ITS/AliITSvSPD02.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  *                                                                        *
   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  **************************************************************************/
  15
  16 /*
  17 $Log$
  18 Revision 1.1  2002/12/05 20:07:25  nilsen
  19 Adding new SPD 2002 test-beam geometry, with Config file (setup for testing,
  20 50 pions in one event and not 50 events with one pion).
  21
  22 */
  23 #include <Riostream.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <TMath.h>
  27 #include <TGeometry.h>
  28 #include <TNode.h>
  29 #include <TTUBE.h>
  30 #include <TTUBS.h>
  31 #include <TPCON.h>
  32 #include <TFile.h>    // only required for Tracking function?
  33 #include <TCanvas.h>
  34 #include <TObjArray.h>
  35 #include <TLorentzVector.h>
  36 #include <TObjString.h>
  37 #include <TClonesArray.h>
  38 #include <TBRIK.h>
  39 #include <TSystem.h>
  40
  41 #include "AliRun.h"
  42 #include "AliMagF.h"
  43 #include "AliConst.h"
  44 #include "AliITSGeant3Geometry.h"
  45 #include "AliTrackReference.h"
  46 #include "AliITShit.h"
  47 #include "AliITS.h"
  48 #include "AliITSvSPD02.h"
  49 #include "AliITSgeom.h"
  50 #include "AliITSgeomSPD.h"
  51 #include "AliITSgeomSDD.h"
  52 #include "AliITSgeomSSD.h"
  53 #include "AliITSDetType.h"
  54 #include "AliITSresponseSPD.h"
  55 #include "AliITSresponseSDD.h"
  56 #include "AliITSresponseSSD.h"
  57 #include "AliITSsegmentationSPD.h"
  58 #include "AliITSsegmentationSDD.h"
  59 #include "AliITSsegmentationSSD.h"
  60 #include "AliITSsimulationSPD.h"
  61 #include "AliITSsimulationSDD.h"
  62 #include "AliITSsimulationSSD.h"
  63 #include "AliITSClusterFinderSPD.h"
  64 #include "AliITSClusterFinderSDD.h"
  65 #include "AliITSClusterFinderSSD.h"
  66
  67
  68 ClassImp(AliITSvSPD02)
  69
  70 //______________________________________________________________________
  71 AliITSvSPD02::AliITSvSPD02() {
  72     ////////////////////////////////////////////////////////////////////////
  73     // Standard default constructor for the ITS SPD test beam 2002 version 1.
  74     // Inputs:
  75     //    none.
  76     // Outputs:
  77     //    none.
  78     // Return:
  79     //    A default created class.
  80     ////////////////////////////////////////////////////////////////////////
  81     Int_t i;
  82
  83     fIdN          = 0;
  84     fIdName       = 0;
  85     fIdSens       = 0;
  86     fEuclidOut    = kFALSE; // Don't write Euclide file
  87     fGeomDetOut   = kFALSE; // Don't write .det file
  88     fGeomDetIn    = kFALSE; // Don't Read .det file
  89     fMajorVersion = IsVersion();
  90     fMinorVersion = -1;
  91     for(i=0;i<60;i++) fRead[i] = '\0';
  92     for(i=0;i<60;i++) fWrite[i] = '\0';
  93     for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
  94 }
  95 //______________________________________________________________________
  96 AliITSvSPD02::AliITSvSPD02(const char *title) : AliITS("ITS", title){
  97     ////////////////////////////////////////////////////////////////////////
  98     //    Standard constructor for the ITS SPD testbeam 2002 version 1.
  99     // Inputs:
 100     //    const char *title    title for this ITS geometry.
 101     // Outputs:
 102     //    none.
 103     // Return:
 104     //    A standard created class.
 105     ////////////////////////////////////////////////////////////////////////
 106     Int_t i;
 107
 108     fIdN = 2;
 109     fIdName = new TString[fIdN];
 110     fIdName[0] = "IMBS";
 111     fIdName[1] = "ITST";
 112     fIdSens    = new Int_t[fIdN];
 113     for(i=0;i<fIdN;i++) fIdSens[i] = 0;
 114     fMajorVersion = IsVersion();
 115     fMinorVersion = 2;
 116     fEuclidOut    = kFALSE; // Don't write Euclide file
 117     fGeomDetOut   = kFALSE; // Don't write .det file
 118     fGeomDetIn    = kFALSE; // Don't Read .det file
 119     SetThicknessDet1();
 120     SetThicknessDet2();
 121     SetThicknessChip1();
 122     SetThicknessChip2();
 123
 124     fEuclidGeometry="$ALICE_ROOT/ITS/ITSgeometry_vSPD022.euc";
 125     strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_vSPD022.det",60);
 126     strncpy(fRead,fEuclidGeomDet,60);
 127     strncpy(fWrite,fEuclidGeomDet,60);
 128 }
 129 //______________________________________________________________________
 130 AliITSvSPD02::AliITSvSPD02(const AliITSvSPD02 &source){
 131     ////////////////////////////////////////////////////////////////////////
 132     //     Copy Constructor for ITS SPD test beam 2002 version 1.
 133     // This class is not to be copied. Function only dummy.
 134     // Inputs:
 135     //    const AliITSvSPD02 &source   The class to be copied
 136     // Outputs:
 137     //    none.
 138     // Return:
 139     //    A warning message.
 140     ////////////////////////////////////////////////////////////////////////
 141     if(&source == this) return;
 142     Warning("Copy Constructor","Not allowed to copy AliITSvSPD02");
 143     return;
 144 }
 145 //______________________________________________________________________
 146 AliITSvSPD02& AliITSvSPD02::operator=(const AliITSvSPD02 &source){
 147     ////////////////////////////////////////////////////////////////////////
 148     //    Assignment operator for the ITS SPD test beam 2002 version 1.
 149     // This class is not to be copied. Function only dummy.
 150     // Inputs:
 151     //    const AliITSvSPD02 &source   The class to be copied
 152     // Outputs:
 153     //    none.
 154     // Return:
 155     //    A Warning message
 156     ////////////////////////////////////////////////////////////////////////
 157     if(&source == this) return *this;
 158     Warning("= operator","Not allowed to copy AliITSvSPD02");
 159     return *this;
 160 }
 161 //______________________________________________________________________
 162 AliITSvSPD02::~AliITSvSPD02() {
 163     ////////////////////////////////////////////////////////////////////////
 164     //    Standard destructor for the ITS SPD test beam 2002 version 1.
 165     // Inputs:
 166     //    none.
 167     // Outputs:
 168     //    none.
 169     // Return:
 170     //    none.
 171     ////////////////////////////////////////////////////////////////////////
 172 }
 173 //______________________________________________________________________
 174 void AliITSvSPD02::BuildGeometry(){
 175     ////////////////////////////////////////////////////////////////////////
 176     //    Geometry builder for the ITS SPD test beam 2002 version 1.
 177     //    ALIC    ALICE Mother Volume
 178     //     |- ITSV     ITS Mother Volume
 179     //         |- IDET       Detector under Test
 180     //         |   |- ITS0       SPD Si Chip
 181     //         |   |  |- ITST      SPD Sensitivve Volume
 182     //         |   |- IPC0 *5    Readout chip
 183     //         |- ITEL *4    SPD Telescope
 184     //             |- IMB0       SPD Si Chip
 185     //             |   |- IMBS     SPD Sensitive volume
 186     //             |- ICMB       Chip MiniBus.
 187     // Inputs:
 188     //    none.
 189     // Outputs:
 190     //    none.
 191     // Return:
 192     //    none.
 193     ////////////////////////////////////////////////////////////////////////
 194     // Get the top alice volume.
 195     TNode *ALIC = gAlice->GetGeometry()->GetNode("alice");
 196     ALIC->cd();
 197
 198     // Define ITS Mother Volume
 199     Float_t data[3];
 200     Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 201     Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 202     //Float_t yposition= 0.0;
 203     TRotMatrix *r0 = new TRotMatrix("ITSidrotm0","ITSidrotm0",
 204                                     90.0,0,0.0,0,90.0,270.0);
 205     data[0] = 10.0;
 206     data[1] = 50.0;
 207     data[2] = 100.0;
 208     TBRIK *ITSVshape = new TBRIK("ITSVshape","ITS Logical Mother Volume","Air",
 209                                  data[0],data[1],data[2]);
 210     TNode *ITSV = new TNode("ITSV","ITS Mother Volume",ITSVshape,
 211                             0.0,0.0,0.0,0,0);
 212     ITSV->cd(); // set ourselve into ITSV subvolume of ALIC
 213
 214     // SPD part of telescope (MiniBuS)
 215     data[0] = 0.705;
 216     data[1] = 0.5*ddettelescope;
 217     data[2] = 3.536;
 218     TBRIK *IMB0shape = new TBRIK("IMB0shape","SPD wafer","Si",
 219                                  data[0],data[1],data[2]);
 220     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 221     data[0] = detMiniBusX = 0.64;
 222     data[1] = detMiniBusY = 0.5*ddettelescope;
 223     data[2] = detMiniBusZ = 3.48;
 224     TBRIK *IMBSshape = new TBRIK("IMBSshape","SPD Sensitive volume","Si",
 225                                  data[0],data[1],data[2]);
 226     Float_t chipMiniBusX,chipMiniBusY,chipMiniBusZ;
 227     data[0] = chipMiniBusX = 0.793;
 228     data[1] = chipMiniBusY = 0.5*dchipMiniBus;
 229     data[2] = chipMiniBusZ = 0.68;
 230     TBRIK *ICMBshape = new TBRIK("ICMBshape","chip Minibus","Si",
 231                                  data[0],data[1],data[2]);
 232     data[0] = TMath::Max(detMiniBusX,chipMiniBusX);
 233     data[1] = detMiniBusY+chipMiniBusY;
 234     data[2] = TMath::Max(detMiniBusZ,chipMiniBusZ);
 235     TBRIK *ITELshape = new TBRIK("ITELshape","ITELshape","Air",
 236                                  data[0],data[1],data[2]);
 237
 238     // SPD under test
 239     Float_t spdX,spdY,spdZ,spdchipX,spdchipY,spdchipZ;
 240     data[0] = 0.705;
 241     data[1] = ddettest;
 242     data[2] = 3.536;
 243     TBRIK *ITS0shape = new TBRIK("ITS0shape","SPD wafer","Si",
 244                                  data[0],data[1],data[2]); // contains detector
 245     data[0] = spdX = 0.64;
 246     data[1] = spdY = ddettest;
 247     data[2] = spdZ = 3.48;
 248     TBRIK *ITSTshape = new TBRIK("ITSTshape","SPD sensitive volume","Si",
 249                                  data[0],data[1],data[2]);
 250     // ITS0 with no translation and unit rotation matrix.
 251     data[0] = spdchipX = 0.793;
 252     data[1] = spdchipY = dchiptest;
 253     data[2] = spdchipZ = 0.68;
 254     TBRIK *IPC0shape = new TBRIK("IPC0shape","Readout Chips","Si",
 255                                  data[0],data[1],data[2]); // chip under test
 256     data[0] = TMath::Max(spdchipX,spdX);
 257     data[1] = spdY+spdchipY;
 258     data[2] = TMath::Max(spdchipZ,spdZ);
 259     TBRIK *IDETshape = new TBRIK("IDETshape","Detector Under Test","Air",
 260                                  data[0],data[1],data[2]);
 261     // Place volumes in geometry
 262     Int_t i,j;
 263     char name[20],title[50];
 264     Double_t px=0.0,py=0.0,pz[4]={-38.0,0.0,0.0,0.0};
 265     pz[1] = pz[0]+2.0;
 266     pz[2] = pz[1]+38.0+spdY+spdchipY+34.5;
 267     pz[3] = pz[2]+2.0;
 268     TNode *ITEL[4],*ICMB[4],*IMB0[4],*IMBS[4];
 269     TNode *IDET = new TNode("IDET","Detector Under Test",IDETshape,
 270                             0.0,0.0,pz[1]+38.0,r0,0);
 271     IDET->cd();
 272     TNode *ITS0 = new TNode("ITS0","SPD Chip",ITS0shape,
 273                             0.0,IDETshape->GetDy()-spdY,0.0,0,0);
 274     TNode *IPC0[5];
 275     for(i=0;i<5;i++) { //place readout chips on the back of SPD chip under test
 276         sprintf(name,"IPC0%d",i);
 277         sprintf(title,"Readout chip #%d",i+1);
 278         j = i-2;
 279         IPC0[i] = new TNode(name,title,IPC0shape,
 280                             0.0,spdchipY-IDETshape->GetDy(),
 281                             j*2.0*spdchipZ+j*0.25*(spdZ-5.*spdchipZ),0,0);
 282     } // end for i
 283     ITS0->cd();
 284     TNode *ITST = new TNode("ITST","SPD sensitive volume",ITSTshape,
 285                             0.0,0.0,0.0,0,0);
 286     for(Int_t i=0;i<4;i++){
 287         ITSV->cd();
 288         sprintf(name,"ITEL%d",i);
 289         sprintf(title,"Test beam telescope element #%d",i+1);
 290         ITEL[i] = new TNode(name,title,ITELshape,px,py,pz[i],r0,0);
 291         ITEL[i]->cd();
 292         ICMB[i] = new TNode("ICMB","Chip MiniBus",ICMBshape,
 293                             0.0,-ITELshape->GetDy()+detMiniBusY,0.0,0,0);
 294         IMB0[i] = new TNode("IMB0","Chip MiniBus",IMB0shape,
 295                             0.0, ITELshape->GetDy()-detMiniBusY,0.0,0,0);
 296         IMB0[i]->cd();
 297         IMBS[i] = new TNode("IMBS","IMBS",IMBSshape,0.0,0.0,0.0,0,0);
 298         // place IMBS inside IMB0 with no translation and unit rotation matrix.
 299     } // end for i
 300     ALIC->cd();
 301     ITST->SetLineColor(kYellow);
 302     fNodes->Add(ITST);
 303     for(i=0;i<4;i++){
 304         IMBS[i]->SetLineColor(kGreen);
 305         fNodes->Add(IMBS[i]);
 306     } // end for i
 307 }
 308 //______________________________________________________________________
 309 void AliITSvSPD02::CreateGeometry(){
 310     ////////////////////////////////////////////////////////////////////////
 311     //  This routine defines and Creates the geometry for version 1 of the ITS.
 312     //    ALIC    ALICE Mother Volume
 313     //     |- ITSV     ITS Mother Volume
 314     //         |- IDET       Detector under Test
 315     //         |   |- ITS0       SPD Si Chip
 316     //         |   |  |- ITST      SPD Sensitivve Volume
 317     //         |   |- IPC0 *5    Readout chip
 318     //         |- ITEL *4    SPD Telescope
 319     //             |- IMB0       SPD Si Chip
 320     //             |   |- IMBS     SPD Sensitive volume
 321     //             |- ICMB       Chip MiniBus.
 322     // Inputs:
 323     //    none.
 324     // Outputs:
 325     //    none.
 326     // Return:
 327     //    none.
 328     ////////////////////////////////////////////////////////////////////////
 329     Float_t data[49];
 330     // Define media off-set
 331     Int_t *idtmed = fIdtmed->GetArray()+1; // array of media indexes
 332     Int_t idrotm[4]; // Array of rotation matrix indexes
 333     Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 334     Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 335     Float_t yposition= 0.0;
 336
 337     // Define Rotation-reflextion Matrixes needed
 338     // 0 is the unit matrix
 339     AliMatrix(idrotm[0], 90.0,0.0, 0.0,0.0, 90.0,270.0);
 340     data[0] = 10.0;
 341     data[1] = 50.0;
 342     data[2] = 100.0;
 343     gMC->Gsvolu("ITSV","BOX",idtmed[0],data,3);
 344     gMC->Gspos("ITSV",1,"ALIC",0.0,0.0,0.0,0,"ONLY");
 345
 346     //cout << "idtmed[0]=" << idtmed[0]<<endl;
 347     //cout << "idtmed[1]=" << idtmed[1]<<endl;
 348     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 349     // SPD part of telescope (MiniBuS)
 350     data[0] = detMiniBusX = 0.705;
 351     data[1] = detMiniBusY = 0.5*ddettelescope;
 352     data[2] = detMiniBusZ = 3.536;
 353     gMC->Gsvolu("IMB0", "BOX ", idtmed[1], data, 3);   // contains detector
 354     data[0] = 0.64;
 355     data[1] = 0.5*ddettelescope;
 356     data[2] = 3.48;
 357     gMC->Gsvolu("IMBS","BOX ",idtmed[1],data,3); // sensitive detecor volulme
 358     gMC->Gspos("IMBS",1,"IMB0",0.0,0.0,0.0,0,"ONLY"); // place IMBS inside
 359     // IMB0 with no translation and unit rotation matrix.
 360     Float_t chipMiniBusX,chipMiniBusY,chipMiniBusZ;
 361     data[0] = chipMiniBusX = 0.793;
 362     data[1] = chipMiniBusY = 0.5*dchipMiniBus;
 363     data[2] = chipMiniBusZ = 0.68;
 364     gMC->Gsvolu("ICMB","BOX ",idtmed[1],data, 3);   // chip Minibus
 365     data[0] = TMath::Max(detMiniBusX,chipMiniBusX);
 366     data[1] = detMiniBusY+chipMiniBusY;
 367     data[2] = TMath::Max(detMiniBusZ,chipMiniBusZ);
 368     gMC->Gsvolu("ITEL","BOX ",idtmed[0],data,3);
 369     gMC->Gspos("IMB0",1,"ITEL",0.0,data[1]-detMiniBusY,0.0,0,"ONLY");
 370     gMC->Gspos("ICMB",1,"ITEL",0.0,-data[1]+chipMiniBusY,0.0,0,"ONLY");
 371
 372     // SPD under test
 373     Float_t spdX,spdY,spdZ,spdchipX,spdchipY,spdchipZ;
 374     data[0] = spdX = 0.705;
 375     data[1] = spdY = 0.5*ddettest;
 376     data[2] = spdZ = 3.536;
 377     gMC->Gsvolu("ITS0", "BOX ", idtmed[1], data, 3);   // contains detector
 378     data[0] = 0.64;
 379     data[1] = 0.5*ddettest;
 380     data[2] = 3.48;
 381     gMC->Gsvolu("ITST","BOX ",idtmed[1],data,3);// sensitive detecor volume
 382     gMC->Gspos("ITST",1,"ITS0",0.0,0.0,0.0,0,"ONLY"); // place ITST inside
 383     // ITS0 with no translation and unit rotation matrix.
 384     data[0] = spdchipX = 0.793;
 385     data[1] = spdchipY = 0.5*dchiptest;
 386     data[2] = spdchipZ = 0.68;
 387     gMC->Gsvolu("IPC0", "BOX ", idtmed[1],data,3);   // chip under test
 388     data[0] = TMath::Max(spdchipX,spdX);
 389     data[1] = spdY+spdchipY;
 390     data[2] = TMath::Max(spdchipZ,spdZ);
 391     gMC->Gsvolu("IDET","BOX ",idtmed[0],data,3);
 392     gMC->Gspos("ITS0",1,"IDET",0.0,data[1]-spdY,0.0,0,"ONLY");
 393     for(Int_t i=-2;i<3;i++) gMC->Gspos("IPC0",i+3,"IDET",0.0,-data[1]+spdchipY,
 394               i*2.*spdchipZ+i*0.25*(spdZ-5.*spdchipZ),0,"ONLY");
 395
 396     // Positions detectors, Beam Axis Z, X to the right, Y up to the sky.
 397     Float_t p00X,p00Y,p00Z,p01X,p01Y,p01Z,p10X,p10Y,p10Z,p11X,p11Y,p11Z;
 398     p00X = 0.0;
 399     p00Y = 0.0;
 400     p00Z = -38.0;
 401     gMC->Gspos("ITEL",1,"ITSV",p00X,p00Y,p00Z,idrotm[0],"ONLY");
 402     p01X = 0.0;
 403     p01Y = 0.0;
 404     p01Z = p00Z+2.0;
 405     gMC->Gspos("ITEL",2,"ITSV",p01X,p01Y,p01Z,idrotm[0],"ONLY");
 406     Float_t pdetX,pdetY,pdetZ;
 407     pdetX = 0.0;
 408     pdetY = 0.0+yposition;
 409     pdetZ = p01Z+38.0;
 410     gMC->Gspos("IDET",1,"ITSV",pdetX,pdetY,pdetZ,idrotm[0],"ONLY");
 411     p10X = 0.0;
 412     p10Y = 0.0;
 413     p10Z = pdetZ + 34.5;
 414     gMC->Gspos("ITEL",3,"ITSV",p10X,p10Y,p10Z,idrotm[0],"ONLY");
 415     p11X = 0.0;
 416     p11Y = 0.0;
 417     p11Z = p10Z+2.0;
 418     gMC->Gspos("ITEL",4,"ITSV",p11X,p11Y,p11Z,idrotm[0],"ONLY");
 419 }
 420 //______________________________________________________________________
 421 void AliITSvSPD02::CreateMaterials(){
 422     ////////////////////////////////////////////////////////////////////////
 423     //
 424     // Create ITS SPD test beam materials
 425     //     This function defines the default materials used in the Geant
 426     // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
 427     // AliITSvSPD02.
 428     // In general it is automatically replaced by
 429     // the CreatMaterials routine defined in AliITSv?. Should the function
 430     // CreateMaterials not exist for the geometry version you are using this
 431     // one is used. See the definition found in AliITSv5 or the other routine
 432     // for a complete definition.
 433     //
 434     // Inputs:
 435     //    none.
 436     // Outputs:
 437     //    none.
 438     // Return:
 439     //    none.
 440     /////////////////////////////////////////////////////////////////////////
 441     Float_t tmaxfdSi = 0.1; // Degree
 442     Float_t stemaxSi = 0.0075; // cm
 443     Float_t deemaxSi = 0.1; // Fraction of particle's energy 0<deemax<=1
 444     Float_t epsilSi  = 1.0E-4;//
 445     Float_t stminSi  = 0.0; // cm "Default value used"
 446
 447     Float_t tmaxfdAir = 0.1; // Degree
 448     Float_t stemaxAir = .10000E+01; // cm
 449     Float_t deemaxAir = 0.1; // Fraction of particle's energy 0<deemax<=1
 450     Float_t epsilAir  = 1.0E-4;//
 451     Float_t stminAir  = 0.0; // cm "Default value used"
 452     Int_t   ifield = gAlice->Field()->Integ();
 453     Float_t fieldm = gAlice->Field()->Max();
 454
 455     AliMaterial(1,"AIR$",0.14610E+02,0.73000E+01,0.12050E-02,
 456                 0.30423E+05,0.99900E+03);
 457     AliMedium(1,"AIR$",1,0,ifield,fieldm,tmaxfdAir,stemaxAir,deemaxAir,
 458               epsilAir,stminAir);
 459
 460     AliMaterial(2,"SI$",0.28086E+02,0.14000E+02,0.23300E+01,
 461                 0.93600E+01,0.99900E+03);
 462     AliMedium(2,"SI$",2,0,ifield,fieldm,tmaxfdSi,stemaxSi,deemaxSi,
 463               epsilSi,stminSi);
 464 }
 465 //______________________________________________________________________
 466 void AliITSvSPD02::InitAliITSgeom(){
 467     //     Based on the geometry tree defined in Geant 3.21, this
 468     // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
 469     // sturture.
 470     // Inputs:
 471     //    none.
 472     // Outputs:
 473     //    none.
 474     // Return:
 475     //    none.
 476     if(strcmp(gMC->GetName(),"TGeant3")) {
 477         Error("InitAliITSgeom",
 478                 "Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
 479         return;
 480     } // end if
 481     cout << "Reading Geometry transformation directly from Geant 3." << endl;
 482     const Int_t nlayers = 2;
 483     const Int_t ndeep = 5;
 484     Int_t itsGeomTreeNames[nlayers][ndeep],lnam[20],lnum[20];
 485     Int_t nlad[nlayers],ndet[nlayers];
 486     Double_t t[3],r[10];
 487     Float_t  par[20],att[20];
 488     Int_t    npar,natt,idshape,imat,imed;
 489     AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
 490     Int_t mod,lay,lad,det,i,j,k;
 491     Char_t names[nlayers][ndeep][4];
 492     Int_t itsGeomTreeCopys[nlayers][ndeep];
 493     Char_t *namesA[nlayers][ndeep] = {
 494      {"ALIC","ITSV","ITEL","IMB0","IMBS"}, // lay=1
 495      {"ALIC","ITSV","IDET","ITS0","ITST"}};// Test SPD
 496     Int_t itsGeomTreeCopysA[nlayers][ndeep]= {{1,1,4,1,1},// lay=1
 497                                               {1,1,1,1,1}};//lay=2 TestSPD
 498     for(i=0;i<nlayers;i++)for(j=0;j<ndeep;j++){
 499         for(k=0;k<4;k++) names[i][j][k] = namesA[i][j][k];
 500         itsGeomTreeCopys[i][j] = itsGeomTreeCopysA[i][j];
 501     } // end for i,j
 502     // Sorry, but this is not very pritty code. It should be replaced
 503     // at some point with a version that can search through the geometry
 504     // tree its self.
 505     cout << "Reading Geometry informaton from Geant3 common blocks" << endl;
 506     for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
 507     for(i=0;i<nlayers;i++)for(j=0;j<ndeep;j++)
 508         itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
 509     mod = 0;
 510     for(i=0;i<nlayers;i++){
 511         k = 1;
 512         for(j=0;j<ndeep;j++) if(itsGeomTreeCopys[i][j]!=0)
 513             k *= TMath::Abs(itsGeomTreeCopys[i][j]);
 514         mod += k;
 515     } // end for i
 516
 517     if(fITSgeom!=0) delete fITSgeom;
 518     nlad[0]=20;nlad[1]=40;nlad[2]=14;nlad[3]=22;nlad[4]=34;nlad[5]=38;
 519     ndet[0]=4;ndet[1]=4;ndet[2]=6;ndet[3]=8;ndet[4]=22;ndet[5]=25;
 520     fITSgeom = new AliITSgeom(0,6,nlad,ndet,mod);
 521     mod = -1;
 522     for(lay=1;lay<=nlayers;lay++){
 523         for(j=0;j<ndeep;j++) lnam[j] = itsGeomTreeNames[lay-1][j];
 524         for(j=0;j<ndeep;j++) lnum[j] = itsGeomTreeCopys[lay-1][j];
 525         switch (lay){
 526         case 1: case 2: // layers 1 and 2 are a bit special
 527             lad = 0;
 528             for(j=1;j<=itsGeomTreeCopys[lay-1][4];j++){
 529                 lnum[4] = j;
 530                 for(k=1;k<=itsGeomTreeCopys[lay-1][5];k++){
 531                     lad++;
 532                     lnum[5] = k;
 533                     for(det=1;det<=itsGeomTreeCopys[lay-1][6];det++){
 534                         lnum[6] = det;
 535                         mod++;
 536                         ig->GetGeometry(ndeep,lnam,lnum,t,r,idshape,npar,natt,
 537                                         par,att,imat,imed);
 538                         fITSgeom->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
 539                         if(!(fITSgeom->IsShapeDefined((Int_t)kSPD)))
 540                              fITSgeom->ReSetShape(kSPD,
 541                                          new AliITSgeomSPD425Short(npar,par));
 542                     } // end for det
 543                 } // end for k
 544             } // end for j
 545             break;
 546         } // end switch
 547     } // end for lay
 548     return;
 549 }
 550 //______________________________________________________________________
 551 void AliITSvSPD02::Init(){
 552     ////////////////////////////////////////////////////////////////////////
 553     //     Initialise the ITS after it has been created.
 554     // Inputs:
 555     //    none.
 556     // Outputs:
 557     //    none.
 558     // Return:
 559     //    none.
 560     ////////////////////////////////////////////////////////////////////////
 561     Int_t i;
 562
 563     cout << endl;
 564     for(i=0;i<26;i++) cout << "*";
 565     cout << " ITSvSPD02" << fMinorVersion << "_Init ";
 566     for(i=0;i<25;i++) cout << "*";cout << endl;
 567 //
 568     if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
 569     if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
 570     if(fITSgeom!=0) delete fITSgeom;
 571     fITSgeom = new AliITSgeom();
 572     if(fGeomDetIn) fITSgeom->ReadNewFile(fRead);
 573     if(!fGeomDetIn) this->InitAliITSgeom();
 574     if(fGeomDetOut) fITSgeom->WriteNewFile(fWrite);
 575     AliITS::Init();
 576 //
 577     for(i=0;i<72;i++) cout << "*";
 578     cout << endl;
 579     fIDMother = gMC->VolId("ITSV"); // ITS Mother Volume ID.
 580 }
 581 //______________________________________________________________________
 582 void AliITSvSPD02::SetDefaults(){
 583     // sets the default segmentation, response, digit and raw cluster classes
 584     // Inputs:
 585     //    none.
 586     // Outputs:
 587     //    none.
 588     // Return:
 589     //    none.
 590     const Float_t kconv = 1.0e+04; // convert cm to microns
 591
 592     Info("SetDefaults","Setting up only SPD detector");
 593
 594     AliITSDetType *iDetType;
 595     AliITSgeomSPD  *s0;
 596     Int_t i;
 597     Float_t bx[256],bz[280];
 598
 599     //SPD
 600     iDetType=DetType(kSPD);
 601     s0 = (AliITSgeomSPD*) fITSgeom->GetShape(kSPD);// Get shape info. Do it this way for now.
 602     AliITSresponse *resp0=new AliITSresponseSPD();
 603     SetResponseModel(kSPD,resp0);
 604     AliITSsegmentationSPD *seg0=new AliITSsegmentationSPD(fITSgeom);
 605     seg0->SetDetSize(s0->GetDx()*2.*kconv, // base this on AliITSgeomSPD
 606                      s0->GetDz()*2.*kconv, // for now.
 607                      s0->GetDy()*2.*kconv); // x,z,y full width in microns.
 608     seg0->SetNPads(256,160);// Number of Bins in x and z
 609     for(i=000;i<256;i++) bx[i] =  50.0; // in x all are 50 microns.
 610     for(i=000;i<160;i++) bz[i] = 425.0; // most are 425 microns except below
 611     for(i=160;i<280;i++) bz[i] =   0.0; // Outside of detector.
 612     bz[ 31] = bz[ 32] = 625.0; // first chip boundry
 613     bz[ 63] = bz[ 64] = 625.0; // first chip boundry
 614     bz[ 95] = bz[ 96] = 625.0; // first chip boundry
 615     bz[127] = bz[128] = 625.0; // first chip boundry
 616     bz[160] = 425.0; // Set so that there is no zero pixel size for fNz.
 617     seg0->SetBinSize(bx,bz); // Based on AliITSgeomSPD for now.
 618     SetSegmentationModel(kSPD,seg0);
 619     // set digit and raw cluster classes to be used
 620     const char *kData0=(iDetType->GetResponseModel())->DataType();
 621     if (strstr(kData0,"real")) iDetType->ClassNames("AliITSdigit",
 622                                                     "AliITSRawClusterSPD");
 623     else iDetType->ClassNames("AliITSdigitSPD","AliITSRawClusterSPD");
 624 //    SetSimulationModel(kSPD,new AliITSsimulationSPD(seg0,resp0));
 625 //    iDetType->ReconstructionModel(new AliITSClusterFinderSPD());
 626
 627     if(kNTYPES>3){
 628         Warning("SetDefaults",
 629                 "Only the four basic detector types are initialised!");
 630     }// end if
 631     return;
 632 }
 633 //______________________________________________________________________
 634 void AliITSvSPD02::DrawModule(){
 635     ////////////////////////////////////////////////////////////////////////
 636     //     Draw a shaded view of the ITS SPD test beam version 1.
 637     // Inputs:
 638     //    none.
 639     // Outputs:
 640     //    none.
 641     // Return:
 642     //    none.
 643     ////////////////////////////////////////////////////////////////////////
 644     // Set everything unseen
 645     gMC->Gsatt("*", "seen", -1);
 646     // Set ALIC mother visible
 647     gMC->Gsatt("ALIC","SEEN",0);
 648     // Set ALIC ITS visible
 649     gMC->Gsatt("ITSV","SEEN",0);
 650     // Set ALIC Telescopes visible
 651     gMC->Gsatt("ITEL","SEEN",0);
 652     // Set ALIC detetcor visible
 653     gMC->Gsatt("IDET","SEEN",0);
 654     // Set Detector chip mother visible and drawn
 655     gMC->Gsatt("IPC0","SEEN",1);
 656     // Set Detector mother visible and drawn
 657     gMC->Gsatt("ITS0","SEEN",1);
 658     // Set minibus chip mother visible and drawn
 659     gMC->Gsatt("ICMB","SEEN",1);
 660     // Set minibus mother visible and drawn
 661     gMC->Gsatt("IMB0","SEEN",1);
 662 }
 663 //______________________________________________________________________
 664 void AliITSvSPD02::StepManager(){
 665     ////////////////////////////////////////////////////////////////////////
 666     //    Called for every step in the ITS SPD test beam, then calles the
 667     // AliITShit class  creator with the information to be recoreded about
 668     //  that hit.
 669     //     The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
 670     // printing of information to a file which can be used to create a .det
 671     // file read in by the routine CreateGeometry(). If set to 0 or any other
 672     // value except 1, the default behavior, then no such file is created nor
 673     // it the extra variables and the like used in the printing allocated.
 674     // Inputs:
 675     //    none.
 676     // Outputs:
 677     //    none.
 678     // Return:
 679     //    none.
 680     ////////////////////////////////////////////////////////////////////////
 681     Int_t         copy, id;
 682     TLorentzVector position, momentum;
 683     static TLorentzVector position0;
 684     static Int_t stat0=0;
 685     if((id=gMC->CurrentVolID(copy) == fIDMother)&&
 686        (gMC->IsTrackEntering()||gMC->IsTrackExiting())){
 687         copy = fTrackReferences->GetEntriesFast();
 688         TClonesArray &lTR = *fTrackReferences;
 689         // Fill TrackReference structure with this new TrackReference.
 690         new(lTR[copy]) AliTrackReference(gAlice->CurrentTrack(),gMC);
 691     } // if Outer ITS mother Volume
 692     if(!(this->IsActive())){
 693         return;
 694     } // end if !Active volume.
 695     Int_t   vol[5];
 696     TClonesArray &lhits = *fHits;
 697     //
 698     // Track status
 699     vol[3] = 0;
 700     vol[4] = 0;
 701     if(gMC->IsTrackInside())      vol[3] +=  1;
 702     if(gMC->IsTrackEntering())    vol[3] +=  2;
 703     if(gMC->IsTrackExiting())     vol[3] +=  4;
 704     if(gMC->IsTrackOut())         vol[3] +=  8;
 705     if(gMC->IsTrackDisappeared()) vol[3] += 16;
 706     if(gMC->IsTrackStop())        vol[3] += 32;
 707     if(gMC->IsTrackAlive())       vol[3] += 64;
 708     //
 709     // Fill hit structure.
 710     if(!(gMC->TrackCharge())) return;
 711     id = gMC->CurrentVolID(copy);
 712     if(id==fIdSens[0]){
 713         vol[0] = vol[1] = 1; // Layer, ladder
 714         id = gMC->CurrentVolOffID(2,copy);
 715         //detector copy in the ladder = 1<->4  (ITS1 < I101 < I103 < I10A)
 716         vol[2] = copy; // detector
 717     } else if(id == fIdSens[1]){
 718         vol[0] = 1; // layer
 719         vol[1] = 2; // ladder
 720         id = gMC->CurrentVolOffID(2,copy);
 721         //detector copy in the ladder = 1<->4  (ITS2 < I1D1 < I1D3 < I20A)
 722         vol[2] = copy;  // detector
 723     } else return; // end if
 724     //
 725     gMC->TrackPosition(position);
 726     gMC->TrackMomentum(momentum);
 727     vol[4] = stat0;
 728     if(gMC->IsTrackEntering()){
 729         position0 = position;
 730         stat0 = vol[3];
 731     } // end if IsEntering
 732     // Fill hit structure with this new hit only for non-entrerance hits.
 733     else new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,
 734                                         gMC->Edep(),gMC->TrackTime(),position,
 735                                         position0,momentum);
 736     //
 737     position0 = position;
 738     stat0 = vol[3];
 739
 740     return;
 741 }
 742