{"version":"1.0","type":"rich","title":"Pie chart","description":"A pie chart displays the proportional breakdown of a categorical variable, using colored slices to represent each category's share of the whole. The example renders a fixed dummy dataset (`{a: 9, b: 20, c:30, d:8, e:12}`) as SVG paths, with each slice's angle determined by `d3.pie` and its geometry drawn via `d3.arc`. Colors come from `d3.scaleOrdinal` with a manually specified palette, and the chart is centered within a 450×450 pixel canvas. The code uses the D3.js v4 library, appending the visualization to a `<div>` and styling slices with black strokes and 0.7 opacity.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8fc6bf53fbad48d79036ea15b493bf7f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}