[u/mrichter/AliRoot.git] / ITS / AliITSvtest.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  Inner Traking System version Test                                        //
//  This class contains the base procedures for the Inner Tracking System    //
//                                                                           //
// Authors: R. Barbera, B. S. Nilsen.                                        //
// version  Test                                                             //
// Created October 16 1999.                                                  //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#include <Riostream.h>
#include <stdio.h>
#include <stdlib.h>
#include<TLorentzVector.h>
#include <TMath.h>
#include <TSystem.h>
#include <TVirtualMC.h>

#include "AliRun.h"
#include "AliITSGeant3Geometry.h"
#include "AliITSgeom.h"
#include "AliITSgeomSDD.h"
#include "AliITSgeomSPD.h"
#include "AliITSgeomSSD.h"
#include "AliITShit.h"
#include "AliITSvtest.h"
#include "AliRun.h"
#include "AliMC.h"

ClassImp(AliITSvtest)
 
//_____________________________________________________________________________
AliITSvtest::AliITSvtest() {
    // Standard constructor for the ITS
    Int_t i;

    fIdN    = 0;
    fIdName = 0;
    fIdSens = 0;
    SetEUCLID(kFALSE);
    fGeomDetOut   = kFALSE; // Don't write .det file
    fGeomDetIn    = kTRUE; // Read .det file
    fMajorVersion = IsVersion();
    fMinorVersion = -1;
    for(i=0;i<60;i++) fRead[i] = '\0';
    for(i=0;i<60;i++) fWrite[i] = '\0';
    for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
}
//____________________________________________________________________________
AliITSvtest::AliITSvtest(const AliITSvtest &source) : AliITS(source){
////////////////////////////////////////////////////////////////////////
//     Copy Constructor for ITS test version.
////////////////////////////////////////////////////////////////////////
    if(&source == this) return;
    Warning("Copy Constructor","Not allowed to copy AliITSvtest");
    return;
}
//_____________________________________________________________________________
AliITSvtest& AliITSvtest::operator=(const AliITSvtest &source){
////////////////////////////////////////////////////////////////////////
//    Assignment operator for the ITS version 1.
////////////////////////////////////////////////////////////////////////
	if(&source == this) return *this;
	Warning("= operator","Not allowed to copy AliITSvtest");
	return *this;
}
//_____________________________________________________________________________
AliITSvtest::~AliITSvtest() {
    // Standard destructor for the ITS
}
//_____________________________________________________________________________
AliITSvtest::AliITSvtest(const char *fileeuc,const char *filetme,
			 const char *name, const char *title) 
    : AliITS(name, title){
    //
    // Standard constructor for the ITS
    //
    fIdN    = 6;
    fIdName    = new TString[fIdN];
    fIdName[0] = "ITS1";
    fIdName[1] = "ITS2";
    fIdName[2] = "ITS3";
    fIdName[3] = "ITS4";
    fIdName[4] = "ITS5";
    fIdName[5] = "ITS6";
    fIdSens    = new Int_t[fIdN];
    for (Int_t i=0;i<fIdN;i++) fIdSens[i] = 0;
    fMajorVersion = IsVersion();
    fMinorVersion = 1;
    SetEUCLID(kFALSE);
    fGeomDetOut   = kFALSE; // Don't write .det file
    fGeomDetIn    = kTRUE; // Read .det file

    fEuclidMaterial = filetme;
    fEuclidGeometry = fileeuc;
    strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_PPR.det",60);
    strncpy(fRead,fEuclidGeomDet,60);
    strncpy(fWrite,fEuclidGeomDet,60);
//  The .det file for the geometry must have the same name as fileeuc with
//  .euc replaced by .det.
}

 
//_____________________________________________________________________________
void AliITSvtest::CreateMaterials(){
  //
  // Read materials for the ITS
  //
    char *filtmp;
//
  filtmp = gSystem->ExpandPathName(fEuclidMaterial.Data());
//  FILE *file = fopen(fEuclidMaterial.Data(),"r");
  FILE *file = fopen(filtmp,"r");
  if(file) {
    fclose(file);
//    ReadEuclidMedia(fEuclidMaterial.Data(),this);
    ReadEuclidMedia(filtmp);
  } else {
    Error("CreateMaterials"," THE MEDIA FILE %s DOES NOT EXIST !",
//	  fEuclidMaterial.Data());
	  filtmp);
    exit(1);
  } // end if(file)
}

//_____________________________________________________________________________
void AliITSvtest::CreateGeometry(){
//////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
// Read geometry for the ITS
//
    char topvol[5];
    char *filtmp;
//
  filtmp = gSystem->ExpandPathName(fEuclidGeometry.Data());
  FILE *file = fopen(filtmp,"r");
  delete [] filtmp;
  if(file) {
    fclose(file);
    printf("Ready to read Euclid geometry file\n");
    ReadEuclid(fEuclidGeometry.Data(),topvol);
    printf("Read in euclid geometries\n");
  } else {
    Error("CreateGeometry"," THE GEOM FILE %s DOES NOT EXIST !",
	  fEuclidGeometry.Data());
    exit(1);
  } // end if(file)
  //
  //---Place the ITS ghost volume ITSV in its mother volume (ALIC) and make it
  //     invisible
  //
  gMC->Gspos("ITSV",1,"ALIC",0,0,0,0,"ONLY");
  //
  //---Outputs the geometry tree in the EUCLID/CAD format
  
    if (fEuclidOut) {
      gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
    } // end if (fEuclidOut)
    cout <<"finished with euclid geometrys"<< endl;
}
//______________________________________________________________________
void AliITSvtest::InitAliITSgeom(){
//     Based on the geometry tree defined in Geant 3.21, this
// routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
// sturture.
//    if(gMC->IsA()!=TGeant3::Class()) {
  if(strcmp(gMC->GetName(),"TGeant3")) {
	Error("InitAliITSgeom",
		"Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
	return;
    } // end if
    cout << "Reading Geometry transformation directly from Geant 3." << endl;
    const Int_t kNlayers = 6;
    const Int_t kndeep = 9;
    Int_t itsGeomTreeNames[kNlayers][kndeep],lnam[20],lnum[20];
    Int_t nlad[kNlayers],ndet[kNlayers];
    Double_t t[3],r[10];
    Float_t  par[20],att[20];
    Int_t    npar,natt,idshape,imat,imed;
    AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
    Int_t mod,lay,lad,det,i,j,k;
    const char *names[kNlayers][kndeep] = {
     {"ALIC","ITSV","ITSD","IT12","I12B","I10B","I107","I101","ITS1"}, // lay=1
     {"ALIC","ITSV","ITSD","IT12","I12B","I20B","I1D7","I1D1","ITS2"}, // lay=2
     {"ALIC","ITSV","ITSD","IT34","I004","I302","ITS3","    ","    "}, // lay=3
     {"ALIC","ITSV","ITSD","IT34","I005","I402","ITS4","    ","    "}, // lay=4
     {"ALIC","ITSV","ITSD","IT56","I565","I562","ITS5","    ","    "}, // lay=5
     {"ALIC","ITSV","ITSD","IT56","I569","I566","ITS6","    ","    "}};// lay=6
    Int_t itsGeomTreeCopys[kNlayers][kndeep] = {{1,1,1,1,10, 2, 4, 1, 1},// lay=1
					      {1,1,1,1,10, 4, 4, 1, 1},// lay=2
					      {1,1,1,1,14, 6, 1, 0, 0},// lay=3
					      {1,1,1,1,22, 8, 1, 0, 0},// lay=4
					      {1,1,1,1,34,22, 1, 0, 0},// lay=5
					      {1,1,1,1,38,25, 1, 0, 0}};//lay=6

    // Sorry, but this is not very pritty code. It should be replaced
    // at some point with a version that can search through the geometry
    // tree its self.
    cout << "Reading Geometry informaton from Geant3 common blocks" << endl;
    for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
    for(i=0;i<kNlayers;i++)for(j=0;j<kndeep;j++)
        strncpy((char*) &itsGeomTreeNames[i][j],names[i][j],4); 
    //	itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
    mod = 0;
    for(i=0;i<kNlayers;i++){
	k = 1;
	for(j=0;j<kndeep;j++) if(itsGeomTreeCopys[i][j]!=0)
	    k *= TMath::Abs(itsGeomTreeCopys[i][j]);
	mod += k;
    } // end for i

    if(GetITSgeom()!=0) SetITSgeom(0x0);
    nlad[0]=20;nlad[1]=40;nlad[2]=14;nlad[3]=22;nlad[4]=34;nlad[5]=38;
    ndet[0]=4;ndet[1]=4;ndet[2]=6;ndet[3]=8;ndet[4]=22;ndet[5]=25;
    SetITSgeom(new AliITSgeom(0,6,nlad,ndet,mod));
    mod = -1;
    for(lay=1;lay<=kNlayers;lay++){
	for(j=0;j<kndeep;j++) lnam[j] = itsGeomTreeNames[lay-1][j];
	for(j=0;j<kndeep;j++) lnum[j] = itsGeomTreeCopys[lay-1][j];
	switch (lay){
	case 1: case 2: // layers 1 and 2 are a bit special
	    lad = 0;
	    for(j=1;j<=itsGeomTreeCopys[lay-1][4];j++){
		lnum[4] = j;
		for(k=1;k<=itsGeomTreeCopys[lay-1][5];k++){
		    lad++;
		    lnum[5] = k;
		    for(det=1;det<=itsGeomTreeCopys[lay-1][6];det++){
			lnum[6] = det;
			mod++;
			ig->GetGeometry(kndeep,lnam,lnum,t,r,idshape,npar,natt,
					par,att,imat,imed);
			GetITSgeom()->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
			if(!(GetITSgeom()->IsShapeDefined((Int_t)kSPD)))
			    if(fMinorVersion==1){
                             GetITSgeom()->ReSetShape(kSPD,
						  new AliITSgeomSPD425Short());
			    } else if(fMinorVersion==2)
                             GetITSgeom()->ReSetShape(kSPD,
						  new AliITSgeomSPD425Short());
		    } // end for det
		} // end for k
            } // end for j
	    break;
	case 3: case 4: case 5: case 6: // layers 3-6
	    lnum[6] = 1;
	    for(lad=1;lad<=itsGeomTreeCopys[lay-1][4];lad++){
		lnum[4] = lad;
		for(det=1;det<=itsGeomTreeCopys[lay-1][5];det++){
		    lnum[5] = det;
		    mod++;
		    ig->GetGeometry(7,lnam,lnum,t,r,idshape,npar,natt,
				    par,att,imat,imed);
		    switch (lay){
		    case 3: case 4:
			GetITSgeom()->CreatMatrix(mod,lay,lad,det,kSDD,t,r);
			if(!(GetITSgeom()->IsShapeDefined(kSDD))) 
			    GetITSgeom()->ReSetShape(kSDD,new AliITSgeomSDD256());
			    break;
			case 5:
			    GetITSgeom()->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
			    if(!(GetITSgeom()->IsShapeDefined(kSSD))) 
				GetITSgeom()->ReSetShape(kSSD,new AliITSgeomSSD275and75());
			    break;
			case 6:
			    GetITSgeom()->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
			    if(!(GetITSgeom()->IsShapeDefined(kSSD))) 
				GetITSgeom()->ReSetShape(kSSD,new AliITSgeomSSD75and275());
			    break;
			} // end switch
		} // end for det
	    } // end for lad
	    break;
	} // end switch
    } // end for lay
    return;
}
//_____________________________________________________________________________
void AliITSvtest::Init(){
////////////////////////////////////////////////////////////////////////
//     Initialise the ITS after it has been created.
////////////////////////////////////////////////////////////////////////
    Int_t i;

    cout << endl;
    for(i=0;i<29;i++) cout << "*";cout << " ITSvtest_Init ";
    for(i=0;i<28;i++) cout << "*";cout << endl;
//
    if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
    if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
    if(GetITSgeom()!=0) SetITSgeom(0x0);
    SetITSgeom(new AliITSgeom());
    if(fGeomDetIn) GetITSgeom()->ReadNewFile(fRead);
    if(!fGeomDetIn) this->InitAliITSgeom();
    if(fGeomDetOut) GetITSgeom()->WriteNewFile(fWrite);
    AliITS::Init();
//
    for(i=0;i<72;i++) cout << "*";
    cout << endl;
}
//_____________________________________________________________________________
void AliITSvtest::StepManager(){
  //
  // Called for every step in the ITS
  //
  Int_t          copy, id;
  Int_t          copy1,copy2;
  Float_t        hits[8];
  Int_t          vol[4];
  TLorentzVector position, momentum;
  TClonesArray   &lhits = *fHits;
  //
  // Track status
  vol[3] = 0;
  if(gMC->IsTrackInside())      vol[3] +=  1;
  if(gMC->IsTrackEntering())    vol[3] +=  2;
  if(gMC->IsTrackExiting())     vol[3] +=  4;
  if(gMC->IsTrackOut())         vol[3] +=  8;
  if(gMC->IsTrackDisappeared()) vol[3] += 16;
  if(gMC->IsTrackStop())        vol[3] += 32;
  if(gMC->IsTrackAlive())       vol[3] += 64;
  //
  // Fill hit structure.
  if(!(gMC->TrackCharge())) return;
  //
  // Only entering charged tracks
  if((id = gMC->CurrentVolID(copy)) == fIdSens[0]) {
      vol[0] = 1;
      id = gMC->CurrentVolOffID(0,copy);
      //detector copy in the ladder = 1<->4  (ITS1)
      vol[1] = copy;
      gMC->CurrentVolOffID(1,copy1);
      //ladder copy in the module   = 1<->2  (I186)
      gMC->CurrentVolOffID(2,copy2);
      //module copy in the layer    = 1<->10 (I132)
      vol[2] = copy1+(copy2-1)*2;//# of ladders in one module  = 2
  } else if(id == fIdSens[1]){
      vol[0] = 2;
      id = gMC->CurrentVolOffID(0,copy);
      //detector copy in the ladder = 1<->4  (ITS2)
      vol[1] = copy;
      gMC->CurrentVolOffID(1,copy1);
      //ladder copy in the module   = 1<->4  (I131)
      gMC->CurrentVolOffID(2,copy2);
      //module copy in the layer    = 1<->10 (I132)
      vol[2] = copy1+(copy2-1)*4;//# of ladders in one module  = 4
  } else if(id == fIdSens[2]){
      vol[0] = 3;
      id = gMC->CurrentVolOffID(1,copy);
      //detector copy in the ladder = 1<->5  (ITS3 is inside I314)
      vol[1] = copy;
      id = gMC->CurrentVolOffID(2,copy);
      //ladder copy in the layer    = 1<->12 (I316)
      vol[2] = copy;
  } else if(id == fIdSens[3]){
      vol[0] = 4;
      id = gMC->CurrentVolOffID(1,copy);
      //detector copy in the ladder = 1<->8  (ITS4 is inside I414)
      vol[1] = copy;
      id = gMC->CurrentVolOffID(2,copy);
      //ladder copy in the layer    = 1<->22 (I417)
      vol[2] = copy;
  }else if(id == fIdSens[4]){
      vol[0] = 5;
      id = gMC->CurrentVolOffID(1,copy);
      //detector copy in the ladder = 1<->23  (ITS5 is inside I562)
      vol[1] = copy;
      id = gMC->CurrentVolOffID(2,copy);
     //ladder copy in the layer    = 1<->34 (I565)
      vol[2] = copy;
  }else if(id == fIdSens[5]){
      vol[0] = 6;
      id = gMC->CurrentVolOffID(1,copy);
      //detector copy in the ladder = 1<->26  (ITS6 is inside I566)
      vol[1] = copy;
      id = gMC->CurrentVolOffID(2,copy);
      //ladder copy in the layer = 1<->38 (I569)
      vol[2] = copy;
  } else {
      return; // not an ITS volume?
  } // end if/else if (gMC->CurentVolID(copy) == fIdSens[i])
//
  gMC->TrackPosition(position);
  gMC->TrackMomentum(momentum);
  hits[0]=position[0];
  hits[1]=position[1];
  hits[2]=position[2];
  hits[3]=momentum[0];
  hits[4]=momentum[1];
  hits[5]=momentum[2];
  hits[6]=gMC->Edep();
  hits[7]=gMC->TrackTime();
  // Fill hit structure with this new hit.
  new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);
  return;
}
Commit	Line	Data
3fccfd9e	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
88cb7938	16	/* $Id$ */
3fccfd9e	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	///////////////////////////////////////////////////////////////////////////////
88cb7938	28
88cb7938	29	#include <Riostream.h>
3fccfd9e	30	#include <stdio.h>
3fccfd9e	31	#include <stdlib.h>
33da2552	32	#include<TLorentzVector.h>
3fccfd9e	33	#include <TMath.h>
3fccfd9e	34	#include <TSystem.h>
88cb7938	35	#include <TVirtualMC.h>
3fccfd9e	36
3fccfd9e	37	#include "AliRun.h"
bae7e562	38	#include "AliITSGeant3Geometry.h"
3fccfd9e	39	#include "AliITSgeom.h"
bae7e562	40	#include "AliITSgeomSDD.h"
88cb7938	41	#include "AliITSgeomSPD.h"
bae7e562	42	#include "AliITSgeomSSD.h"
88cb7938	43	#include "AliITShit.h"
	44	#include "AliITSvtest.h"
	45	#include "AliRun.h"
5d12ce38	46	#include "AliMC.h"
3fccfd9e	47
	48	ClassImp(AliITSvtest)
	49
	50	//_____________________________________________________________________________
	51	AliITSvtest::AliITSvtest() {
3fccfd9e	52	// Standard constructor for the ITS
bae7e562	53	Int_t i;
bae7e562	54
3fccfd9e	55	fIdN = 0;
	56	fIdName = 0;
	57	fIdSens = 0;
a8e8915c	58	SetEUCLID(kFALSE);
bae7e562	59	fGeomDetOut = kFALSE; // Don't write .det file
	60	fGeomDetIn = kTRUE; // Read .det file
	61	fMajorVersion = IsVersion();
3fccfd9e	62	fMinorVersion = -1;
bae7e562	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';
3fccfd9e	66	}
3fccfd9e	67	//____________________________________________________________________________
ac74f489	68	AliITSvtest::AliITSvtest(const AliITSvtest &source) : AliITS(source){
3fccfd9e	69	////////////////////////////////////////////////////////////////////////
	70	// Copy Constructor for ITS test version.
	71	////////////////////////////////////////////////////////////////////////
	72	if(&source == this) return;
bae7e562	73	Warning("Copy Constructor","Not allowed to copy AliITSvtest");
3fccfd9e	74	return;
	75	}
	76	//_____________________________________________________________________________
	77	AliITSvtest& AliITSvtest::operator=(const AliITSvtest &source){
	78	////////////////////////////////////////////////////////////////////////
	79	// Assignment operator for the ITS version 1.
	80	////////////////////////////////////////////////////////////////////////
	81	if(&source == this) return *this;
bae7e562	82	Warning("= operator","Not allowed to copy AliITSvtest");
3fccfd9e	83	return *this;
	84	}
	85	//_____________________________________________________________________________
	86	AliITSvtest::~AliITSvtest() {
3fccfd9e	87	// Standard destructor for the ITS
3fccfd9e	88	}
	89	//_____________________________________________________________________________
	90	AliITSvtest::AliITSvtest(const char fileeuc,const char filetme,
	91	const char name, const char title)
	92	: AliITS(name, title){
	93	//
	94	// Standard constructor for the ITS
	95	//
	96	fIdN = 6;
3fccfd9e	97	fIdName = new TString[fIdN];
	98	fIdName[0] = "ITS1";
	99	fIdName[1] = "ITS2";
	100	fIdName[2] = "ITS3";
	101	fIdName[3] = "ITS4";
	102	fIdName[4] = "ITS5";
	103	fIdName[5] = "ITS6";
	104	fIdSens = new Int_t[fIdN];
	105	for (Int_t i=0;i<fIdN;i++) fIdSens[i] = 0;
bae7e562	106	fMajorVersion = IsVersion();
3fccfd9e	107	fMinorVersion = 1;
a8e8915c	108	SetEUCLID(kFALSE);
bae7e562	109	fGeomDetOut = kFALSE; // Don't write .det file
bae7e562	110	fGeomDetIn = kTRUE; // Read .det file
3fccfd9e	111
	112	fEuclidMaterial = filetme;
	113	fEuclidGeometry = fileeuc;
bae7e562	114	strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_PPR.det",60);
	115	strncpy(fRead,fEuclidGeomDet,60);
	116	strncpy(fWrite,fEuclidGeomDet,60);
3fccfd9e	117	// The .det file for the geometry must have the same name as fileeuc with
	118	// .euc replaced by .det.
	119	}
	120
	121
	122	//_____________________________________________________________________________
	123	void AliITSvtest::CreateMaterials(){
	124	//
	125	// Read materials for the ITS
	126	//
	127	char *filtmp;
	128	//
	129	filtmp = gSystem->ExpandPathName(fEuclidMaterial.Data());
	130	// FILE *file = fopen(fEuclidMaterial.Data(),"r");
	131	FILE *file = fopen(filtmp,"r");
	132	if(file) {
	133	fclose(file);
	134	// ReadEuclidMedia(fEuclidMaterial.Data(),this);
	135	ReadEuclidMedia(filtmp);
	136	} else {
	137	Error("CreateMaterials"," THE MEDIA FILE %s DOES NOT EXIST !",
	138	// fEuclidMaterial.Data());
	139	filtmp);
	140	exit(1);
	141	} // end if(file)
	142	}
	143
	144	//_____________________________________________________________________________
	145	void AliITSvtest::CreateGeometry(){
	146	//////////////////////////////////////////////////////////////////////
	147	////////////////////////////////////////////////////////////////////////
	148	// Read geometry for the ITS
	149	//
3fccfd9e	150	char topvol[5];
	151	char *filtmp;
	152	//
	153	filtmp = gSystem->ExpandPathName(fEuclidGeometry.Data());
	154	FILE *file = fopen(filtmp,"r");
	155	delete [] filtmp;
	156	if(file) {
	157	fclose(file);
	158	printf("Ready to read Euclid geometry file\n");
	159	ReadEuclid(fEuclidGeometry.Data(),topvol);
	160	printf("Read in euclid geometries\n");
	161	} else {
	162	Error("CreateGeometry"," THE GEOM FILE %s DOES NOT EXIST !",
	163	fEuclidGeometry.Data());
	164	exit(1);
	165	} // end if(file)
	166	//
	167	//---Place the ITS ghost volume ITSV in its mother volume (ALIC) and make it
	168	// invisible
	169	//
	170	gMC->Gspos("ITSV",1,"ALIC",0,0,0,0,"ONLY");
	171	//
	172	//---Outputs the geometry tree in the EUCLID/CAD format
	173
	174	if (fEuclidOut) {
	175	gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
	176	} // end if (fEuclidOut)
bae7e562	177	cout <<"finished with euclid geometrys"<< endl;
3fccfd9e	178	}
bae7e562	179	//______________________________________________________________________
	180	void AliITSvtest::InitAliITSgeom(){
	181	// Based on the geometry tree defined in Geant 3.21, this
	182	// routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
	183	// sturture.
b9d0a01d	184	// if(gMC->IsA()!=TGeant3::Class()) {
b9d0a01d	185	if(strcmp(gMC->GetName(),"TGeant3")) {
bae7e562	186	Error("InitAliITSgeom",
	187	"Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
	188	return;
	189	} // end if
	190	cout << "Reading Geometry transformation directly from Geant 3." << endl;
a8e8915c	191	const Int_t kNlayers = 6;
	192	const Int_t kndeep = 9;
	193	Int_t itsGeomTreeNames[kNlayers][kndeep],lnam[20],lnum[20];
	194	Int_t nlad[kNlayers],ndet[kNlayers];
bae7e562	195	Double_t t[3],r[10];
	196	Float_t par[20],att[20];
	197	Int_t npar,natt,idshape,imat,imed;
	198	AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
	199	Int_t mod,lay,lad,det,i,j,k;
a8e8915c	200	const char *names[kNlayers][kndeep] = {
bae7e562	201	{"ALIC","ITSV","ITSD","IT12","I12B","I10B","I107","I101","ITS1"}, // lay=1
	202	{"ALIC","ITSV","ITSD","IT12","I12B","I20B","I1D7","I1D1","ITS2"}, // lay=2
	203	{"ALIC","ITSV","ITSD","IT34","I004","I302","ITS3"," "," "}, // lay=3
	204	{"ALIC","ITSV","ITSD","IT34","I005","I402","ITS4"," "," "}, // lay=4
	205	{"ALIC","ITSV","ITSD","IT56","I565","I562","ITS5"," "," "}, // lay=5
	206	{"ALIC","ITSV","ITSD","IT56","I569","I566","ITS6"," "," "}};// lay=6
a8e8915c	207	Int_t itsGeomTreeCopys[kNlayers][kndeep] = {{1,1,1,1,10, 2, 4, 1, 1},// lay=1
bae7e562	208	{1,1,1,1,10, 4, 4, 1, 1},// lay=2
	209	{1,1,1,1,14, 6, 1, 0, 0},// lay=3
	210	{1,1,1,1,22, 8, 1, 0, 0},// lay=4
	211	{1,1,1,1,34,22, 1, 0, 0},// lay=5
	212	{1,1,1,1,38,25, 1, 0, 0}};//lay=6
	213
	214	// Sorry, but this is not very pritty code. It should be replaced
	215	// at some point with a version that can search through the geometry
	216	// tree its self.
	217	cout << "Reading Geometry informaton from Geant3 common blocks" << endl;
	218	for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
a8e8915c	219	for(i=0;i<kNlayers;i++)for(j=0;j<kndeep;j++)
18f30131	220	strncpy((char*) &itsGeomTreeNames[i][j],names[i][j],4);
18f30131	221	// itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
bae7e562	222	mod = 0;
a8e8915c	223	for(i=0;i<kNlayers;i++){
bae7e562	224	k = 1;
a8e8915c	225	for(j=0;j<kndeep;j++) if(itsGeomTreeCopys[i][j]!=0)
bae7e562	226	k *= TMath::Abs(itsGeomTreeCopys[i][j]);
	227	mod += k;
	228	} // end for i
3fccfd9e	229
7d62fb64	230	if(GetITSgeom()!=0) SetITSgeom(0x0);
bae7e562	231	nlad[0]=20;nlad[1]=40;nlad[2]=14;nlad[3]=22;nlad[4]=34;nlad[5]=38;
bae7e562	232	ndet[0]=4;ndet[1]=4;ndet[2]=6;ndet[3]=8;ndet[4]=22;ndet[5]=25;
7d62fb64	233	SetITSgeom(new AliITSgeom(0,6,nlad,ndet,mod));
bae7e562	234	mod = -1;
a8e8915c	235	for(lay=1;lay<=kNlayers;lay++){
	236	for(j=0;j<kndeep;j++) lnam[j] = itsGeomTreeNames[lay-1][j];
	237	for(j=0;j<kndeep;j++) lnum[j] = itsGeomTreeCopys[lay-1][j];
bae7e562	238	switch (lay){
	239	case 1: case 2: // layers 1 and 2 are a bit special
	240	lad = 0;
	241	for(j=1;j<=itsGeomTreeCopys[lay-1][4];j++){
	242	lnum[4] = j;
	243	for(k=1;k<=itsGeomTreeCopys[lay-1][5];k++){
	244	lad++;
	245	lnum[5] = k;
	246	for(det=1;det<=itsGeomTreeCopys[lay-1][6];det++){
	247	lnum[6] = det;
	248	mod++;
a8e8915c	249	ig->GetGeometry(kndeep,lnam,lnum,t,r,idshape,npar,natt,
bae7e562	250	par,att,imat,imed);
7d62fb64	251	GetITSgeom()->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
7d62fb64	252	if(!(GetITSgeom()->IsShapeDefined((Int_t)kSPD)))
bae7e562	253	if(fMinorVersion==1){
7d62fb64	254	GetITSgeom()->ReSetShape(kSPD,
bae7e562	255	new AliITSgeomSPD425Short());
bae7e562	256	} else if(fMinorVersion==2)
7d62fb64	257	GetITSgeom()->ReSetShape(kSPD,
bae7e562	258	new AliITSgeomSPD425Short());
	259	} // end for det
	260	} // end for k
	261	} // end for j
	262	break;
	263	case 3: case 4: case 5: case 6: // layers 3-6
	264	lnum[6] = 1;
	265	for(lad=1;lad<=itsGeomTreeCopys[lay-1][4];lad++){
	266	lnum[4] = lad;
	267	for(det=1;det<=itsGeomTreeCopys[lay-1][5];det++){
	268	lnum[5] = det;
	269	mod++;
	270	ig->GetGeometry(7,lnam,lnum,t,r,idshape,npar,natt,
	271	par,att,imat,imed);
	272	switch (lay){
	273	case 3: case 4:
7d62fb64	274	GetITSgeom()->CreatMatrix(mod,lay,lad,det,kSDD,t,r);
	275	if(!(GetITSgeom()->IsShapeDefined(kSDD)))
	276	GetITSgeom()->ReSetShape(kSDD,new AliITSgeomSDD256());
bae7e562	277	break;
bae7e562	278	case 5:
7d62fb64	279	GetITSgeom()->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
	280	if(!(GetITSgeom()->IsShapeDefined(kSSD)))
	281	GetITSgeom()->ReSetShape(kSSD,new AliITSgeomSSD275and75());
bae7e562	282	break;
bae7e562	283	case 6:
7d62fb64	284	GetITSgeom()->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
	285	if(!(GetITSgeom()->IsShapeDefined(kSSD)))
	286	GetITSgeom()->ReSetShape(kSSD,new AliITSgeomSSD75and275());
bae7e562	287	break;
	288	} // end switch
	289	} // end for det
	290	} // end for lad
	291	break;
	292	} // end switch
	293	} // end for lay
	294	return;
	295	}
3fccfd9e	296	//_____________________________________________________________________________
3fccfd9e	297	void AliITSvtest::Init(){
bae7e562	298	////////////////////////////////////////////////////////////////////////
	299	// Initialise the ITS after it has been created.
	300	////////////////////////////////////////////////////////////////////////
	301	Int_t i;
	302
	303	cout << endl;
	304	for(i=0;i<29;i++) cout << "*";cout << " ITSvtest_Init ";
	305	for(i=0;i<28;i++) cout << "*";cout << endl;
	306	//
	307	if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
	308	if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
7d62fb64	309	if(GetITSgeom()!=0) SetITSgeom(0x0);
	310	SetITSgeom(new AliITSgeom());
	311	if(fGeomDetIn) GetITSgeom()->ReadNewFile(fRead);
bae7e562	312	if(!fGeomDetIn) this->InitAliITSgeom();
7d62fb64	313	if(fGeomDetOut) GetITSgeom()->WriteNewFile(fWrite);
3fccfd9e	314	AliITS::Init();
bae7e562	315	//
	316	for(i=0;i<72;i++) cout << "*";
	317	cout << endl;
	318	}
3fccfd9e	319	//_____________________________________________________________________________
	320	void AliITSvtest::StepManager(){
	321	//
	322	// Called for every step in the ITS
	323	//
	324	Int_t copy, id;
	325	Int_t copy1,copy2;
	326	Float_t hits[8];
	327	Int_t vol[4];
	328	TLorentzVector position, momentum;
	329	TClonesArray &lhits = *fHits;
	330	//
	331	// Track status
	332	vol[3] = 0;
	333	if(gMC->IsTrackInside()) vol[3] += 1;
	334	if(gMC->IsTrackEntering()) vol[3] += 2;
	335	if(gMC->IsTrackExiting()) vol[3] += 4;
	336	if(gMC->IsTrackOut()) vol[3] += 8;
	337	if(gMC->IsTrackDisappeared()) vol[3] += 16;
	338	if(gMC->IsTrackStop()) vol[3] += 32;
	339	if(gMC->IsTrackAlive()) vol[3] += 64;
	340	//
	341	// Fill hit structure.
	342	if(!(gMC->TrackCharge())) return;
	343	//
	344	// Only entering charged tracks
	345	if((id = gMC->CurrentVolID(copy)) == fIdSens[0]) {
	346	vol[0] = 1;
	347	id = gMC->CurrentVolOffID(0,copy);
	348	//detector copy in the ladder = 1<->4 (ITS1)
	349	vol[1] = copy;
	350	gMC->CurrentVolOffID(1,copy1);
	351	//ladder copy in the module = 1<->2 (I186)
	352	gMC->CurrentVolOffID(2,copy2);
	353	//module copy in the layer = 1<->10 (I132)
	354	vol[2] = copy1+(copy2-1)*2;//# of ladders in one module = 2
	355	} else if(id == fIdSens[1]){
	356	vol[0] = 2;
	357	id = gMC->CurrentVolOffID(0,copy);
	358	//detector copy in the ladder = 1<->4 (ITS2)
	359	vol[1] = copy;
	360	gMC->CurrentVolOffID(1,copy1);
	361	//ladder copy in the module = 1<->4 (I131)
	362	gMC->CurrentVolOffID(2,copy2);
	363	//module copy in the layer = 1<->10 (I132)
	364	vol[2] = copy1+(copy2-1)*4;//# of ladders in one module = 4
	365	} else if(id == fIdSens[2]){
	366	vol[0] = 3;
	367	id = gMC->CurrentVolOffID(1,copy);
	368	//detector copy in the ladder = 1<->5 (ITS3 is inside I314)
	369	vol[1] = copy;
	370	id = gMC->CurrentVolOffID(2,copy);
	371	//ladder copy in the layer = 1<->12 (I316)
	372	vol[2] = copy;
	373	} else if(id == fIdSens[3]){
	374	vol[0] = 4;
	375	id = gMC->CurrentVolOffID(1,copy);
	376	//detector copy in the ladder = 1<->8 (ITS4 is inside I414)
	377	vol[1] = copy;
	378	id = gMC->CurrentVolOffID(2,copy);
	379	//ladder copy in the layer = 1<->22 (I417)
	380	vol[2] = copy;
	381	}else if(id == fIdSens[4]){
	382	vol[0] = 5;
383	id = gMC->CurrentVolOffID(1,copy);
384	//detector copy in the ladder = 1<->23 (ITS5 is inside I562)
385	vol[1] = copy;
386	id = gMC->CurrentVolOffID(2,copy);
387	//ladder copy in the layer = 1<->34 (I565)
388	vol[2] = copy;
389	}else if(id == fIdSens[5]){
390	vol[0] = 6;
391	id = gMC->CurrentVolOffID(1,copy);
392	//detector copy in the ladder = 1<->26 (ITS6 is inside I566)
393	vol[1] = copy;
394	id = gMC->CurrentVolOffID(2,copy);
395	//ladder copy in the layer = 1<->38 (I569)
396	vol[2] = copy;
397	} else {
398	return; // not an ITS volume?
399	} // end if/else if (gMC->CurentVolID(copy) == fIdSens[i])
400	//
401	gMC->TrackPosition(position);
402	gMC->TrackMomentum(momentum);
403	hits[0]=position[0];
404	hits[1]=position[1];
405	hits[2]=position[2];
406	hits[3]=momentum[0];
407	hits[4]=momentum[1];
408	hits[5]=momentum[2];
409	hits[6]=gMC->Edep();
410	hits[7]=gMC->TrackTime();
411	// Fill hit structure with this new hit.
5d12ce38	412	new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);
3fccfd9e	413	return;
3fccfd9e	414	}
3fccfd9e	415