{"version":"1.0","type":"rich","title":"COVID-19 Country measures","description":"This interactive tree diagram visualizes COVID-19 country measures, organizing hierarchical data into collapsible nodes. The visualization uses d3.layout.tree with SVG rendering and zoom/pan capabilities via d3.behavior.zoom. Users can click nodes to expand or collapse branches, while a custom context menu (d3-context-menu.js) provides additional options. The tooltip displays detailed information about each measure, and the tree layout dynamically recalculates height based on visible children. Data is loaded from a pipe-delimited CSV file using d3.dsv, converted into a nested structure via a name-to-parent map.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a4c700ee9eb24a9d912c63807a6593d6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}