lejos.robotics.filter

Class SumFilter

java.lang.Object

lejos.robotics.filter.AbstractFilter

lejos.robotics.filter.SumFilter

All Implemented Interfaces:

SampleProvider

Direct Known Subclasses:

MeanFilter

public class SumFilter
extends AbstractFilter

This filter returns the sum of the N most recent samples.
The number of samples used is specified in the constructor of the filter.

Author:

Aswin

Field Summary

Fields inherited from class lejos.robotics.filter.AbstractFilter

sampleSize, source

Constructor Summary

Constructors

Constructor and Description
SumFilter(SampleProvider source, int length)

Method Summary

Modifier and Type	Method and Description
void	fetchSample(float[] sample, int offset) Fetches a sample from a sensor or filter.
protected int	getActualSize()

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

Constructor Detail

SumFilter

public SumFilter(SampleProvider source,
                 int length)

Method Detail

fetchSample

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

Description copied from interface: SampleProvider

Fetches a sample from a sensor or filter.

Specified by:

fetchSample in interface SampleProvider

Overrides:

fetchSample in class AbstractFilter

Parameters:

sample - The array to store the sample in.

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

getActualSize

protected int getActualSize()