hmi.neurophysics
Class FittsLaw

java.lang.Object
  hmi.neurophysics.FittsLaw

public final class FittsLaw
extends Object

Author:

welberge Fitts' Law
Fitts' law predicts the time required to move from a certain start point to a target area. It is used to model rapid, aimed pointing actions.

Constructor Summary

private

FittsLaw()

Method Summary

static double

getTime(double a, double b, double D, double W, double H) Get the time needed for a 3d pointing action, using a variation on Fitts' Law: ID=log2(D/min(W,H)+1) T=a+b*ID

Methods inherited from class java.lang.Object

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

Constructor Detail

FittsLaw

private FittsLaw()

Method Detail

getTime

public static double getTime(double a,
                             double b,
                             double D,
                             double W,
                             double H)

Get the time needed for a 3d pointing action, using a variation on Fitts' Law:
ID=log2(D/min(W,H)+1)
T=a+b*ID

Parameters:

a - emperically determined constant

b - emperically determined constant

D - pointing distance

W - width of the area to point to

H - height of the area to point to

Returns:

the time needed to point