{"version":"1.0","type":"rich","title":"A9-Proportional symbols","description":"This example shows a choropleth map of poverty rates by U.S. county, with color intensity indicating the poverty value for each county. It uses d3.geoPath to render the topojson-based county boundaries, while d3.scaleThreshold and d3.schemeGreens map the data values to a green color ramp. Interactive tooltips display the county name and poverty value on hover, and a color legend is added via the d3-legend library. The data is loaded from a CSV containing poverty attributes per county.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b6969795757b4a7eb079776796ac4afc?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}