{"version":"1.0","type":"rich","title":"Points on a Map with Size","description":"A world map displays cities as semi-transparent circles, with circle size encoding each city’s population using a square-root scale. The map renders geographic landmasses, graticules, and country borders from the World Atlas TopoJSON, projected with `d3.geoNaturalEarth1`. City data loads from a CSV via `d3.csv`, while React components manage state and render the SVG, using `d3.geoPath` to draw map features and `d3.scaleSqrt` for sizing.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1d5904688d9f476db138596557cf1f7c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}