sjm.utensil
Class LimitingLinearCalculator

java.lang.Object
  |
  +--sjm.utensil.LinearCalculator
        |
        +--sjm.utensil.LimitingLinearCalculator

public class LimitingLinearCalculator

extends LinearCalculator

A LimitingLinearCalculator is a LinearCalculator where the data points given in the constructor limit the extrapoltation. The X value of a LimitingLinearCalculator will never be below the minimum of xFrom and xTo, and will never be above the maximum of these two.

Version:

1.0

Author:

Steven J. Metsker

Fields inherited from class sjm.utensil.LinearCalculator

xFrom, xTo, yFrom, yTo

Constructor Summary

LimitingLinearCalculator(double xFrom, double xTo, double yFrom, double yTo)
Create a LimitingLinearCalculator from known points on two scales.

Method Summary

double	calculateXforGivenY(double y) Return the value on the first scale, corresponding to the given value on the second scale.
double	calculateYforGivenX(double x) Return the value on the second scale, corresponding to the given value on the first scale.

Methods inherited from class sjm.utensil.LinearCalculator

main, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

LimitingLinearCalculator

public LimitingLinearCalculator(double xFrom,
                                double xTo,
                                double yFrom,
                                double yTo)

Create a LimitingLinearCalculator from known points on two scales.

Parameters:

double - xFrom

double - xTo

double - yFrom

double - yTo

Method Detail

calculateXforGivenY

public double calculateXforGivenY(double y)

Return the value on the first scale, corresponding to the given value on the second scale. Limit the X value to be between xFrom and xTo.

Overrides:

calculateXforGivenY in class LinearCalculator

Returns:

the value on the first scale, corresponding to the given value on the second scale

calculateYforGivenX

public double calculateYforGivenX(double x)

Return the value on the second scale, corresponding to the given value on the first scale. Limit the Y value to be between yFrom and yTo.

Overrides:

calculateYforGivenX in class LinearCalculator

Returns:

the value on the second scale, corresponding to the given value on the first scale