Package org.locationtech.jts.geom

Class Coordinate.DimensionalComparator

java.lang.Object

org.locationtech.jts.geom.Coordinate.DimensionalComparator

All Implemented Interfaces:

java.util.Comparator<Coordinate>

Enclosing class:

Coordinate

public static class Coordinate.DimensionalComparator
extends java.lang.Object
implements java.util.Comparator<Coordinate>

Compares two Coordinates, allowing for either a 2-dimensional or 3-dimensional comparison, and handling NaN values correctly.

Constructor Summary

Constructors

Constructor	Description
DimensionalComparator()	Creates a comparator for 2 dimensional coordinates.
DimensionalComparator(int dimensionsToTest)	Creates a comparator for 2 or 3 dimensional coordinates, depending on the value provided.

Method Summary

Modifier and Type	Method	Description
static int	compare(double a, double b)	Compare two doubles, allowing for NaN values.
int	compare(Coordinate c1, Coordinate c2)	Compares two Coordinates along to the number of dimensions specified.

Methods inherited from interface java.util.Comparator

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Methods inherited from class java.lang.Object

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

Constructor Detail

DimensionalComparator

public DimensionalComparator()

Creates a comparator for 2 dimensional coordinates.

DimensionalComparator

public DimensionalComparator(int dimensionsToTest)

Creates a comparator for 2 or 3 dimensional coordinates, depending on the value provided.

Parameters:

dimensionsToTest - the number of dimensions to test

Method Detail

compare

public static int compare(double a,
                          double b)

Compare two doubles, allowing for NaN values. NaN is treated as being less than any valid number.

Parameters:

a - a double

b - a double

Returns:

-1, 0, or 1 depending on whether a is less than, equal to or greater than b

compare

public int compare(Coordinate c1,
                   Coordinate c2)

Compares two Coordinates along to the number of dimensions specified.

Specified by:

compare in interface java.util.Comparator<Coordinate>

Parameters:

o1 - a Coordinate

o2 - a {link Coordinate}

Returns:

-1, 0, or 1 depending on whether o1 is less than, equal to, or greater than 02