This demo displays an interactive orthographic globe where users can click and drag to rotate the Earth, with country boundaries rendered as SVG paths and tooltips revealing country names on hover. The sphere, graticule, and countries are drawn using d3.geoPath with a d3.geoOrthographic projection, while rotation is handled manually through d3.drag events that adjust the projection’s rotate values. Country geometries come from the world-atlas TopoJSON dataset (50m resolution) paired with a TSV file for name lookups, and the visualization also supports d3.zoom for additional transformations.