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.
Add this line to your application's Gemfile:
gem 'national_grid'
And then execute:
$ bundle
Or install it yourself as:
$ gem install national_grid
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>
FAQs
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We found that national_grid demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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