{"version":"1.0","type":"rich","title":"Export CartoDB GeoJSON to TopoJSON.","description":"This example demonstrates how to render TopoJSON geographic data as an SVG map using D3. It loads a world dataset pre-converted from CartoDB GeoJSON format and draws country polygons with a Mercator projection. The countries are styled with a light gray fill and white strokes, using D3’s geo path and TopoJSON utilities. The map is displayed in a narrow Bootstrap container, with the visualization sized at 960 by 1160 pixels.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-dbe7bae49fb4d469707a1df467ba4e2c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}