{"version":"1.0","type":"rich","title":"area chart","description":"This area chart visualizes car sales over time, using a yellow filled region beneath a smooth line to emphasize the trend up to 2009. The code employs D3 v5’s `area` and `line` generators with `curveBasis` for smoothing, scaling time and linear axes via `scaleTime` and `scaleLinear`. Data is loaded from a CSV using `d3.csv`, with dates parsed via `timeParse`. SVG output includes styled grid lines, axis labels, and a title.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/3e545b3585824fab987d9d9c082c6136?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}