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 1.6 2001/02/09 20:06:26 nilsen
19 Fixed bug in distructor. Can't distroy fixxed length arrays. Thanks Peter.
21 Revision 1.5 2001/02/09 00:05:31 nilsen
22 Added fMajor/MinorVersion variables and made other changes to better make
23 use of the new code changes in AliITSgeom related classes.
25 Revision 1.4 2001/02/02 23:57:29 nilsen
26 Added include file that are no londer included in AliITSgeom.h
28 Revision 1.3 2001/01/30 09:23:13 hristov
29 Streamers removed (R.Brun)
31 Revision 1.2 2000/11/30 11:13:11 barbera
32 Added changes suggested by Federico Carminati on nov, 30, 2000
34 Revision 1.1 2000/10/07 15:46:29 barbera
35 Version 5 of the geometry with symmetric services
37 Revision 1.25 2000/10/05 20:50:00 nilsen
38 Now using root generated streamers.
40 Revision 1.14.4.12 2000/10/02 16:04:03 barbera
41 Forward declarations added
43 Revision 1.22 2000/07/10 16:07:19 fca
44 Release version of ITS code
46 Revision 1.14.4.4 2000/05/19 10:10:21 nilsen
47 fix for bug with HP and Sun unix + fix for event display in ITS-working branch
49 Revision 1.14.4.3 2000/03/04 23:46:38 nilsen
50 Fixed up the comments/documentation.
52 Revision 1.14.4.2 2000/03/02 21:53:02 nilsen
53 To make it compatable with the changes in AliRun/AliModule.
55 Revision 1.14.4.1 2000/01/12 19:03:33 nilsen
56 This is the version of the files after the merging done in December 1999.
57 See the ReadMe110100.txt file for details
59 Revision 1.14 1999/10/22 08:16:49 fca
60 Correct destructors, thanks to I.Hrivnacova
62 Revision 1.13 1999/10/06 10:15:19 fca
63 Correct bug in allocation of layer name and add destructor
65 Revision 1.12 1999/10/05 08:05:09 fca
66 Minor corrections for uninitialised variables.
68 Revision 1.11 1999/09/29 09:24:20 fca
69 Introduction of the Copyright and cvs Log
73 ///////////////////////////////////////////////////////////////////////////////
75 // Inner Traking System version 5 with symmetric services
76 // This class contains the base procedures for the Inner Tracking System
78 // Authors: R. Barbera, B. S. Nilsen.
80 // Created October 7 2000.
82 ///////////////////////////////////////////////////////////////////////////////
88 #include <TGeometry.h>
91 #include <TFile.h> // only required for Tracking function?
93 #include <TObjArray.h>
94 #include <TLorentzVector.h>
95 #include <TObjString.h>
96 #include <TClonesArray.h>
102 #include "../TGeant3/TGeant3.h"
103 #include "AliITShit.h"
104 #include "AliITSGeant3Geometry.h"
106 #include "AliITSv5symm.h"
107 #include "AliITSgeom.h"
108 #include "AliITSgeomSPD.h"
109 #include "AliITSgeomSDD.h"
110 #include "AliITSgeomSSD.h"
112 ClassImp(AliITSv5symm)
114 //_____________________________________________________________________________
115 AliITSv5symm::AliITSv5symm() {
116 ////////////////////////////////////////////////////////////////////////
117 // Standard default constructor for the ITS version 5.
118 ////////////////////////////////////////////////////////////////////////
124 fEuclidOut = kFALSE; // Don't write Euclide file
125 fGeomDetOut = kFALSE; // Don't write .det file
126 fGeomDetIn = kTRUE; // Read .det file
127 fGeomOldDetIn = kTRUE; // Read old formatted .det file
128 fMajorVersion = IsVersion();
130 for(i=0;i<60;i++) fRead[i] = '\0';
131 for(i=0;i<60;i++) fWrite[i] = '\0';
132 for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
134 //_____________________________________________________________________________
135 AliITSv5symm::AliITSv5symm(const char *name, const char *title) : AliITS(name, title){
136 /////////////////////////////////////////////////////////////////////////////
137 // Standard constructor for the ITS version 5 with symmetrical services.
138 /////////////////////////////////////////////////////////////////////////////
142 fIdName = new TString[fIdN];
149 fIdSens = new Int_t[fIdN];
150 for (i=0;i<fIdN;i++) fIdSens[i] = 0;
151 fEuclidOut = kFALSE; // Don't write Euclide file
152 fGeomDetOut = kFALSE; // Don't write .det file
153 fGeomDetIn = kTRUE; // Read .det file
154 fGeomOldDetIn = kTRUE; // Read old formatted .det file
155 fMajorVersion = IsVersion();
157 for(i=0;i<60;i++) fRead[i] = '\0';
158 for(i=0;i<60;i++) fWrite[i] = '\0';
160 fEuclidMaterial = "$ALICE_ROOT/Euclid/ITSgeometry_5symm.tme";
161 fEuclidGeometry = "$ALICE_ROOT/Euclid/ITSgeometry_5symm.euc";
162 strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_v5symm.det",60);
163 strncpy(fRead,fEuclidGeomDet,60);
164 strncpy(fWrite,fEuclidGeomDet,60);
166 //____________________________________________________________________________
167 AliITSv5symm::AliITSv5symm(const AliITSv5symm &source){
168 ////////////////////////////////////////////////////////////////////////
169 // Copy Constructor for ITS version 5.
170 ////////////////////////////////////////////////////////////////////////
171 if(&source == this) return;
172 Warning("Copy Constructor","Not allowed to copy AliITSv5symm");
175 //_____________________________________________________________________________
176 AliITSv5symm& AliITSv5symm::operator=(const AliITSv5symm &source){
177 ////////////////////////////////////////////////////////////////////////
178 // Assignment operator for the ITS version 5.
179 ////////////////////////////////////////////////////////////////////////
181 if(&source == this) return *this;
182 Warning("= operator","Not allowed to copy AliITSv5symm");
186 //_____________________________________________________________________________
187 AliITSv5symm::~AliITSv5symm() {
188 ////////////////////////////////////////////////////////////////////////
189 // Standard destructor for the ITS version 5.
190 ////////////////////////////////////////////////////////////////////////
192 //_____________________________________________________________________________
193 void AliITSv5symm::BuildGeometry(){
194 ////////////////////////////////////////////////////////////////////////
195 // Geometry builder for the ITS version 5.
196 ////////////////////////////////////////////////////////////////////////
198 // Build ITS TNODE geometry for event display using detailed geometry.
199 // This function builds a simple ITS geometry used by the ROOT macro
204 //const int kColorITSSPD=kRed;
205 //const int kColorITSSDD=kGreen;
206 const int kColorITSSSD=kBlue;
208 AliITSgeom *gm = this->GetITSgeom();
210 top=gAlice->GetGeometry()->GetNode("alice");
219 //TCanvas *c1 = new TCanvas("c1","ITS");
221 for(lay=1;lay<=2;lay++)
222 for(lad=1;lad<=gm->GetNladders(lay);lad++)
223 for(det=1;det<=gm->GetNdetectors(lay);det++){
225 box = new TBRIK ("ActiveSPD","Active volume of SPD","SPD SI DET",
228 cout << "EXCEPTION in box = new TBRIK" << endl;
231 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
232 gm->GetRotMatrix(lay,lad,det,rt);
233 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
234 for(i=0;i<9;i++) rtd[i] = rt[i];
236 rm = new TRotMatrix(name,name,rtd);
238 cout << "EXCEPTION in new TRotMatrix" << endl;
242 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
244 nd = new TNode("SPD"," ",box,xg[0],xg[1],xg[2],rm);
246 cout << "EXCEPTION in new TNode" << endl;
249 nd->SetLineColor(kColorITSSSD);
253 for(lay=3;lay<=3;lay++)
254 for(lad=1;lad<=gm->GetNladders(lay);lad++)
255 for(det=1;det<=gm->GetNdetectors(lay);det++){
257 box = new TBRIK ("ActiveSDD","Active volume of SDD","SDD SI DET",
260 cout << "EXCEPTION in box = new TBRIK" << endl;
263 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
264 gm->GetRotMatrix(lay,lad,det,rt);
265 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
266 for(i=0;i<9;i++) rtd[i] = rt[i];
268 rm = new TRotMatrix(name,name,rtd);
270 cout << "EXCEPTION in new TRotMatrix" << endl;
274 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
276 nd = new TNode("SDD"," ",box,xg[0],xg[1],xg[2],rm);
278 cout << "EXCEPTION in new TNode" << endl;
281 nd->SetLineColor(kColorITSSSD);
285 for(lay=4;lay<=4;lay++)
286 for(lad=1;lad<=gm->GetNladders(lay);lad++)
287 for(det=1;det<=gm->GetNdetectors(lay);det++){
289 box = new TBRIK ("ActiveSDD","Active volume of SDD","SDD SI DET",
292 cout << "EXCEPTION in box = new TBRIK" << endl;
295 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
296 gm->GetRotMatrix(lay,lad,det,rt);
297 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
298 for(i=0;i<9;i++) rtd[i] = rt[i];
300 rm = new TRotMatrix(name,name,rtd);
302 cout << "EXCEPTION in new TRotMatrix" << endl;
306 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
308 nd = new TNode("SDD"," ",box,xg[0],xg[1],xg[2],rm);
310 cout << "EXCEPTION in new TNode" << endl;
313 nd->SetLineColor(kColorITSSSD);
316 for(lay=5;lay<=5;lay++)
317 for(lad=1;lad<=gm->GetNladders(lay);lad++)
318 for(det=1;det<=gm->GetNdetectors(lay);det++){
320 box = new TBRIK ("ActiveSSD","Active volume of SSD","SSD SI DET",
323 cout << "EXCEPTION in box = new TBRIK" << endl;
326 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
327 gm->GetRotMatrix(lay,lad,det,rt);
328 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
329 for(i=0;i<9;i++) rtd[i] = rt[i];
331 rm = new TRotMatrix(name,name,rtd);
333 cout << "EXCEPTION in new TRotMatrix" << endl;
337 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
339 nd = new TNode("SSD"," ",box,xg[0],xg[1],xg[2],rm);
341 cout << "EXCEPTION in new TNode" << endl;
344 nd->SetLineColor(kColorITSSSD);
348 for(lay=6;lay<=6;lay++)
349 for(lad=1;lad<=gm->GetNladders(lay);lad++)
350 for(det=1;det<=gm->GetNdetectors(lay);det++){
352 box = new TBRIK ("ActiveSSD","Active volume of SSD","SSD SI DET",
355 cout << "EXCEPTION in box = new TBRIK" << endl;
359 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
360 gm->GetRotMatrix(lay,lad,det,rt);
361 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
362 for(i=0;i<9;i++) rtd[i] = rt[i];
364 rm = new TRotMatrix(name,name,rtd);
366 cout << "EXCEPTION in new TRotMatrix" << endl;
370 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
372 nd = new TNode("SSD"," ",box,xg[0],xg[1],xg[2],rm);
374 cout << "EXCEPTION in new TNode" << endl;
377 nd->SetLineColor(kColorITSSSD);
383 //_____________________________________________________________________________
384 void AliITSv5symm::CreateMaterials(){
385 ////////////////////////////////////////////////////////////////////////
386 // Read a file containing the materials for the ITS version 5.
387 ////////////////////////////////////////////////////////////////////////
390 filtmp = gSystem->ExpandPathName(fEuclidMaterial.Data());
392 FILE *file = fopen(filtmp,"r");
395 ReadEuclidMedia(filtmp);
397 Error("CreateMaterials"," THE MEDIA FILE %s DOES NOT EXIST !",filtmp);
401 //_____________________________________________________________________________
402 void AliITSv5symm::CreateGeometry(){
403 //////////////////////////////////////////////////////////////////////
404 // This is the geometry used for the ITS Pre-TDR and comes from an
405 // Euclid to Geant conversion. The only difference
406 // is in the details of the ITS supports. The detectors elements,
407 // detector numbering, and local and global reference frames are shown in
408 // the following figures.
411 <img src="picts/ITS/its1+2_convention_front_5.gif">
414 <font size=+2 color=red>
415 <p>This shows the front view of the SPDs.
418 <img src="picts/ITS/its1+2_convention_side_5.gif">
421 <font size=+2 color=red>
422 <p>This shows the perspective view of the SPDs.
424 <img src="picts/ITS/its1+2_tree.gif">
427 <font size=+2 color=red>
428 <p>This shows the geometry Tree for the SPDs.
433 <img src="picts/ITS/its3+4_convention_front_5.gif">
436 <font size=+2 color=red>
437 <p>This shows the front view of the SDDs.
440 <img src="picts/ITS/its3+4_convention_side_5.gif">
443 <font size=+2 color=red>
444 <p>This shows the perspective view of the SDDs.
446 <img src="picts/ITS/its3+4_tree.gif">
449 <font size=+2 color=red>
450 <p>This shows the geometry Tree for the SDDs.
455 <img src="picts/ITS/its5+6_convention_front_5.gif">
458 <font size=+2 color=red>
459 <p>This shows the front view of the SSDs.
462 <img src="picts/ITS/its5+6_convention_side_5.gif">
465 <font size=+2 color=red>
466 <p>This shows the perspective view of the SSDs.
469 <img src="picts/ITS/its5+6_tree.gif">
472 <font size=+2 color=red>
473 <p>This shows the geometry Tree for the SSDs.
478 <img src="picts/ITS/its_layer1-6_2.gif">
481 <font size=+2 color=red>
482 <p>This shows the front view of the whole ITS..
486 <img src="picts/ITS/its_layer1-6_1.gif">
489 <font size=+2 color=red>
490 <p>This shows the perspective view of the whole ITS..
494 <img src="picts/ITS/its1-6_tree.gif">
497 <font size=+2 color=red>
498 <p>This shows the geometry Tree for the whole ITS.
505 // Here are shown the details of the ITS support cones and services.
506 // First is a GEANT tree showing the organization of all of the volumes
507 // that make up the ITS supports and services.
510 <img src="picts/ITS/supports_tree.gif">
513 // What follows are a number of figures showing what these support
514 // structures look like.
518 <img src="picts/ITS/supports_3.gif">
521 <font size=+2 color=red>
522 <p>This shows the geometry of the supports for the Drift and Strip layers only.
526 <img src="picts/ITS/supports_2.gif">
529 <font size=+2 color=red>
530 <p>This shows the geometry of the supports for the Drift and Strip layers in front cut out.
534 <img src="picts/ITS/supports_1.gif">
537 <font size=+2 color=red>
538 <p>This shows the geometry of the supports for the Drift and Strip layers in a back cut out..
542 <img src="picts/ITS/suppssd.gif">
545 <font size=+2 color=red>
546 <p>This shows the geometry for the Strip layers supports.
550 <img src="picts/ITS/suppsdd.gif">
553 <font size=+2 color=red>
554 <p>This shows the geometry for the Drift layers supports.
560 // Read a file containing the geometry for the ITS version 5.
561 ////////////////////////////////////////////////////////////////////////
565 filtmp = gSystem->ExpandPathName(fEuclidGeometry.Data());
566 FILE *file = fopen(filtmp,"r");
570 printf("Ready to read Euclid geometry file\n");
571 ReadEuclid(fEuclidGeometry.Data(),topvol);
572 printf("Read in euclid geometries\n");
574 Error("CreateGeometry"," THE GEOM FILE %s DOES NOT EXIST !",
575 fEuclidGeometry.Data());
579 // Place the ITS ghost volume ITSV in its mother volume (ALIC) and make it
582 gMC->Gspos("ITSV",1,"ALIC",0,0,0,0,"ONLY");
584 // Outputs the geometry tree in the EUCLID/CAD format if requested to do so
587 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
588 } // end if (fEuclidOut)
589 cout << "finished with euclid geometrys" << endl;
591 //______________________________________________________________________
592 void AliITSv5symm::ReadOldGeometry(const char *filename){
593 // read in the file containing the transformations for the active
594 // volumes for the ITS version 5. This is expected to be in a file
595 // ending in .det. This geometry is kept in the AliITSgeom class.
600 filtmp = gSystem->ExpandPathName(filename);
601 size = strlen(filtmp);
602 if(size>4 && fGeomDetIn){
603 filtmp[size-3] = 'd'; // change from .euc to .det
604 filtmp[size-2] = 'e';
605 filtmp[size-1] = 't';
606 file = fopen(filtmp,"r");
607 if(file){ // if file exists use it to fill AliITSgeom structure.
609 fITSgeom = new AliITSgeom(filtmp);
610 fITSgeom->DefineShapes(3); // if fShape isn't defined define it.
611 // Now define the detector types/shapes.
612 fITSgeom->ReSetShape(kSPD,(TObject *) new AliITSgeomSPD300());
613 fITSgeom->ReSetShape(kSDD,(TObject *) new AliITSgeomSDD300());
614 fITSgeom->ReSetShape(kSSD,(TObject *) new AliITSgeomSSD());
617 // fill AliITSgeom structure from geant structure just filled above
622 //______________________________________________________________________
623 void AliITSv5symm::InitAliITSgeom(){
624 // Based on the geometry tree defined in Geant 3.21, this
625 // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
627 if(!(dynamic_cast<TGeant3*>(gMC))) {
628 Error("InitAliITSgeom",
629 "Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
632 cout << "Reading Geometry transformation directly from Geant 3." << endl;
633 const Int_t nlayers = 6;
634 const Int_t ndeep = 7;
635 Int_t itsGeomTreeNames[nlayers][ndeep],lnam[20],lnum[20];
636 Int_t nlad[nlayers],ndet[nlayers];
638 Float_t par[20],att[20];
639 Int_t npar,natt,idshape,imat,imed;
640 AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
641 Int_t mod,lay,lad,det,i,j,k;
642 char *names[nlayers][ndeep] = {
643 {"ALIC","ITSV","ITSD","IT12","I132","I186","ITS1"}, // lay=1
644 {"ALIC","ITSV","ITSD","IT12","I132","I131","ITS2"}, // lay=2
645 {"ALIC","ITSV","ITSD","IT34","I004","I302","ITS3"}, // lay=3
646 {"ALIC","ITSV","ITSD","IT34","I005","I402","ITS4"}, // lay=4
647 {"ALIC","ITSV","ITSD","IT56","I565","I562","ITS5"}, // lay=5
648 {"ALIC","ITSV","ITSD","IT56","I569","I566","ITS6"}};// lay=6
649 Int_t itsGeomTreeCopys[nlayers][ndeep] = {{1,1,1,1,10, 2,4}, // lay=1
650 {1,1,1,1,10, 4,4}, // lay=2
651 {1,1,1,1,14, 6,1}, // lay=3
652 {1,1,1,1,22, 8,1}, // lay=4
653 {1,1,1,1,34,23,1}, // lay=5
654 {1,1,1,1,38,26,1}};// lay=6
656 // Sorry, but this is not very pritty code. It should be replaced
657 // at some point with a version that can search through the geometry
659 cout << "Reading Geometry informaton from Geant3 common blocks" << endl;
660 for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
661 for(i=0;i<nlayers;i++)for(j=0;j<ndeep;j++)
662 itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
664 for(i=0;i<nlayers;i++){
666 for(j=0;j<ndeep;j++) if(itsGeomTreeCopys[i][j]!=0)
667 k *= TMath::Abs(itsGeomTreeCopys[i][j]);
671 if(fITSgeom!=0) delete fITSgeom;
672 nlad[0]=20;nlad[1]=40;nlad[2]=14;nlad[3]=22;nlad[4]=34;nlad[5]=38;
673 ndet[0]=4;ndet[1]=4;ndet[2]=6;ndet[3]=8;ndet[4]=22;ndet[5]=25;
674 fITSgeom = new AliITSgeom(0,6,nlad,ndet,mod);
676 for(lay=1;lay<=nlayers;lay++){
677 for(j=0;j<ndeep;j++) lnam[j] = itsGeomTreeNames[lay-1][j];
678 for(j=0;j<ndeep;j++) lnum[j] = itsGeomTreeCopys[lay-1][j];
680 case 1: case 2: // layers 1 and 2 are a bit special
682 for(j=1;j<=itsGeomTreeCopys[lay-1][4];j++){
684 for(k=1;k<=itsGeomTreeCopys[lay-1][5];k++){
687 for(det=1;det<=itsGeomTreeCopys[lay-1][6];det++){
690 ig->GetGeometry(ndeep,lnam,lnum,t,r,idshape,npar,natt,
692 fITSgeom->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
693 if(!(fITSgeom->IsShapeDefined((Int_t)kSPD)))
694 if(fMinorVersion==1){
695 fITSgeom->ReSetShape(kSPD,
696 new AliITSgeomSPD300());
697 } else if(fMinorVersion==2)
698 fITSgeom->ReSetShape(kSPD,
699 new AliITSgeomSPD300());
704 case 3: case 4: case 5: case 6: // layers 3-6
706 for(lad=1;lad<=itsGeomTreeCopys[lay-1][4];lad++){
708 for(det=1;det<=itsGeomTreeCopys[lay-1][5];det++){
711 ig->GetGeometry(7,lnam,lnum,t,r,idshape,npar,natt,
715 fITSgeom->CreatMatrix(mod,lay,lad,det,kSDD,t,r);
716 if(!(fITSgeom->IsShapeDefined(kSDD)))
717 fITSgeom->ReSetShape(kSDD,new AliITSgeomSDD300());
720 fITSgeom->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
721 if(!(fITSgeom->IsShapeDefined(kSSD)))
722 fITSgeom->ReSetShape(kSSD,new AliITSgeomSSD175());
732 //_____________________________________________________________________________
733 void AliITSv5symm::Init(){
734 ////////////////////////////////////////////////////////////////////////
735 // Initialise the ITS after it has been created.
736 ////////////////////////////////////////////////////////////////////////
741 for(i=0;i<30;i++) cout << "*";cout << " ITSv5_Init ";
742 for(i=0;i<30;i++) cout << "*";cout << endl;
744 if(fITSgeom==0) bg = kTRUE;
745 if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
746 if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
747 if(fITSgeom!=0) delete fITSgeom;
748 fITSgeom = new AliITSgeom();
749 if(fGeomDetIn && !fGeomOldDetIn) fITSgeom->ReadNewFile(fRead);
750 if(fGeomDetIn && fGeomOldDetIn) this->ReadOldGeometry(fRead);
752 if(!fGeomDetIn) this->InitAliITSgeom();
753 if(fGeomDetOut) fITSgeom->WriteNewFile(fWrite);
754 if(bg) BuildGeometry(); // call BuildGeometry here if fITSgeom was not
758 for(i=0;i<72;i++) cout << "*";
761 //_____________________________________________________________________________
762 void AliITSv5symm::StepManager(){
763 ////////////////////////////////////////////////////////////////////////
764 // Called for every step in the ITS, then calles the AliITShit class
765 // creator with the information to be recoreded about that hit.
766 // The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
767 // printing of information to a file which can be used to create a .det
768 // file read in by the routine CreateGeometry(). If set to 0 or any other
769 // value except 1, the default behavior, then no such file is created nor
770 // it the extra variables and the like used in the printing allocated.
771 ////////////////////////////////////////////////////////////////////////
776 TLorentzVector position, momentum;
777 TClonesArray &lhits = *fHits;
781 if(gMC->IsTrackInside()) vol[3] += 1;
782 if(gMC->IsTrackEntering()) vol[3] += 2;
783 if(gMC->IsTrackExiting()) vol[3] += 4;
784 if(gMC->IsTrackOut()) vol[3] += 8;
785 if(gMC->IsTrackDisappeared()) vol[3] += 16;
786 if(gMC->IsTrackStop()) vol[3] += 32;
787 if(gMC->IsTrackAlive()) vol[3] += 64;
789 // Fill hit structure.
790 if(!(gMC->TrackCharge())) return;
792 // Only entering charged tracks
793 if((id = gMC->CurrentVolID(copy)) == fIdSens[0]) {
795 id = gMC->CurrentVolOffID(0,copy);
796 //detector copy in the ladder = 1<->4 (ITS1)
798 gMC->CurrentVolOffID(1,copy1);
799 //ladder copy in the module = 1<->2 (I186)
800 gMC->CurrentVolOffID(2,copy2);
801 //module copy in the layer = 1<->10 (I132)
802 vol[2] = copy1+(copy2-1)*2;//# of ladders in one module = 2
803 } else if(id == fIdSens[1]){
805 id = gMC->CurrentVolOffID(0,copy);
806 //detector copy in the ladder = 1<->4 (ITS2)
808 gMC->CurrentVolOffID(1,copy1);
809 //ladder copy in the module = 1<->4 (I131)
810 gMC->CurrentVolOffID(2,copy2);
811 //module copy in the layer = 1<->10 (I132)
812 vol[2] = copy1+(copy2-1)*4;//# of ladders in one module = 4
813 } else if(id == fIdSens[2]){
815 id = gMC->CurrentVolOffID(1,copy);
816 //detector copy in the ladder = 1<->5 (ITS3 is inside I314)
818 id = gMC->CurrentVolOffID(2,copy);
819 //ladder copy in the layer = 1<->12 (I316)
821 } else if(id == fIdSens[3]){
823 id = gMC->CurrentVolOffID(1,copy);
824 //detector copy in the ladder = 1<->8 (ITS4 is inside I414)
826 id = gMC->CurrentVolOffID(2,copy);
827 //ladder copy in the layer = 1<->22 (I417)
829 }else if(id == fIdSens[4]){
831 id = gMC->CurrentVolOffID(1,copy);
832 //detector copy in the ladder = 1<->23 (ITS5 is inside I562)
834 id = gMC->CurrentVolOffID(2,copy);
835 //ladder copy in the layer = 1<->34 (I565)
837 }else if(id == fIdSens[5]){
839 id = gMC->CurrentVolOffID(1,copy);
840 //detector copy in the ladder = 1<->26 (ITS6 is inside I566)
842 id = gMC->CurrentVolOffID(2,copy);
843 //ladder copy in the layer = 1<->38 (I569)
846 return; // not an ITS volume?
847 } // end if/else if (gMC->CurentVolID(copy) == fIdSens[i])
849 gMC->TrackPosition(position);
850 gMC->TrackMomentum(momentum);
858 hits[7]=gMC->TrackTime();
859 // Fill hit structure with this new hit.
860 new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);