{"version":"1.0","type":"rich","title":"Circles on a Map of Slovakia","description":"This example displays a map of Slovakia with circles positioned at the centroids of each district, sized according to the number of apartments in multi-story residential buildings. The map uses a Mercator projection via `d3.geoMercator` and `d3.geoPath`, with topojson data loaded asynchronously. Circle sizes are scaled using `d3.scaleLinear`, and a legend is generated with a custom `sizeLegend` function. The visualization is rendered as SVG in a React app and supports zooming through D3’s zoom behavior.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ee6e20ed3b8f4fe899e4291c45b3083c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}