{"version":"1.0","type":"rich","title":"Points on a Map React & D3 (codeAlong)","description":"This map visualization displays world cities as semi-transparent circles sized by population on a Natural Earth projection. Built with React and D3 v6, it uses `d3.geoNaturalEarth1` and `d3.geoPath` to render land masses, graticules, and country interiors from TopoJSON data, while `d3.scaleSqrt` maps city populations to circle radii. City coordinates from a CSV dataset are projected onto the SVG canvas, with D3’s `csv` loader fetching the data asynchronously.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/249790784a6c4739bc9bf8e283719aba?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}