{"version":"1.0","type":"rich","title":"points on a Map","description":"This example displays a world map with semi-transparent points representing cities, overlaid on a natural Earth projection. The visualization uses D3 v5’s `geoNaturalEarth1` and `geoPath` to render the sphere, graticules, landmasses, and country interiors from a TopoJSON world atlas, while city coordinates from a CSV are projected and drawn as circles. React manages the component state, fetching data asynchronously with `useEffect` and rendering the SVG marks via a custom `Marks` component.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/52f820c62a114da887a6a9c4093a151b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}