Square Circle Spiral Illusion

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Square Circle Spiral Illusion

✓ Published0🌍 Public

Last edited Feb 9, 2016

Created on Nov 22, 2011

Six concentric rings of small squares rotate at different speeds via SVG transforms, creating a spiral-like square illusion against a gray background. Alternate squares are stroked white for contrast. The animation uses `d3.timer` and `d3.selectAll` with `attr("transform")` to update rotation based on elapsed time, while each ring’s squares are generated from `d3.range` and positioned with `translate` and `rotate`. The code runs on D3 v3 and relies on SVG `rect` elements.

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gpl-3.0 Licensed

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