{"version":"1.0","type":"rich","title":"Earth Tree","description":"This example renders a hierarchical tree visualization of Earth and its continents, with countries as leaf nodes, using an SVG-based layout. The tree is generated with `d3.hierarchy` and `d3.tree`, and links are drawn as horizontal paths via `d3.linkHorizontal`. Each node is a circle with a text label, styled through CSS classes. The data is hardcoded in the script, and the visualization uses D3 v7 within a plain HTML page.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e388748bb543443b8fd6d1aea75f6933?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}