 | if (!fOutFile) return kFALSE; | |
540 | fOutFile->Write(); | |
541 | fOutFile->Close(); | |
542 | delete fOutFile; | |
543 | fOutFile=0x0; | |
544 | ||
545 | return kTRUE; | |
546 | } | |
547 | ||
548 | //________________________________________________________________ | |
549 | void AliToyMCEventGenerator::FillTree() | |
550 | { | |
551 | // fill the tree | |
0403120d | 552 | if (fOutTree&&fEvent) fOutTree->Fill(); |
a1a695e5 | 553 | } |
554 | ||
cd8ed0ac | 555 | //________________________________________________________________ |
223d9e38 | 556 | void AliToyMCEventGenerator::SetSpaceCharge(EEpsilon epsilon, EGasType gasType/*=kNeCO2_9010*/, |
557 | ECollRate collRate/*=k50kHz*/, ECorrection corrType/*=kLookup*/) | |
cd8ed0ac | 558 | { |
559 | // | |
560 | // Set the space charge conditions | |
561 | // | |
223d9e38 | 562 | fCorrectionFile="$ALICE_ROOT/TPC/Calib/maps/SC"; |
cd8ed0ac | 563 | switch (gasType) { |
564 | case kNeCO2_9010: | |
223d9e38 | 565 | fCorrectionFile.Append("_NeCO2"); |
cd8ed0ac | 566 | break; |
d5715c32 | 567 | case kNeCO2N2_90105: |
568 | fCorrectionFile.Append("_NeCO2N2"); | |
569 | break; | |
cd8ed0ac | 570 | } |
571 | switch (epsilon) { | |
572 | case kEps5: | |
223d9e38 | 573 | fCorrectionFile.Append("_eps5"); |
cd8ed0ac | 574 | break; |
575 | case kEps10: | |
223d9e38 | 576 | fCorrectionFile.Append("_eps10"); |
cd8ed0ac | 577 | break; |
578 | case kEps20: | |
223d9e38 | 579 | fCorrectionFile.Append("_eps20"); |
cd8ed0ac | 580 | break; |
d5715c32 | 581 | case kEps25: |
582 | fCorrectionFile.Append("_eps25"); | |
583 | break; | |
584 | case kEps30: | |
585 | fCorrectionFile.Append("_eps30"); | |
586 | break; | |
587 | case kEps35: | |
588 | fCorrectionFile.Append("_eps35"); | |
589 | break; | |
590 | case kEps40: | |
591 | fCorrectionFile.Append("_eps40"); | |
592 | break; | |
cd8ed0ac | 593 | } |
594 | switch (collRate) { | |
595 | case k50kHz: | |
223d9e38 | 596 | fCorrectionFile.Append("_50kHz"); |
597 | break; | |
598 | } | |
599 | switch (corrType) { | |
600 | case kLookup: | |
601 | fCorrectionFile.Append("_precal.lookup.root"); | |
602 | break; | |
603 | case kSpaceChargeFile: | |
604 | fCorrectionFile.Append("_precal.root"); | |
cd8ed0ac | 605 | break; |
606 | } | |
cd8ed0ac | 607 | } |
608 | ||
609 | //________________________________________________________________ | |
610 | void AliToyMCEventGenerator::InitSpaceCharge() | |
611 | { | |
612 | // | |
613 | // init the space charge conditions | |
614 | // this should be called after the tree was connected | |
615 | // | |
616 | ||
2dd02504 | 617 | if (HasSCList()) { |
618 | InitSpaceChargeList(); | |
619 | return; | |
620 | } | |
621 | ||
223d9e38 | 622 | AliInfo(Form("Using space charge map file: '%s'",fCorrectionFile.Data())); |
623 | ||
624 | TString corrName("map"); | |
625 | ||
626 | // allow for specifying an object name for the AliTPCCorrection in the file name | |
627 | // separated by a ':' | |
628 | TObjArray *arr=fCorrectionFile.Tokenize(":"); | |
629 | if (arr->GetEntriesFast()>1) { | |
630 | fCorrectionFile=arr->At(0)->GetName(); | |
631 | corrName=arr->At(1)->GetName(); | |
632 | } | |
633 | delete arr; | |
634 | ||
cd8ed0ac | 635 | |
223d9e38 | 636 | TFile f(fCorrectionFile.Data()); |
637 | fTPCCorrection=(AliTPCSpaceCharge3D*)f.Get("map"); | |
cd8ed0ac | 638 | |
639 | if (fOutTree){ | |
640 | AliInfo("Attaching space charge map file name to the tree"); | |
223d9e38 | 641 | fOutTree->GetUserInfo()->Add(new TObjString(fCorrectionFile.Data())); |
cd8ed0ac | 642 | } |
643 | } | |
2dd02504 | 644 | |
645 | //________________________________________________________________ | |
646 | void AliToyMCEventGenerator::InitSpaceChargeList() | |
647 | { | |
648 | // | |
649 | // init space charge conditions from a list of files | |
650 | // this should be called after the tree was connected | |
651 | // | |
652 | ||
653 | std::ifstream file(fSCListFile.Data()); | |
654 | TString list; | |
655 | list.ReadFile(file); | |
656 | ||
657 | TObjArray *arr=list.Tokenize("\n"); | |
658 | if (!arr->GetEntriesFast()) { | |
659 | delete arr; | |
660 | AliFatal(Form("No SC file initialised. SC list '%s' seems empty",fSCListFile.Data())); | |
661 | return; | |
662 | } | |
663 | ||
664 | // it is assumed that in case of an input list | |
665 | // fCorrectionFile contains the name of the average correction | |
666 | // to be then used in the reconstruction | |
667 | if (fOutTree){ | |
668 | if (fCorrectionFile.IsNull()) { | |
669 | AliFatal("List of SC files set, but no average map is specified. Use 'SetSpaceChargeFile' to do so"); | |
670 | return; | |
671 | } | |
672 | AliInfo("Attaching average space charge map file name to the tree"); | |
673 | fOutTree->GetUserInfo()->Add(new TObjString(fCorrectionFile.Data())); | |
674 | } | |
675 | ||
676 | ||
677 | // case of non preread | |
678 | // store the names of the files | |
679 | if (!fPrereadSCList) { | |
680 | if (fSCList) delete fSCList; | |
681 | fSCList=arr; | |
682 | return; | |
683 | } | |
684 | ||
685 | // case of preread | |
686 | // load all SC files and set them to the list | |
687 | if (!fSCList) fSCList=new TObjArray; | |
688 | fSCList->SetOwner(); | |
689 | fSCList->Delete(); | |
690 | ||
691 | for (Int_t ifile=0; ifile<arr->GetEntriesFast(); ++ifile) { | |
692 | TFile f(arr->At(ifile)->GetName()); | |
693 | if (!f.IsOpen()||f.IsZombie()) continue; | |
694 | AliTPCSpaceCharge3D *sc=(AliTPCSpaceCharge3D*)f.Get("map"); | |
695 | if (!sc) continue; | |
696 | sc->SetName(f.GetName()); | |
697 | fSCList->Add(sc); | |
698 | } | |
699 | } | |
700 | ||
701 | //________________________________________________________________ | |
702 | void AliToyMCEventGenerator::IterateSC(Int_t ipos) | |
703 | { | |
704 | // | |
705 | // In case a list of SC files is set iterate over them | |
706 | // | |
707 | ||
708 | if (!HasSCList()) return; | |
709 | ||
710 | if (ipos<0) { | |
711 | if (fOutTree) ipos=fOutTree->GetEntries(); | |
712 | else ipos=0; | |
713 | } | |
714 | ||
715 | TObject *sc=fSCList->At(ipos%fSCList->GetEntriesFast()); | |
716 | AliInfo(Form("Event: %d - SC: %s",ipos,sc->GetName())); | |
717 | // case SC files have been preread | |
718 | if (fPrereadSCList) { | |
719 | fTPCCorrection=(AliTPCCorrection*)sc; | |
720 | return; | |
721 | } | |
722 | ||
723 | // case no preread was done | |
724 | TString &file=((TObjString*)sc)->String(); | |
725 | delete fTPCCorrection; | |
726 | fTPCCorrection=0x0; | |
727 | ||
728 | TFile f(file); | |
729 | if (!f.IsOpen()||f.IsZombie()) { | |
730 | AliFatal(Form("Could not open SC file '%s'",file.Data())); | |
731 | return; | |
732 | } | |
733 | ||
734 | fTPCCorrection=(AliTPCSpaceCharge3D*)f.Get("map"); | |
735 | if (!fTPCCorrection) { | |
736 | AliFatal(Form("Could not read SC map from SC file '%s'",file.Data())); | |
737 | return; | |
738 | } | |
739 | ||
740 | } |