{"version":"1.0","type":"rich","title":"Line Chart With Marker Lines and D3 Axes","description":"This example visualizes global COVID-19 deaths over time as a line chart, with a horizontal marker line at six million deaths and a vertical marker at the most recent date. The chart uses React components wrapping D3 scales and axes, including `scaleTime`, `scaleLinear`, and `axisBottom` for gridlines. Data is loaded from a CSV file and aggregated by day from the CSSE COVID-19 dataset. Rendering uses SVG paths generated by D3's `line` generator.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/3a4c8cb4e14e4ba4a9e345d3eb7c4fb1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}