{"version":"1.0","type":"rich","title":"Line chart with multiple lines","description":"A line chart displays a week of temperature readings for multiple cities, with each city’s time series drawn as a distinct colored line and a color legend identifying each one. The chart uses D3’s `scaleTime`, `scaleLinear`, and `scaleOrdinal` for scales, `d3.line` with `curveBasis` for path generation, and `d3.nest` to group data by city. The SVG rendering includes axes with gridlines, and data is loaded via `d3.csv`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/17ea8cf83eee4364a221f5c92767ae20?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}