d3 Selections exploration

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d3 Selections exploration

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Last edited Feb 28, 2023

Created on Feb 28, 2023

This example demonstrates real-time animated selection management in D3.js, showing how data-driven circle positions respond to changes in a sine-wave-based array over time. Using D3’s `select`, `selectAll`, and `.data()` methods, the visualization adds new circles for incoming data points and updates existing ones. The code showcases the modern `.join()` API, which automatically handles enter, update, and exit states for SVG circles, applying attributes like `cx`, `cy`, and `r` in a single chained operation. Rendering occurs through an SVG canvas with a 60fps interval-driven animation loop.

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

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