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India Parliamentary Constituency TopoJSON

Source: http://shailendra.me/knowYourMP/maps/india.json

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Canvas scatterplot w/ quadtree for point picking on hover, per: https://twitter.com/mbostock/status/733317794419212288

If you don't want the full Voronoi effect because your chart has some big dead zones, you could add a distance threshold and only trigger the highlighting when the nearest point is within that distance.

If you need behavior that more closely mimics mouse/touch because your shapes have significant dimensions or their layer order matters, you could try colorpicking instead.

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license: mit
height: 620
border: no

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Requested by Toph Tucker.

Less mysterious version

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Playing around with Boids-style flocking. Click to add more, coloring by movement colors each boid by a moving average of its acceleration magnitude.

See also: Particle tentacles

More boids:

boids by Hugh Kennedy
boids-canvas by Mike Christensen
boids demo by Anoop Elias
flocking in Processing by Daniel Shiffman

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Playing around with Boids-style flocking. Click to add more, coloring by movement colors each boid by a moving average of its acceleration magnitude.

See also: Particle tentacles

More boids:

boids by Hugh Kennedy
boids-canvas by Mike Christensen
boids demo by Anoop Elias
flocking in Processing by Daniel Shiffman

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license:gpl-3.0

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license: gpl-3.0

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Automatic Label Placement

This example is an extension of Mike Bostock’s tutorial Lets Make a Map that implements automatic label placement using collision detection. This is a proof of concept more than anything, not polished in any way.

References

• Lets Make a Map

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license: mit