{"version":"1.0","type":"rich","title":"Colm Lang | A9 Proportional Symbols","description":"A proportional symbols map displays the relative housing cost index for U.S. states, using circles sized with a quantized scale and positioned at state centroids. Built with D3.js, it loads CSV and GeoJSON data, projects geometries via `d3.geoAlbersUsa` and `d3.geoPath`, and renders SVG paths for state outlines. The circles are added with `d3.selectAll`, and a legend is generated using `d3.legendSize` to map cost values to circle radii.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/506ae26489f043ec9848f2b18aaa9dae?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}