diva.sketch.features

Class SineInitAngleFE

java.lang.Object

diva.sketch.features.SineInitAngleFE

All Implemented Interfaces:

FeatureExtractor

public class SineInitAngleFE
extends Object
implements FeatureExtractor

SineInitAngleFE computes the sine of the initial angle of a stroke. The angle is determined by the first and the third mouse points.

Version:

$Revision: 1.9 $

Author:

Heloise Hse (hwawen@eecs.berkeley.edu)

Constructor Summary

Constructors

Constructor and Description
SineInitAngleFE()

Method Summary

Modifier and Type	Method and Description
double	apply(TimedStroke s) Return the sine of the initial angle of the stroke.
String	getName() Return the name of this feature extractor.
static double	sineInitAngle(TimedStroke s) Return the sine of the initial angle of the stroke.

Methods inherited from class java.lang.Object

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

Constructor Detail

SineInitAngleFE

public SineInitAngleFE()

Method Detail

apply

public double apply(TimedStroke s)

Return the sine of the initial angle of the stroke. The angle is determined by the first and the third mouse points. Return -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

sineInitAngle

public static double sineInitAngle(TimedStroke s)

Return the sine of the initial angle of the stroke. The angle is determined by the first and the third mouse points. Return -1 if there's only one data point.