3 ms·
> Because it describes movement as rotation from the infinitely far away point Doesn't this also work in normal geometry as the length of a translation goes to
by formerly_proven 5y ago
> Because it describes movement as rotation from the infinitely far away point
Doesn't this also work in normal geometry as the length of a translation goes to zero and the distance to the rotation's origin goes to infinity... because a big circle looks like a straight line up close?
- thesz 5y agoExactly. CGA has special point e_{inf} which is infinitely far away from any other regular point (with regular euclidian coordinates) and linear movements are rotations around that point.