To determine a coordinate is in mars in China (GCJ-02)
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Updated
Sep 20, 2016 - Objective-C
To determine a coordinate is in mars in China (GCJ-02)
A simple Math coordinate system on Android. 绘制坐标轴 函数图像
Astronomical space coordinate and time conversion. Calculate Julian day, local sidereal time and ecliptic obliquity with great precision.
坐标转换,包括 * 各地图API坐标系统比较与转换; * WGS84坐标系:即地球坐标系,国际上通用的坐标系。设备一般包含GPS芯片或者北斗芯片获取的经纬度为WGS84地理坐标系, * 谷歌地图采用的是WGS84地理坐标系(中国范围除外); * GCJ02坐标系:即火星坐标系,是由中国国家测绘局制订的地理信息系统的坐标系统。由WGS84坐标系经加密后的坐标系。 * 谷歌中国地图和搜搜中国地图采用的是GCJ02地理坐标系; BD09坐标系:即百度坐标系,GCJ02坐标系经加密后的坐标系; * 搜狗坐标系、图吧坐标系等,估计也是在GCJ02基础上加密而成的。
SphericalMercator in Swift implementation from original JS implementation at https://github.com/mapbox/sphericalmercator/blob/master/sphericalmercator.js
Repositorio para publicar programas Open source
各坐标系简介与转换。包括WGS84(地球坐标系)、GCJ02(火星坐标系)和BD09(百度坐标系)
This PDFBox wrapper that can be used for extracting text and text co-ordinates from a printed PDF doc (no OCR)
Show Player Coordinates Plugin for PocketMine-MP
Python script that converts SWEREF99 coordinates to WSG84 (what you probably know as normal coordinates)
A playground for Coordinate transformations.
coordinates of the mouse relative to the block on which the mouse moves.
A collection of libraries to convert between Latitude / Longitude and map grid references, particularly the Ordinance Survey National Grid
Demo of Coordinator design pattern.
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