[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 <TMath.h>
//#include <TRandom.h>
//#include <TArc.h>
//#include <Riostream.h>

#include "AliMUONSegmentationTrigger.h"
#include "AliMUONTriggerConstants.h"
#include "AliRun.h"
#include "AliMUON.h"
#include "AliMUONChamber.h"

ClassImp(AliMUONSegmentationTrigger)

//------------------------------------------------------------------
AliMUONSegmentationTrigger::AliMUONSegmentationTrigger()
  : AliMUONSegmentationV0()
{
// Constructor

  fChamber=0;
}

//------------------------------------------------------------------
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 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;

}
//------------------------------------------------------------------
void  AliMUONSegmentationTrigger::Draw(const char * /*opt*/) {}
//------------------------------------------------------------------
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;
}
//------------------------------------------------------------------
void   AliMUONSegmentationTrigger::SetHit(Float_t xhit, Float_t yhit, Float_t /*zhit*/)
{
  SetHit(xhit, yhit);
}
//------------------------------------------------------------------
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
30178c30	18	#include <TMath.h>
	19	//#include <TRandom.h>
	20	//#include <TArc.h>
	21	//#include <Riostream.h>
	22
a9e2aefa	23	#include "AliMUONSegmentationTrigger.h"
0c19630f	24	#include "AliMUONTriggerConstants.h"
d81db581	25	#include "AliRun.h"
d81db581	26	#include "AliMUON.h"
a9e2aefa	27	#include "AliMUONChamber.h"
5fd73042	28
a9e2aefa	29	ClassImp(AliMUONSegmentationTrigger)
a9e2aefa	30
30178c30	31	//------------------------------------------------------------------
	32	AliMUONSegmentationTrigger::AliMUONSegmentationTrigger()
	33	: AliMUONSegmentationV0()
	34	{
	35	// Constructor
	36
	37	fChamber=0;
	38	}
	39
0c19630f	40	//------------------------------------------------------------------
d81db581	41	void AliMUONSegmentationTrigger::Init(Int_t chamber)
a9e2aefa	42	{
a9e2aefa	43	// initialize Module geometry
d81db581	44	AliMUON pMUON = (AliMUON ) gAlice->GetModule("MUON");
	45	AliMUONChamber* iChamber=&(pMUON->Chamber(chamber));
	46
ef077202	47	if(pMUON->GetDebug()>1) printf("%s: Initialize Trigger Chamber Module Geometry\n",ClassName());
9e1a0ddb	48
d81db581	49	Float_t zPos=iChamber->Z();
deea6fd8	50	Float_t z1Pos=-1603.5;
a9e2aefa	51	fZscale = zPos/z1Pos;
a9e2aefa	52
a9e2aefa	53	Float_t y1Cmin[126];
	54	Float_t y1Cmax[126];
	55
	56	Float_t dz=7.2;
deea6fd8	57	// Float_t z1PosPlus=z1Pos+dz/2.;
	58	// Float_t z1PosMinus=z1Pos-dz/2.;
	59	Float_t z1PosPlus=z1Pos-dz/2.;
	60	Float_t z1PosMinus=z1Pos+dz/2.;
a9e2aefa	61
	62	Float_t z1pm=z1PosPlus/z1PosMinus;
	63	Float_t z1mp=z1PosMinus/z1PosPlus;
	64
ef077202	65	if(pMUON->GetDebug()>1) printf("%s: fZscale = %f \n",ClassName(),fZscale);
0c19630f	66
	67	// calculate yCmin and fYcmax
	68	Int_t i;
	69	for (i=62; i>=0; i--) {
	70	Int_t j=ModuleNumber(-AliMUONTriggerConstants::ModuleId(i)); // i == right, j == left
	71	if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==5) { // start with middle chamber
	72	if (AliMUONTriggerConstants::ModuleId(i)==51) { // special case (empty module)
	73	fYcmin[i]=fYcmax[i]=fYcmin[j]=fYcmax[j]=0.;
a9e2aefa	74	} else {
	75	y1Cmin[i]=y1Cmin[j]=-34;
	76	y1Cmax[i]=y1Cmax[j]=34;
0c19630f	77	fYcmin[i]=fYcmin[j]=-34.;
	78
	79	fYcmax[i]=fYcmax[j]=34.;
a9e2aefa	80	}
0c19630f	81	} else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==4) { // up
0c19630f	82	if (AliMUONTriggerConstants::ModuleId(i)!=41) {
a9e2aefa	83	y1Cmin[i]=y1Cmax[i+7]*z1pm;
a9e2aefa	84	y1Cmax[i]=y1Cmin[i]+68.;
0c19630f	85	fYcmin[i]=y1Cmin[i];
0c19630f	86	fYcmax[i]=fYcmin[i]+68.;
a9e2aefa	87
	88	y1Cmin[j]=y1Cmax[j+7]*z1mp;
	89	y1Cmax[j]=y1Cmin[j]+68.;
0c19630f	90	fYcmin[j]=y1Cmin[j];
0c19630f	91	fYcmax[j]=fYcmin[j]+68.;
a9e2aefa	92	} else {
	93	y1Cmin[i]=y1Cmin[ModuleNumber(42)]+17;
	94	y1Cmax[i]=y1Cmin[i]+51.;
0c19630f	95	fYcmin[i]=y1Cmin[i];
0c19630f	96	fYcmax[i]=fYcmin[i]+51.;
a9e2aefa	97
	98	y1Cmin[j]=y1Cmin[ModuleNumber(-42)]+17;
	99	y1Cmax[j]=y1Cmin[j]+51.;
0c19630f	100	fYcmin[j]=y1Cmin[j];
0c19630f	101	fYcmax[j]=fYcmin[j]+51.;
a9e2aefa	102	}
0c19630f	103	} else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==3) {
a9e2aefa	104	y1Cmin[i]=y1Cmax[i+7]*z1mp;
a9e2aefa	105	y1Cmax[i]=y1Cmin[i]+68.;
0c19630f	106	fYcmin[i]=y1Cmin[i];
0c19630f	107	fYcmax[i]=fYcmin[i]+68.;
a9e2aefa	108
	109	y1Cmin[j]=y1Cmax[j+7]*z1pm;
	110	y1Cmax[j]=y1Cmin[j]+68.;
0c19630f	111	fYcmin[j]=y1Cmin[j];
	112	fYcmax[j]=fYcmin[j]+68.;
	113	} else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==2) {
a9e2aefa	114	y1Cmin[i]=y1Cmax[i+7]*z1pm;
a9e2aefa	115	y1Cmax[i]=y1Cmin[i]+68.;
0c19630f	116	fYcmin[i]=y1Cmin[i];
0c19630f	117	fYcmax[i]=fYcmin[i]+68.;
a9e2aefa	118
	119	y1Cmin[j]=y1Cmax[j+7]*z1mp;
	120	y1Cmax[j]=y1Cmin[j]+68.;
0c19630f	121	fYcmin[j]=y1Cmin[j];
	122	fYcmax[j]=fYcmin[j]+68.;
	123	} else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==1) {
a9e2aefa	124	y1Cmin[i]=y1Cmax[i+7]*z1mp;
a9e2aefa	125	y1Cmax[i]=y1Cmin[i]+68.;
0c19630f	126	fYcmin[i]=y1Cmin[i];
0c19630f	127	fYcmax[i]=fYcmin[i]+68.;
a9e2aefa	128
	129	y1Cmin[j]=y1Cmax[j+7]*z1pm;
	130	y1Cmax[j]=y1Cmin[j]+68.;
0c19630f	131	fYcmin[j]=y1Cmin[j];
0c19630f	132	fYcmax[j]=fYcmin[j]+68.;
a9e2aefa	133	}
	134	}
	135
0c19630f	136	for (i=0; i<63; i++) { // second loop (fill lower part)
	137	Int_t j=ModuleNumber(-AliMUONTriggerConstants::ModuleId(i)); // i == right, j == left
	138	if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==6) {
	139	fYcmin[i]=-fYcmax[i-14];
	140	fYcmax[i]=-fYcmin[i-14];
	141	fYcmin[j]=-fYcmax[j-14];
	142	fYcmax[j]=-fYcmin[j-14];
	143	} else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==7) {
	144	fYcmin[i]=-fYcmax[i-28];
	145	fYcmax[i]=-fYcmin[i-28];
	146	fYcmin[j]=-fYcmax[j-28];
	147	fYcmax[j]=-fYcmin[j-28];
	148	} else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==8) {
	149	fYcmin[i]=-fYcmax[i-42];
	150	fYcmax[i]=-fYcmin[i-42];
	151	fYcmin[j]=-fYcmax[j-42];
	152	fYcmax[j]=-fYcmin[j-42];
	153	} else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==9) {
	154	fYcmin[i]=-fYcmax[i-56];
	155	fYcmax[i]=-fYcmin[i-56];
	156	fYcmin[j]=-fYcmax[j-56];
	157	fYcmax[j]=-fYcmin[j-56];
a9e2aefa	158	}
	159	}
	160
a9e2aefa	161	fNpx=124;
	162	fNpy=64;
	163
5fd73042	164	// Set parent chamber number
	165	fChamber=&(pMUON->Chamber(chamber));
	166	fId=chamber;
	167
a9e2aefa	168	}
e889a146	169	//------------------------------------------------------------------
1373d50f	170	void AliMUONSegmentationTrigger::Draw(const char * /opt/) {}
a9e2aefa	171	//------------------------------------------------------------------
	172	Int_t AliMUONSegmentationTrigger::ModuleNumber(Int_t imodule){
	173	// returns module number (from 0 to 126) corresponding to module imodule
	174	Int_t imod=0;
0c19630f	175	for (Int_t i=0; i<AliMUONTriggerConstants::Nmodule(); i++) {
0c19630f	176	if (AliMUONTriggerConstants::ModuleId(i)==imodule) {
a9e2aefa	177	imod=i;
	178	break;
	179	}
	180	}
	181	return imod;
	182	}
e889a146	183	//------------------------------------------------------------------
	184	void AliMUONSegmentationTrigger::SetHit(Float_t xhit, Float_t yhit, Float_t /zhit/)
	185	{
	186	SetHit(xhit, yhit);
	187	}
a9e2aefa	188	//------------------------------------------------------------------
	189	Float_t AliMUONSegmentationTrigger::StripSizeX(Int_t imodule){
	190	// Returns x-strip size for given module imodule
	191
	192	Int_t absimodule=TMath::Abs(imodule);
	193	Int_t moduleNum=ModuleNumber(imodule);
0c19630f	194	if (absimodule==51) {
a9e2aefa	195	return 0;
a9e2aefa	196	} else {
0c19630f	197	return TMath::Abs((fYcmax[moduleNum]-fYcmin[moduleNum])/
	198	AliMUONTriggerConstants::NstripX(moduleNum));
	199	}
a9e2aefa	200	}
	201
	202	//------------------------------------------------------------------
	203	Float_t AliMUONSegmentationTrigger::StripSizeY(Int_t imodule){
	204	// Returns y-strip size for given module imodule
	205
	206	Int_t absimodule=TMath::Abs(imodule);
	207	Int_t moduleNum=ModuleNumber(imodule);
0c19630f	208	if (absimodule==51) {
a9e2aefa	209	return 0;
a9e2aefa	210	} else {
0c19630f	211	return TMath::Abs((AliMUONTriggerConstants::XcMax(moduleNum) -
	212	AliMUONTriggerConstants::XcMin(moduleNum)) /
	213	AliMUONTriggerConstants::NstripY(moduleNum));
a9e2aefa	214	}
	215	}
	216
	217	//------------------------------------------------------------------
	218	void AliMUONSegmentationTrigger::SetHit(Float_t xhit, Float_t yhit)
	219	{
	220	// Sets virtual hit position, needed for evaluating pad response
	221	// outside the tracking program
	222
ecfa008b	223	fXhit=xhit;
ecfa008b	224	fYhit=yhit;
a9e2aefa	225	}
0c19630f	226
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