{"version":"1.0","type":"rich","title":" Activity 7.1D3.JS","description":"This D3.js v7 visualization presents a pie chart of vehicle types, using SVG rendering to display proportional slices of the data. It loads a CSV file from a GitHub gist and aggregates the records with `d3.rollup`, counting occurrences per vehicle type. The chart uses `d3.pie` and `d3.arc` to generate the paths, with `d3.scaleOrdinal` and `schemeTableau10` providing categorical colors. A legend is drawn manually, and tooltips are added via SVG `title` elements. The chart also includes axis labels as static text.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/36a484d29e7749268fb2bb936cbf72e1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}