D3 Selection Exploration

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D3 Selection Exploration

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Last edited Jan 7, 2026

Created on Jan 7, 2026

This example demonstrates D3’s selection and data-join mechanisms by animating a set of circles whose count, positions, and radii oscillate over time. It renders in SVG, updating every frame via `setInterval`, and uses `d3.select`, `d3.range`, and the `selection.join()` method to bind changing array data to circle elements. The motion follows sine waves, producing a rhythmic, fluid visual. The code relies on D3 v6, with no external data source or interaction.

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