{"version":"1.0","type":"rich","title":"Coronavirus line chart - global deaths - marker line 500k","description":"A line chart tracks cumulative global COVID-19 deaths over time using a timeline from the Johns Hopkins dataset, with a horizontal marker line at 500,000 deaths and a vertical marker labeled \"now\" at the most recent date. The React component builds a D3 v5 `scaleTime` and `scaleLinear` to map dates and totals, then uses a `line` generator to draw the SVG path. Custom `YMarkerLine` and `XMarkerLine` components render the threshold and current-date annotations, emphasizing the crossing of the half-million milestone.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/cf459da5bfd244fdb83dacd0a9b5e9d1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}