Live Demonstrations — 3D Globe vs. his AE Disc

← Back to the review · same lat/lon waypoints driving both views, computed from the subject model's own greatCircleArc and projected through his own canonicalLatLongToDisc

The setup. Both views below render the same lat/lon points, generated by the subject model's own greatCircleArc() function from js/data/flightRoutes.js. The left view places those points on a 3D globe (unit sphere). The right view projects the same points through the subject's own canonicalLatLongToDisc() from js/core/canonical.js — the hard-coded north-pole AE projection his simulator uses for every coordinate operation. One input, two visualizations. Any disagreement between them is a property of his projection, not of different math.

Globe view (3D)

unit sphere · same lat/lon waypoints

His AE disc (canonical)

canonicalLatLongToDisc · north-pole AE

Speed: 1.00× Drag the globe to rotate. Both views animate together.

Numbers (computed live from his own functions)

More demonstrations

Earlier focused demonstrations that were the v1 of this page — kept available because they make some specific points more crisply than the side-by-side comparison does.

Three short demonstrations — equal-arc disc-length ratios, QF27/28 in mph (showing his deg/h units are mph divided by Earth circumference), and one-geometry-twenty-skins (all 20 of his projection options share the same coordinate framework).
Stylized recreation + overlay — the original v1 prototype. An SVG recreation of his Equal Arc Flight (N/S) (Mirror lat) demo with red callout cards layered on top. Predates the screenshot/iframe approaches.