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 1.4 2001/02/02 23:57:29 nilsen
19 Added include file that are no londer included in AliITSgeom.h
21 Revision 1.3 2001/01/30 09:23:13 hristov
22 Streamers removed (R.Brun)
24 Revision 1.2 2000/11/30 11:13:11 barbera
25 Added changes suggested by Federico Carminati on nov, 30, 2000
27 Revision 1.1 2000/10/07 15:46:29 barbera
28 Version 5 of the geometry with symmetric services
30 Revision 1.25 2000/10/05 20:50:00 nilsen
31 Now using root generated streamers.
33 Revision 1.14.4.12 2000/10/02 16:04:03 barbera
34 Forward declarations added
36 Revision 1.22 2000/07/10 16:07:19 fca
37 Release version of ITS code
39 Revision 1.14.4.4 2000/05/19 10:10:21 nilsen
40 fix for bug with HP and Sun unix + fix for event display in ITS-working branch
42 Revision 1.14.4.3 2000/03/04 23:46:38 nilsen
43 Fixed up the comments/documentation.
45 Revision 1.14.4.2 2000/03/02 21:53:02 nilsen
46 To make it compatable with the changes in AliRun/AliModule.
48 Revision 1.14.4.1 2000/01/12 19:03:33 nilsen
49 This is the version of the files after the merging done in December 1999.
50 See the ReadMe110100.txt file for details
52 Revision 1.14 1999/10/22 08:16:49 fca
53 Correct destructors, thanks to I.Hrivnacova
55 Revision 1.13 1999/10/06 10:15:19 fca
56 Correct bug in allocation of layer name and add destructor
58 Revision 1.12 1999/10/05 08:05:09 fca
59 Minor corrections for uninitialised variables.
61 Revision 1.11 1999/09/29 09:24:20 fca
62 Introduction of the Copyright and cvs Log
66 ///////////////////////////////////////////////////////////////////////////////
68 // Inner Traking System version 5 with symmetric services
69 // This class contains the base procedures for the Inner Tracking System
71 // Authors: R. Barbera, B. S. Nilsen.
73 // Created October 7 2000.
75 ///////////////////////////////////////////////////////////////////////////////
81 #include <TGeometry.h>
84 #include <TFile.h> // only required for Tracking function?
86 #include <TObjArray.h>
87 #include <TLorentzVector.h>
88 #include <TObjString.h>
89 #include <TClonesArray.h>
95 #include "../TGeant3/TGeant3.h"
96 #include "AliITShit.h"
97 #include "AliITSGeant3Geometry.h"
99 #include "AliITSv5symm.h"
100 #include "AliITSgeom.h"
101 #include "AliITSgeomSPD.h"
102 #include "AliITSgeomSDD.h"
103 #include "AliITSgeomSSD.h"
105 ClassImp(AliITSv5symm)
107 //_____________________________________________________________________________
108 AliITSv5symm::AliITSv5symm() {
109 ////////////////////////////////////////////////////////////////////////
110 // Standard default constructor for the ITS version 5.
111 ////////////////////////////////////////////////////////////////////////
117 fEuclidOut = kFALSE; // Don't write Euclide file
118 fGeomDetOut = kFALSE; // Don't write .det file
119 fGeomDetIn = kFALSE; // Read .det file
120 fGeomOldDetIn = kTRUE; // Read old formatted .det file
121 fMajorVersion = IsVersion();
123 for(i=0;i<60;i++) fRead[i] = '\0';
124 for(i=0;i<60;i++) fWrite[i] = '\0';
125 for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
127 //_____________________________________________________________________________
128 AliITSv5symm::AliITSv5symm(const char *name, const char *title) : AliITS(name, title){
129 /////////////////////////////////////////////////////////////////////////////
130 // Standard constructor for the ITS version 5 with symmetrical services.
131 /////////////////////////////////////////////////////////////////////////////
135 fIdName = new TString[fIdN];
142 fIdSens = new Int_t[fIdN];
143 for (i=0;i<fIdN;i++) fIdSens[i] = 0;
144 fEuclidOut = kFALSE; // Don't write Euclide file
145 fGeomDetOut = kFALSE; // Don't write .det file
146 fGeomDetIn = kFALSE; // Read .det file
147 fGeomOldDetIn = kTRUE; // Read old formatted .det file
148 fMajorVersion = IsVersion();
150 for(i=0;i<60;i++) fRead[i] = '\0';
151 for(i=0;i<60;i++) fWrite[i] = '\0';
153 fEuclidMaterial = "$ALICE_ROOT/Euclid/ITSgeometry_5symm.tme";
154 fEuclidGeometry = "$ALICE_ROOT/Euclid/ITSgeometry_5symm.euc";
155 strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_v5symm.det",60);
156 strncpy(fRead,fEuclidGeomDet,60);
157 strncpy(fWrite,fEuclidGeomDet,60);
159 //____________________________________________________________________________
160 AliITSv5symm::AliITSv5symm(const AliITSv5symm &source){
161 ////////////////////////////////////////////////////////////////////////
162 // Copy Constructor for ITS version 5.
163 ////////////////////////////////////////////////////////////////////////
164 if(&source == this) return;
165 Warning("Copy Constructor","Not allowed to copy AliITSv5symm");
168 //_____________________________________________________________________________
169 AliITSv5symm& AliITSv5symm::operator=(const AliITSv5symm &source){
170 ////////////////////////////////////////////////////////////////////////
171 // Assignment operator for the ITS version 5.
172 ////////////////////////////////////////////////////////////////////////
174 if(&source == this) return *this;
175 Warning("= operator","Not allowed to copy AliITSv5symm");
179 //_____________________________________________________________________________
180 AliITSv5symm::~AliITSv5symm() {
181 ////////////////////////////////////////////////////////////////////////
182 // Standard destructor for the ITS version 5.
183 ////////////////////////////////////////////////////////////////////////
184 if(fRead!=0) delete fRead;
185 if(fWrite!=0) delete fWrite;
186 if(fEuclidGeomDet!=0) delete fEuclidGeomDet;
188 //_____________________________________________________________________________
189 void AliITSv5symm::BuildGeometry(){
190 ////////////////////////////////////////////////////////////////////////
191 // Geometry builder for the ITS version 5.
192 ////////////////////////////////////////////////////////////////////////
194 // Build ITS TNODE geometry for event display using detailed geometry.
195 // This function builds a simple ITS geometry used by the ROOT macro
200 //const int kColorITSSPD=kRed;
201 //const int kColorITSSDD=kGreen;
202 const int kColorITSSSD=kBlue;
204 top=gAlice->GetGeometry()->GetNode("alice");
205 AliITSgeom *gm = this->GetITSgeom();
214 //TCanvas *c1 = new TCanvas("c1","ITS");
216 for(lay=1;lay<=2;lay++)
217 for(lad=1;lad<=gm->GetNladders(lay);lad++)
218 for(det=1;det<=gm->GetNdetectors(lay);det++){
220 box = new TBRIK ("ActiveSPD","Active volume of SPD","SPD SI DET",
223 cout << "EXCEPTION in box = new TBRIK" << endl;
226 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
227 gm->GetRotMatrix(lay,lad,det,rt);
228 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
229 for(i=0;i<9;i++) rtd[i] = rt[i];
231 rm = new TRotMatrix(name,name,rtd);
233 cout << "EXCEPTION in new TRotMatrix" << endl;
237 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
239 nd = new TNode("SPD"," ",box,xg[0],xg[1],xg[2],rm);
241 cout << "EXCEPTION in new TNode" << endl;
244 nd->SetLineColor(kColorITSSSD);
248 for(lay=3;lay<=3;lay++)
249 for(lad=1;lad<=gm->GetNladders(lay);lad++)
250 for(det=1;det<=gm->GetNdetectors(lay);det++){
252 box = new TBRIK ("ActiveSDD","Active volume of SDD","SDD SI DET",
255 cout << "EXCEPTION in box = new TBRIK" << endl;
258 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
259 gm->GetRotMatrix(lay,lad,det,rt);
260 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
261 for(i=0;i<9;i++) rtd[i] = rt[i];
263 rm = new TRotMatrix(name,name,rtd);
265 cout << "EXCEPTION in new TRotMatrix" << endl;
269 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
271 nd = new TNode("SDD"," ",box,xg[0],xg[1],xg[2],rm);
273 cout << "EXCEPTION in new TNode" << endl;
276 nd->SetLineColor(kColorITSSSD);
280 for(lay=4;lay<=4;lay++)
281 for(lad=1;lad<=gm->GetNladders(lay);lad++)
282 for(det=1;det<=gm->GetNdetectors(lay);det++){
284 box = new TBRIK ("ActiveSDD","Active volume of SDD","SDD SI DET",
287 cout << "EXCEPTION in box = new TBRIK" << endl;
290 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
291 gm->GetRotMatrix(lay,lad,det,rt);
292 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
293 for(i=0;i<9;i++) rtd[i] = rt[i];
295 rm = new TRotMatrix(name,name,rtd);
297 cout << "EXCEPTION in new TRotMatrix" << endl;
301 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
303 nd = new TNode("SDD"," ",box,xg[0],xg[1],xg[2],rm);
305 cout << "EXCEPTION in new TNode" << endl;
308 nd->SetLineColor(kColorITSSSD);
311 for(lay=5;lay<=5;lay++)
312 for(lad=1;lad<=gm->GetNladders(lay);lad++)
313 for(det=1;det<=gm->GetNdetectors(lay);det++){
315 box = new TBRIK ("ActiveSSD","Active volume of SSD","SSD SI DET",
318 cout << "EXCEPTION in box = new TBRIK" << endl;
321 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
322 gm->GetRotMatrix(lay,lad,det,rt);
323 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
324 for(i=0;i<9;i++) rtd[i] = rt[i];
326 rm = new TRotMatrix(name,name,rtd);
328 cout << "EXCEPTION in new TRotMatrix" << endl;
332 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
334 nd = new TNode("SSD"," ",box,xg[0],xg[1],xg[2],rm);
336 cout << "EXCEPTION in new TNode" << endl;
339 nd->SetLineColor(kColorITSSSD);
343 for(lay=6;lay<=6;lay++)
344 for(lad=1;lad<=gm->GetNladders(lay);lad++)
345 for(det=1;det<=gm->GetNdetectors(lay);det++){
347 box = new TBRIK ("ActiveSSD","Active volume of SSD","SSD SI DET",
350 cout << "EXCEPTION in box = new TBRIK" << endl;
354 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
355 gm->GetRotMatrix(lay,lad,det,rt);
356 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
357 for(i=0;i<9;i++) rtd[i] = rt[i];
359 rm = new TRotMatrix(name,name,rtd);
361 cout << "EXCEPTION in new TRotMatrix" << endl;
365 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
367 nd = new TNode("SSD"," ",box,xg[0],xg[1],xg[2],rm);
369 cout << "EXCEPTION in new TNode" << endl;
372 nd->SetLineColor(kColorITSSSD);
378 //_____________________________________________________________________________
379 void AliITSv5symm::CreateMaterials(){
380 ////////////////////////////////////////////////////////////////////////
381 // Read a file containing the materials for the ITS version 5.
382 ////////////////////////////////////////////////////////////////////////
385 filtmp = gSystem->ExpandPathName(fEuclidMaterial.Data());
387 FILE *file = fopen(filtmp,"r");
390 ReadEuclidMedia(filtmp);
392 Error("CreateMaterials"," THE MEDIA FILE %s DOES NOT EXIST !",filtmp);
396 //_____________________________________________________________________________
397 void AliITSv5symm::CreateGeometry(){
398 //////////////////////////////////////////////////////////////////////
399 // This is the geometry used for the ITS Pre-TDR and comes from an
400 // Euclid to Geant conversion. The only difference
401 // is in the details of the ITS supports. The detectors elements,
402 // detector numbering, and local and global reference frames are shown in
403 // the following figures.
406 <img src="picts/ITS/its1+2_convention_front_5.gif">
409 <font size=+2 color=red>
410 <p>This shows the front view of the SPDs.
413 <img src="picts/ITS/its1+2_convention_side_5.gif">
416 <font size=+2 color=red>
417 <p>This shows the perspective view of the SPDs.
419 <img src="picts/ITS/its1+2_tree.gif">
422 <font size=+2 color=red>
423 <p>This shows the geometry Tree for the SPDs.
428 <img src="picts/ITS/its3+4_convention_front_5.gif">
431 <font size=+2 color=red>
432 <p>This shows the front view of the SDDs.
435 <img src="picts/ITS/its3+4_convention_side_5.gif">
438 <font size=+2 color=red>
439 <p>This shows the perspective view of the SDDs.
441 <img src="picts/ITS/its3+4_tree.gif">
444 <font size=+2 color=red>
445 <p>This shows the geometry Tree for the SDDs.
450 <img src="picts/ITS/its5+6_convention_front_5.gif">
453 <font size=+2 color=red>
454 <p>This shows the front view of the SSDs.
457 <img src="picts/ITS/its5+6_convention_side_5.gif">
460 <font size=+2 color=red>
461 <p>This shows the perspective view of the SSDs.
464 <img src="picts/ITS/its5+6_tree.gif">
467 <font size=+2 color=red>
468 <p>This shows the geometry Tree for the SSDs.
473 <img src="picts/ITS/its_layer1-6_2.gif">
476 <font size=+2 color=red>
477 <p>This shows the front view of the whole ITS..
481 <img src="picts/ITS/its_layer1-6_1.gif">
484 <font size=+2 color=red>
485 <p>This shows the perspective view of the whole ITS..
489 <img src="picts/ITS/its1-6_tree.gif">
492 <font size=+2 color=red>
493 <p>This shows the geometry Tree for the whole ITS.
500 // Here are shown the details of the ITS support cones and services.
501 // First is a GEANT tree showing the organization of all of the volumes
502 // that make up the ITS supports and services.
505 <img src="picts/ITS/supports_tree.gif">
508 // What follows are a number of figures showing what these support
509 // structures look like.
513 <img src="picts/ITS/supports_3.gif">
516 <font size=+2 color=red>
517 <p>This shows the geometry of the supports for the Drift and Strip layers only.
521 <img src="picts/ITS/supports_2.gif">
524 <font size=+2 color=red>
525 <p>This shows the geometry of the supports for the Drift and Strip layers in front cut out.
529 <img src="picts/ITS/supports_1.gif">
532 <font size=+2 color=red>
533 <p>This shows the geometry of the supports for the Drift and Strip layers in a back cut out..
537 <img src="picts/ITS/suppssd.gif">
540 <font size=+2 color=red>
541 <p>This shows the geometry for the Strip layers supports.
545 <img src="picts/ITS/suppsdd.gif">
548 <font size=+2 color=red>
549 <p>This shows the geometry for the Drift layers supports.
555 // Read a file containing the geometry for the ITS version 5.
556 ////////////////////////////////////////////////////////////////////////
560 filtmp = gSystem->ExpandPathName(fEuclidGeometry.Data());
561 FILE *file = fopen(filtmp,"r");
565 printf("Ready to read Euclid geometry file\n");
566 ReadEuclid(fEuclidGeometry.Data(),topvol);
567 printf("Read in euclid geometries\n");
569 Error("CreateGeometry"," THE GEOM FILE %s DOES NOT EXIST !",
570 fEuclidGeometry.Data());
574 // Place the ITS ghost volume ITSV in its mother volume (ALIC) and make it
577 gMC->Gspos("ITSV",1,"ALIC",0,0,0,0,"ONLY");
579 // Outputs the geometry tree in the EUCLID/CAD format if requested to do so
582 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
583 } // end if (fEuclidOut)
584 cout << "finished with euclid geometrys" << endl;
586 //______________________________________________________________________
587 void AliITSv5symm::ReadOldGeometry(const char *filename){
588 // read in the file containing the transformations for the active
589 // volumes for the ITS version 5. This is expected to be in a file
590 // ending in .det. This geometry is kept in the AliITSgeom class.
595 filtmp = gSystem->ExpandPathName(filename);
596 size = strlen(filtmp);
597 if(size>4 && fGeomDetIn){
598 filtmp[size-3] = 'd'; // change from .euc to .det
599 filtmp[size-2] = 'e';
600 filtmp[size-1] = 't';
601 file = fopen(filtmp,"r");
602 if(file){ // if file exists use it to fill AliITSgeom structure.
604 fITSgeom = new AliITSgeom(filtmp);
605 fITSgeom->DefineShapes(3); // if fShape isn't defined define it.
606 // Now define the detector types/shapes.
607 fITSgeom->ReSetShape(kSPD,(TObject *) new AliITSgeomSPD300());
608 fITSgeom->ReSetShape(kSDD,(TObject *) new AliITSgeomSDD300());
609 fITSgeom->ReSetShape(kSSD,(TObject *) new AliITSgeomSSD());
612 // fill AliITSgeom structure from geant structure just filled above
617 //______________________________________________________________________
618 void AliITSv5symm::InitAliITSgeom(){
619 // Based on the geometry tree defined in Geant 3.21, this
620 // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
622 if(!((TGeant3*)gMC)) {
623 Error("InitAliITSgeom",
624 "Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
627 cout << "Reading Geometry transformation directly from Geant 3." << endl;
628 const Int_t nlayers = 6;
629 const Int_t ndeep = 7;
630 Int_t itsGeomTreeNames[nlayers][ndeep],lnam[20],lnum[20];
631 Int_t nlad[nlayers],ndet[nlayers];
633 Float_t par[20],att[20];
634 Int_t npar,natt,idshape,imat,imed;
635 AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
636 Int_t mod,lay,lad,det,i,j,k;
637 char *names[nlayers][ndeep] = {
638 {"ALIC","ITSV","ITSD","IT12","I132","I186","ITS1"}, // lay=1
639 {"ALIC","ITSV","ITSD","IT12","I132","I131","ITS2"}, // lay=2
640 {"ALIC","ITSV","ITSD","IT34","I004","I302","ITS3"}, // lay=3
641 {"ALIC","ITSV","ITSD","IT34","I005","I402","ITS4"}, // lay=4
642 {"ALIC","ITSV","ITSD","IT56","I565","I562","ITS5"}, // lay=5
643 {"ALIC","ITSV","ITSD","IT56","I569","I566","ITS6"}};// lay=6
644 Int_t itsGeomTreeCopys[nlayers][ndeep] = {{1,1,1,1,10, 2,4}, // lay=1
645 {1,1,1,1,10, 4,4}, // lay=2
646 {1,1,1,1,14, 6,1}, // lay=3
647 {1,1,1,1,22, 8,1}, // lay=4
648 {1,1,1,1,34,23,1}, // lay=5
649 {1,1,1,1,38,26,1}};// lay=6
651 // Sorry, but this is not very pritty code. It should be replaced
652 // at some point with a version that can search through the geometry
654 cout << "Reading Geometry informaton from Geant3 common blocks" << endl;
655 for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
656 for(i=0;i<nlayers;i++)for(j=0;j<ndeep;j++)
657 itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
659 for(i=0;i<nlayers;i++){
661 for(j=0;j<ndeep;j++) if(itsGeomTreeCopys[i][j]!=0)
662 k *= TMath::Abs(itsGeomTreeCopys[i][j]);
666 if(fITSgeom!=0) delete fITSgeom;
667 nlad[0]=20;nlad[1]=40;nlad[2]=14;nlad[3]=22;nlad[4]=34;nlad[5]=38;
668 ndet[0]=4;ndet[1]=4;ndet[2]=6;ndet[3]=8;ndet[4]=22;ndet[5]=25;
669 fITSgeom = new AliITSgeom(0,6,nlad,ndet,mod);
671 for(lay=1;lay<=nlayers;lay++){
672 for(j=0;j<ndeep;j++) lnam[j] = itsGeomTreeNames[lay-1][j];
673 for(j=0;j<ndeep;j++) lnum[j] = itsGeomTreeCopys[lay-1][j];
675 case 1: case 2: // layers 1 and 2 are a bit special
677 for(j=1;j<=itsGeomTreeCopys[lay-1][4];j++){
679 for(k=1;k<=itsGeomTreeCopys[lay-1][5];k++){
682 for(det=1;det<=itsGeomTreeCopys[lay-1][6];det++){
685 ig->GetGeometry(ndeep,lnam,lnum,t,r,idshape,npar,natt,
687 fITSgeom->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
688 if(!(fITSgeom->IsShapeDefined((Int_t)kSPD)))
689 if(fMinorVersion==1){
690 fITSgeom->ReSetShape(kSPD,
691 new AliITSgeomSPD300());
692 } else if(fMinorVersion==2)
693 fITSgeom->ReSetShape(kSPD,
694 new AliITSgeomSPD300());
699 case 3: case 4: case 5: case 6: // layers 3-6
701 for(lad=1;lad<=itsGeomTreeCopys[lay-1][4];lad++){
703 for(det=1;det<=itsGeomTreeCopys[lay-1][5];det++){
706 ig->GetGeometry(7,lnam,lnum,t,r,idshape,npar,natt,
710 fITSgeom->CreatMatrix(mod,lay,lad,det,kSDD,t,r);
711 if(!(fITSgeom->IsShapeDefined(kSDD)))
712 fITSgeom->ReSetShape(kSDD,new AliITSgeomSDD300());
715 fITSgeom->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
716 if(!(fITSgeom->IsShapeDefined(kSSD)))
717 fITSgeom->ReSetShape(kSSD,new AliITSgeomSSD175());
727 //_____________________________________________________________________________
728 void AliITSv5symm::Init(){
729 ////////////////////////////////////////////////////////////////////////
730 // Initialise the ITS after it has been created.
731 ////////////////////////////////////////////////////////////////////////
735 for(i=0;i<30;i++) cout << "*";cout << " ITSv5_Init ";
736 for(i=0;i<30;i++) cout << "*";cout << endl;
738 if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
739 if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
740 if(fITSgeom!=0) delete fITSgeom;
741 fITSgeom = new AliITSgeom();
742 if(fGeomDetIn && !fGeomOldDetIn) fITSgeom->ReadNewFile(fRead);
743 if(fGeomDetIn && fGeomOldDetIn) this->ReadOldGeometry(fRead);
745 if(!fGeomDetIn) this->InitAliITSgeom();
746 if(fGeomDetOut) fITSgeom->WriteNewFile(fWrite);
749 for(i=0;i<72;i++) cout << "*";
752 //_____________________________________________________________________________
753 void AliITSv5symm::StepManager(){
754 ////////////////////////////////////////////////////////////////////////
755 // Called for every step in the ITS, then calles the AliITShit class
756 // creator with the information to be recoreded about that hit.
757 // The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
758 // printing of information to a file which can be used to create a .det
759 // file read in by the routine CreateGeometry(). If set to 0 or any other
760 // value except 1, the default behavior, then no such file is created nor
761 // it the extra variables and the like used in the printing allocated.
762 ////////////////////////////////////////////////////////////////////////
767 TLorentzVector position, momentum;
768 TClonesArray &lhits = *fHits;
772 if(gMC->IsTrackInside()) vol[3] += 1;
773 if(gMC->IsTrackEntering()) vol[3] += 2;
774 if(gMC->IsTrackExiting()) vol[3] += 4;
775 if(gMC->IsTrackOut()) vol[3] += 8;
776 if(gMC->IsTrackDisappeared()) vol[3] += 16;
777 if(gMC->IsTrackStop()) vol[3] += 32;
778 if(gMC->IsTrackAlive()) vol[3] += 64;
780 // Fill hit structure.
781 if(!(gMC->TrackCharge())) return;
783 // Only entering charged tracks
784 if((id = gMC->CurrentVolID(copy)) == fIdSens[0]) {
786 id = gMC->CurrentVolOffID(0,copy);
787 //detector copy in the ladder = 1<->4 (ITS1)
789 gMC->CurrentVolOffID(1,copy1);
790 //ladder copy in the module = 1<->2 (I186)
791 gMC->CurrentVolOffID(2,copy2);
792 //module copy in the layer = 1<->10 (I132)
793 vol[2] = copy1+(copy2-1)*2;//# of ladders in one module = 2
794 } else if(id == fIdSens[1]){
796 id = gMC->CurrentVolOffID(0,copy);
797 //detector copy in the ladder = 1<->4 (ITS2)
799 gMC->CurrentVolOffID(1,copy1);
800 //ladder copy in the module = 1<->4 (I131)
801 gMC->CurrentVolOffID(2,copy2);
802 //module copy in the layer = 1<->10 (I132)
803 vol[2] = copy1+(copy2-1)*4;//# of ladders in one module = 4
804 } else if(id == fIdSens[2]){
806 id = gMC->CurrentVolOffID(1,copy);
807 //detector copy in the ladder = 1<->5 (ITS3 is inside I314)
809 id = gMC->CurrentVolOffID(2,copy);
810 //ladder copy in the layer = 1<->12 (I316)
812 } else if(id == fIdSens[3]){
814 id = gMC->CurrentVolOffID(1,copy);
815 //detector copy in the ladder = 1<->8 (ITS4 is inside I414)
817 id = gMC->CurrentVolOffID(2,copy);
818 //ladder copy in the layer = 1<->22 (I417)
820 }else if(id == fIdSens[4]){
822 id = gMC->CurrentVolOffID(1,copy);
823 //detector copy in the ladder = 1<->23 (ITS5 is inside I562)
825 id = gMC->CurrentVolOffID(2,copy);
826 //ladder copy in the layer = 1<->34 (I565)
828 }else if(id == fIdSens[5]){
830 id = gMC->CurrentVolOffID(1,copy);
831 //detector copy in the ladder = 1<->26 (ITS6 is inside I566)
833 id = gMC->CurrentVolOffID(2,copy);
834 //ladder copy in the layer = 1<->38 (I569)
837 return; // not an ITS volume?
838 } // end if/else if (gMC->CurentVolID(copy) == fIdSens[i])
840 gMC->TrackPosition(position);
841 gMC->TrackMomentum(momentum);
849 hits[7]=gMC->TrackTime();
850 // Fill hit structure with this new hit.
851 new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);