arc tween example
An animated arc chart demonstrates pie-segment transitions using D3 v4’s `transition.attrTween`. A white foreground arc rotates to a new random angle every few seconds, while a segmented, multicolored ring around it sequentially fills or empties its sections. The code defines arc generators via `d3.arc`, binds data from a fixed array, and computes path interpolations between angles using `d3.interpolate`. SVG elements render the background ring and active arcs, with transitions triggered by `d3.interval`.
AI-generated descriptionA commented example of tweening arcs; see Pie Chart Update, II and Arc Tween (Clock) for older examples. (There’s also The Amazing Pie and Donut Transitions if you want to get fancy.) See the API reference for transition.attrTween and my tutorial Working with Transitions for more.
forked from <a href='http://bl.ocks.org/mbostock/'>mbostock</a>'s block: <a href='http://bl.ocks.org/mbostock/5100636'>Arc Tween</a>
forked from <a href='http://bl.ocks.org/SpaceActuary/'>SpaceActuary</a>'s block: <a href='http://bl.ocks.org/SpaceActuary/ccb5cb0b0242b2fe1063dd0991862fee'>Arc Tween</a>