{"version":"1.0","type":"rich","title":"Multiple line Chart","description":"This visualization displays temperature trends over time for multiple cities, with each city represented by a distinct colored line and labeled in a legend. The lines are smoothed using `curveBasis` and data is grouped by city via `d3.nest()`, while axes and scales are built with `d3.scaleTime`, `d3.scaleLinear`, and `d3.axisBottom`/`d3.axisLeft`. The color scale uses `d3.scaleOrdinal` with `schemeCategory10`, and the SVG rendering includes styled grid lines and a title. Data is loaded as CSV from an external URL.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b3603fe5764f48d39285af16b081e529?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}