Svelte + D3: Canvas & renderless components

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Svelte + D3: Canvas & renderless components

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Last edited Nov 26, 2025

Created on Feb 7, 2024

Ten thousand semi-transparent dots pulse in a two-second loop, their positions, sizes, and magma-scale colors assigned by random functions mapped through D3 scales. Svelte components manage the lifecycle: a canvas component coordinates drawing and invalidation, while individual circle components use `svelte/motion` tweens to animate between updates, rendering efficiently via Canvas API calls.

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