[u/mrichter/AliRoot.git] / TPC / AliSimDigits.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.                  *
 **************************************************************************/

/*
$Log$
Revision 1.7  2002/10/23 07:17:33  alibrary
Introducing Riostream.h

Revision 1.6  2002/01/21 17:15:23  kowal2
Better protection.

Revision 1.5  2001/11/24 16:10:22  kowal2
Faster algorithms.

Revision 1.4  2000/10/05 16:01:49  kowal2
Corrected for memory leaks.

Revision 1.3  2000/06/30 12:07:49  kowal2
Updated from the TPC-PreRelease branch

Revision 1.2.4.3  2000/06/26 07:39:42  kowal2
Changes to obey the coding rules

Revision 1.2.4.2  2000/06/25 08:38:41  kowal2
Splitted from AliTPCtracking

Revision 1.2.4.1  2000/06/14 16:45:13  kowal2
Improved algorithms. Compiler warnings removed.

Revision 1.2  2000/04/17 09:37:33  kowal2
removed obsolete AliTPCDigitsDisplay.C

Revision 1.1.4.2  2000/04/10 11:37:42  kowal2

Digits handling in a new data structure

*/

//

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  Alice segment manager object                                             //
//                                
//  AliSimDigits object   (derived from AliDigits)                            //
//  provide additional track information to digit                            //
//  
//   Origin: Marian Ivanov  GSI Darmstadt                                     //
//
//                                                                           //
//                                                                          //
///////////////////////////////////////////////////////////////////////////////

#include "TClass.h"
#include <Riostream.h>
#include "TError.h"
#include "AliSegmentID.h"
#include "AliH2F.h"
#include "AliArrayI.h"
#include "AliArrayS.h"
#include "AliDigits.h"
#include "AliSimDigits.h"
#include "AliTPC.h"
#include <TClonesArray.h>


//_____________________________________________________________________________
//_____________________________________________________________________________
//_____________________________________________________________________________
ClassImp(AliSimDigits)

AliSimDigits::AliSimDigits()
{
  //  AliDigits::Invalite();
  fTracks = 0;
  fTrIndex = 0;  
  InvalidateTrack();
}
AliSimDigits::~AliSimDigits()
{

  if (fTracks != 0) {
    delete fTracks;
  }
  if (fTrIndex != 0) { 
    delete fTrIndex;
  } 

}

void AliSimDigits::InvalidateTrack() 
{ 
  //
  //set default (invalid parameters)
  if ( fTracks != 0) delete fTracks;
  fTracks = new AliArrayI;
  if ( fTrIndex  != 0) delete fTrIndex;
  fTrIndex = new AliArrayI;

  for (Int_t i = 0; i<3; i++){
    fTracks->Set(0);
    fTrIndex->Set(0);
  }
}

void  AliSimDigits::AllocateTrack(Int_t length)
{
  //
  //construct empty buffer fElements and fTracks with size fNrows x fNcols x
  //length 
  InvalidateTrack();
  fNlevel = length;
  fTracks->Set(fNcols*fNrows*fNlevel);
  fTrIndex->Set(0); 
  fTrBufType =0;
}

Int_t AliSimDigits::GetTrackID(Int_t row, Int_t column, Int_t level) 
{
  //
  //Get track ID 
  if (fTrBufType == 0) return  GetTrackIDFast(row, column,level);
  if (fTrBufType == 1) return  GetTrackID1(row, column,level); 
  if (fTrBufType == 2) return  GetTrackID2(row, column,level); 
  return 0;
}

void AliSimDigits::ExpandTrackBuffer()
{  
  //
  //expand buffer to two dimensional array 
  if (fTrBufType<0)  {
    Error("ExpandBuffer", "buffer doesn't exist");
    return;
  }
  if (fTrBufType==0)      return;  //buffer expanded
  if (fTrBufType==1)  {ExpandTrackBuffer1(); return;}
  if (fTrBufType==2)  ExpandTrackBuffer2();
 
}

void AliSimDigits::CompresTrackBuffer(Int_t bufType)
{
  //
  //compres buffer according buffertype algorithm
  //
  if (fTrBufType<0)  {
    Error("CompressBuffer", "buffer doesn't exist");
    return;
  }
  if (fTrBufType == bufType) return;
  //
  if (fTrBufType>0) ExpandTrackBuffer();
  if (fTrBufType !=0)  {
    Error("CompressBuffer", "buffer doesn't exist");
    return;
  }
  //compress buffer of type 1
  
  if (bufType==1)      {CompresTrackBuffer1();return;}
  if (bufType==2)      CompresTrackBuffer2();
   
}

Int_t  AliSimDigits::GetTrackID1(Int_t row, Int_t column, Int_t level)
{
  //return  track ID of digits - for buffer compresion 2
  Int_t i,n1,n2;
  i = level*fNcols+column;
  if ( (i+1)>=fTrIndex->fN) n2 = fTracks->fN;
  else 
    n2 = fTrIndex->At(i+1);
  n1 = fTrIndex->At(i);
  Int_t rownew = 0;
  Int_t rowold=0;
  Int_t id;
  for (i = n1;(i<n2);i++){
    id = 0;
    Int_t num = fTracks->At(i);
    if (num<0) {
      rownew-=num;  
      rowold = rownew;
      i++;
      if (i<n2){
	num = fTracks->At(i);
	rownew+=num;
	i++;
	id = fTracks->At(i);
      }
    }
    else {
      rowold = rownew;
      rownew+=num;
      i++;
      id = fTracks->At(i);
    }
    id-=2;
    if ( (row>=rowold) && (row<=rownew) ) return id;
    if (row < rownew ) return -2; //empty track
  }
  return -2;
}

void  AliSimDigits::ExpandTrackBuffer1()
{
  //
  //expand  track compressed according algorithm 1 (track id comression independent to the digit compression)
  // !!in expanded tracks we don't use fTrIndex array
  //  
  fTrBufType = 0;
  Int_t i,j;
  Int_t all   = fNrows*fNcols;  //total number of digits
  Int_t elems = all*fNlevel;  //length of the buffer

  AliArrayI * buf = new AliArrayI;
  buf->Set(elems);
  fTrIndex->Set(0);
  //
  Int_t level = 0;
  Int_t col=0;
  Int_t row = 0;
  Int_t n=fTracks->fN;
  //
  for (i=0;i<n;i++){
    //oposite signa means how many unwrited (under threshold) values
    Int_t num = fTracks->At(i);
    if (num<0) row-=num;   //negative number mean number of zeroes (no tracks of gibven level no need to write to array) 
    else {
      i++;
      Int_t id =  fTracks->At(i);
      for (j = 0; j<num; j++,row++) (*buf)[level*all+col*fNrows+row]=id;       
    }
    if (row>=fNrows) {
      row=0;
      col++;
    }
    if (col>=fNcols) {
      col=0;
      level++;
    }    
  }//end of loop over digits
  delete fTracks;
  fTracks = buf;
}

void  AliSimDigits::CompresTrackBuffer1()
{
  //
  //comress track according algorithm 1 (track id comression independent to the digit compression)
  //
  fTrBufType = 1;  

  AliArrayI *  buf = new AliArrayI;   //create  new buffer 
  buf->Set(fNrows*fNcols*fNlevel); //lets have the nearly the "worst case"
  AliArrayI *  index = new AliArrayI;
  index->Set(fNcols*fNlevel);
  //  Int_t * pindex = 

  
  Int_t icurrent=-1;  //current index
  Int_t izero;      //number of zero
  Int_t inum;      //number of digits  with the same current track id  
  Int_t lastID =0;  //last track id  
  
  Int_t *cbuff=fTracks->GetArray(); //MI change

  for (Int_t lev =0; lev<fNlevel; lev++){    //loop over levels 
    for (Int_t col = 0; col<fNcols; col++){    //loop over columns
      izero = 0;
      inum =  0;
      lastID = 0;
      (*index)[lev*fNcols+col]=icurrent+1;//set collumn pointer
      Int_t id=0;  //current id
      for (Int_t row = 0; row< fNrows;row++){ //loop over rows        
	id = *cbuff;  //MI change
	//	id = GetTrackIDFast(row,col,lev);
	if (id <= 0) {
	  if ( inum> 0 ) { //if we have some tracks in buffer
	    icurrent++;
	    if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2+1); //MI change - allocate +1
	    (*buf)[icurrent] = inum;
	    icurrent++;
	    (*buf)[icurrent] = lastID;	
	    inum = 0;      
	    lastID = 0;
	  }
	  izero++;
	}
	else
          if (id != lastID) 
	    if ( izero > 0 ) { 
	      //if we have currently izero count of non tracks digits
	      icurrent++;	  
	      if (icurrent>=buf->fN) buf->Expand(icurrent*2+1);
	      (*buf)[icurrent]= -izero;  //write how many under zero
	      inum++;
	      izero = 0;	     
	      lastID = id;
	    }
	    else{ 
	      //if we change track id from another track id	    
	      icurrent++;	  
	      if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2+1);
	      (*buf)[icurrent] = inum;
	      icurrent++;
	      (*buf)[icurrent] = lastID;	
	      lastID = id;
	      inum = 1;      
	      izero = 0;
	    }	
	  else {	  
	    inum++;
	  }
	cbuff++;  //MI change
      }//end of loop over row
      if ( izero > 0 ) { 
	//if we have currently izero count of non tracks digits
	icurrent++;	  
	if (icurrent>=buf->fN) buf->Expand(icurrent*2);
	(*buf)[icurrent]= -izero;  //write how many under zero	
      }
      if ( inum> 0 ) { //if we have some tracks in buffer
	icurrent++;
	if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2);
	(*buf)[icurrent] = inum;
	icurrent++;
	(*buf)[icurrent] = id;	
      }      
    }//end of loop over columns
  }//end of loop over differnet track level  
  buf->Expand(icurrent+1);
  delete fTracks;
  fTracks = buf;
  delete fTrIndex;
  fTrIndex = index;
}


void  AliSimDigits::ExpandTrackBuffer2()
{
  //
  //comress track according algorithm 2 (track id comression according  digit compression)
  fTrBufType = 0;
}

void  AliSimDigits::CompresTrackBuffer2()
{
  //
  //comress track according algorithm 2 (track id comression according  digit compression)
  fTrBufType = 2;
}


Int_t  AliSimDigits::GetTrackID2(Int_t row, Int_t column, Int_t level)
{
  //returnb track id of digits - for buffer compresion 2
  return -2;
}


AliH2F *  AliSimDigits::DrawTracks( const char *option,Int_t level, 
			      Float_t x1, Float_t x2, Float_t y1, Float_t y2)
{
  //
  //draw digits in given array
  //  
  //make digits histo 
  char ch[30];
  sprintf(ch,"Track Segment_%d level %d ",GetID(),level );
  if ( (fNrows<1)|| (fNcols<1)) {
    return 0;
  }
  AliH2F * his  = new AliH2F("Track histo",ch,fNrows,0,fNrows,fNcols,0,fNcols);
  ExpandTrackBuffer();
  //set histogram  values
  for (Int_t i = 0; i<fNrows;i++)    
    for (Int_t j = 0; j<fNcols;j++)
        his->Fill(i,j,GetTrackIDFast(i,j,level));
  if (x1>=0) {
      AliH2F *h2fsub = his->GetSubrange2d(x1,x2,y1,y2);
      delete his;
      his=h2fsub;
  }
  if (his==0) return 0;
  if (option!=0) his->Draw(option);
  else his->Draw();
  return his;  
}

TClonesArray *  AliSimDigits::GenerTPCClonesArray(TClonesArray * arr)
{
  //
  //generate TClonnesArray of digits
  //
  TClonesArray * digits;
  if (arr==0)  digits=new TClonesArray("AliTPCdigit",300);
  else digits = arr; 
  Int_t index = digits->GetEntriesFast();
  for (Int_t row =0; row<fNrows; row++)
    for (Int_t col =0; col<fNcols; col++){
      Int_t amp = GetDigit(row,col);
      if (amp>GetThreshold()){
	AliTPCdigit dig;
	dig.fPad = col;
	dig.fTime = row;
	dig.fSignal= amp;
	dig.fPadRow =fSegmentID;
	dig.fSector =fSegmentID;
	dig.GetTracks()[0]= GetTrackID(row,col,0);
	dig.GetTracks()[1]= GetTrackID(row,col,1);
	dig.GetTracks()[2]= GetTrackID(row,col,2);
	TClonesArray &ldigits = *digits;
	new(ldigits[index++]) AliTPCdigit(dig);
      }
    }    
  return digits;
}
Commit	Line	Data
cc80f89e	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	$Log$
116cbefd	18	Revision 1.7 2002/10/23 07:17:33 alibrary
	19	Introducing Riostream.h
	20
19364939	21	Revision 1.6 2002/01/21 17:15:23 kowal2
	22	Better protection.
	23
a6bc70e0	24	Revision 1.5 2001/11/24 16:10:22 kowal2
	25	Faster algorithms.
	26
407ff276	27	Revision 1.4 2000/10/05 16:01:49 kowal2
	28	Corrected for memory leaks.
	29
c4aa8648	30	Revision 1.3 2000/06/30 12:07:49 kowal2
	31	Updated from the TPC-PreRelease branch
	32
73042f01	33	Revision 1.2.4.3 2000/06/26 07:39:42 kowal2
	34	Changes to obey the coding rules
	35
	36	Revision 1.2.4.2 2000/06/25 08:38:41 kowal2
	37	Splitted from AliTPCtracking
	38
	39	Revision 1.2.4.1 2000/06/14 16:45:13 kowal2
	40	Improved algorithms. Compiler warnings removed.
	41
	42	Revision 1.2 2000/04/17 09:37:33 kowal2
	43	removed obsolete AliTPCDigitsDisplay.C
	44
cc80f89e	45	Revision 1.1.4.2 2000/04/10 11:37:42 kowal2
	46
	47	Digits handling in a new data structure
	48
	49	*/
	50
73042f01	51	//
cc80f89e	52
	53	///////////////////////////////////////////////////////////////////////////////
	54	// //
	55	// Alice segment manager object //
	56	//
	57	// AliSimDigits object (derived from AliDigits) //
	58	// provide additional track information to digit //
	59	//
	60	// Origin: Marian Ivanov GSI Darmstadt //
	61	//
	62	// //
	63	// //
	64	///////////////////////////////////////////////////////////////////////////////
	65
	66	#include "TClass.h"
19364939	67	#include <Riostream.h>
cc80f89e	68	#include "TError.h"
	69	#include "AliSegmentID.h"
	70	#include "AliH2F.h"
	71	#include "AliArrayI.h"
	72	#include "AliArrayS.h"
	73	#include "AliDigits.h"
	74	#include "AliSimDigits.h"
	75	#include "AliTPC.h"
c4aa8648	76	#include <TClonesArray.h>
cc80f89e	77
	78
	79
	80	//_____________________________________________________________________________
	81	//_____________________________________________________________________________
	82	//_____________________________________________________________________________
	83	ClassImp(AliSimDigits)
	84
	85	AliSimDigits::AliSimDigits()
	86	{
	87	// AliDigits::Invalite();
	88	fTracks = 0;
	89	fTrIndex = 0;
	90	InvalidateTrack();
	91	}
	92	AliSimDigits::~AliSimDigits()
	93	{
c4aa8648	94
	95	if (fTracks != 0) {
	96	delete fTracks;
	97	}
	98	if (fTrIndex != 0) {
	99	delete fTrIndex;
	100	}
cc80f89e	101
	102	}
	103
	104	void AliSimDigits::InvalidateTrack()
	105	{
	106	//
	107	//set default (invalid parameters)
	108	if ( fTracks != 0) delete fTracks;
	109	fTracks = new AliArrayI;
	110	if ( fTrIndex != 0) delete fTrIndex;
	111	fTrIndex = new AliArrayI;
	112
	113	for (Int_t i = 0; i<3; i++){
	114	fTracks->Set(0);
	115	fTrIndex->Set(0);
	116	}
	117	}
	118
	119	void AliSimDigits::AllocateTrack(Int_t length)
	120	{
	121	//
	122	//construct empty buffer fElements and fTracks with size fNrows x fNcols x
	123	//length
	124	InvalidateTrack();
	125	fNlevel = length;
	126	fTracks->Set(fNcolsfNrowsfNlevel);
	127	fTrIndex->Set(0);
	128	fTrBufType =0;
	129	}
	130
	131	Int_t AliSimDigits::GetTrackID(Int_t row, Int_t column, Int_t level)
	132	{
	133	//
	134	//Get track ID
	135	if (fTrBufType == 0) return GetTrackIDFast(row, column,level);
	136	if (fTrBufType == 1) return GetTrackID1(row, column,level);
	137	if (fTrBufType == 2) return GetTrackID2(row, column,level);
	138	return 0;
	139	}
	140
	141	void AliSimDigits::ExpandTrackBuffer()
	142	{
	143	//
	144	//expand buffer to two dimensional array
	145	if (fTrBufType<0) {
	146	Error("ExpandBuffer", "buffer doesn't exist");
	147	return;
	148	}
	149	if (fTrBufType==0) return; //buffer expanded
	150	if (fTrBufType==1) {ExpandTrackBuffer1(); return;}
	151	if (fTrBufType==2) ExpandTrackBuffer2();
	152
	153	}
	154
	155	void AliSimDigits::CompresTrackBuffer(Int_t bufType)
	156	{
	157	//
	158	//compres buffer according buffertype algorithm
	159	//
	160	if (fTrBufType<0) {
	161	Error("CompressBuffer", "buffer doesn't exist");
	162	return;
	163	}
	164	if (fTrBufType == bufType) return;
165	//
166	if (fTrBufType>0) ExpandTrackBuffer();
167	if (fTrBufType !=0) {
168	Error("CompressBuffer", "buffer doesn't exist");
169	return;
170	}
171	//compress buffer of type 1
172
173	if (bufType==1) {CompresTrackBuffer1();return;}
174	if (bufType==2) CompresTrackBuffer2();
175
176	}
177
178	Int_t AliSimDigits::GetTrackID1(Int_t row, Int_t column, Int_t level)
179	{
180	//return track ID of digits - for buffer compresion 2
181	Int_t i,n1,n2;
182	i = level*fNcols+column;
183	if ( (i+1)>=fTrIndex->fN) n2 = fTracks->fN;
184	else
185	n2 = fTrIndex->At(i+1);
186	n1 = fTrIndex->At(i);
187	Int_t rownew = 0;
188	Int_t rowold=0;
73042f01	189	Int_t id;
cc80f89e	190	for (i = n1;(i<n2);i++){
73042f01	191	id = 0;
cc80f89e	192	Int_t num = fTracks->At(i);
	193	if (num<0) {
	194	rownew-=num;
	195	rowold = rownew;
	196	i++;
	197	if (i<n2){
	198	num = fTracks->At(i);
	199	rownew+=num;
	200	i++;
73042f01	201	id = fTracks->At(i);
cc80f89e	202	}
	203	}
	204	else {
	205	rowold = rownew;
	206	rownew+=num;
	207	i++;
73042f01	208	id = fTracks->At(i);
cc80f89e	209	}
73042f01	210	id-=2;
73042f01	211	if ( (row>=rowold) && (row<=rownew) ) return id;
cc80f89e	212	if (row < rownew ) return -2; //empty track
	213	}
	214	return -2;
	215	}
	216
	217	void AliSimDigits::ExpandTrackBuffer1()
	218	{
	219	//
73042f01	220	//expand track compressed according algorithm 1 (track id comression independent to the digit compression)
cc80f89e	221	// !!in expanded tracks we don't use fTrIndex array
	222	//
	223	fTrBufType = 0;
	224	Int_t i,j;
	225	Int_t all = fNrows*fNcols; //total number of digits
	226	Int_t elems = all*fNlevel; //length of the buffer
	227
	228	AliArrayI * buf = new AliArrayI;
	229	buf->Set(elems);
	230	fTrIndex->Set(0);
	231	//
	232	Int_t level = 0;
	233	Int_t col=0;
	234	Int_t row = 0;
73042f01	235	Int_t n=fTracks->fN;
cc80f89e	236	//
73042f01	237	for (i=0;i<n;i++){
cc80f89e	238	//oposite signa means how many unwrited (under threshold) values
	239	Int_t num = fTracks->At(i);
	240	if (num<0) row-=num; //negative number mean number of zeroes (no tracks of gibven level no need to write to array)
	241	else {
	242	i++;
73042f01	243	Int_t id = fTracks->At(i);
73042f01	244	for (j = 0; j<num; j++,row++) (buf)[levelall+col*fNrows+row]=id;
cc80f89e	245	}
	246	if (row>=fNrows) {
	247	row=0;
	248	col++;
	249	}
	250	if (col>=fNcols) {
	251	col=0;
	252	level++;
	253	}
	254	}//end of loop over digits
	255	delete fTracks;
	256	fTracks = buf;
	257	}
	258
	259	void AliSimDigits::CompresTrackBuffer1()
	260	{
	261	//
73042f01	262	//comress track according algorithm 1 (track id comression independent to the digit compression)
cc80f89e	263	//
	264	fTrBufType = 1;
	265
	266	AliArrayI * buf = new AliArrayI; //create new buffer
	267	buf->Set(fNrowsfNcolsfNlevel); //lets have the nearly the "worst case"
	268	AliArrayI * index = new AliArrayI;
	269	index->Set(fNcols*fNlevel);
407ff276	270	// Int_t * pindex =
cc80f89e	271
407ff276	272
cc80f89e	273	Int_t icurrent=-1; //current index
cc80f89e	274	Int_t izero; //number of zero
73042f01	275	Int_t inum; //number of digits with the same current track id
407ff276	276	Int_t lastID =0; //last track id
	277
	278	Int_t *cbuff=fTracks->GetArray(); //MI change
	279
cc80f89e	280	for (Int_t lev =0; lev<fNlevel; lev++){ //loop over levels
	281	for (Int_t col = 0; col<fNcols; col++){ //loop over columns
	282	izero = 0;
	283	inum = 0;
	284	lastID = 0;
	285	(index)[levfNcols+col]=icurrent+1;//set collumn pointer
73042f01	286	Int_t id=0; //current id
407ff276	287	for (Int_t row = 0; row< fNrows;row++){ //loop over rows
	288	id = *cbuff; //MI change
	289	// id = GetTrackIDFast(row,col,lev);
73042f01	290	if (id <= 0) {
cc80f89e	291	if ( inum> 0 ) { //if we have some tracks in buffer
cc80f89e	292	icurrent++;
a6bc70e0	293	if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2+1); //MI change - allocate +1
cc80f89e	294	(*buf)[icurrent] = inum;
	295	icurrent++;
	296	(*buf)[icurrent] = lastID;
	297	inum = 0;
	298	lastID = 0;
	299	}
	300	izero++;
	301	}
	302	else
73042f01	303	if (id != lastID)
cc80f89e	304	if ( izero > 0 ) {
	305	//if we have currently izero count of non tracks digits
	306	icurrent++;
a6bc70e0	307	if (icurrent>=buf->fN) buf->Expand(icurrent*2+1);
cc80f89e	308	(*buf)[icurrent]= -izero; //write how many under zero
	309	inum++;
	310	izero = 0;
73042f01	311	lastID = id;
cc80f89e	312	}
cc80f89e	313	else{
73042f01	314	//if we change track id from another track id
cc80f89e	315	icurrent++;
a6bc70e0	316	if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2+1);
cc80f89e	317	(*buf)[icurrent] = inum;
	318	icurrent++;
	319	(*buf)[icurrent] = lastID;
73042f01	320	lastID = id;
cc80f89e	321	inum = 1;
	322	izero = 0;
	323	}
	324	else {
	325	inum++;
	326	}
407ff276	327	cbuff++; //MI change
407ff276	328	}//end of loop over row
cc80f89e	329	if ( izero > 0 ) {
	330	//if we have currently izero count of non tracks digits
	331	icurrent++;
	332	if (icurrent>=buf->fN) buf->Expand(icurrent*2);
	333	(*buf)[icurrent]= -izero; //write how many under zero
	334	}
	335	if ( inum> 0 ) { //if we have some tracks in buffer
	336	icurrent++;
	337	if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2);
	338	(*buf)[icurrent] = inum;
	339	icurrent++;
73042f01	340	(*buf)[icurrent] = id;
cc80f89e	341	}
	342	}//end of loop over columns
	343	}//end of loop over differnet track level
	344	buf->Expand(icurrent+1);
	345	delete fTracks;
	346	fTracks = buf;
	347	delete fTrIndex;
	348	fTrIndex = index;
	349	}
	350
	351
	352
	353	void AliSimDigits::ExpandTrackBuffer2()
	354	{
	355	//
73042f01	356	//comress track according algorithm 2 (track id comression according digit compression)
cc80f89e	357	fTrBufType = 0;
	358	}
	359
	360	void AliSimDigits::CompresTrackBuffer2()
	361	{
	362	//
73042f01	363	//comress track according algorithm 2 (track id comression according digit compression)
cc80f89e	364	fTrBufType = 2;
	365	}
	366
	367
	368	Int_t AliSimDigits::GetTrackID2(Int_t row, Int_t column, Int_t level)
	369	{
73042f01	370	//returnb track id of digits - for buffer compresion 2
cc80f89e	371	return -2;
	372	}
	373
	374
	375
	376	AliH2F * AliSimDigits::DrawTracks( const char *option,Int_t level,
	377	Float_t x1, Float_t x2, Float_t y1, Float_t y2)
	378	{
	379	//
	380	//draw digits in given array
	381	//
	382	//make digits histo
	383	char ch[30];
	384	sprintf(ch,"Track Segment_%d level %d ",GetID(),level );
	385	if ( (fNrows<1)\|\| (fNcols<1)) {
	386	return 0;
	387	}
	388	AliH2F * his = new AliH2F("Track histo",ch,fNrows,0,fNrows,fNcols,0,fNcols);
	389	ExpandTrackBuffer();
	390	//set histogram values
	391	for (Int_t i = 0; i<fNrows;i++)
	392	for (Int_t j = 0; j<fNcols;j++)
	393	his->Fill(i,j,GetTrackIDFast(i,j,level));
	394	if (x1>=0) {
	395	AliH2F *h2fsub = his->GetSubrange2d(x1,x2,y1,y2);
	396	delete his;
	397	his=h2fsub;
	398	}
	399	if (his==0) return 0;
	400	if (option!=0) his->Draw(option);
	401	else his->Draw();
	402	return his;
	403	}
	404
	405	TClonesArray * AliSimDigits::GenerTPCClonesArray(TClonesArray * arr)
	406	{
	407	//
	408	//generate TClonnesArray of digits
	409	//
	410	TClonesArray * digits;
	411	if (arr==0) digits=new TClonesArray("AliTPCdigit",300);
	412	else digits = arr;
	413	Int_t index = digits->GetEntriesFast();
	414	for (Int_t row =0; row<fNrows; row++)
	415	for (Int_t col =0; col<fNcols; col++){
	416	Int_t amp = GetDigit(row,col);
	417	if (amp>GetThreshold()){
	418	AliTPCdigit dig;
	419	dig.fPad = col;
	420	dig.fTime = row;
	421	dig.fSignal= amp;
	422	dig.fPadRow =fSegmentID;
	423	dig.fSector =fSegmentID;
116cbefd	424	dig.GetTracks()[0]= GetTrackID(row,col,0);
	425	dig.GetTracks()[1]= GetTrackID(row,col,1);
	426	dig.GetTracks()[2]= GetTrackID(row,col,2);
cc80f89e	427	TClonesArray &ldigits = *digits;
	428	new(ldigits[index++]) AliTPCdigit(dig);
	429	}
	430	}
	431	return digits;
	432	}
	433