GaudiHistos_2DVariableBinning.icpp

Go to the documentation of this file.

/***********************************************************************************\
* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
*                                                                                   *
* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
*                                                                                   *
* In applying this licence, CERN does not waive the privileges and immunities       *
* granted to it by virtue of its status as an Intergovernmental Organization        *
* or submit itself to any jurisdiction.                                             *
\***********************************************************************************/
// ==================================== 2D ====================================
// ============================= Variable Binning =============================
// ============================================================================
// book the 2D histogram (book on demand)
// ============================================================================
template <class PBASE>
AIDA::IHistogram2D* GaudiHistos<PBASE>::book2D( const std::string& title, const HistoBinEdges& edgesX,
                                                const HistoBinEdges& edgesY ) const {
  //
  if ( !produceHistos() ) { return nullptr; } // RETURN
  //
  // exist?
  auto hist = histo2D( title );
  // histogram is already booked
  if ( hist ) { return hist; } // RETURN !!
 
  // propose the histogram ID
  HistoID ID;
  newHistoID( title, ID );
 
  // Create a new histogram and return
  return this->book2D( ID, title, edgesX, edgesY );
}
// ============================================================================
// book the 2D histogram with forced ID (book on demand)
// ============================================================================
template <class PBASE>
AIDA::IHistogram2D* GaudiHistos<PBASE>::book2D( const HistoID& ID, const std::string& title,
                                                const HistoBinEdges& edgesX, const HistoBinEdges& edgesY ) const {
  //
  if ( !produceHistos() ) { return nullptr; } // RETURN
  //
  // Check ID
  if ( ID.undefined() ) {
    this->Error( "Undefined Histogram ID : Title='" + title + "'" ).ignore();
    return nullptr;
  }
 
  // exist?
  auto hist = histo2D( ID );
  // histogram is already booked
  if ( hist ) { return hist; } // RETURN !!
 
  // Histogram title
  const std::string& htitle = ( title.empty() ? "Unnamed 2D Histogram ID=" + ID.idAsString() : title );
 
  // book the histogram
  if ( ID.numeric() ) {
    hist = this->histoSvc()->book( histoPath(), ID.numericID(), htitle, edgesX, edgesY );
  } else if ( ID.literal() ) {
    hist = this->histoSvc()->book( histoPath() + "/" + ID.literalID(), htitle, edgesX, edgesY );
  }
 
  // check OK
  if ( !hist ) {
    this->Error( "IHistogram2D* points to NULL! ID='" + ID.idAsString() + "' title='" + htitle + "'" ).ignore();
    return nullptr;
  } // RETURN !!
 
  // add histogram into histogram storages
  m_histo2DMapID[ID]       = hist;
  m_histo2DMapTitle[title] = hist;
 
  // Declare to monitoring service
  monitorHisto( Gaudi::Utils::Histos::toBase( hist ), ID );
 
  // Printout and return
  if ( this->msgLevel( MSG::DEBUG ) ) {
    this->debug() << "Booked 2D Histogram : ID='" << ID << "' Path=" << histoPath() << " Title='"
                  << Gaudi::Utils::Histos::htitle( hist ) << "'" << endmsg;
  }
  return hist;
}
// ============================================================================
// fill the 2D histogram (book on demand)
// ============================================================================
template <class PBASE>
AIDA::IHistogram2D* GaudiHistos<PBASE>::plot2D( const double valueX, const double valueY, const std::string& title,
                                                const HistoBinEdges& edgesX, const HistoBinEdges& edgesY,
                                                const double weight ) const {
  AIDA::IHistogram2D* h( nullptr );
  if ( produceHistos() ) {
    // retrieve or book the histogram
    h = histo2D( title );
    if ( !h ) { h = book2D( title, edgesX, edgesY ); }
    // fill the histogram
    h = fill( h, valueX, valueY, weight, title );
  }
  return h;
}
// ============================================================================
// fill the 2D variable histogram with forced ID assignment (book on demand)
// ============================================================================
template <class PBASE>
AIDA::IHistogram2D* GaudiHistos<PBASE>::plot2D( const double valueX, const double valueY, const HistoID& ID,
                                                const std::string& title, const HistoBinEdges& edgesX,
                                                const HistoBinEdges& edgesY, const double weight ) const {
  AIDA::IHistogram2D* h( nullptr );
  if ( produceHistos() ) {
    // retrieve or book the histogram
    h = histo2D( ID );
    if ( !h ) { h = book2D( ID, title, edgesX, edgesY ); }
    // fill
    h = fill( h, valueX, valueY, weight, title );
  }
  return h;
}
// ============================================================================
// The END
// ============================================================================