{"version":"1.0","type":"rich","title":"Let's make a map with D3.js!","description":"This example demonstrates how to create a choropleth map of U.S. counties using D3.js and TopoJSON. It renders a geographic projection with the `d3.geoAlbersUsa()` projection and `d3.geoPath()`, drawing landmasses as light green paths over a blue sphere. The map fetches county boundary data from the freeCodeCamp CDN, processes it with TopoJSON’s `feature()` function, and appends each country as an SVG path. The visualization uses an SVG canvas and is accompanied by a video tutorial, showcasing a straightforward workflow for building interactive maps.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e503378a84504c0f9dc583c4abbc0ed7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}