Create an interactive bubble chart with HTML5 canvas

Infographics are a way to make data understandable and entertaining. Some achieve their goal through creative graphic design, such as print infographics. Others achieve it through animation and interactivity. The best example I've recently seen is a series of talks by imaginative speaker and professor Hans Rosling. I highly recommend you watch his 20 minute whirl of a TED talk where he debunks common myths about the developing world.

The key to Professor Rosling's success is that he renders public data in a form that non-experts can understand. The core of his work is an amazing bubble chart that compares areas of the world over time. In this article I will show you how to create an attractive bubble chart using HTML Canvas populated with real data from the World Bank.

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