{"version":"1.0","type":"rich","title":"Cheap Tricks for Interaction","description":"This example demonstrates how to add interactive highlighting to a geographic map with minimal code. It renders an SVG world map using TopoJSON and D3’s `geoNaturalEarth1` projection, styled via CSS classes. The visualization uses D3 v5 with a JavaScript `Heatmap` class, though the class is instantiated with sample array data rather than heatmap-specific values. The key interaction is a simple CSS `:hover` rule that changes country fill colors from light green to red. The code also initializes a zoom behavior, though no zoom transforms or panning are implemented in the provided scripts.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4a8efdd4c93241f5bca4bdf0b61e4a71?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}