Graphviz FFI
Ruby bindings for libcgraph and libgvc (Graphviz) using FFI.
Installation
Add this line to your application's Gemfile:
gem 'gv'
And then execute:
$ bundle
Or install it yourself as:
$ gem install gv
Usage
Create new graph:
require 'gv'
graph = GV::Graph.open 'g'
graph.edge 'e', graph.node('A'), graph.node('B', shape: 'polygon', label: graph.html('<b>bold</b>'))
# render to string
graph.render 'png'
# or to a file
graph.write 'result.png'
Result
Load existing graph from .dot
file:
require 'gv'
graph = GV::Graph.load File.open('g.dot')
# render graph
graph.render
See the documentation for details.
Contributing
- Fork it ( https://github.com/furunkel/gv/fork )
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Add some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create a new Pull Request