diva.sketch.features

Class CosInitAngleFE

java.lang.Object

diva.sketch.features.CosInitAngleFE

All Implemented Interfaces:

FeatureExtractor

public class CosInitAngleFE
extends Object
implements FeatureExtractor

CosInitAngleFE computes the cosine of the initial angle of a stroke. The angle is determined from the first and third mouse point. Return -1 if there's only one data point. One of Rubine's features.

Version:

$Revision: 1.8 $

Author:

Heloise Hse (hwawen@eecs.berkeley.edu)

Constructor Summary

Constructors

Constructor and Description
CosInitAngleFE()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

CosInitAngleFE

public CosInitAngleFE()

Method Detail

apply

public double apply(TimedStroke s)

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

Specified by:

apply in interface FeatureExtractor

cosInitAngle

public static double cosInitAngle(TimedStroke s)

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

getName

public String getName()

Return the name of this feature extractor.

Specified by:

getName in interface FeatureExtractor