org.geolatte.geom

Class ExactCoordinatePointEquality

java.lang.Object

org.geolatte.geom.ExactCoordinatePointEquality

All Implemented Interfaces:

PointEquality

public class ExactCoordinatePointEquality
extends Object

A PointEquality implementation that considers two Points to be equal if and only if the have the same coordinates. Optionally, the coordinates considered in the test can be limited to specified dimensions.

Author:

Karel Maesen, Geovise BVBA creation-date: 4/13/12

Constructor Summary

Constructors

Constructor and Description
ExactCoordinatePointEquality() Creates an instance that takes all coordinate values into account.
ExactCoordinatePointEquality(DimensionalFlag dimensionalFlag) Creates an instance that takes only the coordinates into account specified in the dimensionalFlag.

Method Summary

Modifier and Type	Method and Description
boolean	equals(double[] first, DimensionalFlag df1, double[] second, DimensionalFlag df2) Tests whether the specified coordinates represent the same point.
protected boolean	equals(double co1, double co2)
boolean	equals(Point first, Point second) Tests whether the specified Points are equal.
protected double	get(double[] coordinates, int index)
protected DimensionalFlag	getDimensionalFlag()

Methods inherited from class java.lang.Object

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

Constructor Detail

ExactCoordinatePointEquality

public ExactCoordinatePointEquality(DimensionalFlag dimensionalFlag)

Creates an instance that takes only the coordinates into account specified in the dimensionalFlag.

Parameters:

dimensionalFlag - specifies the dimensions that are considered in the equality test

ExactCoordinatePointEquality

public ExactCoordinatePointEquality()

Creates an instance that takes all coordinate values into account.

Method Detail

equals

protected boolean equals(double co1,
                         double co2)

equals

public boolean equals(Point first,
                      Point second)

Tests whether the specified Points are equal.

Specified by:

equals in interface PointEquality

Parameters:

first - first Point

second - second Point

Returns:

true iff the first is equal to the second Point.

equals

public boolean equals(double[] first,
                      DimensionalFlag df1,
                      double[] second,
                      DimensionalFlag df2)

Tests whether the specified coordinates represent the same point.

The coordinates are assumed to be in the same Coordinate Reference System.

Specified by:

equals in interface PointEquality

Parameters:

first - the coordinates of the first Point

df1 - the DimensionalFlag for the first coordinate array

second - the coordinates second Point to test

df2 - the DimensionalFlag for the second coordinate array

Returns:

true iff the Points represented by the coordinates are equal

get

protected double get(double[] coordinates,
                     int index)

getDimensionalFlag

protected DimensionalFlag getDimensionalFlag()