{"version":"1.0","type":"rich","title":"D3 v5 Zoomable Sunburst","description":"This interactive zoomable sunburst chart visualizes a hierarchical dataset of restaurant categories across multiple U.S. cities, with each ring segment representing a food type and its relative value. Users can click on any segment to re-center the visualization on that node, smoothly animating the repositioning and scaling of all arcs and labels over 750 milliseconds. Built with D3 v5, the implementation uses the `d3.hierarchy` and `d3.partition` APIs to compute the layout, `d3.arc` for rendering paths, and `d3.interpolate` within a `transition.attrTween` for seamless zoom transitions. Colors are assigned via a rainbow-interpolated ordinal scale, and the flare dataset is loaded asynchronously from the Observable stdlib.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8a393a422089413c909239d6f3223ff2?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}