ITS/AliITSvtest.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
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   8  * documentation strictly for non-commercial purposes is hereby granted   *
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  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  **************************************************************************/
  15
  16 /* $Id$ */
  17
  18 ///////////////////////////////////////////////////////////////////////////////
  19 //                                                                           //
  20 //  Inner Traking System version Test                                        //
  21 //  This class contains the base procedures for the Inner Tracking System    //
  22 //                                                                           //
  23 // Authors: R. Barbera, B. S. Nilsen.                                        //
  24 // version  Test                                                             //
  25 // Created October 16 1999.                                                  //
  26 //                                                                           //
  27 ///////////////////////////////////////////////////////////////////////////////
  28
  29 #include <Riostream.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <TLorentzVector.h>
  33 #include <TMath.h>
  34 #include <TSystem.h>
  35 #include <TVirtualMC.h>
  36 #include <TGeoMatrix.h>
  37
  38 #include "AliRun.h"
  39 #include "AliITSgeom.h"
  40 #include "AliITSgeomSDD.h"
  41 #include "AliITSgeomSPD.h"
  42 #include "AliITSgeomSSD.h"
  43 #include "AliITShit.h"
  44 #include "AliITSvtest.h"
  45 #include "AliRun.h"
  46 #include "AliMC.h"
  47
  48 ClassImp(AliITSvtest)
  49
  50 //_____________________________________________________________________________
  51 AliITSvtest::AliITSvtest() {
  52     // Standard constructor for the ITS
  53     Int_t i;
  54
  55     fIdN    = 0;
  56     fIdName = 0;
  57     fIdSens = 0;
  58     SetEUCLID(kFALSE);
  59     fGeomDetOut   = kFALSE; // Don't write .det file
  60     fGeomDetIn    = kTRUE; // Read .det file
  61     fMajorVersion = IsVersion();
  62     fMinorVersion = -1;
  63     for(i=0;i<60;i++) fRead[i] = '\0';
  64     for(i=0;i<60;i++) fWrite[i] = '\0';
  65     for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
  66 }
  67 //_____________________________________________________________________________
  68 AliITSvtest::~AliITSvtest() {
  69     // Standard destructor for the ITS
  70 }
  71 //_____________________________________________________________________________
  72 AliITSvtest::AliITSvtest(const char *fileeuc,const char *filetme,
  73                          const char *name, const char *title)
  74     : AliITS(name, title){
  75     //
  76     // Standard constructor for the ITS
  77     //
  78     fIdN    = 6;
  79     fIdName    = new TString[fIdN];
  80     fIdName[0] = "ITS1";
  81     fIdName[1] = "ITS2";
  82     fIdName[2] = "ITS3";
  83     fIdName[3] = "ITS4";
  84     fIdName[4] = "ITS5";
  85     fIdName[5] = "ITS6";
  86     fIdSens    = new Int_t[fIdN];
  87     for (Int_t i=0;i<fIdN;i++) fIdSens[i] = 0;
  88     fMajorVersion = IsVersion();
  89     fMinorVersion = 1;
  90     SetEUCLID(kFALSE);
  91     fGeomDetOut   = kFALSE; // Don't write .det file
  92     fGeomDetIn    = kTRUE; // Read .det file
  93
  94     fEuclidMaterial = filetme;
  95     fEuclidGeometry = fileeuc;
  96     strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_PPR.det",60);
  97     strncpy(fRead,fEuclidGeomDet,60);
  98     strncpy(fWrite,fEuclidGeomDet,60);
  99 //  The .det file for the geometry must have the same name as fileeuc with
 100 //  .euc replaced by .det.
 101 }
 102
 103
 104 //_____________________________________________________________________________
 105 void AliITSvtest::CreateMaterials(){
 106   //
 107   // Read materials for the ITS
 108   //
 109     char *filtmp;
 110 //
 111   filtmp = gSystem->ExpandPathName(fEuclidMaterial.Data());
 112 //  FILE *file = fopen(fEuclidMaterial.Data(),"r");
 113   FILE *file = fopen(filtmp,"r");
 114   if(file) {
 115     fclose(file);
 116 //    ReadEuclidMedia(fEuclidMaterial.Data(),this);
 117     ReadEuclidMedia(filtmp);
 118   } else {
 119     Error("CreateMaterials"," THE MEDIA FILE %s DOES NOT EXIST !",
 120 //        fEuclidMaterial.Data());
 121           filtmp);
 122     exit(1);
 123   } // end if(file)
 124 }
 125
 126 //_____________________________________________________________________________
 127 void AliITSvtest::CreateGeometry(){
 128 //////////////////////////////////////////////////////////////////////
 129 ////////////////////////////////////////////////////////////////////////
 130 // Read geometry for the ITS
 131 //
 132     char topvol[5];
 133     char *filtmp;
 134 //
 135   filtmp = gSystem->ExpandPathName(fEuclidGeometry.Data());
 136   FILE *file = fopen(filtmp,"r");
 137   delete [] filtmp;
 138   if(file) {
 139     fclose(file);
 140     printf("Ready to read Euclid geometry file\n");
 141     ReadEuclid(fEuclidGeometry.Data(),topvol);
 142     printf("Read in euclid geometries\n");
 143   } else {
 144     Error("CreateGeometry"," THE GEOM FILE %s DOES NOT EXIST !",
 145           fEuclidGeometry.Data());
 146     exit(1);
 147   } // end if(file)
 148   //
 149   //---Place the ITS ghost volume ITSV in its mother volume (ALIC) and make it
 150   //     invisible
 151   //
 152   gMC->Gspos("ITSV",1,"ALIC",0,0,0,0,"ONLY");
 153   //
 154   //---Outputs the geometry tree in the EUCLID/CAD format
 155
 156     if (fEuclidOut) {
 157       gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
 158     } // end if (fEuclidOut)
 159     cout <<"finished with euclid geometrys"<< endl;
 160 }
 161 //______________________________________________________________________
 162 void AliITSvtest::InitAliITSgeom(){
 163     //     Based on the geometry tree defined in Geant 3.21, this
 164     // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
 165     // sturture.
 166     // Inputs:
 167     //   none.
 168     // Outputs:
 169     //   none.
 170     // Return:
 171     //   none.
 172     const Int_t knlayers = 6;
 173     const Int_t kndeep = 3;
 174     const AliITSDetector idet[knlayers]={kSPD,kSPD,kSDD,kSDD,kSSD,kSSDp};
 175     const TString names[2][knlayers] = {
 176      {"/ALIC_1/ITSV_1/ITSD_1/IT12_1/I12A_%d/I10A_%d/I103_%d/I101_1/ITS1_1", // lay=1
 177       "/ALIC_1/ITSV_1/ITSD_1/IT12_1/I12A_%d/I20A_%d/I1D3_%d/I1D1_1/ITS2_1", // lay=2
 178       "/ALIC_1/ITSV_1/ITSD_1/IT34_1/I004_%d/I302_%d/ITS3_%d", // lay=3
 179       "/ALIC_1/ITSV_1/ITSD_1/IT34_1/I005_%d/I402_%d/ITS4_%d", // lay=4
 180       "/ALIC_1/ITSV_1/ITSD_1/IT56_1/I565_%d/I562_%d/ITS5_%d", // lay=5
 181       "/ALIC_1/ITSV_1/ITSD_1/IT56_1/I569_%d/I566_%d/ITS6_%d"},// lay=6
 182      {"/ALIC_1/ITSV_1/ITSD_1/IT12_1/I12B_%d/I10B_%d/I107_%d/I101_1/ITS1_1", // lay=1
 183       "/ALIC_1/ITSV_1/ITSD_1/IT12_1/I12B_%d/I20B_%d/I1D7_%d/I1D1_1/ITS2_1", // lay=2
 184       "/ALIC_1/ITSV_1/ITSD_1/IT34_1/I004_%d/I302_%d/ITS3_%d", // lay=3
 185       "/ALIC_1/ITSV_1/ITSD_1/IT34_1/I005_%d/I402_%d/ITS4_%d", // lay=4
 186       "/ALIC_1/ITSV_1/ITSD_1/IT56_1/I565_%d/I562_%d/ITS5_%d", // lay=5
 187       "/ALIC_1/ITSV_1/ITSD_1/IT56_1/I569_%d/I566_%d/ITS6_%d"}
 188     };
 189     const Int_t itsGeomTreeCopys[knlayers][kndeep]= {{10, 2, 4},// lay=1
 190                                                      {10, 4, 4},// lay=2
 191                                                      {14, 6, 1},// lay=3
 192                                                      {22, 8, 1},// lay=4
 193                                                      {34,22, 1},// lay=5
 194                                                      {38,25, 1}};//lay=6
 195     Int_t       nlad[knlayers],ndet[knlayers];
 196     Int_t       mod,lay,lad=0,det=0,i,j,k,cp0,cp1,cp2;
 197     TString path,shapeName;
 198     TGeoHMatrix matrix;
 199     Double_t trans[3]={3*0.0},rot[10]={9*0.0,1.0};
 200     TArrayD shapePar;
 201     TArrayF shapeParF;
 202     Bool_t shapeDefined[4]={kFALSE,kFALSE,kFALSE,kFALSE};
 203
 204     AliDebug(1,"Reading Geometry transformation directly from Modler.");
 205     mod = 0;
 206     for(i=0;i<knlayers;i++){
 207         k = 1;
 208         for(j=0;j<kndeep;j++) if(itsGeomTreeCopys[i][j]!=0)
 209             k *= TMath::Abs(itsGeomTreeCopys[i][j]);
 210         mod += k;
 211     } // end for i
 212
 213     SetITSgeom(0);
 214     nlad[0]=20;nlad[1]=40;nlad[2]=14;nlad[3]=22;nlad[4]=34;nlad[5]=38;
 215     ndet[0]= 4;ndet[1]= 4;ndet[2]= 6;ndet[3]= 8;ndet[4]=22;ndet[5]=25;
 216     AliITSgeom* geom = new AliITSgeom(0,6,nlad,ndet,mod);
 217     SetITSgeom(geom);
 218     mod = 0;
 219     for(lay=1;lay<=knlayers;lay++){
 220         for(cp0=1;cp0<=itsGeomTreeCopys[lay-1][0];cp0++){
 221             for(cp1=1;cp1<=itsGeomTreeCopys[lay-1][1];cp1++){
 222                 for(cp2=1;cp2<=itsGeomTreeCopys[lay-1][2];cp2++){
 223                     path.Form(names[fMinorVersion-1][lay-1].Data(),
 224                               cp0,cp1,cp2);
 225                     switch (lay){
 226                     case 1:{
 227                         det = cp2;
 228                         lad = cp1+2*(cp0-1);
 229                     }break;
 230                     case 2:{
 231                         det = cp2;
 232                         lad = cp1+4*(cp0-1);
 233                     } break;
 234                     case 3: case 4: case 5: case 6:{
 235                         det = cp1;
 236                         lad = cp0;
 237                     } break;
 238                     } // end switch
 239                          //AliInfo(Form("path=%s lay=%d lad=%d det=%d",
 240                          //             path.Data(),lay,lad,det));
 241                     gMC->GetTransformation(path.Data(),matrix);
 242                     gMC->GetShape(path.Data(),shapeName,shapePar);
 243                     shapeParF.Set(shapePar.GetSize());
 244                     for(i=0;i<shapePar.GetSize();i++) shapeParF[i]=shapePar[i];
 245                     geom->CreateMatrix(mod,lay,lad,det,idet[lay-1],trans,rot);
 246                     geom->SetTrans(mod,matrix.GetTranslation());
 247                     geom->SetRotMatrix(mod,matrix.GetRotationMatrix());
 248                     geom->GetGeomMatrix(mod)->SetPath(path.Data());
 249                     switch (lay){
 250                     case 1: case 2:
 251                         if(!shapeDefined[kSPD]){
 252                         geom->ReSetShape(kSPD,new AliITSgeomSPD425Short(
 253                                 shapeParF.GetSize(),shapeParF.GetArray()));
 254                         shapeDefined[kSPD] = kTRUE;
 255                     }break;
 256                     case 3: case 4:
 257                         if(!shapeDefined[kSDD]){
 258                         geom->ReSetShape(kSDD,new AliITSgeomSDD256(
 259                                 shapeParF.GetSize(),shapeParF.GetArray()));
 260                         shapeDefined[kSDD] = kTRUE;
 261                     }break;
 262                     case 5:
 263                         if(!shapeDefined[kSSD]){
 264                         geom->ReSetShape(kSSD,new AliITSgeomSSD75and275(
 265                                 shapeParF.GetSize(),shapeParF.GetArray()));
 266                         shapeDefined[kSSD] = kTRUE;
 267                     }break;
 268                     case 6:
 269                         if(!shapeDefined[kSSDp]){
 270                         geom->ReSetShape(kSSDp,new AliITSgeomSSD275and75(
 271                                 shapeParF.GetSize(),shapeParF.GetArray()));
 272                         shapeDefined[kSSDp] = kTRUE;
 273                     }break;
 274                     default:{
 275                     }break;
 276                     } // end switch
 277                     mod++;
 278                 } /// end for cp2
 279             } // end for cp1
 280         } // end for cp0
 281     } // end for lay
 282     return;
 283 }
 284 //_____________________________________________________________________________
 285 void AliITSvtest::Init(){
 286 ////////////////////////////////////////////////////////////////////////
 287 //     Initialise the ITS after it has been created.
 288 ////////////////////////////////////////////////////////////////////////
 289     Int_t i;
 290
 291     cout << endl;
 292     for(i=0;i<29;i++) cout << "*";cout << " ITSvtest_Init ";
 293     for(i=0;i<28;i++) cout << "*";cout << endl;
 294 //
 295     if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
 296     if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
 297     if(GetITSgeom()!=0) SetITSgeom(0x0);
 298     SetITSgeom(new AliITSgeom());
 299     if(fGeomDetIn) GetITSgeom()->ReadNewFile(fRead);
 300     if(!fGeomDetIn) this->InitAliITSgeom();
 301     if(fGeomDetOut) GetITSgeom()->WriteNewFile(fWrite);
 302     AliITS::Init();
 303 //
 304     for(i=0;i<72;i++) cout << "*";
 305     cout << endl;
 306 }
 307 //_____________________________________________________________________________
 308 void AliITSvtest::StepManager(){
 309   //
 310   // Called for every step in the ITS
 311   //
 312   Int_t          copy, id;
 313   Int_t          copy1,copy2;
 314   Float_t        hits[8];
 315   Int_t          vol[4];
 316   TLorentzVector position, momentum;
 317   TClonesArray   &lhits = *fHits;
 318   //
 319   // Track status
 320   vol[3] = 0;
 321   if(gMC->IsTrackInside())      vol[3] +=  1;
 322   if(gMC->IsTrackEntering())    vol[3] +=  2;
 323   if(gMC->IsTrackExiting())     vol[3] +=  4;
 324   if(gMC->IsTrackOut())         vol[3] +=  8;
 325   if(gMC->IsTrackDisappeared()) vol[3] += 16;
 326   if(gMC->IsTrackStop())        vol[3] += 32;
 327   if(gMC->IsTrackAlive())       vol[3] += 64;
 328   //
 329   // Fill hit structure.
 330   if(!(gMC->TrackCharge())) return;
 331   //
 332   // Only entering charged tracks
 333   if((id = gMC->CurrentVolID(copy)) == fIdSens[0]) {
 334       vol[0] = 1;
 335       id = gMC->CurrentVolOffID(0,copy);
 336       //detector copy in the ladder = 1<->4  (ITS1)
 337       vol[1] = copy;
 338       gMC->CurrentVolOffID(1,copy1);
 339       //ladder copy in the module   = 1<->2  (I186)
 340       gMC->CurrentVolOffID(2,copy2);
 341       //module copy in the layer    = 1<->10 (I132)
 342       vol[2] = copy1+(copy2-1)*2;//# of ladders in one module  = 2
 343   } else if(id == fIdSens[1]){
 344       vol[0] = 2;
 345       id = gMC->CurrentVolOffID(0,copy);
 346       //detector copy in the ladder = 1<->4  (ITS2)
 347       vol[1] = copy;
 348       gMC->CurrentVolOffID(1,copy1);
 349       //ladder copy in the module   = 1<->4  (I131)
 350       gMC->CurrentVolOffID(2,copy2);
 351       //module copy in the layer    = 1<->10 (I132)
 352       vol[2] = copy1+(copy2-1)*4;//# of ladders in one module  = 4
 353   } else if(id == fIdSens[2]){
 354       vol[0] = 3;
 355       id = gMC->CurrentVolOffID(1,copy);
 356       //detector copy in the ladder = 1<->5  (ITS3 is inside I314)
 357       vol[1] = copy;
 358       id = gMC->CurrentVolOffID(2,copy);
 359       //ladder copy in the layer    = 1<->12 (I316)
 360       vol[2] = copy;
 361   } else if(id == fIdSens[3]){
 362       vol[0] = 4;
 363       id = gMC->CurrentVolOffID(1,copy);
 364       //detector copy in the ladder = 1<->8  (ITS4 is inside I414)
 365       vol[1] = copy;
 366       id = gMC->CurrentVolOffID(2,copy);
 367       //ladder copy in the layer    = 1<->22 (I417)
 368       vol[2] = copy;
 369   }else if(id == fIdSens[4]){
 370       vol[0] = 5;
 371       id = gMC->CurrentVolOffID(1,copy);
 372       //detector copy in the ladder = 1<->23  (ITS5 is inside I562)
 373       vol[1] = copy;
 374       id = gMC->CurrentVolOffID(2,copy);
 375      //ladder copy in the layer    = 1<->34 (I565)
 376       vol[2] = copy;
 377   }else if(id == fIdSens[5]){
 378       vol[0] = 6;
 379       id = gMC->CurrentVolOffID(1,copy);
 380       //detector copy in the ladder = 1<->26  (ITS6 is inside I566)
 381       vol[1] = copy;
 382       id = gMC->CurrentVolOffID(2,copy);
 383       //ladder copy in the layer = 1<->38 (I569)
 384       vol[2] = copy;
 385   } else {
 386       return; // not an ITS volume?
 387   } // end if/else if (gMC->CurentVolID(copy) == fIdSens[i])
 388 //
 389   gMC->TrackPosition(position);
 390   gMC->TrackMomentum(momentum);
 391   hits[0]=position[0];
 392   hits[1]=position[1];
 393   hits[2]=position[2];
 394   hits[3]=momentum[0];
 395   hits[4]=momentum[1];
 396   hits[5]=momentum[2];
 397   hits[6]=gMC->Edep();
 398   hits[7]=gMC->TrackTime();
 399   // Fill hit structure with this new hit.
 400   new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);
 401   return;
 402 }
 403