P1D.cpp

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* This software is distributed under the terms of the Apache version 2 licence,     *
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#ifdef __ICC
// disable icc remark #2259: non-pointer conversion from "X" to "Y" may lose significant bits
//   TODO: To be removed, since it comes from ROOT TMathBase.h
#  pragma warning( disable : 2259 )
#endif
 
#include "GaudiPI.h"
#include <Gaudi/MonitoringHub.h>
#include <GaudiCommonSvc/HistogramUtility.h>
#include <GaudiCommonSvc/P1D.h>
#include <GaudiKernel/ObjectFactory.h>
 
#include <cmath>
 
std::pair<DataObject*, AIDA::IProfile1D*> Gaudi::createProf1D( ISvcLocator* svcLocator, const std::string& path,
                                                               const std::string& title, int nBins, double xlow,
                                                               double xup, double ylow, double yup,
                                                               const std::string& opt ) {
  auto _p = new TProfile( title.c_str(), title.c_str(), nBins, xlow, xup, ylow, yup, opt.c_str() );
  auto p  = new Profile1D( _p );
  svcLocator->monitoringHub().registerEntity( "", path, "histogram:ProfileHistogram:double", *p );
  return { p, p };
}
 
std::pair<DataObject*, AIDA::IProfile1D*> Gaudi::createProf1D( ISvcLocator* svcLocator, const std::string& path,
                                                               const std::string& title, const Edges& e, double ylow,
                                                               double yup, const std::string& opt ) {
  auto p =
      new Profile1D( new TProfile( title.c_str(), title.c_str(), e.size() - 1, &e.front(), ylow, yup, opt.c_str() ) );
  svcLocator->monitoringHub().registerEntity( "", path, "histogram:ProfileHistogram:double", *p );
  return { p, p };
}
 
std::pair<DataObject*, AIDA::IProfile1D*> Gaudi::createProf1D( ISvcLocator* svcLocator, const std::string& path,
                                                               const AIDA::IProfile1D& hist ) {
  TProfile* h = getRepresentation<AIDA::IProfile1D, TProfile>( hist );
  auto      n = ( h ? new Profile1D( new TProfile( *h ) ) : nullptr );
  if ( n ) { svcLocator->monitoringHub().registerEntity( "", path, "histogram:ProfileHistogram:double", *n ); }
  return { n, n };
}
 
namespace Gaudi {
  template <>
  int Generic1D<AIDA::IProfile1D, TProfile>::binEntries( int index ) const {
    return int( m_rep->GetBinEntries( rIndex( index ) ) + 0.5 );
  }
 
  template <>
  void* Generic1D<AIDA::IProfile1D, TProfile>::cast( const std::string& className ) const {
    return className == "AIDA::IProfile1D"
               ? const_cast<AIDA::IProfile1D*>( static_cast<const AIDA::IProfile1D*>( this ) )
           : className == "AIDA::IProfile" ? const_cast<AIDA::IProfile*>( static_cast<const AIDA::IProfile*>( this ) )
           : className == "AIDA::IBaseHistogram"
               ? const_cast<AIDA::IBaseHistogram*>( static_cast<const AIDA::IBaseHistogram*>( this ) )
               : nullptr;
  }
 
  template <>
  void Generic1D<AIDA::IProfile1D, TProfile>::adoptRepresentation( TObject* rep ) {
    TProfile* imp = dynamic_cast<TProfile*>( rep );
    if ( !imp ) throw std::runtime_error( "Cannot adopt native histogram representation." );
    m_rep.reset( imp );
    m_axis.initialize( m_rep->GetXaxis(), true );
    const TArrayD* a = m_rep->GetSumw2();
    if ( !a || ( a && a->GetSize() == 0 ) ) m_rep->Sumw2();
    setTitle( m_rep->GetTitle() );
  }
} // namespace Gaudi
 
Gaudi::Profile1D::Profile1D() : Base( new TProfile() ) { init( "", false ); }
 
Gaudi::Profile1D::Profile1D( TProfile* rep ) : Base( rep ) { init( m_rep->GetTitle() ); }
 
void Gaudi::Profile1D::init( const std::string& title, bool initialize_axis ) {
  m_classType = "IProfile1D";
  setTitle( title );
  setName( title );
  if ( initialize_axis ) { axis().initialize( m_rep->GetXaxis(), false ); }
  // m_rep->SetErrorOption("s");
  m_rep->SetDirectory( nullptr );
  m_sumEntries = 0;
}
 
bool Gaudi::Profile1D::setBinContents( int i, int entries, double height, double /*error*/, double spread,
                                       double /* centre */ ) {
  m_rep->SetBinEntries( rIndex( i ), entries );
  // set content takes in root height * entries
  m_rep->SetBinContent( rIndex( i ), height * entries );
  // set error takes sqrt of bin sum(w*y**2)
  double sumwy2Bin = ( spread * spread + height * height ) * entries;
  m_rep->SetBinError( rIndex( i ), sqrt( sumwy2Bin ) );
  m_sumEntries += entries;
  // not very efficient (but do evey bin since root cannot figure out by himself)
  m_rep->SetEntries( m_sumEntries );
  return true;
}
 
bool Gaudi::Profile1D::fill( double x, double y, double weight ) {
  // avoid race conditions when filling the profile
  auto guard = std::scoped_lock{ m_fillSerialization };
  m_rep->Fill( x, y, weight );
  return true;
}