Calculate the geographic center of given GPS coordinates.

A Javascript library that transform coordinates between WGS84, GCJ02 and BD09

Command line tool that gets a geojson with Lambert93 coded points, and transform them into WGS84 which is more standard (GPS)

Web Application for calculating transition parameters from local coordinate systems to WGS84 with geodetic accuracy for geodesy and GIS

Convert easily between ITM (Israel Transverse Mercator) coordinates to WGS84 (World geodetic system) and vice versa.

A Zero dependency ITM to WGS84 coordinates converter

Bidirectional UTM-WGS84 converter for JavaScript.

JTSK to WGS84 converter

Faster WebGL 3D graphics starter kit for IoT project

A demo, helps you to fix the special spatial transform with the `GCJ02` CRS

A machine-readable index of all EPSG coordinate systems.

For batch conversion of RT 90 and SWEREF 99 coords to and from WGS84 lat, lng

A simple converter for the dutch coordinate system to the generic WGS84 GPS coordinates

Zero dependency library to provide some basic geo functions

Libraries of geodesy functions implemented in JavaScript

Svenska orter i CSV och JSON med koordinater. Swedish cities in CSV and JSON format with lat/long coordinates.

地球坐标系 (WGS-84)转火星坐标系 (GCJ-02)地图纠偏算法Javascript版