{"version":"1.0","type":"rich","title":"TreeMap Mortality COVID","description":"A treemap visualizes total COVID deaths per 10 million people across Sweden, Denmark, and Norway, using each country's latest recorded value from a CSV dataset. The treemap layout, sized at 800×500 pixels, is generated with `d3.treemap()` on a `d3.hierarchy` object. Each country appears as a colored rectangle, filled via `d3.countryColors`, with labels and hover tooltips. The example uses D3 v7 with SVG rendering, sorting records by date to select the most recent death rate per country.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c676ab7b1cd14b5cb46408cb035427f1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}