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

/* $Id$ */

/*MI change -- for Rule checker
          -- added copy constructor and assignmet operator 
	  -- new GetSize return size of object in Bytes
          -- added GetDigitSize and GetOverTh function
	  -- added GetNRows, GetNCols function
          -- for Marek -I had it in my code  
*/ 

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//   Alice  digits array  object  AliDigits                                  //
//                                                                           //
//                                                                           //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////


#include "TClass.h"
#include <Riostream.h>
#include "TError.h"
#include "AliSegmentID.h"
#include "AliH2F.h"
#include <TArrayI.h>
#include <TArrayS.h>
#include "AliDigits.h"


//_____________________________________________________________________________
//_____________________________________________________________________________
//_____________________________________________________________________________
ClassImp(AliDigits)


 AliDigits::AliDigits()
           :AliSegmentID(),
            fNrows(0),
            fNcols(0),
	    fElements(0),
            fIndex(0),
            fBufType(0),
            fThreshold(0),
            fNelems(0),
            fCurrentRow(0),
            fCurrentCol(0),
            fCurrentIndex(0) 
{
  // 
  //default constructor
  //
  Invalidate();
}

AliDigits::AliDigits(const AliDigits& digits)
          :AliSegmentID(digits),
            fNrows(0),
            fNcols(0),
	    fElements(0),
            fIndex(0),
            fBufType(0),
            fThreshold(0),
            fNelems(0),
            fCurrentRow(0),
            fCurrentCol(0),
            fCurrentIndex(0)
{
  //
  //copy constructor
  //
  fNrows = digits.fNrows;
  fNcols = digits.fNcols;
  fElements = new TArrayS(*(digits.fElements));
  fIndex = new TArrayI(*(digits.fIndex));
  fBufType = digits.fBufType;
  fThreshold = digits.fThreshold;
  fNelems    = digits.fNelems;
}

AliDigits & AliDigits::operator =(const AliDigits & digits)
{
 //assignment operator
  fNrows = digits.fNrows;
  fNcols = digits.fNcols;
  if (fElements) delete fElements;
  fElements = new TArrayS(*(digits.fElements));
  if (fIndex) delete fIndex;
  fIndex = new TArrayI(*(digits.fIndex));
  fBufType = digits.fBufType;
  fThreshold = digits.fThreshold;
  fNelems    = digits.fNelems; 
  return (*this);
}

AliDigits::~AliDigits()
{
  //
  //default destructor
  if (fIndex !=0 ) {
    delete fIndex;
  }
  if (fElements != 0) {
    delete fElements;
  }
  
  
}


Bool_t AliDigits::OutOfBoundsError(const char *where, Int_t row, Int_t column) 
{
   // Generate an out-of-bounds error. Always returns false.
   ::Error(where, "row %d  col %d out of bounds (size: %d x %d, this: 0x%08x)", 
	   row, column, fNrows, fNcols, this);
   return kFALSE;
}


void AliDigits::Invalidate() 
{ 
  //
  //set default (invalid parameters)
  if (fIndex != 0)  delete  fIndex;
  fIndex = new TArrayI;
  
  if (fElements!= 0)     delete  fElements;
  
  fElements = new TArrayS;
  
  fNrows = fNcols =fNelems= -1; 
  fElements->Set(0); 
  fIndex->Set(0); 
  fBufType = -1;
}

void AliDigits::Allocate(Int_t rows, Int_t columns)
{
  //
  //construct empty buffer fDigits with size rows x columns
  Invalidate();
  if (rows <= 0) {
      Error("Allocate", "no of rows has to be positive");
      return;
   }
   if (columns <= 0) {
      Error("Allocate", "no of columns has to be positive");
      return;
   }
  fNrows = rows;
  fNcols=columns;
  fNelems = fNrows * fNcols;
  fElements->Set(fNelems);
  fIndex->Set(fNcols);
  for (Int_t i =0,k=0; i<fNcols;i++,k+=fNrows) 
  (*fIndex)[i]=k;
  fBufType =0;
}


Int_t AliDigits::GetSize()
{
  //
  //return size of object
  //
  Int_t size = sizeof(this);
  if (fIndex!=0) size+= sizeof(fIndex)+fIndex->GetSize()*sizeof(Int_t);
  if (fElements!=0) size+= sizeof(fElements)+fElements->GetSize()*sizeof(Short_t);
  return size;
}

Int_t AliDigits::GetDigitSize() //return total size of pure digit
{
  //
  //return size of PURE DIGITS
  //
  if (fElements==0) return 0;
  else return sizeof(fElements)+fElements->GetSize()*sizeof(Short_t);
}

Int_t AliDigits::GetOverTh(Float_t threshold,Float_t x1, Float_t x2, Float_t y1, Float_t y2)
{
  //
  //return number of digits over threshold
  // 
 if ( (fElements==0) || (fElements->GetSize()<=0)) return 0;
 
 if (x1<=x2) {
    x1=0;
    x2=fNrows;
  }
  if (y1<=y2) {
     y1=0;
     y2=fNcols;
  }
  Int_t over=0;

  Bool_t cont=First();
  for ( cont=First(); cont==kTRUE;cont=Next()) {
    if ( (CurrentRow()<x1) || (CurrentRow()>x2)) continue;
    if ( (CurrentColumn()<y1) || (CurrentColumn()>y2)) continue;
    if (CurrentDigit()>threshold) over++;
  }
  return over;
}


Short_t AliDigits::GetDigit(Int_t row, Int_t column)
{
  //
  // return digit for given row and collumn
  if (fBufType ==0) return GetDigitFast(row,column);
  if (fBufType ==1) return GetDigit1(row,column);

  return 0;
}


void AliDigits::ExpandBuffer()
{  
  //
  //expand buffer to two dimensional array
  if (fBufType<0)  {
    Error("ExpandBuffer", "buffer doesn't exist");
    return;
  }
  if (fBufType==0)      return;
  
  //expanding of buffer type 1
  if (fBufType==1) ExpandBuffer1();
  
  fBufType = 0;
}

void AliDigits::CompresBuffer(Int_t bufferType,Int_t threshold)
{
  //
  //compres buffer according buffertype algorithm
  if (fBufType<0)  {
    Error("CompressBuffer", "buffer doesn't exist");
    return;
  }
  if (fBufType == bufferType) return;
  //
  if (fBufType>0) ExpandBuffer();
  if (fBufType !=0)  {
    Error("CompressBuffer", "buffer doesn't exist");
    return;
  }
  fThreshold = threshold;
  //compress buffer of type 1
  if ( bufferType == 1) CompresBuffer1();//end of compresing bufer of type 1 
}

Bool_t AliDigits::First()
{
  //adjust  first valid current digit
  if (fBufType ==0) return First0();
  if (fBufType ==1) return First1();
  return kFALSE;
}

Bool_t  AliDigits::Next()
{
  //addjust next valid current digit
  if (fBufType ==0) return Next0();
  if (fBufType ==1) return Next1();
  return kFALSE;
}
 
void AliDigits::AcceptHisto(AliH2F * his)
{
  //
  //make digits buffer with value according histograms values
  //for testing purpose  
  Int_t idim =his->GetNbinsX();
  Int_t jdim =his->GetNbinsY();
  if ( (idim<1)|| (jdim<1)) {
    return;
  }
  //allocate proper buffer size
  Allocate(idim,jdim);
  //set digits values
  for (Int_t i = 0; i<idim;i++)    
    for (Int_t j = 0; j<jdim;j++)
      {
        Int_t index = his->GetBin(i+1,j+1);     
        SetDigitFast((Short_t)his->GetBinContent(index),i,j);
      }   
}

AliH2F *  AliDigits::GenerHisto()
{
  //
  //make digits histo 
  char ch[30];
  sprintf(ch,"Segment_%d ",GetID());
  if ( (fNrows<1)|| (fNcols<1)) {
    return 0;
  }
  AliH2F * his  = new AliH2F("Digit histo",ch,fNrows,0,fNrows,fNcols,0,fNcols);
  ExpandBuffer();
  //set histogram  values
  for (Int_t i = 0; i<fNrows;i++)    
    for (Int_t j = 0; j<fNcols;j++)
        his->Fill(i,j,GetDigitFast(i,j));
  return his;
}

AliH2F *AliDigits::DrawDigits(const char *option,Float_t x1, Float_t x2, Float_t y1, Float_t y2)
{
  //
  //draw digits in given array
  //
  AliH2F *h2f = GenerHisto();
  if (x1>=0) {
      AliH2F *h2fsub = h2f->GetSubrange2d(x1,x2,y1,y2);
      delete h2f;
      h2f=h2fsub;
  }
  if (h2f==0) return 0;
  if (option!=0) h2f->Draw(option);
  else h2f->Draw();
  return h2f;  
}

void AliDigits::ExpandBuffer1()
{
  //
  //expand buffer of type to twodimensional array
  Int_t i,k;
  fNelems = fNrows*fNcols;
  Short_t * buf = new Short_t[fNelems];
  memset(buf,0,fNelems*sizeof(Short_t)); //MI change - 4.12.2000
  fIndex->Set(fNcols);
  for (i =0,k=0 ;i<fNcols;i++,k+=fNrows) (*fIndex)[i]=k;
  Int_t col=0;
  Int_t row = 0;
  Int_t n=fElements->fN;
  for (i=0;i<n;i++){
    //oposite signa means how many unwrited (under threshold) values
    if ((*fElements)[i]<0) row-=fElements->At(i); 
    else {
      buf[(*fIndex)[col]+row]=fElements->At(i);
      row++;
    }
    if (row==fNrows) {
      row=0;
      col++;
    }else 
      if (row>fNrows){
	Invalidate();
	return;
      }      
  }
  fElements->Adopt(fNelems,buf);    
}

void AliDigits::CompresBuffer1()
{
  //
  //compres buffer according  algorithm 1
  //
  TArrayS  buf;  //lets have the nearly the "worst case"
  buf.Set(fNelems);
  TArrayI  index;
  index.Set(fNcols);
  Int_t icurrent=-1;
  Int_t izero;
  Short_t * cbuff = fElements->GetArray();  //MI change

  for (Int_t col = 0; col<fNcols; col++){      
    index[col]=icurrent+1;//set collumn pointer
    izero = 0;  //reset zer counter at the begining of the column
    for (Int_t row = 0; row< fNrows;row++){
      //if under threshold
      //if (GetDigitFast(row,col)<=fThreshold)  izero++;
      if (*cbuff<=fThreshold)  izero++;

      else{
	if (izero>0) {
	  //if we have currently izero count under threshold
	  icurrent++;	  
	  if (icurrent>=buf.fN) buf.Set(icurrent*2);
	  buf[icurrent]= -izero;  //write how many under zero
	  izero = 0;
	} //end of reseting izero
	icurrent++;
	if (icurrent>=buf.fN) buf.Set(icurrent*2);
	//buf[icurrent] = GetDigitFast(row,col);	    
	buf[icurrent] = *cbuff;	    
      }//if signal bigger then threshold	
       cbuff++;
    } //end of loop over rows
    if (izero>0) {
      icurrent++;	  
      if (icurrent>=buf.fN) buf.Set(icurrent*2);
      buf[icurrent]= -izero;  //write how many under zero
    }
  }//end of lopping over digits
  buf.Set(icurrent+1);
  (*fElements)=buf;
  fNelems = fElements->fN;
  fBufType = 1;
  (*fIndex) =index;
  //end of compresing bufer of type 1 
}


Bool_t AliDigits::First0()
{
  //
  //first for the buffer type 0
  fCurrentRow = -1;
  fCurrentCol = -1;
  fCurrentIndex = -1;
  Int_t i;
  for (i=0; (( i<fNelems) && (fElements->At(i)<=fThreshold));i++) {}  //MI1211
  if (i == fNelems) return kFALSE;
  fCurrentCol =i/fNrows;
  fCurrentRow =i%fNrows;
  fCurrentIndex = i;
  return kTRUE;	
}

Bool_t AliDigits::Next0()
{
  //
  //next for the buffer type 0
  //
  if (fCurrentIndex<0) return kFALSE;  // if we didn't adjust first 
  Int_t i;
  for (i=fCurrentIndex+1; ( (i<fNelems) && (fElements->At(i)<=fThreshold) ) ;i++) {}
  if (i >= fNelems)  {
    fCurrentIndex = -1;
    return kFALSE;
  }
  fCurrentCol =i/fNrows;
  fCurrentRow =i%fNrows;
  fCurrentIndex = i;
  return kTRUE;	
}

Bool_t AliDigits::First1()
{
  //
  //first for the buffer type 1
  fCurrentRow = -1;
  fCurrentCol = 0;
  fCurrentIndex = -1;
  Int_t i;
  for (i=0; i<fNelems; i++){
    if (fElements->At(i) < 0) fCurrentRow-=fElements->At(i);
    else      
      fCurrentRow++;
    if (fCurrentRow>=fNrows) {
       fCurrentCol++;
       fCurrentRow-=fNrows;
    }
    if (fElements->At(i)>fThreshold) break;
  }
  fCurrentIndex = i;
  if (fCurrentIndex>=0&&i<fNelems) return kTRUE;
  fCurrentRow =-1;
  fCurrentCol =-1;
  return kFALSE;	
}

Bool_t AliDigits::Next1()
{
  //
  //next for the buffer type 1
  if (fCurrentIndex<0) return kFALSE;  // if we didn't adjust first 
  Int_t i;
  for (i=fCurrentIndex+1; i<fNelems;i++){
    if (fElements->At(i) < 0) fCurrentRow-=fElements->At(i);
    else      
      fCurrentRow++;
    if (fCurrentRow>=fNrows) {
      fCurrentCol++;
      fCurrentRow-=fNrows;
    }
    if (fElements->At(i)>fThreshold) break;
  }
  fCurrentIndex = i;
  if ( (i>=0) && (i<fNelems) ) return kTRUE;
  fCurrentRow =-1;
  fCurrentCol =-1;
  return kFALSE;
}

Short_t AliDigits::GetDigit1(Int_t row, Int_t column)
{
  //
  //return digit for given row and column  the buffer type 1
  //no control performed
  
  Int_t i,n2;
  if ( (column+1)>=fNcols) n2 = fNelems;
  else
    n2 = fIndex->At(column+1);
  Int_t irow = 0; //current row    
 
  for (i=fIndex->At(column); ( (i<n2) && (irow<row) );i++){
    if (fElements->At(i) < 0) irow-=fElements->At(i);
    else      
      irow++;
  }
  if ( irow == row ) return fElements->At(i);
  return -1;
}
Commit	Line	Data
a46e9031	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	/* $Id$ */
a46e9031	17
	18	/*MI change -- for Rule checker
	19	-- added copy constructor and assignmet operator
	20	-- new GetSize return size of object in Bytes
	21	-- added GetDigitSize and GetOverTh function
	22	-- added GetNRows, GetNCols function
	23	-- for Marek -I had it in my code
	24	*/
	25
	26	///////////////////////////////////////////////////////////////////////////////
	27	// //
	28	// Alice digits array object AliDigits //
	29	// //
	30	// //
	31	// //
	32	///////////////////////////////////////////////////////////////////////////////
	33
	34
	35	#include "TClass.h"
70479d0e	36	#include <Riostream.h>
a46e9031	37	#include "TError.h"
	38	#include "AliSegmentID.h"
	39	#include "AliH2F.h"
e756ece8	40	#include <TArrayI.h>
e756ece8	41	#include <TArrayS.h>
a46e9031	42	#include "AliDigits.h"
	43
	44
	45
	46	//_____________________________________________________________________________
	47	//_____________________________________________________________________________
	48	//_____________________________________________________________________________
	49	ClassImp(AliDigits)
	50
	51
179c6296	52	AliDigits::AliDigits()
	53	:AliSegmentID(),
	54	fNrows(0),
	55	fNcols(0),
	56	fElements(0),
	57	fIndex(0),
	58	fBufType(0),
	59	fThreshold(0),
	60	fNelems(0),
	61	fCurrentRow(0),
	62	fCurrentCol(0),
	63	fCurrentIndex(0)
a46e9031	64	{
	65	//
	66	//default constructor
179c6296	67	//
a46e9031	68	Invalidate();
	69	}
	70
179c6296	71	AliDigits::AliDigits(const AliDigits& digits)
	72	:AliSegmentID(digits),
	73	fNrows(0),
	74	fNcols(0),
	75	fElements(0),
	76	fIndex(0),
	77	fBufType(0),
	78	fThreshold(0),
	79	fNelems(0),
	80	fCurrentRow(0),
	81	fCurrentCol(0),
	82	fCurrentIndex(0)
a46e9031	83	{
	84	//
	85	//copy constructor
179c6296	86	//
a46e9031	87	fNrows = digits.fNrows;
a46e9031	88	fNcols = digits.fNcols;
e756ece8	89	fElements = new TArrayS(*(digits.fElements));
e756ece8	90	fIndex = new TArrayI(*(digits.fIndex));
a46e9031	91	fBufType = digits.fBufType;
	92	fThreshold = digits.fThreshold;
	93	fNelems = digits.fNelems;
	94	}
	95
	96	AliDigits & AliDigits::operator =(const AliDigits & digits)
	97	{
	98	//assignment operator
	99	fNrows = digits.fNrows;
	100	fNcols = digits.fNcols;
	101	if (fElements) delete fElements;
e756ece8	102	fElements = new TArrayS(*(digits.fElements));
a46e9031	103	if (fIndex) delete fIndex;
e756ece8	104	fIndex = new TArrayI(*(digits.fIndex));
a46e9031	105	fBufType = digits.fBufType;
	106	fThreshold = digits.fThreshold;
	107	fNelems = digits.fNelems;
	108	return (*this);
	109	}
	110
	111	AliDigits::~AliDigits()
	112	{
	113	//
	114	//default destructor
	115	if (fIndex !=0 ) {
	116	delete fIndex;
	117	}
	118	if (fElements != 0) {
	119	delete fElements;
	120	}
	121
	122
	123	}
	124
	125
	126	Bool_t AliDigits::OutOfBoundsError(const char *where, Int_t row, Int_t column)
	127	{
	128	// Generate an out-of-bounds error. Always returns false.
	129	::Error(where, "row %d col %d out of bounds (size: %d x %d, this: 0x%08x)",
	130	row, column, fNrows, fNcols, this);
	131	return kFALSE;
	132	}
	133
	134
	135	void AliDigits::Invalidate()
	136	{
	137	//
	138	//set default (invalid parameters)
	139	if (fIndex != 0) delete fIndex;
e756ece8	140	fIndex = new TArrayI;
a46e9031	141
	142	if (fElements!= 0) delete fElements;
	143
e756ece8	144	fElements = new TArrayS;
a46e9031	145
	146	fNrows = fNcols =fNelems= -1;
	147	fElements->Set(0);
	148	fIndex->Set(0);
	149	fBufType = -1;
	150	}
	151
	152	void AliDigits::Allocate(Int_t rows, Int_t columns)
	153	{
	154	//
	155	//construct empty buffer fDigits with size rows x columns
	156	Invalidate();
	157	if (rows <= 0) {
	158	Error("Allocate", "no of rows has to be positive");
	159	return;
	160	}
	161	if (columns <= 0) {
	162	Error("Allocate", "no of columns has to be positive");
	163	return;
	164	}
	165	fNrows = rows;
	166	fNcols=columns;
	167	fNelems = fNrows * fNcols;
	168	fElements->Set(fNelems);
	169	fIndex->Set(fNcols);
	170	for (Int_t i =0,k=0; i<fNcols;i++,k+=fNrows)
	171	(*fIndex)[i]=k;
	172	fBufType =0;
	173	}
	174
	175
	176	Int_t AliDigits::GetSize()
	177	{
	178	//
	179	//return size of object
	180	//
	181	Int_t size = sizeof(this);
	182	if (fIndex!=0) size+= sizeof(fIndex)+fIndex->GetSize()*sizeof(Int_t);
	183	if (fElements!=0) size+= sizeof(fElements)+fElements->GetSize()*sizeof(Short_t);
	184	return size;
	185	}
	186
	187	Int_t AliDigits::GetDigitSize() //return total size of pure digit
	188	{
	189	//
	190	//return size of PURE DIGITS
	191	//
	192	if (fElements==0) return 0;
	193	else return sizeof(fElements)+fElements->GetSize()*sizeof(Short_t);
	194	}
	195
	196	Int_t AliDigits::GetOverTh(Float_t threshold,Float_t x1, Float_t x2, Float_t y1, Float_t y2)
	197	{
	198	//
	199	//return number of digits over threshold
	200	//
	201	if ( (fElements==0) \|\| (fElements->GetSize()<=0)) return 0;
	202
	203	if (x1<=x2) {
	204	x1=0;
	205	x2=fNrows;
	206	}
	207	if (y1<=y2) {
	208	y1=0;
209	y2=fNcols;
210	}
211	Int_t over=0;
212
213	Bool_t cont=First();
214	for ( cont=First(); cont==kTRUE;cont=Next()) {
215	if ( (CurrentRow()<x1) \|\| (CurrentRow()>x2)) continue;
216	if ( (CurrentColumn()<y1) \|\| (CurrentColumn()>y2)) continue;
217	if (CurrentDigit()>threshold) over++;
218	}
219	return over;
220	}
221
222
223	Short_t AliDigits::GetDigit(Int_t row, Int_t column)
224	{
225	//
226	// return digit for given row and collumn
227	if (fBufType ==0) return GetDigitFast(row,column);
228	if (fBufType ==1) return GetDigit1(row,column);
229
230	return 0;
231	}
232
233
234	void AliDigits::ExpandBuffer()
235	{
236	//
237	//expand buffer to two dimensional array
238	if (fBufType<0) {
239	Error("ExpandBuffer", "buffer doesn't exist");
240	return;
241	}
242	if (fBufType==0) return;
243
244	//expanding of buffer type 1
245	if (fBufType==1) ExpandBuffer1();
246
247	fBufType = 0;
248	}
249
250	void AliDigits::CompresBuffer(Int_t bufferType,Int_t threshold)
251	{
252	//
253	//compres buffer according buffertype algorithm
254	if (fBufType<0) {
255	Error("CompressBuffer", "buffer doesn't exist");
256	return;
257	}
258	if (fBufType == bufferType) return;
259	//
260	if (fBufType>0) ExpandBuffer();
261	if (fBufType !=0) {
262	Error("CompressBuffer", "buffer doesn't exist");
263	return;
264	}
265	fThreshold = threshold;
266	//compress buffer of type 1
267	if ( bufferType == 1) CompresBuffer1();//end of compresing bufer of type 1
268	}
269
270	Bool_t AliDigits::First()
271	{
272	//adjust first valid current digit
273	if (fBufType ==0) return First0();
274	if (fBufType ==1) return First1();
275	return kFALSE;
276	}
277
278	Bool_t AliDigits::Next()
279	{
280	//addjust next valid current digit
281	if (fBufType ==0) return Next0();
282	if (fBufType ==1) return Next1();
283	return kFALSE;
284	}
285
286	void AliDigits::AcceptHisto(AliH2F * his)
287	{
288	//
289	//make digits buffer with value according histograms values
290	//for testing purpose
291	Int_t idim =his->GetNbinsX();
292	Int_t jdim =his->GetNbinsY();
293	if ( (idim<1)\|\| (jdim<1)) {
294	return;
295	}
296	//allocate proper buffer size
297	Allocate(idim,jdim);
298	//set digits values
299	for (Int_t i = 0; i<idim;i++)
300	for (Int_t j = 0; j<jdim;j++)
301	{
302	Int_t index = his->GetBin(i+1,j+1);
303	SetDigitFast((Short_t)his->GetBinContent(index),i,j);
304	}
305	}
306
307	AliH2F * AliDigits::GenerHisto()
308	{
309	//
310	//make digits histo
311	char ch[30];
312	sprintf(ch,"Segment_%d ",GetID());
313	if ( (fNrows<1)\|\| (fNcols<1)) {
314	return 0;
315	}
316	AliH2F * his = new AliH2F("Digit histo",ch,fNrows,0,fNrows,fNcols,0,fNcols);
317	ExpandBuffer();
318	//set histogram values
319	for (Int_t i = 0; i<fNrows;i++)
320	for (Int_t j = 0; j<fNcols;j++)
321	his->Fill(i,j,GetDigitFast(i,j));
322	return his;
323	}
324
325	AliH2F AliDigits::DrawDigits(const char option,Float_t x1, Float_t x2, Float_t y1, Float_t y2)
326	{
327	//
328	//draw digits in given array
329	//
330	AliH2F *h2f = GenerHisto();
331	if (x1>=0) {
332	AliH2F *h2fsub = h2f->GetSubrange2d(x1,x2,y1,y2);
333	delete h2f;
334	h2f=h2fsub;
335	}
336	if (h2f==0) return 0;
337	if (option!=0) h2f->Draw(option);
338	else h2f->Draw();
339	return h2f;
340	}
341
342	void AliDigits::ExpandBuffer1()
343	{
344	//
345	//expand buffer of type to twodimensional array
346	Int_t i,k;
347	fNelems = fNrows*fNcols;
348	Short_t * buf = new Short_t[fNelems];
557a9086	349	memset(buf,0,fNelems*sizeof(Short_t)); //MI change - 4.12.2000
a46e9031	350	fIndex->Set(fNcols);
	351	for (i =0,k=0 ;i<fNcols;i++,k+=fNrows) (*fIndex)[i]=k;
	352	Int_t col=0;
	353	Int_t row = 0;
	354	Int_t n=fElements->fN;
	355	for (i=0;i<n;i++){
	356	//oposite signa means how many unwrited (under threshold) values
	357	if ((*fElements)[i]<0) row-=fElements->At(i);
	358	else {
	359	buf[(*fIndex)[col]+row]=fElements->At(i);
	360	row++;
	361	}
	362	if (row==fNrows) {
	363	row=0;
	364	col++;
	365	}else
	366	if (row>fNrows){
	367	Invalidate();
	368	return;
	369	}
	370	}
	371	fElements->Adopt(fNelems,buf);
	372	}
51a4705b	373
a46e9031	374	void AliDigits::CompresBuffer1()
	375	{
	376	//
	377	//compres buffer according algorithm 1
	378	//
e756ece8	379	TArrayS buf; //lets have the nearly the "worst case"
a46e9031	380	buf.Set(fNelems);
e756ece8	381	TArrayI index;
a46e9031	382	index.Set(fNcols);
	383	Int_t icurrent=-1;
	384	Int_t izero;
51a4705b	385	Short_t * cbuff = fElements->GetArray(); //MI change
51a4705b	386
a46e9031	387	for (Int_t col = 0; col<fNcols; col++){
	388	index[col]=icurrent+1;//set collumn pointer
	389	izero = 0; //reset zer counter at the begining of the column
	390	for (Int_t row = 0; row< fNrows;row++){
	391	//if under threshold
51a4705b	392	//if (GetDigitFast(row,col)<=fThreshold) izero++;
	393	if (*cbuff<=fThreshold) izero++;
	394
a46e9031	395	else{
	396	if (izero>0) {
	397	//if we have currently izero count under threshold
	398	icurrent++;
e756ece8	399	if (icurrent>=buf.fN) buf.Set(icurrent*2);
a46e9031	400	buf[icurrent]= -izero; //write how many under zero
	401	izero = 0;
	402	} //end of reseting izero
	403	icurrent++;
e756ece8	404	if (icurrent>=buf.fN) buf.Set(icurrent*2);
51a4705b	405	//buf[icurrent] = GetDigitFast(row,col);
	406	buf[icurrent] = *cbuff;
	407	}//if signal bigger then threshold
	408	cbuff++;
a46e9031	409	} //end of loop over rows
	410	if (izero>0) {
	411	icurrent++;
e756ece8	412	if (icurrent>=buf.fN) buf.Set(icurrent*2);
a46e9031	413	buf[icurrent]= -izero; //write how many under zero
	414	}
	415	}//end of lopping over digits
e756ece8	416	buf.Set(icurrent+1);
a46e9031	417	(*fElements)=buf;
	418	fNelems = fElements->fN;
	419	fBufType = 1;
	420	(*fIndex) =index;
	421	//end of compresing bufer of type 1
	422	}
	423
	424
	425
	426	Bool_t AliDigits::First0()
	427	{
	428	//
	429	//first for the buffer type 0
	430	fCurrentRow = -1;
	431	fCurrentCol = -1;
	432	fCurrentIndex = -1;
	433	Int_t i;
4f57cad7	434	for (i=0; (( i<fNelems) && (fElements->At(i)<=fThreshold));i++) {} //MI1211
a46e9031	435	if (i == fNelems) return kFALSE;
	436	fCurrentCol =i/fNrows;
	437	fCurrentRow =i%fNrows;
	438	fCurrentIndex = i;
	439	return kTRUE;
	440	}
	441
	442	Bool_t AliDigits::Next0()
	443	{
	444	//
	445	//next for the buffer type 0
	446	//
	447	if (fCurrentIndex<0) return kFALSE; // if we didn't adjust first
	448	Int_t i;
4f57cad7	449	for (i=fCurrentIndex+1; ( (i<fNelems) && (fElements->At(i)<=fThreshold) ) ;i++) {}
a46e9031	450	if (i >= fNelems) {
	451	fCurrentIndex = -1;
	452	return kFALSE;
	453	}
	454	fCurrentCol =i/fNrows;
	455	fCurrentRow =i%fNrows;
	456	fCurrentIndex = i;
	457	return kTRUE;
	458	}
	459
	460	Bool_t AliDigits::First1()
	461	{
	462	//
	463	//first for the buffer type 1
	464	fCurrentRow = -1;
	465	fCurrentCol = 0;
	466	fCurrentIndex = -1;
	467	Int_t i;
	468	for (i=0; i<fNelems; i++){
	469	if (fElements->At(i) < 0) fCurrentRow-=fElements->At(i);
	470	else
	471	fCurrentRow++;
	472	if (fCurrentRow>=fNrows) {
	473	fCurrentCol++;
	474	fCurrentRow-=fNrows;
	475	}
	476	if (fElements->At(i)>fThreshold) break;
	477	}
	478	fCurrentIndex = i;
a1681743	479	if (fCurrentIndex>=0&&i<fNelems) return kTRUE;
a46e9031	480	fCurrentRow =-1;
	481	fCurrentCol =-1;
	482	return kFALSE;
	483	}
	484
	485	Bool_t AliDigits::Next1()
	486	{
	487	//
	488	//next for the buffer type 1
	489	if (fCurrentIndex<0) return kFALSE; // if we didn't adjust first
	490	Int_t i;
	491	for (i=fCurrentIndex+1; i<fNelems;i++){
	492	if (fElements->At(i) < 0) fCurrentRow-=fElements->At(i);
	493	else
	494	fCurrentRow++;
	495	if (fCurrentRow>=fNrows) {
	496	fCurrentCol++;
	497	fCurrentRow-=fNrows;
	498	}
	499	if (fElements->At(i)>fThreshold) break;
	500	}
	501	fCurrentIndex = i;
	502	if ( (i>=0) && (i<fNelems) ) return kTRUE;
	503	fCurrentRow =-1;
	504	fCurrentCol =-1;
	505	return kFALSE;
	506	}
	507
	508	Short_t AliDigits::GetDigit1(Int_t row, Int_t column)
	509	{
	510	//
	511	//return digit for given row and column the buffer type 1
	512	//no control performed
	513
	514	Int_t i,n2;
	515	if ( (column+1)>=fNcols) n2 = fNelems;
	516	else
	517	n2 = fIndex->At(column+1);
	518	Int_t irow = 0; //current row
	519
	520	for (i=fIndex->At(column); ( (i<n2) && (irow<row) );i++){
	521	if (fElements->At(i) < 0) irow-=fElements->At(i);
	522	else
	523	irow++;
	524	}
	525	if ( irow == row ) return fElements->At(i);
	526	return -1;
	527	}
	528