{"version":"1.0","type":"rich","title":"Fork of D3 Starter - vijq2(pie chart)","description":"A pie chart visualizes the total exam score contribution for each grade category (A–D) using data from a 120-row CSV file. The D3.js v7 code loads the data, aggregates scores by category with `d3.rollup` and `d3.sum`, and renders slices via the `d3.pie` and `d3.arc` generators. Interactive tooltips appear on hover, displaying each category's total and letter label. A legend maps colors from `d3.scaleOrdinal` with the Tableau10 scheme, and the SVG output is white-stroked.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6743f016499f4e3abf6a73c20ab790b4?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}