{"version":"1.0","type":"rich","title":"World map","description":"A hierarchical tree map displays the geographic organization of world countries, branching from continents into subregions and individual nations. The visualization reads country names from a nested JSON file, structured by continent and subregion. Implemented with D3 v5, the tree layout computes node positions while horizontal links connect parent and child nodes via the `linkHorizontal` path generator. Zoom functionality is enabled through `d3.zoom`, and each country label’s font size scales inversely with depth, making higher-level categories larger and more prominent.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/bf6fe84a515747dfbea4fc0b1e6afc10?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}