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

/*
$Log$
Revision 1.4  2000/10/22 16:55:43  morsch
Use only x-symmetry in global to local transformations and delegation.

Revision 1.3  2000/10/18 11:42:06  morsch
- AliMUONRawCluster contains z-position.
- Some clean-up of useless print statements during initialisations.

Revision 1.2  2000/10/09 14:06:18  morsch
Some type cast problems of type  (TMath::Sign((Float_t)1.,x)) corrected (P.H.)

Revision 1.1  2000/10/06 09:00:47  morsch
Segmentation class for chambers built out of slats.

*/

#include "AliMUONSegmentationSlat.h"
#include "AliMUONSegmentationSlatModule.h"
#include "AliMUON.h"
#include "AliMUONChamber.h"
#include "TArrayI.h"
#include "TObjArray.h"
#include "AliRun.h"
#include <TMath.h>
#include <iostream.h>

//___________________________________________
ClassImp(AliMUONSegmentationSlat)

AliMUONSegmentationSlat::AliMUONSegmentationSlat() 
{
// Default constructor
    fSlats=0;            
    fNDiv = new TArrayI(4);   
}

void AliMUONSegmentationSlat::SetPadSize(Float_t p1, Float_t p2)
{
//  Sets the pad (strip) size 
//  
    fDpx=p1;
    fDpy=p2;
}

Float_t AliMUONSegmentationSlat::GetAnod(Float_t xhit) const
{
// Returns for a hit position xhit the position of the nearest anode wire    
    Float_t wire= (xhit>0)? Int_t(xhit/fWireD)+0.5:Int_t(xhit/fWireD)-0.5;
    return fWireD*wire;
}

Float_t AliMUONSegmentationSlat::Dpx(Int_t isec) const
{
//
// Returns x-pad size for given sector isec
// isec = 100*islat+iregion
//
    Int_t islat, iregion;
    islat    = isec/100;
    iregion  = isec%100;
    return Slat(islat)->Dpx(iregion);
}

Float_t AliMUONSegmentationSlat::Dpy(Int_t isec) const
{
//
// Returns y-pad (strip)  size for given sector isec
   return fDpy;
}

void AliMUONSegmentationSlat::SetPadDivision(Int_t ndiv[4])
{
//
// Defines the pad size perp. to the anode wire (y) for different sectors. 
// Pad sizes are defined as integral fractions ndiv of a basis pad size
// fDpx
// 
    for (Int_t i=0; i<4; i++) {
	(*fNDiv)[i]=ndiv[i];
    }
}

void AliMUONSegmentationSlat::GlobalToLocal(
    Float_t x, Float_t y, Float_t z, Int_t &islat, Float_t &xlocal, Float_t &ylocal)
{
//
// Perform local to global transformation for space coordinates
//
    Float_t zlocal;
    Int_t i;
    Int_t index=-1;
// Transform According to slat plane z-position: negative side is shifted down 
//                                                 positive side is shifted up
// by half the overlap
    zlocal = z-fChamber->Z();
//  Set the signs for the symmetry transformation and transform to first quadrant
    SetSymmetry(x);
    Float_t xabs=TMath::Abs(x);

    Int_t ifirst = (zlocal < Float_t(0))? 0:1;
//
// Find slat number                      
    for (i=ifirst; i<fNSlats; i+=2) {
	index=i;
	if ((y >= fYPosition[i]) && (y < fYPosition[i]+fSlatY)) break;
    }
    
//
// Transform to local coordinate system

    
    ylocal = y   -fYPosition[index];
    xlocal = xabs-fXPosition[index];
    islat  = index;
    if (i >= fNSlats) {islat = -1; x=-1; y = -1;}
}

void AliMUONSegmentationSlat::GlobalToLocal(
    Int_t ix, Int_t iy, Int_t &islat, Int_t &ixlocal, Int_t &iylocal)
{
//
// Perform global to local transformation for pad coordinates
//
    Int_t iytemp = iy;
    Int_t index  =  0;
    
    iylocal = iytemp;

//
// Find slat number (index) and iylocal  
    for (Int_t i=0; i<fNSlats; i++) {
	iytemp-=Slat(i)->Npy();
	
	
	if (iytemp <= 0) break;
	iylocal = iytemp;
	index=i+1;
    }

    ixlocal=TMath::Abs(ix);
    islat=index;
}

void AliMUONSegmentationSlat::
LocalToGlobal(Int_t islat, Float_t  xlocal, Float_t  ylocal, Float_t  &x, Float_t  &y, Float_t &z)
{
// Transform from local to global space coordinates
//
// upper plane (y>0) even slat number is shifted down
// upper plane (y>0)  odd slat number is shifted up 
// lower plane (y<0) even slat number is shifted up
// lower plane (y<0)  odd slat number is shifted down
//

    x = (xlocal+fXPosition[islat])*fSym;
    y=(ylocal+fYPosition[islat]);

    z = (TMath::Even(islat)) ? -fDz : fDz ; 
    z+=fChamber->Z();
}


void AliMUONSegmentationSlat::LocalToGlobal(
    Int_t islat, Int_t ixlocal, Int_t iylocal, Int_t &ix, Int_t &iy)
{
// Transform from local to global pad coordinates
//
    Int_t i;
    iy=iylocal;
    
//
// Find slat number (index) and iylocal  
    for (i=0; i<islat; i++) iy+=Slat(islat)->Npy();

    ix=ixlocal*fSym;
    iy=iy;
}


void AliMUONSegmentationSlat::SetSymmetry(Int_t   ix)
{
// Set set signs for symmetry transformation
    fSym=TMath::Sign(1,ix);
}

void AliMUONSegmentationSlat::SetSymmetry(Float_t  x)
{
// Set set signs for symmetry transformation
    fSym=Int_t (TMath::Sign((Float_t)1.,x));
}

void AliMUONSegmentationSlat::
GetPadI(Float_t x, Float_t y, Float_t z, Int_t &ix, Int_t &iy)
{
// Returns pad coordinates for given set of space coordinates

    Int_t islat, i;
    Float_t xlocal, ylocal;
    
    GlobalToLocal(x,y,z,islat,xlocal,ylocal);
    if (islat == -1) {
	ix=0; iy=0; return;
    }
    
    Slat(islat)->GetPadI(xlocal, ylocal, ix, iy);
    for (i=0; i<islat; i++) iy+=Slat(islat)->Npy();

    ix=ix*Int_t(TMath::Sign((Float_t)1.,x));    
}


void AliMUONSegmentationSlat::
GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y, Float_t &z)
{
//  Returns real coordinates (x,y) for given pad coordinates (ix,iy)
//
    Int_t islat, ixlocal, iylocal;
//
// Delegation of transforamtion to slat
    GlobalToLocal(ix,iy,islat,ixlocal,iylocal);
    Slat(islat)->GetPadC(ixlocal, iylocal, x, y);
// Slat offset
    x+=fXPosition[islat];
    y+=fYPosition[islat];    

// Symmetry transformation of half planes
    x=x*TMath::Sign(1,ix);

// z-position
    z = (TMath::Even(islat)) ? -fDz : fDz ; 
    z += fChamber->Z();
}

Int_t AliMUONSegmentationSlat::ISector()
{
// Returns current sector during tracking
    Int_t iregion;
    
    iregion =  fCurrentSlat->ISector();
    return 100*fSlatIndex+iregion;
}

Int_t AliMUONSegmentationSlat::Sector(Int_t ix, Int_t iy)
{
    Int_t ixlocal, iylocal, iregion, islat;

    GlobalToLocal(ix,iy,islat,ixlocal,iylocal);
    
    iregion =  Slat(islat)->Sector(ixlocal, iylocal);
    return 100*islat+iregion;
}


void AliMUONSegmentationSlat::SetPad(Int_t ix, Int_t iy)
{
    //
    // Sets virtual pad coordinates, needed for evaluating pad response 
    // outside the tracking program
    Int_t islat, ixlocal, iylocal;

    SetSymmetry(ix);
    
    GlobalToLocal(ix,iy,islat,ixlocal,iylocal);
    fSlatIndex=islat;
    fCurrentSlat=Slat(islat);
    fCurrentSlat->SetPad(ixlocal, iylocal);
}

void  AliMUONSegmentationSlat::SetHit(Float_t xhit, Float_t yhit, Float_t zhit)
{   //
    // Sets current hit coordinates

    Float_t xlocal, ylocal;
    Int_t islat;

    
    GlobalToLocal(xhit,yhit,zhit,islat,xlocal,ylocal);
    fSlatIndex=islat;
    if (islat < 0) printf("\n SetHit: %d", islat);
    
    fCurrentSlat=Slat(islat);
    fCurrentSlat->SetHit(xlocal, ylocal);
}


void AliMUONSegmentationSlat::
FirstPad(Float_t xhit, Float_t yhit, Float_t zhit, Float_t dx, Float_t dy)
{
// Initialises iteration over pads for charge distribution algorithm
//


    Int_t islat;
    Float_t xlocal, ylocal;
    GlobalToLocal(xhit, yhit, zhit, islat, xlocal, ylocal);
    fSlatIndex=islat;
    fCurrentSlat=Slat(islat);
    fCurrentSlat->FirstPad(xlocal, ylocal, dx, dy);

}


void AliMUONSegmentationSlat::NextPad()
{
// Stepper for the iteration over pads
//
    fCurrentSlat->NextPad();
}


Int_t AliMUONSegmentationSlat::MorePads()
// Stopping condition for the iterator over pads
//
// Are there more pads in the integration region
{ 
    return fCurrentSlat->MorePads();
}

void AliMUONSegmentationSlat::
IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& y1, Float_t& y2)
{
//  Returns integration limits for current pad
//
    
    fCurrentSlat->IntegrationLimits(x1, x2, y1, y2);

}

void AliMUONSegmentationSlat::
Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10])
{
// Returns list of neighbours of pad with coordinates iX, iY

    Int_t i, xListLocal[10], yListLocal[10], iXlocal, iYlocal, islat;
    
    SetSymmetry(iX);

    GlobalToLocal(iX, iY, islat, iXlocal, iYlocal);
 
    Slat(islat)->Neighbours(iXlocal, iYlocal, Nlist, xListLocal, yListLocal);
    
    for (i=0; i<*Nlist; i++) LocalToGlobal(islat, xListLocal[i], yListLocal[i], Xlist[i], Ylist[i]);

}


Int_t  AliMUONSegmentationSlat::Ix()
{
// Return current pad coordinate ix during stepping
    Int_t ixl,iyl,ix,iy;
    ixl=fCurrentSlat->Ix();
    iyl=fCurrentSlat->Iy();
    
    LocalToGlobal(fSlatIndex, ixl, iyl, ix, iy);
    Int_t ixc, iyc, isc;
    Float_t xc, yc;
    GlobalToLocal(ix, iy, isc, ixc, iyc);
    Slat(isc)->GetPadC(ixc,iyc,xc,yc);
    return ix;
}


Int_t  AliMUONSegmentationSlat::Iy()
{
// Return current pad coordinate iy during stepping
    Int_t ixl,iyl,ix,iy;
    ixl=fCurrentSlat->Ix();
    iyl=fCurrentSlat->Iy();
    LocalToGlobal(fSlatIndex, ixl, iyl, ix, iy);
    return iy;
}


   // Signal Generation Condition during Stepping
Int_t AliMUONSegmentationSlat::SigGenCond(Float_t x, Float_t y, Float_t z)
{ 
//
//  True if signal generation condition fullfilled
    Float_t xlocal, ylocal;
    Int_t islat;
    GlobalToLocal(x, y, z, islat, xlocal, ylocal);
    return Slat(islat)->SigGenCond(xlocal, ylocal, z);
}

// Initialise signal generation at coord (x,y,z)
void  AliMUONSegmentationSlat::SigGenInit(Float_t x, Float_t y, Float_t z)
{
// Initialize the signal generation condition
//
    Float_t xlocal, ylocal;
    Int_t islat;

    GlobalToLocal(x, y, z, islat, xlocal, ylocal);
    Slat(islat)->SigGenInit(xlocal, ylocal, z);
}


void AliMUONSegmentationSlat::Init(Int_t chamber)
{
//    
// Initialize slat modules of quadrant +/+    
// The other three quadrants are handled through symmetry transformations
//
    printf("\n Initialise Segmentation Slat \n");
//

//    Initialize Slat modules
    Int_t islat, i;
    Int_t ndiv[4];
// Pad division
    for (i=0; i<4; i++) ndiv[i]=(*fNDiv)[i];
//
    fDz=0.813;
// Slat height    
    fSlatY=40.;
    for (i=0; i<15; i++) fSlatX[i]=0.;
    
// Initialize array of slats 
    fSlats  = new TObjArray(fNSlats);
// Maximum number of strips (pads) in x and y
    fNpy=0;   
    fNpx=0;
// for each slat in the quadrant (+,+)    
    for (islat=0; islat<fNSlats; islat++) {
	(*fSlats)[islat] = CreateSlatModule();

	AliMUONSegmentationSlatModule *slat =  Slat(islat);
	// Configure Slat
	slat->SetId(islat);
	
// Foward pad size
	slat->SetPadSize(fDpx, fDpy);
// Forward wire pitch
	slat->SetDAnod(fWireD);
// Foward segmentation 
	slat->SetPadDivision(ndiv);
	slat->SetPcbBoards(fPcb[islat]);
// Initialize slat module
	slat->Init(chamber);
// y-position of slat module relative to the first (closest to the beam)
	fYPosition[islat]= fYPosOrigin+islat*(fSlatY-2.*fShift);
//
	fNpy+=slat->Npy();
	if (slat->Npx() > fNpx) fNpx=slat->Npx();
	Int_t isec;
	for (isec=0; isec< 4; isec++)
	{
	    fSlatX[islat]+=40.*fPcb[islat][isec];
	}
	
    }
// Set parent chamber number
    AliMUON *pMUON  = (AliMUON *) gAlice->GetModule("MUON");
    fChamber=&(pMUON->Chamber(chamber));
}


void AliMUONSegmentationSlat::SetNPCBperSector(Int_t *npcb)
{ 
    //  PCB distribution for station 4 (6 rows with 1+3 segmentation regions)
    for (Int_t islat=0; islat<fNSlats; islat++){ 
	fPcb[islat][0] = *(npcb + 4 * islat);
	fPcb[islat][1] = *(npcb + 4 * islat + 1);
	fPcb[islat][2] = *(npcb + 4 * islat + 2);
	fPcb[islat][3] = *(npcb + 4 * islat + 3);
    }
}


void  AliMUONSegmentationSlat::SetSlatXPositions(Float_t *xpos)
{
// Set x-positions of Slats
    for (Int_t islat=0; islat<fNSlats; islat++) fXPosition[islat]=xpos[islat];
}

AliMUONSegmentationSlatModule*  AliMUONSegmentationSlat::Slat(Int_t index) const
{ return ((AliMUONSegmentationSlatModule*) (*fSlats)[index]);}


AliMUONSegmentationSlatModule* AliMUONSegmentationSlat::
CreateSlatModule()
{
    // Factory method for slat module
    return new AliMUONSegmentationSlatModule();
}
Commit	Line	Data
5de7d27f	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
	16	/*
	17	$Log$
bf61d9e2	18	Revision 1.4 2000/10/22 16:55:43 morsch
	19	Use only x-symmetry in global to local transformations and delegation.
	20
2b202c2e	21	Revision 1.3 2000/10/18 11:42:06 morsch
	22	- AliMUONRawCluster contains z-position.
	23	- Some clean-up of useless print statements during initialisations.
	24
3e1872ed	25	Revision 1.2 2000/10/09 14:06:18 morsch
	26	Some type cast problems of type (TMath::Sign((Float_t)1.,x)) corrected (P.H.)
	27
deba22dc	28	Revision 1.1 2000/10/06 09:00:47 morsch
	29	Segmentation class for chambers built out of slats.
	30
5de7d27f	31	*/
	32
	33	#include "AliMUONSegmentationSlat.h"
	34	#include "AliMUONSegmentationSlatModule.h"
	35	#include "AliMUON.h"
	36	#include "AliMUONChamber.h"
	37	#include "TArrayI.h"
	38	#include "TObjArray.h"
	39	#include "AliRun.h"
	40	#include <TMath.h>
	41	#include <iostream.h>
	42
	43	//___________________________________________
	44	ClassImp(AliMUONSegmentationSlat)
	45
	46	AliMUONSegmentationSlat::AliMUONSegmentationSlat()
	47	{
	48	// Default constructor
	49	fSlats=0;
	50	fNDiv = new TArrayI(4);
	51	}
	52
	53	void AliMUONSegmentationSlat::SetPadSize(Float_t p1, Float_t p2)
	54	{
	55	// Sets the pad (strip) size
	56	//
	57	fDpx=p1;
	58	fDpy=p2;
	59	}
	60
	61	Float_t AliMUONSegmentationSlat::GetAnod(Float_t xhit) const
	62	{
	63	// Returns for a hit position xhit the position of the nearest anode wire
	64	Float_t wire= (xhit>0)? Int_t(xhit/fWireD)+0.5:Int_t(xhit/fWireD)-0.5;
	65	return fWireD*wire;
	66	}
	67
	68	Float_t AliMUONSegmentationSlat::Dpx(Int_t isec) const
	69	{
	70	//
	71	// Returns x-pad size for given sector isec
	72	// isec = 100*islat+iregion
	73	//
	74	Int_t islat, iregion;
	75	islat = isec/100;
	76	iregion = isec%100;
	77	return Slat(islat)->Dpx(iregion);
	78	}
	79
	80	Float_t AliMUONSegmentationSlat::Dpy(Int_t isec) const
	81	{
	82	//
	83	// Returns y-pad (strip) size for given sector isec
	84	return fDpy;
	85	}
	86
	87	void AliMUONSegmentationSlat::SetPadDivision(Int_t ndiv[4])
	88	{
	89	//
	90	// Defines the pad size perp. to the anode wire (y) for different sectors.
	91	// Pad sizes are defined as integral fractions ndiv of a basis pad size
	92	// fDpx
	93	//
	94	for (Int_t i=0; i<4; i++) {
95	(*fNDiv)[i]=ndiv[i];
96	}
97	}
98
99	void AliMUONSegmentationSlat::GlobalToLocal(
100	Float_t x, Float_t y, Float_t z, Int_t &islat, Float_t &xlocal, Float_t &ylocal)
101	{
102	//
103	// Perform local to global transformation for space coordinates
104	//
105	Float_t zlocal;
106	Int_t i;
107	Int_t index=-1;
108	// Transform According to slat plane z-position: negative side is shifted down
109	// positive side is shifted up
110	// by half the overlap
111	zlocal = z-fChamber->Z();
5de7d27f	112	// Set the signs for the symmetry transformation and transform to first quadrant
2b202c2e	113	SetSymmetry(x);
5de7d27f	114	Float_t xabs=TMath::Abs(x);
5de7d27f	115
2b202c2e	116	Int_t ifirst = (zlocal < Float_t(0))? 0:1;
5de7d27f	117	//
	118	// Find slat number
	119	for (i=ifirst; i<fNSlats; i+=2) {
	120	index=i;
2b202c2e	121	if ((y >= fYPosition[i]) && (y < fYPosition[i]+fSlatY)) break;
5de7d27f	122	}
	123
	124	//
	125	// Transform to local coordinate system
	126
	127
2b202c2e	128	ylocal = y -fYPosition[index];
5de7d27f	129	xlocal = xabs-fXPosition[index];
	130	islat = index;
	131	if (i >= fNSlats) {islat = -1; x=-1; y = -1;}
	132	}
	133
	134	void AliMUONSegmentationSlat::GlobalToLocal(
	135	Int_t ix, Int_t iy, Int_t &islat, Int_t &ixlocal, Int_t &iylocal)
	136	{
	137	//
	138	// Perform global to local transformation for pad coordinates
	139	//
2b202c2e	140	Int_t iytemp = iy;
2b202c2e	141	Int_t index = 0;
5de7d27f	142
	143	iylocal = iytemp;
	144
	145	//
	146	// Find slat number (index) and iylocal
	147	for (Int_t i=0; i<fNSlats; i++) {
	148	iytemp-=Slat(i)->Npy();
	149
	150
	151	if (iytemp <= 0) break;
	152	iylocal = iytemp;
	153	index=i+1;
	154	}
	155
	156	ixlocal=TMath::Abs(ix);
	157	islat=index;
5de7d27f	158	}
	159
	160	void AliMUONSegmentationSlat::
	161	LocalToGlobal(Int_t islat, Float_t xlocal, Float_t ylocal, Float_t &x, Float_t &y, Float_t &z)
	162	{
	163	// Transform from local to global space coordinates
	164	//
	165	// upper plane (y>0) even slat number is shifted down
	166	// upper plane (y>0) odd slat number is shifted up
	167	// lower plane (y<0) even slat number is shifted up
	168	// lower plane (y<0) odd slat number is shifted down
	169	//
	170
2b202c2e	171	x = (xlocal+fXPosition[islat])*fSym;
2b202c2e	172	y=(ylocal+fYPosition[islat]);
5de7d27f	173
2b202c2e	174	z = (TMath::Even(islat)) ? -fDz : fDz ;
5de7d27f	175	z+=fChamber->Z();
5de7d27f	176	}
	177
	178
	179	void AliMUONSegmentationSlat::LocalToGlobal(
	180	Int_t islat, Int_t ixlocal, Int_t iylocal, Int_t &ix, Int_t &iy)
	181	{
	182	// Transform from local to global pad coordinates
	183	//
	184	Int_t i;
	185	iy=iylocal;
	186
	187	//
	188	// Find slat number (index) and iylocal
	189	for (i=0; i<islat; i++) iy+=Slat(islat)->Npy();
	190
2b202c2e	191	ix=ixlocal*fSym;
2b202c2e	192	iy=iy;
5de7d27f	193	}
	194
	195
2b202c2e	196	void AliMUONSegmentationSlat::SetSymmetry(Int_t ix)
5de7d27f	197	{
5de7d27f	198	// Set set signs for symmetry transformation
2b202c2e	199	fSym=TMath::Sign(1,ix);
5de7d27f	200	}
5de7d27f	201
2b202c2e	202	void AliMUONSegmentationSlat::SetSymmetry(Float_t x)
5de7d27f	203	{
5de7d27f	204	// Set set signs for symmetry transformation
2b202c2e	205	fSym=Int_t (TMath::Sign((Float_t)1.,x));
5de7d27f	206	}
	207
	208	void AliMUONSegmentationSlat::
	209	GetPadI(Float_t x, Float_t y, Float_t z, Int_t &ix, Int_t &iy)
	210	{
	211	// Returns pad coordinates for given set of space coordinates
	212
	213	Int_t islat, i;
	214	Float_t xlocal, ylocal;
	215
	216	GlobalToLocal(x,y,z,islat,xlocal,ylocal);
	217	if (islat == -1) {
	218	ix=0; iy=0; return;
	219	}
	220
	221	Slat(islat)->GetPadI(xlocal, ylocal, ix, iy);
	222	for (i=0; i<islat; i++) iy+=Slat(islat)->Npy();
	223
deba22dc	224	ix=ix*Int_t(TMath::Sign((Float_t)1.,x));
5de7d27f	225	}
5de7d27f	226
2b202c2e	227
5de7d27f	228	void AliMUONSegmentationSlat::
	229	GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y, Float_t &z)
	230	{
	231	// Returns real coordinates (x,y) for given pad coordinates (ix,iy)
	232	//
	233	Int_t islat, ixlocal, iylocal;
	234	//
	235	// Delegation of transforamtion to slat
	236	GlobalToLocal(ix,iy,islat,ixlocal,iylocal);
	237	Slat(islat)->GetPadC(ixlocal, iylocal, x, y);
	238	// Slat offset
	239	x+=fXPosition[islat];
	240	y+=fYPosition[islat];
	241
2b202c2e	242	// Symmetry transformation of half planes
5de7d27f	243	x=x*TMath::Sign(1,ix);
2b202c2e	244
	245	// z-position
	246	z = (TMath::Even(islat)) ? -fDz : fDz ;
	247	z += fChamber->Z();
5de7d27f	248	}
	249
	250	Int_t AliMUONSegmentationSlat::ISector()
	251	{
	252	// Returns current sector during tracking
	253	Int_t iregion;
	254
	255	iregion = fCurrentSlat->ISector();
	256	return 100*fSlatIndex+iregion;
	257	}
	258
	259	Int_t AliMUONSegmentationSlat::Sector(Int_t ix, Int_t iy)
	260	{
	261	Int_t ixlocal, iylocal, iregion, islat;
	262
	263	GlobalToLocal(ix,iy,islat,ixlocal,iylocal);
	264
	265	iregion = Slat(islat)->Sector(ixlocal, iylocal);
	266	return 100*islat+iregion;
	267	}
	268
	269
	270	void AliMUONSegmentationSlat::SetPad(Int_t ix, Int_t iy)
	271	{
	272	//
	273	// Sets virtual pad coordinates, needed for evaluating pad response
	274	// outside the tracking program
	275	Int_t islat, ixlocal, iylocal;
	276
2b202c2e	277	SetSymmetry(ix);
5de7d27f	278
	279	GlobalToLocal(ix,iy,islat,ixlocal,iylocal);
	280	fSlatIndex=islat;
	281	fCurrentSlat=Slat(islat);
	282	fCurrentSlat->SetPad(ixlocal, iylocal);
	283	}
	284
	285	void AliMUONSegmentationSlat::SetHit(Float_t xhit, Float_t yhit, Float_t zhit)
	286	{ //
	287	// Sets current hit coordinates
	288
	289	Float_t xlocal, ylocal;
	290	Int_t islat;
	291
	292
	293
	294	GlobalToLocal(xhit,yhit,zhit,islat,xlocal,ylocal);
	295	fSlatIndex=islat;
	296	if (islat < 0) printf("\n SetHit: %d", islat);
	297
	298	fCurrentSlat=Slat(islat);
	299	fCurrentSlat->SetHit(xlocal, ylocal);
	300	}
	301
	302
	303	void AliMUONSegmentationSlat::
	304	FirstPad(Float_t xhit, Float_t yhit, Float_t zhit, Float_t dx, Float_t dy)
	305	{
	306	// Initialises iteration over pads for charge distribution algorithm
	307	//
	308
	309
	310
	311	Int_t islat;
	312	Float_t xlocal, ylocal;
	313	GlobalToLocal(xhit, yhit, zhit, islat, xlocal, ylocal);
	314	fSlatIndex=islat;
	315	fCurrentSlat=Slat(islat);
	316	fCurrentSlat->FirstPad(xlocal, ylocal, dx, dy);
	317
	318	}
	319
	320
	321	void AliMUONSegmentationSlat::NextPad()
	322	{
	323	// Stepper for the iteration over pads
	324	//
	325	fCurrentSlat->NextPad();
	326	}
	327
	328
	329	Int_t AliMUONSegmentationSlat::MorePads()
	330	// Stopping condition for the iterator over pads
	331	//
	332	// Are there more pads in the integration region
	333	{
	334	return fCurrentSlat->MorePads();
	335	}
	336
	337	void AliMUONSegmentationSlat::
	338	IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& y1, Float_t& y2)
	339	{
	340	// Returns integration limits for current pad
	341	//
342
343	fCurrentSlat->IntegrationLimits(x1, x2, y1, y2);
344
345	}
346
347	void AliMUONSegmentationSlat::
348	Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10])
349	{
350	// Returns list of neighbours of pad with coordinates iX, iY
351
352	Int_t i, xListLocal[10], yListLocal[10], iXlocal, iYlocal, islat;
353
2b202c2e	354	SetSymmetry(iX);
5de7d27f	355
	356	GlobalToLocal(iX, iY, islat, iXlocal, iYlocal);
	357
	358	Slat(islat)->Neighbours(iXlocal, iYlocal, Nlist, xListLocal, yListLocal);
	359
	360	for (i=0; i<*Nlist; i++) LocalToGlobal(islat, xListLocal[i], yListLocal[i], Xlist[i], Ylist[i]);
	361
	362	}
	363
	364
	365	Int_t AliMUONSegmentationSlat::Ix()
	366	{
	367	// Return current pad coordinate ix during stepping
	368	Int_t ixl,iyl,ix,iy;
	369	ixl=fCurrentSlat->Ix();
	370	iyl=fCurrentSlat->Iy();
	371
	372	LocalToGlobal(fSlatIndex, ixl, iyl, ix, iy);
	373	Int_t ixc, iyc, isc;
	374	Float_t xc, yc;
	375	GlobalToLocal(ix, iy, isc, ixc, iyc);
	376	Slat(isc)->GetPadC(ixc,iyc,xc,yc);
	377	return ix;
	378	}
	379
	380
	381	Int_t AliMUONSegmentationSlat::Iy()
	382	{
	383	// Return current pad coordinate iy during stepping
	384	Int_t ixl,iyl,ix,iy;
	385	ixl=fCurrentSlat->Ix();
	386	iyl=fCurrentSlat->Iy();
	387	LocalToGlobal(fSlatIndex, ixl, iyl, ix, iy);
	388	return iy;
	389	}
	390
	391
	392
	393	// Signal Generation Condition during Stepping
	394	Int_t AliMUONSegmentationSlat::SigGenCond(Float_t x, Float_t y, Float_t z)
	395	{
	396	//
	397	// True if signal generation condition fullfilled
	398	Float_t xlocal, ylocal;
	399	Int_t islat;
	400	GlobalToLocal(x, y, z, islat, xlocal, ylocal);
	401	return Slat(islat)->SigGenCond(xlocal, ylocal, z);
	402	}
	403
	404	// Initialise signal generation at coord (x,y,z)
	405	void AliMUONSegmentationSlat::SigGenInit(Float_t x, Float_t y, Float_t z)
	406	{
	407	// Initialize the signal generation condition
	408	//
	409	Float_t xlocal, ylocal;
	410	Int_t islat;
	411
	412	GlobalToLocal(x, y, z, islat, xlocal, ylocal);
	413	Slat(islat)->SigGenInit(xlocal, ylocal, z);
	414	}
	415
	416
	417
	418	void AliMUONSegmentationSlat::Init(Int_t chamber)
419	{
420	//
421	// Initialize slat modules of quadrant +/+
422	// The other three quadrants are handled through symmetry transformations
423	//
3e1872ed	424	printf("\n Initialise Segmentation Slat \n");
5de7d27f	425	//
	426
	427	// Initialize Slat modules
	428	Int_t islat, i;
	429	Int_t ndiv[4];
	430	// Pad division
	431	for (i=0; i<4; i++) ndiv[i]=(*fNDiv)[i];
bf61d9e2	432	//
bf61d9e2	433	fDz=0.813;
5de7d27f	434	// Slat height
5de7d27f	435	fSlatY=40.;
2b202c2e	436	for (i=0; i<15; i++) fSlatX[i]=0.;
5de7d27f	437
	438	// Initialize array of slats
	439	fSlats = new TObjArray(fNSlats);
	440	// Maximum number of strips (pads) in x and y
	441	fNpy=0;
	442	fNpx=0;
	443	// for each slat in the quadrant (+,+)
	444	for (islat=0; islat<fNSlats; islat++) {
	445	(*fSlats)[islat] = CreateSlatModule();
	446
	447	AliMUONSegmentationSlatModule *slat = Slat(islat);
	448	// Configure Slat
	449	slat->SetId(islat);
	450
	451	// Foward pad size
	452	slat->SetPadSize(fDpx, fDpy);
	453	// Forward wire pitch
	454	slat->SetDAnod(fWireD);
	455	// Foward segmentation
	456	slat->SetPadDivision(ndiv);
	457	slat->SetPcbBoards(fPcb[islat]);
	458	// Initialize slat module
	459	slat->Init(chamber);
	460	// y-position of slat module relative to the first (closest to the beam)
2b202c2e	461	fYPosition[islat]= fYPosOrigin+islat(fSlatY-2.fShift);
5de7d27f	462	//
	463	fNpy+=slat->Npy();
	464	if (slat->Npx() > fNpx) fNpx=slat->Npx();
	465	Int_t isec;
	466	for (isec=0; isec< 4; isec++)
	467	{
	468	fSlatX[islat]+=40.*fPcb[islat][isec];
	469	}
	470
	471	}
	472	// Set parent chamber number
	473	AliMUON pMUON = (AliMUON ) gAlice->GetModule("MUON");
	474	fChamber=&(pMUON->Chamber(chamber));
	475	}
	476
	477
	478
	479
	480
	481	void AliMUONSegmentationSlat::SetNPCBperSector(Int_t *npcb)
	482	{
	483	// PCB distribution for station 4 (6 rows with 1+3 segmentation regions)
	484	for (Int_t islat=0; islat<fNSlats; islat++){
	485	fPcb[islat][0] = (npcb + 4 islat);
	486	fPcb[islat][1] = (npcb + 4 islat + 1);
	487	fPcb[islat][2] = (npcb + 4 islat + 2);
	488	fPcb[islat][3] = (npcb + 4 islat + 3);
	489	}
	490	}
	491
	492
	493	void AliMUONSegmentationSlat::SetSlatXPositions(Float_t *xpos)
	494	{
	495	// Set x-positions of Slats
	496	for (Int_t islat=0; islat<fNSlats; islat++) fXPosition[islat]=xpos[islat];
	497	}
	498
	499	AliMUONSegmentationSlatModule* AliMUONSegmentationSlat::Slat(Int_t index) const
	500	{ return ((AliMUONSegmentationSlatModule) (fSlats)[index]);}
	501
	502
	503	AliMUONSegmentationSlatModule* AliMUONSegmentationSlat::
	504	CreateSlatModule()
	505	{
	506	// Factory method for slat module
	507	return new AliMUONSegmentationSlatModule();
	508	}
	509
	510
	511
	512
	513