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

/* $Id$ */

#include "AliMUONSegmentationTriggerY.h"
#include "AliMUONTriggerConstants.h"
#include "TMath.h"
#include "TRandom.h"
#include "TArc.h"
#include "AliMUONChamber.h"
#include "AliMUON.h"
#include "AliRun.h"
#include <Riostream.h> 
ClassImp(AliMUONSegmentationTriggerY)

//------------------------------------------------------------------
void AliMUONSegmentationTriggerY::Init(Int_t chamber)
{
// intialize Y segmentation 
  AliMUON *pMUON  = (AliMUON *) gAlice->GetModule("MUON");
  if(pMUON->GetDebug()>1) printf("%s: Initialize Trigger Chamber Geometry Y\n",ClassName());
  AliMUONSegmentationTrigger::Init(chamber);
    
// calculate x & y position of Y strips
  Int_t nModule=AliMUONTriggerConstants::Nmodule();  
  for (Int_t imodule=0; imodule<nModule; imodule++) {    
    Float_t width=StripSizeY(AliMUONTriggerConstants::ModuleId(imodule));
    Int_t nStrip=AliMUONTriggerConstants::NstripY(imodule);    
    for (Int_t istrip=0; istrip<nStrip; istrip++){
      if (imodule<63) {
	fXofysmin[imodule][istrip]=
	    (AliMUONTriggerConstants::XcMin(imodule)+width*(istrip))*fZscale;
	fXofysmax[imodule][istrip]=
	    (AliMUONTriggerConstants::XcMin(imodule)+width*(istrip+1))*fZscale;
      } else {	
	fXofysmin[imodule][istrip]=-1.*fXofysmax[imodule-63][istrip];
	fXofysmax[imodule][istrip]=-1.*fXofysmin[imodule-63][istrip];
      }      
      fYofysmin[imodule][istrip] = fYcmin[imodule]*fZscale;
      fYofysmax[imodule][istrip] = fYcmax[imodule]*fZscale;
    }
  }

}

//------------------------------------------------------------------
void AliMUONSegmentationTriggerY::GetPadI(Float_t x,Float_t y,Int_t &ix,Int_t &iy) 
{
//  Returns pad coordinates (ix,iy) for given real coordinates (x,y)
//  x,y = real coordinates; ix = module number , iy = strip number

  ix = 0;    
  iy = 0;
  Int_t nModule=AliMUONTriggerConstants::Nmodule();
  for (Int_t imodule=0; imodule<nModule; imodule++) {
      Int_t nStrip=AliMUONTriggerConstants::NstripY(imodule);      
    for (Int_t istrip=0; istrip<nStrip; istrip++){
      if (x>fXofysmin[imodule][istrip]&&x<fXofysmax[imodule][istrip]&&
	  y>fYofysmin[imodule][istrip]&&y<fYofysmax[imodule][istrip]){
	ix = AliMUONTriggerConstants::ModuleId(imodule);
	iy = istrip;
      }
    }
  }
}

//------------------------------------------------------------------
void AliMUONSegmentationTriggerY::GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y)
{
//  Returns real coordinates (x,y) for given pad coordinates (ix,iy)
//  ix = module number , iy = strip number;  x,y = center of strip
  x = 0.;    
  y = 0.;
  Int_t nModule=AliMUONTriggerConstants::Nmodule();
  for (Int_t imodule=0; imodule<nModule; imodule++) {
    if (AliMUONTriggerConstants::ModuleId(imodule)==ix){
      x=fXofysmin[imodule][iy]+(fXofysmax[imodule][iy]-fXofysmin[imodule][iy])/2.;
      y=fYofysmin[imodule][iy]+(fYofysmax[imodule][iy]-fYofysmin[imodule][iy])/2.;
    }
  }
}

//------------------------------------------------------------------
void AliMUONSegmentationTriggerY::SetPadSize(Float_t p1, Float_t p2)
{
//  Sets the padsize 
//  
  fDpx=p1;
  fDpy=p2;
}

//------------------------------------------------------------------
void AliMUONSegmentationTriggerY::
Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10]){
// 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  
// Note : should not be used to return a list of neighbours larger than 16 !

  Int_t absiX = TMath::Abs(iX); 
  Int_t numModule = ModuleNumber(absiX);   // module number Id.
  Int_t nStrip = AliMUONTriggerConstants::NstripY(numModule); //numb of strips
  Int_t iCandidateLeft, iCandidateRight;
  Int_t iNewCandidateRight=0; 
  Int_t iNewCandidateLeft=0;
// first strip number on the right of the left module  
  if ( (absiX-(Int_t(absiX/10))*10)!=1 && absiX!=52 ) 
    iNewCandidateLeft = 
      AliMUONTriggerConstants::NstripY(ModuleNumber(absiX-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 ((absiX+1)%10!=8) {   // 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    
}

//------------------------------------------------------------------   
void AliMUONSegmentationTriggerY::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);
  GetPadI(fX,fY,fIx,fIy);
  fSector=Sector(ix,iy);    
}

//------------------------------------------------------------------   
Int_t AliMUONSegmentationTriggerY::ISector() 
{ return fSector;}

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

Int_t AliMUONSegmentationTriggerY::Ix()
{ return fIx;}

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

Int_t AliMUONSegmentationTriggerY::Iy()
{ return fIy;}

//------------------------------------------------------------------
Float_t AliMUONSegmentationTriggerY::Dpx(Int_t isec) const
{ 
// returns x size of y strips for sector isec
  if (isec==1) {
    return 2.125*fZscale;
  } else if (isec==2) {
    return 2.125*fZscale;
  } else if (isec==3) {
    return 2.125*fZscale;
  } else if (isec==4) {
    return 4.25*fZscale;
  } else {
    return 0.;	
  }       
}

//------------------------------------------------------------------
Float_t AliMUONSegmentationTriggerY::Dpy(Int_t isec) const
{ 
// returns y size of y strips for sector isec
  if (isec==1) {
    return 68.0*fZscale;
  } else if (isec==2) {
    return 51.0*fZscale;
  } else if (isec==3) {
    return 68.0*fZscale;
  } else if (isec==4) {
    return 68.0*fZscale;
  } else if (isec==5) {
    return 68.0*fZscale;
  } else {
    return 0.;
  }
}
//------------------------------------------------------------------   
void AliMUONSegmentationTriggerY::GetPadI(Float_t x, Float_t y, Float_t /*z*/, Int_t &ix, Int_t &iy) 
{
  GetPadI(x, y, ix, iy);
}

//------------------------------------------------------------------   
void AliMUONSegmentationTriggerY::SetHit(Float_t xhit, Float_t yhit)
{ 
// set hits during diintegration
  AliMUONSegmentationTrigger::SetHit(xhit,yhit);
}
//------------------------------------------------------------------   
void AliMUONSegmentationTriggerY::SetHit(Float_t xhit, Float_t yhit, Float_t /*zhit*/)
{
  SetHit(xhit, yhit);
}
//------------------------------------------------------------------   
Int_t AliMUONSegmentationTriggerY::Sector(Int_t ix, Int_t /*iy*/)
{
// Returns sector number for given module
// 
  Int_t absix=TMath::Abs(ix);
  Int_t iwidth=Int_t(StripSizeY(absix));

  if (absix==52) {
    return 1;
  } else if (absix==41||absix==61) {
    return 2;
  } else if (iwidth==2) {
    return 3;
  } else if (iwidth==4) {
    return 4;
  } else {
    return 0;
  }
}

//------------------------------------------------------------------   
void AliMUONSegmentationTriggerY::
IntegrationLimits(Float_t& x1, Float_t& x2, Float_t& x3, Float_t& x4) 
{ 
// returns quantities needed to evaluate neighbour strip response
  Int_t ix,iy;
  Float_t xstrip,ystrip;
  GetPadI(fXhit,fYhit,ix,iy);  
  GetPadC(ix,iy,xstrip,ystrip);  
  x1=fXhit;        // hit x position
  x2=xstrip;       // x coordinate of the main strip
  x3=fX;           // current strip real x coordinate  
  //  width=StripSizeY(ix);   // width of the main strip 

  // find the position of the 2 borders of the current strip
  Float_t xmin = fXofysmin[ModuleNumber(fIx)][fIy];
  Float_t xmax = fXofysmax[ModuleNumber(fIx)][fIy];

  // dist. between the hit and the closest border of the current strip
  x4 = (TMath::Abs(xmax-x1) > TMath::Abs(xmin-x1)) ? 
    TMath::Abs(xmin-x1):TMath::Abs(xmax-x1);    

}
Commit	Line	Data
a9e2aefa	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	/* $Id$ */
a9e2aefa	17
a9e2aefa	18	#include "AliMUONSegmentationTriggerY.h"
3f2cdba8	19	#include "AliMUONTriggerConstants.h"
a9e2aefa	20	#include "TMath.h"
	21	#include "TRandom.h"
	22	#include "TArc.h"
	23	#include "AliMUONChamber.h"
9e1a0ddb	24	#include "AliMUON.h"
9e1a0ddb	25	#include "AliRun.h"
70479d0e	26	#include <Riostream.h>
a9e2aefa	27	ClassImp(AliMUONSegmentationTriggerY)
a9e2aefa	28
3f2cdba8	29	//------------------------------------------------------------------
d81db581	30	void AliMUONSegmentationTriggerY::Init(Int_t chamber)
a9e2aefa	31	{
3f2cdba8	32	// intialize Y segmentation
9e1a0ddb	33	AliMUON pMUON = (AliMUON ) gAlice->GetModule("MUON");
ef077202	34	if(pMUON->GetDebug()>1) printf("%s: Initialize Trigger Chamber Geometry Y\n",ClassName());
d81db581	35	AliMUONSegmentationTrigger::Init(chamber);
a9e2aefa	36
a9e2aefa	37	// calculate x & y position of Y strips
3f2cdba8	38	Int_t nModule=AliMUONTriggerConstants::Nmodule();
	39	for (Int_t imodule=0; imodule<nModule; imodule++) {
	40	Float_t width=StripSizeY(AliMUONTriggerConstants::ModuleId(imodule));
	41	Int_t nStrip=AliMUONTriggerConstants::NstripY(imodule);
	42	for (Int_t istrip=0; istrip<nStrip; istrip++){
a9e2aefa	43	if (imodule<63) {
3f2cdba8	44	fXofysmin[imodule][istrip]=
	45	(AliMUONTriggerConstants::XcMin(imodule)+width(istrip))fZscale;
	46	fXofysmax[imodule][istrip]=
	47	(AliMUONTriggerConstants::XcMin(imodule)+width(istrip+1))fZscale;
a9e2aefa	48	} else {
	49	fXofysmin[imodule][istrip]=-1.*fXofysmax[imodule-63][istrip];
	50	fXofysmax[imodule][istrip]=-1.*fXofysmin[imodule-63][istrip];
	51	}
3f2cdba8	52	fYofysmin[imodule][istrip] = fYcmin[imodule]*fZscale;
3f2cdba8	53	fYofysmax[imodule][istrip] = fYcmax[imodule]*fZscale;
a9e2aefa	54	}
	55	}
	56
	57	}
	58
	59	//------------------------------------------------------------------
c3eff6ad	60	void AliMUONSegmentationTriggerY::GetPadI(Float_t x,Float_t y,Int_t &ix,Int_t &iy)
c3eff6ad	61	{
a9e2aefa	62	// Returns pad coordinates (ix,iy) for given real coordinates (x,y)
	63	// x,y = real coordinates; ix = module number , iy = strip number
	64
	65	ix = 0;
	66	iy = 0;
3f2cdba8	67	Int_t nModule=AliMUONTriggerConstants::Nmodule();
	68	for (Int_t imodule=0; imodule<nModule; imodule++) {
	69	Int_t nStrip=AliMUONTriggerConstants::NstripY(imodule);
	70	for (Int_t istrip=0; istrip<nStrip; istrip++){
a9e2aefa	71	if (x>fXofysmin[imodule][istrip]&&x<fXofysmax[imodule][istrip]&&
a9e2aefa	72	y>fYofysmin[imodule][istrip]&&y<fYofysmax[imodule][istrip]){
3f2cdba8	73	ix = AliMUONTriggerConstants::ModuleId(imodule);
a9e2aefa	74	iy = istrip;
	75	}
	76	}
	77	}
	78	}
	79
	80	//------------------------------------------------------------------
c3eff6ad	81	void AliMUONSegmentationTriggerY::GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y)
c3eff6ad	82	{
a9e2aefa	83	// Returns real coordinates (x,y) for given pad coordinates (ix,iy)
	84	// ix = module number , iy = strip number; x,y = center of strip
	85	x = 0.;
	86	y = 0.;
3f2cdba8	87	Int_t nModule=AliMUONTriggerConstants::Nmodule();
	88	for (Int_t imodule=0; imodule<nModule; imodule++) {
	89	if (AliMUONTriggerConstants::ModuleId(imodule)==ix){
a9e2aefa	90	x=fXofysmin[imodule][iy]+(fXofysmax[imodule][iy]-fXofysmin[imodule][iy])/2.;
	91	y=fYofysmin[imodule][iy]+(fYofysmax[imodule][iy]-fYofysmin[imodule][iy])/2.;
	92	}
	93	}
	94	}
	95
	96	//------------------------------------------------------------------
	97	void AliMUONSegmentationTriggerY::SetPadSize(Float_t p1, Float_t p2)
	98	{
	99	// Sets the padsize
	100	//
	101	fDpx=p1;
	102	fDpy=p2;
	103	}
	104
	105	//------------------------------------------------------------------
	106	void AliMUONSegmentationTriggerY::
03f221a7	107	Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10]){
	108	// Returns list of 10 next neighbours for given Y strip (ix, iy)
	109	// neighbour number 9 8 7 6 5 (Y strip (ix, iy)) 0 1 2 3 4 in the list
	110	// \_______/ \_______/
	111	// left right
	112	// Note : should not be used to return a list of neighbours larger than 16 !
	113
	114	Int_t absiX = TMath::Abs(iX);
	115	Int_t numModule = ModuleNumber(absiX); // module number Id.
	116	Int_t nStrip = AliMUONTriggerConstants::NstripY(numModule); //numb of strips
	117	Int_t iCandidateLeft, iCandidateRight;
	118	Int_t iNewCandidateRight=0;
	119	Int_t iNewCandidateLeft=0;
	120	// first strip number on the right of the left module
	121	if ( (absiX-(Int_t(absiX/10))*10)!=1 && absiX!=52 )
	122	iNewCandidateLeft =
	123	AliMUONTriggerConstants::NstripY(ModuleNumber(absiX-1))-1;
	124	Int_t j;
a9e2aefa	125
03f221a7	126	*Nlist = 10;
	127	for (Int_t i=0; i<10; i++) Xlist[i]=Ylist[i]=0;
	128
	129	if (iY < nStrip) {
	130
	131	for (Int_t i=0; i<5; i++) {
	132	j = i + 5;
	133	iCandidateRight = iY + (i + 1);
	134	iCandidateLeft = iY - (i + 1);
	135	if (iCandidateRight < nStrip) { // strip in same module
	136	Xlist[i] = absiX;
	137	Ylist[i] = iCandidateRight;
	138	} else if ((absiX+1)%10!=8) { // need to scan the module on the right
	139	Xlist[i] = absiX+1;
	140	Ylist[i] = iNewCandidateRight;
	141	iNewCandidateRight++;
	142	}
	143
	144	if (iCandidateLeft >=0 ) { // strip in same module
	145	Xlist[j] = absiX;
	146	Ylist[j] = iCandidateLeft;
	147	} else if ( iNewCandidateLeft !=0) {
	148	Xlist[j] = absiX-1;
	149	Ylist[j] = iNewCandidateLeft;
	150	iNewCandidateLeft--;
	151	}
a9e2aefa	152	}
	153
	154	if (iX<0) { // left side of chamber
03f221a7	155	for (Int_t i=0; i<10; i++) {
	156	if (Xlist[i]!=0) Xlist[i]=-Xlist[i];
	157	}
a9e2aefa	158	}
03f221a7	159
03f221a7	160	} // iY < nStrip
a9e2aefa	161	}
	162
	163	//------------------------------------------------------------------
	164	void AliMUONSegmentationTriggerY::SetPad(Int_t ix, Int_t iy)
	165	{
	166	// Sets virtual pad coordinates, needed for evaluating pad response
	167	// outside the tracking program
ecfa008b	168	GetPadC(ix,iy,fX,fY);
ecfa008b	169	GetPadI(fX,fY,fIx,fIy);
a9e2aefa	170	fSector=Sector(ix,iy);
	171	}
	172
	173	//------------------------------------------------------------------
c3eff6ad	174	Int_t AliMUONSegmentationTriggerY::ISector()
a9e2aefa	175	{ return fSector;}
	176
	177	//------------------------------------------------------------------
c3eff6ad	178
a9e2aefa	179	Int_t AliMUONSegmentationTriggerY::Ix()
ecfa008b	180	{ return fIx;}
a9e2aefa	181
a9e2aefa	182	//------------------------------------------------------------------
c3eff6ad	183
a9e2aefa	184	Int_t AliMUONSegmentationTriggerY::Iy()
ecfa008b	185	{ return fIy;}
a9e2aefa	186
a9e2aefa	187	//------------------------------------------------------------------
c3eff6ad	188	Float_t AliMUONSegmentationTriggerY::Dpx(Int_t isec) const
3f2cdba8	189	{
3f2cdba8	190	// returns x size of y strips for sector isec
a9e2aefa	191	if (isec==1) {
	192	return 2.125*fZscale;
	193	} else if (isec==2) {
	194	return 2.125*fZscale;
	195	} else if (isec==3) {
	196	return 2.125*fZscale;
	197	} else if (isec==4) {
	198	return 4.25*fZscale;
	199	} else {
	200	return 0.;
	201	}
	202	}
	203
	204	//------------------------------------------------------------------
c3eff6ad	205	Float_t AliMUONSegmentationTriggerY::Dpy(Int_t isec) const
3f2cdba8	206	{
3f2cdba8	207	// returns y size of y strips for sector isec
a9e2aefa	208	if (isec==1) {
	209	return 68.0*fZscale;
	210	} else if (isec==2) {
	211	return 51.0*fZscale;
	212	} else if (isec==3) {
	213	return 68.0*fZscale;
	214	} else if (isec==4) {
	215	return 68.0*fZscale;
	216	} else if (isec==5) {
	217	return 68.0*fZscale;
	218	} else {
	219	return 0.;
	220	}
e889a146	221	}
	222	//------------------------------------------------------------------
	223	void AliMUONSegmentationTriggerY::GetPadI(Float_t x, Float_t y, Float_t /z/, Int_t &ix, Int_t &iy)
	224	{
	225	GetPadI(x, y, ix, iy);
a9e2aefa	226	}
	227
	228	//------------------------------------------------------------------
	229	void AliMUONSegmentationTriggerY::SetHit(Float_t xhit, Float_t yhit)
3f2cdba8	230	{
3f2cdba8	231	// set hits during diintegration
03f221a7	232	AliMUONSegmentationTrigger::SetHit(xhit,yhit);
3f2cdba8	233	}
a9e2aefa	234	//------------------------------------------------------------------
e889a146	235	void AliMUONSegmentationTriggerY::SetHit(Float_t xhit, Float_t yhit, Float_t /zhit/)
	236	{
	237	SetHit(xhit, yhit);
	238	}
	239	//------------------------------------------------------------------
	240	Int_t AliMUONSegmentationTriggerY::Sector(Int_t ix, Int_t /iy/)
a9e2aefa	241	{
	242	// Returns sector number for given module
	243	//
	244	Int_t absix=TMath::Abs(ix);
	245	Int_t iwidth=Int_t(StripSizeY(absix));
3f2cdba8	246
a9e2aefa	247	if (absix==52) {
	248	return 1;
	249	} else if (absix==41\|\|absix==61) {
	250	return 2;
	251	} else if (iwidth==2) {
	252	return 3;
	253	} else if (iwidth==4) {
	254	return 4;
	255	} else {
	256	return 0;
	257	}
	258	}
	259
	260	//------------------------------------------------------------------
	261	void AliMUONSegmentationTriggerY::
03f221a7	262	IntegrationLimits(Float_t& x1, Float_t& x2, Float_t& x3, Float_t& x4)
a9e2aefa	263	{
	264	// returns quantities needed to evaluate neighbour strip response
	265	Int_t ix,iy;
	266	Float_t xstrip,ystrip;
ecfa008b	267	GetPadI(fXhit,fYhit,ix,iy);
a30a000f	268	GetPadC(ix,iy,xstrip,ystrip);
ecfa008b	269	x1=fXhit; // hit x position
a9e2aefa	270	x2=xstrip; // x coordinate of the main strip
ecfa008b	271	x3=fX; // current strip real x coordinate
03f221a7	272	// width=StripSizeY(ix); // width of the main strip
	273
	274	// find the position of the 2 borders of the current strip
	275	Float_t xmin = fXofysmin[ModuleNumber(fIx)][fIy];
	276	Float_t xmax = fXofysmax[ModuleNumber(fIx)][fIy];
	277
	278	// dist. between the hit and the closest border of the current strip
	279	x4 = (TMath::Abs(xmax-x1) > TMath::Abs(xmin-x1)) ?
	280	TMath::Abs(xmin-x1):TMath::Abs(xmax-x1);
	281
a9e2aefa	282	}
	283
	284
	285
	286