lejos.robotics.filter

Class SampleBuffer

java.lang.Object

lejos.robotics.filter.AbstractFilter

lejos.robotics.filter.SampleBuffer

All Implemented Interfaces:

SampleProvider

Direct Known Subclasses:

MaximumFilter, MedianFilter, MinimumFilter, SumFilter.PlainSum, SumFilter.SmartSum

public abstract class SampleBuffer
extends AbstractFilter

Provides a buffer to store samples

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	actualSize
(package private) int	bufferSize
(package private) int	currentPos
(package private) float[]	sampleBuffer

Fields inherited from class lejos.robotics.filter.AbstractFilter

sampleSize, source

Constructor Summary

Constructors

Constructor and Description
SampleBuffer(SampleProvider source, int bufferSize)

Method Summary

Modifier and Type	Method and Description
void	fetchSample(float[] sample, int off) Fetches a sample from a sensors or filter.
protected int	getActualSize()
int	getBufferSize()
protected void	getOldest(float[] sample, int off)
private void	reset() Empties the sample buffer
(package private) int	toPos(int i, int index)

Methods inherited from class lejos.robotics.filter.AbstractFilter

sampleSize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

bufferSize

int bufferSize

actualSize

int actualSize

currentPos

int currentPos

sampleBuffer

float[] sampleBuffer

Constructor Detail

SampleBuffer

public SampleBuffer(SampleProvider source,
                    int bufferSize)

Method Detail

getBufferSize

public int getBufferSize()

reset

private void reset()

Empties the sample buffer

toPos

int toPos(int i,
          int index)

fetchSample

public void fetchSample(float[] sample,
                        int off)

Description copied from interface: SampleProvider

Fetches a sample from a sensors or filter.

Specified by:

fetchSample in interface SampleProvider

Overrides:

fetchSample in class AbstractFilter

Parameters:

sample - The array to store the sample in.

off - The elements of the sample are stored in the array starting at the offset position.

getOldest

protected void getOldest(float[] sample,
                         int off)

getActualSize

protected int getActualSize()