{"version":"1.0","type":"rich","title":"Tree 11719939","description":"This interactive tree visualizes EV charging stations grouped hierarchically by charger type, station operator, city, and station ID from a CSV data source. Users can click nodes to expand or collapse branches at each level. The D3 v7 implementation builds the hierarchy with `d3.group`, lays it out with `d3.tree`, and animates node movements and curved link transitions using `transition().duration()`. Colors differentiate depth levels, and zooming is enabled via the `d3.zoom()` API.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/dedd8f1269b24284a5f224a888e2515d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}