{"version":"1.0","type":"rich","title":"Tree Map","description":"This tree map visualizes hierarchical sales data for US states and cities using a treemap layout. The visualization encodes each leaf node as a rectangle, with area proportional to sales values and color assigned by parent state via an ordinal scale with the Tableau 10 scheme. The code loads data from a JSON file using `d3.json`, builds a hierarchy with `d3.hierarchy` and `sum`, then applies `d3.treemap` to compute positions. Rectangles and white labels are rendered as SVG elements within a container group.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a9a45132e4f3402d838d864a96cb8a08?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}