{"version":"1.0","type":"rich","title":"CPSC 436V Week 7 - Selecting a Year on a Line Chart","description":"A line chart displays United Nations population estimates and medium-variant projections from 1950 to 2100, with one multi-colored line per world region. Users hover over the chart to select a year, shown as a vertical black line. The visualization uses d3.line with curveBasis, d3.scaleTime, d3.scaleOrdinal, and d3.nest to group data, and d3.mouse for interaction on the SVG.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/233ae7bba0fd491cad7f754e2db8c217?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}