FFT Class Reference

#include <FFT.h>

Inheritance diagram for FFT:

List of all members.

Public Member Functions
	FFT (ApplicationWindow *parent, Graph *g, const QString &curveTitle, double start, double end)
	FFT (ApplicationWindow *parent, Graph *g, const QString &curveTitle)
	FFT (ApplicationWindow *parent, Table *t, const QString &realColName, const QString &imagColName=QString(), int from=1, int to=-1)
void	normalizeAmplitudes (bool norm=true)
void	setInverseFFT (bool inverse=true)
void	setSampling (double sampling)
void	shiftFrequencies (bool shift=true)
Private Member Functions
QString	fftCurve ()
QString	fftTable ()
void	init ()
void	output (const QString &text)
void	output ()
	Performs the data analysis and takes care of the output.
bool	setDataFromTable (Table *t, const QString &realColName, const QString &imagColName=QString(), int from=0, int to=-1)
Private Attributes
int	d_imag_col
bool	d_inverse
	Flag telling if an inverse FFT must be performed.
bool	d_normalize
	Flag telling if the amplitudes in the output spectrum must be normalized.
int	d_real_col
double	d_sampling
bool	d_shift_order
	Flag telling if the output frequencies must be shifted in order to have a zero-centered spectrum.

---

Constructor & Destructor Documentation

FFT::FFT	(	ApplicationWindow *	parent,
		Table *	t,
		const QString &	realColName,
		const QString &	imagColName = QString(),
		int	from = 1,
		int	to = -1
	)

FFT::FFT	(	ApplicationWindow *	parent,
		Graph *	g,
		const QString &	curveTitle
	)

FFT::FFT	(	ApplicationWindow *	parent,
		Graph *	g,
		const QString &	curveTitle,
		double	start,
		double	end
	)

---

Member Function Documentation

QString FFT::fftCurve

(

)

[private]

QString FFT::fftTable

(

)

[private]

void FFT::init

(

)

[private]

Reimplemented from Filter.

void FFT::normalizeAmplitudes

(

bool

norm = true

)

[inline]

void FFT::output

(

const QString &

text

)

[private]

void FFT::output

(

)

[private, virtual]

Performs the data analysis and takes care of the output.

Reimplemented from Filter.

bool FFT::setDataFromTable	(	Table *	t,
		const QString &	realColName,
		const QString &	imagColName = QString(),
		int	from = 0,
		int	to = -1
	)			[private, virtual]

Reimplemented from Filter.

void FFT::setInverseFFT

(

bool

inverse = true

)

[inline]

void FFT::setSampling

(

double

sampling

)

[inline]

void FFT::shiftFrequencies

(

bool

shift = true

)

[inline]

---

Member Data Documentation

int FFT::d_imag_col [private]

bool FFT::d_inverse [private]

Flag telling if an inverse FFT must be performed.

bool FFT::d_normalize [private]

Flag telling if the amplitudes in the output spectrum must be normalized.

int FFT::d_real_col [private]

double FFT::d_sampling [private]

bool FFT::d_shift_order [private]

Flag telling if the output frequencies must be shifted in order to have a zero-centered spectrum.

---

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

• qtiplot/src/FFT.h
• qtiplot/src/FFT.cpp

---