Extending Arcs

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Extending Arcs

✓ Published0🌍 Public

Last edited Feb 9, 2016

Created on Dec 1, 2014

Hovering over a slice of this pie chart causes it to extend outward and darken, emphasizing that segment while the padding between arcs stays constant. The chart uses D3.js v3 with a `pie` layout and an `arc` shape with a fixed `padRadius`. Data is an inline array of Fibonacci numbers. Mouseover and mouseout events trigger `transition.attrTween` to smoothly interpolate each arc's `outerRadius`, with a delay on mouseout, while SVG paths handle the rendering.

AI-generated description

On hover, these arcs extend outward slightly and darken. Increasing the outer radius of the hovered arc temporarily exaggerates its area, but is useful for emphasis.

Note that the padding between adjacent arcs remains constant when arcs extend or contract. This is achieved by specifying an explicit arc.padRadius that is the same for all arcs, rather than relying on the default behavior which depends on the arc’s inner and outer radii.

gpl-3.0 Licensed

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