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AlignmentParametersIORoot.cc

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// this class's header
#include "Alignment/CommonAlignmentAlgorithm/interface/AlignmentParametersIORoot.h"

#include "TTree.h"

#include "Alignment/CommonAlignment/interface/Alignable.h" 
#include "Alignment/CommonAlignmentParametrization/interface/RigidBodyAlignmentParameters.h"

// ----------------------------------------------------------------------------
// constructor

AlignmentParametersIORoot::AlignmentParametersIORoot()
{
  treename = "AlignmentParameters";
  treetxt = "Alignment Parameters";
}

// ----------------------------------------------------------------------------

void AlignmentParametersIORoot::createBranches(void) 
{
  tree->Branch("parSize",   &theCovRang,   "CovRang/I");
  tree->Branch("Id",        &theId,        "Id/i");
  tree->Branch("Par",       &thePar,       "Par[CovRang]/D");
  tree->Branch("covarSize", &theCovarRang, "CovarRang/I");
  tree->Branch("Cov",       &theCov,       "Cov[CovarRang]/D");
  tree->Branch("ObjId",     &theObjId,     "ObjId/I");
  tree->Branch("HieraLevel",&theHieraLevel,"HieraLevel/I");
}

// ----------------------------------------------------------------------------

void AlignmentParametersIORoot::setBranchAddresses(void) 
{
  tree->SetBranchAddress("parSize",   &theCovRang);
  tree->SetBranchAddress("covarSize", &theCovarRang);
  tree->SetBranchAddress("Id",        &theId);
  tree->SetBranchAddress("Par",       &thePar);
  tree->SetBranchAddress("Cov",       &theCov);
  tree->SetBranchAddress("ObjId",     &theObjId);
  tree->SetBranchAddress("HieraLevel",&theHieraLevel);
}

// ----------------------------------------------------------------------------

int AlignmentParametersIORoot::findEntry(align::ID id, align::StructureType comp)
{
  double noAliPar = tree->GetEntries();
  for (int ev = 0;ev<noAliPar;ev++) {
    tree->GetEntry(ev); 
    if ( theId==id && theObjId==comp ) return (ev);
  }
  return -1;
}

// ----------------------------------------------------------------------------
int AlignmentParametersIORoot::writeOne(Alignable* ali)
{
  const AlignmentParameters* ap =ali->alignmentParameters();
  const AlgebraicVector& params = ap->parameters();
  const AlgebraicSymMatrix& cov = ap->covariance();

  theCovRang   = params.num_row();
  theCovarRang = theCovRang*(theCovRang+1)/2;
  int count=0;
  for(int row=0;row<theCovRang;row++){
    thePar[row]=params[row];
    for(int col=0;col<theCovRang;col++){
      if(row-1<col) { theCov[count] = cov[row][col]; count++; }
    }
  }

  theId = ali->id();
  theObjId = ali->alignableObjectId();
  theHieraLevel = ap->hierarchyLevel();

  tree->Fill();
  return 0;
}

// ----------------------------------------------------------------------------

AlignmentParameters* AlignmentParametersIORoot::readOne( Alignable* ali, int& ierr )
{
  
  AlignmentParameters* alipar = 0;
  AlgebraicVector par(nParMax,0);
  AlgebraicSymMatrix cov(nParMax,0);
  const std::vector<bool> &sel = ali->alignmentParameters()->selector();
 
  int entry = findEntry( ali->id(), ali->alignableObjectId() );
  if( entry != -1 ) 
        {
          tree->GetEntry(entry);
          int covsize = theCovRang;
          int count=0;
          for(int row=0;row<covsize;row++) 
                {
                  par[row]=thePar[row];
                  for(int col=0; col < covsize;col++) {
                        if(row-1<col) {cov[row][col]=theCov[count];count++;}
                  }
                } 
          // FIXME: In future should check which kind of parameters to construct...
          alipar = new RigidBodyAlignmentParameters(ali,par,cov,sel);
          alipar->setValid(true); 
          ierr=0;
          return alipar;
        }

  ierr=-1;
  return(0);
}

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