{"version":"1.0","type":"rich","title":"unidirectional data flow","description":"This example shows a zoomable world map where clicking a country highlights it in pink, demonstrating unidirectional data flow through a simple render function. Built with D3 v5, it uses `d3.geoNaturalEarth1` and `d3.geoPath` to project and draw country boundaries from TopoJSON data loaded via `d3.json`, with country names from a TSV file. The view updates through an `onClick` handler that toggles a CSS class, while `d3.zoom` applies pan and zoom transformations to the map group.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/916677e4789847beaf348d13b13cb123?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}