{"version":"1.0","type":"rich","title":"Radial Tree of Nigeria Local Government Areas","description":"This radial tree visualization displays Nigeria's hierarchical structure, from geopolitical zones down to individual local government areas. Users can pan and zoom the layout, which positions leaf labels around the circle and centers deeper node labels for legibility. The implementation loads a static JSON file and uses D3 v4’s tree layout (`d3.tree`), custom projection functions, and zoom behavior (`d3.zoom`). Node depth drives font sizing via a square-root scale, while link paths and text positioning rely on the cluster layout’s angular coordinates.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/46b57b76ac3e49b2a011f0fe829e71f0?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}