QPositionFilter Class Reference

Inheritance diagram for QPositionFilter:

List of all members.

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Detailed Description

filter coincidences based on geometrical position of the crystals

Author:

Sergio Di Domizio

This filter is controlled by 2 parameters:

• the number of events within a coincidence that have to occur close to each other in order for the coincidence to pass the filter.
• The range of distance for which two events are considered close to each other.

Public Member Functions
	QPositionFilter (const std::string &name="QPositionFilter")
	constructor
virtual	~QPositionFilter ()
	destructor
virtual bool	Filter (const QCoincidence &coinc) const
	filter coincidence based on the geometrical pattern
virtual std::string	Dump () const
	dump filter parameters
void	SetCut (const Cuore::QInterval &cut, unsigned int howMany)
	set cuts for this filter
bool	LoadDetectorMap (const std::string &fileName)
	load detector map
Protected Member Functions
double	GetDistance (int ch1, int ch2) const
	evaluate the distance between two detectors
Protected Attributes
Cuore::QInterval	fCut
unsigned int	fHowMany
QTower	fTower

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Member Function Documentation

bool QPositionFilter::Filter

(

const QCoincidence &

coinc

)

const [virtual]

filter coincidence based on the geometrical pattern

Parameters:

coinc

the coincidence to be filtered

Returns:

true if the coincidence passed the filter, false otherwise

Coincidences with multiplcity 1 always pass the filter.

Implements QCoincidenceFilter.

std::string QPositionFilter::Dump

(

)

const [virtual]

dump filter parameters

Returns:

string describing position cuts

Implements QCoincidenceFilter.

Reimplemented in QCoPatternSplitter, and QCoPositionSplitter.

void QPositionFilter::SetCut	(	const Cuore::QInterval &	cut,
		unsigned int	howMany
	)			[inline]

set cuts for this filter

Parameters:

	cut	allowed range of distances between the events in the coincidence. Distances are in mm.
	howMany	minimum number of crystal pairs whose distance must fall within the values defined by the cut. 0 means all.

The definition of distance is the standard geometrical one.
One event must exist such that at least "howMany" other events in the coincidence have a distance with respect to it that falls within the range specified by cut.

bool QPositionFilter::LoadDetectorMap

(

const std::string &

fileName

)

load detector map

Parameters:

filename

file containing detector map. It can be a real file or "DB". In this case the detector map is loaded from db

Returns:

true on success or false if detector map cannot be loaded

double QPositionFilter::GetDistance	(	int	ch1,
		int	ch2
	)			const [protected]

evaluate the distance between two detectors

Parameters:

	ch1	logical channel of one detector
	ch2	logical channel of the other detector

Returns:

distance between the 2 crystals or -1 if any of the two crystals does not exist

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Member Data Documentation

Cuore::QInterval QPositionFilter::fCut [protected]

specifies the range of distances that wpuls allow a coincidence to pass the filter. Distances are in mm.

unsigned int QPositionFilter::fHowMany [protected]

Minimum number of crystals that have to satisfy the constraints on the distance in order for the coindicede to pass the filter. If 0, then all the events in the coincidence must satisfy the constraint.

QTower QPositionFilter::fTower [protected]

geometric description of the tower

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The documentation for this class was generated from the following files:

• /usr/local/cuore/pkg/coincidences/QPositionFilter.hh
• /usr/local/cuore/pkg/coincidences/QPositionFilter.cc

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