{"version":"1.0","type":"rich","title":"Fork of Selecting a Year on a Line Chart","description":"This interactive line chart shows population trends over time for world regions projected through 2100, using data from UN population estimates. Users navigate by mousemove events that call `setSelectedYear` to update a highlighted vertical line, while a color legend identifies each region. The visualization uses d3.v5 with `scaleTime`, `scaleLinear`, `scaleOrdinal`, `axisBottom`, `axisLeft`, `line` with `curveBasis`, `nest`, `mouse`, and SVG rendering. Colors come from `schemeCategory10`, and the chart adapts via a state-driven `render` function.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8ca2e5be02aa400a81b7bc0d27ad9a25?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}