{"version":"1.0","type":"rich","title":"CA Zip Code Map Part 2B.1","description":"This example maps California zip code boundaries and overlays stroke mortality data from a CSV file. Each zip code polygon is rendered using `d3.geoPath` with a Mercator projection, and hover effects highlight individual regions. The visualization supports pan and zoom interactions through the `d3.zoom` API. The GeoJSON data comes from an external GitHub repository, and the stroke counts are joined to the map by zip code, though the counts themselves are not visually encoded.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ed5519e904614fa98d7bbf632856d070?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}