toLookAngle method
Converts to LookAngle.
Implementation
LookAngle toLookAngle() {
final range = sqrt(south * south + east * east + normal * normal);
final elevation = asin(normal / range);
final azimuth = atan2(-east, south) + pi;
return LookAngle(
azimuth: Angle.radian(azimuth),
elevation: Angle.radian(elevation),
range: range);
}