{"version":"1.0","type":"rich","title":"Points on a Map (cities)","description":"A world map displays cities as semi-transparent circles sized by population, with landmasses, graticules, and interior borders rendered via d3.geoPath and geoNaturalEarth1. The projection maps latitude and longitude to SVG coordinates, while a d3.scaleSqrt converts population values to circle radii. Data comes from a CSV of world cities, and the map uses React hooks to load TopoJSON world-atlas geometry.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c780792220384c989215271112aa1431?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}