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Last edited Oct 22, 2018

Created on Oct 22, 2018

A radial layout displays the 50 U.S. states as labeled circles, with candidate circles repositioning via a D3 force simulation. The code uses `d3.forceSimulation` with `forceX` and `forceY`, plus custom gravity and quadtree-based collision functions, to push candidate nodes from their initial center position. State nodes are fixed in a circle based on index, each showing its two-letter symbol. The SVG renders all elements, with candidate circles colliding against each other but not against state circles.

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