README.md
Gvis
====
[](http://badge.fury.io/rb/gvis) : Latest published version on [rubygems.org](https://rubygems.org/gems/gvis/)
[](http://travis-ci.org/jeremyolliver/gvis) [](https://coveralls.io/r/jeremyolliver/gvis) [](https://codeclimate.com/github/jeremyolliver/gvis) Current master branch status
Rails plugin that provides a Ruby wrapper for easily loading the Google Visualization API, and simple generation of the javascript required to plot the graphs
For a full list of the graphs provided by google's visualization api see the [gallery](http://code.google.com/apis/visualization/documentation/gallery.html)
For documentation on how to use each graph type see google's [API documentation](http://code.google.com/apis/visualization/documentation/)
Compatiblity
------------
gvis version 2.x - Rails 3.x compatible (And rails 2.x using rails_xss)
gvis version 1.x - Rails 2.x compatible
Installation
============
Rails 3:
# Gemfile
gem 'gvis', '>= 2.0.0'
Rails 2.X:
# config/environment.rb
config.gem 'gvis', :version => '< 2.0.0'
Then include the GoogleVisualization module in app/helpers/application_helper.rb
module ApplicationHelper
include GoogleVisualization
end
Load the API, and render any graphs by placing these methods inside your layout
# app/views/layouts/application.html.erb
<head>
<%= include_visualization_api %>
<%= render_visualizations %>
...
</head>
Example
=======
Render desired graphs in the view like this:
# index.html.erb
<% visualization "my_chart", "MotionChart", :width => 600, :height => 400, :html => {:class => "graph_chart"} do |chart| %>
<%# Add the columns that the graph will have %>
<% chart.string "Fruit" %>
<% chart.date "Date" %>
<% chart.number "Sales" %>
<% chart.number "Expenses" %>
<% chart.string "Location" %>
<%# Add the data %>
<% chart.add_rows([
["Apples", Date.new(1998,1,1), 1000,300,'East'],
["Oranges", Date.new(1998,1,1), 950,200,'West'],
["Bananas", Date.new(1998,1,1), 300,250,'West'],
["Apples", Date.new(1998,2,1), 1200,400,'East'],
["Oranges", Date.new(1998,2,1), 950,150,'West'],
["Bananas", Date.new(1998,2,1), 788,617,'West']
]) %>
<% end %>
Contributing
============
Pull requests for new features/bugfixes are welcome. If you're interested in helping maintaining gvis, please contact me.
---
Copyright (c) 2009 [Jeremy Olliver], released under the MIT license