DISPLIB::TFplot Class Reference

Time-frequency spectrogram QWidget rendering an Eigen matrix as a colour image. More...

#include <tfplot.h>

Public Types
typedef QSharedPointer< TFplot >	SPtr
typedef QSharedPointer< const TFplot >	ConstSPtr

Public Member Functions
	TFplot (Eigen::MatrixXd tf_matrix, qreal sample_rate, qreal lower_frq, qreal upper_frq, ColorMaps cmap)
	TFplot (Eigen::MatrixXd tf_matrix, qreal sample_rate, ColorMaps cmap)

Protected Member Functions
void	calc_plot (Eigen::MatrixXd tf_matrix, qreal sample_rate, ColorMaps cmap, qreal lower_frq, qreal upper_frq)
virtual void	resizeEvent (QResizeEvent *event)

Detailed Description

Time-frequency spectrogram QWidget rendering an Eigen matrix as a colour image.

Two constructors accept either a full or a frequency-cropped MatrixXd spectrogram together with a sample rate and a DISPLIB::ColorMaps "ColorMaps" enum entry; calc_plot() builds the cached QImage that subsequent paintEvents draw.

Definition at line 82 of file tfplot.h.

Inheritance diagram for DISPLIB::TFplot:

Member Typedef Documentation

ConstSPtr

typedef QSharedPointer<const TFplot> DISPLIB::TFplot::ConstSPtr

Const shared pointer type for TFplot class.

Definition at line 88 of file tfplot.h.

SPtr

typedef QSharedPointer<TFplot> DISPLIB::TFplot::SPtr

Shared pointer type for TFplot class.

Definition at line 87 of file tfplot.h.

Constructor & Destructor Documentation

TFplot() [1/2]

TFplot::TFplot	(	Eigen::MatrixXd	tf_matrix,
		qreal	sample_rate,
		qreal	lower_frq,
		qreal	upper_frq,
		ColorMaps	cmap = Jet )

Constructs TFplot class

Parameters

[in]	tf_matrix	given spectrogram.
[in]	sample_rate	given sample rate of signal related to th spectrogram.
[in]	lower_frq	lower bound frequency, that should be plotted.
[in]	upper_frq	upper bound frequency, that should be plotted.
[in]	cmap	colormap used to plot the spectrogram.

Definition at line 46 of file tfplot.cpp.

TFplot() [2/2]

TFplot::TFplot	(	Eigen::MatrixXd	tf_matrix,
		qreal	sample_rate,
		ColorMaps	cmap = Jet )

Constructs TFplot class

Parameters

[in]	tf_matrix	given spectrogram.
[in]	sample_rate	given sample rate of signal related to th spectrogram.
[in]	cmap	colormap used to plot the spectrogram.

Definition at line 85 of file tfplot.cpp.

Member Function Documentation

calc_plot()

void TFplot::calc_plot ( Eigen::MatrixXd tf_matrix, qreal sample_rate, ColorMaps cmap, qreal lower_frq = 0, qreal upper_frq = 0 )

protected

Calculates a image to plot the tf_matrix

Parameters

[in]	tf_matrix	given spectrogram.
[in]	sample_rate	given sample rate of signal related to th spectrogram.
[in]	cmap	colormap used to plot the spectrogram.
[in]	lower_frq	lower bound frequency, that should be plotted.
[in]	upper_frq	upper bound frequency, that should be plotted.

Definition at line 94 of file tfplot.cpp.

resizeEvent()

void TFplot::resizeEvent ( QResizeEvent * event )

protectedvirtual

Definition at line 284 of file tfplot.cpp.

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

• src/libraries/disp/plots/tfplot.h
• src/libraries/disp/plots/tfplot.cpp