{"version":"1.0","type":"rich","title":"Selecting a Year on Line Chart","description":"This line chart displays population over time by region, with a vertical line marking the year 2018. The visualization uses D3 v5's scaleTime, scaleLinear, and scaleOrdinal to map temporal, quantitative, and categorical data, respectively. Lines are generated using d3.line with curveBasis smoothing, and a transparent rectangle captures mouse movement to invert x-scale coordinates for interactive exploration. Data is sourced from UN population estimates and processed via d3.csv and d3.range.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/146e1b7d3c9f4f5386c3d32cd913bb85?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}