[u/mrichter/AliRoot.git] / FMD / AliFMD.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.                  *
 **************************************************************************/
 //////////////////////////////////////////////////////////////////////////////
//                                                                            //
//  Forward Multiplicity Detector based on Silicon plates                    //
//  This class contains the base procedures for the Forward Multiplicity     //
//  detector                                                                 //
//  Detector consists of 6 Si volumes covered pseudorapidity interval         //
//  from 1.6 to 6.0.                                                         //
//                                                                           //
//Begin_Html
/*
<img src="gif/AliFMDClass.gif">
</pre>
<br clear=left>
<font size=+2 color=red>
<p>The responsible person for this module is
<a href="mailto:Alla.Maevskaia@cern.ch">Alla Maevskaia</a>.
</font>
<pre>
*/
//End_Html
//                                                                           //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////


#define DEBUG
#include <TMath.h>
#include <TGeometry.h>
#include <TTUBE.h>
#include <TTree.h>
#include <TNode.h>
#include <TFile.h>

#include <TClonesArray.h>
#include <TLorentzVector.h>
#include "AliFMDv1.h"
#include "AliRun.h"
#include "AliDetector.h"
#include <Riostream.h>
#include "AliMagF.h"
#include "AliFMDhit.h"
#include "AliFMDdigit.h"
#include "AliFMDReconstruction.h"
#include "AliFMDReconstParticles.h"
#include <stdlib.h>

ClassImp (AliFMD)
  //_____________________________________________________________________________
AliFMD::AliFMD ():AliDetector ()
{
  //
  // Default constructor for class AliFMD
  //
  fIshunt = 0;
  fHits     = 0;
  fDigits   = 0;
  fSDigits  = 0;
  fReconParticles=0; 
}

//_____________________________________________________________________________
AliFMD::AliFMD (const char *name, const char *title):
AliDetector (name, title)
{
  //
  // Standard constructor for Forward Multiplicity Detector
  //

  //
  // Initialise Hit array
  fHits = new TClonesArray ("AliFMDhit", 1000);
  // Digits for each Si disk
  fDigits = new TClonesArray ("AliFMDdigit", 1000);
  fSDigits = new TClonesArray ("AliFMDdigit", 1000);
  fReconParticles=new TClonesArray("AliFMDReconstParticles",1000); 
  gAlice->AddHitList (fHits);

  fIshunt = 0;
  fIdSens1 = 0;
  fIdSens2 = 0;
  fIdSens3 = 0;
  fIdSens4 = 0;
  fIdSens5 = 0;
  //  fMerger = 0;
  SetMarkerColor (kRed);
}

//-----------------------------------------------------------------------------
AliFMD::~AliFMD ()
{
  if (fHits)
    {
      fHits->Delete ();
      delete fHits;
      fHits = 0;
    }
  if (fDigits)
    {
      fDigits->Delete ();
      delete fDigits;
      fDigits = 0;
    }
  if (fSDigits)
    {
      fSDigits->Delete ();
      delete fSDigits;
      fSDigits = 0;
    }
  if (fReconParticles)
    {
      fReconParticles->Delete ();
      delete fReconParticles;
      fReconParticles = 0;
    }

}

//_____________________________________________________________________________
void AliFMD::AddHit (Int_t track, Int_t * vol, Float_t * hits)
{
  //
  // Add a hit to the list
  //
  TClonesArray & lhits = *fHits;
  new (lhits[fNhits++]) AliFMDhit (fIshunt, track, vol, hits);
}

//_____________________________________________________________________________
void AliFMD::AddDigit (Int_t * digits)
{
  // add a real digit - as coming from data


  TClonesArray & ldigits = *fDigits;
  new (ldigits[fNdigits++]) AliFMDdigit (digits);

}
//_____________________________________________________________________________
void AliFMD::AddSDigit (Int_t * digits)
{
  // add a real digit - as coming from data

  TClonesArray & ldigits = *fSDigits;
  new (ldigits[fNdigits++]) AliFMDdigit (digits);

}
//_____________________________________________________________________________
void AliFMD::BuildGeometry ()
{
  //
  // Build simple ROOT TNode geometry for event display
  //
  TNode *node, *top;
  const int kColorFMD = 5;
  //
  top = gAlice->GetGeometry ()->GetNode ("alice");

  // FMD define the different volumes
  new TRotMatrix ("rot901", "rot901", 90, 0, 90, 90, 180, 0);

  new TTUBE ("S_FMD0", "FMD  volume 0", "void", 4.2, 17.2, 1.5);
  top->cd ();
  node = new TNode ("FMD0", "FMD0", "S_FMD0", 0, 0, 62.8, "");
  node->SetLineColor (kColorFMD);
  fNodes->Add (node);

  new TTUBE ("S_FMD1", "FMD  volume 1", "void", 15.4, 28.4, 1.5);
  top->cd ();
  node = new TNode ("FMD1", "FMD1", "S_FMD1", 0, 0, 75.2, "");
  node->SetLineColor (kColorFMD);
  fNodes->Add (node);

  new TTUBE ("S_FMD2", "FMD  volume 2", "void", 4.2, 17.2, 1.5);
  top->cd ();
  node = new TNode ("FMD2", "FMD2", "S_FMD2", 0, 0, -83.2, "");
  node->SetLineColor (kColorFMD);
  fNodes->Add (node);

  new TTUBE ("S_FMD3", "FMD  volume 3", "void", 15.4, 28.4, 1.5);
  top->cd ();
  node = new TNode ("FMD3", "FMD3", "S_FMD3", 0, 0, -75.2, "");
  node->SetLineColor (kColorFMD);
  fNodes->Add (node);

  new TTUBE ("S_FMD4", "FMD  volume 4", "void", 4.2, 17.2, 1.5);
  top->cd ();
  //  node = new TNode("FMD4","FMD4","S_FMD4",0,0,-270,"");
  node = new TNode ("FMD4", "FMD4", "S_FMD4", 0, 0, -340, "");
  node->SetLineColor (kColorFMD);
  fNodes->Add (node);
}

//_____________________________________________________________________________
Int_t AliFMD::DistanceToPrimitive (Int_t px, Int_t py)
{
  //
  // Calculate the distance from the mouse to the FMD on the screen
  // Dummy routine
  //
  return 9999;
}

//___________________________________________
void AliFMD::ResetHits ()
{
  // Reset number of clusters and the cluster array for this detector
  AliDetector::ResetHits ();
}

//____________________________________________
void AliFMD::ResetDigits ()
{
  //
  // Reset number of digits and the digits array for this detector
  AliDetector::ResetDigits ();
  //
}

//-------------------------------------------------------------------------

void  AliFMD::Init ()
{
  //
  // Initialis the FMD after it has been built
  Int_t i;
  //
  if (fDebug)
    {
      printf ("\n%s: ", ClassName ());
      for (i = 0; i < 35; i++)
	printf ("*");
      printf (" FMD_INIT ");
      for (i = 0; i < 35; i++)
	printf ("*");
      printf ("\n%s: ", ClassName ());
      //
      // Here the FMD initialisation code (if any!)
      for (i = 0; i < 80; i++)
	printf ("*");
      printf ("\n");
    }
  //
  //
    fIdSens1 = gMC->VolId ("GRN1");	//Si sensetive volume
    fIdSens2 = gMC->VolId ("GRN2");	//Si sensetive volume
    fIdSens3 = gMC->VolId ("GRN3");	//Si sensetive volume
    fIdSens4 = gMC->VolId ("GRN4");	//Si sensetive volume
    fIdSens5 = gMC->VolId ("GRN5");	//Si sensetive volume

}

//---------------------------------------------------------------------
void AliFMD::MakeBranch (Option_t * option, const char *file)
{
  // Create Tree branches for the FMD.
  char branchname[10];
  const Int_t kBufferSize = 16000;
  sprintf (branchname, "%s", GetName ());
  
  AliDetector::MakeBranch (option, file);
  const char *cD = strstr(option,"D");
  const char *cR = strstr(option,"R");
  const char *cS = strstr(option,"S");
  
  if (cS){

    MakeBranchInTree(gAlice->TreeS(), 
		     branchname,&fSDigits, 
    		     kBufferSize, file);
  }
  if (cD){

    MakeBranchInTree(gAlice->TreeD(), 
		     branchname,&fDigits, 
    		     kBufferSize, file);
    cout<<" tree "<<gAlice->TreeD()<<" "<<branchname<<" "<<&fDigits<<endl;
  }
  if (cR){
    MakeBranchInTree(gAlice->TreeR(), 
		     branchname,&fReconParticles,
    		     kBufferSize, file);
  }
  
}

//_____________________________________________________________________________
void AliFMD::SetTreeAddress ()
{
  // Set branch address for the Hits and Digits Tree.
  char branchname[30];
  AliDetector::SetTreeAddress ();

  TBranch *branch;
  TTree *treeD = gAlice->TreeD ();


  if (treeD)
    {
      if (fDigits)
	{
	  branch = treeD->GetBranch (branchname);
	  if (branch)
	    branch->SetAddress (&fDigits);
	}

    }
  if (fSDigits)
    //  fSDigits->Clear ();

  if (gAlice->TreeS () && fSDigits)
    {
      branch = gAlice->TreeS ()->GetBranch ("FMD");
      if (branch)
	branch->SetAddress (&fSDigits);
    }

  if (gAlice->TreeR() && fReconParticles) 
    {
      branch = gAlice->TreeR()->GetBranch("FMD"); 
      if (branch) branch->SetAddress(&fReconParticles) ;
    }   
}

//---------------------------------------------------------------------

void AliFMD::SetRingsSi1(Int_t ringsSi1)
{
  //  fRingsSi1=ringsSi1;
  fRingsSi1=768;
}
void AliFMD::SetSectorsSi1(Int_t sectorsSi1)
{
  fSectorsSi1=20;
}
void AliFMD::SetRingsSi2(Int_t ringsSi2)
{
  fRingsSi2=384;
}
void AliFMD::SetSectorsSi2(Int_t sectorsSi2)
{
  fSectorsSi2=40;
}

//---------------------------------------------------------------------
/*
void AliFMD::SDigits2Digits() 
{
  cout<<"AliFMD::SDigits2Digits"<<endl; 
    if (!fMerger) {
      fMerger = new AliFMDMerger();
    }
    
    fMerger ->SetRingsSi1(fRingsSi1);
    fMerger->SetRingsSi2(fRingsSi2);
    fMerger ->SetSectorsSi1(fSectorsSi1);
    fMerger ->SetSectorsSi2(fSectorsSi2);
     
    fMerger->Init();
    cout<<"AliFMD::SDigits2Digits Init"<<endl; 
    fMerger->Digitise();
    cout<<"AliFMD::SDigits2Digits Digitise() "<<endl; 
 

    }

    //---------------------------------------------------------------------
void   AliFMD::SetMerger(AliFMDMerger* merger)
{
// Set pointer to merger
    fMerger = merger;
}

AliFMDMerger*  AliFMD::Merger()
{
// Return pointer to merger
    return fMerger;
}
*/
//---------------------------------------------------------------------


void
AliFMD::Eta2Radius (Float_t eta, Float_t zDisk, Float_t * radius)
{
  Float_t expEta = TMath::Exp (-eta);
  Float_t theta = TMath::ATan (expEta);
  theta = 2. * theta;
  Float_t rad = zDisk * (TMath::Tan (theta));
  *radius = rad;

  if (fDebug)
    printf ("%s: eta %f radius %f\n", ClassName (), eta, rad);
}

//---------------------------------------------------------------------

void AliFMD::Hits2SDigits ()
{

  //#ifdef DEBUG
  cout<<"ALiFMD::Hits2SDigits> start...\n";
  //#endif
  
  char * fileSDigits = "FMD.SDigits.root";
  char * fileHeader = 0;
  AliFMDSDigitizer * sd = new AliFMDSDigitizer(fileHeader,fileSDigits) ;
  sd->SetRingsSi1(fRingsSi1);
  sd->SetRingsSi2(fRingsSi2);
  sd->SetSectorsSi1(fSectorsSi1);
  sd->SetSectorsSi2(fSectorsSi2);
  //  sd->SetEventNumber(fEvNrSig);
  sd->Exec("") ;
  
  delete sd ;
  
}
//-----------------------------------------------------------------------

void AliFMD::Digits2Reco()
{
  char * fileReconParticles=0;
  char * fileHeader=0;
  AliFMDReconstruction * reconstruction =
    new AliFMDReconstruction(fileHeader,fileReconParticles) ;
  reconstruction->Exec("");
  delete  reconstruction;
}
//-----------------------------------------------------------------------

void AliFMD::MakeBranchInTreeD(TTree *treeD, const char *file)
{
    //
    // Create TreeD branches for the MUON.
    //

    const Int_t kBufferSize = 4000;
    char branchname[20];
    

    sprintf(branchname,"%s",GetName());	
    if(treeD){
    MakeBranchInTree(treeD, 
		     branchname,&fDigits, 
    		     kBufferSize, file);
    }
}
Commit	Line	Data
	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	// Forward Multiplicity Detector based on Silicon plates //
	18	// This class contains the base procedures for the Forward Multiplicity //
	19	// detector //
	20	// Detector consists of 6 Si volumes covered pseudorapidity interval //
	21	// from 1.6 to 6.0. //
	22	// //
	23	//Begin_Html
	24	/*
	25	<img src="gif/AliFMDClass.gif">
	26	</pre>
	27	<br clear=left>
	28	<font size=+2 color=red>
	29	<p>The responsible person for this module is
	30	<a href="mailto:Alla.Maevskaia@cern.ch">Alla Maevskaia</a>.
	31	</font>
	32	<pre>
	33	*/
	34	//End_Html
	35	// //
	36	// //
	37	///////////////////////////////////////////////////////////////////////////////
	38
	39
	40	#define DEBUG
	41	#include <TMath.h>
	42	#include <TGeometry.h>
	43	#include <TTUBE.h>
	44	#include <TTree.h>
	45	#include <TNode.h>
	46	#include <TFile.h>
	47
	48	#include <TClonesArray.h>
	49	#include <TLorentzVector.h>
	50	#include "AliFMDv1.h"
	51	#include "AliRun.h"
	52	#include "AliDetector.h"
	53	#include <Riostream.h>
	54	#include "AliMagF.h"
	55	#include "AliFMDhit.h"
	56	#include "AliFMDdigit.h"
	57	#include "AliFMDReconstruction.h"
	58	#include "AliFMDReconstParticles.h"
	59	#include <stdlib.h>
	60
	61	ClassImp (AliFMD)
	62	//_____________________________________________________________________________
	63	AliFMD::AliFMD ():AliDetector ()
	64	{
	65	//
	66	// Default constructor for class AliFMD
	67	//
	68	fIshunt = 0;
	69	fHits = 0;
	70	fDigits = 0;
	71	fSDigits = 0;
	72	fReconParticles=0;
	73	}
	74
	75	//_____________________________________________________________________________
	76	AliFMD::AliFMD (const char name, const char title):
	77	AliDetector (name, title)
	78	{
	79	//
	80	// Standard constructor for Forward Multiplicity Detector
	81	//
	82
	83	//
	84	// Initialise Hit array
	85	fHits = new TClonesArray ("AliFMDhit", 1000);
	86	// Digits for each Si disk
	87	fDigits = new TClonesArray ("AliFMDdigit", 1000);
	88	fSDigits = new TClonesArray ("AliFMDdigit", 1000);
	89	fReconParticles=new TClonesArray("AliFMDReconstParticles",1000);
	90	gAlice->AddHitList (fHits);
	91
	92	fIshunt = 0;
	93	fIdSens1 = 0;
	94	fIdSens2 = 0;
	95	fIdSens3 = 0;
	96	fIdSens4 = 0;
	97	fIdSens5 = 0;
	98	// fMerger = 0;
	99	SetMarkerColor (kRed);
	100	}
	101
	102	//-----------------------------------------------------------------------------
	103	AliFMD::~AliFMD ()
	104	{
	105	if (fHits)
	106	{
	107	fHits->Delete ();
	108	delete fHits;
	109	fHits = 0;
	110	}
	111	if (fDigits)
	112	{
	113	fDigits->Delete ();
	114	delete fDigits;
	115	fDigits = 0;
	116	}
	117	if (fSDigits)
	118	{
	119	fSDigits->Delete ();
	120	delete fSDigits;
	121	fSDigits = 0;
	122	}
	123	if (fReconParticles)
	124	{
	125	fReconParticles->Delete ();
	126	delete fReconParticles;
	127	fReconParticles = 0;
	128	}
	129
	130	}
	131
	132	//_____________________________________________________________________________
	133	void AliFMD::AddHit (Int_t track, Int_t * vol, Float_t * hits)
	134	{
	135	//
	136	// Add a hit to the list
	137	//
	138	TClonesArray & lhits = *fHits;
	139	new (lhits[fNhits++]) AliFMDhit (fIshunt, track, vol, hits);
	140	}
	141
	142	//_____________________________________________________________________________
	143	void AliFMD::AddDigit (Int_t * digits)
	144	{
	145	// add a real digit - as coming from data
	146
	147
	148	TClonesArray & ldigits = *fDigits;
	149	new (ldigits[fNdigits++]) AliFMDdigit (digits);
	150
	151	}
	152	//_____________________________________________________________________________
	153	void AliFMD::AddSDigit (Int_t * digits)
	154	{
	155	// add a real digit - as coming from data
	156
	157	TClonesArray & ldigits = *fSDigits;
	158	new (ldigits[fNdigits++]) AliFMDdigit (digits);
	159
	160	}
	161	//_____________________________________________________________________________
	162	void AliFMD::BuildGeometry ()
	163	{
	164	//
	165	// Build simple ROOT TNode geometry for event display
	166	//
	167	TNode node, top;
	168	const int kColorFMD = 5;
	169	//
	170	top = gAlice->GetGeometry ()->GetNode ("alice");
	171
	172	// FMD define the different volumes
	173	new TRotMatrix ("rot901", "rot901", 90, 0, 90, 90, 180, 0);
	174
	175	new TTUBE ("S_FMD0", "FMD volume 0", "void", 4.2, 17.2, 1.5);
	176	top->cd ();
	177	node = new TNode ("FMD0", "FMD0", "S_FMD0", 0, 0, 62.8, "");
	178	node->SetLineColor (kColorFMD);
	179	fNodes->Add (node);
	180
	181	new TTUBE ("S_FMD1", "FMD volume 1", "void", 15.4, 28.4, 1.5);
	182	top->cd ();
	183	node = new TNode ("FMD1", "FMD1", "S_FMD1", 0, 0, 75.2, "");
	184	node->SetLineColor (kColorFMD);
	185	fNodes->Add (node);
	186
	187	new TTUBE ("S_FMD2", "FMD volume 2", "void", 4.2, 17.2, 1.5);
	188	top->cd ();
	189	node = new TNode ("FMD2", "FMD2", "S_FMD2", 0, 0, -83.2, "");
	190	node->SetLineColor (kColorFMD);
	191	fNodes->Add (node);
	192
	193	new TTUBE ("S_FMD3", "FMD volume 3", "void", 15.4, 28.4, 1.5);
	194	top->cd ();
	195	node = new TNode ("FMD3", "FMD3", "S_FMD3", 0, 0, -75.2, "");
	196	node->SetLineColor (kColorFMD);
	197	fNodes->Add (node);
	198
	199	new TTUBE ("S_FMD4", "FMD volume 4", "void", 4.2, 17.2, 1.5);
	200	top->cd ();
	201	// node = new TNode("FMD4","FMD4","S_FMD4",0,0,-270,"");
	202	node = new TNode ("FMD4", "FMD4", "S_FMD4", 0, 0, -340, "");
	203	node->SetLineColor (kColorFMD);
	204	fNodes->Add (node);
	205	}
	206
	207	//_____________________________________________________________________________
	208	Int_t AliFMD::DistanceToPrimitive (Int_t px, Int_t py)
	209	{
	210	//
	211	// Calculate the distance from the mouse to the FMD on the screen
	212	// Dummy routine
	213	//
	214	return 9999;
	215	}
	216
	217	//___________________________________________
	218	void AliFMD::ResetHits ()
	219	{
	220	// Reset number of clusters and the cluster array for this detector
	221	AliDetector::ResetHits ();
	222	}
	223
	224	//____________________________________________
	225	void AliFMD::ResetDigits ()
	226	{
	227	//
	228	// Reset number of digits and the digits array for this detector
	229	AliDetector::ResetDigits ();
	230	//
	231	}
	232
	233	//-------------------------------------------------------------------------
	234
	235	void AliFMD::Init ()
	236	{
	237	//
	238	// Initialis the FMD after it has been built
	239	Int_t i;
	240	//
	241	if (fDebug)
	242	{
	243	printf ("\n%s: ", ClassName ());
	244	for (i = 0; i < 35; i++)
	245	printf ("*");
	246	printf (" FMD_INIT ");
	247	for (i = 0; i < 35; i++)
	248	printf ("*");
	249	printf ("\n%s: ", ClassName ());
	250	//
	251	// Here the FMD initialisation code (if any!)
	252	for (i = 0; i < 80; i++)
	253	printf ("*");
	254	printf ("\n");
	255	}
	256	//
	257	//
	258	fIdSens1 = gMC->VolId ("GRN1"); //Si sensetive volume
	259	fIdSens2 = gMC->VolId ("GRN2"); //Si sensetive volume
	260	fIdSens3 = gMC->VolId ("GRN3"); //Si sensetive volume
	261	fIdSens4 = gMC->VolId ("GRN4"); //Si sensetive volume
	262	fIdSens5 = gMC->VolId ("GRN5"); //Si sensetive volume
	263
	264	}
	265
	266	//---------------------------------------------------------------------
	267	void AliFMD::MakeBranch (Option_t * option, const char *file)
	268	{
	269	// Create Tree branches for the FMD.
	270	char branchname[10];
	271	const Int_t kBufferSize = 16000;
	272	sprintf (branchname, "%s", GetName ());
	273
	274	AliDetector::MakeBranch (option, file);
	275	const char *cD = strstr(option,"D");
	276	const char *cR = strstr(option,"R");
	277	const char *cS = strstr(option,"S");
	278
	279	if (cS){
	280
	281	MakeBranchInTree(gAlice->TreeS(),
	282	branchname,&fSDigits,
	283	kBufferSize, file);
	284	}
	285	if (cD){
	286
	287	MakeBranchInTree(gAlice->TreeD(),
	288	branchname,&fDigits,
	289	kBufferSize, file);
	290	cout<<" tree "<<gAlice->TreeD()<<" "<<branchname<<" "<<&fDigits<<endl;
	291	}
	292	if (cR){
	293	MakeBranchInTree(gAlice->TreeR(),
	294	branchname,&fReconParticles,
	295	kBufferSize, file);
	296	}
	297
	298	}
	299
	300	//_____________________________________________________________________________
	301	void AliFMD::SetTreeAddress ()
	302	{
	303	// Set branch address for the Hits and Digits Tree.
	304	char branchname[30];
	305	AliDetector::SetTreeAddress ();
	306
	307	TBranch *branch;
	308	TTree *treeD = gAlice->TreeD ();
	309
	310
	311	if (treeD)
	312	{
	313	if (fDigits)
	314	{
	315	branch = treeD->GetBranch (branchname);
	316	if (branch)
	317	branch->SetAddress (&fDigits);
	318	}
	319
	320	}
	321	if (fSDigits)
	322	// fSDigits->Clear ();
	323
	324	if (gAlice->TreeS () && fSDigits)
	325	{
	326	branch = gAlice->TreeS ()->GetBranch ("FMD");
	327	if (branch)
	328	branch->SetAddress (&fSDigits);
	329	}
	330
	331	if (gAlice->TreeR() && fReconParticles)
	332	{
	333	branch = gAlice->TreeR()->GetBranch("FMD");
	334	if (branch) branch->SetAddress(&fReconParticles) ;
	335	}
	336	}
	337
	338	//---------------------------------------------------------------------
	339
	340	void AliFMD::SetRingsSi1(Int_t ringsSi1)
	341	{
	342	// fRingsSi1=ringsSi1;
	343	fRingsSi1=768;
	344	}
	345	void AliFMD::SetSectorsSi1(Int_t sectorsSi1)
	346	{
	347	fSectorsSi1=20;
	348	}
	349	void AliFMD::SetRingsSi2(Int_t ringsSi2)
	350	{
	351	fRingsSi2=384;
	352	}
	353	void AliFMD::SetSectorsSi2(Int_t sectorsSi2)
	354	{
	355	fSectorsSi2=40;
	356	}
	357
	358	//---------------------------------------------------------------------
	359	/*
	360	void AliFMD::SDigits2Digits()
	361	{
	362	cout<<"AliFMD::SDigits2Digits"<<endl;
	363	if (!fMerger) {
	364	fMerger = new AliFMDMerger();
	365	}
	366
	367	fMerger ->SetRingsSi1(fRingsSi1);
	368	fMerger->SetRingsSi2(fRingsSi2);
	369	fMerger ->SetSectorsSi1(fSectorsSi1);
	370	fMerger ->SetSectorsSi2(fSectorsSi2);
	371
	372	fMerger->Init();
	373	cout<<"AliFMD::SDigits2Digits Init"<<endl;
	374	fMerger->Digitise();
	375	cout<<"AliFMD::SDigits2Digits Digitise() "<<endl;
	376
	377
	378	}
	379
	380	//---------------------------------------------------------------------
	381	void AliFMD::SetMerger(AliFMDMerger* merger)
	382	{
	383	// Set pointer to merger
	384	fMerger = merger;
	385	}
	386
	387	AliFMDMerger* AliFMD::Merger()
	388	{
	389	// Return pointer to merger
	390	return fMerger;
	391	}
	392	*/
	393	//---------------------------------------------------------------------
	394
	395
	396
	397	void
	398	AliFMD::Eta2Radius (Float_t eta, Float_t zDisk, Float_t * radius)
	399	{
	400	Float_t expEta = TMath::Exp (-eta);
	401	Float_t theta = TMath::ATan (expEta);
	402	theta = 2. * theta;
	403	Float_t rad = zDisk * (TMath::Tan (theta));
	404	*radius = rad;
	405
	406	if (fDebug)
	407	printf ("%s: eta %f radius %f\n", ClassName (), eta, rad);
	408	}
	409
	410	//---------------------------------------------------------------------
	411
	412	void AliFMD::Hits2SDigits ()
	413	{
	414
	415	//#ifdef DEBUG
	416	cout<<"ALiFMD::Hits2SDigits> start...\n";
	417	//#endif
	418
	419	char * fileSDigits = "FMD.SDigits.root";
	420	char * fileHeader = 0;
	421	AliFMDSDigitizer * sd = new AliFMDSDigitizer(fileHeader,fileSDigits) ;
	422	sd->SetRingsSi1(fRingsSi1);
	423	sd->SetRingsSi2(fRingsSi2);
	424	sd->SetSectorsSi1(fSectorsSi1);
	425	sd->SetSectorsSi2(fSectorsSi2);
	426	// sd->SetEventNumber(fEvNrSig);
	427	sd->Exec("") ;
	428
	429	delete sd ;
	430
	431	}
	432	//-----------------------------------------------------------------------
	433
	434	void AliFMD::Digits2Reco()
	435	{
	436	char * fileReconParticles=0;
	437	char * fileHeader=0;
	438	AliFMDReconstruction * reconstruction =
	439	new AliFMDReconstruction(fileHeader,fileReconParticles) ;
	440	reconstruction->Exec("");
	441	delete reconstruction;
	442	}
	443	//-----------------------------------------------------------------------
	444
	445	void AliFMD::MakeBranchInTreeD(TTree treeD, const char file)
	446	{
	447	//
	448	// Create TreeD branches for the MUON.
	449	//
	450
	451	const Int_t kBufferSize = 4000;
	452	char branchname[20];
	453
	454
	455	sprintf(branchname,"%s",GetName());
	456	if(treeD){
	457	MakeBranchInTree(treeD,
	458	branchname,&fDigits,
	459	kBufferSize, file);
	460	}
	461	}
	462