{"version":"1.0","type":"rich","title":"Fork of Area Chart (ICE-7)","description":"This example visualizes BMW car sales by year using an area chart with a blue filled region, a yellow line, and orange circular points. The chart aggregates annual sales data from a CSV file via `d3.csv`, then rolls up values with `d3.rollup`. It uses `d3.area` with `curveMonotoneX` to generate the filled shape and `d3.line` for the stroke. SVG rendering includes grid lines, axes, and a hover tooltip that updates through mouse events. The animation capability stems from D3 transitions applied to the tooltip’s opacity.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6199b860b4d54b21a836f7867123db4e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}