doInterpolate method
Implementation
@override
T doInterpolate(double t) {
var vector = SphericalUtil.vectorSlerpOptimized(
_preListFloat32x4, _lastFloat32x4, _step, t);
var latLng = SphericalUtil.vectorToPolarOptimized(vector);
//debugPrint('($t): [${latLng.latitude},${latLng.longitude}]');
return latLng as T;
}