{"version":"1.0","type":"rich","title":"Using Points on a World Map","description":"This visualization displays a world map with points marking cities that have populations greater than 50,000, sourced from the Simplemaps World Cities Database. Using d3.geoNaturalEarth1 and d3.geoPath, it renders land masses, graticules, and country interiors as SVG paths, with city coordinates projected onto the map. The React-based code loads TopoJSON world atlas data via d3.json and mesh, while city data is fetched as CSV. Circles are drawn with low opacity to reveal dense urban clusters across continents.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/81ade056523e494f881179d79469a111?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}