{"version":"1.0","type":"rich","title":"Let's make a JPN map with D3.js!","description":"This example displays a black-and-white map of Japan with prefecture boundaries rendered as white strokes, using the jpn-atlas dataset as its geographic source. It loads the data from a remote JSON file and applies a Mercator projection through `d3.geoMercator` and `d3.geoPath` to generate SVG paths for each prefecture. The code uses `topojson.feature` to convert the TopoJSON into GeoJSON, then binds the features to path elements in the SVG. The visualization demonstrates a straightforward D3 v5 workflow for choropleth preparation.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d8f6fd4b808547db8dd95d31ab74961e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}