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GravityBin2D.cpp

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00001 #include "GravityBin2D.h"
00002 
00003 Anaphe::AIDA_Histogram_native::GravityBin2D::GravityBin2D():
00004   Anaphe::AIDA_Histogram_native::GravityBin1D(),
00005   m_sumOfWeightTimesCoord( 0 )
00006 {}
00007 
00008 
00009 bool
00010 Anaphe::AIDA_Histogram_native::GravityBin2D::reset()
00011 {
00012   m_sumOfWeightTimesCoord = 0;
00013   return Anaphe::AIDA_Histogram_native::GravityBin1D::reset();
00014 }
00015 
00016 
00017 bool
00018 Anaphe::AIDA_Histogram_native::GravityBin2D::scale( double factor )
00019 {
00020   m_sumOfWeightTimesCoord *= factor;
00021   return Anaphe::AIDA_Histogram_native::GravityBin1D::scale( factor );
00022 }
00023 
00024 
00025 bool
00026 Anaphe::AIDA_Histogram_native::GravityBin2D::increment( const Anaphe::AIDA_Histogram_native::GravityBin2D& otherBin )
00027 {
00028   m_sumOfWeightTimesCoord += otherBin.m_sumOfWeightTimesCoord;
00029   return Anaphe::AIDA_Histogram_native::GravityBin1D::increment( static_cast< const Anaphe::AIDA_Histogram_native::GravityBin1D& >( otherBin ) );
00030 }
00031 
00032 
00033 bool
00034 Anaphe::AIDA_Histogram_native::GravityBin2D::increment( int extraEntries,
00035                                                         double extraHeight,
00036                                                         double extraError,
00037                                                         double extraCentreX,
00038                                                         double extraCentreY )
00039 {
00040   m_sumOfWeightTimesCoord += extraCentreY * extraHeight;
00041   return Anaphe::AIDA_Histogram_native::GravityBin1D::increment( extraEntries, extraHeight, extraError, extraCentreX );
00042 }
00043 
00044 
00045 bool
00046 Anaphe::AIDA_Histogram_native::GravityBin2D::set( int entriesNew,
00047                                                   double heightNew,
00048                                                   double errorNew,
00049                                                   double centreXNew,
00050                                                   double centreYNew )
00051 {
00052   m_sumOfWeightTimesCoord = centreYNew * heightNew;
00053   return Anaphe::AIDA_Histogram_native::GravityBin1D::set( entriesNew, heightNew, errorNew, centreXNew );
00054 }
00055 
00056 
00057 double
00058 Anaphe::AIDA_Histogram_native::GravityBin2D::centreOfGravityY() const
00059 {
00060   const double theHeight = height();
00061   if ( theHeight == 0 ) {
00062     return 0;
00063   }
00064   else {
00065     return ( m_sumOfWeightTimesCoord / theHeight );
00066   }
00067 }

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