{"version":"1.0","type":"rich","title":"Q2","description":"A pie chart visualizes the composition of 150 space cargo shipments by material type, with percentage labels on each slice and a legend listing total units per category. The chart aggregates quantities from a CSV file using `d3.csv` and `d3.rollups`, then renders SVG arcs with `d3.pie` and `d3.arc`. Color encoding uses `d3.scaleOrdinal` with `d3.schemeTableau10`, and slice labels are positioned via `arc.centroid`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f17ac4270e9c4ee7b0166e6bf1efa729?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}