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coordinate-convert

v1.2.4

Published

地理坐标转换库

Downloads

12

Readme

coordinate-convert

地理坐标转换库,可以实现WGS84转GCJ02、GCJ02转BD009、BD09转GCJ02

说明

WGS84

GPS全球定位系统使用的坐标系统,GPS设备直接返回的坐标即为WGS84,另外Google地图使用的也是WGS84坐标

GCJ02

由中国国家测绘局制定的地理信息系统的坐标,国内出版的各种地图坐标系统(包括电子地图),必须至少采用GCJ02对WGS84进行首次加密。

BD09

百度在GCJ02的基础上进行的二次加密格式

安装

Node

npm install coordinate-convert

bower

bower install coordinate-convert

方法

wgs2gcj(lng, lat)

WGS84坐标转GCJ02坐标

参数

lng {number|Array}

经度值或经纬度数组

lat {number} 可选

纬度值

返回值 {Array}

转换后的经纬度数组

gcj2bd(lng, lat)

GCJ02坐标转百度BD09坐标

参数

lng {number|Array}

经度值或经纬度数组

lat {number} 可选

纬度值

返回值 {Array}

转换后的经纬度数组

bd2gcj(lng, lat)

百度DB09坐标转GCJ02坐标

参数

lng {number|Array}

经度值或经纬度数组

lat {number} 可选

纬度值

返回值 {Array}

转换后的经纬度数组

示例

var coord = CoordinateConvert.wgc2gcj(116.3997, 39.9158)