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 Revision 1.28.6.2 2002/07/24 10:08:13 alibrary
21 Revision 1.28.6.1 2002/06/10 14:43:06 hristov
24 Revision 1.28 2001/10/21 18:38:44 hristov
25 Several pointers were set to zero in the default constructors to avoid memory management problems
27 Revision 1.27 2001/07/20 09:32:18 morsch
28 Protection against uncomplete backward stepping in dumping added.
30 Revision 1.26 2001/05/30 12:18:13 morsch
31 Fastidious printf commented.
33 Revision 1.25 2001/05/23 11:59:46 morsch
34 Use RemoveAt method instead of delete to remove objects from TClonesArray.
36 Revision 1.24 2001/05/21 08:39:13 morsch
37 Use fStepBack = 1 only in debug mode.
39 Revision 1.23 2001/05/20 10:10:39 morsch
40 - Debug output at the beginning of new event and end of run.
41 - Filter out boundary loops.
43 Revision 1.22 2001/05/11 13:22:40 morsch
44 If run with debug option (from gAlice) geantinos are sent back and volume sequence forward/backward is compared.
45 Can be very verbous in some cases.
47 Revision 1.21 2000/12/15 10:33:59 morsch
48 Invert coordinates to make meaningful zylindrical plots.
50 Revision 1.20 2000/11/30 07:12:48 alibrary
51 Introducing new Rndm and QA classes
53 Revision 1.19 2000/10/26 14:13:05 morsch
54 - Change from coordinates theta, phi to general coordinates Coor1 and Coor2.
55 - Lego generator instance can be passed in constructor.
57 Revision 1.18 2000/10/02 21:28:14 fca
58 Removal of useless dependecies via forward declarations
60 Revision 1.17 2000/07/12 08:56:25 fca
61 Coding convention correction and warning removal
63 Revision 1.16 2000/05/26 08:35:03 fca
64 Move the check on z after z has been retrieved
66 Revision 1.15 2000/05/16 13:10:40 fca
67 New method IsNewTrack and fix for a problem in Father-Daughter relations
69 Revision 1.14 2000/04/27 10:38:21 fca
70 Correct termination of Lego Run and introduce Lego getter in AliRun
72 Revision 1.13 2000/04/26 10:17:31 fca
73 Changes in Lego for G4 compatibility
75 Revision 1.12 2000/04/07 11:12:33 fca
76 G4 compatibility changes
78 Revision 1.11 2000/03/22 13:42:26 fca
79 SetGenerator does not replace an existing generator, ResetGenerator does
81 Revision 1.10 2000/02/23 16:25:22 fca
82 AliVMC and AliGeant3 classes introduced
83 ReadEuclid moved from AliRun to AliModule
85 Revision 1.9 1999/12/03 10:54:01 fca
88 Revision 1.8 1999/10/01 09:54:33 fca
89 Correct logics for Lego StepManager
91 Revision 1.7 1999/09/29 09:24:29 fca
92 Introduction of the Copyright and cvs Log
96 //////////////////////////////////////////////////////////////
97 //////////////////////////////////////////////////////////////
99 // Utility class to evaluate the material budget from
100 // a given radius to the surface of an arbitrary cylinder
101 // along radial directions from the centre:
103 // - radiation length
104 // - Interaction length
107 // Geantinos are shot in the bins in the fNtheta bins in theta
108 // and fNphi bins in phi with specified rectangular limits.
109 // The statistics are accumulated per
110 // fRadMin < r < fRadMax and <0 < z < fZMax
112 // To activate this option, you can do:
113 // Root > gAlice.RunLego();
114 // or Root > .x menu.C then select menu item "RunLego"
115 // Note that when calling gAlice->RunLego, an optional list
116 // of arguments may be specified.
120 <img src="picts/alilego.gif">
124 //////////////////////////////////////////////////////////////
130 #include "AliDebugVolume.h"
132 #include "AliLegoGenerator.h"
133 #include "AliConst.h"
137 #include "TClonesArray.h"
142 //___________________________________________
146 // Default constructor
157 //___________________________________________
158 AliLego::AliLego(const char *title, Int_t ntheta, Float_t thetamin,
159 Float_t thetamax, Int_t nphi, Float_t phimin, Float_t phimax,
160 Float_t rmin, Float_t rmax, Float_t zmax)
161 : TNamed("Lego Generator",title)
164 // specify the angular limits and the size of the rectangular box
166 fGener = new AliLegoGenerator(ntheta, thetamin, thetamax,
167 nphi, phimin, phimax, rmin, rmax, zmax);
171 fHistRadl = new TH2F("hradl","Radiation length map",
172 ntheta,thetamin,thetamax,nphi,phimin,phimax);
173 fHistAbso = new TH2F("habso","Interaction length map",
174 ntheta,thetamin,thetamax,nphi,phimin,phimax);
175 fHistGcm2 = new TH2F("hgcm2","g/cm2 length map",
176 ntheta,thetamin,thetamax,nphi,phimin,phimax);
182 fVolumesFwd = new TClonesArray("AliDebugVolume",1000);
183 fVolumesBwd = new TClonesArray("AliDebugVolume",1000);
184 fDebug = gAlice->GetDebug();
188 AliLego::AliLego(const char *title, AliLegoGenerator* generator)
189 : TNamed("Lego Generator",title)
192 // specify the angular limits and the size of the rectangular box
195 Float_t c1min, c1max, c2min, c2max;
196 Int_t n1 = fGener->NCoor1();
197 Int_t n2 = fGener->NCoor2();
199 fGener->Coor1Range(c1min, c1max);
200 fGener->Coor2Range(c2min, c2max);
202 fHistRadl = new TH2F("hradl","Radiation length map",
203 n2, c2min, c2max, n1, c1min, c1max);
204 fHistAbso = new TH2F("habso","Interaction length map",
205 n2, c2min, c2max, n1, c1min, c1max);
206 fHistGcm2 = new TH2F("hgcm2","g/cm2 length map",
207 n2, c2min, c2max, n1, c1min, c1max);
214 fVolumesFwd = new TClonesArray("AliDebugVolume",1000);
215 fVolumesBwd = new TClonesArray("AliDebugVolume",1000);
216 fDebug = gAlice->GetDebug();
220 //___________________________________________
230 if (fVolumesFwd) delete fVolumesFwd;
231 if (fVolumesBwd) delete fVolumesBwd;
234 //___________________________________________
235 void AliLego::BeginEvent()
238 // --- Set to 0 radiation length, absorption length and g/cm2 ---
245 if (fErrorCondition) DumpVolumes();
246 fVolumesFwd->Delete();
247 fVolumesBwd->Delete();
251 if (gAlice->CurrentTrack() == 0) fStepBack = 0;
255 //___________________________________________
256 void AliLego::FinishEvent()
259 // Finish the event and update the histos
262 c1 = fGener->CurCoor1();
263 c2 = fGener->CurCoor2();
264 fHistRadl->Fill(c2,c1,fTotRadl);
265 fHistAbso->Fill(c2,c1,fTotAbso);
266 fHistGcm2->Fill(c2,c1,fTotGcm2);
269 //___________________________________________
270 void AliLego::FinishRun()
273 // Store histograms in current Root file
279 // Delete histograms from memory
280 fHistRadl->Delete(); fHistRadl=0;
281 fHistAbso->Delete(); fHistAbso=0;
282 fHistGcm2->Delete(); fHistGcm2=0;
284 if (fErrorCondition) DumpVolumes();
287 //___________________________________________
288 void AliLego::Copy(AliLego &lego) const
291 // Copy *this onto lego -- not implemented
293 Fatal("Copy","Not implemented!\n");
296 //___________________________________________
297 void AliLego::StepManager() {
298 // called from AliRun::Stepmanager from gustep.
299 // Accumulate the 3 parameters step by step
302 Float_t a,z,dens,radl,absl;
305 static Float_t vect[3], dir[3];
309 id = gMC->CurrentVolID(copy);
310 vol = gMC->VolName(id);
311 Float_t step = gMC->TrackStep();
313 TLorentzVector pos, mom;
314 gMC->TrackPosition(pos);
315 gMC->TrackMomentum(mom);
318 if (gMC->IsTrackEntering()) status = 1;
319 if (gMC->IsTrackExiting()) status = 2;
325 // printf("\n volume %s %d", vol, status);
327 // Normal Forward stepping
330 // printf("\n steps fwd %d %s %d %f", fStepsForward, vol, fErrorCondition, step);
333 // store volume if different from previous
336 TClonesArray &lvols = *fVolumesFwd;
337 if (fStepsForward > 0) {
338 AliDebugVolume* tmp = (AliDebugVolume*) (*fVolumesFwd)[fStepsForward-1];
339 if (tmp->IsEqual(vol, copy) && gMC->IsTrackEntering()) {
341 fVolumesFwd->RemoveAt(fStepsForward);
342 fVolumesFwd->RemoveAt(fStepsForward+1);
346 new(lvols[fStepsForward++])
347 AliDebugVolume(vol,copy,step,pos[0], pos[1], pos[2], status);
351 // Get current material properties
353 gMC->CurrentMaterial(a,z,dens,radl,absl);
357 // --- See if we have to stop now
358 if (TMath::Abs(pos[2]) > fGener->ZMax() ||
359 pos[0]*pos[0] +pos[1]*pos[1] > fGener->RadMax()*fGener->RadMax()) {
360 if (!gMC->IsNewTrack()) {
361 // Not the first step, add past contribution
367 // generate "mirror" particle flying back
369 fStepsBackward = fStepsForward;
371 Float_t pmom[3], orig[3];
372 Float_t polar[3] = {0.,0.,0.};
381 gAlice->SetTrack(1, gAlice->CurrentTrack(),
382 0, pmom, orig, polar, 0., kPNoProcess, ntr);
385 } // not a new track !
387 if (fDebug) fStepBack = 1;
390 } // outside scoring region ?
392 // --- See how long we have to go
398 t = fGener->PropagateCylinder(vect,dir,fGener->RadMax(),fGener->ZMax());
402 fTotAbso += step/absl;
403 fTotRadl += step/radl;
404 fTotGcm2 += step*dens;
411 // Geometry debugging
412 // Fly back and compare volume sequence
414 TClonesArray &lvols = *fVolumesBwd;
415 if (fStepsBackward < fStepsForward) {
416 AliDebugVolume* tmp = (AliDebugVolume*) (*fVolumesBwd)[fStepsBackward];
417 if (tmp->IsEqual(vol, copy) && gMC->IsTrackEntering()) {
419 fVolumesBwd->RemoveAt(fStepsBackward-1);
420 fVolumesBwd->RemoveAt(fStepsBackward-2);
425 // printf("\n steps %d %s %d", fStepsBackward, vol, fErrorCondition);
426 if (fStepsBackward < 0) {
432 new(lvols[fStepsBackward]) AliDebugVolume(vol,copy,step,pos[0], pos[1], pos[2], status);
434 AliDebugVolume* tmp = (AliDebugVolume*) (*fVolumesFwd)[fStepsBackward];
435 if (! (tmp->IsEqual(vol, copy)) && (!fErrorCondition))
437 printf("\n Problem at (x,y,z): %d %f %f %f, volumes: %s %s step: %f\n",
438 fStepsBackward, pos[0], pos[1], pos[2], tmp->GetName(), vol, step);
445 void AliLego::DumpVolumes()
448 // Dump volume sequence in case of error
450 printf("\n Dumping Volume Sequence:");
451 printf("\n ==============================================");
453 for (Int_t i = fStepsForward-1; i>=0; i--)
455 AliDebugVolume* tmp1 = (AliDebugVolume*) (*fVolumesFwd)[i];
456 AliDebugVolume* tmp2 = (AliDebugVolume*) (*fVolumesBwd)[i];
458 printf("\n Volume Fwd: %3d: %5s (%3d) step: %12.5e (x,y,z) (%12.5e %12.5e %12.5e) status: %9s \n"
460 tmp1->GetName(), tmp1->CopyNumber(), tmp1->Step(),
461 tmp1->X(), tmp1->Y(), tmp1->Z(), tmp1->Status());
462 if (tmp2 && i>= fStepsBackward)
463 printf("\n Volume Bwd: %3d: %5s (%3d) step: %12.5e (x,y,z) (%12.5e %12.5e %12.5e) status: %9s \n"
465 tmp2->GetName(), tmp2->CopyNumber(), tmp2->Step(),
466 tmp2->X(), tmp2->Y(), tmp2->Z(), tmp2->Status());
468 printf("\n ............................................................................\n");
470 printf("\n ==============================================\n");