[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 <TMath.h>
#include <TNode.h>
#include <TObjArray.h>
#include <TObjString.h>
#include <TSystem.h>
#include <TTUBE.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"

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

    fIdN    = 0;
    fIdName = 0;
    fIdSens = 0;
    fEuclidOut    = kFALSE; // Don't write Euclide file
    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){
////////////////////////////////////////////////////////////////////////
//     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;
    fEuclidOut    = kFALSE; // Don't write Euclide file
    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 nlayers = 6;
    const Int_t ndeep = 9;
    Int_t itsGeomTreeNames[nlayers][ndeep],lnam[20],lnum[20];
    Int_t nlad[nlayers],ndet[nlayers];
    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;
    char *names[nlayers][ndeep] = {
     {"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[nlayers][ndeep] = {{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<nlayers;i++)for(j=0;j<ndeep;j++) 
	itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
    mod = 0;
    for(i=0;i<nlayers;i++){
	k = 1;
	for(j=0;j<ndeep;j++) if(itsGeomTreeCopys[i][j]!=0)
	    k *= TMath::Abs(itsGeomTreeCopys[i][j]);
	mod += k;
    } // end for i

    if(fITSgeom!=0) delete fITSgeom;
    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;
    fITSgeom = new AliITSgeom(0,6,nlad,ndet,mod);
    mod = -1;
    for(lay=1;lay<=nlayers;lay++){
	for(j=0;j<ndeep;j++) lnam[j] = itsGeomTreeNames[lay-1][j];
	for(j=0;j<ndeep;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(ndeep,lnam,lnum,t,r,idshape,npar,natt,
					par,att,imat,imed);
			fITSgeom->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
			if(!(fITSgeom->IsShapeDefined((Int_t)kSPD)))
			    if(fMinorVersion==1){
                             fITSgeom->ReSetShape(kSPD,
						  new AliITSgeomSPD425Short());
			    } else if(fMinorVersion==2)
                             fITSgeom->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:
			fITSgeom->CreatMatrix(mod,lay,lad,det,kSDD,t,r);
			if(!(fITSgeom->IsShapeDefined(kSDD))) 
			    fITSgeom->ReSetShape(kSDD,new AliITSgeomSDD256());
			    break;
			case 5:
			    fITSgeom->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
			    if(!(fITSgeom->IsShapeDefined(kSSD))) 
				fITSgeom->ReSetShape(kSSD,new AliITSgeomSSD275and75());
			    break;
			case 6:
			    fITSgeom->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
			    if(!(fITSgeom->IsShapeDefined(kSSD))) 
				fITSgeom->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(fITSgeom!=0) delete fITSgeom;
    fITSgeom = new AliITSgeom();
    if(fGeomDetIn) fITSgeom->ReadNewFile(fRead);
    if(!fGeomDetIn) this->InitAliITSgeom();
    if(fGeomDetOut) fITSgeom->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->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>
	31	#include <stdlib.h>
	32	#include <TMath.h>
3fccfd9e	33	#include <TNode.h>
3fccfd9e	34	#include <TObjArray.h>
3fccfd9e	35	#include <TObjString.h>
3fccfd9e	36	#include <TSystem.h>
88cb7938	37	#include <TTUBE.h>
88cb7938	38	#include <TVirtualMC.h>
3fccfd9e	39
3fccfd9e	40	#include "AliRun.h"
bae7e562	41	#include "AliITSGeant3Geometry.h"
3fccfd9e	42	#include "AliITSgeom.h"
bae7e562	43	#include "AliITSgeomSDD.h"
88cb7938	44	#include "AliITSgeomSPD.h"
bae7e562	45	#include "AliITSgeomSSD.h"
88cb7938	46	#include "AliITShit.h"
	47	#include "AliITSvtest.h"
	48	#include "AliRun.h"
3fccfd9e	49
	50	ClassImp(AliITSvtest)
	51
	52	//_____________________________________________________________________________
	53	AliITSvtest::AliITSvtest() {
3fccfd9e	54	// Standard constructor for the ITS
bae7e562	55	Int_t i;
bae7e562	56
3fccfd9e	57	fIdN = 0;
	58	fIdName = 0;
	59	fIdSens = 0;
bae7e562	60	fEuclidOut = kFALSE; // Don't write Euclide file
	61	fGeomDetOut = kFALSE; // Don't write .det file
	62	fGeomDetIn = kTRUE; // Read .det file
	63	fMajorVersion = IsVersion();
3fccfd9e	64	fMinorVersion = -1;
bae7e562	65	for(i=0;i<60;i++) fRead[i] = '\0';
	66	for(i=0;i<60;i++) fWrite[i] = '\0';
	67	for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
3fccfd9e	68	}
	69	//____________________________________________________________________________
	70	AliITSvtest::AliITSvtest(const AliITSvtest &source){
	71	////////////////////////////////////////////////////////////////////////
	72	// Copy Constructor for ITS test version.
	73	////////////////////////////////////////////////////////////////////////
	74	if(&source == this) return;
bae7e562	75	Warning("Copy Constructor","Not allowed to copy AliITSvtest");
3fccfd9e	76	return;
	77	}
	78	//_____________________________________________________________________________
	79	AliITSvtest& AliITSvtest::operator=(const AliITSvtest &source){
	80	////////////////////////////////////////////////////////////////////////
	81	// Assignment operator for the ITS version 1.
	82	////////////////////////////////////////////////////////////////////////
	83	if(&source == this) return *this;
bae7e562	84	Warning("= operator","Not allowed to copy AliITSvtest");
3fccfd9e	85	return *this;
	86	}
	87	//_____________________________________________________________________________
	88	AliITSvtest::~AliITSvtest() {
3fccfd9e	89	// Standard destructor for the ITS
3fccfd9e	90	}
	91	//_____________________________________________________________________________
	92	AliITSvtest::AliITSvtest(const char fileeuc,const char filetme,
	93	const char name, const char title)
	94	: AliITS(name, title){
	95	//
	96	// Standard constructor for the ITS
	97	//
	98	fIdN = 6;
3fccfd9e	99	fIdName = new TString[fIdN];
	100	fIdName[0] = "ITS1";
	101	fIdName[1] = "ITS2";
	102	fIdName[2] = "ITS3";
	103	fIdName[3] = "ITS4";
	104	fIdName[4] = "ITS5";
	105	fIdName[5] = "ITS6";
	106	fIdSens = new Int_t[fIdN];
	107	for (Int_t i=0;i<fIdN;i++) fIdSens[i] = 0;
bae7e562	108	fMajorVersion = IsVersion();
3fccfd9e	109	fMinorVersion = 1;
bae7e562	110	fEuclidOut = kFALSE; // Don't write Euclide file
	111	fGeomDetOut = kFALSE; // Don't write .det file
	112	fGeomDetIn = kTRUE; // Read .det file
3fccfd9e	113
	114	fEuclidMaterial = filetme;
	115	fEuclidGeometry = fileeuc;
bae7e562	116	strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_PPR.det",60);
	117	strncpy(fRead,fEuclidGeomDet,60);
	118	strncpy(fWrite,fEuclidGeomDet,60);
3fccfd9e	119	// The .det file for the geometry must have the same name as fileeuc with
	120	// .euc replaced by .det.
	121	}
	122
	123
	124	//_____________________________________________________________________________
	125	void AliITSvtest::CreateMaterials(){
	126	//
	127	// Read materials for the ITS
	128	//
	129	char *filtmp;
	130	//
	131	filtmp = gSystem->ExpandPathName(fEuclidMaterial.Data());
	132	// FILE *file = fopen(fEuclidMaterial.Data(),"r");
	133	FILE *file = fopen(filtmp,"r");
	134	if(file) {
	135	fclose(file);
	136	// ReadEuclidMedia(fEuclidMaterial.Data(),this);
	137	ReadEuclidMedia(filtmp);
	138	} else {
	139	Error("CreateMaterials"," THE MEDIA FILE %s DOES NOT EXIST !",
	140	// fEuclidMaterial.Data());
	141	filtmp);
	142	exit(1);
	143	} // end if(file)
	144	}
	145
	146	//_____________________________________________________________________________
	147	void AliITSvtest::CreateGeometry(){
	148	//////////////////////////////////////////////////////////////////////
	149	////////////////////////////////////////////////////////////////////////
	150	// Read geometry for the ITS
	151	//
3fccfd9e	152	char topvol[5];
	153	char *filtmp;
	154	//
	155	filtmp = gSystem->ExpandPathName(fEuclidGeometry.Data());
	156	FILE *file = fopen(filtmp,"r");
	157	delete [] filtmp;
	158	if(file) {
	159	fclose(file);
	160	printf("Ready to read Euclid geometry file\n");
	161	ReadEuclid(fEuclidGeometry.Data(),topvol);
	162	printf("Read in euclid geometries\n");
	163	} else {
	164	Error("CreateGeometry"," THE GEOM FILE %s DOES NOT EXIST !",
	165	fEuclidGeometry.Data());
	166	exit(1);
	167	} // end if(file)
	168	//
	169	//---Place the ITS ghost volume ITSV in its mother volume (ALIC) and make it
	170	// invisible
	171	//
	172	gMC->Gspos("ITSV",1,"ALIC",0,0,0,0,"ONLY");
	173	//
	174	//---Outputs the geometry tree in the EUCLID/CAD format
	175
	176	if (fEuclidOut) {
	177	gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
	178	} // end if (fEuclidOut)
bae7e562	179	cout <<"finished with euclid geometrys"<< endl;
3fccfd9e	180	}
bae7e562	181	//______________________________________________________________________
	182	void AliITSvtest::InitAliITSgeom(){
	183	// Based on the geometry tree defined in Geant 3.21, this
	184	// routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
	185	// sturture.
b9d0a01d	186	// if(gMC->IsA()!=TGeant3::Class()) {
b9d0a01d	187	if(strcmp(gMC->GetName(),"TGeant3")) {
bae7e562	188	Error("InitAliITSgeom",
	189	"Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
	190	return;
	191	} // end if
	192	cout << "Reading Geometry transformation directly from Geant 3." << endl;
	193	const Int_t nlayers = 6;
	194	const Int_t ndeep = 9;
	195	Int_t itsGeomTreeNames[nlayers][ndeep],lnam[20],lnum[20];
	196	Int_t nlad[nlayers],ndet[nlayers];
	197	Double_t t[3],r[10];
	198	Float_t par[20],att[20];
	199	Int_t npar,natt,idshape,imat,imed;
	200	AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
	201	Int_t mod,lay,lad,det,i,j,k;
	202	char *names[nlayers][ndeep] = {
	203	{"ALIC","ITSV","ITSD","IT12","I12B","I10B","I107","I101","ITS1"}, // lay=1
	204	{"ALIC","ITSV","ITSD","IT12","I12B","I20B","I1D7","I1D1","ITS2"}, // lay=2
	205	{"ALIC","ITSV","ITSD","IT34","I004","I302","ITS3"," "," "}, // lay=3
	206	{"ALIC","ITSV","ITSD","IT34","I005","I402","ITS4"," "," "}, // lay=4
	207	{"ALIC","ITSV","ITSD","IT56","I565","I562","ITS5"," "," "}, // lay=5
	208	{"ALIC","ITSV","ITSD","IT56","I569","I566","ITS6"," "," "}};// lay=6
	209	Int_t itsGeomTreeCopys[nlayers][ndeep] = {{1,1,1,1,10, 2, 4, 1, 1},// lay=1
	210	{1,1,1,1,10, 4, 4, 1, 1},// lay=2
	211	{1,1,1,1,14, 6, 1, 0, 0},// lay=3
	212	{1,1,1,1,22, 8, 1, 0, 0},// lay=4
	213	{1,1,1,1,34,22, 1, 0, 0},// lay=5
	214	{1,1,1,1,38,25, 1, 0, 0}};//lay=6
	215
	216	// Sorry, but this is not very pritty code. It should be replaced
	217	// at some point with a version that can search through the geometry
	218	// tree its self.
	219	cout << "Reading Geometry informaton from Geant3 common blocks" << endl;
	220	for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
	221	for(i=0;i<nlayers;i++)for(j=0;j<ndeep;j++)
	222	itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
	223	mod = 0;
	224	for(i=0;i<nlayers;i++){
	225	k = 1;
	226	for(j=0;j<ndeep;j++) if(itsGeomTreeCopys[i][j]!=0)
	227	k *= TMath::Abs(itsGeomTreeCopys[i][j]);
	228	mod += k;
	229	} // end for i
3fccfd9e	230
bae7e562	231	if(fITSgeom!=0) delete fITSgeom;
	232	nlad[0]=20;nlad[1]=40;nlad[2]=14;nlad[3]=22;nlad[4]=34;nlad[5]=38;
	233	ndet[0]=4;ndet[1]=4;ndet[2]=6;ndet[3]=8;ndet[4]=22;ndet[5]=25;
	234	fITSgeom = new AliITSgeom(0,6,nlad,ndet,mod);
	235	mod = -1;
	236	for(lay=1;lay<=nlayers;lay++){
	237	for(j=0;j<ndeep;j++) lnam[j] = itsGeomTreeNames[lay-1][j];
	238	for(j=0;j<ndeep;j++) lnum[j] = itsGeomTreeCopys[lay-1][j];
	239	switch (lay){
	240	case 1: case 2: // layers 1 and 2 are a bit special
	241	lad = 0;
	242	for(j=1;j<=itsGeomTreeCopys[lay-1][4];j++){
	243	lnum[4] = j;
	244	for(k=1;k<=itsGeomTreeCopys[lay-1][5];k++){
	245	lad++;
	246	lnum[5] = k;
	247	for(det=1;det<=itsGeomTreeCopys[lay-1][6];det++){
	248	lnum[6] = det;
	249	mod++;
	250	ig->GetGeometry(ndeep,lnam,lnum,t,r,idshape,npar,natt,
	251	par,att,imat,imed);
	252	fITSgeom->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
	253	if(!(fITSgeom->IsShapeDefined((Int_t)kSPD)))
	254	if(fMinorVersion==1){
	255	fITSgeom->ReSetShape(kSPD,
	256	new AliITSgeomSPD425Short());
	257	} else if(fMinorVersion==2)
	258	fITSgeom->ReSetShape(kSPD,
	259	new AliITSgeomSPD425Short());
	260	} // end for det
	261	} // end for k
	262	} // end for j
	263	break;
	264	case 3: case 4: case 5: case 6: // layers 3-6
	265	lnum[6] = 1;
	266	for(lad=1;lad<=itsGeomTreeCopys[lay-1][4];lad++){
	267	lnum[4] = lad;
	268	for(det=1;det<=itsGeomTreeCopys[lay-1][5];det++){
	269	lnum[5] = det;
	270	mod++;
	271	ig->GetGeometry(7,lnam,lnum,t,r,idshape,npar,natt,
	272	par,att,imat,imed);
	273	switch (lay){
	274	case 3: case 4:
	275	fITSgeom->CreatMatrix(mod,lay,lad,det,kSDD,t,r);
	276	if(!(fITSgeom->IsShapeDefined(kSDD)))
	277	fITSgeom->ReSetShape(kSDD,new AliITSgeomSDD256());
	278	break;
	279	case 5:
	280	fITSgeom->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
	281	if(!(fITSgeom->IsShapeDefined(kSSD)))
	282	fITSgeom->ReSetShape(kSSD,new AliITSgeomSSD275and75());
	283	break;
	284	case 6:
1570d46d	285	fITSgeom->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
	286	if(!(fITSgeom->IsShapeDefined(kSSD)))
	287	fITSgeom->ReSetShape(kSSD,new AliITSgeomSSD75and275());
bae7e562	288	break;
	289	} // end switch
	290	} // end for det
	291	} // end for lad
	292	break;
	293	} // end switch
	294	} // end for lay
	295	return;
	296	}
3fccfd9e	297	//_____________________________________________________________________________
3fccfd9e	298	void AliITSvtest::Init(){
bae7e562	299	////////////////////////////////////////////////////////////////////////
	300	// Initialise the ITS after it has been created.
	301	////////////////////////////////////////////////////////////////////////
	302	Int_t i;
	303
	304	cout << endl;
	305	for(i=0;i<29;i++) cout << "*";cout << " ITSvtest_Init ";
	306	for(i=0;i<28;i++) cout << "*";cout << endl;
	307	//
	308	if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
	309	if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
	310	if(fITSgeom!=0) delete fITSgeom;
	311	fITSgeom = new AliITSgeom();
	312	if(fGeomDetIn) fITSgeom->ReadNewFile(fRead);
	313	if(!fGeomDetIn) this->InitAliITSgeom();
	314	if(fGeomDetOut) fITSgeom->WriteNewFile(fWrite);
3fccfd9e	315	AliITS::Init();
bae7e562	316	//
	317	for(i=0;i<72;i++) cout << "*";
	318	cout << endl;
	319	}
3fccfd9e	320	//_____________________________________________________________________________
	321	void AliITSvtest::StepManager(){
	322	//
	323	// Called for every step in the ITS
	324	//
	325	Int_t copy, id;
	326	Int_t copy1,copy2;
	327	Float_t hits[8];
	328	Int_t vol[4];
	329	TLorentzVector position, momentum;
	330	TClonesArray &lhits = *fHits;
	331	//
	332	// Track status
	333	vol[3] = 0;
	334	if(gMC->IsTrackInside()) vol[3] += 1;
	335	if(gMC->IsTrackEntering()) vol[3] += 2;
	336	if(gMC->IsTrackExiting()) vol[3] += 4;
	337	if(gMC->IsTrackOut()) vol[3] += 8;
	338	if(gMC->IsTrackDisappeared()) vol[3] += 16;
	339	if(gMC->IsTrackStop()) vol[3] += 32;
	340	if(gMC->IsTrackAlive()) vol[3] += 64;
	341	//
	342	// Fill hit structure.
	343	if(!(gMC->TrackCharge())) return;
	344	//
	345	// Only entering charged tracks
	346	if((id = gMC->CurrentVolID(copy)) == fIdSens[0]) {
	347	vol[0] = 1;
	348	id = gMC->CurrentVolOffID(0,copy);
	349	//detector copy in the ladder = 1<->4 (ITS1)
	350	vol[1] = copy;
	351	gMC->CurrentVolOffID(1,copy1);
	352	//ladder copy in the module = 1<->2 (I186)
	353	gMC->CurrentVolOffID(2,copy2);
	354	//module copy in the layer = 1<->10 (I132)
	355	vol[2] = copy1+(copy2-1)*2;//# of ladders in one module = 2
	356	} else if(id == fIdSens[1]){
	357	vol[0] = 2;
	358	id = gMC->CurrentVolOffID(0,copy);
	359	//detector copy in the ladder = 1<->4 (ITS2)
	360	vol[1] = copy;
	361	gMC->CurrentVolOffID(1,copy1);
	362	//ladder copy in the module = 1<->4 (I131)
	363	gMC->CurrentVolOffID(2,copy2);
	364	//module copy in the layer = 1<->10 (I132)
	365	vol[2] = copy1+(copy2-1)*4;//# of ladders in one module = 4
	366	} else if(id == fIdSens[2]){
	367	vol[0] = 3;
	368	id = gMC->CurrentVolOffID(1,copy);
	369	//detector copy in the ladder = 1<->5 (ITS3 is inside I314)
	370	vol[1] = copy;
	371	id = gMC->CurrentVolOffID(2,copy);
	372	//ladder copy in the layer = 1<->12 (I316)
	373	vol[2] = copy;
	374	} else if(id == fIdSens[3]){
	375	vol[0] = 4;
	376	id = gMC->CurrentVolOffID(1,copy);
	377	//detector copy in the ladder = 1<->8 (ITS4 is inside I414)
	378	vol[1] = copy;
	379	id = gMC->CurrentVolOffID(2,copy);
	380	//ladder copy in the layer = 1<->22 (I417)
	381	vol[2] = copy;
	382	}else if(id == fIdSens[4]){
	383	vol[0] = 5;
384	id = gMC->CurrentVolOffID(1,copy);
385	//detector copy in the ladder = 1<->23 (ITS5 is inside I562)
386	vol[1] = copy;
387	id = gMC->CurrentVolOffID(2,copy);
388	//ladder copy in the layer = 1<->34 (I565)
389	vol[2] = copy;
390	}else if(id == fIdSens[5]){
391	vol[0] = 6;
392	id = gMC->CurrentVolOffID(1,copy);
393	//detector copy in the ladder = 1<->26 (ITS6 is inside I566)
394	vol[1] = copy;
395	id = gMC->CurrentVolOffID(2,copy);
396	//ladder copy in the layer = 1<->38 (I569)
397	vol[2] = copy;
398	} else {
399	return; // not an ITS volume?
400	} // end if/else if (gMC->CurentVolID(copy) == fIdSens[i])
401	//
402	gMC->TrackPosition(position);
403	gMC->TrackMomentum(momentum);
404	hits[0]=position[0];
405	hits[1]=position[1];
406	hits[2]=position[2];
407	hits[3]=momentum[0];
408	hits[4]=momentum[1];
409	hits[5]=momentum[2];
410	hits[6]=gMC->Edep();
411	hits[7]=gMC->TrackTime();
412	// Fill hit structure with this new hit.
642f15cf	413	new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->GetCurrentTrackNumber(),vol,hits);
3fccfd9e	414	return;
3fccfd9e	415	}
3fccfd9e	416