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 1.36 2002/10/14 14:57:08 hristov
19 Merging the VirtualMC branch to the main development branch (HEAD)
21 Revision 1.35.10.2 2002/08/30 15:45:54 alibrary
22 Adding geant4vmc support
24 Revision 1.35.10.1 2002/06/10 17:51:15 hristov
27 Revision 1.35 2001/05/30 16:15:47 fca
28 Correct comparison wiht AliGeant3::Class() introduced. Thanks to I.Hrivnacova
30 Revision 1.34 2001/05/30 15:55:35 hristov
31 Strings compared instead of pointers
33 Revision 1.33 2001/05/30 14:04:31 hristov
34 Dynamic cast replaced (F.Carminati)
36 Revision 1.32 2001/03/23 00:12:23 nilsen
37 Set Reading of AliITSgeom data from Geant3 common blocks as the default and
38 not a .det file. Removed redundent calls to BuildGeometry.
40 Revision 1.31 2001/02/13 16:53:35 nilsen
41 Fixed a but when trying to use GEANT4. Needed to replace
42 if(!((TGeant3*)gMC)) with if(!(dynamic_casst<TGeant3*>(gMC)))
43 because just casting gMC to be TGeant3* even when it realy is a TGeant3 pointer
44 did not result in a zero value. For AliITSv5asymm and AliITSv5symm, needed
45 to fix a bug in the initilizers and a bug in BuildGeometry. This is now done
46 in the same way as in AliITSv5.cxx.
48 Revision 1.30 2001/02/09 20:06:26 nilsen
49 Fixed bug in distructor. Can't distroy fixxed length arrays. Thanks Peter.
51 Revision 1.29 2001/02/09 00:05:31 nilsen
52 Added fMajor/MinorVersion variables and made other changes to better make
53 use of the new code changes in AliITSgeom related classes.
55 Revision 1.28 2001/02/02 23:57:28 nilsen
56 Added include file that are no londer included in AliITSgeom.h
58 Revision 1.27 2001/01/30 09:23:13 hristov
59 Streamers removed (R.Brun)
61 Revision 1.26 2000/11/30 11:13:11 barbera
62 Added changes suggested by Federico Carminati on nov, 30, 2000
64 Revision 1.25 2000/10/05 20:50:00 nilsen
65 Now using root generated streamers.
67 Revision 1.14.4.12 2000/10/02 16:04:03 barbera
68 Forward declarations added
70 Revision 1.22 2000/07/10 16:07:19 fca
71 Release version of ITS code
73 Revision 1.14.4.4 2000/05/19 10:10:21 nilsen
74 fix for bug with HP and Sun unix + fix for event display in ITS-working branch
76 Revision 1.14.4.3 2000/03/04 23:46:38 nilsen
77 Fixed up the comments/documentation.
79 Revision 1.14.4.2 2000/03/02 21:53:02 nilsen
80 To make it compatable with the changes in AliRun/AliModule.
82 Revision 1.14.4.1 2000/01/12 19:03:33 nilsen
83 This is the version of the files after the merging done in December 1999.
84 See the ReadMe110100.txt file for details
86 Revision 1.14 1999/10/22 08:16:49 fca
87 Correct destructors, thanks to I.Hrivnacova
89 Revision 1.13 1999/10/06 10:15:19 fca
90 Correct bug in allocation of layer name and add destructor
92 Revision 1.12 1999/10/05 08:05:09 fca
93 Minor corrections for uninitialised variables.
95 Revision 1.11 1999/09/29 09:24:20 fca
96 Introduction of the Copyright and cvs Log
100 ///////////////////////////////////////////////////////////////////////////////
102 // Inner Traking System version 5
103 // This class contains the base procedures for the Inner Tracking System
105 // Authors: R. Barbera, B. S. Nilsen.
107 // Created September 17 1999.
109 ///////////////////////////////////////////////////////////////////////////////
110 #include <Riostream.h>
114 #include <TGeometry.h>
117 #include <TFile.h> // only required for Tracking function?
119 #include <TObjArray.h>
120 #include <TLorentzVector.h>
121 #include <TObjString.h>
122 #include <TClonesArray.h>
128 #include "AliITShit.h"
129 #include "AliITSGeant3Geometry.h"
131 #include "AliITSv5.h"
132 #include "AliITSgeom.h"
133 #include "AliITSgeomSPD.h"
134 #include "AliITSgeomSDD.h"
135 #include "AliITSgeomSSD.h"
139 //_____________________________________________________________________________
140 AliITSv5::AliITSv5() {
141 ////////////////////////////////////////////////////////////////////////
142 // Standard default constructor for the ITS version 5.
143 ////////////////////////////////////////////////////////////////////////
149 fEuclidOut = kFALSE; // Don't write Euclide file
150 fGeomDetOut = kFALSE; // Don't write .det file
151 fGeomDetIn = kFALSE; // Don't Read .det file
152 fGeomOldDetIn = kFALSE; // Don't Read old formatted .det file
153 fMajorVersion = IsVersion();
155 for(i=0;i<60;i++) fRead[i] = '\0';
156 for(i=0;i<60;i++) fWrite[i] = '\0';
157 for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
159 //_____________________________________________________________________________
160 AliITSv5::AliITSv5(const char *name, const char *title) : AliITS(name, title){
161 ////////////////////////////////////////////////////////////////////////
162 // Standard constructor for the ITS version 5.
163 ////////////////////////////////////////////////////////////////////////
167 fIdName = new TString[fIdN];
174 fIdSens = new Int_t[fIdN];
175 for (i=0;i<fIdN;i++) fIdSens[i] = 0;
176 fEuclidOut = kFALSE; // Don't write Euclide file
177 fGeomDetOut = kFALSE; // Don't write .det file
178 fGeomDetIn = kFALSE; // Don't Read .det file
179 fGeomOldDetIn = kFALSE; // Don't Read old formatted .det file
180 fMajorVersion = IsVersion();
182 for(i=0;i<60;i++) fRead[i] = '\0';
183 for(i=0;i<60;i++) fWrite[i] = '\0';
185 fEuclidMaterial = "$ALICE_ROOT/Euclid/ITSgeometry_5.tme";
186 fEuclidGeometry = "$ALICE_ROOT/Euclid/ITSgeometry_5.euc";
187 strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_v5.det",60);
188 strncpy(fRead,fEuclidGeomDet,60);
189 strncpy(fWrite,fEuclidGeomDet,60);
191 //____________________________________________________________________________
192 AliITSv5::AliITSv5(const AliITSv5 &source){
193 ////////////////////////////////////////////////////////////////////////
194 // Copy Constructor for ITS version 5.
195 ////////////////////////////////////////////////////////////////////////
196 if(&source == this) return;
197 Warning("Copy Constructor","Not allowed to copy AliITSv5");
200 //_____________________________________________________________________________
201 AliITSv5& AliITSv5::operator=(const AliITSv5 &source){
202 ////////////////////////////////////////////////////////////////////////
203 // Assignment operator for the ITS version 5.
204 ////////////////////////////////////////////////////////////////////////
206 if(&source == this) return *this;
207 Warning("= operator","Not allowed to copy AliITSv5");
211 //_____________________________________________________________________________
212 AliITSv5::~AliITSv5() {
213 ////////////////////////////////////////////////////////////////////////
214 // Standard destructor for the ITS version 5.
215 ////////////////////////////////////////////////////////////////////////
217 //______________________________________________________________________
218 void AliITSv5::BuildGeometry(){
219 ////////////////////////////////////////////////////////////////////////
220 // Geometry builder for the ITS version 5.
221 ////////////////////////////////////////////////////////////////////////
223 // Build ITS TNODE geometry for event display using detailed geometry.
224 // This function builds a simple ITS geometry used by the ROOT macro
229 //const int kColorITSSPD=kRed;
230 //const int kColorITSSDD=kGreen;
231 const int kColorITSSSD=kBlue;
233 AliITSgeom *gm = this->GetITSgeom();
235 top=gAlice->GetGeometry()->GetNode("alice");
244 //TCanvas *c1 = new TCanvas("c1","ITS");
246 for(lay=1;lay<=2;lay++)
247 for(lad=1;lad<=gm->GetNladders(lay);lad++)
248 for(det=1;det<=gm->GetNdetectors(lay);det++){
250 box = new TBRIK ("ActiveSPD","Active volume of SPD","SPD SI DET",
253 cout << "EXCEPTION in box = new TBRIK" << endl;
256 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
257 gm->GetRotMatrix(lay,lad,det,rt);
258 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
259 for(i=0;i<9;i++) rtd[i] = rt[i];
261 rm = new TRotMatrix(name,name,rtd);
263 cout << "EXCEPTION in new TRotMatrix" << endl;
267 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
269 nd = new TNode("SPD"," ",box,xg[0],xg[1],xg[2],rm);
271 cout << "EXCEPTION in new TNode" << endl;
274 nd->SetLineColor(kColorITSSSD);
278 for(lay=3;lay<=3;lay++)
279 for(lad=1;lad<=gm->GetNladders(lay);lad++)
280 for(det=1;det<=gm->GetNdetectors(lay);det++){
282 box = new TBRIK ("ActiveSDD","Active volume of SDD","SDD SI DET",
285 cout << "EXCEPTION in box = new TBRIK" << endl;
288 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
289 gm->GetRotMatrix(lay,lad,det,rt);
290 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
291 for(i=0;i<9;i++) rtd[i] = rt[i];
293 rm = new TRotMatrix(name,name,rtd);
295 cout << "EXCEPTION in new TRotMatrix" << endl;
299 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
301 nd = new TNode("SDD"," ",box,xg[0],xg[1],xg[2],rm);
303 cout << "EXCEPTION in new TNode" << endl;
306 nd->SetLineColor(kColorITSSSD);
310 for(lay=4;lay<=4;lay++)
311 for(lad=1;lad<=gm->GetNladders(lay);lad++)
312 for(det=1;det<=gm->GetNdetectors(lay);det++){
314 box = new TBRIK ("ActiveSDD","Active volume of SDD","SDD SI DET",
317 cout << "EXCEPTION in box = new TBRIK" << endl;
320 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
321 gm->GetRotMatrix(lay,lad,det,rt);
322 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
323 for(i=0;i<9;i++) rtd[i] = rt[i];
325 rm = new TRotMatrix(name,name,rtd);
327 cout << "EXCEPTION in new TRotMatrix" << endl;
331 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
333 nd = new TNode("SDD"," ",box,xg[0],xg[1],xg[2],rm);
335 cout << "EXCEPTION in new TNode" << endl;
338 nd->SetLineColor(kColorITSSSD);
341 for(lay=5;lay<=5;lay++)
342 for(lad=1;lad<=gm->GetNladders(lay);lad++)
343 for(det=1;det<=gm->GetNdetectors(lay);det++){
345 box = new TBRIK ("ActiveSSD","Active volume of SSD","SSD SI DET",
348 cout << "EXCEPTION in box = new TBRIK" << endl;
351 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
352 gm->GetRotMatrix(lay,lad,det,rt);
353 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
354 for(i=0;i<9;i++) rtd[i] = rt[i];
356 rm = new TRotMatrix(name,name,rtd);
358 cout << "EXCEPTION in new TRotMatrix" << endl;
362 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
364 nd = new TNode("SSD"," ",box,xg[0],xg[1],xg[2],rm);
366 cout << "EXCEPTION in new TNode" << endl;
369 nd->SetLineColor(kColorITSSSD);
373 for(lay=6;lay<=6;lay++)
374 for(lad=1;lad<=gm->GetNladders(lay);lad++)
375 for(det=1;det<=gm->GetNdetectors(lay);det++){
377 box = new TBRIK ("ActiveSSD","Active volume of SSD","SSD SI DET",
380 cout << "EXCEPTION in box = new TBRIK" << endl;
384 gm->GetTrans(lay,lad,det,xg[0],xg[1],xg[2]);
385 gm->GetRotMatrix(lay,lad,det,rt);
386 //sprintf(name,"ROT%1.1d2.2d2.2d",lay,lad,det);
387 for(i=0;i<9;i++) rtd[i] = rt[i];
389 rm = new TRotMatrix(name,name,rtd);
391 cout << "EXCEPTION in new TRotMatrix" << endl;
395 //sprintf(name,"ND%1.1d2.2d2.2d",lay,lad,det);
397 nd = new TNode("SSD"," ",box,xg[0],xg[1],xg[2],rm);
399 cout << "EXCEPTION in new TNode" << endl;
402 nd->SetLineColor(kColorITSSSD);
408 //_____________________________________________________________________________
409 void AliITSv5::CreateMaterials(){
410 ////////////////////////////////////////////////////////////////////////
411 // Read a file containing the materials for the ITS version 5.
412 ////////////////////////////////////////////////////////////////////////
415 filtmp = gSystem->ExpandPathName(fEuclidMaterial.Data());
417 FILE *file = fopen(filtmp,"r");
420 ReadEuclidMedia(filtmp);
422 Error("CreateMaterials"," THE MEDIA FILE %s DOES NOT EXIST !",filtmp);
426 //_____________________________________________________________________________
427 void AliITSv5::CreateGeometry(){
428 //////////////////////////////////////////////////////////////////////
429 // This is the geometry used for the ITS Pre-TDR and comes from an
430 // Euclid to Geant conversion. The only difference
431 // is in the details of the ITS supports. The detectors elements,
432 // detector numbering, and local and global reference frames are shown in
433 // the following figures.
436 <img src="picts/ITS/its1+2_convention_front_5.gif">
439 <font size=+2 color=red>
440 <p>This shows the front view of the SPDs.
443 <img src="picts/ITS/its1+2_convention_side_5.gif">
446 <font size=+2 color=red>
447 <p>This shows the perspective view of the SPDs.
449 <img src="picts/ITS/its1+2_tree.gif">
452 <font size=+2 color=red>
453 <p>This shows the geometry Tree for the SPDs.
458 <img src="picts/ITS/its3+4_convention_front_5.gif">
461 <font size=+2 color=red>
462 <p>This shows the front view of the SDDs.
465 <img src="picts/ITS/its3+4_convention_side_5.gif">
468 <font size=+2 color=red>
469 <p>This shows the perspective view of the SDDs.
471 <img src="picts/ITS/its3+4_tree.gif">
474 <font size=+2 color=red>
475 <p>This shows the geometry Tree for the SDDs.
480 <img src="picts/ITS/its5+6_convention_front_5.gif">
483 <font size=+2 color=red>
484 <p>This shows the front view of the SSDs.
487 <img src="picts/ITS/its5+6_convention_side_5.gif">
490 <font size=+2 color=red>
491 <p>This shows the perspective view of the SSDs.
494 <img src="picts/ITS/its5+6_tree.gif">
497 <font size=+2 color=red>
498 <p>This shows the geometry Tree for the SSDs.
503 <img src="picts/ITS/its_layer1-6_2.gif">
506 <font size=+2 color=red>
507 <p>This shows the front view of the whole ITS..
511 <img src="picts/ITS/its_layer1-6_1.gif">
514 <font size=+2 color=red>
515 <p>This shows the perspective view of the whole ITS..
519 <img src="picts/ITS/its1-6_tree.gif">
522 <font size=+2 color=red>
523 <p>This shows the geometry Tree for the whole ITS.
530 // Here are shown the details of the ITS support cones and services.
531 // First is a GEANT tree showing the organization of all of the volumes
532 // that make up the ITS supports and services.
535 <img src="picts/ITS/supports_tree.gif">
538 // What follows are a number of figures showing what these support
539 // structures look like.
543 <img src="picts/ITS/supports_3.gif">
546 <font size=+2 color=red>
547 <p>This shows the geometry of the supports for the Drift and Strip layers only.
551 <img src="picts/ITS/supports_2.gif">
554 <font size=+2 color=red>
555 <p>This shows the geometry of the supports for the Drift and Strip layers in front cut out.
559 <img src="picts/ITS/supports_1.gif">
562 <font size=+2 color=red>
563 <p>This shows the geometry of the supports for the Drift and Strip layers in a back cut out..
567 <img src="picts/ITS/suppssd.gif">
570 <font size=+2 color=red>
571 <p>This shows the geometry for the Strip layers supports.
575 <img src="picts/ITS/suppsdd.gif">
578 <font size=+2 color=red>
579 <p>This shows the geometry for the Drift layers supports.
585 // Read a file containing the geometry for the ITS version 5.
586 ////////////////////////////////////////////////////////////////////////
592 filtmp = gSystem->ExpandPathName(fEuclidGeometry.Data());
593 FILE *file = fopen(filtmp,"r");
597 cout << "Ready to read Euclid geometry file" << endl;
598 ReadEuclid(fEuclidGeometry.Data(),topvol);
599 printf("Read in euclid geometries\n");
601 Error("CreateGeometry"," THE GEOM FILE %s DOES NOT EXIST !",
602 fEuclidGeometry.Data());
606 // Place the ITS ghost volume ITSV in its mother volume (ALIC) and make it
609 gMC->Gspos("ITSV",1,"ALIC",0,0,0,0,"ONLY");
611 // Outputs the geometry tree in the EUCLID/CAD format if requested to do so
614 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
615 } // end if (fEuclidOut)
617 cout << "finished with euclid geometrys" << endl;
619 //______________________________________________________________________
620 void AliITSv5::ReadOldGeometry(const char *filename){
621 // read in the file containing the transformations for the active
622 // volumes for the ITS version 5. This is expected to be in a file
623 // ending in .det. This geometry is kept in the AliITSgeom class.
628 if(fITSgeom!=0) delete fITSgeom;
629 filtmp = gSystem->ExpandPathName(filename);
630 size = strlen(filtmp);
631 if(size>4 && fGeomDetIn){
632 filtmp[size-3] = 'd'; // change from .euc to .det
633 filtmp[size-2] = 'e';
634 filtmp[size-1] = 't';
635 file = fopen(filtmp,"r");
636 if(file){ // if file exists use it to fill AliITSgeom structure.
638 fITSgeom = new AliITSgeom(filtmp);
639 fITSgeom->DefineShapes(3); // if fShape isn't defined define it.
640 // Now define the detector types/shapes.
641 fITSgeom->ReSetShape(kSPD,new AliITSgeomSPD300());
642 fITSgeom->ReSetShape(kSDD,new AliITSgeomSDD300());
643 fITSgeom->ReSetShape(kSSD,new AliITSgeomSSD175());
646 // fill AliITSgeom structure from geant structure just filled above
651 //______________________________________________________________________
652 void AliITSv5::InitAliITSgeom(){
653 // Based on the geometry tree defined in Geant 3.21, this
654 // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
656 // if(gMC->IsA()!=TGeant3::Class()) {
657 if(strcmp(gMC->GetName(),"TGeant3")) {
658 Error("InitAliITSgeom",
659 "Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
662 cout << "Reading Geometry transformation directly from Geant 3." << endl;
663 const Int_t nlayers = 6;
664 const Int_t ndeep = 7;
665 Int_t itsGeomTreeNames[nlayers][ndeep],lnam[20],lnum[20];
666 Int_t nlad[nlayers],ndet[nlayers];
668 Float_t par[20],att[20];
669 Int_t npar,natt,idshape,imat,imed;
670 AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
671 Int_t mod,lay,lad,det,i,j,k;
672 char *names[nlayers][ndeep] = {
673 {"ALIC","ITSV","ITSD","IT12","I132","I186","ITS1"}, // lay=1
674 {"ALIC","ITSV","ITSD","IT12","I132","I131","ITS2"}, // lay=2
675 {"ALIC","ITSV","ITSD","IT34","I004","I302","ITS3"}, // lay=3
676 {"ALIC","ITSV","ITSD","IT34","I005","I402","ITS4"}, // lay=4
677 {"ALIC","ITSV","ITSD","IT56","I565","I562","ITS5"}, // lay=5
678 {"ALIC","ITSV","ITSD","IT56","I569","I566","ITS6"}};// lay=6
679 Int_t itsGeomTreeCopys[nlayers][ndeep] = {{1,1,1,1,10, 2,4}, // lay=1
680 {1,1,1,1,10, 4,4}, // lay=2
681 {1,1,1,1,14, 6,1}, // lay=3
682 {1,1,1,1,22, 8,1}, // lay=4
683 {1,1,1,1,34,23,1}, // lay=5
684 {1,1,1,1,38,26,1}};// lay=6
686 // Sorry, but this is not very pritty code. It should be replaced
687 // at some point with a version that can search through the geometry
689 for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
690 for(i=0;i<nlayers;i++)for(j=0;j<ndeep;j++)
691 itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
693 for(i=0;i<nlayers;i++){
695 for(j=0;j<ndeep;j++) if(itsGeomTreeCopys[i][j]!=0)
696 k *= TMath::Abs(itsGeomTreeCopys[i][j]);
700 if(fITSgeom!=0) delete fITSgeom;
701 nlad[0]=20;nlad[1]=40;nlad[2]=14;nlad[3]=22;nlad[4]=34;nlad[5]=38;
702 ndet[0]=4;ndet[1]=4;ndet[2]=6;ndet[3]=8;ndet[4]=22;ndet[5]=25;
703 fITSgeom = new AliITSgeom(0,6,nlad,ndet,mod);
705 for(lay=1;lay<=nlayers;lay++){
706 for(j=0;j<ndeep;j++) lnam[j] = itsGeomTreeNames[lay-1][j];
707 for(j=0;j<ndeep;j++) lnum[j] = itsGeomTreeCopys[lay-1][j];
709 case 1: case 2: // layers 1 and 2 are a bit special
711 for(j=1;j<=itsGeomTreeCopys[lay-1][4];j++){
713 for(k=1;k<=itsGeomTreeCopys[lay-1][5];k++){
716 for(det=1;det<=itsGeomTreeCopys[lay-1][6];det++){
719 ig->GetGeometry(ndeep,lnam,lnum,t,r,idshape,npar,natt,
721 fITSgeom->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
722 if(!(fITSgeom->IsShapeDefined((Int_t)kSPD)))
723 fITSgeom->ReSetShape(kSPD,
724 new AliITSgeomSPD300());
729 case 3: case 4: case 5: case 6: // layers 3-6
731 for(lad=1;lad<=itsGeomTreeCopys[lay-1][4];lad++){
733 for(det=1;det<=itsGeomTreeCopys[lay-1][5];det++){
736 ig->GetGeometry(7,lnam,lnum,t,r,idshape,npar,natt,
740 fITSgeom->CreatMatrix(mod,lay,lad,det,kSDD,t,r);
741 if(!(fITSgeom->IsShapeDefined(kSDD)))
742 fITSgeom->ReSetShape(kSDD,new AliITSgeomSDD300());
745 fITSgeom->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
746 if(!(fITSgeom->IsShapeDefined(kSSD)))
747 fITSgeom->ReSetShape(kSSD,new AliITSgeomSSD175());
757 //_____________________________________________________________________________
758 void AliITSv5::Init(){
759 ////////////////////////////////////////////////////////////////////////
760 // Initialise the ITS after it has been created.
761 ////////////////////////////////////////////////////////////////////////
765 for(i=0;i<30;i++) cout << "*";cout << " ITSv5_Init ";
766 for(i=0;i<30;i++) cout << "*";cout << endl;
768 if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
769 if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
770 if(fGeomDetIn && !fGeomOldDetIn){
771 if(fITSgeom!=0) delete fITSgeom;
772 fITSgeom = new AliITSgeom();
773 fITSgeom->ReadNewFile(fRead);
775 if(fGeomDetIn && fGeomOldDetIn) ReadOldGeometry(fEuclidGeometry.Data());
777 if(!fGeomDetIn) this->InitAliITSgeom();
778 if(fGeomDetOut) fITSgeom->WriteNewFile(fWrite);
781 for(i=0;i<72;i++) cout << "*";
784 //_____________________________________________________________________________
785 void AliITSv5::StepManager(){
786 ////////////////////////////////////////////////////////////////////////
787 // Called for every step in the ITS, then calles the AliITShit class
788 // creator with the information to be recoreded about that hit.
789 // The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
790 // printing of information to a file which can be used to create a .det
791 // file read in by the routine CreateGeometry(). If set to 0 or any other
792 // value except 1, the default behavior, then no such file is created nor
793 // it the extra variables and the like used in the printing allocated.
794 ////////////////////////////////////////////////////////////////////////
799 TLorentzVector position, momentum;
800 TClonesArray &lhits = *fHits;
804 if(gMC->IsTrackInside()) vol[3] += 1;
805 if(gMC->IsTrackEntering()) vol[3] += 2;
806 if(gMC->IsTrackExiting()) vol[3] += 4;
807 if(gMC->IsTrackOut()) vol[3] += 8;
808 if(gMC->IsTrackDisappeared()) vol[3] += 16;
809 if(gMC->IsTrackStop()) vol[3] += 32;
810 if(gMC->IsTrackAlive()) vol[3] += 64;
812 // Fill hit structure.
813 if(!(gMC->TrackCharge())) return;
815 // Only entering charged tracks
816 if((id = gMC->CurrentVolID(copy)) == fIdSens[0]) {
818 id = gMC->CurrentVolOffID(0,copy);
819 //detector copy in the ladder = 1<->4 (ITS1)
821 gMC->CurrentVolOffID(1,copy1);
822 //ladder copy in the module = 1<->2 (I186)
823 gMC->CurrentVolOffID(2,copy2);
824 //module copy in the layer = 1<->10 (I132)
825 vol[2] = copy1+(copy2-1)*2;//# of ladders in one module = 2
826 } else if(id == fIdSens[1]){
828 id = gMC->CurrentVolOffID(0,copy);
829 //detector copy in the ladder = 1<->4 (ITS2)
831 gMC->CurrentVolOffID(1,copy1);
832 //ladder copy in the module = 1<->4 (I131)
833 gMC->CurrentVolOffID(2,copy2);
834 //module copy in the layer = 1<->10 (I132)
835 vol[2] = copy1+(copy2-1)*4;//# of ladders in one module = 4
836 } else if(id == fIdSens[2]){
838 id = gMC->CurrentVolOffID(1,copy);
839 //detector copy in the ladder = 1<->5 (ITS3 is inside I314)
841 id = gMC->CurrentVolOffID(2,copy);
842 //ladder copy in the layer = 1<->12 (I316)
844 } else if(id == fIdSens[3]){
846 id = gMC->CurrentVolOffID(1,copy);
847 //detector copy in the ladder = 1<->8 (ITS4 is inside I414)
849 id = gMC->CurrentVolOffID(2,copy);
850 //ladder copy in the layer = 1<->22 (I417)
852 }else if(id == fIdSens[4]){
854 id = gMC->CurrentVolOffID(1,copy);
855 //detector copy in the ladder = 1<->23 (ITS5 is inside I562)
857 id = gMC->CurrentVolOffID(2,copy);
858 //ladder copy in the layer = 1<->34 (I565)
860 }else if(id == fIdSens[5]){
862 id = gMC->CurrentVolOffID(1,copy);
863 //detector copy in the ladder = 1<->26 (ITS6 is inside I566)
865 id = gMC->CurrentVolOffID(2,copy);
866 //ladder copy in the layer = 1<->38 (I569)
869 return; // not an ITS volume?
870 } // end if/else if (gMC->CurentVolID(copy) == fIdSens[i])
872 gMC->TrackPosition(position);
873 gMC->TrackMomentum(momentum);
881 hits[7]=gMC->TrackTime();
882 // Fill hit structure with this new hit.
883 new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);