diva.sketch.features

Class SineFirstLastPtsFE

java.lang.Object

diva.sketch.features.SineFirstLastPtsFE

All Implemented Interfaces:

FeatureExtractor

public class SineFirstLastPtsFE
extends Object
implements FeatureExtractor

SineFirstLastPtsFE computes the sine of the angle between the first and the last points of a stroke. One of Rubine's features.

Version:

$Revision: 1.9 $

Author:

Heloise Hse (hwawen@eecs.berkeley.edu)

Constructor Summary

Constructors

Constructor and Description
SineFirstLastPtsFE()

Method Summary

Modifier and Type	Method and Description
double	apply(TimedStroke s) Return the sine of the angle between the first and the last points of the stroke.
String	getName() Return the name of this feature extractor.
static double	sineFirstLast(TimedStroke s) Return the sine of the angle between the first and the last points of the stroke.

Methods inherited from class java.lang.Object

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

Constructor Detail

SineFirstLastPtsFE

public SineFirstLastPtsFE()

Method Detail

apply

public double apply(TimedStroke s)

Return the sine of the angle between the first and the last points of the stroke. Returns -1 if there's only one data point.

Specified by:

apply in interface FeatureExtractor

getName

public String getName()

Return the name of this feature extractor.

Specified by:

getName in interface FeatureExtractor

sineFirstLast

public static double sineFirstLast(TimedStroke s)

Return the sine of the angle between the first and the last points of the stroke. Returns -1 if there's only one data point.