D3 Course 7: World Map - Rotating Globe
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This interactive visualization presents a rotating orthographic globe that continually spins on a tilted axis. The world’s landmasses, drawn in light green with dark borders, are accompanied by a graticule grid of meridians and parallels. The globe supports zooming via the d3.zoom behavior, while d3.timer drives the rotation by updating the d3.geoOrthographic projection’s rotation parameters. Country data comes from the world-atlas TopoJSON files, with names appended as SVG title tooltips; hovering highlights individual countries in red.
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