[u/mrichter/AliRoot.git] / MUON / AliMUONTriggerSegmentation.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.                  *
 **************************************************************************/

/* $Id$ */

//**********************************************************************
// Segmentation classe for trigger chambers.
// In the present version the method use global strip coordinates except
// HasPad. The conversion is made via GetPadLoc2Glo.
// To be improved in the future.
//**********************************************************************

#include "AliMUONTriggerSegmentation.h"
#include "AliLog.h"

//___________________________________________
ClassImp(AliMUONTriggerSegmentation)

AliMUONTriggerSegmentation::AliMUONTriggerSegmentation() 
  : AliMUONVGeometryDESegmentation(),
    fBending(0),
    fId(0),
    fNsec(7),
    fNpx(999999),
    fNpy(999999),
    fXhit(0.),
    fYhit(0.),
    fIx(0),
    fIy(0),
    fX(0.),
    fY(0.),
// add to St345SlatSegmentation
    fLineNumber(0),
    fRpcHalfXsize(0),
    fRpcHalfYsize(0)
{
// add to St345SlatSegmentation
  for (Int_t i=0; i<7; i++) {
      fNstrip[i]=0;
      fStripYsize[i]=0.;   
      fStripXsize[i]=0.;  
      fModuleXmin[i]=0.;
      fModuleXmax[i]=0.;  
      fModuleYmin[i]=0.;  
  }
}


//___________________________________________
AliMUONTriggerSegmentation::AliMUONTriggerSegmentation(Bool_t bending) 
  : AliMUONVGeometryDESegmentation(),
    fBending(bending),
    fId(0),
    fNpx(999999),
    fNpy(999999),
    fXhit(0.),
    fYhit(0.),
    fIx(0),
    fIy(0),
    fX(0.),
    fY(0.),
// add to St345SlatSegmentation
    fLineNumber(0),
    fRpcHalfXsize(0),
    fRpcHalfYsize(0)
{
  // Non default constructor
  fNsec = 7;  
// add to St345SlatSegmentation
  for (Int_t i=0; i<7; i++) {
      fNstrip[i]=0;
      fStripYsize[i]=0.;   
      fStripXsize[i]=0.;  
      fModuleXmin[i]=0.;
      fModuleXmax[i]=0.;  
      fModuleYmin[i]=0.;  
  }
}

//----------------------------------------------------------------------
AliMUONTriggerSegmentation::AliMUONTriggerSegmentation(const AliMUONTriggerSegmentation& rhs) : AliMUONVGeometryDESegmentation(rhs)
{
  AliFatal("Not implemented.");
}
//----------------------------------------------------------------------
AliMUONTriggerSegmentation::~AliMUONTriggerSegmentation() 
{
  // Destructor
    ;    
}
//----------------------------------------------------------------------
AliMUONTriggerSegmentation& AliMUONTriggerSegmentation::operator=(const AliMUONTriggerSegmentation& rhs)
{
// Protected assignement operator
  if (this == &rhs) return *this;
  AliFatal("Not implemented.");
  return *this;  
}
//----------------------------------------------------------------------
Int_t AliMUONTriggerSegmentation::ModuleColNum(Int_t ix)
{
// returns column number (from 0 to 6) in which the (global) module 
// ix is sitting (could return 7 if ix=isec)
    return TMath::Abs(ix)-Int_t(TMath::Abs(ix)/10)*10-1;
}
//----------------------------------------------------------------------
Bool_t AliMUONTriggerSegmentation::HasPad(Int_t ix, Int_t iy)
{
// check if steping outside the limits (iy=1,2... iy=0,1...)
    Bool_t hasPad = true;    
    Int_t ixGlo = 0;
    Int_t iyGlo = 0; 
    GetPadLoc2Glo(ix, iy, ixGlo, iyGlo);
    if (iyGlo>=fNstrip[ModuleColNum(ixGlo)]) hasPad = false;
    return hasPad;    
}
//____________________________________________________________________________
Float_t AliMUONTriggerSegmentation::Dpx(Int_t isec) const
{
// return x-strip width in sector isec
    Float_t size = (isec<8) ? fStripXsize[isec-1] : fStripXsize[isec-2]/2.;
    return size;
}
//____________________________________________________________________________
Float_t AliMUONTriggerSegmentation::Dpy(Int_t  isec) const
{
// return y-strip width in sector isec
    Float_t size = (isec<8) ? fStripYsize[isec-1] : fStripYsize[isec-2];
    return size;
}
//----------------------------------------------------------------------------
void AliMUONTriggerSegmentation::GetPadLoc2Glo(Int_t ixLoc, Int_t iyLoc, 
					       Int_t &ixGlo, Int_t &iyGlo)
{    
// converts ixLoc & iyLoc into ixGlo & iyGLo (module,strip number)
    ixGlo = 0; // see AliMUONTriggerConstants::fgkModuleI
    iyGlo = 0; // from 0 to (fNtrip-1) in module   
    if (fBending) { 
	ixGlo = 10*fLineNumber + ixLoc;
	iyGlo = iyLoc - 1;
    } else if (!fBending) {	
	Int_t iCountStrip = 0;	
	for (Int_t iModule=0; iModule<fNsec; iModule++) {		
	    for (Int_t iStrip=0; iStrip<fNstrip[iModule]; iStrip++) {
		if ((ixLoc-1)==iCountStrip) {
		    ixGlo = 10*fLineNumber + iModule + 1;
		    iyGlo = iStrip;
		}
		iCountStrip++;
	    }
	}
    }
//    printf(" in GetPadLoc2Glo fbending ixLoc iyLoc ixGlo iyGlo %i %i %i %i \n",fBending,ixLoc,iyLoc,ixGlo,iyGlo);
}

//----------------------------------------------------------------------------
void AliMUONTriggerSegmentation::GetPadGlo2Loc(Int_t ixGlo, Int_t iyGlo, 
					       Int_t &ixLoc, Int_t &iyLoc)
{    
// converts ixGlo & iyGlo into ixLoc & iyLoc 
    ixLoc = 0; 
    iyLoc = 0; 
    if (fBending) { 
	ixLoc = ModuleColNum(ixGlo) + 1;
	iyLoc = iyGlo + 1;
    } else if (!fBending) {	
	Int_t iCountStrip = 1;	
	for (Int_t iModule=0; iModule<fNsec; iModule++) {		
	    for (Int_t iStrip=0; iStrip<fNstrip[iModule]; iStrip++) {
		if ((iModule==ModuleColNum(ixGlo))&&(iStrip==iyGlo)) {
		    ixLoc = 1;		    
		    iyLoc = iCountStrip;
		}		
		iCountStrip++;
	    }
	}
    }    
//    printf(" in GetPadGlo2Loc fBending ixGlo iyGlo ixLoc iyLoc %i %i %i %i %i \n",fBending,ixGlo,iyGlo,ixLoc,iyLoc);
}

//----------------------------------------------------------------------------
void AliMUONTriggerSegmentation::GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y) 
{
// Returns local real coordinates (x,y) for local pad coordinates (ix,iy)

    x = 0.;
    y = 0.;
    Int_t iModule = ModuleColNum(ix); // find column number (0-6)
    if (fBending) {
	if (iModule==0) {
	    x =  fStripXsize[iModule]/ 2.;
	} else {	
	x = fModuleXmax[iModule-1] + fStripXsize[iModule]/2.;
	}
	y =  fModuleYmin[iModule] + 
	    iy*fStripYsize[iModule] + fStripYsize[iModule]/2.;
    } else if (!fBending) {
	if (ModuleColNum(ix)==6 && iy>7) {
	    x = fModuleXmin[iModule] + 8*fStripXsize[iModule] +
		(iy-8)*fStripXsize[iModule]/2. + fStripXsize[iModule]/4.;
	} else {	    
	    x = fModuleXmin[iModule] + 
		iy*fStripXsize[iModule] + fStripXsize[iModule]/2.;
	}
	y =  fModuleYmin[iModule] + fStripYsize[iModule] / 2.;
    }    
    x = x - fRpcHalfXsize;
    y = y - fRpcHalfYsize;

//    printf(" in GetPadC fBending ix iy x y %i %i %i %f %f \n",fBending,ix,iy,x,y);
}

//_____________________________________________________________________________
void AliMUONTriggerSegmentation::GetPadI(Float_t x, Float_t y, Int_t &ix, Int_t &iy) 
{
//  Returns global pad coordinates (ix,iy) for local real coordinates (x,y)
    x = x + fRpcHalfXsize;
    y = y + fRpcHalfYsize;
// find module number    
    Int_t modNum=0;    
    for (Int_t iModule=0; iModule<fNsec; iModule++) { // modules
	if ( x > fModuleXmin[iModule] && x < fModuleXmax[iModule] ) {
	    ix = 10*fLineNumber + iModule + 1;
	    modNum = iModule;	    
	}
    }

// find strip number 
    Float_t yMin = 0.;    
    Float_t yMax = fModuleYmin[modNum];
    Float_t xMin = 0.;
    Float_t xMax = fModuleXmin[modNum];
    if (ix!=0) {
	for (Int_t iStrip=0; iStrip<fNstrip[modNum]; iStrip++) {
	    if (fBending) {
		yMin = yMax;
		yMax = yMin + fStripYsize[modNum];
		if (y > yMin && y < yMax) iy = iStrip;
	    } else if (!fBending) {
		xMin = xMax;
		if (modNum==6 && iStrip>7) {
		    xMax = xMin + fStripXsize[modNum]/2.;
		} else {		    
		    xMax = xMin + fStripXsize[modNum];
		}		
		if (x > xMin && x < xMax) iy = iStrip;
	    } //
	} // loop on strips
    } // if ix!=0
//    printf("in GetPadI fBending x y ix iy %i %f %f %i %i \n",fBending,x,y,ix,iy);
}
//-------------------------------------------------------------------------
void AliMUONTriggerSegmentation::GetPadI(Float_t x, Float_t y , Float_t /*z*/, Int_t &ix, Int_t &iy)
{
  GetPadI(x, y, ix, iy);
}

//-------------------------------------------------------------------------
void AliMUONTriggerSegmentation::SetLineNumber(Int_t iLineNumber){
    fLineNumber = iLineNumber;    
}
//-------------------------------------------------------------------------
void AliMUONTriggerSegmentation::SetPad(Int_t ix, Int_t iy)
{
  // Sets virtual pad coordinates, needed for evaluating pad response 
  // outside the tracking program 
  GetPadC(ix,iy,fX,fY);
  fIx = ix; // used in IntegrationLimits
  fIy = iy;    
  fSector=Sector(ix,iy);
}
//---------------------------------------------------------------------------
void AliMUONTriggerSegmentation::SetHit(Float_t x, Float_t y)
{
  // Set current hit 
  fXhit = x;
  fYhit = y;
}
//----------------------------------------------------------------------------
void AliMUONTriggerSegmentation::SetHit(Float_t xhit, Float_t yhit, Float_t /*zhit*/)
{
  SetHit(xhit, yhit);
}

//--------------------------------------------------------------------------
Int_t AliMUONTriggerSegmentation::Sector(Int_t ix, Int_t iy) 
{
// determine segmentation zone from pad coordinates (from 1 to 8)
    if (!fBending && ModuleColNum(ix)==6 && iy>7) {
	return 8; // sector 8: diff. strip width within same module
    } else {
	return ModuleColNum(ix)+1;
    }
}

//-----------------------------------------------------------------------------
void AliMUONTriggerSegmentation::
IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& x3, Float_t& x4) 
{
// need to return (only) x4 = dist. betwwen the hit and the closest border of
// the current strip

    Int_t ix,iy;
    Float_t xstrip,ystrip;
    GetPadI(fXhit,fYhit,ix,iy);
    GetPadC(ix,iy,xstrip,ystrip);
    x1= (fBending) ? fYhit : fXhit;  // hit y (bending) / x (!bending) position
    x2= (fBending) ? ystrip : xstrip; // y or x coord. of the main strip
    x3= (fBending) ? fY : fX;          // current strip real y or x coord.
    Int_t modNum = ModuleColNum(fIx);

    // find the position of the 2 borders of the current strip
    Float_t min = 0.;
    Float_t max = 0.;    
    if (fBending) {
	min = x3 - fStripYsize[modNum]/2.;
	max = x3 + fStripYsize[modNum]/2.;	
    } else {
	if (modNum==6 && fIy>7) { // equivalent to fSector == 8
 	    min = x3 - fStripXsize[modNum]/4.;
	    max = x3 + fStripXsize[modNum]/4.;	
	} else 
	    min = x3 - fStripXsize[modNum]/2.;
	    max = x3 + fStripXsize[modNum]/2.;		
    }    
    // dist. between the hit and the closest border of the current strip
    x4 = (TMath::Abs(max-x1) > TMath::Abs(min-x1)) ? 
	TMath::Abs(min-x1):TMath::Abs(max-x1);
//    printf("fBending x1 x3 min max x4 %i %f %f %f %f %f\n",fBending,x1,x3,min,max,x4);
}


//-----------------------------------------------------------------------------
void AliMUONTriggerSegmentation::
Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10]) 
{
//-----------------BENDING-----------------------------------------
// Returns list of 10 next neighbours for given X strip (ix, iy)  
// neighbour number 4 in the list -                     
// neighbour number 3 in the list  |                    
// neighbour number 2 in the list  |_ Upper part             
// neighbour number 1 in the list  |            
// neighbour number 0 in the list -           
//      X strip (ix, iy) 
// neighbour number 5 in the list -       
// neighbour number 6 in the list  | _ Lower part
// neighbour number 7 in the list  |
// neighbour number 8 in the list  | 
// neighbour number 9 in the list -

//-----------------NON-BENDING-------------------------------------
// Returns list of 10 next neighbours for given Y strip (ix, iy)  
// neighbour number 9 8 7 6 5 (Y strip (ix, iy)) 0 1 2 3 4 in the list
//                  \_______/                    \_______/
//                    left                         right

    Int_t absiX = TMath::Abs(iX); 
    Int_t modNum = ModuleColNum(absiX); // from 0 to 6
    Int_t nStrip = fNstrip[modNum];    
    
    if (fBending) {
	Int_t iCandidateUp, iCandidateDo;
	Int_t j;
	
	*Nlist = 10;
	for (Int_t i=0; i<10; i++) Xlist[i]=Ylist[i]=0;
	
	if (iY < nStrip) {	    
	    for (Int_t i=0; i<5; i++) {
		j = i + 5;
		iCandidateUp = iY + (i + 1);
		iCandidateDo = iY - (i + 1);
		if (iCandidateUp < nStrip) { 
		    Xlist[i] = iX;
		    Ylist[i] = iCandidateUp;  
		}
		if (iCandidateDo >= 0) { 
		    Xlist[j] = iX;
		    Ylist[j] = iCandidateDo;  
		}
	    }	    
	} // iY < nStrip	

    } else { // non-bending
	 
      Int_t iCandidateLeft, iCandidateRight;
      Int_t iNewCandidateRight=0; 
      Int_t iNewCandidateLeft=0;
// first strip number on the right of the left module  
      if ( modNum!=0 && absiX!=52 ) 
	  iNewCandidateLeft = fNstrip[modNum-1]-1;
      Int_t j;
      
      *Nlist = 10;
      for (Int_t i=0; i<10; i++) Xlist[i]=Ylist[i]=0;
      
      if (iY < nStrip) {
	  
	  for (Int_t i=0; i<5; i++) {
	      j = i + 5;
	      iCandidateRight = iY + (i + 1);
	      iCandidateLeft  = iY - (i + 1);
	      if (iCandidateRight < nStrip) { // strip in same module  
		  Xlist[i] = absiX;
		  Ylist[i] = iCandidateRight;  
	      } else if (modNum!=6) {   // need to scan the module on the right
		  Xlist[i] = absiX+1;
		  Ylist[i] = iNewCandidateRight;  
		  iNewCandidateRight++;
	      }
	      
	      if (iCandidateLeft >=0 ) { // strip in same module
		  Xlist[j] = absiX;
		  Ylist[j] = iCandidateLeft;  
	      } else if ( iNewCandidateLeft !=0) {
		  Xlist[j] = absiX-1;
		  Ylist[j] = iNewCandidateLeft;  
		  iNewCandidateLeft--;
	      }
	  }
	  
	  if (iX<0) {                                  // left side of chamber 
	      for (Int_t i=0; i<10; i++) { 
		  if (Xlist[i]!=0) Xlist[i]=-Xlist[i]; 
	      }
	  }
	  
      } // iY < nStrip
    } // non-bending

//    for (Int_t i=0; i<10; i++) {
//	printf("AliMUONTriggerSegmentation LOC fBending i ix iy = %i %i %i %i \n",fBending,i,Xlist[i],Ylist[i]);
//   }
}

//--------------------------------------------------------------------------
void AliMUONTriggerSegmentation::Init(Int_t detectionElementId,
				      Int_t nStrip[7],
				      Float_t stripYsize[7],
				      Float_t stripXsize[7],
				      Float_t offset)
{
//    printf(" fBending: %d \n",fBending);
    
    Int_t nStripMax = 0;
    if (fBending) nStripMax = nStrip[0];
    
    for (Int_t i=0; i<7; i++) {
	fNstrip[i]=nStrip[i];
	fStripYsize[i]=stripYsize[i];
	fStripXsize[i]=stripXsize[i];
	fModuleYmin[0]=0.;
    }
// take care of offset in Y in chamber 5, first module
    fModuleYmin[0] = offset;
    
    Float_t tmp = 0.;  
    Int_t npad = 0;  // number of pad in x and y
    for (Int_t iModule=0; iModule<fNsec; iModule++) { // modules	
	fModuleXmin[iModule] = tmp;      
	npad = npad + fNstrip[iModule];
	if (fBending) {
	    fModuleXmax[iModule] = 
		fModuleXmin[iModule] + fStripXsize[iModule];
	} else if (!fBending) {
	    if (iModule<6) {
		fModuleXmax[iModule] = 
		    fModuleXmin[iModule] + 
		    fStripXsize[iModule]*fNstrip[iModule];
	    } else if (iModule==6) { 
		fModuleXmax[iModule] = 
		    fModuleXmin[iModule] + 
		    (fStripXsize[iModule]*fNstrip[iModule]/2) +
		    (fStripXsize[iModule]/2.*fNstrip[iModule]/2);
	    }	  
	}
	tmp = fModuleXmax[iModule];      
	
// calculate nStripMax in x & y
	if (fBending) {
	    if (fNstrip[iModule] > nStripMax) nStripMax = fNstrip[iModule];
	} else if (!fBending) {
	    for (Int_t iStrip=0; iStrip<fNstrip[iModule]; iStrip++) nStripMax++;
	}
    } // loop on modules

// associate nStripMax
//   fNpx = (fBending) ? fNsec : nStripMax;
//   fNpy = (fBending) ? nStripMax : 1;
    fNpx = 124; // tot num of modules (like with old segmentation)
    fNpy = 64; // max number of y strips within one module

// calculate half size in x & y (to shift local coordinate ref. system)
  fRpcHalfXsize = 0;
  fRpcHalfYsize = 0;  
  if (fBending) {
      for (Int_t iModule=0; iModule<fNsec; iModule++)  
	  fRpcHalfXsize = fRpcHalfXsize + fStripXsize[iModule];      
      fRpcHalfYsize = fNstrip[1] * fStripYsize[1];
  } else if (!fBending) {
      fRpcHalfXsize = fModuleXmax[6];
      fRpcHalfYsize = fStripYsize[1];
  }
  fRpcHalfXsize = fRpcHalfXsize / 2.;
  fRpcHalfYsize = fRpcHalfYsize / 2.;  

/*
  printf(" fNpx fNpy fRpcHalfXsize fRpcHalfYsize = %i %i %f %f \n",
	 fNpx,fNpy,fRpcHalfXsize,fRpcHalfYsize);

  for (Int_t iModule=0; iModule<fNsec; iModule++) {
      printf(" iModule fModuleXmin fModuleXmax fModuleYmin fStripXsize fStripYsize %i %f %f %f %f %f\n",
	     iModule,fModuleXmin[iModule],fModuleXmax[iModule],
	     fModuleYmin[iModule],
	     fStripXsize[iModule],fStripYsize[iModule]);
	     }

  for (Int_t iModule=0; iModule<fNsec; iModule++) {
      printf(" iModule fNstrip fStripXsize fStripYsize %i %i %f %f \n",
	     iModule,fNstrip[iModule],
	     fStripXsize[iModule],fStripYsize[iModule]);
  }
*/

  fId = detectionElementId;
}
Commit	Line	Data
0a11496e	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	/* $Id$ */
	17
d173a061	18	//**********************************************************************
38aedc99	19	// Segmentation classe for trigger chambers.
d173a061	20	// In the present version the method use global strip coordinates except
d173a061	21	// HasPad. The conversion is made via GetPadLoc2Glo.
38aedc99	22	// To be improved in the future.
d173a061	23	//**********************************************************************
0a11496e	24
0a11496e	25	#include "AliMUONTriggerSegmentation.h"
	26	#include "AliLog.h"
	27
	28	//___________________________________________
	29	ClassImp(AliMUONTriggerSegmentation)
	30
a713db22	31	AliMUONTriggerSegmentation::AliMUONTriggerSegmentation()
	32	: AliMUONVGeometryDESegmentation(),
	33	fBending(0),
79b4ba23	34	fId(0),
38aedc99	35	fNsec(7),
79b4ba23	36	fNpx(999999),
79b4ba23	37	fNpy(999999),
79b4ba23	38	fXhit(0.),
	39	fYhit(0.),
	40	fIx(0),
	41	fIy(0),
	42	fX(0.),
	43	fY(0.),
79b4ba23	44	// add to St345SlatSegmentation
	45	fLineNumber(0),
	46	fRpcHalfXsize(0),
	47	fRpcHalfYsize(0)
a713db22	48	{
79b4ba23	49	// add to St345SlatSegmentation
	50	for (Int_t i=0; i<7; i++) {
	51	fNstrip[i]=0;
	52	fStripYsize[i]=0.;
	53	fStripXsize[i]=0.;
	54	fModuleXmin[i]=0.;
	55	fModuleXmax[i]=0.;
	56	fModuleYmin[i]=0.;
	57	}
a713db22	58	}
79b4ba23	59
79b4ba23	60
a713db22	61	//___________________________________________
0a11496e	62	AliMUONTriggerSegmentation::AliMUONTriggerSegmentation(Bool_t bending)
0a11496e	63	: AliMUONVGeometryDESegmentation(),
79b4ba23	64	fBending(bending),
79b4ba23	65	fId(0),
79b4ba23	66	fNpx(999999),
79b4ba23	67	fNpy(999999),
79b4ba23	68	fXhit(0.),
	69	fYhit(0.),
	70	fIx(0),
	71	fIy(0),
	72	fX(0.),
	73	fY(0.),
79b4ba23	74	// add to St345SlatSegmentation
	75	fLineNumber(0),
	76	fRpcHalfXsize(0),
	77	fRpcHalfYsize(0)
0a11496e	78	{
0a11496e	79	// Non default constructor
d173a061	80	fNsec = 7;
79b4ba23	81	// add to St345SlatSegmentation
	82	for (Int_t i=0; i<7; i++) {
	83	fNstrip[i]=0;
	84	fStripYsize[i]=0.;
	85	fStripXsize[i]=0.;
	86	fModuleXmin[i]=0.;
	87	fModuleXmax[i]=0.;
	88	fModuleYmin[i]=0.;
	89	}
0a11496e	90	}
79b4ba23	91
0a11496e	92	//----------------------------------------------------------------------
	93	AliMUONTriggerSegmentation::AliMUONTriggerSegmentation(const AliMUONTriggerSegmentation& rhs) : AliMUONVGeometryDESegmentation(rhs)
	94	{
	95	AliFatal("Not implemented.");
	96	}
	97	//----------------------------------------------------------------------
	98	AliMUONTriggerSegmentation::~AliMUONTriggerSegmentation()
	99	{
	100	// Destructor
d173a061	101	;
0a11496e	102	}
	103	//----------------------------------------------------------------------
	104	AliMUONTriggerSegmentation& AliMUONTriggerSegmentation::operator=(const AliMUONTriggerSegmentation& rhs)
	105	{
79b4ba23	106	// Protected assignement operator
0a11496e	107	if (this == &rhs) return *this;
	108	AliFatal("Not implemented.");
	109	return *this;
	110	}
79b4ba23	111	//----------------------------------------------------------------------
d173a061	112	Int_t AliMUONTriggerSegmentation::ModuleColNum(Int_t ix)
38aedc99	113	{
38aedc99	114	// returns column number (from 0 to 6) in which the (global) module
d173a061	115	// ix is sitting (could return 7 if ix=isec)
d173a061	116	return TMath::Abs(ix)-Int_t(TMath::Abs(ix)/10)*10-1;
38aedc99	117	}
38aedc99	118	//----------------------------------------------------------------------
79b4ba23	119	Bool_t AliMUONTriggerSegmentation::HasPad(Int_t ix, Int_t iy)
79b4ba23	120	{
d173a061	121	// check if steping outside the limits (iy=1,2... iy=0,1...)
38aedc99	122	Bool_t hasPad = true;
79b4ba23	123	Int_t ixGlo = 0;
38aedc99	124	Int_t iyGlo = 0;
	125	GetPadLoc2Glo(ix, iy, ixGlo, iyGlo);
	126	if (iyGlo>=fNstrip[ModuleColNum(ixGlo)]) hasPad = false;
79b4ba23	127	return hasPad;
79b4ba23	128	}
0a11496e	129	//____________________________________________________________________________
	130	Float_t AliMUONTriggerSegmentation::Dpx(Int_t isec) const
	131	{
38aedc99	132	// return x-strip width in sector isec
	133	Float_t size = (isec<8) ? fStripXsize[isec-1] : fStripXsize[isec-2]/2.;
	134	return size;
0a11496e	135	}
	136	//____________________________________________________________________________
	137	Float_t AliMUONTriggerSegmentation::Dpy(Int_t isec) const
	138	{
38aedc99	139	// return y-strip width in sector isec
	140	Float_t size = (isec<8) ? fStripYsize[isec-1] : fStripYsize[isec-2];
	141	return size;
0a11496e	142	}
	143	//----------------------------------------------------------------------------
	144	void AliMUONTriggerSegmentation::GetPadLoc2Glo(Int_t ixLoc, Int_t iyLoc,
	145	Int_t &ixGlo, Int_t &iyGlo)
	146	{
79b4ba23	147	// converts ixLoc & iyLoc into ixGlo & iyGLo (module,strip number)
38aedc99	148	ixGlo = 0; // see AliMUONTriggerConstants::fgkModuleI
38aedc99	149	iyGlo = 0; // from 0 to (fNtrip-1) in module
0a11496e	150	if (fBending) {
38aedc99	151	ixGlo = 10*fLineNumber + ixLoc;
0a11496e	152	iyGlo = iyLoc - 1;
	153	} else if (!fBending) {
	154	Int_t iCountStrip = 0;
38aedc99	155	for (Int_t iModule=0; iModule<fNsec; iModule++) {
0a11496e	156	for (Int_t iStrip=0; iStrip<fNstrip[iModule]; iStrip++) {
0a11496e	157	if ((ixLoc-1)==iCountStrip) {
38aedc99	158	ixGlo = 10*fLineNumber + iModule + 1;
0a11496e	159	iyGlo = iStrip;
	160	}
	161	iCountStrip++;
	162	}
	163	}
	164	}
d173a061	165	// printf(" in GetPadLoc2Glo fbending ixLoc iyLoc ixGlo iyGlo %i %i %i %i \n",fBending,ixLoc,iyLoc,ixGlo,iyGlo);
0a11496e	166	}
d173a061	167
	168	//----------------------------------------------------------------------------
	169	void AliMUONTriggerSegmentation::GetPadGlo2Loc(Int_t ixGlo, Int_t iyGlo,
	170	Int_t &ixLoc, Int_t &iyLoc)
	171	{
	172	// converts ixGlo & iyGlo into ixLoc & iyLoc
	173	ixLoc = 0;
	174	iyLoc = 0;
	175	if (fBending) {
	176	ixLoc = ModuleColNum(ixGlo) + 1;
	177	iyLoc = iyGlo + 1;
	178	} else if (!fBending) {
	179	Int_t iCountStrip = 1;
	180	for (Int_t iModule=0; iModule<fNsec; iModule++) {
	181	for (Int_t iStrip=0; iStrip<fNstrip[iModule]; iStrip++) {
	182	if ((iModule==ModuleColNum(ixGlo))&&(iStrip==iyGlo)) {
	183	ixLoc = 1;
	184	iyLoc = iCountStrip;
	185	}
	186	iCountStrip++;
	187	}
	188	}
	189	}
	190	// printf(" in GetPadGlo2Loc fBending ixGlo iyGlo ixLoc iyLoc %i %i %i %i %i \n",fBending,ixGlo,iyGlo,ixLoc,iyLoc);
	191	}
	192
0a11496e	193	//----------------------------------------------------------------------------
	194	void AliMUONTriggerSegmentation::GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y)
	195	{
d173a061	196	// Returns local real coordinates (x,y) for local pad coordinates (ix,iy)
d173a061	197
0a11496e	198	x = 0.;
0a11496e	199	y = 0.;
d173a061	200	Int_t iModule = ModuleColNum(ix); // find column number (0-6)
0a11496e	201	if (fBending) {
0a11496e	202	if (iModule==0) {
38aedc99	203	x = fStripXsize[iModule]/ 2.;
0a11496e	204	} else {
38aedc99	205	x = fModuleXmax[iModule-1] + fStripXsize[iModule]/2.;
38aedc99	206	}
79b4ba23	207	y = fModuleYmin[iModule] +
d173a061	208	iy*fStripYsize[iModule] + fStripYsize[iModule]/2.;
0a11496e	209	} else if (!fBending) {
d173a061	210	if (ModuleColNum(ix)==6 && iy>7) {
38aedc99	211	x = fModuleXmin[iModule] + 8*fStripXsize[iModule] +
d173a061	212	(iy-8)*fStripXsize[iModule]/2. + fStripXsize[iModule]/4.;
79b4ba23	213	} else {
79b4ba23	214	x = fModuleXmin[iModule] +
d173a061	215	iy*fStripXsize[iModule] + fStripXsize[iModule]/2.;
79b4ba23	216	}
38aedc99	217	y = fModuleYmin[iModule] + fStripYsize[iModule] / 2.;
0a11496e	218	}
	219	x = x - fRpcHalfXsize;
	220	y = y - fRpcHalfYsize;
	221
d173a061	222	// printf(" in GetPadC fBending ix iy x y %i %i %i %f %f \n",fBending,ix,iy,x,y);
0a11496e	223	}
	224
	225	//_____________________________________________________________________________
	226	void AliMUONTriggerSegmentation::GetPadI(Float_t x, Float_t y, Int_t &ix, Int_t &iy)
	227	{
d173a061	228	// Returns global pad coordinates (ix,iy) for local real coordinates (x,y)
0a11496e	229	x = x + fRpcHalfXsize;
	230	y = y + fRpcHalfYsize;
	231	// find module number
	232	Int_t modNum=0;
38aedc99	233	for (Int_t iModule=0; iModule<fNsec; iModule++) { // modules
0a11496e	234	if ( x > fModuleXmin[iModule] && x < fModuleXmax[iModule] ) {
8ceced0c	235	ix = 10*fLineNumber + iModule + 1;
0a11496e	236	modNum = iModule;
	237	}
	238	}
	239
	240	// find strip number
	241	Float_t yMin = 0.;
	242	Float_t yMax = fModuleYmin[modNum];
	243	Float_t xMin = 0.;
	244	Float_t xMax = fModuleXmin[modNum];
	245	if (ix!=0) {
	246	for (Int_t iStrip=0; iStrip<fNstrip[modNum]; iStrip++) {
	247	if (fBending) {
	248	yMin = yMax;
	249	yMax = yMin + fStripYsize[modNum];
	250	if (y > yMin && y < yMax) iy = iStrip;
38aedc99	251	} else if (!fBending) {
0a11496e	252	xMin = xMax;
7743b3a9	253	if (modNum==6 && iStrip>7) {
	254	xMax = xMin + fStripXsize[modNum]/2.;
	255	} else {
	256	xMax = xMin + fStripXsize[modNum];
	257	}
0a11496e	258	if (x > xMin && x < xMax) iy = iStrip;
7743b3a9	259	} //
0a11496e	260	} // loop on strips
0a11496e	261	} // if ix!=0
d173a061	262	// printf("in GetPadI fBending x y ix iy %i %f %f %i %i \n",fBending,x,y,ix,iy);
0a11496e	263	}
	264	//-------------------------------------------------------------------------
	265	void AliMUONTriggerSegmentation::GetPadI(Float_t x, Float_t y , Float_t /z/, Int_t &ix, Int_t &iy)
	266	{
	267	GetPadI(x, y, ix, iy);
	268	}
d173a061	269
0a11496e	270	//-------------------------------------------------------------------------
	271	void AliMUONTriggerSegmentation::SetLineNumber(Int_t iLineNumber){
	272	fLineNumber = iLineNumber;
	273	}
	274	//-------------------------------------------------------------------------
0a11496e	275	void AliMUONTriggerSegmentation::SetPad(Int_t ix, Int_t iy)
0a11496e	276	{
0a11496e	277	// Sets virtual pad coordinates, needed for evaluating pad response
	278	// outside the tracking program
	279	GetPadC(ix,iy,fX,fY);
d173a061	280	fIx = ix; // used in IntegrationLimits
d173a061	281	fIy = iy;
0a11496e	282	fSector=Sector(ix,iy);
	283	}
	284	//---------------------------------------------------------------------------
	285	void AliMUONTriggerSegmentation::SetHit(Float_t x, Float_t y)
	286	{
	287	// Set current hit
0a11496e	288	fXhit = x;
0a11496e	289	fYhit = y;
0a11496e	290	}
	291	//----------------------------------------------------------------------------
	292	void AliMUONTriggerSegmentation::SetHit(Float_t xhit, Float_t yhit, Float_t /zhit/)
	293	{
	294	SetHit(xhit, yhit);
	295	}
	296
	297	//--------------------------------------------------------------------------
79b4ba23	298	Int_t AliMUONTriggerSegmentation::Sector(Int_t ix, Int_t iy)
0a11496e	299	{
38aedc99	300	// determine segmentation zone from pad coordinates (from 1 to 8)
d173a061	301	if (!fBending && ModuleColNum(ix)==6 && iy>7) {
38aedc99	302	return 8; // sector 8: diff. strip width within same module
79b4ba23	303	} else {
d173a061	304	return ModuleColNum(ix)+1;
38aedc99	305	}
0a11496e	306	}
79b4ba23	307
0a11496e	308	//-----------------------------------------------------------------------------
0a11496e	309	void AliMUONTriggerSegmentation::
d173a061	310	IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& x3, Float_t& x4)
0a11496e	311	{
38aedc99	312	// need to return (only) x4 = dist. betwwen the hit and the closest border of
38aedc99	313	// the current strip
d173a061	314
38aedc99	315	Int_t ix,iy;
38aedc99	316	Float_t xstrip,ystrip;
d173a061	317	GetPadI(fXhit,fYhit,ix,iy);
	318	GetPadC(ix,iy,xstrip,ystrip);
	319	x1= (fBending) ? fYhit : fXhit; // hit y (bending) / x (!bending) position
	320	x2= (fBending) ? ystrip : xstrip; // y or x coord. of the main strip
	321	x3= (fBending) ? fY : fX; // current strip real y or x coord.
	322	Int_t modNum = ModuleColNum(fIx);
38aedc99	323
d173a061	324	// find the position of the 2 borders of the current strip
	325	Float_t min = 0.;
	326	Float_t max = 0.;
	327	if (fBending) {
	328	min = x3 - fStripYsize[modNum]/2.;
	329	max = x3 + fStripYsize[modNum]/2.;
	330	} else {
	331	if (modNum==6 && fIy>7) { // equivalent to fSector == 8
	332	min = x3 - fStripXsize[modNum]/4.;
	333	max = x3 + fStripXsize[modNum]/4.;
	334	} else
	335	min = x3 - fStripXsize[modNum]/2.;
	336	max = x3 + fStripXsize[modNum]/2.;
	337	}
38aedc99	338	// dist. between the hit and the closest border of the current strip
d173a061	339	x4 = (TMath::Abs(max-x1) > TMath::Abs(min-x1)) ?
	340	TMath::Abs(min-x1):TMath::Abs(max-x1);
	341	// printf("fBending x1 x3 min max x4 %i %f %f %f %f %f\n",fBending,x1,x3,min,max,x4);
0a11496e	342	}
38aedc99	343
38aedc99	344
0a11496e	345	//-----------------------------------------------------------------------------
	346	void AliMUONTriggerSegmentation::
	347	Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10])
	348	{
d173a061	349	//-----------------BENDING-----------------------------------------
	350	// Returns list of 10 next neighbours for given X strip (ix, iy)
	351	// neighbour number 4 in the list -
	352	// neighbour number 3 in the list \|
	353	// neighbour number 2 in the list \|_ Upper part
	354	// neighbour number 1 in the list \|
	355	// neighbour number 0 in the list -
	356	// X strip (ix, iy)
	357	// neighbour number 5 in the list -
	358	// neighbour number 6 in the list \| _ Lower part
	359	// neighbour number 7 in the list \|
	360	// neighbour number 8 in the list \|
	361	// neighbour number 9 in the list -
	362
	363	//-----------------NON-BENDING-------------------------------------
	364	// Returns list of 10 next neighbours for given Y strip (ix, iy)
	365	// neighbour number 9 8 7 6 5 (Y strip (ix, iy)) 0 1 2 3 4 in the list
	366	// \_______/ \_______/
	367	// left right
	368
	369	Int_t absiX = TMath::Abs(iX);
	370	Int_t modNum = ModuleColNum(absiX); // from 0 to 6
	371	Int_t nStrip = fNstrip[modNum];
	372
	373	if (fBending) {
	374	Int_t iCandidateUp, iCandidateDo;
	375	Int_t j;
	376
	377	*Nlist = 10;
	378	for (Int_t i=0; i<10; i++) Xlist[i]=Ylist[i]=0;
	379
	380	if (iY < nStrip) {
	381	for (Int_t i=0; i<5; i++) {
	382	j = i + 5;
	383	iCandidateUp = iY + (i + 1);
	384	iCandidateDo = iY - (i + 1);
	385	if (iCandidateUp < nStrip) {
	386	Xlist[i] = iX;
	387	Ylist[i] = iCandidateUp;
	388	}
	389	if (iCandidateDo >= 0) {
	390	Xlist[j] = iX;
	391	Ylist[j] = iCandidateDo;
	392	}
	393	}
	394	} // iY < nStrip
	395
	396	} else { // non-bending
	397
	398	Int_t iCandidateLeft, iCandidateRight;
	399	Int_t iNewCandidateRight=0;
	400	Int_t iNewCandidateLeft=0;
	401	// first strip number on the right of the left module
	402	if ( modNum!=0 && absiX!=52 )
	403	iNewCandidateLeft = fNstrip[modNum-1]-1;
	404	Int_t j;
	405
	406	*Nlist = 10;
	407	for (Int_t i=0; i<10; i++) Xlist[i]=Ylist[i]=0;
	408
	409	if (iY < nStrip) {
	410
	411	for (Int_t i=0; i<5; i++) {
	412	j = i + 5;
413	iCandidateRight = iY + (i + 1);
414	iCandidateLeft = iY - (i + 1);
415	if (iCandidateRight < nStrip) { // strip in same module
416	Xlist[i] = absiX;
417	Ylist[i] = iCandidateRight;
418	} else if (modNum!=6) { // need to scan the module on the right
419	Xlist[i] = absiX+1;
420	Ylist[i] = iNewCandidateRight;
421	iNewCandidateRight++;
422	}
423
424	if (iCandidateLeft >=0 ) { // strip in same module
425	Xlist[j] = absiX;
426	Ylist[j] = iCandidateLeft;
427	} else if ( iNewCandidateLeft !=0) {
428	Xlist[j] = absiX-1;
429	Ylist[j] = iNewCandidateLeft;
430	iNewCandidateLeft--;
431	}
432	}
433
434	if (iX<0) { // left side of chamber
435	for (Int_t i=0; i<10; i++) {
436	if (Xlist[i]!=0) Xlist[i]=-Xlist[i];
437	}
438	}
439
440	} // iY < nStrip
441	} // non-bending
442
443	// for (Int_t i=0; i<10; i++) {
444	// printf("AliMUONTriggerSegmentation LOC fBending i ix iy = %i %i %i %i \n",fBending,i,Xlist[i],Ylist[i]);
445	// }
0a11496e	446	}
	447
	448	//--------------------------------------------------------------------------
	449	void AliMUONTriggerSegmentation::Init(Int_t detectionElementId,
0a11496e	450	Int_t nStrip[7],
	451	Float_t stripYsize[7],
	452	Float_t stripXsize[7],
	453	Float_t offset)
	454	{
79b4ba23	455	// printf(" fBending: %d \n",fBending);
	456
	457	Int_t nStripMax = 0;
	458	if (fBending) nStripMax = nStrip[0];
	459
	460	for (Int_t i=0; i<7; i++) {
	461	fNstrip[i]=nStrip[i];
	462	fStripYsize[i]=stripYsize[i];
	463	fStripXsize[i]=stripXsize[i];
	464	fModuleYmin[0]=0.;
	465	}
0a11496e	466	// take care of offset in Y in chamber 5, first module
79b4ba23	467	fModuleYmin[0] = offset;
	468
	469	Float_t tmp = 0.;
	470	Int_t npad = 0; // number of pad in x and y
38aedc99	471	for (Int_t iModule=0; iModule<fNsec; iModule++) { // modules
79b4ba23	472	fModuleXmin[iModule] = tmp;
	473	npad = npad + fNstrip[iModule];
	474	if (fBending) {
	475	fModuleXmax[iModule] =
	476	fModuleXmin[iModule] + fStripXsize[iModule];
	477	} else if (!fBending) {
	478	if (iModule<6) {
	479	fModuleXmax[iModule] =
38aedc99	480	fModuleXmin[iModule] +
38aedc99	481	fStripXsize[iModule]*fNstrip[iModule];
79b4ba23	482	} else if (iModule==6) {
	483	fModuleXmax[iModule] =
	484	fModuleXmin[iModule] +
	485	(fStripXsize[iModule]*fNstrip[iModule]/2) +
	486	(fStripXsize[iModule]/2.*fNstrip[iModule]/2);
	487	}
	488	}
	489	tmp = fModuleXmax[iModule];
	490
	491	// calculate nStripMax in x & y
	492	if (fBending) {
	493	if (fNstrip[iModule] > nStripMax) nStripMax = fNstrip[iModule];
	494	} else if (!fBending) {
	495	for (Int_t iStrip=0; iStrip<fNstrip[iModule]; iStrip++) nStripMax++;
	496	}
	497	} // loop on modules
0a11496e	498
0a11496e	499	// associate nStripMax
7743b3a9	500	// fNpx = (fBending) ? fNsec : nStripMax;
7743b3a9	501	// fNpy = (fBending) ? nStripMax : 1;
8ceced0c	502	fNpx = 124; // tot num of modules (like with old segmentation)
	503	fNpy = 64; // max number of y strips within one module
	504
38aedc99	505	// calculate half size in x & y (to shift local coordinate ref. system)
0a11496e	506	fRpcHalfXsize = 0;
	507	fRpcHalfYsize = 0;
	508	if (fBending) {
38aedc99	509	for (Int_t iModule=0; iModule<fNsec; iModule++)
0a11496e	510	fRpcHalfXsize = fRpcHalfXsize + fStripXsize[iModule];
	511	fRpcHalfYsize = fNstrip[1] * fStripYsize[1];
	512	} else if (!fBending) {
	513	fRpcHalfXsize = fModuleXmax[6];
	514	fRpcHalfYsize = fStripYsize[1];
	515	}
	516	fRpcHalfXsize = fRpcHalfXsize / 2.;
	517	fRpcHalfYsize = fRpcHalfYsize / 2.;
	518
	519	/*
	520	printf(" fNpx fNpy fRpcHalfXsize fRpcHalfYsize = %i %i %f %f \n",
	521	fNpx,fNpy,fRpcHalfXsize,fRpcHalfYsize);
	522
38aedc99	523	for (Int_t iModule=0; iModule<fNsec; iModule++) {
79b4ba23	524	printf(" iModule fModuleXmin fModuleXmax fModuleYmin fStripXsize fStripYsize %i %f %f %f %f %f\n",
0a11496e	525	iModule,fModuleXmin[iModule],fModuleXmax[iModule],
79b4ba23	526	fModuleYmin[iModule],
0a11496e	527	fStripXsize[iModule],fStripYsize[iModule]);
0a11496e	528	}
79b4ba23	529
38aedc99	530	for (Int_t iModule=0; iModule<fNsec; iModule++) {
79b4ba23	531	printf(" iModule fNstrip fStripXsize fStripYsize %i %i %f %f \n",
	532	iModule,fNstrip[iModule],
	533	fStripXsize[iModule],fStripYsize[iModule]);
	534	}
	535	*/
	536
0a11496e	537	fId = detectionElementId;
	538	}
	539
	540
	541
	542
	543
	544
	545