AliMpRowSegmentLSpecial.cxx

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// $Id$
// $MpId: AliMpRowSegmentLSpecial.cxx,v 1.7 2006/05/24 13:58:46 ivana Exp $
// Category: sector

//-----------------------------------------------------------------------------
// Class AliMpRowSegmentLSpecial
// -----------------------------
// Class describing a special inner row segment composed of the 
// pad rows.
// Included in AliRoot: 2003/05/02
// Authors: David Guez, Ivana Hrivnacova; IPN Orsay
//-----------------------------------------------------------------------------

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

#include "AliMpRowSegmentLSpecial.h"
#include "AliMpRow.h"
#include "AliMpPadRow.h"
#include "AliMpVPadRowSegment.h"
#include "AliMpMotif.h"
#include "AliMpMotifType.h"
#include "AliMpMotifMap.h"
#include "AliMpMotifPosition.h"
#include "AliMpConstants.h"
#include "AliMpEncodePair.h"

#include "AliLog.h"

using std::endl;
ClassImp(AliMpRowSegmentLSpecial)

//______________________________________________________________________________
AliMpRowSegmentLSpecial::AliMpRowSegmentLSpecial(AliMpRow* row, Double_t offsetX)
  : AliMpVRowSegmentSpecial(row, offsetX)
{
}

//______________________________________________________________________________
AliMpRowSegmentLSpecial::AliMpRowSegmentLSpecial() 
  : AliMpVRowSegmentSpecial()
{
}

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

//
// private methods  
//

//______________________________________________________________________________
AliMpVPadRowSegment*  
AliMpRowSegmentLSpecial::FindMostRightPadRowSegment(Int_t motifPositionId) const
{

  AliMpVPadRowSegment* found = 0;

  for (Int_t i=0; i<GetNofPadRows(); i++) {
    AliMpPadRow* padRow = GetPadRow(i);    

    for (Int_t j=0; j<padRow->GetNofPadRowSegments(); j++) { 
      AliMpVPadRowSegment* padRowSegment = padRow->GetPadRowSegment(j);

      if ( padRowSegment->GetMotifPositionId() == motifPositionId &&
           (!found || padRowSegment->RightBorderX() > found->RightBorderX()))
     
        found = padRowSegment;  
    }
  }

  return found;     
}

//
// protected methods  
//

//______________________________________________________________________________
void AliMpRowSegmentLSpecial::MotifCenterSlow(Int_t motifPositionId,
                                              Double_t& x, Double_t& y) const
{

  // Find the first (left, down) pad row segment with this motifPositionId.
  AliMpVPadRowSegment* downPadRowSegment 
    = FindPadRowSegment(motifPositionId);
  AliMpVPadRowSegment* rightPadRowSegment 
    = FindMostRightPadRowSegment(motifPositionId);
  
  // Check if the motifPositionId is present 
  if (!downPadRowSegment || !rightPadRowSegment) {
    AliErrorStream() << "Outside row segment region" << endl;
    return;
  }

  // Check if both pad row segments have the same motif 
  if (downPadRowSegment->GetMotif() != rightPadRowSegment->GetMotif()) {
    AliFatal("Outside row segment region");
    return;
  }

  // Get position of found row segment
  x = rightPadRowSegment->RightBorderX();       
  y = GetRow()->LowBorderY()  ;   
  
  for (Int_t i=0; i<downPadRowSegment->GetPadRow()->GetID(); i++)
    y += GetPadRow(i)->HalfSizeY()*2.;
    
  // Add motifs dimensions
  x -= downPadRowSegment->GetMotif()->DimensionX();
  y += downPadRowSegment->GetMotif()->DimensionY();
}

//
// public methods  
//

//______________________________________________________________________________
void AliMpRowSegmentLSpecial::UpdatePadsOffset()
{

  // Get the neighbour row segment
  // (the first normal segment)
  AliMpVRowSegment* neighbour = GetRow()->GetRowSegment(1);

  // Get the the pads offset of the neighbour row segment
  // (the first normal segment)
  MpPair_t offset = neighbour->GetLowIndicesLimit();
  
  // Find max nof pads in a row
  Int_t maxNofPads = MaxNofPadsInRow();

  // Set limits
  SetLowIndicesLimit(offset - AliMp::Pair(maxNofPads, 0));

  // Reset limits in the neighbour row segment
  // (pad offset is now included in the special segment)  
  neighbour->SetLowIndicesLimit(0, neighbour->GetLowLimitIy());
}

//______________________________________________________________________________
Double_t  AliMpRowSegmentLSpecial::LeftBorderX() const
{

  Double_t leftBorder = DBL_MAX;
  for (Int_t i=0; i<GetNofPadRows(); i++) {
    AliMpPadRow* padRow = GetPadRow(i);
    Double_t border 
      = padRow->GetPadRowSegment(padRow->GetNofPadRowSegments()-1)->LeftBorderX();
      
    if (border < leftBorder) leftBorder =  border;
  }  
  
  return leftBorder;
}

//______________________________________________________________________________
Double_t  AliMpRowSegmentLSpecial::RightBorderX() const
{

  Double_t sameBorder = GetOffsetX();

  // Consistence check  
  Double_t rightBorder = -DBL_MAX;
  for (Int_t i=0; i<GetNofPadRows(); i++) {
    AliMpPadRow* padRow = GetPadRow(i);
    Double_t border = padRow->GetPadRowSegment(0)->RightBorderX();
    if (border > rightBorder) rightBorder =  border;
  }  

  if (TMath::Abs(GetOffsetX() - rightBorder) > 1.e-04)  {
    AliErrorStream() << "WrongBorder" << endl;
    return sameBorder;
  }  
  
  return rightBorder;
}

//______________________________________________________________________________
Double_t AliMpRowSegmentLSpecial::GetPositionX() const
{

  return GetOffsetX() - GetDimensionX();        
}

//______________________________________________________________________________
Double_t AliMpRowSegmentLSpecial::GetPositionY() const
{

  return GetRow()->GetPositionY();  
}

#include <Riostream.h>
//______________________________________________________________________________
Int_t AliMpRowSegmentLSpecial::SetIndicesToMotifPosition(Int_t i, MpPair_t indices)
{

  // Get motif position
  AliMpMotifPosition* motifPosition
    = GetRow()->GetMotifMap()->FindMotifPosition(GetMotifPositionId(i));

  // Low limit
  MpPair_t low 
    = AliMp::Pair(GetLowLimitIx() + AliMpConstants::StartPadIndex(), 
            AliMp::PairSecond(indices))
      + FindRelativeLowIndicesOf(GetMotifPositionId(i));
            
  if (! motifPosition->IsHighLimitValid()) {   
     motifPosition->SetLowIndicesLimit(low);
  } 
  else {
    if ( motifPosition->GetLowLimitIx() > AliMp::PairFirst(low) )
      motifPosition->SetLowIndicesLimit(
                                 AliMp::PairFirst(low),
                                 motifPosition->GetLowLimitIy());

    if ( motifPosition->GetLowLimitIy() > AliMp::PairSecond(low) )
       motifPosition->SetLowIndicesLimit(
                                 motifPosition->GetLowLimitIx(),
                                 AliMp::PairSecond(low) );
  }
             
  // High limit      
  AliMpMotifType* motifType = motifPosition->GetMotif()->GetMotifType();  
  MpPair_t high 
    = motifPosition->GetLowIndicesLimit()
      + AliMp::Pair(motifType->GetNofPadsX()-1, motifType->GetNofPadsY()-1);  
                
  motifPosition->SetHighIndicesLimit(high);

  // Increment index only if last motif position is processed 
  if ( i != GetNofMotifs()-1 ) 
    return AliMp::PairFirst(indices);
    //return 0;
  else
    return AliMp::PairFirst(indices) + MaxNofPadsInRow();  
    //return MaxNofPadsInRow();  
}
//______________________________________________________________________________
void AliMpRowSegmentLSpecial::SetGlobalIndices(AliMpRow* rowBefore)
{

  // Low ix
  Int_t ixl = GetLowLimitIx() + AliMpConstants::StartPadIndex();
      // the pads offset was already defined by Reader

  // High ix
  Int_t ixh = ixl + MaxNofPadsInRow() - 1;

  // Low iy
  Int_t iyl = AliMpConstants::StartPadIndex();
  if (rowBefore) {
    //if (constPadSizeDirection == kY) {
      iyl = rowBefore->GetHighLimitIy()+1;
    //} 
    /*
    else {
      AliMpVRowSegment* seg = rowBefore->FindRowSegment(ixl); 
      AliMpMotifPosition* motPos =  rowBefore->FindMotifPosition(seg, ixl);
      if (!motPos) 
        Fatal("SetGlobalIndices", "Motif position in rowBefore not found.");
      iyl = motPos->GetHighLimitIy()+1;
    }
    */
  }  

  // High iy
  Int_t iyh = iyl + GetNofPadRows() - 1;
  
  SetLowIndicesLimit(ixl, iyl);
  SetHighIndicesLimit(ixh, iyh);
}