{"version":"1.0","type":"rich","title":"Japan Country","description":"This example displays a map of Japan rendered as SVG paths, with a slider controlling the level of topographic simplification. The visualization uses a TopoJSON dataset of Japan, which is converted to GeoJSON via `topojson.feature` and then processed with `topojson.presimplify` to compute area-based simplification weights. A `d3.geoTransform` custom stream applies a threshold filter, and `d3.geoPath` projects the filtered coordinates using a Mercator projection fitted to the viewport. The slider triggers redraws that dynamically show coarser or finer terrain detail, with a header reading “Japan Map.”","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/693072ea4b9f41aeb57f20f77ae171f0?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}