d3_charts

Rails helpers for building SVG charts using the d3 library.

Installation

Add this line to your application's Gemfile:

gem 'd3_charts'

And then execute:

$ bundle

Or install it yourself as:

$ gem install d3_charts

To make it work you need to require the javascripts in application.js:

//= require d3_charts

To add some basic colouring of pie charts, add the the following in application.css:

*= require 'd3_charts'

Usage

Pie charts

= chart_tag(:pie, data, options)

Available options are:

• width, defaults to 1000
• height, defaults to 1000

Which are passed in like so:

= chart_tag(:pie, data, { width: 123, height: 123 })

Area charts

= chart_tag(:area, data, options)

Available options are:

• width, defaults to 1000
• height, defaults to 1000
• date_format, the strftime format of datums as rendered in the chart, defaults to %Y-%m-%d
• data_date_format, the strftime format of datums as specified in the data, defaults to %Y-%m-%d

Which are passed in like so:

= chart_tag(:area, data, { width: 123, height: 123 })

TODO:

• More charts:
  • Line Chart
  • Histogram Chart
  • Vertical Bar Chart
  • Horizontal Bar Chart

Contributing

1. Fork it ( https://github.com/tomasc/d3_charts/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request