{"version":"1.0","type":"rich","title":"Fork of City density filtering by population and proximity","description":"A world map displays cities with populations over 50,000 sourced from OpenStreetMap, rendered as gray dots alongside highlighted prominent cities. The visualization iteratively filters smaller cities within a distance buffer of larger ones, with blue and white circles indicating surviving cities and their ranks. Using d3.geoPath with a Natural Earth projection, it sizes circles via d3.scaleSqrt and employs @turf/turf functions like buffer and booleanPointInPolygon to determine proximity suppression. Country outlines come from World Atlas TopoJSON.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}