net.ymate.platform.commons.util

Class GeoUtils

java.lang.Object

net.ymate.platform.commons.util.GeoUtils

public class GeoUtils
extends Object

Author:

刘镇 (suninformation@163.com) on 2016/12/12 15:27

Field Summary

Fields

Modifier and Type	Field and Description
static double	EARTH_RADIUS 地球半径
static double	EE

Constructor Summary

Constructors

Constructor and Description
GeoUtils()

Method Summary

Modifier and Type	Method and Description
static int	contains(GeoCircle circle, GeoPoint point) 判断点是否在圆形范围内
static boolean	contains(GeoPolygon polygon, GeoPoint point) 判断点是否在多边形区域内
static boolean	contains(GeoPolygon polygon, GeoPoint point, boolean on)
static double	distance(GeoPoint p1, GeoPoint p2)
static double	rad(double d)
static GeoBound	rectangle(GeoPoint point, long distance)

Methods inherited from class java.lang.Object

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

Field Detail

EARTH_RADIUS

public static final double EARTH_RADIUS

地球半径

See Also:

Constant Field Values

EE

public static final double EE

See Also:

Constant Field Values

Constructor Detail

GeoUtils

public GeoUtils()

Method Detail

rad

public static double rad(double d)

Parameters:

d - 值

Returns:

弧度单位

distance

public static double distance(GeoPoint p1,
                              GeoPoint p2)

Parameters:

p1 - 坐标点1

p2 - 坐标点2

Returns:

计算两点间的距离(米)

rectangle

public static GeoBound rectangle(GeoPoint point,
                                 long distance)

Parameters:

point - 坐标点

distance - 距离(米)

Returns:

返回从坐标点到指定距离的矩形范围

contains

public static boolean contains(GeoPolygon polygon,
                               GeoPoint point)

判断点是否在多边形区域内

Parameters:

polygon - 多边形区域

point - 待判断点

Returns:

true - 多边形包含这个点, false - 多边形未包含这个点。

contains

public static boolean contains(GeoPolygon polygon,
                               GeoPoint point,
                               boolean on)

contains

public static int contains(GeoCircle circle,
                           GeoPoint point)

判断点是否在圆形范围内

Parameters:

circle - 圆形区域

point - 待判断点

Returns:

-1 - 点在圆外, 0 - 点在圆上, 1 - 点在圆内