{"version":"1.0","type":"rich","title":"Points on a Map","description":"This visualization displays the world’s most populous cities as semi-transparent circles on a natural Earth projection, with circle size scaled by population using a square-root scale. The map renders landmasses, country interiors, graticules, and a sphere outline via d3.geoPath and geoNaturalEarth1. City positions are projected from latitude and longitude coordinates, with data loaded from a CSV of world cities using the d3.csv function. The SVG marks are built as React components, while the atlas topology comes from the world-atlas package.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/40593a79fdff4d83a9ccc76b84c772cf?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}