{"version":"1.0","type":"rich","title":"Map Population of Towns on the South Shore Of MA","description":"A choropleth map of 23 Massachusetts South Shore towns displays population trends from 2000 to 2023 using a year slider and a diverging red-yellow-green color scale for annual percent change. d3.geoPath and d3.geoMercator render simplified town boundary polygons from a GeoJSON file, while React manages the slider state and window resizing. Clicking any town opens a line chart showing its population over time, and interactive hover highlighting links map features with their legend entries. All population data is loaded from CSV files via d3.csv.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4977b613915f4d03bfc6390f6a7240e6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}