{"version":"1.0","type":"rich","title":"Coronavirus Line Chart with Marker Line Margin Convention","description":"This example shows the cumulative global COVID-19 death totals over time as a black line chart, with horizontal and vertical marker lines highlighting the one-million-death threshold and the most recent date. The visualization uses React components with ES6 modules, while D3 v5’s `scaleTime`, `scaleLinear`, and `line` APIs handle the data mapping and path generation. Data comes from the CSSE COVID-19 time series CSV, and the chart includes margin-based positioning for axes and markers in an SVG render.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/68566248f1504df2bec520198f01d934?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}