de.alpharogroup.address.book.application.geocoding

Class GeoLocationService

java.lang.Object

de.alpharogroup.address.book.application.geocoding.GeoLocationService

public class GeoLocationService
extends Object

The Class GeoLocationService is inspired from the internet (http://xebee.xebia.in/2010/10/28/working-with-geolocations/). Extracted comment from this blog: ************************************************************************ Karthick, on February 7th, 2011 at 7:47 am Said: Excellent, explanation/code. Perfectly matches what I was looking for. Thanks for the blog entry. Whats the license in which the code is released? It is free to use? Thanks, Karhtick Robin Nagpal, on February 9th, 2011 at 8:51 am Said: Yes, code is free to use ;) ************************************************************************

Author:

Robin Nagpal

Field Summary

Fields

Modifier and Type	Field and Description
static double	DIAMETER_OF_EARTH

Constructor Summary

Constructors

Constructor and Description
GeoLocationService()

Method Summary

Modifier and Type	Method and Description
static double	degreesToRadians(double degrees) Converts the given value from degrees to radians.
static double	getDistanceBetweenPoints(de.alpharogroup.jgeohash.Point p1, de.alpharogroup.jgeohash.Point p2, String unit) Returns the distance between tow points.
static double	getExtremeLatitudesDiffForPoint(de.alpharogroup.jgeohash.Point p1, double distance) Returns the difference in degrees of latitude corresponding to the distance from the center point.
static double	getExtremeLongitudesDiffForPoint(de.alpharogroup.jgeohash.Point p1, double distance) Returns the difference in degrees of longitude corresponding to the distance from the center point.
static de.alpharogroup.jgeohash.Point[]	getExtremePointsFrom(de.alpharogroup.jgeohash.Point point, Double distance) Returns an array of two extreme points corresponding to center point and the distance from the center point.
static void	main(String[] args) The main method.
static double	radiansToDegrees(double radians) Converts the given value radians to degrees.

Methods inherited from class java.lang.Object

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

Field Detail

DIAMETER_OF_EARTH

public static final double DIAMETER_OF_EARTH

See Also:

Constant Field Values

Constructor Detail

GeoLocationService

public GeoLocationService()

Method Detail

degreesToRadians

public static double degreesToRadians(double degrees)

Converts the given value from degrees to radians.

Parameters:

degrees - the degrees

Returns:

value in radians

getDistanceBetweenPoints

public static double getDistanceBetweenPoints(de.alpharogroup.jgeohash.Point p1,
                                              de.alpharogroup.jgeohash.Point p2,
                                              String unit)

Returns the distance between tow points.

Parameters:

p1 - the p1

p2 - the p2

unit - the unit

Returns:

the distance between points

getExtremeLatitudesDiffForPoint

public static double getExtremeLatitudesDiffForPoint(de.alpharogroup.jgeohash.Point p1,
                                                     double distance)

Returns the difference in degrees of latitude corresponding to the distance from the center point. This distance can be used to find the extreme points.

Parameters:

p1 - the p1

distance - the distance

Returns:

the extreme latitudes diff for point

getExtremeLongitudesDiffForPoint

public static double getExtremeLongitudesDiffForPoint(de.alpharogroup.jgeohash.Point p1,
                                                      double distance)

Returns the difference in degrees of longitude corresponding to the distance from the center point. This distance can be used to find the extreme points.

Parameters:

p1 - the p1

distance - the distance

Returns:

the extreme longitudes diff for point

getExtremePointsFrom

public static de.alpharogroup.jgeohash.Point[] getExtremePointsFrom(de.alpharogroup.jgeohash.Point point,
                                                                    Double distance)

Returns an array of two extreme points corresponding to center point and the distance from the center point. These extreme points are the points with max/min latitude and longitude.

Parameters:

point - the point

distance - the distance

Returns:

the extreme points from

main

public static void main(String[] args)

The main method.

Parameters:

args - the arguments

radiansToDegrees

public static double radiansToDegrees(double radians)

Converts the given value radians to degrees.

Parameters:

radians - the radians

Returns:

value in degrees