D3 Selections

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✓ Published1🌍 Public

Last edited Jan 10, 2023

Created on Jan 9, 2023

A set of circles animates vertically in a sine wave pattern, changing count over time to demonstrate D3 data joins. The code uses `select` and `data` to bind an array of objects with `x`, `y`, and `r` properties to SVG circles, then applies the `join('circle')` pattern to handle entering and exiting elements. Animation runs via `setInterval` at 60 frames per second, with `makeData` generating positions based on `Math.sin` and a time parameter. The visualization highlights the decoupling of data generation from rendering through a reusable `vizData` function.

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A bare minimum HTML page demonstrating use of CSS and JavaScript.

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