The Blue Planet
The Blue Planet presents an auto-rotating orthographic globe displaying world country boundaries. A starfield background and blue sphere create a space-themed perspective, with countries colored via a green ordinal scale. The visualization loads geographic data from a TopoJSON file and merges it with TSV metadata. D3’s `geoOrthographic` projection, `geoPath`, and `d3.timer` drive the continuous rotation, while zoom interactions and hover effects highlight individual nations.
AI-generated descriptionData Files: <a href="https://unpkg.com/browse/world-atlas@1.1.4/world/" target="_blank">https://unpkg.com/browse/world-atlas@1.1.4/world/</a><br>
Background Picture: <a href="http://www.script-tutorials.com/demos/360/images/stars.png" target="_blank">http://www.script-tutorials.com/demos/360/images/stars.png</a><br>
D3-Geo: <a href="https://github.com/d3/d3-geo" target="_blank">https://github.com/d3/d3-geo</a><br>
World Atlas TopoJSON: <a href="https://www.npmjs.com/package/world-atlas" target="_blank">https://www.npmjs.com/package/world-atlas</a><br>
TopoJSON.js: <a href="https://unpkg.com/topojson@3.0.2/dist/topojson.js" target="_blank">https://unpkg.com/topojson@3.0.2/dist/topojson.js</a><br>
World Map SVG: <a href="https://observablehq.com/@d3/world-map-svg" target="_blank">https://observablehq.com/@d3/world-map-svg</a><br>
D3-Zoom: <a href="https://github.com/d3/d3-zoom" target="_blank">https://github.com/d3/d3-zoom</a><br>
D3-scale-chromatic: <a href="https://github.com/d3/d3-scale-chromatic/blob/master/README.md#interpolateTurbo" target="_blank">https://github.com/d3/d3-scale-chromatic/blob/master/README.md#interpolateTurbo</a><br>
<br><br> Tutorial: