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grimes |
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#include "l1menu/TriggerRatePlot.h"
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#include "l1menu/ITrigger.h"
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#include "l1menu/IEvent.h"
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#include "l1menu/TriggerTable.h"
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#include <TH1F.h>
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#include <iostream>
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#include <sstream>
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l1menu::TriggerRatePlot::TriggerRatePlot( const l1menu::ITrigger& trigger, std::unique_ptr<TH1> pHistogram, const std::string versusParameter )
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: pHistogram_( std::move(pHistogram) ), versusParameter_(versusParameter), histogramOwnedByMe_(true)
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{
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// Take a copy of the trigger
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l1menu::TriggerTable& table=l1menu::TriggerTable::instance();
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pTrigger_=table.copyTrigger( trigger );
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// Make sure the versusParameter_ supplied is valid. If it's not then this call will
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// throw an exception.
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pTrigger_->parameter(versusParameter_);
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// I want to make a note of the other parameters set for the trigger. As far as I know TH1
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// has no way of adding annotations so I'll tag it on the end of the title.
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std::stringstream description;
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description << pTrigger_->name() << " rate versus " << versusParameter;
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// Loop over all of the parameters and add their values to the description
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std::vector<std::string> parameterNames=pTrigger_->parameterNames();
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description << " [v" << pTrigger_->version();
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if( parameterNames.size()>1 ) description << ",";
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for( std::vector<std::string>::const_iterator iName=parameterNames.begin(); iName!=parameterNames.end(); ++iName )
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{
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if( *iName==versusParameter ) continue; // Don't bother adding the parameter I'm plotting against
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description << *iName << "=" << pTrigger_->parameter(*iName);
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if( iName+1!=parameterNames.end() ) description << ","; // Add delimeter between parameter names
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}
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description << "]";
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pHistogram_->SetTitle( description.str().c_str() );
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}
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l1menu::TriggerRatePlot::TriggerRatePlot( l1menu::TriggerRatePlot&& otherTriggerRatePlot ) noexcept
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: pTrigger_( std::move(otherTriggerRatePlot.pTrigger_) ), pHistogram_( std::move(otherTriggerRatePlot.pHistogram_) ),
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versusParameter_( std::move(otherTriggerRatePlot.versusParameter_) ), histogramOwnedByMe_(histogramOwnedByMe_)
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{
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// No operation besides the initaliser list
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}
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l1menu::TriggerRatePlot& l1menu::TriggerRatePlot::operator=( l1menu::TriggerRatePlot&& otherTriggerRatePlot ) noexcept
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{
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// Free up whatever was there before
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pTrigger_.reset();
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if( histogramOwnedByMe_ ) pHistogram_.reset();
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else pHistogram_.release();
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// Then copy from the other object
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pTrigger_=std::move(otherTriggerRatePlot.pTrigger_);
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pHistogram_=std::move(otherTriggerRatePlot.pHistogram_);
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versusParameter_=std::move(otherTriggerRatePlot.versusParameter_);
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histogramOwnedByMe_=histogramOwnedByMe_;
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return *this;
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}
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l1menu::TriggerRatePlot::~TriggerRatePlot()
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{
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// If the flag has been set telling me that this instance doesn't own the histogram,
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// then I need to tell the unique_ptr not to delete it.
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if( !histogramOwnedByMe_ )
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{
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pHistogram_.release();
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}
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}
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void l1menu::TriggerRatePlot::addEvent( const l1menu::IEvent& event ) const
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{
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float& threshold1=pTrigger_->parameter(versusParameter_);
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// loop over all of the bins in the histogram, and see if the trigger passes
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// for the value at the center of the bin.
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for( int binNumber=1; binNumber<pHistogram_->GetNbinsX(); ++binNumber )
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{
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threshold1=pHistogram_->GetBinCenter(binNumber);
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if( pTrigger_->apply( event ) )
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{
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pHistogram_->Fill( threshold1, event.weight() );
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}
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// could put an "else break" in here, but I don't know if triggers
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// will run their thresholds the other way. E.g. a trigger could require
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// a minimum amount of energy in the event, in which case the higher
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// bins will pass.
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}
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}
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TH1* l1menu::TriggerRatePlot::getPlot()
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{
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return pHistogram_.get();
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}
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TH1* l1menu::TriggerRatePlot::relinquishOwnershipOfPlot()
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{
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// Rather than call release() on the unique_ptr, I'll set a flag so that I know
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// to release() in the destructor instead. This way it's possible to relinquish
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// ownership but still perform operations on the histograms.
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histogramOwnedByMe_=false;
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return pHistogram_.get();
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}
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