{"version":"1.0","type":"rich","title":"Fork of Choropleth again","description":"This example shows the spatial distribution of Airbnb listings across Chicago neighborhoods by overlaying red point markers onto a light blue choropleth map. A Mercator projection is created with `d3.geoMercator` and fitted to the map data using `fitSize`, while `d3.geoPath` renders the GeoJSON neighborhood boundaries. The listings are loaded from a CSV file and plotted as SVG circles, with their positions computed via the projection function. The visualization uses D3 v6 and relies on `Promise.all` to load both the GeoJSON and CSV data concurrently.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/7f9e58ded4de401d85afc541bb464f98?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}