Rotating Voronoi in d3v4

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Rotating Voronoi in d3v4

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Last edited Jul 2, 2016

Created on Jun 29, 2016

A rotating Voronoi diagram animates dozens of moving points whose cells constantly morph, producing intricate curved patterns against a black background. The animation derives from points arranged on circular paths that rotate at varying speeds and radii, while the Voronoi tessellation updates each frame. The code uses d3.voronoi to compute the polygons and d3.line with the curveBasisClosed interpolator to render them. A custom resample function subdivides each polygon edge into three segments before drawing, creating the smooth, curved cell boundaries. The animation runs continuously via d3.timer, with points’ positions updated directly in response to elapsed time.

AI-generated description

Mario Klingemann has made some beautiful Voronoi diagrams. This is my attempt to recreate them using D3. To achieve the curved cells, each side of the Voronoi polygon is subdivided into three equal-length segments and then joined using the "basis-closed" line interpolator. There are some discontinuities in the animation when the sides of a polygon approach zero which could likely be avoided by adding a minimum-length threshold to the subdivision.

If you’d like to see other instances of this pattern, Mario describes the algorithm on Flickr.

forked from <a href='http://bl.ocks.org/mbostock/'>mbostock</a>'s block: <a href='http://bl.ocks.org/mbostock/4636377'>Rotating Voronoi</a>

gpl-3.0 Licensed

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