Google Charts on Rails

This is a very small wrapper plugin for the wonderful Charts API from Google.

Google Chart API

Installation

ruby script/plugin install http://google-charts-on-rails.googlecode.com/svn/google_charts_on_rails/

Once installed, start using it directly in your project.

Example

GoogleChart.pie(10,20,40,30).to_url

which creates something like this:

With labels:

GoogleChart.pie(['1997',10],['1998',20],['1999',40],['2000',30]).to_url

or as Hash

GoogleChart.pie_3d_350x150('year 1997'=>10,'year 1998'=>20,'year 1999'=>15,'year 2000'=>55).to_url

Pretty much anything would work:

GoogleChart.line_xy 
GoogleChart.bar_horizontal_stacked
GoogleChart.bar_vertical_stacked
GoogleChart.bar_horizontal_grouped
GoogleChart.bar_vertical_grouped
GoogleChart.pie
GoogleChart.pie_3d 
GoogleChart.venn
GoogleChart.scatter_plot

which you can marry with the size

GoogleChart.pie_100x200(10,20,40,30).to_url

even

GoogleChart.100x200_pie(10,20,40,30).to_url

or do as crazy as

GoogleChart.pie_with_size_blah_blah_600x400('year 1997'=>10,'year 1998'=>20,'year 1999'=>15,'year 2000'=>55).to_url

Lets do it the old fashioned way:

plain initialize

sales_chart = GoogleChart.new 
sales_chart.type = :pie
sales_chart.height = 200
sales_chart.width = 150

or initialize with size and/or type

sales_chart = GoogleChart.pie_3d_200x150

set data

sales_chart.data = [10, 20, 15, 55]

change the default colour with the hex code

sales_chart.colors = '346090'

get the url for the smaller chart

small_sales_chart_url = sales_chart.to_url

reuse object to change size and set labels for a bigger chart

sales_chart.labels = ['year 1997','year 1998','year 1999','year 2000']
sales_chart.height = 600
sales_chart.width = 350
big_sales_chart_url = sales_chart.to_url

Support

This software was developed by blj#rubyonrails with guidance from rsl#rubyonrails

If you find it unpleasant, please submit an issue.