Function PseudoMercator.ellipsoid
Source ellipsoid retained by the operation.
Example
Example reading the source ellipsoid.
import geodesy;
const projection = PseudoMercator!double .fromParameters(
wgs84!double(),
Longitude!double .fromDegrees(0.0),
500_000.0,
1_000_000.0);
assert(projection .ellipsoid .semiMajorAxis == 6_378_137.0);