usng.js

A version of usngs.js with bug fixes, enhancements, and extensive unit tests.

USNG (U.S. National Grid) MGRS (Military Grid Reference System)

Features

• Convert Lat/Lon bounding box to closest USNG
• Convert Lat/Lon to UTM/UPS
• Convert Lat/Lon point to USNG
• Convert UTM/UPS to Lat/Lon
• Convert USNG to UTM
• Convert USNG to Lat/Lon
• Convert Lat/Lon to MGRS

Usage

Example usage of this file with Cesium and OpenLayers can be found within https://github.com/codice/ddf

 var usng = require('usng.js');
 
 var converter = new usng.Converter();
 
 
 var usngCoord = converter.LLBboxtoUSNG(north, south, east, west);
 
 var utmCoord = converter.LLtoUTM(lat, lon, utmcoords, zone);

 var utmUpsCoord = converter.LLtoUTMUPS(lat, lon)
 
 var usngCoord = converter.LLtoUSNG(lat, lon, precision);
 
 var llCoord = converter.UTMtoLL(UTMNorthing, UTMEasting, UTMZoneNumber, accuracy);

 llCoord = converter.UTMUPStoLL("Z 2222222 2222222")
 llCoord = converter.UTMUPStoLL("10 1234567 6543210")
 llCoord = converter.UTMUPStoLL({northPole, zoneNumber, easting, northing})
 
 var utmCoord = converter.USNGtoUTM(zone,letter,sq1,sq2,east,north,ret);
 
 var llCoord = converter.USNGtoLL(usngStr_input, getCenter);
 
 var mgrsCoord = converter.LLtoMGRS(lat, lon, precision);

CLI Test Tool Usage

Note: This is not for production use

Run with: usng-cli [function] [params]

In development you will need to run npm link first.

Development

Build with: npm run build Format with: npm run format