{"version":"1.0","type":"rich","title":"Mass School District Boundaries","description":"A choropleth map displays Massachusetts school district boundaries as gray polygons with teal outlines. The visualization uses a topojson data source loaded via `d3.json` and converted to GeoJSON features with `topojson.feature`. React manages the component state while `d3.geoPath` with a `geoIdentity` projection renders the shapes, using `reflectY(true)` to correctly orient the map coordinates. The SVG output is scaled to fit a 960×500 viewport using `projection.fitExtent`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/808519391da0417d90bbba10ecd52572?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}