{"version":"1.0","type":"rich","title":"proj-choropleth","description":"This visualization animates through daily snapshots of reported crime counts across Chicago’s community areas. A sequential blue color scale, created with `d3.scaleSequential`, encodes each area’s crime total for the current date. Using `d3.geoMercator` and `d3.geoPath`, the example renders SVG paths from a GeoJSON file of community boundaries, with a transitioning fill color per area via `transition.attr`. The code loads crime data from a JSON file and updates the map as it cycles through available dates.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b85fa09711e3485c8e03e4ca6b7e5860?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}