org.hiylo.components.commons.area

Class Gis

java.lang.Object

org.hiylo.components.commons.area.Gis

public class Gis
extends Object

地理信息工具类

Author:

hiylo

Constructor Summary

Constructors

Constructor and Description
Gis()

Method Summary

Modifier and Type	Method and Description
String	castToMysqlLine(String... lntlats) 通过点转换成mysql的Line 字符串用于插入mysql db
String	castToMysqlPoint(String lntlatStr) 通过点转换成mysql的POINT 字符串用于插入mysql db
String	castToMysqlPolygon(String... lntlats) 通过一个个的点转换成mysql的POLYGON 字符串用于插入mysql db
com.vividsolutions.jts.geom.Point	createPoint(double x, double y) 创建一个点
com.vividsolutions.jts.geom.Polygon	createPolygon(List<String> points) 将一系列点画成一个图形
static boolean	isPtInPoly(Point2D.Double point, List<Point2D.Double> pts) 判断点是否在多边形内

Methods inherited from class java.lang.Object

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

Constructor Detail

Gis

public Gis()

Method Detail

castToMysqlPolygon

public String castToMysqlPolygon(String... lntlats)

通过一个个的点转换成mysql的POLYGON 字符串用于插入mysql db

Parameters:

lntlats - 坐标点的数组 中间用","分隔

Returns:

转换之后的字符串

castToMysqlPoint

public String castToMysqlPoint(String lntlatStr)

通过点转换成mysql的POINT 字符串用于插入mysql db

Parameters:

lntlatStr - 坐标点 中间用","分隔

Returns:

转换之后的字符串

castToMysqlLine

public String castToMysqlLine(String... lntlats)

通过点转换成mysql的Line 字符串用于插入mysql db

Parameters:

lntlats - 坐标点 中间用","分隔

Returns:

转换之后的字符串

createPolygon

public com.vividsolutions.jts.geom.Polygon createPolygon(List<String> points)
                                                  throws com.vividsolutions.jts.io.ParseException

将一系列点画成一个图形

Parameters:

points - 点的列表

Returns:

点汇聚成的图形

Throws:

com.vividsolutions.jts.io.ParseException - 解析错误

createPoint

public com.vividsolutions.jts.geom.Point createPoint(double x,
                                                     double y)

创建一个点

Parameters:

x - x坐标

y - y坐标

Returns:

点

isPtInPoly

public static boolean isPtInPoly(Point2D.Double point,
                                 List<Point2D.Double> pts)

判断点是否在多边形内

Parameters:

point - 检测点

pts - 多边形的顶点

Returns:

点在多边形内返回true, 否则返回false