[u/mrichter/AliRoot.git] / TRD / AliTRDarraySignal.cxx

/************************************************************************* 
* Copyright(c) 1998-2008, 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: AliTRDarraySignal.cxx 25392 2008-04-23 19:40:29Z cblume $ */

/////////////////////////////////////////////////////////
//                                                     //
// Container Class for Signals                         //
//                                                     //
// Author:                                             //
//   Hermes Leon Vargas (hleon@ikf.uni-frankfurt.de)   //
//                                                     //
/////////////////////////////////////////////////////////

#include <TArray.h>

#include "AliTRDarraySignal.h"
#include "AliTRDfeeParam.h"

ClassImp(AliTRDarraySignal)

Short_t *AliTRDarraySignal::fgLutPadNumbering = 0x0;

//_______________________________________________________________________
AliTRDarraySignal::AliTRDarraySignal()
                  :TObject()
                  ,fNdet(0)
                  ,fNrow(0)
                  ,fNcol(0)
         	  ,fNumberOfChannels(0)
                  ,fNtime(0)
                  ,fNdim(0)  
                  ,fSignal(0)
{

  //
  // AliTRDarraySignal default constructor
  //

  CreateLut();
	   
}

//_______________________________________________________________________
AliTRDarraySignal::AliTRDarraySignal(Int_t nrow, Int_t ncol,Int_t ntime)
                  :TObject()
                  ,fNdet(0)
                  ,fNrow(0)
                  ,fNcol(0)
	          ,fNumberOfChannels(0)
                  ,fNtime(0)
                  ,fNdim(0)
                  ,fSignal(0)
{
  //
  // AliTRDarraySignal constructor
  //

  CreateLut(); 
  Allocate(nrow,ncol,ntime);

}

//_______________________________________________________________________
AliTRDarraySignal::AliTRDarraySignal(const AliTRDarraySignal &d)
                  :TObject()
		  ,fNdet(d.fNdet)
		  ,fNrow(d.fNrow)
		  ,fNcol(d.fNcol)
                  ,fNumberOfChannels(d.fNumberOfChannels)
		  ,fNtime(d.fNtime)
		  ,fNdim(d.fNdim)
		  ,fSignal(0)
{
  //
  // AliTRDarraySignal copy constructor
  //

  fSignal = new Float_t[fNdim];
  memcpy(fSignal, d.fSignal, fNdim*sizeof(Float_t));

}

//_______________________________________________________________________
AliTRDarraySignal::~AliTRDarraySignal()
{
  //
  // AliTRDarraySignal destructor
  //

  delete [] fSignal;
  fSignal=0;  

}

//_______________________________________________________________________
AliTRDarraySignal &AliTRDarraySignal::operator=(const AliTRDarraySignal &d)
{
  //
  // Assignment operator
  //

  if (this==&d) 
    {
      return *this;
    }

  if (fSignal)
    {
      delete [] fSignal;
    }
  fNdet=d.fNdet;
  fNrow=d.fNrow;
  fNcol=d.fNcol;
  fNumberOfChannels = d.fNumberOfChannels;
  fNtime=d.fNtime;
  fNdim=d.fNdim;
  fSignal = new Float_t[fNdim];
  memcpy(fSignal,d.fSignal, fNdim*sizeof(Float_t));

  return *this;

}

//_______________________________________________________________________
void AliTRDarraySignal::Allocate(Int_t nrow, Int_t ncol, Int_t ntime)
{
  //
  // Allocates memory for an AliTRDarraySignal object with dimensions 
  // Row*NumberOfNecessaryMCMs*ADCchannelsInMCM*Time
  // To be consistent with AliTRDarrayADC
  //

  fNrow=nrow;
  fNcol=ncol;
  fNtime=ntime;
  Int_t adcchannelspermcm = AliTRDfeeParam::GetNadcMcm(); 
  Int_t padspermcm = AliTRDfeeParam::GetNcolMcm(); 
  Int_t numberofmcms = fNcol/padspermcm; 
  fNumberOfChannels = numberofmcms*adcchannelspermcm;
  fNdim = nrow*fNumberOfChannels*ntime;
  if (fSignal)   
    {
      delete [] fSignal;
    }
  fSignal = new Float_t[fNdim];
  memset(fSignal,0,sizeof(Float_t)*fNdim);

}

//_______________________________________________________________________
Int_t AliTRDarraySignal::GetOverThreshold(Float_t threshold) const
{
  //
  // Get the number of entries over the threshold 
  //

  Int_t counter=0;
  for(Int_t i=0; i<fNdim; i++)
    {
      if(fSignal[i]>threshold)
	{
	  counter++;
	}
    }
  return counter;

}

//_______________________________________________________________________
void AliTRDarraySignal::Compress(Float_t minval)
{
  //
  // Compress the array, setting values equal or 
  // below minval to zero (minval>=0)
  //

  Int_t counter=0;
  Int_t newDim=0;
  Int_t j;                 
  Int_t r=0;
  Int_t k=0;

  Int_t *longArr = new Int_t[fNdim];  

  if(longArr) 
    {

      //Initialize the array
      memset(longArr,0,sizeof(Int_t)*fNdim);

      for(Int_t i=0;i<fNdim; i++)
        {
          j=0;
          if(fSignal[i]<=minval) 
	    {
	      for(k=i;k<fNdim;k++)
	        {
	          if(fSignal[k]<=minval)
		    {
		      j=j+1;
		      longArr[r]=j;
	  	    }
	          else
		    {
		      break;
		    }
	        } 
	      r=r+1;          
	    }
          i=i+j;
        }

      //Calculate the size of the compressed array
      for(Int_t i=0; i<fNdim;i++)
        {
          if(longArr[i]!=0)   
	    {
	      counter=counter+longArr[i]-1;
	    }
        }
      newDim=fNdim-counter;   //New dimension

      //Fill the buffer of the compressed array
      Float_t* buffer = new Float_t[newDim];
      Int_t counterTwo=0;

      if(buffer)
        {

          //Write the new array
          Int_t g=0;
          for(Int_t i=0; i<newDim; i++)
            {
              if(counterTwo<fNdim)
	        {
	          if(fSignal[counterTwo]>minval)   
	            {
	              buffer[i]=fSignal[counterTwo];
	            }
	          if(fSignal[counterTwo]<=minval)   
	            {
	              buffer[i]=-(longArr[g]);
	              counterTwo=counterTwo+longArr[g]-1;
	              g++;
	            }  
	          counterTwo++;
	        }
            }

          //Copy the buffer
          if(fSignal)
            {
              delete [] fSignal;
              fSignal=0;
            }
          fSignal = new Float_t[newDim];
          fNdim = newDim;
          for(Int_t i=0; i<newDim; i++)
            {
              fSignal[i] = buffer[i]; 
            }

          delete [] buffer;
          buffer=0;

        } 

      delete [] longArr;
      longArr=0;

    }

}

//_______________________________________________________________________
void AliTRDarraySignal::Expand()
{
  //
  // Expand the array
  //

  if(fSignal)
    {

      //Check if the array has not been already expanded
      Int_t verif=0;
      for(Int_t i=0; i<fNdim; i++)
        {
          if(fSignal[i]<0)
	    {
	      verif++;
	    }
        }

      if(verif==0)
        {
          return;
        }

      Int_t dimexp=0;
      Int_t *longArr = new Int_t[fNdim];

      if(longArr)
	{

          memset(longArr,0,sizeof(Int_t)*fNdim);

          Int_t r2=0;
          for(Int_t i=0; i<fNdim;i++)
            {
              if(fSignal[i]<0)  
	        {
	          longArr[r2]=(Int_t)(-fSignal[i]); 
	          r2++;
	        }
            }

          //Calculate new dimensions
          for(Int_t i=0; i<fNdim;i++)
            {
              if(longArr[i]!=0)      
	        {
	          dimexp=dimexp+longArr[i]-1;
	        }
            }
          dimexp=dimexp+fNdim;   //Dimension of the expanded array

          //Write in the buffer the new array
          Int_t contaexp =0;    
          Int_t h=0;
          Float_t* bufferE = new Float_t[dimexp];

          if(bufferE)
	    {

              for(Int_t i=0; i<dimexp; i++)
                {
                  if(fSignal[contaexp]>0)  
	            {
	              bufferE[i]=fSignal[contaexp];
	            }
                  if(fSignal[contaexp]<0)  
 	            {
	              for(Int_t j=0; j<longArr[h];j++)
	                {
	                  bufferE[i+j]=0;
	                }
	              i=i+longArr[h]-1;
	              h++;
	            }
                  contaexp++;
                }

              //Copy the buffer
              delete [] fSignal;
              fSignal=0;
              fSignal = new Float_t[dimexp];
              fNdim = dimexp;
              for(Int_t i=0; i<dimexp; i++)
                {
                  fSignal[i] = bufferE[i]; 
                }

              delete [] bufferE;

	    }

          delete [] longArr;

        }

    }

}
//________________________________________________________________________________
void AliTRDarraySignal::Reset()
{
  //
  // Reset the array, the old contents are deleted
  // The array keeps the same dimensions as before
  //

  memset(fSignal,0,sizeof(Float_t)*fNdim);

}
//________________________________________________________________________________
Float_t AliTRDarraySignal::GetData(Int_t nrow, Int_t ncol, Int_t ntime) const
{
  //
  // Get the data using the pad numbering.
  // To access data using the mcm scheme use instead
  // the method GetDataByAdcCol
  //

  Int_t corrcolumn = fgLutPadNumbering[ncol];

  return fSignal[(nrow*fNumberOfChannels+corrcolumn)*fNtime+ntime];

}
//________________________________________________________________________________
void AliTRDarraySignal::SetData(Int_t nrow, Int_t ncol, Int_t ntime, Float_t value)
{
  //
  // Set the data using the pad numbering.
  // To write data using the mcm scheme use instead
  // the method SetDataByAdcCol
  //

  Int_t colnumb = fgLutPadNumbering[ncol];

  fSignal[(nrow*fNumberOfChannels+colnumb)*fNtime+ntime]=value;

}

//________________________________________________________________________________
void AliTRDarraySignal::CreateLut()
{
  //
  // Initializes the Look Up Table to relate
  // pad numbering and mcm channel numbering
  //

  if(fgLutPadNumbering)  return;
  
   fgLutPadNumbering = new Short_t[AliTRDfeeParam::GetNcol()];
   memset(fgLutPadNumbering,0,sizeof(Short_t)*AliTRDfeeParam::GetNcol());

  for(Int_t mcm=0; mcm<8; mcm++)
    {
      Int_t lowerlimit=0+mcm*18;
      Int_t upperlimit=18+mcm*18;
      Int_t shiftposition = 1+3*mcm;
      for(Int_t index=lowerlimit;index<upperlimit;index++)
	{
	  fgLutPadNumbering[index]=index+shiftposition;
	}
    }
}
Commit	Line	Data
b65e5048	1	/*************************************************************************
	2	* Copyright(c) 1998-2008, 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	/* $Id: AliTRDarraySignal.cxx 25392 2008-04-23 19:40:29Z cblume $ */
	17
	18	/////////////////////////////////////////////////////////
	19	// //
	20	// Container Class for Signals //
	21	// //
	22	// Author: //
	23	// Hermes Leon Vargas (hleon@ikf.uni-frankfurt.de) //
	24	// //
	25	/////////////////////////////////////////////////////////
	26
a9151110	27	#include <TArray.h>
a9151110	28
b65e5048	29	#include "AliTRDarraySignal.h"
acf20e8f	30	#include "AliTRDfeeParam.h"
b65e5048	31
	32	ClassImp(AliTRDarraySignal)
	33
f41a4d6a	34	Short_t *AliTRDarraySignal::fgLutPadNumbering = 0x0;
acf20e8f	35
b65e5048	36	//_______________________________________________________________________
	37	AliTRDarraySignal::AliTRDarraySignal()
	38	:TObject()
	39	,fNdet(0)
	40	,fNrow(0)
	41	,fNcol(0)
acf20e8f	42	,fNumberOfChannels(0)
b65e5048	43	,fNtime(0)
	44	,fNdim(0)
	45	,fSignal(0)
	46	{
	47
	48	//
	49	// AliTRDarraySignal default constructor
	50	//
acf20e8f	51
acf20e8f	52	CreateLut();
b65e5048	53
	54	}
	55
	56	//_______________________________________________________________________
	57	AliTRDarraySignal::AliTRDarraySignal(Int_t nrow, Int_t ncol,Int_t ntime)
	58	:TObject()
	59	,fNdet(0)
	60	,fNrow(0)
	61	,fNcol(0)
acf20e8f	62	,fNumberOfChannels(0)
b65e5048	63	,fNtime(0)
	64	,fNdim(0)
	65	,fSignal(0)
	66	{
	67	//
	68	// AliTRDarraySignal constructor
	69	//
acf20e8f	70
acf20e8f	71	CreateLut();
b65e5048	72	Allocate(nrow,ncol,ntime);
	73
	74	}
	75
	76	//_______________________________________________________________________
	77	AliTRDarraySignal::AliTRDarraySignal(const AliTRDarraySignal &d)
	78	:TObject()
	79	,fNdet(d.fNdet)
	80	,fNrow(d.fNrow)
	81	,fNcol(d.fNcol)
acf20e8f	82	,fNumberOfChannels(d.fNumberOfChannels)
b65e5048	83	,fNtime(d.fNtime)
	84	,fNdim(d.fNdim)
	85	,fSignal(0)
	86	{
	87	//
	88	// AliTRDarraySignal copy constructor
	89	//
	90
	91	fSignal = new Float_t[fNdim];
064d808d	92	memcpy(fSignal, d.fSignal, fNdim*sizeof(Float_t));
b65e5048	93
	94	}
	95
	96	//_______________________________________________________________________
	97	AliTRDarraySignal::~AliTRDarraySignal()
	98	{
	99	//
	100	// AliTRDarraySignal destructor
	101	//
	102
04e58504	103	delete [] fSignal;
04e58504	104	fSignal=0;
b65e5048	105
	106	}
	107
	108	//_______________________________________________________________________
	109	AliTRDarraySignal &AliTRDarraySignal::operator=(const AliTRDarraySignal &d)
	110	{
	111	//
	112	// Assignment operator
	113	//
	114
	115	if (this==&d)
	116	{
	117	return *this;
	118	}
	119
	120	if (fSignal)
	121	{
	122	delete [] fSignal;
	123	}
	124	fNdet=d.fNdet;
	125	fNrow=d.fNrow;
	126	fNcol=d.fNcol;
acf20e8f	127	fNumberOfChannels = d.fNumberOfChannels;
b65e5048	128	fNtime=d.fNtime;
	129	fNdim=d.fNdim;
	130	fSignal = new Float_t[fNdim];
064d808d	131	memcpy(fSignal,d.fSignal, fNdim*sizeof(Float_t));
b65e5048	132
	133	return *this;
	134
	135	}
	136
	137	//_______________________________________________________________________
	138	void AliTRDarraySignal::Allocate(Int_t nrow, Int_t ncol, Int_t ntime)
	139	{
	140	//
	141	// Allocates memory for an AliTRDarraySignal object with dimensions
acf20e8f	142	// RowNumberOfNecessaryMCMsADCchannelsInMCM*Time
acf20e8f	143	// To be consistent with AliTRDarrayADC
b65e5048	144	//
	145
	146	fNrow=nrow;
	147	fNcol=ncol;
	148	fNtime=ntime;
acf20e8f	149	Int_t adcchannelspermcm = AliTRDfeeParam::GetNadcMcm();
	150	Int_t padspermcm = AliTRDfeeParam::GetNcolMcm();
	151	Int_t numberofmcms = fNcol/padspermcm;
	152	fNumberOfChannels = numberofmcms*adcchannelspermcm;
	153	fNdim = nrowfNumberOfChannelsntime;
b65e5048	154	if (fSignal)
	155	{
	156	delete [] fSignal;
	157	}
	158	fSignal = new Float_t[fNdim];
064d808d	159	memset(fSignal,0,sizeof(Float_t)*fNdim);
b65e5048	160
	161	}
	162
	163	//_______________________________________________________________________
f41a4d6a	164	Int_t AliTRDarraySignal::GetOverThreshold(Float_t threshold) const
b65e5048	165	{
	166	//
	167	// Get the number of entries over the threshold
	168	//
	169
	170	Int_t counter=0;
	171	for(Int_t i=0; i<fNdim; i++)
	172	{
	173	if(fSignal[i]>threshold)
	174	{
	175	counter++;
	176	}
	177	}
	178	return counter;
	179
	180	}
	181
	182	//_______________________________________________________________________
	183	void AliTRDarraySignal::Compress(Float_t minval)
	184	{
	185	//
	186	// Compress the array, setting values equal or
	187	// below minval to zero (minval>=0)
	188	//
	189
	190	Int_t counter=0;
	191	Int_t newDim=0;
	192	Int_t j;
	193	Int_t r=0;
b65e5048	194	Int_t k=0;
b65e5048	195
024c0422	196	Int_t *longArr = new Int_t[fNdim];
b65e5048	197
024c0422	198	if(longArr)
b65e5048	199	{
b65e5048	200
024c0422	201	//Initialize the array
024c0422	202	memset(longArr,0,sizeof(Int_t)*fNdim);
b65e5048	203
024c0422	204	for(Int_t i=0;i<fNdim; i++)
	205	{
	206	j=0;
	207	if(fSignal[i]<=minval)
b65e5048	208	{
024c0422	209	for(k=i;k<fNdim;k++)
	210	{
	211	if(fSignal[k]<=minval)
	212	{
	213	j=j+1;
	214	longArr[r]=j;
	215	}
	216	else
	217	{
	218	break;
	219	}
	220	}
	221	r=r+1;
b65e5048	222	}
024c0422	223	i=i+j;
	224	}
	225
	226	//Calculate the size of the compressed array
	227	for(Int_t i=0; i<fNdim;i++)
	228	{
	229	if(longArr[i]!=0)
b65e5048	230	{
024c0422	231	counter=counter+longArr[i]-1;
	232	}
	233	}
	234	newDim=fNdim-counter; //New dimension
	235
	236	//Fill the buffer of the compressed array
	237	Float_t* buffer = new Float_t[newDim];
	238	Int_t counterTwo=0;
	239
	240	if(buffer)
	241	{
	242
	243	//Write the new array
	244	Int_t g=0;
	245	for(Int_t i=0; i<newDim; i++)
	246	{
	247	if(counterTwo<fNdim)
	248	{
	249	if(fSignal[counterTwo]>minval)
	250	{
	251	buffer[i]=fSignal[counterTwo];
	252	}
	253	if(fSignal[counterTwo]<=minval)
	254	{
	255	buffer[i]=-(longArr[g]);
	256	counterTwo=counterTwo+longArr[g]-1;
	257	g++;
	258	}
	259	counterTwo++;
	260	}
	261	}
	262
	263	//Copy the buffer
	264	if(fSignal)
	265	{
	266	delete [] fSignal;
	267	fSignal=0;
	268	}
	269	fSignal = new Float_t[newDim];
	270	fNdim = newDim;
	271	for(Int_t i=0; i<newDim; i++)
	272	{
	273	fSignal[i] = buffer[i];
	274	}
	275
	276	delete [] buffer;
	277	buffer=0;
	278
	279	}
b65e5048	280
b65e5048	281	delete [] longArr;
b65e5048	282	longArr=0;
024c0422	283
b65e5048	284	}
	285
	286	}
	287
	288	//_______________________________________________________________________
	289	void AliTRDarraySignal::Expand()
	290	{
	291	//
	292	// Expand the array
	293	//
	294
af63084f	295	if(fSignal)
b65e5048	296	{
b65e5048	297
af63084f	298	//Check if the array has not been already expanded
	299	Int_t verif=0;
	300	for(Int_t i=0; i<fNdim; i++)
	301	{
	302	if(fSignal[i]<0)
	303	{
	304	verif++;
	305	}
	306	}
b65e5048	307
af63084f	308	if(verif==0)
	309	{
	310	return;
	311	}
b65e5048	312
af63084f	313	Int_t dimexp=0;
af63084f	314	Int_t *longArr = new Int_t[fNdim];
b65e5048	315
af63084f	316	if(longArr)
b65e5048	317	{
af63084f	318
	319	memset(longArr,0,sizeof(Int_t)*fNdim);
	320
	321	Int_t r2=0;
	322	for(Int_t i=0; i<fNdim;i++)
	323	{
	324	if(fSignal[i]<0)
	325	{
	326	longArr[r2]=(Int_t)(-fSignal[i]);
	327	r2++;
	328	}
	329	}
	330
	331	//Calculate new dimensions
	332	for(Int_t i=0; i<fNdim;i++)
	333	{
	334	if(longArr[i]!=0)
	335	{
	336	dimexp=dimexp+longArr[i]-1;
	337	}
	338	}
	339	dimexp=dimexp+fNdim; //Dimension of the expanded array
	340
	341	//Write in the buffer the new array
	342	Int_t contaexp =0;
	343	Int_t h=0;
	344	Float_t* bufferE = new Float_t[dimexp];
	345
	346	if(bufferE)
b65e5048	347	{
af63084f	348
	349	for(Int_t i=0; i<dimexp; i++)
	350	{
	351	if(fSignal[contaexp]>0)
	352	{
	353	bufferE[i]=fSignal[contaexp];
	354	}
	355	if(fSignal[contaexp]<0)
	356	{
	357	for(Int_t j=0; j<longArr[h];j++)
	358	{
	359	bufferE[i+j]=0;
	360	}
	361	i=i+longArr[h]-1;
	362	h++;
	363	}
	364	contaexp++;
	365	}
	366
	367	//Copy the buffer
	368	delete [] fSignal;
	369	fSignal=0;
	370	fSignal = new Float_t[dimexp];
	371	fNdim = dimexp;
	372	for(Int_t i=0; i<dimexp; i++)
	373	{
	374	fSignal[i] = bufferE[i];
	375	}
	376
	377	delete [] bufferE;
	378
b65e5048	379	}
b65e5048	380
af63084f	381	delete [] longArr;
b65e5048	382
af63084f	383	}
b65e5048	384
af63084f	385	}
b65e5048	386
b65e5048	387	}
705d9e7b	388	//________________________________________________________________________________
	389	void AliTRDarraySignal::Reset()
	390	{
	391	//
	392	// Reset the array, the old contents are deleted
	393	// The array keeps the same dimensions as before
	394	//
	395
	396	memset(fSignal,0,sizeof(Float_t)*fNdim);
	397
	398	}
acf20e8f	399	//________________________________________________________________________________
	400	Float_t AliTRDarraySignal::GetData(Int_t nrow, Int_t ncol, Int_t ntime) const
	401	{
	402	//
	403	// Get the data using the pad numbering.
	404	// To access data using the mcm scheme use instead
	405	// the method GetDataByAdcCol
	406	//
	407
f41a4d6a	408	Int_t corrcolumn = fgLutPadNumbering[ncol];
acf20e8f	409
	410	return fSignal[(nrowfNumberOfChannels+corrcolumn)fNtime+ntime];
	411
	412	}
	413	//________________________________________________________________________________
	414	void AliTRDarraySignal::SetData(Int_t nrow, Int_t ncol, Int_t ntime, Float_t value)
	415	{
	416	//
	417	// Set the data using the pad numbering.
	418	// To write data using the mcm scheme use instead
	419	// the method SetDataByAdcCol
	420	//
	421
f41a4d6a	422	Int_t colnumb = fgLutPadNumbering[ncol];
acf20e8f	423
	424	fSignal[(nrowfNumberOfChannels+colnumb)fNtime+ntime]=value;
	425
	426	}
	427
	428	//________________________________________________________________________________
	429	void AliTRDarraySignal::CreateLut()
	430	{
	431	//
	432	// Initializes the Look Up Table to relate
	433	// pad numbering and mcm channel numbering
	434	//
	435
f41a4d6a	436	if(fgLutPadNumbering) return;
acf20e8f	437
f41a4d6a	438	fgLutPadNumbering = new Short_t[AliTRDfeeParam::GetNcol()];
f41a4d6a	439	memset(fgLutPadNumbering,0,sizeof(Short_t)*AliTRDfeeParam::GetNcol());
acf20e8f	440
	441	for(Int_t mcm=0; mcm<8; mcm++)
	442	{
	443	Int_t lowerlimit=0+mcm*18;
	444	Int_t upperlimit=18+mcm*18;
	445	Int_t shiftposition = 1+3*mcm;
	446	for(Int_t index=lowerlimit;index<upperlimit;index++)
	447	{
f41a4d6a	448	fgLutPadNumbering[index]=index+shiftposition;
acf20e8f	449	}
	450	}
	451	}