int main() {
SGWayPoint a1(-93.216923, 44.880547, 0.0, SGWayPoint::WGS84, "KMSP");
SGWayPoint a2(-93.216923, 44.880547, 0.0, SGWayPoint::SPHERICAL, "KMSP");
int main() {
SGWayPoint a1(-93.216923, 44.880547, 0.0, SGWayPoint::WGS84, "KMSP");
SGWayPoint a2(-93.216923, 44.880547, 0.0, SGWayPoint::SPHERICAL, "KMSP");