[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 "AliMUONTriggerGeometryBuilder.h"
#include "AliMUON.h"
#include "AliMUONChamber.h"
#include "AliMUONChamberGeometry.h"

ClassImp(AliMUONTriggerGeometryBuilder)

//______________________________________________________________________________
AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(AliMUON* muon)
 : AliMUONVGeometryBuilder(&muon->Chamber(10), &muon->Chamber(11),&muon->Chamber(12),&muon->Chamber(13)),
   fMUON(muon)
{
// Standard constructor

}

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


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

  Fatal("Copy constructor", 
        "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;

  Fatal("operator=", 
        "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
    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=272.; 
// kXMAX will become 255. in real life. segmentation to be updated accordingly
// (see fig.2-4 & 2-5 of Local Trigger Board PRR)
    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;
    iChamber1 = GetChamber(10);
    Float_t zpos1=-iChamber1->Z(); 
    
// 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 = GetChamber(10+icount);
	    Float_t zpos = - iChamber->Z();	     
	    
// 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()->AddEnvelope(volFlange, 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%dL%d",icount,iline);
		    else
			sprintf(volEnv[i],"S%dR%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,"SG%dA",icount+1);
	    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;

	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[4], true, TGeoTranslation(xEnv,yEnvM,kZm));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[13], true, TGeoTranslation(-xEnv,yEnvP,kZp));

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

	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[3], true, TGeoTranslation( xEnv,-yEnvP,kZp));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[5], true, TGeoTranslation( xEnv, yEnvP,kZp));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[12], true, TGeoTranslation(-xEnv,-yEnvM,kZm));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[14], true, TGeoTranslation(-xEnv, yEnvM,kZm));

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

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

	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[2], true, TGeoTranslation(xEnv, yEnvM,kZm));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[6], true, TGeoTranslation(-xEnv, yEnvP,kZp));	    
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[11], true, TGeoTranslation(xEnv,-yEnvM,kZm));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[15], true, TGeoTranslation(-xEnv,-yEnvP,kZp));

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

	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[1], true, TGeoTranslation(xEnv, yEnvP,kZp));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[7], true, TGeoTranslation(-xEnv, yEnvM,kZm));	    
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[10], true, TGeoTranslation(xEnv,-yEnvP,kZp));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[16], true, TGeoTranslation(-xEnv,-yEnvM,kZm));

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

	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[0], true, TGeoTranslation(xEnv, yEnvM,kZm));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[8], true, TGeoTranslation(-xEnv, yEnvP,kZp));	    
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[9], true, TGeoTranslation(xEnv,-yEnvM,kZm));
	    GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[17], true, TGeoTranslation(-xEnv,-yEnvP,kZp));

	    GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[0],iVolNum++,3,dpar);
	    GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[8],iVolNum++,3,dpar);
	    GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[9],iVolNum++,3,dpar);
	    GetChamber(10+icount)->GetGeometry()->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 = GetChamber(10);
    zpos1= - iChamber1->Z(); 
    iChamber1->GetGeometry()
	->SetTranslation(TGeoTranslation(0., 0., zpos1));
    
    iChamber2 = GetChamber(11);
    zpos2 = - iChamber2->Z(); 
    iChamber2->GetGeometry()
	->SetTranslation(TGeoTranslation(0., 0., zpos2));

    iChamber1 = GetChamber(12);
    zpos1 = - iChamber1->Z(); 
    iChamber1->GetGeometry()
	->SetTranslation(TGeoTranslation(0., 0., zpos1));
    
    iChamber2 = GetChamber(13);
    zpos2 = - iChamber2->Z(); 
    iChamber2->GetGeometry()
	->SetTranslation(TGeoTranslation(0., 0., zpos2));
}

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

  GetChamber(10)->GetGeometry()->SetSensitiveVolume("SG1A");
  GetChamber(11)->GetGeometry()->SetSensitiveVolume("SG2A");
  GetChamber(12)->GetGeometry()->SetSensitiveVolume("SG3A");
  GetChamber(13)->GetGeometry()->SetSensitiveVolume("SG4A");
}
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
	27	#include "AliMUONTriggerGeometryBuilder.h"
	28	#include "AliMUON.h"
	29	#include "AliMUONChamber.h"
	30	#include "AliMUONChamberGeometry.h"
	31
	32	ClassImp(AliMUONTriggerGeometryBuilder)
	33
	34	//______________________________________________________________________________
	35	AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(AliMUON* muon)
	36	: AliMUONVGeometryBuilder(&muon->Chamber(10), &muon->Chamber(11),&muon->Chamber(12),&muon->Chamber(13)),
	37	fMUON(muon)
	38	{
	39	// Standard constructor
	40
	41	}
	42
	43	//______________________________________________________________________________
	44	AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder()
	45	: AliMUONVGeometryBuilder(),
	46	fMUON(0)
	47	{
	48	// Default constructor
	49	}
	50
	51
	52	//______________________________________________________________________________
	53	AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(const AliMUONTriggerGeometryBuilder& rhs)
	54	: AliMUONVGeometryBuilder(rhs)
	55	{
30178c30	56	// Protected copy constructor
30178c30	57
d1cd2474	58	Fatal("Copy constructor",
	59	"Copy constructor is not implemented.");
	60	}
	61
	62	//______________________________________________________________________________
	63	AliMUONTriggerGeometryBuilder::~AliMUONTriggerGeometryBuilder() {
	64	//
	65	}
	66
	67	//______________________________________________________________________________
	68	AliMUONTriggerGeometryBuilder&
	69	AliMUONTriggerGeometryBuilder::operator = (const AliMUONTriggerGeometryBuilder& rhs)
	70	{
30178c30	71	// Protected assignement operator
30178c30	72
d1cd2474	73	// check assignement to self
	74	if (this == &rhs) return *this;
	75
	76	Fatal("operator=",
	77	"Assignment operator is not implemented.");
	78
	79	return *this;
	80	}
	81
	82	//
	83	// public methods
	84	//
	85
	86	//______________________________________________________________________________
	87	void AliMUONTriggerGeometryBuilder::CreateGeometry()
	88	{
	89	// From AliMUONv1::CreateGeometry()
	90
	91	/*
	92	zpos1 and zpos2 are the middle of the first and second
	93	planes of station 1 (+1m for second station):
	94	zpos1=(zpos1m+zpos1p)/2=(15999+16071)/2=16035 mm, thick/2=40 mm
	95	zpos2=(zpos2m+zpos2p)/2=(16169+16241)/2=16205 mm, thick/2=40 mm
	96	zposxm and zposxp= middles of gaz gaps within a detection plane
	97	rem: the total thickness accounts for 1 mm of al on both
	98	side of the RPCs (see zpos1 and zpos2)
	99	*/
	100
	101	Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
	102	Int_t idAir= idtmed[1100]; // medium 1
	103	Int_t idAlu1=idtmed[1103]; // medium 4
	104	Float_t tpar[3];
	105	Double_t dpar[3];
	106
	107	// vertical gap between right and left chambers (kDXZERO*2=4cm)
	108	const Float_t kDXZERO=2.;
	109	// main distances for chamber definition in first plane/first station
	110	const Float_t kXMIN=34.;
	111	const Float_t kXMED=51.;
	112	const Float_t kXMAX=272.;
	113	// kXMAX will become 255. in real life. segmentation to be updated accordingly
	114	// (see fig.2-4 & 2-5 of Local Trigger Board PRR)
	115	const Float_t kYMIN=34.;
	116	const Float_t kYMAX=51.;
	117	// inner/outer radius of flange between beam shield. and chambers (1/station)
	118	const Float_t kRMIN[2]={50.,50.};
	119	const Float_t kRMAX[2]={64.,68.};
	120	// z position of the middle of the gas gap in mother vol
	121	const Float_t kZm=-3.6;
	122	const Float_t kZp=+3.6;
	123
	124	AliMUONChamber iChamber, iChamber1;
	125	iChamber1 = GetChamber(10);
	126	Float_t zpos1=-iChamber1->Z();
	127
	128	// ratio of zpos1m/zpos1p and inverse for first plane
	129	Float_t zmp=(zpos1-3.6)/(zpos1+3.6);
	130	Float_t zpm=1./zmp;
	131
	132	Int_t icount=0; // chamber counter (0 1 2 3)
	133
	134	for (Int_t istation=0; istation<2; istation++) { // loop on stations
	135	for (Int_t iplane=0; iplane<2; iplane++) { // loop on detection planes
	136
137	Int_t iVolNum=1; // counter Volume Number
138	icount = Int_t(iplane*TMath::Power(2,0))+
139	Int_t(istation*TMath::Power(2,1));
140
141	iChamber = GetChamber(10+icount);
142	Float_t zpos = - iChamber->Z();
143
144	// Flange between beam shielding and RPC
145	tpar[0]= kRMIN[istation];
146	tpar[1]= kRMAX[istation];
147	tpar[2]= 4.0;
148	char volFlange[5];
149	sprintf(volFlange,"SF%dA",icount+1);
150	gMC->Gsvolu(volFlange,"TUBE",idAlu1,tpar,3); // Al
151	// changed by ivana
152	//gMC->Gspos(volFlange,1,"ALIC",0.,0.,zpos,0,"MANY");
6b82c1f0	153	iChamber->GetGeometry()->AddEnvelope(volFlange, false, "MANY");
d1cd2474	154
	155	// scaling factor
	156	Float_t zRatio = zpos / zpos1;
	157
	158	// envelopes (same size except line 5, all virtual)
	159	char volEnv[18][5];
	160	tpar[1] = kYMIN * zRatio;
	161	tpar[2] = 0.4;
	162	Int_t i=0; // counter
	163	for (Int_t icolumn=0; icolumn<2; icolumn++) {
	164	for (Int_t iline=1; iline<10; iline++){
	165	tpar[0] = (kXMAX/2.) * zRatio;
	166	if (iline==5) tpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
	167	if (icolumn==0)
	168	sprintf(volEnv[i],"S%dL%d",icount,iline);
	169	else
	170	sprintf(volEnv[i],"S%dR%d",icount,iline);
	171	gMC->Gsvolu(volEnv[i],"BOX",idAir,tpar,0);
	172	i++;
	173	}
	174	}
	175
	176	// chamber prototype
	177	tpar[0]= 0.;
	178	tpar[1]= 0.;
	179	tpar[2]= 0.;
	180	char volAlu[5]; // Alu
	181	char volBak[5]; // Bakelite
	182	char volGaz[5]; // Gas streamer
	183	sprintf(volAlu,"SC%dA",icount+1);
	184	sprintf(volBak,"SB%dA",icount+1);
	185	sprintf(volGaz,"SG%dA",icount+1);
	186	gMC->Gsvolu(volAlu,"BOX",idAlu1,tpar,0); // Al
	187	gMC->Gsvolu(volBak,"BOX",idtmed[1107],tpar,0); // Bakelite
	188	gMC->Gsvolu(volGaz,"BOX",idtmed[1106],tpar,0); // Gas streamer
	189	tpar[0] = -1.;
	190	tpar[1] = -1.;
	191	tpar[2] = 0.1;
	192	gMC->Gsposp(volGaz,1,volBak,0.,0.,0.,0,"ONLY",tpar,3);
	193	tpar[2] = 0.3;
	194	gMC->Gsposp(volBak,1,volAlu,0.,0.,0.,0,"ONLY",tpar,3);
	195
	196	// chamber type A
	197	Float_t xEnv = (kDXZERO+kXMED+(kXMAX-kXMED)/2.)*zRatio;
	198	Float_t yEnvM = 0.; // y low position of envelope in chamber
	199	Float_t yEnvP = 0.; // y up position of envelope in chamber
	200	Float_t yEnvPsave = 0.; // tmp data
	201	Float_t yEnvMsave = 0.; // tmp data
	202	Float_t xpos = 0.; // x position of RPC in envelope
	203	Float_t ypos = 0.; // y position of RPC in envelope
	204	dpar[2] = 0.4;
	205	dpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
	206	dpar[1] = kYMIN * zRatio;
	207
	208	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[4], true, TGeoTranslation(xEnv,yEnvM,kZm));
	209	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[13], true, TGeoTranslation(-xEnv,yEnvP,kZp));
	210
	211	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[4],iVolNum++,3, dpar);
	212	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[13],iVolNum++,3, dpar);
	213
	214	// chamber type B (plus envelope chambers B & C)
	215	xEnv = (kDXZERO+kXMAX/2.)*zRatio;
	216	yEnvPsave = yEnvP;
	217	yEnvMsave = yEnvM;
218	yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
219	yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
220	dpar[0] = ((kXMAX-kXMIN)/2.) * zRatio;
221	dpar[1] = ((kYMAX-kYMIN)/2.) * zRatio;
222	xpos = kXMIN/2. * zRatio;
223	ypos = (kYMIN - kYMIN/4.) * zRatio;
224
225	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[3], true, TGeoTranslation( xEnv,-yEnvP,kZp));
226	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[5], true, TGeoTranslation( xEnv, yEnvP,kZp));
227	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[12], true, TGeoTranslation(-xEnv,-yEnvM,kZm));
228	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[14], true, TGeoTranslation(-xEnv, yEnvM,kZm));
229
230	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
231	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
232	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(-xpos, ypos,0.),3,dpar);
233	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(-xpos,-ypos,0.),3,dpar);
234
235	// chamber type C (note: same Z than type B)
236	dpar[0] = (kXMAX/2)*zRatio;
237	dpar[1] = (kYMAX/2)*zRatio;
238	xpos = 0.;
239	ypos = ((kYMAX - kYMIN)/2.) * zRatio;
240
241	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
242	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
243	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(-xpos,-ypos,0.),3,dpar);
244	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(-xpos, ypos,0.),3,dpar);
245
246	// chamber type D, E and F (same size)
247	// D
248	yEnvPsave = yEnvP;
249	yEnvMsave = yEnvM;
250	yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
251	yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
252	dpar[0] = (kXMAX/2.)*zRatio;
253	dpar[1] = kYMIN*zRatio;
254
255	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[2], true, TGeoTranslation(xEnv, yEnvM,kZm));
256	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[6], true, TGeoTranslation(-xEnv, yEnvP,kZp));
257	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[11], true, TGeoTranslation(xEnv,-yEnvM,kZm));
258	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[15], true, TGeoTranslation(-xEnv,-yEnvP,kZp));
259
260	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[2],iVolNum++,3, dpar);
261	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[6],iVolNum++,3, dpar);
262	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[11],iVolNum++,3, dpar);
263	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[15],iVolNum++,3, dpar);
264
265	// E
266	yEnvPsave = yEnvP;
267	yEnvMsave = yEnvM;
268	yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
269	yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
270
271	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[1], true, TGeoTranslation(xEnv, yEnvP,kZp));
272	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[7], true, TGeoTranslation(-xEnv, yEnvM,kZm));
273	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[10], true, TGeoTranslation(xEnv,-yEnvP,kZp));
274	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[16], true, TGeoTranslation(-xEnv,-yEnvM,kZm));
275
276	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[1],iVolNum++,3,dpar);
277	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[7],iVolNum++,3,dpar);
278	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[10],iVolNum++,3,dpar);
279	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[16],iVolNum++,3,dpar);
280
281
282	// F
283	yEnvPsave = yEnvP;
284	yEnvMsave = yEnvM;
285	yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
286	yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
287
288	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[0], true, TGeoTranslation(xEnv, yEnvM,kZm));
289	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[8], true, TGeoTranslation(-xEnv, yEnvP,kZp));
290	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[9], true, TGeoTranslation(xEnv,-yEnvM,kZm));
291	GetChamber(10+icount)->GetGeometry()->AddEnvelope(volEnv[17], true, TGeoTranslation(-xEnv,-yEnvP,kZp));
292
293	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[0],iVolNum++,3,dpar);
294	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[8],iVolNum++,3,dpar);
295	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[9],iVolNum++,3,dpar);
296	GetChamber(10+icount)->GetGeometry()->AddEnvelopeConstituentParam(volAlu,volEnv[17],iVolNum++,3,dpar);
297
298	} // end loop on detection planes
299	} // end loop on stations
300	}
301
302	//______________________________________________________________________________
303	void AliMUONTriggerGeometryBuilder::SetTransformations()
304	{
305	// Defines the transformations for the trigger chambers.
306	// ---
307	Double_t zpos1, zpos2;
308	AliMUONChamber iChamber1, iChamber2;
309
310	iChamber1 = GetChamber(10);
311	zpos1= - iChamber1->Z();
312	iChamber1->GetGeometry()
313	->SetTranslation(TGeoTranslation(0., 0., zpos1));
314
315	iChamber2 = GetChamber(11);
316	zpos2 = - iChamber2->Z();
317	iChamber2->GetGeometry()
318	->SetTranslation(TGeoTranslation(0., 0., zpos2));
319
320	iChamber1 = GetChamber(12);
321	zpos1 = - iChamber1->Z();
322	iChamber1->GetGeometry()
323	->SetTranslation(TGeoTranslation(0., 0., zpos1));
324
325	iChamber2 = GetChamber(13);
326	zpos2 = - iChamber2->Z();
327	iChamber2->GetGeometry()
328	->SetTranslation(TGeoTranslation(0., 0., zpos2));
329	}
330
331	//______________________________________________________________________________
332	void AliMUONTriggerGeometryBuilder::SetSensitiveVolumes()
333	{
334	// Defines the sensitive volumes for trigger station chambers.
335	// ---
336
337	GetChamber(10)->GetGeometry()->SetSensitiveVolume("SG1A");
338	GetChamber(11)->GetGeometry()->SetSensitiveVolume("SG2A");
339	GetChamber(12)->GetGeometry()->SetSensitiveVolume("SG3A");
340	GetChamber(13)->GetGeometry()->SetSensitiveVolume("SG4A");
341	}
342