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

// $Id$
//
// Class AliMUONTriggerGeometryBuilder
// -----------------------------------
// MUON Trigger stations geometry construction class.
//
// Author: Philippe Crochette, LPC Clermont-Ferrand

#include <TVirtualMC.h>
#include <TGeoMatrix.h>

#include "AliLog.h"

#include "AliMUONTriggerGeometryBuilder.h"
#include "AliMUON.h"
#include "AliMUONChamber.h"
#include "AliMUONGeometryModule.h"
#include "AliMUONGeometryEnvelopeStore.h"

ClassImp(AliMUONTriggerGeometryBuilder)

//______________________________________________________________________________
AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(AliMUON* muon)
 : AliMUONVGeometryBuilder("trigger.dat",
                           muon->Chamber(10).GetGeometry(), 
			   muon->Chamber(11).GetGeometry(),
                           muon->Chamber(12).GetGeometry(),
			   muon->Chamber(13).GetGeometry()),
   fMUON(muon)
{
// Standard constructor

}

//______________________________________________________________________________
AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder()
 : AliMUONVGeometryBuilder(),
   fMUON(0)
{
// Default constructor
}


//______________________________________________________________________________
AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(const AliMUONTriggerGeometryBuilder& rhs)
  : AliMUONVGeometryBuilder(rhs)
{
// Protected copy constructor

  AliFatal("Copy constructor is not implemented.");
}

//______________________________________________________________________________
AliMUONTriggerGeometryBuilder::~AliMUONTriggerGeometryBuilder() {
//
}

//______________________________________________________________________________
AliMUONTriggerGeometryBuilder& 
AliMUONTriggerGeometryBuilder::operator = (const AliMUONTriggerGeometryBuilder& rhs) 
{
// Protected assignement operator

  // check assignement to self
  if (this == &rhs) return *this;

  AliFatal("Assignment operator is not implemented.");
    
  return *this;  
}

//
// public methods
//

//______________________________________________________________________________
void AliMUONTriggerGeometryBuilder::CreateGeometry()
{
// From AliMUONv1::CreateGeometry()

    /* 
       zpos1 and zpos2 are the middle of the first and second
       planes of station 1 (+1m for second station):
       zpos1=(zpos1m+zpos1p)/2=(15999+16071)/2=16035 mm, thick/2=40 mm
       zpos2=(zpos2m+zpos2p)/2=(16169+16241)/2=16205 mm, thick/2=40 mm
       zposxm and zposxp= middles of gaz gaps within a detection plane
       rem: the total thickness accounts for 1 mm of al on both
       side of the RPCs (see zpos1 and zpos2)
    */
    
    Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
    Int_t idAir= idtmed[1100]; // medium 1
    Int_t idAlu1=idtmed[1103]; // medium 4
    Int_t detElemId=0;          // Detection Element Number    
    Float_t tpar[3];
    Double_t dpar[3];    
    
// vertical gap between right and left chambers (kDXZERO*2=4cm)
    const Float_t kDXZERO=2.; 
// main distances for chamber definition in first plane/first station
    const Float_t kXMIN=34.;       
    const Float_t kXMED=51.;                                
    const Float_t kXMAX=255.; 
// 090704 kXMAX changed from 272 to 255.
// (see fig.2-4 & 2-5 of Local Trigger Board PRR)
// segmentation updated accordingly
    const Float_t kYMIN=34.;                              
    const Float_t kYMAX=51.;                              
// inner/outer radius of flange between beam shield. and chambers (1/station)
//    const Float_t kRMIN[2]={50.,50.};
//    const Float_t kRMAX[2]={64.,68.};
// z position of the middle of the gas gap in mother vol 
    const Float_t kZm=-3.6;
    const Float_t kZp=+3.6;
    
    AliMUONChamber *iChamber, *iChamber1, *iChamber2;
    iChamber1 = &fMUON->Chamber(10);
    Float_t zpos1= iChamber1->Z(); 
    iChamber2 = &fMUON->Chamber(11);

    Double_t dstation =  ( ( - iChamber2->Z()) - ( - iChamber1->Z()) ) /2.1;
    Float_t par[3];
    par[2] = dstation;

// ratio of zpos1m/zpos1p and inverse for first plane
    Float_t zmp=(zpos1-3.6)/(zpos1+3.6);
    Float_t zpm=1./zmp;
    
    Int_t icount=0;  // chamber counter (0 1 2 3)
    
    for (Int_t istation=0; istation<2; istation++) { // loop on stations
	for (Int_t iplane=0; iplane<2; iplane++) { // loop on detection planes
	    
	    Int_t iVolNum=1; // counter Volume Number
	    icount = Int_t(iplane*TMath::Power(2,0))+
		Int_t(istation*TMath::Power(2,1));
	    
	    iChamber = &fMUON->Chamber(10+icount);
	    par[0] = iChamber->RInner(); 
	    par[1] = iChamber->ROuter();
	    Char_t volName[6];
	    sprintf(volName,"%s%d", "CH",11+icount);
 	    gMC->Gsvolu(volName,"TUBE", idAir, par, 3);
 	    iChamber->GetGeometry()->SetVolume(volName);
	    Float_t zpos =  iChamber->Z();	     
	    
/* removed 03/18/05
// Flange between beam shielding and RPC 
	    tpar[0]= kRMIN[istation];
	    tpar[1]= kRMAX[istation];
	    tpar[2]= 4.0;	    
	    char volFlange[5];
	    sprintf(volFlange,"SF%dA",icount+1);	 
	    gMC->Gsvolu(volFlange,"TUBE",idAlu1,tpar,3);     // Al
            // changed by ivana
	    //gMC->Gspos(volFlange,1,"ALIC",0.,0.,zpos,0,"MANY");
	    iChamber->GetGeometry()->GetEnvelopeStore()
	      ->AddEnvelope(volFlange, 0, false, "MANY");
*/
	    
// scaling factor
	    Float_t zRatio = zpos / zpos1;
	    
// envelopes (same size except line 5, all virtual)
	    char volEnv[18][5];
	    tpar[1] = kYMIN * zRatio; 
	    tpar[2] = 0.4;
	    Int_t i=0;    // counter
	    for (Int_t icolumn=0; icolumn<2; icolumn++) {
		for (Int_t iline=1; iline<10; iline++){
		    tpar[0] = (kXMAX/2.) * zRatio;
		    if (iline==5) tpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
		    if (icolumn==0) 
			sprintf(volEnv[i],"S%dR%d",icount,iline);
		    else
			sprintf(volEnv[i],"S%dL%d",icount,iline);
		    gMC->Gsvolu(volEnv[i],"BOX",idAir,tpar,0); 
		    i++;
		}
	    }

// chamber prototype
	    tpar[0]= 0.;
	    tpar[1]= 0.;
	    tpar[2]= 0.;	    char volAlu[5];     // Alu 
	    char volBak[5];     // Bakelite
	    char volGaz[5];     // Gas streamer	    
	    sprintf(volAlu,"SC%dA",icount+1);
	    sprintf(volBak,"SB%dA",icount+1);
	    sprintf(volGaz,"S%dG",icount+11);
	    gMC->Gsvolu(volAlu,"BOX",idAlu1,tpar,0);         // Al
	    gMC->Gsvolu(volBak,"BOX",idtmed[1107],tpar,0);   // Bakelite
	    gMC->Gsvolu(volGaz,"BOX",idtmed[1106],tpar,0);   // Gas streamer
	    tpar[0] = -1.;
	    tpar[1] = -1.;
	    tpar[2] = 0.1;    
	    gMC->Gsposp(volGaz,1,volBak,0.,0.,0.,0,"ONLY",tpar,3);
	    tpar[2] = 0.3;
	    gMC->Gsposp(volBak,1,volAlu,0.,0.,0.,0,"ONLY",tpar,3);

// chamber type A
	    Float_t xEnv = (kDXZERO+kXMED+(kXMAX-kXMED)/2.)*zRatio;
	    Float_t yEnvM = 0.;	 // y low position of envelope in chamber
	    Float_t yEnvP = 0.;	 // y up position of envelope in chamber
	    Float_t yEnvPsave = 0.; // tmp data
	    Float_t yEnvMsave = 0.; // tmp data
	    Float_t xpos = 0.; // x position of RPC in envelope	    
	    Float_t ypos = 0.; // y position of RPC in envelope
	    dpar[2] = 0.4;	    
	    dpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
	    dpar[1] = kYMIN * zRatio;

	    detElemId = (10+icount+1)*100;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[4], detElemId, true, TGeoTranslation(xEnv,yEnvP,kZp));
	    detElemId = (10+icount+1)*100+9;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[13], detElemId, true, TGeoTranslation(-xEnv,yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));

	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[4],iVolNum++,3, dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[13],iVolNum++,3, dpar);	    

// chamber type B (plus envelope chambers B & C)   
	    xEnv = (kDXZERO+kXMAX/2.)*zRatio;
	    yEnvPsave = yEnvP;
	    yEnvMsave = yEnvM;
	    yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
	    yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
	    dpar[0] = ((kXMAX-kXMIN)/2.) * zRatio;
	    dpar[1] = ((kYMAX-kYMIN)/2.) * zRatio;
	    xpos = kXMIN/2. * zRatio;
	    ypos = (kYMIN - kYMIN/4.) * zRatio;

	    detElemId = (10+icount+1)*100+17;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[3], detElemId, true, TGeoTranslation( xEnv,-yEnvM,kZm));	    
	    detElemId = (10+icount+1)*100+1;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[5], detElemId, true, TGeoTranslation( xEnv, yEnvM,kZm));
	    detElemId = (10+icount+1)*100+10;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[12], detElemId, true, TGeoTranslation(-xEnv,-yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
	    detElemId = (10+icount+1)*100+8;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[14], detElemId, true, TGeoTranslation(-xEnv, yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));

	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);

// chamber type C (note: same Z than type B)
	    dpar[0] = (kXMAX/2)*zRatio;
	    dpar[1] = (kYMAX/2)*zRatio;
	    xpos = 0.;	    
	    ypos = ((kYMAX - kYMIN)/2.) * zRatio;

	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);

// chamber type D, E and F (same size)
// D	    
	    yEnvPsave = yEnvP;
	    yEnvMsave = yEnvM;
	    yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
	    yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
	    dpar[0] = (kXMAX/2.)*zRatio;
	    dpar[1] =  kYMIN*zRatio;

	    detElemId = (10+icount+1)*100+16;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[2], detElemId, true, TGeoTranslation(xEnv,-yEnvP,kZp));
	    detElemId = (10+icount+1)*100+2;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[6], detElemId, true, TGeoTranslation(xEnv, yEnvP,kZp));
	    detElemId = (10+icount+1)*100+11;
            GetEnvelopes(10+icount)->AddEnvelope(volEnv[11], detElemId, true, TGeoTranslation(-xEnv,-yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
	    detElemId = (10+icount+1)*100+7;
            GetEnvelopes(10+icount)->AddEnvelope(volEnv[15], detElemId, true, TGeoTranslation(-xEnv, yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));

	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[2],iVolNum++,3, dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[6],iVolNum++,3, dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[11],iVolNum++,3, dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[15],iVolNum++,3, dpar);

// E
	    yEnvPsave = yEnvP;
	    yEnvMsave = yEnvM;
	    yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
	    yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;

	    detElemId = (10+icount+1)*100+15;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[1], detElemId, true, TGeoTranslation(xEnv,-yEnvM,kZm));
	    detElemId = (10+icount+1)*100+3;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[7], detElemId, true, TGeoTranslation(xEnv, yEnvM,kZm));
	    detElemId = (10+icount+1)*100+12;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[10], detElemId, true, TGeoTranslation(-xEnv,-yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
	    detElemId = (10+icount+1)*100+6;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[16], detElemId, true, TGeoTranslation(-xEnv, yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));

	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[1],iVolNum++,3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[7],iVolNum++,3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[10],iVolNum++,3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[16],iVolNum++,3,dpar);


// F
	    yEnvPsave = yEnvP;
	    yEnvMsave = yEnvM;
	    yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
	    yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;

	    detElemId = (10+icount+1)*100+14;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[0], detElemId, true, TGeoTranslation(xEnv,-yEnvP,kZp));
	    detElemId = (10+icount+1)*100+4;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[8], detElemId, true, TGeoTranslation(xEnv, yEnvP,kZp));
	    detElemId = (10+icount+1)*100+13;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[9], detElemId, true, TGeoTranslation(-xEnv,-yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
	    detElemId = (10+icount+1)*100+5;
	    GetEnvelopes(10+icount)->AddEnvelope(volEnv[17], detElemId, true, TGeoTranslation(-xEnv, yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
	    
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[0],iVolNum++,3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[8],iVolNum++,3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[9],iVolNum++,3,dpar);
	    GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[17],iVolNum++,3,dpar);

	} // end loop on detection planes
    } // end loop on stations    
}

//______________________________________________________________________________
void AliMUONTriggerGeometryBuilder::SetTransformations() 
{
// Defines the transformations for the trigger chambers.
// ---
    Double_t zpos1, zpos2;    
    AliMUONChamber *iChamber1, *iChamber2;

    iChamber1 = &fMUON->Chamber(10);
    zpos1= iChamber1->Z(); 
    iChamber1->GetGeometry()
	->SetTranslation(TGeoTranslation(0., 0., zpos1));
    
    iChamber2 = &fMUON->Chamber(11);
    zpos2 = iChamber2->Z(); 
    iChamber2->GetGeometry()
	->SetTranslation(TGeoTranslation(0., 0., zpos2));

    iChamber1 = &fMUON->Chamber(12);
    zpos1 = iChamber1->Z(); 
    iChamber1->GetGeometry()
	->SetTranslation(TGeoTranslation(0., 0., zpos1));

    iChamber2 = &fMUON->Chamber(13);
    zpos2 = iChamber2->Z(); 
    iChamber2->GetGeometry()
	->SetTranslation(TGeoTranslation(0., 0., zpos2));

}

//______________________________________________________________________________
void AliMUONTriggerGeometryBuilder::SetSensitiveVolumes()
{
// Defines the sensitive volumes for trigger station chambers.
// ---

  GetGeometry(10)->SetSensitiveVolume("S11G");
  GetGeometry(11)->SetSensitiveVolume("S12G");
  GetGeometry(12)->SetSensitiveVolume("S13G");
  GetGeometry(13)->SetSensitiveVolume("S14G");
}
Commit	Line	Data
30178c30	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
d1cd2474	16	// $Id$
	17	//
	18	// Class AliMUONTriggerGeometryBuilder
	19	// -----------------------------------
	20	// MUON Trigger stations geometry construction class.
	21	//
	22	// Author: Philippe Crochette, LPC Clermont-Ferrand
	23
	24	#include <TVirtualMC.h>
	25	#include <TGeoMatrix.h>
	26
e118b27e	27	#include "AliLog.h"
e118b27e	28
d1cd2474	29	#include "AliMUONTriggerGeometryBuilder.h"
	30	#include "AliMUON.h"
	31	#include "AliMUONChamber.h"
e118b27e	32	#include "AliMUONGeometryModule.h"
a432117a	33	#include "AliMUONGeometryEnvelopeStore.h"
d1cd2474	34
	35	ClassImp(AliMUONTriggerGeometryBuilder)
	36
	37	//______________________________________________________________________________
	38	AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(AliMUON* muon)
a432117a	39	: AliMUONVGeometryBuilder("trigger.dat",
e118b27e	40	muon->Chamber(10).GetGeometry(),
	41	muon->Chamber(11).GetGeometry(),
	42	muon->Chamber(12).GetGeometry(),
	43	muon->Chamber(13).GetGeometry()),
d1cd2474	44	fMUON(muon)
	45	{
	46	// Standard constructor
	47
	48	}
	49
	50	//______________________________________________________________________________
	51	AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder()
	52	: AliMUONVGeometryBuilder(),
	53	fMUON(0)
	54	{
	55	// Default constructor
	56	}
	57
	58
	59	//______________________________________________________________________________
	60	AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(const AliMUONTriggerGeometryBuilder& rhs)
	61	: AliMUONVGeometryBuilder(rhs)
	62	{
30178c30	63	// Protected copy constructor
30178c30	64
8c343c7c	65	AliFatal("Copy constructor is not implemented.");
d1cd2474	66	}
	67
	68	//______________________________________________________________________________
	69	AliMUONTriggerGeometryBuilder::~AliMUONTriggerGeometryBuilder() {
	70	//
	71	}
	72
	73	//______________________________________________________________________________
	74	AliMUONTriggerGeometryBuilder&
	75	AliMUONTriggerGeometryBuilder::operator = (const AliMUONTriggerGeometryBuilder& rhs)
	76	{
30178c30	77	// Protected assignement operator
30178c30	78
d1cd2474	79	// check assignement to self
	80	if (this == &rhs) return *this;
	81
8c343c7c	82	AliFatal("Assignment operator is not implemented.");
d1cd2474	83
	84	return *this;
	85	}
	86
	87	//
	88	// public methods
	89	//
	90
	91	//______________________________________________________________________________
	92	void AliMUONTriggerGeometryBuilder::CreateGeometry()
	93	{
	94	// From AliMUONv1::CreateGeometry()
	95
	96	/*
	97	zpos1 and zpos2 are the middle of the first and second
	98	planes of station 1 (+1m for second station):
	99	zpos1=(zpos1m+zpos1p)/2=(15999+16071)/2=16035 mm, thick/2=40 mm
	100	zpos2=(zpos2m+zpos2p)/2=(16169+16241)/2=16205 mm, thick/2=40 mm
	101	zposxm and zposxp= middles of gaz gaps within a detection plane
	102	rem: the total thickness accounts for 1 mm of al on both
	103	side of the RPCs (see zpos1 and zpos2)
	104	*/
	105
	106	Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
	107	Int_t idAir= idtmed[1100]; // medium 1
	108	Int_t idAlu1=idtmed[1103]; // medium 4
a432117a	109	Int_t detElemId=0; // Detection Element Number
d1cd2474	110	Float_t tpar[3];
	111	Double_t dpar[3];
	112
	113	// vertical gap between right and left chambers (kDXZERO*2=4cm)
	114	const Float_t kDXZERO=2.;
	115	// main distances for chamber definition in first plane/first station
	116	const Float_t kXMIN=34.;
	117	const Float_t kXMED=51.;
b6a52ffa	118	const Float_t kXMAX=255.;
b6a52ffa	119	// 090704 kXMAX changed from 272 to 255.
d1cd2474	120	// (see fig.2-4 & 2-5 of Local Trigger Board PRR)
b6a52ffa	121	// segmentation updated accordingly
d1cd2474	122	const Float_t kYMIN=34.;
	123	const Float_t kYMAX=51.;
	124	// inner/outer radius of flange between beam shield. and chambers (1/station)
936e7ca3	125	// const Float_t kRMIN[2]={50.,50.};
936e7ca3	126	// const Float_t kRMAX[2]={64.,68.};
d1cd2474	127	// z position of the middle of the gas gap in mother vol
d1cd2474	128	const Float_t kZm=-3.6;
65bcb249	129	const Float_t kZp=+3.6;
65bcb249	130
eb571c25	131	AliMUONChamber iChamber, iChamber1, *iChamber2;
e118b27e	132	iChamber1 = &fMUON->Chamber(10);
65bcb249	133	Float_t zpos1= iChamber1->Z();
eb571c25	134	iChamber2 = &fMUON->Chamber(11);
eb571c25	135
db51f44c	136	Double_t dstation = ( ( - iChamber2->Z()) - ( - iChamber1->Z()) ) /2.1;
eb571c25	137	Float_t par[3];
	138	par[2] = dstation;
	139
d1cd2474	140	// ratio of zpos1m/zpos1p and inverse for first plane
	141	Float_t zmp=(zpos1-3.6)/(zpos1+3.6);
	142	Float_t zpm=1./zmp;
	143
	144	Int_t icount=0; // chamber counter (0 1 2 3)
	145
	146	for (Int_t istation=0; istation<2; istation++) { // loop on stations
	147	for (Int_t iplane=0; iplane<2; iplane++) { // loop on detection planes
	148
	149	Int_t iVolNum=1; // counter Volume Number
	150	icount = Int_t(iplane*TMath::Power(2,0))+
	151	Int_t(istation*TMath::Power(2,1));
	152
e118b27e	153	iChamber = &fMUON->Chamber(10+icount);
eb571c25	154	par[0] = iChamber->RInner();
	155	par[1] = iChamber->ROuter();
	156	Char_t volName[6];
	157	sprintf(volName,"%s%d", "CH",11+icount);
	158	gMC->Gsvolu(volName,"TUBE", idAir, par, 3);
	159	iChamber->GetGeometry()->SetVolume(volName);
65bcb249	160	Float_t zpos = iChamber->Z();
d1cd2474	161
880610c7	162	/* removed 03/18/05
d1cd2474	163	// Flange between beam shielding and RPC
	164	tpar[0]= kRMIN[istation];
	165	tpar[1]= kRMAX[istation];
	166	tpar[2]= 4.0;
	167	char volFlange[5];
	168	sprintf(volFlange,"SF%dA",icount+1);
	169	gMC->Gsvolu(volFlange,"TUBE",idAlu1,tpar,3); // Al
	170	// changed by ivana
	171	//gMC->Gspos(volFlange,1,"ALIC",0.,0.,zpos,0,"MANY");
a432117a	172	iChamber->GetGeometry()->GetEnvelopeStore()
a432117a	173	->AddEnvelope(volFlange, 0, false, "MANY");
880610c7	174	*/
d1cd2474	175
	176	// scaling factor
	177	Float_t zRatio = zpos / zpos1;
	178
	179	// envelopes (same size except line 5, all virtual)
	180	char volEnv[18][5];
	181	tpar[1] = kYMIN * zRatio;
	182	tpar[2] = 0.4;
	183	Int_t i=0; // counter
	184	for (Int_t icolumn=0; icolumn<2; icolumn++) {
	185	for (Int_t iline=1; iline<10; iline++){
	186	tpar[0] = (kXMAX/2.) * zRatio;
	187	if (iline==5) tpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
	188	if (icolumn==0)
d1cd2474	189	sprintf(volEnv[i],"S%dR%d",icount,iline);
528abf6f	190	else
528abf6f	191	sprintf(volEnv[i],"S%dL%d",icount,iline);
d1cd2474	192	gMC->Gsvolu(volEnv[i],"BOX",idAir,tpar,0);
	193	i++;
	194	}
	195	}
	196
	197	// chamber prototype
	198	tpar[0]= 0.;
	199	tpar[1]= 0.;
936e7ca3	200	tpar[2]= 0.; char volAlu[5]; // Alu
d1cd2474	201	char volBak[5]; // Bakelite
	202	char volGaz[5]; // Gas streamer
	203	sprintf(volAlu,"SC%dA",icount+1);
	204	sprintf(volBak,"SB%dA",icount+1);
eb571c25	205	sprintf(volGaz,"S%dG",icount+11);
d1cd2474	206	gMC->Gsvolu(volAlu,"BOX",idAlu1,tpar,0); // Al
	207	gMC->Gsvolu(volBak,"BOX",idtmed[1107],tpar,0); // Bakelite
	208	gMC->Gsvolu(volGaz,"BOX",idtmed[1106],tpar,0); // Gas streamer
	209	tpar[0] = -1.;
	210	tpar[1] = -1.;
	211	tpar[2] = 0.1;
	212	gMC->Gsposp(volGaz,1,volBak,0.,0.,0.,0,"ONLY",tpar,3);
	213	tpar[2] = 0.3;
	214	gMC->Gsposp(volBak,1,volAlu,0.,0.,0.,0,"ONLY",tpar,3);
	215
	216	// chamber type A
	217	Float_t xEnv = (kDXZERO+kXMED+(kXMAX-kXMED)/2.)*zRatio;
	218	Float_t yEnvM = 0.; // y low position of envelope in chamber
	219	Float_t yEnvP = 0.; // y up position of envelope in chamber
	220	Float_t yEnvPsave = 0.; // tmp data
	221	Float_t yEnvMsave = 0.; // tmp data
	222	Float_t xpos = 0.; // x position of RPC in envelope
	223	Float_t ypos = 0.; // y position of RPC in envelope
	224	dpar[2] = 0.4;
	225	dpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
	226	dpar[1] = kYMIN * zRatio;
	227
65bcb249	228	detElemId = (10+icount+1)*100;
8bd68448	229	GetEnvelopes(10+icount)->AddEnvelope(volEnv[4], detElemId, true, TGeoTranslation(xEnv,yEnvP,kZp));
65bcb249	230	detElemId = (10+icount+1)*100+9;
8bd68448	231	GetEnvelopes(10+icount)->AddEnvelope(volEnv[13], detElemId, true, TGeoTranslation(-xEnv,yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
d1cd2474	232
a432117a	233	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[4],iVolNum++,3, dpar);
a432117a	234	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[13],iVolNum++,3, dpar);
d1cd2474	235
	236	// chamber type B (plus envelope chambers B & C)
	237	xEnv = (kDXZERO+kXMAX/2.)*zRatio;
	238	yEnvPsave = yEnvP;
	239	yEnvMsave = yEnvM;
	240	yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
	241	yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
	242	dpar[0] = ((kXMAX-kXMIN)/2.) * zRatio;
	243	dpar[1] = ((kYMAX-kYMIN)/2.) * zRatio;
	244	xpos = kXMIN/2. * zRatio;
	245	ypos = (kYMIN - kYMIN/4.) * zRatio;
	246
65bcb249	247	detElemId = (10+icount+1)*100+17;
	248	GetEnvelopes(10+icount)->AddEnvelope(volEnv[3], detElemId, true, TGeoTranslation( xEnv,-yEnvM,kZm));
	249	detElemId = (10+icount+1)*100+1;
8bd68448	250	GetEnvelopes(10+icount)->AddEnvelope(volEnv[5], detElemId, true, TGeoTranslation( xEnv, yEnvM,kZm));
65bcb249	251	detElemId = (10+icount+1)*100+10;
8bd68448	252	GetEnvelopes(10+icount)->AddEnvelope(volEnv[12], detElemId, true, TGeoTranslation(-xEnv,-yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
65bcb249	253	detElemId = (10+icount+1)*100+8;
8bd68448	254	GetEnvelopes(10+icount)->AddEnvelope(volEnv[14], detElemId, true, TGeoTranslation(-xEnv, yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
d1cd2474	255
a432117a	256	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
a432117a	257	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
298c0899	258	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
298c0899	259	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
d1cd2474	260
	261	// chamber type C (note: same Z than type B)
	262	dpar[0] = (kXMAX/2)*zRatio;
	263	dpar[1] = (kYMAX/2)*zRatio;
	264	xpos = 0.;
	265	ypos = ((kYMAX - kYMIN)/2.) * zRatio;
	266
a432117a	267	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
a432117a	268	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
298c0899	269	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
298c0899	270	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
880610c7	271
d1cd2474	272	// chamber type D, E and F (same size)
	273	// D
	274	yEnvPsave = yEnvP;
	275	yEnvMsave = yEnvM;
	276	yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
	277	yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
	278	dpar[0] = (kXMAX/2.)*zRatio;
	279	dpar[1] = kYMIN*zRatio;
	280
65bcb249	281	detElemId = (10+icount+1)*100+16;
8bd68448	282	GetEnvelopes(10+icount)->AddEnvelope(volEnv[2], detElemId, true, TGeoTranslation(xEnv,-yEnvP,kZp));
65bcb249	283	detElemId = (10+icount+1)*100+2;
8bd68448	284	GetEnvelopes(10+icount)->AddEnvelope(volEnv[6], detElemId, true, TGeoTranslation(xEnv, yEnvP,kZp));
65bcb249	285	detElemId = (10+icount+1)*100+11;
8bd68448	286	GetEnvelopes(10+icount)->AddEnvelope(volEnv[11], detElemId, true, TGeoTranslation(-xEnv,-yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
65bcb249	287	detElemId = (10+icount+1)*100+7;
8bd68448	288	GetEnvelopes(10+icount)->AddEnvelope(volEnv[15], detElemId, true, TGeoTranslation(-xEnv, yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
d1cd2474	289
a432117a	290	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[2],iVolNum++,3, dpar);
	291	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[6],iVolNum++,3, dpar);
	292	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[11],iVolNum++,3, dpar);
	293	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[15],iVolNum++,3, dpar);
d1cd2474	294
	295	// E
	296	yEnvPsave = yEnvP;
	297	yEnvMsave = yEnvM;
	298	yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
	299	yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
	300
65bcb249	301	detElemId = (10+icount+1)*100+15;
8bd68448	302	GetEnvelopes(10+icount)->AddEnvelope(volEnv[1], detElemId, true, TGeoTranslation(xEnv,-yEnvM,kZm));
65bcb249	303	detElemId = (10+icount+1)*100+3;
8bd68448	304	GetEnvelopes(10+icount)->AddEnvelope(volEnv[7], detElemId, true, TGeoTranslation(xEnv, yEnvM,kZm));
65bcb249	305	detElemId = (10+icount+1)*100+12;
8bd68448	306	GetEnvelopes(10+icount)->AddEnvelope(volEnv[10], detElemId, true, TGeoTranslation(-xEnv,-yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
65bcb249	307	detElemId = (10+icount+1)*100+6;
8bd68448	308	GetEnvelopes(10+icount)->AddEnvelope(volEnv[16], detElemId, true, TGeoTranslation(-xEnv, yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
d1cd2474	309
a432117a	310	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[1],iVolNum++,3,dpar);
	311	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[7],iVolNum++,3,dpar);
	312	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[10],iVolNum++,3,dpar);
	313	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[16],iVolNum++,3,dpar);
d1cd2474	314
	315
	316	// F
	317	yEnvPsave = yEnvP;
	318	yEnvMsave = yEnvM;
	319	yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
	320	yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
	321
65bcb249	322	detElemId = (10+icount+1)*100+14;
8bd68448	323	GetEnvelopes(10+icount)->AddEnvelope(volEnv[0], detElemId, true, TGeoTranslation(xEnv,-yEnvP,kZp));
65bcb249	324	detElemId = (10+icount+1)*100+4;
8bd68448	325	GetEnvelopes(10+icount)->AddEnvelope(volEnv[8], detElemId, true, TGeoTranslation(xEnv, yEnvP,kZp));
65bcb249	326	detElemId = (10+icount+1)*100+13;
8bd68448	327	GetEnvelopes(10+icount)->AddEnvelope(volEnv[9], detElemId, true, TGeoTranslation(-xEnv,-yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
65bcb249	328	detElemId = (10+icount+1)*100+5;
8bd68448	329	GetEnvelopes(10+icount)->AddEnvelope(volEnv[17], detElemId, true, TGeoTranslation(-xEnv, yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
528abf6f	330
a432117a	331	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[0],iVolNum++,3,dpar);
	332	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[8],iVolNum++,3,dpar);
	333	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[9],iVolNum++,3,dpar);
	334	GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[17],iVolNum++,3,dpar);
d1cd2474	335
	336	} // end loop on detection planes
	337	} // end loop on stations
	338	}
	339
	340	//______________________________________________________________________________
	341	void AliMUONTriggerGeometryBuilder::SetTransformations()
	342	{
	343	// Defines the transformations for the trigger chambers.
	344	// ---
	345	Double_t zpos1, zpos2;
	346	AliMUONChamber iChamber1, iChamber2;
	347
e118b27e	348	iChamber1 = &fMUON->Chamber(10);
65bcb249	349	zpos1= iChamber1->Z();
d1cd2474	350	iChamber1->GetGeometry()
	351	->SetTranslation(TGeoTranslation(0., 0., zpos1));
	352
e118b27e	353	iChamber2 = &fMUON->Chamber(11);
65bcb249	354	zpos2 = iChamber2->Z();
d1cd2474	355	iChamber2->GetGeometry()
	356	->SetTranslation(TGeoTranslation(0., 0., zpos2));
	357
e118b27e	358	iChamber1 = &fMUON->Chamber(12);
65bcb249	359	zpos1 = iChamber1->Z();
d1cd2474	360	iChamber1->GetGeometry()
d1cd2474	361	->SetTranslation(TGeoTranslation(0., 0., zpos1));
db51f44c	362
e118b27e	363	iChamber2 = &fMUON->Chamber(13);
65bcb249	364	zpos2 = iChamber2->Z();
d1cd2474	365	iChamber2->GetGeometry()
d1cd2474	366	->SetTranslation(TGeoTranslation(0., 0., zpos2));
db51f44c	367
d1cd2474	368	}
	369
	370	//______________________________________________________________________________
	371	void AliMUONTriggerGeometryBuilder::SetSensitiveVolumes()
	372	{
	373	// Defines the sensitive volumes for trigger station chambers.
	374	// ---
	375
eb571c25	376	GetGeometry(10)->SetSensitiveVolume("S11G");
	377	GetGeometry(11)->SetSensitiveVolume("S12G");
	378	GetGeometry(12)->SetSensitiveVolume("S13G");
	379	GetGeometry(13)->SetSensitiveVolume("S14G");
d1cd2474	380	}
d1cd2474	381