diva.sketch.features

Class SumOfAnglesFE

java.lang.Object

diva.sketch.features.SumOfAnglesFE

All Implemented Interfaces:

FeatureExtractor

public class SumOfAnglesFE
extends Object
implements FeatureExtractor

SumOfAnglesFE computes the total angle traversed by a stroke. This is done by calculating the angles formed by every three consecutive points in the path and summing them up. One of Rubine's features.

Version:

$Revision: 1.9 $

Author:

Heloise Hse (hwawen@eecs.berkeley.edu)

Constructor Summary

Constructors

Constructor and Description
SumOfAnglesFE()

Method Summary

Modifier and Type	Method and Description
double	apply(TimedStroke s) Compute the total angle traversed by the stroke.
String	getName() Return the name of this feature extractor.
static double	sumOfAngles(TimedStroke s) Compute the total angle traversed by the stroke.

Methods inherited from class java.lang.Object

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

Constructor Detail

SumOfAnglesFE

public SumOfAnglesFE()

Method Detail

apply

public double apply(TimedStroke s)

Compute the total angle traversed by the stroke. This is done by calculating the angles formed by every three consecutive points in the path and summing them up. Return -1 is there are less than 3 points.

Specified by:

apply in interface FeatureExtractor

getName

public String getName()

Return the name of this feature extractor.

Specified by:

getName in interface FeatureExtractor

sumOfAngles

public static double sumOfAngles(TimedStroke s)

Compute the total angle traversed by the stroke. This is done by calculating the angles formed by every three consecutive points in the path and summing them up. Return -1 is there are less than 3 points.