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D3 Selections (with dots and lines)

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Last edited Apr 22, 2021

Created on Apr 22, 2021

This example demonstrates how D3 selections manage live-updating data through the `join` pattern as an alternative to `merge`. Animated dots and connecting lines respond to a continuously changing dataset generated by sine functions, with circle positions and radii shifting over time. The visualization uses D3 v6’s `selectAll`, `data`, and `join` to bind dynamic data to SVG elements, while `setInterval` drives the animation at roughly 16 frames per second. The code separates data generation and visualization logic into distinct modules, showcasing reusable D3 selection patterns.

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D3 Selections

join vs merge

MIT Licensed

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