AliMUONTriggerCircuit.cxx

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/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
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* Author: The ALICE Off-line Project.                                    *
* Contributors are mentioned in the code where appropriate.              *
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* documentation strictly for non-commercial purposes is hereby granted   *
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* 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 "AliMUONTriggerCircuit.h"
#include "AliMUONConstants.h"
#include "AliMUONGeometryTransformer.h"

#include "AliMpTrigger.h"
#include "AliMpSlat.h"
#include "AliMpPCB.h"
#include "AliMpSegmentation.h"
#include "AliMpVSegmentation.h"
#include "AliMpCathodType.h"
#include "AliMpDDLStore.h"
#include "AliMpLocalBoard.h"
#include "AliMpConstants.h"
#include "AliMpPad.h"
#include "AliMpEncodePair.h"

#include "AliRun.h"
#include "AliLog.h"

#include <TMath.h>
#include <Riostream.h>

using std::cout;
using std::endl;
ClassImp(AliMUONTriggerCircuit)

//----------------------------------------------------------------------
AliMUONTriggerCircuit::AliMUONTriggerCircuit(const AliMUONGeometryTransformer* transformer)
    : TObject(),
      fkTransformer(transformer),
      fkCurrentSeg(0x0),
      fCurrentDetElem(0x0),
      fCurrentLocalBoard(0x0)
{
  
    for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) {
      fXpos11[i].Set(16); 
      fYpos11[i].Set(32);
      fYpos21[i].Set(64);
      fZpos11[i].Set(32);
      fZpos21[i].Set(64);
      fXwidth11[i].Set(16); 
      fYwidth11[i].Set(32);
      fYwidth21[i].Set(64);
    }

    for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { // board begins at 1
  
    AliMpLocalBoard* localBoard = AliMpDDLStore::Instance()->GetLocalBoard(i);

    if (!localBoard)
    {
      AliError(Form("Did not get localboard %d",i));
      continue;
    }

    LoadXPos(localBoard);
    LoadYPos(localBoard);
    /*
    printf("LocalBoard %03d \n",i);
    printf("fXpos11 \n");
    for (Int_t i1 = 0; i1 < 16; i1++) 
      printf("%02d   %7.2f \n",i1,fXpos11[i][i1]);
    printf("fYpos11 \n");
    for (Int_t i2 = 0; i2 < 32; i2++) 
      printf("%02d   %7.2f \n",i2,fYpos11[i][i2]);
    printf("fYpos21 \n");
    for (Int_t i3 = 0; i3 < 64; i3++) 
      printf("%02d   %7.2f \n",i3,fYpos21[i][i3]);
    printf("fZpos11 \n");
    for (Int_t i4 = 0; i4 < 32; i4++) 
      printf("%02d   %8.2f \n",i4,fZpos11[i][i4]);
    printf("fZpos21 \n");
    for (Int_t i5 = 0; i5 < 64; i5++) 
      printf("%02d   %8.2f \n",i5,fZpos21[i][i5]);
    */
  }

}

//----------------------------------------------------------------------
AliMUONTriggerCircuit::~AliMUONTriggerCircuit()
{
   for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) {
     fXpos11[i].Reset();
     fYpos11[i].Reset();
     fYpos21[i].Reset();
     fZpos11[i].Reset();
     fZpos21[i].Reset();
     fXwidth11[i].Reset();
     fYwidth11[i].Reset();
     fYwidth21[i].Reset();
    }

} 

//----------------------------------------------------------------------
AliMUONTriggerCircuit::AliMUONTriggerCircuit(const AliMUONTriggerCircuit& circuit)
    :  TObject(circuit),
       fkTransformer(circuit.fkTransformer), // do not copy, just pointed to
       fkCurrentSeg(circuit.fkCurrentSeg),
       fCurrentDetElem(circuit.fCurrentDetElem),
       fCurrentLocalBoard(circuit.fCurrentLocalBoard)
{

    for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) {
      fXpos11[i] = circuit.fXpos11[i];
      fYpos11[i] = circuit.fYpos11[i];
      fYpos21[i] = circuit.fYpos21[i];
      fZpos11[i] = circuit.fZpos11[i];
      fZpos21[i] = circuit.fZpos21[i];
      fXwidth11[i] = circuit.fXwidth11[i];
      fYwidth11[i] = circuit.fYwidth11[i];
      fYwidth21[i] = circuit.fYwidth21[i];
    }

}
//----------------------------------------------------------------------
AliMUONTriggerCircuit& AliMUONTriggerCircuit::operator=(const AliMUONTriggerCircuit& circuit) 
{

  if (this == &circuit) return *this;

  fkTransformer      = circuit.fkTransformer;
  fkCurrentSeg       = circuit.fkCurrentSeg;
  fCurrentDetElem    = circuit.fCurrentDetElem;
  fCurrentLocalBoard = circuit.fCurrentLocalBoard;

  for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) {
    fXpos11[i] = circuit.fXpos11[i];
    fYpos11[i] = circuit.fYpos11[i];
    fYpos21[i] = circuit.fYpos21[i];
    fZpos11[i] = circuit.fZpos11[i];
    fZpos21[i] = circuit.fZpos21[i];
    fXwidth11[i] = circuit.fXwidth11[i];
    fYwidth11[i] = circuit.fYwidth11[i];
    fYwidth21[i] = circuit.fYwidth21[i];
  }

  return *this;

}

//---------------------------------------------------------------------
void AliMUONTriggerCircuit::LoadYPos(AliMpLocalBoard* const localBoard)
{
  
  fCurrentLocalBoard = localBoard->GetId();
  Int_t ichamber = 0;
  Int_t icathode = 0;    
    
  Int_t zeroDown = localBoard->GetSwitch(AliMpLocalBoard::kZeroDown);
  Int_t zeroUp   = localBoard->GetSwitch(AliMpLocalBoard::kZeroUp);
 
  Int_t iline = AliMp::PairFirst(localBoard->GetPosition());
  Int_t icol  = AliMp::PairSecond(localBoard->GetPosition());
  if ( iline == 5 ) --icol;

  //--- first plane 
  ichamber = 10;
  fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber);

  fkCurrentSeg = AliMpSegmentation::Instance()
        ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode));  

  Int_t iFirstStrip = FirstStrip(localBoard);
  Int_t iLastStrip  = iFirstStrip + 16;    
  Int_t iStripCircuit = 0;

  FillXstrips(icol, iFirstStrip, iLastStrip, 
        iStripCircuit, kTRUE);
  
  //--- second plane 
  ichamber = 12;
  fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber);

  fkCurrentSeg = AliMpSegmentation::Instance()
        ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode));  

  // second plane middle part
  Int_t iFirstStripMiddle = FirstStrip(localBoard);
  Int_t iLastStripMiddle  = iFirstStrip + 16;
  iStripCircuit = 8;

  FillXstrips(icol, iFirstStripMiddle, iLastStripMiddle,
        iStripCircuit, kFALSE);
  
  // second plane upper part
  if (zeroUp == 0) { // something up
    Int_t iFirstStripUp;
    Int_t iLastStripUp;
    Int_t icolUp = icol;

    // check if we need to move to another detElemId
    AliMpPad pad = fkCurrentSeg->PadByIndices(icol-1,iLastStripMiddle+1,kFALSE);

    if (pad.IsValid()) { // upper strips within same detElemId
      iFirstStripUp = iLastStripMiddle;
      iLastStripUp  = iFirstStripUp + 8;

    } else {             // upper strips in another detElemId
      fCurrentDetElem = AliMpDDLStore::Instance()->
             GetNextDEfromLocalBoard(fCurrentLocalBoard, ichamber);

      fkCurrentSeg = AliMpSegmentation::Instance()
            ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode));  

      iFirstStripUp = 0;
      iLastStripUp  = iFirstStripUp + 8;
      if (iline == 4) icolUp = icol - 1; // special case
      if (iline == 5) icolUp = icol + 1; // special case
    }
    
    iStripCircuit = 24;
    FillXstrips(icolUp, iFirstStripUp, iLastStripUp,
    iStripCircuit, kFALSE);
    
    // fill strip between middle and upper part
    fYpos21[fCurrentLocalBoard][47] = (fYpos21[fCurrentLocalBoard][46] + 
               fYpos21[fCurrentLocalBoard][48])/2.;
    fZpos21[fCurrentLocalBoard][47] = (fZpos21[fCurrentLocalBoard][46] + 
               fZpos21[fCurrentLocalBoard][48])/2.;
    fYwidth21[fCurrentLocalBoard][47] = (fYwidth21[fCurrentLocalBoard][46] + 
           fYwidth21[fCurrentLocalBoard][48])/2.;
  } // end of something up
  
  // restore current detElemId & segmentation
  fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber);
  fkCurrentSeg = AliMpSegmentation::Instance()
      ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode));  

  // second plane lower part
  if (zeroDown == 0) { // something down
    Int_t iFirstStripDo;
    Int_t iLastStripDo;
    Int_t icolDo = icol;
    
    // check if we need to move to another detElemId      
    AliMpPad pad = fkCurrentSeg->PadByIndices(icol-1,iFirstStripMiddle-1,kFALSE);
    if (pad.IsValid()) { // lower strips within same detElemId
      iFirstStripDo = iFirstStripMiddle - 8;
      iLastStripDo  = iFirstStripDo + 8;        

    } else {             // lower strips in another detElemId 
      fCurrentDetElem = AliMpDDLStore::Instance()
    ->GetPreviousDEfromLocalBoard(fCurrentLocalBoard, ichamber);

      fkCurrentSeg = AliMpSegmentation::Instance()
    ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode));  

      // get iFirstStrip in this module 
      const AliMpTrigger* t = AliMpSegmentation::Instance()->GetTrigger(fkCurrentSeg);
      const AliMpSlat* slat = t->GetLayer(0);

      if (iline == 5) icolDo = icol + 1; // special case
      if (iline == 6) icolDo = icol - 1; // special case
      
      const AliMpPCB* pcb = slat->GetPCB(icolDo-1);
      iFirstStripDo = (pcb->Iymax() + 1) - 8;
      iLastStripDo =  iFirstStripDo + 8;
    }  
    
    iStripCircuit = 0;
    FillXstrips(icolDo, iFirstStripDo, iLastStripDo,
    iStripCircuit, kFALSE);
    
    // fill strip between middle and upper part
    fYpos21[fCurrentLocalBoard][15] = (fYpos21[fCurrentLocalBoard][14] + 
               fYpos21[fCurrentLocalBoard][16])/2.;
    fZpos21[fCurrentLocalBoard][15] = (fZpos21[fCurrentLocalBoard][14] + 
               fZpos21[fCurrentLocalBoard][16])/2.;
    fYwidth21[fCurrentLocalBoard][15] = (fYwidth21[fCurrentLocalBoard][14] + 
           fYwidth21[fCurrentLocalBoard][16])/2.;
  } // end of something down
  
}

//----------------------------------------------------------------------
void AliMUONTriggerCircuit::FillXstrips(const Int_t icol, 
          const Int_t iFirstStrip, const Int_t iLastStrip, 
          Int_t liStripCircuit, const Bool_t is11)
{    
  TArrayF& ypos   = (is11) ? fYpos11[fCurrentLocalBoard] : fYpos21[fCurrentLocalBoard];
  TArrayF& zpos   = (is11) ? fZpos11[fCurrentLocalBoard] : fZpos21[fCurrentLocalBoard];
  TArrayF& ywidth = (is11) ? fYwidth11[fCurrentLocalBoard] : fYwidth21[fCurrentLocalBoard];

  Double_t xyGlobal[3] = {0.};
  for (Int_t istrip = iFirstStrip; istrip < iLastStrip; ++istrip) {

    AliMpPad pad = fkCurrentSeg->PadByIndices(icol-1,istrip,kTRUE);
    if ( !pad.IsValid() ) {
      StdoutToAliError(cout << "Pad not found in seg " << endl;
                       fkCurrentSeg->Print();
                       cout << " ix,iy=" << icol-1 << "," << istrip << endl;
                       );
    }
    Float_t yDim = pad.GetDimensionY(); // half size! 

    XYGlobal(pad,xyGlobal);
    
    ypos[2*liStripCircuit] = xyGlobal[1];
    zpos[2*liStripCircuit] = xyGlobal[2];
    ywidth[2*liStripCircuit] = 2. * yDim;
    if (istrip != (iLastStrip - 1)) {
      ypos[2*liStripCircuit+1] = xyGlobal[1] + yDim;
      zpos[2*liStripCircuit+1] = xyGlobal[2];
      ywidth[2*liStripCircuit+1] = 2. * yDim;
    }
    liStripCircuit++;
  }    
}


//----------------------------------------------------------------------
void AliMUONTriggerCircuit::LoadXPos(AliMpLocalBoard* const localBoard)
{

  fCurrentLocalBoard = localBoard->GetId();

  Int_t ichamber = 10;
  Int_t icathode = 1;
  
  Int_t x2u = localBoard->GetSwitch(AliMpLocalBoard::kX2u);
  Int_t x2m = localBoard->GetSwitch(AliMpLocalBoard::kX2m);
  Int_t x2d = localBoard->GetSwitch(AliMpLocalBoard::kX2d);
  Int_t zeroAllYLSB = localBoard->GetSwitch(AliMpLocalBoard::kZeroAllYLSB);

  Int_t  iStripCircuit = 0;
  Int_t  iFirstStrip   = 0;
  Int_t  iLastStrip    = 0;
  Bool_t doubling      = kFALSE;
  
  Int_t iline = AliMp::PairFirst(localBoard->GetPosition());
  Int_t icol  = AliMp::PairSecond(localBoard->GetPosition());
  if ( iline == 5 ) --icol;

  fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber);

  fkCurrentSeg = AliMpSegmentation::Instance()
        ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode));  

  // check if one needs a strip doubling or not
  if ( (x2u || x2m || x2d ) && x2m ) doubling = kTRUE;
  

  // check if one starts at strip = 0 or 8 (boards 26-29 and 143-146)
  if (zeroAllYLSB) iStripCircuit = 8;
  
  // get iFirstStrip in this module 
  const AliMpTrigger* t = AliMpSegmentation::Instance()->GetTrigger(fkCurrentSeg);
  const AliMpSlat* slat = t->GetLayer(0);
  
  const AliMpPCB* pcb = slat->GetPCB(icol-1);
  iFirstStrip = pcb->Ixmin();
  

  if (doubling || zeroAllYLSB == 1) iLastStrip = iFirstStrip + 8;
  else iLastStrip = iFirstStrip + 16;
  
  FillYstrips(iFirstStrip, iLastStrip, iStripCircuit, doubling);  
}

//----------------------------------------------------------------------
void AliMUONTriggerCircuit::FillYstrips(const Int_t iFirstStrip, const Int_t iLastStrip, 
          Int_t liStripCircuit,
          const Bool_t doubling)
{    
  Double_t xyGlobal[3] = {0.};

  for (Int_t istrip = iFirstStrip; istrip < iLastStrip; ++istrip) {

    AliMpPad pad = fkCurrentSeg->PadByIndices(istrip,0,kTRUE);

    if ( !pad.IsValid() )
    {
  StdoutToAliError(cout << "Pad not found in seg " << endl;
       fkCurrentSeg->Print();
       cout << " ix,iy=" << istrip << "," << 0 << endl;
       );
    }
    Float_t xDim = pad.GetDimensionX(); // half size!

    XYGlobal(pad,xyGlobal);
    
    if (!doubling) {  
      fXpos11[fCurrentLocalBoard].AddAt(xyGlobal[0], liStripCircuit);
      fXwidth11[fCurrentLocalBoard].AddAt(2. * xDim, liStripCircuit);
    } else if (doubling) {

      fXpos11[fCurrentLocalBoard].AddAt(TMath::Sign(1.,xyGlobal[0]) * 
          (TMath::Abs(xyGlobal[0]) - xDim/2.), 2*liStripCircuit);
      fXwidth11[fCurrentLocalBoard].AddAt(2. * xDim, 2*liStripCircuit);

      fXpos11[fCurrentLocalBoard].AddAt(TMath::Sign(1.,xyGlobal[0]) *
          (TMath::Abs(fXpos11[fCurrentLocalBoard][2*liStripCircuit]) + xDim),
          2*liStripCircuit + 1); 
      fXwidth11[fCurrentLocalBoard].AddAt(2. * xDim, 2*liStripCircuit + 1);
    }

    liStripCircuit++;
  }    
}

//----------------------------------------------------------------------
void AliMUONTriggerCircuit::XYGlobal(const AliMpPad& pad,
             Double_t* xyGlobal)
{
  
  // get the pad position and dimensions
  Double_t xl1 = pad.GetPositionX();
  Double_t yl1 = pad.GetPositionY();
  
  // positions from local to global 
  fkTransformer->Local2Global(fCurrentDetElem, xl1, yl1, 0, 
                                 xyGlobal[0], xyGlobal[1], xyGlobal[2]);
}


//----------------------------------------------------------------------
//--- methods which return member data related info
//----------------------------------------------------------------------
//----------------------------------------------------------------------
Float_t AliMUONTriggerCircuit::GetX11Pos(Int_t localBoardId, Int_t istrip) const 
{
  return fXpos11[localBoardId][istrip];
}
Float_t AliMUONTriggerCircuit::GetY11Pos(Int_t localBoardId, Int_t istrip) const 
{
  return fYpos11[localBoardId][istrip];
}
//----------------------------------------------------------------------
Float_t AliMUONTriggerCircuit::GetY21Pos(Int_t localBoardId, Int_t istrip) const 
{
  return fYpos21[localBoardId][istrip];
}
//----------------------------------------------------------------------
Float_t AliMUONTriggerCircuit::GetZ11Pos(Int_t localBoardId, Int_t istrip) const 
{
  return fZpos11[localBoardId][istrip];
}
//----------------------------------------------------------------------
Float_t AliMUONTriggerCircuit::GetZ21Pos(Int_t localBoardId, Int_t istrip) const 
{
  return fZpos21[localBoardId][istrip];
}
Float_t AliMUONTriggerCircuit::GetX11Width(Int_t localBoardId, Int_t istrip) const 
{
  return fXwidth11[localBoardId][istrip];
}
Float_t AliMUONTriggerCircuit::GetY11Width(Int_t localBoardId, Int_t istrip) const 
{
  return fYwidth11[localBoardId][istrip];
}
//----------------------------------------------------------------------
Float_t AliMUONTriggerCircuit::GetY21Width(Int_t localBoardId, Int_t istrip) const 
{
  return fYwidth21[localBoardId][istrip];
}

//----------------------------------------------------------------------
Int_t AliMUONTriggerCircuit::FirstStrip(AliMpLocalBoard* localBoard)
{
  Int_t iFirstStrip = -1;
  Int_t boardNumber = atoi(localBoard->GetName()+6);

  Int_t iline = AliMp::PairFirst(localBoard->GetPosition());
  Int_t icol  = AliMp::PairSecond(localBoard->GetPosition());
  if ( iline == 5 ) --icol;

  switch (boardNumber)
  {
    case 12:
      iFirstStrip = 0;
      break;    
    case 34:
      iFirstStrip = 16;
      break;    
    case 56:
      iFirstStrip = 32;
      break;    
    case 78:
      iFirstStrip = 48;
      break;    
  }
  if (icol == 1 && iline == 6) iFirstStrip += 16; // special case
  return iFirstStrip;
}

//----------------------------------------------------------------------
Float_t AliMUONTriggerCircuit::PtCal(Int_t localBoardId, Int_t istripX, Int_t idev, Int_t istripY) const{

  Int_t istripX2=istripX+idev+1; // find istripX2 using istripX and idev

  Float_t yPosX1=fYpos11[localBoardId][istripX];
  Float_t yPosX2=fYpos21[localBoardId][istripX2];
  Float_t xPosY1=fXpos11[localBoardId][istripY];

// Z distance between IP and center of dipole
  Float_t zf= 0.5 *(AliMUONConstants::CoilZ() + AliMUONConstants::YokeZ());
  Float_t z1=fZpos11[localBoardId][istripX];
  Float_t z2=fZpos21[localBoardId][istripX2];
  Float_t thetaDev=(1./TMath::Abs(zf))*(yPosX1*z2-yPosX2*z1)/(z2-z1);
  Float_t xf=xPosY1*zf/z1; 
  Float_t yf=yPosX2-((yPosX2-yPosX1)*(z2-zf))/(z2-z1);
  return (3.*0.3/TMath::Abs(thetaDev)) * TMath::Sqrt(xf*xf+yf*yf)/TMath::Abs(zf);
}