[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.                  *
 **************************************************************************/

/* $Id$ */

#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 <TBRIK.h>
#include <TNode.h>
#include <TGeometry.h>
#include <Riostream.h>

//___________________________________________
ClassImp(AliMUONSegmentationSlat)

AliMUONSegmentationSlat::AliMUONSegmentationSlat() 
{
// Default constructor
  fChamber = 0;
  fNDiv = 0;
  fSlats = 0;
  fCurrentSlat = 0;
}

AliMUONSegmentationSlat::AliMUONSegmentationSlat(Int_t /*nsec*/) 
{
// Non default constructor
    fSlats=0;            
    fNDiv = new TArrayI(4);
    fChamber = 0;
    fCurrentSlat = 0;
}

AliMUONSegmentationSlat::~AliMUONSegmentationSlat(){
  //PH Delete TObjArrays
  if (fSlats) {
    fSlats->Delete();
    delete fSlats;
  }

  if (fNDiv) {
    delete fNDiv;
  }

}
//-----------------------------------------------------------
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;
}
//-----------------------------------------------------------
void AliMUONSegmentationSlat::GetNParallelAndOffset(Int_t /*iX*/, Int_t /*iY*/, Int_t *Nparallel, Int_t *Offset) 
{
  *Nparallel=1;
  *Offset=0;
}
//-----------------------------------------------------------
void AliMUONSegmentationSlat::GiveTestPoints(Int_t & /*n*/, Float_t */*x*/, Float_t */*y*/)  const 
{;}
//-----------------------------------------------------------
Float_t AliMUONSegmentationSlat::Distance2AndOffset(Int_t /*iX*/, Int_t /*iY*/, Float_t /*X*/, Float_t /*Y*/, Int_t * /*dummy*/) 
{
  return 0.;
}
//-----------------------------------------------------------
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;
    Float_t eps = 1.e-4;
    
// 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();

//     zlocal = (x>0) ? zlocal-2.*fDz : zlocal+2.*fDz;
    zlocal = (x>0) ? zlocal+2.*fDz : zlocal-2.*fDz;      //Change?

//  Set the signs for the symmetry transformation and transform to first quadrant
    SetSymmetry(x);
    Float_t xabs=TMath::Abs(x);


// Find slat number                      
    for (i=0; i<fNSlats; i+=1) {       //Loop on all slats (longuer but more secure)
	index=i;
	if ((y >= fYPosition[i]-eps) && (y <= fYPosition[i]+fSlatY+eps)) break;
    }
    
//
// Transform to local coordinate system

    
    if (index >= fNSlats || index < 0 ) {
      islat = -1; xlocal=-1; ylocal = -1; }
    else {
      ylocal = y   -fYPosition[index];
      xlocal = xabs-fXPosition[index];
      islat  = index;
    }
}

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 ; //Change for new referential
    z = (x>0)                ? z+2.*fDz : z-2.*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 ; //Change for new referential
    z = (x>0)                ?  z+2.*fDz : z-2.*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)
{
// Returns sector for pad coordiantes (ix,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;
    if (islat>-1) {
      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->AddAt(CreateSlatModule(),islat);

	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));
    fId=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
  //PH { return ((AliMUONSegmentationSlatModule*) (*fSlats)[index]);}
{ return ((AliMUONSegmentationSlatModule*) fSlats->At(index));}


AliMUONSegmentationSlatModule* AliMUONSegmentationSlat::
CreateSlatModule()
{
    // Factory method for slat module
    return new AliMUONSegmentationSlatModule(4);
}


void AliMUONSegmentationSlat::Draw(const char* opt) const
{
// Draw method for event display
// 
  if (!strcmp(opt,"eventdisplay")) { 
    const int kColorMUON1 = kYellow;
    const int kColorMUON2 = kBlue; 
    //
    //  Drawing Routines for example for Event Display
    Int_t i,j;
    Int_t npcb[15];
    char nameChamber[9], nameSlat[9], nameNode[9];
    
    //
    // Number of modules per slat
    for (i=0; i<fNSlats; i++) {
      npcb[i]=0;
      for (j=0; j<4; j++) npcb[i]+=fPcb[i][j];
    }  
    //
    TNode* top=gAlice->GetGeometry()->GetNode("alice");
    sprintf(nameChamber,"C_MUON%d",fId+1);
    new TBRIK(nameChamber,"Mother","void",340,340,5.);
    top->cd();
    sprintf(nameNode,"MUON%d",100+fId+1);
    TNode* node = new TNode(nameNode,"Chambernode",nameChamber,0,0,fChamber->Z(),"");
    
    node->SetLineColor(kBlack);
    AliMUON *pMUON  = (AliMUON *) gAlice->GetModule("MUON");
    (pMUON->Nodes())->Add(node);
    TNode* nodeSlat;
    Int_t color;
    
    for (j=0; j<fNSlats; j++)
      {
	sprintf(nameSlat,"SLAT%d",100*fId+1+j);
	Float_t dx = 20.*npcb[j];
	Float_t dy = 20;
	new TBRIK(nameSlat,"Slat Module","void",dx,20.,0.25);
	node->cd();
	color =  TMath::Even(j) ? kColorMUON1 : kColorMUON2;
	
	sprintf(nameNode,"SLAT%d",100*fId+1+j);
	nodeSlat = 
	  new TNode(nameNode,"Slat Module",nameSlat, dx+fXPosition[j],fYPosition[j]+dy,0,"");
	nodeSlat->SetLineColor(color);
	node->cd();
	sprintf(nameNode,"SLAT%d",100*fId+1+j+fNSlats);
	nodeSlat = 
	  new TNode(nameNode,"Slat Module",nameSlat,-dx-fXPosition[j],fYPosition[j]+dy,0,"");
	nodeSlat->SetLineColor(color);
      }
  }
}
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
88cb7938	16	/* $Id$ */
5de7d27f	17
	18	#include "AliMUONSegmentationSlat.h"
	19	#include "AliMUONSegmentationSlatModule.h"
	20	#include "AliMUON.h"
	21	#include "AliMUONChamber.h"
	22	#include "TArrayI.h"
	23	#include "TObjArray.h"
	24	#include "AliRun.h"
	25	#include <TMath.h>
aaf4addd	26	#include <TBRIK.h>
	27	#include <TNode.h>
	28	#include <TGeometry.h>
70479d0e	29	#include <Riostream.h>
5de7d27f	30
	31	//___________________________________________
	32	ClassImp(AliMUONSegmentationSlat)
	33
	34	AliMUONSegmentationSlat::AliMUONSegmentationSlat()
	35	{
	36	// Default constructor
edf34242	37	fChamber = 0;
	38	fNDiv = 0;
	39	fSlats = 0;
	40	fCurrentSlat = 0;
e9e4cdf2	41	}
e9e4cdf2	42
6aaf81e6	43	AliMUONSegmentationSlat::AliMUONSegmentationSlat(Int_t /nsec/)
e9e4cdf2	44	{
e9e4cdf2	45	// Non default constructor
5de7d27f	46	fSlats=0;
3f5cf0b3	47	fNDiv = new TArrayI(4);
	48	fChamber = 0;
	49	fCurrentSlat = 0;
5de7d27f	50	}
5de7d27f	51
c2c0190f	52	AliMUONSegmentationSlat::~AliMUONSegmentationSlat(){
	53	//PH Delete TObjArrays
	54	if (fSlats) {
	55	fSlats->Delete();
	56	delete fSlats;
	57	}
e9e4cdf2	58
	59	if (fNDiv) {
	60	delete fNDiv;
	61	}
	62
c2c0190f	63	}
6aaf81e6	64	//-----------------------------------------------------------
5de7d27f	65	void AliMUONSegmentationSlat::SetPadSize(Float_t p1, Float_t p2)
	66	{
	67	// Sets the pad (strip) size
	68	//
	69	fDpx=p1;
	70	fDpy=p2;
	71	}
6aaf81e6	72	//-----------------------------------------------------------
5de7d27f	73	Float_t AliMUONSegmentationSlat::GetAnod(Float_t xhit) const
	74	{
	75	// Returns for a hit position xhit the position of the nearest anode wire
	76	Float_t wire= (xhit>0)? Int_t(xhit/fWireD)+0.5:Int_t(xhit/fWireD)-0.5;
	77	return fWireD*wire;
	78	}
6aaf81e6	79	//-----------------------------------------------------------
	80	void AliMUONSegmentationSlat::GetNParallelAndOffset(Int_t /iX/, Int_t /iY/, Int_t Nparallel, Int_t Offset)
	81	{
	82	*Nparallel=1;
	83	*Offset=0;
	84	}
	85	//-----------------------------------------------------------
	86	void AliMUONSegmentationSlat::GiveTestPoints(Int_t & /n/, Float_t /x/, Float_t /y/) const
	87	{;}
	88	//-----------------------------------------------------------
	89	Float_t AliMUONSegmentationSlat::Distance2AndOffset(Int_t /iX/, Int_t /iY/, Float_t /X/, Float_t /Y/, Int_t * /dummy/)
	90	{
	91	return 0.;
	92	}
	93	//-----------------------------------------------------------
5de7d27f	94	Float_t AliMUONSegmentationSlat::Dpx(Int_t isec) const
	95	{
	96	//
	97	// Returns x-pad size for given sector isec
	98	// isec = 100*islat+iregion
	99	//
	100	Int_t islat, iregion;
	101	islat = isec/100;
	102	iregion = isec%100;
	103	return Slat(islat)->Dpx(iregion);
	104	}
	105
6aaf81e6	106	Float_t AliMUONSegmentationSlat::Dpy(Int_t /isec/) const
5de7d27f	107	{
	108	//
	109	// Returns y-pad (strip) size for given sector isec
	110	return fDpy;
	111	}
	112
	113	void AliMUONSegmentationSlat::SetPadDivision(Int_t ndiv[4])
	114	{
	115	//
	116	// Defines the pad size perp. to the anode wire (y) for different sectors.
	117	// Pad sizes are defined as integral fractions ndiv of a basis pad size
	118	// fDpx
	119	//
	120	for (Int_t i=0; i<4; i++) {
	121	(*fNDiv)[i]=ndiv[i];
	122	}
	123	}
	124
	125	void AliMUONSegmentationSlat::GlobalToLocal(
	126	Float_t x, Float_t y, Float_t z, Int_t &islat, Float_t &xlocal, Float_t &ylocal)
	127	{
	128	//
	129	// Perform local to global transformation for space coordinates
	130	//
	131	Float_t zlocal;
	132	Int_t i;
	133	Int_t index=-1;
fa8037e2	134	Float_t eps = 1.e-4;
fa8037e2	135
5de7d27f	136	// Transform According to slat plane z-position: negative side is shifted down
	137	// positive side is shifted up
	138	// by half the overlap
	139	zlocal = z-fChamber->Z();
1391e633	140
	141	// zlocal = (x>0) ? zlocal-2.fDz : zlocal+2.fDz;
	142	zlocal = (x>0) ? zlocal+2.fDz : zlocal-2.fDz; //Change?
	143
5de7d27f	144	// Set the signs for the symmetry transformation and transform to first quadrant
2b202c2e	145	SetSymmetry(x);
5de7d27f	146	Float_t xabs=TMath::Abs(x);
5de7d27f	147
1391e633	148
5de7d27f	149	// Find slat number
1391e633	150	for (i=0; i<fNSlats; i+=1) { //Loop on all slats (longuer but more secure)
5de7d27f	151	index=i;
fa8037e2	152	if ((y >= fYPosition[i]-eps) && (y <= fYPosition[i]+fSlatY+eps)) break;
5de7d27f	153	}
	154
	155	//
	156	// Transform to local coordinate system
	157
	158
25d71048	159	if (index >= fNSlats \|\| index < 0 ) {
	160	islat = -1; xlocal=-1; ylocal = -1; }
	161	else {
	162	ylocal = y -fYPosition[index];
	163	xlocal = xabs-fXPosition[index];
	164	islat = index;
	165	}
5de7d27f	166	}
	167
	168	void AliMUONSegmentationSlat::GlobalToLocal(
	169	Int_t ix, Int_t iy, Int_t &islat, Int_t &ixlocal, Int_t &iylocal)
	170	{
	171	//
	172	// Perform global to local transformation for pad coordinates
	173	//
2b202c2e	174	Int_t iytemp = iy;
2b202c2e	175	Int_t index = 0;
5de7d27f	176
	177	iylocal = iytemp;
	178
	179	//
	180	// Find slat number (index) and iylocal
	181	for (Int_t i=0; i<fNSlats; i++) {
	182	iytemp-=Slat(i)->Npy();
	183
	184
	185	if (iytemp <= 0) break;
	186	iylocal = iytemp;
	187	index=i+1;
	188	}
	189
	190	ixlocal=TMath::Abs(ix);
	191	islat=index;
5de7d27f	192	}
	193
	194	void AliMUONSegmentationSlat::
	195	LocalToGlobal(Int_t islat, Float_t xlocal, Float_t ylocal, Float_t &x, Float_t &y, Float_t &z)
	196	{
	197	// Transform from local to global space coordinates
	198	//
	199	// upper plane (y>0) even slat number is shifted down
	200	// upper plane (y>0) odd slat number is shifted up
	201	// lower plane (y<0) even slat number is shifted up
	202	// lower plane (y<0) odd slat number is shifted down
	203	//
	204
2b202c2e	205	x = (xlocal+fXPosition[islat])*fSym;
2b202c2e	206	y=(ylocal+fYPosition[islat]);
5de7d27f	207
1391e633	208	z = (TMath::Even(islat)) ? fDz : -fDz ; //Change for new referential
e1ad7d45	209	z = (x>0) ? z+2.fDz : z-2.fDz ;
e1ad7d45	210
5de7d27f	211	z+=fChamber->Z();
5de7d27f	212	}
	213
	214
	215	void AliMUONSegmentationSlat::LocalToGlobal(
	216	Int_t islat, Int_t ixlocal, Int_t iylocal, Int_t &ix, Int_t &iy)
	217	{
	218	// Transform from local to global pad coordinates
	219	//
	220	Int_t i;
	221	iy=iylocal;
	222
	223	//
	224	// Find slat number (index) and iylocal
	225	for (i=0; i<islat; i++) iy+=Slat(islat)->Npy();
	226
2b202c2e	227	ix=ixlocal*fSym;
2b202c2e	228	iy=iy;
5de7d27f	229	}
	230
	231
2b202c2e	232	void AliMUONSegmentationSlat::SetSymmetry(Int_t ix)
5de7d27f	233	{
5de7d27f	234	// Set set signs for symmetry transformation
2b202c2e	235	fSym=TMath::Sign(1,ix);
5de7d27f	236	}
5de7d27f	237
2b202c2e	238	void AliMUONSegmentationSlat::SetSymmetry(Float_t x)
5de7d27f	239	{
5de7d27f	240	// Set set signs for symmetry transformation
2b202c2e	241	fSym=Int_t (TMath::Sign((Float_t)1.,x));
5de7d27f	242	}
	243
	244	void AliMUONSegmentationSlat::
	245	GetPadI(Float_t x, Float_t y, Float_t z, Int_t &ix, Int_t &iy)
	246	{
	247	// Returns pad coordinates for given set of space coordinates
	248
	249	Int_t islat, i;
	250	Float_t xlocal, ylocal;
	251
	252	GlobalToLocal(x,y,z,islat,xlocal,ylocal);
	253	if (islat == -1) {
	254	ix=0; iy=0; return;
	255	}
	256
	257	Slat(islat)->GetPadI(xlocal, ylocal, ix, iy);
	258	for (i=0; i<islat; i++) iy+=Slat(islat)->Npy();
	259
deba22dc	260	ix=ix*Int_t(TMath::Sign((Float_t)1.,x));
5de7d27f	261	}
5de7d27f	262
2b202c2e	263
5de7d27f	264	void AliMUONSegmentationSlat::
	265	GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y, Float_t &z)
	266	{
	267	// Returns real coordinates (x,y) for given pad coordinates (ix,iy)
	268	//
	269	Int_t islat, ixlocal, iylocal;
	270	//
	271	// Delegation of transforamtion to slat
	272	GlobalToLocal(ix,iy,islat,ixlocal,iylocal);
	273	Slat(islat)->GetPadC(ixlocal, iylocal, x, y);
	274	// Slat offset
	275	x+=fXPosition[islat];
	276	y+=fYPosition[islat];
	277
2b202c2e	278	// Symmetry transformation of half planes
5de7d27f	279	x=x*TMath::Sign(1,ix);
2b202c2e	280
2b202c2e	281	// z-position
1391e633	282	z = (TMath::Even(islat)) ? fDz : -fDz ; //Change for new referential
e1ad7d45	283	z = (x>0) ? z+2.fDz : z-2.fDz ;
2b202c2e	284	z += fChamber->Z();
5de7d27f	285	}
	286
	287	Int_t AliMUONSegmentationSlat::ISector()
	288	{
	289	// Returns current sector during tracking
	290	Int_t iregion;
	291
	292	iregion = fCurrentSlat->ISector();
	293	return 100*fSlatIndex+iregion;
	294	}
	295
	296	Int_t AliMUONSegmentationSlat::Sector(Int_t ix, Int_t iy)
	297	{
de05461e	298	// Returns sector for pad coordiantes (ix,iy)
5de7d27f	299	Int_t ixlocal, iylocal, iregion, islat;
	300
	301	GlobalToLocal(ix,iy,islat,ixlocal,iylocal);
	302
	303	iregion = Slat(islat)->Sector(ixlocal, iylocal);
	304	return 100*islat+iregion;
	305	}
	306
	307
	308	void AliMUONSegmentationSlat::SetPad(Int_t ix, Int_t iy)
	309	{
	310	//
	311	// Sets virtual pad coordinates, needed for evaluating pad response
	312	// outside the tracking program
	313	Int_t islat, ixlocal, iylocal;
	314
2b202c2e	315	SetSymmetry(ix);
5de7d27f	316
	317	GlobalToLocal(ix,iy,islat,ixlocal,iylocal);
	318	fSlatIndex=islat;
	319	fCurrentSlat=Slat(islat);
	320	fCurrentSlat->SetPad(ixlocal, iylocal);
	321	}
	322
	323	void AliMUONSegmentationSlat::SetHit(Float_t xhit, Float_t yhit, Float_t zhit)
	324	{ //
	325	// Sets current hit coordinates
	326
	327	Float_t xlocal, ylocal;
	328	Int_t islat;
	329
	330
	331
	332	GlobalToLocal(xhit,yhit,zhit,islat,xlocal,ylocal);
	333	fSlatIndex=islat;
	334	if (islat < 0) printf("\n SetHit: %d", islat);
	335
	336	fCurrentSlat=Slat(islat);
	337	fCurrentSlat->SetHit(xlocal, ylocal);
	338	}
	339
	340
	341	void AliMUONSegmentationSlat::
	342	FirstPad(Float_t xhit, Float_t yhit, Float_t zhit, Float_t dx, Float_t dy)
	343	{
	344	// Initialises iteration over pads for charge distribution algorithm
	345	//
	346
	347
5de7d27f	348	Int_t islat;
	349	Float_t xlocal, ylocal;
	350	GlobalToLocal(xhit, yhit, zhit, islat, xlocal, ylocal);
	351	fSlatIndex=islat;
25d71048	352	if (islat>-1) {
	353	fCurrentSlat=Slat(islat);
	354	fCurrentSlat->FirstPad(xlocal, ylocal, dx, dy);
	355	}
5de7d27f	356
	357	}
	358
	359
	360	void AliMUONSegmentationSlat::NextPad()
	361	{
	362	// Stepper for the iteration over pads
	363	//
	364	fCurrentSlat->NextPad();
	365	}
	366
	367
	368	Int_t AliMUONSegmentationSlat::MorePads()
	369	// Stopping condition for the iterator over pads
	370	//
	371	// Are there more pads in the integration region
	372	{
	373	return fCurrentSlat->MorePads();
	374	}
	375
	376	void AliMUONSegmentationSlat::
	377	IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& y1, Float_t& y2)
	378	{
	379	// Returns integration limits for current pad
	380	//
	381
	382	fCurrentSlat->IntegrationLimits(x1, x2, y1, y2);
	383
	384	}
	385
	386	void AliMUONSegmentationSlat::
	387	Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10])
	388	{
	389	// Returns list of neighbours of pad with coordinates iX, iY
	390
	391	Int_t i, xListLocal[10], yListLocal[10], iXlocal, iYlocal, islat;
	392
2b202c2e	393	SetSymmetry(iX);
5de7d27f	394
	395	GlobalToLocal(iX, iY, islat, iXlocal, iYlocal);
	396
	397	Slat(islat)->Neighbours(iXlocal, iYlocal, Nlist, xListLocal, yListLocal);
	398
	399	for (i=0; i<*Nlist; i++) LocalToGlobal(islat, xListLocal[i], yListLocal[i], Xlist[i], Ylist[i]);
	400
	401	}
	402
	403
	404	Int_t AliMUONSegmentationSlat::Ix()
	405	{
	406	// Return current pad coordinate ix during stepping
	407	Int_t ixl,iyl,ix,iy;
	408	ixl=fCurrentSlat->Ix();
	409	iyl=fCurrentSlat->Iy();
	410
	411	LocalToGlobal(fSlatIndex, ixl, iyl, ix, iy);
	412	Int_t ixc, iyc, isc;
	413	Float_t xc, yc;
	414	GlobalToLocal(ix, iy, isc, ixc, iyc);
	415	Slat(isc)->GetPadC(ixc,iyc,xc,yc);
	416	return ix;
	417	}
	418
	419
	420	Int_t AliMUONSegmentationSlat::Iy()
	421	{
	422	// Return current pad coordinate iy during stepping
	423	Int_t ixl,iyl,ix,iy;
	424	ixl=fCurrentSlat->Ix();
	425	iyl=fCurrentSlat->Iy();
	426	LocalToGlobal(fSlatIndex, ixl, iyl, ix, iy);
	427	return iy;
	428	}
	429
	430
	431
	432	// Signal Generation Condition during Stepping
	433	Int_t AliMUONSegmentationSlat::SigGenCond(Float_t x, Float_t y, Float_t z)
	434	{
	435	//
	436	// True if signal generation condition fullfilled
	437	Float_t xlocal, ylocal;
	438	Int_t islat;
	439	GlobalToLocal(x, y, z, islat, xlocal, ylocal);
	440	return Slat(islat)->SigGenCond(xlocal, ylocal, z);
	441	}
	442
	443	// Initialise signal generation at coord (x,y,z)
	444	void AliMUONSegmentationSlat::SigGenInit(Float_t x, Float_t y, Float_t z)
	445	{
	446	// Initialize the signal generation condition
	447	//
	448	Float_t xlocal, ylocal;
	449	Int_t islat;
	450
	451	GlobalToLocal(x, y, z, islat, xlocal, ylocal);
	452	Slat(islat)->SigGenInit(xlocal, ylocal, z);
	453	}
	454
	455
	456
	457	void AliMUONSegmentationSlat::Init(Int_t chamber)
458	{
459	//
460	// Initialize slat modules of quadrant +/+
461	// The other three quadrants are handled through symmetry transformations
462	//
9e1a0ddb	463	//printf("\n Initialise Segmentation Slat \n");
5de7d27f	464	//
5de7d27f	465
aaf4addd	466	// Initialize Slat modules
5de7d27f	467	Int_t islat, i;
	468	Int_t ndiv[4];
	469	// Pad division
	470	for (i=0; i<4; i++) ndiv[i]=(*fNDiv)[i];
bf61d9e2	471	//
bf61d9e2	472	fDz=0.813;
5de7d27f	473	// Slat height
5de7d27f	474	fSlatY=40.;
2b202c2e	475	for (i=0; i<15; i++) fSlatX[i]=0.;
5de7d27f	476
	477	// Initialize array of slats
	478	fSlats = new TObjArray(fNSlats);
	479	// Maximum number of strips (pads) in x and y
	480	fNpy=0;
	481	fNpx=0;
	482	// for each slat in the quadrant (+,+)
	483	for (islat=0; islat<fNSlats; islat++) {
cd4df77b	484	fSlats->AddAt(CreateSlatModule(),islat);
5de7d27f	485
	486	AliMUONSegmentationSlatModule *slat = Slat(islat);
	487	// Configure Slat
	488	slat->SetId(islat);
	489
	490	// Foward pad size
	491	slat->SetPadSize(fDpx, fDpy);
	492	// Forward wire pitch
	493	slat->SetDAnod(fWireD);
	494	// Foward segmentation
	495	slat->SetPadDivision(ndiv);
	496	slat->SetPcbBoards(fPcb[islat]);
	497	// Initialize slat module
	498	slat->Init(chamber);
	499	// y-position of slat module relative to the first (closest to the beam)
2b202c2e	500	fYPosition[islat]= fYPosOrigin+islat(fSlatY-2.fShift);
5de7d27f	501	//
	502	fNpy+=slat->Npy();
	503	if (slat->Npx() > fNpx) fNpx=slat->Npx();
	504	Int_t isec;
	505	for (isec=0; isec< 4; isec++)
	506	{
	507	fSlatX[islat]+=40.*fPcb[islat][isec];
	508	}
	509
	510	}
	511	// Set parent chamber number
	512	AliMUON pMUON = (AliMUON ) gAlice->GetModule("MUON");
	513	fChamber=&(pMUON->Chamber(chamber));
aaf4addd	514	fId=chamber;
5de7d27f	515	}
	516
	517
	518
	519
	520
	521	void AliMUONSegmentationSlat::SetNPCBperSector(Int_t *npcb)
	522	{
	523	// PCB distribution for station 4 (6 rows with 1+3 segmentation regions)
	524	for (Int_t islat=0; islat<fNSlats; islat++){
	525	fPcb[islat][0] = (npcb + 4 islat);
	526	fPcb[islat][1] = (npcb + 4 islat + 1);
	527	fPcb[islat][2] = (npcb + 4 islat + 2);
	528	fPcb[islat][3] = (npcb + 4 islat + 3);
	529	}
	530	}
	531
	532
	533	void AliMUONSegmentationSlat::SetSlatXPositions(Float_t *xpos)
	534	{
	535	// Set x-positions of Slats
	536	for (Int_t islat=0; islat<fNSlats; islat++) fXPosition[islat]=xpos[islat];
	537	}
	538
	539	AliMUONSegmentationSlatModule* AliMUONSegmentationSlat::Slat(Int_t index) const
2682e810	540	//PH { return ((AliMUONSegmentationSlatModule) (fSlats)[index]);}
2682e810	541	{ return ((AliMUONSegmentationSlatModule*) fSlats->At(index));}
5de7d27f	542
	543
	544	AliMUONSegmentationSlatModule* AliMUONSegmentationSlat::
	545	CreateSlatModule()
	546	{
	547	// Factory method for slat module
e9e4cdf2	548	return new AliMUONSegmentationSlatModule(4);
5de7d27f	549	}
	550
	551
aaf4addd	552	void AliMUONSegmentationSlat::Draw(const char* opt) const
aaf4addd	553	{
de05461e	554	// Draw method for event display
de05461e	555	//
aaf4addd	556	if (!strcmp(opt,"eventdisplay")) {
	557	const int kColorMUON1 = kYellow;
	558	const int kColorMUON2 = kBlue;
	559	//
	560	// Drawing Routines for example for Event Display
	561	Int_t i,j;
	562	Int_t npcb[15];
	563	char nameChamber[9], nameSlat[9], nameNode[9];
	564
	565	//
	566	// Number of modules per slat
	567	for (i=0; i<fNSlats; i++) {
	568	npcb[i]=0;
	569	for (j=0; j<4; j++) npcb[i]+=fPcb[i][j];
	570	}
	571	//
	572	TNode* top=gAlice->GetGeometry()->GetNode("alice");
	573	sprintf(nameChamber,"C_MUON%d",fId+1);
	574	new TBRIK(nameChamber,"Mother","void",340,340,5.);
	575	top->cd();
	576	sprintf(nameNode,"MUON%d",100+fId+1);
	577	TNode* node = new TNode(nameNode,"Chambernode",nameChamber,0,0,fChamber->Z(),"");
	578
	579	node->SetLineColor(kBlack);
	580	AliMUON pMUON = (AliMUON ) gAlice->GetModule("MUON");
	581	(pMUON->Nodes())->Add(node);
	582	TNode* nodeSlat;
	583	Int_t color;
	584
	585	for (j=0; j<fNSlats; j++)
	586	{
	587	sprintf(nameSlat,"SLAT%d",100*fId+1+j);
	588	Float_t dx = 20.*npcb[j];
	589	Float_t dy = 20;
	590	new TBRIK(nameSlat,"Slat Module","void",dx,20.,0.25);
	591	node->cd();
	592	color = TMath::Even(j) ? kColorMUON1 : kColorMUON2;
	593
	594	sprintf(nameNode,"SLAT%d",100*fId+1+j);
	595	nodeSlat =
	596	new TNode(nameNode,"Slat Module",nameSlat, dx+fXPosition[j],fYPosition[j]+dy,0,"");
	597	nodeSlat->SetLineColor(color);
	598	node->cd();
	599	sprintf(nameNode,"SLAT%d",100*fId+1+j+fNSlats);
	600	nodeSlat =
	601	new TNode(nameNode,"Slat Module",nameSlat,-dx-fXPosition[j],fYPosition[j]+dy,0,"");
	602	nodeSlat->SetLineColor(color);
	603	}
	604	}
	605	}
5de7d27f	606
	607
	608