はてなブックマーク

Tooltips for D3 Data Visualizations. Kodama is a D3-based tooltip system designed to be simple, fast and small with a fluent API. Tooltips are evaluated in a lazy fashion, allowing thousands to potentially coexist (virtually) in the same context without suffering a performance hit. It can be styled without CSS classes (which I view as terribly heretical global variables for any large, modular appl