{"version":"1.0","type":"rich","title":"world countries tree","description":"This interactive tree diagram displays the hierarchical organization of world countries, grouped by continent and subregion, using a dataset from the UN (data.json). The visualization employs D3 v5’s `tree` layout and `hierarchy` function to compute node positions, with `linkHorizontal` drawing the connecting paths. Node labels are not rendered in this example; instead, a steelblue background rect is drawn, and the chart is sized to fill the viewport via `document.body.clientWidth/Height`. The underlying data is static JSON, while a separate CSV file provides population figures, though these are not currently linked or displayed.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b2235ac533f24ccbb67c8c11ade2cbc4?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}