{"version":"1.0","type":"rich","title":"Dataviz 2020_Ep55 - 47. VoronoiOverlay with Labels","description":"This interactive line chart visualizes global COVID-19 death trends for 20 countries using a logarithmic y-axis over time. A Voronoi overlay, generated with `d3.Delaunay`, enables precise hover detection on the chart’s multi-line data, highlighting the nearest point and displaying a tooltip with the country name, death count, and date. The active series is emphasized in black, while the underlying SVG lines remain gray. Data originates from the CSSE COVID-19 time series dataset, rendered in React with D3 scales and axes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/3f5dcda75ce34ddc899b7bc646292f34?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}