This is a ruby port of Mapbox's polylabel algorithm.
- Original repo: https://github.com/mapbox/polylabel
- Blog post: https://www.mapbox.com/blog/polygon-center/
Add this line to your application's Gemfile:
gem "ruby-polylabel"And then execute:
$ bundle install
Or install it yourself as:
$ gem install ruby-polylabel
require "polylabel"
Polylabel.compute([[[0, 0], [1, 0], [2, 0], [0, 0]]]) # => {:x=>0, :y=>0, :distance=>0}
Polylabel.compute([[[0, 0], [1, 0], [1, 1], [0, 1], [0, 0]]]) # => {:x=>0.5, :y=>0.5, :distance=>0.5}After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.
Bug reports and pull requests are welcome on GitHub at https://github.com/fredplante/ruby-polylabel.
The gem is available as open source under the terms of the MIT License.