Package noaa.coastwatch.util

Class LongitudeFilter

java.lang.Object

noaa.coastwatch.util.LongitudeFilter

All Implemented Interfaces:

Filter

public class LongitudeFilter
extends Object
implements Filter

The longitude filter is a filter with special considerations for longitude values. In some cases, longitude values may cross the 180 to -180 boundary in a computation that requires data values to be continuous. The longitude filter detects a boundary crossing and adjusts the longitude values. Values which are less than 0 are shifted positive 360 degrees.

Since:

3.1.1

Author:

Peter Hollemans

Constructor Summary

Constructors

Constructor	Description
LongitudeFilter()

Method Summary

Modifier and Type	Method	Description
void	filter(double[] values)	Detects a longitude boundary crossing and adjusts the values if necessary.

Methods inherited from class java.lang.Object

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

Constructor Details

LongitudeFilter

public LongitudeFilter()

Method Details

filter

public void filter(double[] values)

Detects a longitude boundary crossing and adjusts the values if necessary. The assumption is that if the minimum and maximum longitudes differ by more than 180 degrees, then a boundary crossing has occurred.

Specified by:

filter in interface Filter

Parameters:

values - the longitude values for adjustment.