{"version":"1.0","type":"rich","title":"world map","description":"This world map visualizes population density across countries, with each nation colored on a sequential blue scale from light to dark based on its density value. The map renders in SVG using a Natural Earth projection via d3.geoNaturalEarth1 and d3.geoPath. It loads TopoJSON country boundaries from world-atlas and joins CSV population data by country ID, while a gradient legend shows the density range. Interactive hover tooltips display the country ID and its population density or “No data” when unavailable.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/7d697864961c486c83a4d72bd037c84a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}