{"version":"1.0","type":"rich","title":"D3 Course 4: Area Chart","description":"This area chart visualizes world population by year from 1960 to 2015, using a smooth curved path to show growth over time. The visualization loads data from a CSV file via `d3.csv`, then renders an SVG path generated with `d3.area` and `curveBasis`. Axes are created using `d3.axisBottom` and `d3.axisLeft`, with scales from `d3.scaleTime` and `d3.scaleLinear`, and population values are formatted in billions using `d3.format`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ab824e530ed64661a0fa5972b2132c40?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}