{"version":"1.0","type":"rich","title":"D3 Example","description":"This interactive visualization displays world cities with populations over 100,000, rendered as SVG circles on a map. Each city is represented by a circle where every filled pixel corresponds to 50,000 people, and overlapping circles appear brighter, indicating population density. Users can zoom with the scroll wheel, pan by dragging, and hover over a circle to view the city’s name and population. The visualization is built with Vue and uses d3-tip for tooltips, drawing on a tutorial and a drag-and-zoom example by Mike Bostock. City data is sourced from Geonames.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-dd79c5876d270b261fe7f0831474d754?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}