Project

national_grid

0.0
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Converts between Ordnance Survey National Grid easting-northing coordinates and GPS latitude-longitude coordinates
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 Popularity
Downloads
11,098
Stars
0
Forks
3
Watchers
2
 Releases
Current version
0.2.0
Total releases
4
First release
2014-04-06
Latest release
2014-04-26
 Issues
Open Issues
1
Closed Issues
0
Total Issues
1
Issue Closure Rate
0%
 Pull Requests
Open Pull Requests
0
Closed Pull Requests
1
Merged Pull Requests
0
Pull Request Acceptance Rate
0%
 Development
Primary Language
Ruby
Licenses
MIT
Average date of last 50 commits
2014-04-21
Reverse Dependencies
0

 Dependencies

Development

bundler
~> 1.5
minitest
~> 5.3
rake
>= 0
rake-compiler
>= 0
 Project Readme

NationalGrid

NationalGrid is a Ruby binding to OSTN02C, which converts between National Grid easting-northing coordinates (OSGB36) and GPS latitude-longitude coordinates (ETRS89) using the OSTN02 transformation.

Installation

Add this line to your application's Gemfile:

gem 'national_grid'

And then execute:

$ bundle

Or install it yourself as:

$ gem install national_grid

Usage

require "national_grid"

NationalGrid::EastingNorthing.new(362269.979, 169978.688, 54.467).to_latitude_longitude
# => #<NationalGrid::LatitudeLongitude:0x3ff8f955f0b4 latitude=51.427547 longitude=-2.544076 elevation=104.018>

NationalGrid::LatitudeLongitude.new(53.779110, -3.040455, 64.940).to_easting_northing
# => #<NationalGrid::EastingNorthing:0x3ff8f995f04c easting=331534.545 northing=431920.763 elevation=12.636>