{"version":"1.0","type":"rich","title":"TreeMap with Tooltips","description":"This interactive tree map visualizes the hierarchy of steel scrap imports by partner country and commodity type. The hierarchical data is aggregated and rendered as nested rectangles using the D3.js treemap layout algorithm. Each country cell is color-coded and labeled, and clicking a country drills down to reveal its constituent commodity categories. Tooltips display the country, commodity, and value on hover, while a reset button restores the original view. The dynamic updates and transitions are implemented using D3's `transition` API within an SVG-based rendering.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6335b1f2642f452198ef67b4ed136223?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}