Squid

Squid helps you write Ruby code to draw graphs in PDF files.

The source code is available on
GitHub and the documentation on
RubyDoc.

Quickstart

Prawn is a great Ruby library to generate PDF files but
lacks high-level components to draw graphs.

Squid adds a single method chart(data = {}, options = {}) to Prawn. Provide
the data to plot as a hash, with each key/value representing a series. For
instance, the following code generates the graph below:

data = {views: {2013 => 182, 2014 => 46, 2015 => 134}}
chart data

A comprehensive guide to Squid options

All the settings available for the chart method are detailed on the Squid homepage:

Please proceed to
http://nullscreen.github.io/squid for more
details and examples.

How to install

Squid requires Ruby 2.4 or higher. If used in a Rails project, requires
Rails 5.0 or higher.

To include in your project, add gem 'squid', '~> 1.4' to the Gemfile file of
your Ruby project.

How to generate the manual

rake manual

How to contribute

If you’ve made it this far in the README… thanks! ✌️
Feel free to try it the gem, explore the code, and send issues or pull requests.

All pull requests will have to make GitHub Actions and Code Climate happy in
order to be accepted. 😙

You can also run the tests locally with bundle exec rspec.

Happy hacking!