de.taimos.gpsd4java.backend

Class GISTool

java.lang.Object

de.taimos.gpsd4java.backend.GISTool

public final class GISTool
extends Object

This class provides tools to measure the distance between two locations in WGS84 coordinates

Author:

thoeger

Method Summary

Modifier and Type	Method and Description
static double	getDistance(double x1, double x2, double y1, double y2) calculates the distance between two locations, which are given as coordinates, in kilometers the method used is the great-circle-distance with hypersine formula
static double	getDistance(TPVObject tpv1, TPVObject tpv2) calculates the distance between two TPVObject in kilometers the method used is the great-circle-distance with hypersine formula

Methods inherited from class java.lang.Object

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

Method Detail

getDistance

public static double getDistance(TPVObject tpv1,
                                 TPVObject tpv2)

calculates the distance between two TPVObject in kilometers
the method used is the great-circle-distance with hypersine formula

Parameters:

tpv1 - - position 1

tpv2 - - position 2

Returns:

distance in kilometers

getDistance

public static double getDistance(double x1,
                                 double x2,
                                 double y1,
                                 double y2)

calculates the distance between two locations, which are given as coordinates, in kilometers
the method used is the great-circle-distance with hypersine formula

Parameters:

x1 - - longitude of position 1

x2 - - longitude of position 2

y1 - - latitude of position 1

y2 - - latitude of position 2

Returns:

distance in kilometers