{"version":"1.0","type":"rich","title":"Temperature in multiple cities","description":"This interactive line chart depicts population changes for multiple regions over time, sourced from UN population estimates. Users can click or hover to select a specific year, triggering a vertical line that updates across all series. The visualization uses the D3.js library with SVG rendering, employing `scaleTime` and `scaleLinear` for axes, `line()` for paths, and `scaleOrdinal` for color encoding. Data is processed from CSV files using `csv`, `timeParse`, and `range`, and a custom `colorLegend` function displays the categorical color scale.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/023aa91d1e454aaca41830ab165b40fb?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}