{"version":"1.0","type":"rich","title":"Gist 6bf5a60d08034143bf8b","description":"This map visualizes building footprints across Cambridge and Somerville, joined with distances to Boston libraries and MBTA transit stations. Using CartoDB’s SQL interface, the code applies `ST_Distance` with a nearest-neighbor subquery to compute proximity metrics, then publishes the results as a multilayer visualization. The map is rendered through CartoDB’s mapping engine, displaying thematic styling based on the calculated spatial relationships.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-6bf5a60d08034143bf8b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}