{"version":"1.0","type":"rich","title":"PieChart","description":"This visualization uses D3.js to display an interactive pie chart of wheat production by Indian states from 1966 to 2017. The chart aggregates production data from a CSV file, using `d3.pie()` to generate slices with an inner radius of zero, and `d3.scaleOrdinal` with `d3.schemeCategory10` for colors. Year checkboxes filter the underlying data via `d3.rollup`, recalculating totals and redrawing the chart, while `mouseover` events show tooltips with production values. The SVG rendering includes a legend and interactive state highlighting.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/78bb7a11c6694ffab934dec10257ff0a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}