Adaptive speed-based low-pass filter (the 1-euro filter) for smoothing noisy pointer signals such as the Wii U IR pointer. More...

Public Member Functions
	OneEuroFilter (float minCutoff=1.0f, float beta=0.0f, float dCutoff=1.0f)

float	filter (float value, float dt)

void	reset ()
	Forgets all history; the next filter() call returns its input unchanged.

void	setParams (float newMinCutoff, float newBeta, float newDCutoff=1.0f)
	Changes the filter parameters without resetting its state; see the constructor for their meaning.

Detailed Description

Adaptive speed-based low-pass filter (the 1-euro filter) for smoothing noisy pointer signals such as the Wii U IR pointer.

Definition at line 65 of file OneEuroFilter.h.

Constructor & Destructor Documentation

OneEuroFilter::OneEuroFilter	(	float	minCutoff = 1.0f,
		float	beta = 0.0f,
		float	dCutoff = 1.0f )

inline

Parameters

minCutoff	Cutoff frequency in Hz when the signal is at rest (lower = smoother, more lag)
beta	How much the cutoff rises with signal speed (higher = snappier during fast motion)
dCutoff	Cutoff frequency in Hz for the speed estimate; rarely needs changing

Definition at line 70 of file OneEuroFilter.h.

float OneEuroFilter::filter	(	float	value,
		float	dt )

inline

Parameters

value	Raw noisy sample
dt	Seconds since the previous call (must be > 0; non-positive values are treated as 1/60 s)

Definition at line 76 of file OneEuroFilter.h.

void OneEuroFilter::reset ( )

inline

Forgets all history; the next filter() call returns its input unchanged.

Definition at line 99 of file OneEuroFilter.h.

void OneEuroFilter::setParams	(	float	newMinCutoff,
		float	newBeta,
		float	newDCutoff = 1.0f )

inline

Changes the filter parameters without resetting its state; see the constructor for their meaning.

Definition at line 106 of file OneEuroFilter.h.

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

libgui 2.01 libgui is a GUI library for the GameCube, Wii, and Wii U