heatmap

Simple Heatmap generator for Ruby.

Prerequisites

This gem requires ImageMagick to run. You can easily install it with homebrew:

brew update && brew install ImageMagick

Add this line to your Gemfile:

gem 'heatmap'

And then execute:

bundle install

Or install it yourself:

gem install heatmap

Using heatmap is as easy as 1,2,3:

1) Create a new Map object:

map = Heatmap.new #same as Heatmap::Map.new

2) Add Area objects to the map:

map << Heatmap::Area.new(x, y, alpha)

3) Output the generated heatmap:

map.output(filename)

Examples are included in the examples directory.

Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet.
Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it.
Fork the project.
Start a feature/bugfix branch.
Commit and push until you are happy with your contribution.
Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
Please try not to mess with the Rakefile, version, or history.