Gazebo Math

API Reference

8.0.0

A one-pole DSP filter. More...

#include <gz/math/Filter.hh>

Public Member Functions
	OnePole ()=default
	Constructor.

	OnePole (double _fc, double _fs)
	Constructor.

virtual void	Fc (double _fc, double _fs) override
	Set the cutoff frequency and sample rate.

const T &	Process (const T &_x)
	Update the filter's output.

Public Member Functions inherited from Filter< T >
virtual	~Filter ()
	Destructor.

virtual void	Set (const T &_val)
	Set the output of the filter.

virtual const T &	Value () const
	Get the output of the filter.

Protected Attributes
double	a0 = 0
	Input gain control.

double	b1 = 0
	Gain of the feedback.

Protected Attributes inherited from Filter< T >
T	y0 {}
	Output.

Detailed Description

template<class T>
class gz::math::OnePole< T >

A one-pole DSP filter.

See also: http://www.earlevel.com/main/2012/12/15/a-one-pole-filter/

Constructor & Destructor Documentation

◆ OnePole() [1/2]

template<class T >

OnePole ( )

default

Constructor.

◆ OnePole() [2/2]

template<class T >

OnePole	(	double	_fc,
		double	_fs
	)

inline

Constructor.

Parameters

[in]	_fc	Cutoff frequency.
[in]	_fs	Sample rate.

References OnePole< T >::Fc().

Member Function Documentation

◆ Fc()

template<class T >

virtual void Fc	(	double	_fc,
		double	_fs
	)

inlineoverridevirtual

Set the cutoff frequency and sample rate.

Parameters

[in]	_fc	Cutoff frequency.
[in]	_fs	Sample rate.

Implements Filter< T >.

References OnePole< T >::a0, OnePole< T >::b1, and GZ_PI.

Referenced by OnePole< T >::OnePole().

◆ Process()

template<class T >

const T & Process ( const T & _x )

inline

Update the filter's output.

Parameters

[in] _x Input value.

Returns: The filter's current output.

References OnePole< T >::a0, OnePole< T >::b1, and Filter< T >::y0.

Member Data Documentation

◆ a0

template<class T >

double a0 = 0

protected

Input gain control.

Referenced by OnePole< T >::Fc(), and OnePole< T >::Process().

◆ b1

template<class T >

double b1 = 0

protected

Gain of the feedback.

Referenced by OnePole< T >::Fc(), and OnePole< T >::Process().

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

Filter.hh