{"version":"1.0","type":"rich","title":"Line Chart with Multiple Lines","description":"This line chart displays multi-year budget estimates for Block IV SSN submarines, with each line representing a different submarine class and its projected delivery dates. The visualization uses D3 v5 with SVG rendering, employing `scaleTime` for both axes, `scaleOrdinal` for color mapping, and a `line` generator with `curveBasis` smoothing. A color legend is built using a custom `colorLegend` function, while the data is sourced from Data Canvas - Sense Your City and processed via D3's `nest` and `descending` sorting to order the lines.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5a0e6b47ad744172a8d6117550a19d8e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}