[u/mrichter/AliRoot.git] / MUON / AliMUONSegmentationTrigger.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 "AliMUONSegmentationTrigger.h"
#include "AliMUONTriggerConstants.h"
#include "AliRun.h"
#include "AliMUON.h"
#include <TMath.h>
#include <TRandom.h>
#include <TArc.h>
#include "AliMUONChamber.h"
#include <Riostream.h>

ClassImp(AliMUONSegmentationTrigger)

//------------------------------------------------------------------
void AliMUONSegmentationTrigger::Init(Int_t chamber)
{
  // initialize Module geometry
  AliMUON *pMUON  = (AliMUON *) gAlice->GetModule("MUON");
  AliMUONChamber* iChamber=&(pMUON->Chamber(chamber));

  if(pMUON->GetDebug()>1) printf("%s: Initialize Trigger Chamber Module Geometry\n",ClassName());

  Float_t zPos=iChamber->Z();
  Float_t z1Pos=1603.5;
  fZscale = zPos/z1Pos;

  Float_t y1Cmin[126];
  Float_t y1Cmax[126];

  Float_t dz=7.2;
  Float_t z1PosPlus=z1Pos+dz/2.;
  Float_t z1PosMinus=z1Pos-dz/2.;

  Float_t z1pm=z1PosPlus/z1PosMinus;
  Float_t z1mp=z1PosMinus/z1PosPlus;

  if(pMUON->GetDebug()>1) printf("%s: fZscale = %f \n",ClassName(),fZscale);
  
// calculate yCmin and fYcmax 
  Int_t i;  
  for (i=62; i>=0; i--) {
    Int_t j=ModuleNumber(-AliMUONTriggerConstants::ModuleId(i));  // i == right, j == left 
    if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==5) {  // start with middle chamber
      if (AliMUONTriggerConstants::ModuleId(i)==51) {         // special case (empty module)
	fYcmin[i]=fYcmax[i]=fYcmin[j]=fYcmax[j]=0.;
      } else {
	y1Cmin[i]=y1Cmin[j]=-34;
	y1Cmax[i]=y1Cmax[j]=34;
	fYcmin[i]=fYcmin[j]=-34.;

	fYcmax[i]=fYcmax[j]=34.;
      }
    } else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==4) { // up
      if (AliMUONTriggerConstants::ModuleId(i)!=41) {       
	y1Cmin[i]=y1Cmax[i+7]*z1pm;
	y1Cmax[i]=y1Cmin[i]+68.;
	fYcmin[i]=y1Cmin[i];
	fYcmax[i]=fYcmin[i]+68.;

	y1Cmin[j]=y1Cmax[j+7]*z1mp;
	y1Cmax[j]=y1Cmin[j]+68.;
	fYcmin[j]=y1Cmin[j];
	fYcmax[j]=fYcmin[j]+68.;
      } else { 
	y1Cmin[i]=y1Cmin[ModuleNumber(42)]+17;
	y1Cmax[i]=y1Cmin[i]+51.;
	fYcmin[i]=y1Cmin[i];
	fYcmax[i]=fYcmin[i]+51.;

	y1Cmin[j]=y1Cmin[ModuleNumber(-42)]+17;
	y1Cmax[j]=y1Cmin[j]+51.;
	fYcmin[j]=y1Cmin[j];
	fYcmax[j]=fYcmin[j]+51.;
      }
    } else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==3) { 
      y1Cmin[i]=y1Cmax[i+7]*z1mp;
      y1Cmax[i]=y1Cmin[i]+68.;
      fYcmin[i]=y1Cmin[i];
      fYcmax[i]=fYcmin[i]+68.;

      y1Cmin[j]=y1Cmax[j+7]*z1pm;
      y1Cmax[j]=y1Cmin[j]+68.;
      fYcmin[j]=y1Cmin[j];
      fYcmax[j]=fYcmin[j]+68.;
    } else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==2) {
      y1Cmin[i]=y1Cmax[i+7]*z1pm;
      y1Cmax[i]=y1Cmin[i]+68.;
      fYcmin[i]=y1Cmin[i];
      fYcmax[i]=fYcmin[i]+68.;

      y1Cmin[j]=y1Cmax[j+7]*z1mp;
      y1Cmax[j]=y1Cmin[j]+68.;
      fYcmin[j]=y1Cmin[j];
      fYcmax[j]=fYcmin[j]+68.;
    } else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==1) {
      y1Cmin[i]=y1Cmax[i+7]*z1mp;
      y1Cmax[i]=y1Cmin[i]+68.;
      fYcmin[i]=y1Cmin[i];
      fYcmax[i]=fYcmin[i]+68.;

      y1Cmin[j]=y1Cmax[j+7]*z1pm;
      y1Cmax[j]=y1Cmin[j]+68.;
      fYcmin[j]=y1Cmin[j];
      fYcmax[j]=fYcmin[j]+68.;
    }
  }

  for (i=0; i<63; i++) {      // second loop (fill lower part)
    Int_t j=ModuleNumber(-AliMUONTriggerConstants::ModuleId(i));  // i == right, j == left 
    if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==6) { 
      fYcmin[i]=-fYcmax[i-14];
      fYcmax[i]=-fYcmin[i-14];
      fYcmin[j]=-fYcmax[j-14];
      fYcmax[j]=-fYcmin[j-14];
    } else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==7) { 
      fYcmin[i]=-fYcmax[i-28];
      fYcmax[i]=-fYcmin[i-28];
      fYcmin[j]=-fYcmax[j-28];
      fYcmax[j]=-fYcmin[j-28];
    } else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==8) { 
      fYcmin[i]=-fYcmax[i-42];
      fYcmax[i]=-fYcmin[i-42];
      fYcmin[j]=-fYcmax[j-42];
      fYcmax[j]=-fYcmin[j-42];
    } else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==9) { 
      fYcmin[i]=-fYcmax[i-56];
      fYcmax[i]=-fYcmin[i-56];
      fYcmin[j]=-fYcmax[j-56];
      fYcmax[j]=-fYcmin[j-56];
    } 
  }

  fNpx=124;
  fNpy=64;  

// Set parent chamber number
  fChamber=&(pMUON->Chamber(chamber));
  fId=chamber;

}

//------------------------------------------------------------------
Int_t AliMUONSegmentationTrigger::ModuleNumber(Int_t imodule){
// returns module number (from 0 to 126) corresponding to module imodule
  Int_t imod=0;
  for (Int_t i=0; i<AliMUONTriggerConstants::Nmodule(); i++) {
    if (AliMUONTriggerConstants::ModuleId(i)==imodule) { 
      imod=i;
      break;
    }
  }
  return imod;
}

//------------------------------------------------------------------
Float_t AliMUONSegmentationTrigger::StripSizeX(Int_t imodule){
// Returns x-strip size for given module imodule

  Int_t absimodule=TMath::Abs(imodule); 
  Int_t moduleNum=ModuleNumber(imodule);
  if (absimodule==51) {
    return 0; 
  } else {
    return TMath::Abs((fYcmax[moduleNum]-fYcmin[moduleNum])/
		      AliMUONTriggerConstants::NstripX(moduleNum));
  }  
}

//------------------------------------------------------------------
Float_t AliMUONSegmentationTrigger::StripSizeY(Int_t imodule){
// Returns y-strip size for given module imodule
        
  Int_t absimodule=TMath::Abs(imodule); 
  Int_t moduleNum=ModuleNumber(imodule);
  if (absimodule==51) {
    return 0;
  } else {
      return TMath::Abs((AliMUONTriggerConstants::XcMax(moduleNum) - 
			 AliMUONTriggerConstants::XcMin(moduleNum)) / 
			AliMUONTriggerConstants::NstripY(moduleNum));
  }
}

//------------------------------------------------------------------   
void AliMUONSegmentationTrigger::SetHit(Float_t xhit, Float_t yhit)
{
    // Sets virtual hit position, needed for evaluating pad response 
    // outside the tracking program 
    
  fXhit=xhit;
  fYhit=yhit;
}
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 "AliMUONSegmentationTrigger.h"
0c19630f	19	#include "AliMUONTriggerConstants.h"
d81db581	20	#include "AliRun.h"
d81db581	21	#include "AliMUON.h"
a9e2aefa	22	#include <TMath.h>
	23	#include <TRandom.h>
	24	#include <TArc.h>
	25	#include "AliMUONChamber.h"
70479d0e	26	#include <Riostream.h>
5fd73042	27
a9e2aefa	28	ClassImp(AliMUONSegmentationTrigger)
a9e2aefa	29
0c19630f	30	//------------------------------------------------------------------
d81db581	31	void AliMUONSegmentationTrigger::Init(Int_t chamber)
a9e2aefa	32	{
a9e2aefa	33	// initialize Module geometry
d81db581	34	AliMUON pMUON = (AliMUON ) gAlice->GetModule("MUON");
	35	AliMUONChamber* iChamber=&(pMUON->Chamber(chamber));
	36
ef077202	37	if(pMUON->GetDebug()>1) printf("%s: Initialize Trigger Chamber Module Geometry\n",ClassName());
9e1a0ddb	38
d81db581	39	Float_t zPos=iChamber->Z();
a9e2aefa	40	Float_t z1Pos=1603.5;
	41	fZscale = zPos/z1Pos;
	42
a9e2aefa	43	Float_t y1Cmin[126];
	44	Float_t y1Cmax[126];
	45
	46	Float_t dz=7.2;
	47	Float_t z1PosPlus=z1Pos+dz/2.;
	48	Float_t z1PosMinus=z1Pos-dz/2.;
	49
	50	Float_t z1pm=z1PosPlus/z1PosMinus;
	51	Float_t z1mp=z1PosMinus/z1PosPlus;
	52
ef077202	53	if(pMUON->GetDebug()>1) printf("%s: fZscale = %f \n",ClassName(),fZscale);
0c19630f	54
	55	// calculate yCmin and fYcmax
	56	Int_t i;
	57	for (i=62; i>=0; i--) {
	58	Int_t j=ModuleNumber(-AliMUONTriggerConstants::ModuleId(i)); // i == right, j == left
	59	if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==5) { // start with middle chamber
	60	if (AliMUONTriggerConstants::ModuleId(i)==51) { // special case (empty module)
	61	fYcmin[i]=fYcmax[i]=fYcmin[j]=fYcmax[j]=0.;
a9e2aefa	62	} else {
	63	y1Cmin[i]=y1Cmin[j]=-34;
	64	y1Cmax[i]=y1Cmax[j]=34;
0c19630f	65	fYcmin[i]=fYcmin[j]=-34.;
	66
	67	fYcmax[i]=fYcmax[j]=34.;
a9e2aefa	68	}
0c19630f	69	} else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==4) { // up
0c19630f	70	if (AliMUONTriggerConstants::ModuleId(i)!=41) {
a9e2aefa	71	y1Cmin[i]=y1Cmax[i+7]*z1pm;
a9e2aefa	72	y1Cmax[i]=y1Cmin[i]+68.;
0c19630f	73	fYcmin[i]=y1Cmin[i];
0c19630f	74	fYcmax[i]=fYcmin[i]+68.;
a9e2aefa	75
	76	y1Cmin[j]=y1Cmax[j+7]*z1mp;
	77	y1Cmax[j]=y1Cmin[j]+68.;
0c19630f	78	fYcmin[j]=y1Cmin[j];
0c19630f	79	fYcmax[j]=fYcmin[j]+68.;
a9e2aefa	80	} else {
	81	y1Cmin[i]=y1Cmin[ModuleNumber(42)]+17;
	82	y1Cmax[i]=y1Cmin[i]+51.;
0c19630f	83	fYcmin[i]=y1Cmin[i];
0c19630f	84	fYcmax[i]=fYcmin[i]+51.;
a9e2aefa	85
	86	y1Cmin[j]=y1Cmin[ModuleNumber(-42)]+17;
	87	y1Cmax[j]=y1Cmin[j]+51.;
0c19630f	88	fYcmin[j]=y1Cmin[j];
0c19630f	89	fYcmax[j]=fYcmin[j]+51.;
a9e2aefa	90	}
0c19630f	91	} else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==3) {
a9e2aefa	92	y1Cmin[i]=y1Cmax[i+7]*z1mp;
a9e2aefa	93	y1Cmax[i]=y1Cmin[i]+68.;
0c19630f	94	fYcmin[i]=y1Cmin[i];
0c19630f	95	fYcmax[i]=fYcmin[i]+68.;
a9e2aefa	96
	97	y1Cmin[j]=y1Cmax[j+7]*z1pm;
	98	y1Cmax[j]=y1Cmin[j]+68.;
0c19630f	99	fYcmin[j]=y1Cmin[j];
	100	fYcmax[j]=fYcmin[j]+68.;
	101	} else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==2) {
a9e2aefa	102	y1Cmin[i]=y1Cmax[i+7]*z1pm;
a9e2aefa	103	y1Cmax[i]=y1Cmin[i]+68.;
0c19630f	104	fYcmin[i]=y1Cmin[i];
0c19630f	105	fYcmax[i]=fYcmin[i]+68.;
a9e2aefa	106
	107	y1Cmin[j]=y1Cmax[j+7]*z1mp;
	108	y1Cmax[j]=y1Cmin[j]+68.;
0c19630f	109	fYcmin[j]=y1Cmin[j];
	110	fYcmax[j]=fYcmin[j]+68.;
	111	} else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==1) {
a9e2aefa	112	y1Cmin[i]=y1Cmax[i+7]*z1mp;
a9e2aefa	113	y1Cmax[i]=y1Cmin[i]+68.;
0c19630f	114	fYcmin[i]=y1Cmin[i];
0c19630f	115	fYcmax[i]=fYcmin[i]+68.;
a9e2aefa	116
	117	y1Cmin[j]=y1Cmax[j+7]*z1pm;
	118	y1Cmax[j]=y1Cmin[j]+68.;
0c19630f	119	fYcmin[j]=y1Cmin[j];
0c19630f	120	fYcmax[j]=fYcmin[j]+68.;
a9e2aefa	121	}
	122	}
	123
0c19630f	124	for (i=0; i<63; i++) { // second loop (fill lower part)
	125	Int_t j=ModuleNumber(-AliMUONTriggerConstants::ModuleId(i)); // i == right, j == left
	126	if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==6) {
	127	fYcmin[i]=-fYcmax[i-14];
	128	fYcmax[i]=-fYcmin[i-14];
	129	fYcmin[j]=-fYcmax[j-14];
	130	fYcmax[j]=-fYcmin[j-14];
	131	} else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==7) {
	132	fYcmin[i]=-fYcmax[i-28];
	133	fYcmax[i]=-fYcmin[i-28];
	134	fYcmin[j]=-fYcmax[j-28];
	135	fYcmax[j]=-fYcmin[j-28];
	136	} else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==8) {
	137	fYcmin[i]=-fYcmax[i-42];
	138	fYcmax[i]=-fYcmin[i-42];
	139	fYcmin[j]=-fYcmax[j-42];
	140	fYcmax[j]=-fYcmin[j-42];
	141	} else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==9) {
	142	fYcmin[i]=-fYcmax[i-56];
	143	fYcmax[i]=-fYcmin[i-56];
	144	fYcmin[j]=-fYcmax[j-56];
	145	fYcmax[j]=-fYcmin[j-56];
a9e2aefa	146	}
	147	}
	148
a9e2aefa	149	fNpx=124;
	150	fNpy=64;
	151
5fd73042	152	// Set parent chamber number
	153	fChamber=&(pMUON->Chamber(chamber));
	154	fId=chamber;
	155
a9e2aefa	156	}
	157
	158	//------------------------------------------------------------------
	159	Int_t AliMUONSegmentationTrigger::ModuleNumber(Int_t imodule){
	160	// returns module number (from 0 to 126) corresponding to module imodule
	161	Int_t imod=0;
0c19630f	162	for (Int_t i=0; i<AliMUONTriggerConstants::Nmodule(); i++) {
0c19630f	163	if (AliMUONTriggerConstants::ModuleId(i)==imodule) {
a9e2aefa	164	imod=i;
	165	break;
	166	}
	167	}
	168	return imod;
	169	}
	170
	171	//------------------------------------------------------------------
	172	Float_t AliMUONSegmentationTrigger::StripSizeX(Int_t imodule){
	173	// Returns x-strip size for given module imodule
	174
	175	Int_t absimodule=TMath::Abs(imodule);
	176	Int_t moduleNum=ModuleNumber(imodule);
0c19630f	177	if (absimodule==51) {
a9e2aefa	178	return 0;
a9e2aefa	179	} else {
0c19630f	180	return TMath::Abs((fYcmax[moduleNum]-fYcmin[moduleNum])/
	181	AliMUONTriggerConstants::NstripX(moduleNum));
	182	}
a9e2aefa	183	}
	184
	185	//------------------------------------------------------------------
	186	Float_t AliMUONSegmentationTrigger::StripSizeY(Int_t imodule){
	187	// Returns y-strip size for given module imodule
	188
	189	Int_t absimodule=TMath::Abs(imodule);
	190	Int_t moduleNum=ModuleNumber(imodule);
0c19630f	191	if (absimodule==51) {
a9e2aefa	192	return 0;
a9e2aefa	193	} else {
0c19630f	194	return TMath::Abs((AliMUONTriggerConstants::XcMax(moduleNum) -
	195	AliMUONTriggerConstants::XcMin(moduleNum)) /
	196	AliMUONTriggerConstants::NstripY(moduleNum));
a9e2aefa	197	}
	198	}
	199
	200	//------------------------------------------------------------------
	201	void AliMUONSegmentationTrigger::SetHit(Float_t xhit, Float_t yhit)
	202	{
	203	// Sets virtual hit position, needed for evaluating pad response
	204	// outside the tracking program
	205
ecfa008b	206	fXhit=xhit;
ecfa008b	207	fYhit=yhit;
a9e2aefa	208	}
0c19630f	209
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