{"version":"1.0","type":"rich","title":"Treemap","description":"This treemap visualizes hierarchical data from a CSV file, showing production values for countries grouped under parent categories as nested rectangles. The example uses D3.js v6 with a CSV-parsed hierarchy, stratifying the data via `d3.stratify()` and computing rectangle positions with `d3.treemap()`. Rectangles are rendered as SVG elements with a teal fill and black stroke, while country labels appear in white text within each cell. The layout uses a fixed canvas size with padding between nodes, and styling comes from the included CSS.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/622c9642d38344139ac084f465bba396?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}