visad.data.in
Class LonArithProg

java.lang.Object
  visad.data.in.ArithProg
      visad.data.in.LonArithProg

public final class LonArithProg
extends ArithProg

Provides support for determining if a sequence of values is an arithmetic progression of longitude values and, if so, the progression parameters.

Author:

Steven R. Emmerson

Field Summary

Fields inherited from class visad.data.in.ArithProg

dEps, fEps, first, isConsistent, last, meanDel, n

Constructor Summary

LonArithProg()

Method Summary

boolean	accumulate(double[] values) Accumulates a set of doubles.
boolean	accumulate(float[] values) Accumulates a set of floats.
static void	main(String[] args) Tests this class.

Methods inherited from class visad.data.in.ArithProg

accumulate, accumulate, getCommonDifference, getFirst, getLast, getNumber, isConsistent

Methods inherited from class java.lang.Object

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

Constructor Detail

LonArithProg

public LonArithProg()

Method Detail

accumulate

public boolean accumulate(float[] values)
                   throws VisADException

Accumulates a set of floats. Indicates whether or not the sequence is consistent with the arithmetic progression so far.

Overrides:

accumulate in class ArithProg

Parameters:

values - The values to accumulate.

Returns:

False if the difference between any current and previous value normalized by the current increment differs from unity by more than the nearness threshold; otherwise, true.

Throws:

VisADException - ArithProg.isConsistent() was false before this method was invoked.

Precondition:

isConsistent() is true.

Postcondition:

A subsequent getNumber() will return values.length more than previously if the function returns true., A subsequent getLast() will return the value argument if the function returns true.

accumulate

public boolean accumulate(double[] values)
                   throws VisADException

Accumulates a set of doubles. Indicates whether or not the sequence is consistent with the arithmetic progression so far.

Overrides:

accumulate in class ArithProg

Parameters:

values - The values to accumulate.

Returns:

False if the difference between any current and previous value normalized by the current increment differs from unity by more than the nearness threshold; otherwise, true.

Throws:

VisADException - ArithProg.isConsistent() was false before this method was invoked.

Precondition:

isConsistent() is true.

Postcondition:

A subsequent getNumber() will return values.length more than previously if the function returns true., A subsequent getLast() will return the value argument if the function returns true.

main

public static void main(String[] args)
                 throws Exception

Tests this class.

Parameters:

args - Runtime arguments. Ignored.

Throws:

Exception - Something went wrong.