Full tutorial coming soon! In the meantime, check the JSFiddle below.

This visualization shows the top 2011 NYC baby names by mother’s ethnicity. The vis is a variation on our static bubble chart, but with some fun multi-foci force direction added in.

Background from the D3 API reference and more:

• quick primer on animations and transitions in visualizations
• force layout
• bubble chart as a flattened pack layout
• the pack layout is one of D3’s hierarchy layouts

This tutorial is based on our previous bubble chart tutorial and M. Bostock’s multi-foci force layout, as well as our bar chart tutorial, Bostock’s bubble chart example, and InfoCaptor’s Bubble My Page service.