A la ferme du code heureux, des codes, des programmes, broutent en champ libre.
Paper.js

"Paper.js is an open source vector graphics scripting framework that runs on top of the HTML5 Canvas. It offers a clean Scene Graph / Document Object Model and a lot of powerful functionality to create and work with vector graphics and bezier curves, all neatly wrapped up in a well designed, consistent and clean programming interface."

http://paperjs.org