cass::ACQIRIS::ConstantFraction Namespace Reference

Functions
template<typename T >
void	getcfd (const Channel &c, const CFDParameters &param, SignalProducer::signals_t &sig)
	Implematation of Constant Fraction Method. More...
void	loadSettings (CASSSettings &s, CFDParameters &p, uint32_t &instrument, size_t &channelNbr)
	implementation of loading settings for both CFD classes More...

Function Documentation

template<typename T >

void cass::ACQIRIS::ConstantFraction::getcfd	(	const Channel &	c,
		const CFDParameters &	param,
		SignalProducer::signals_t &	sig
	)

Implematation of Constant Fraction Method.

The CFD calculates a second trace from the original trace, where two points of the original create one point of the cfd trace

It will then find where the new trace will cross the walk value where this point defines the time.

Template Parameters

T	type of a wavform point

Parameters

[in]	c	the channel that contains the waveform to analyze
[in]	param	the user defined parameters for extracting signal in the waveform
[out]	sig	the container with all the found signals

Author

Lutz Foucar

Todo:

make sure that is works right, since we get back a double

Definition at line 45 of file cfd.cpp.

References cass::ACQIRIS::CFDParameters::_delay, cass::ACQIRIS::CFDParameters::_fraction, cass::ACQIRIS::CFDParameters::_polarity, cass::ACQIRIS::CFDParameters::_threshold, cass::ACQIRIS::CFDParameters::_timeranges, cass::ACQIRIS::CFDParameters::_walk, cass::ACQIRIS::Bad, cass::ACQIRIS::cfd, cass::ACQIRIS::Channel::gain(), cass::ACQIRIS::Channel::horpos(), cass::ACQIRIS::isUsed, cass::ACQIRIS::NbrSignalDefinitions, cass::ACQIRIS::Negative, cass::ACQIRIS::Channel::offset(), cass::ACQIRIS::polarity, cass::ACQIRIS::Positive, cass::ACQIRIS::Channel::sampleInterval(), cass::ACQIRIS::time, cass::ACQIRIS::Channel::waveform(), cass::ACQIRIS::x, and cass::ACQIRIS::y.

void cass::ACQIRIS::ConstantFraction::loadSettings	(	CASSSettings &	s,
		CFDParameters &	p,
		uint32_t &	instrument,
		size_t &	channelNbr
	)

implementation of loading settings for both CFD classes

this function implements the retrieval of the settings for the CFD signal extractors. For a description on the settings see decription of CFD8Bit class.
It opens the group "ContantFraction" and retrieves the settings for the CFD algorithm from the CASSSettings object.

Parameters

[in]	s	the CASSSettings object we retrieve the information from
[out]	p	the container for the Constant Fraction Parameters
[out]	instrument	the instrument that contains the channel the constant fraction signal extractor should anlyze.
[out]	channelNbr	the channel number of the channel that conatins the singals that this extractor should extract.

Author

Lutz Foucar

Definition at line 210 of file cfd.cpp.

References cass::ACQIRIS::CFDParameters::_delay, cass::ACQIRIS::CFDParameters::_fraction, cass::ACQIRIS::CFDParameters::_polarity, cass::ACQIRIS::CFDParameters::_threshold, cass::ACQIRIS::CFDParameters::_timeranges, cass::ACQIRIS::CFDParameters::_walk, QSettings::beginGroup(), QSettings::beginReadArray(), QSettings::endArray(), QSettings::endGroup(), cass::ACQIRIS::Negative, QSettings::setArrayIndex(), size, and QSettings::value().

Referenced by cass::loadAllDets(), cass::ACQIRIS::CFD8Bit::loadSettings(), and cass::ACQIRIS::CFD16Bit::loadSettings().