D3 Selection Exploration

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D3 Selection Exploration

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Last edited Dec 21, 2022

Created on Dec 20, 2022

This example demonstrates the update and join pattern of D3 selections, animating a set of 15 circles and a connecting line path over time. The circles and path are re-rendered every frame using a `setInterval` loop, with their vertical positions and radii driven by a sine function of an incrementing time variable. The code uses `d3.select`, `selection.selectAll`, `selection.join`, and `d3.line` to bind new data arrays generated by `makeData` to SVG elements, showing how D3’s data-join syntax handles dynamic updates efficiently. The visualization runs in a full-window SVG canvas.

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