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// Example of using the GeographicLib::NormalGravity class
#include <iostream>
#include <exception>
#include <GeographicLib/NormalGravity.hpp>
#include <GeographicLib/Constants.hpp>
using namespace std;
using namespace GeographicLib;
int main() {
try {
NormalGravity grav(Constants::WGS84_a(), Constants::WGS84_GM(),
Constants::WGS84_omega(), Constants::WGS84_f());
// Alternatively: const NormalGravity& grav = NormalGravity::WGS84();
double lat = 27.99, h = 8820; // Mt Everest
double gammay, gammaz;
grav.Gravity(lat, h, gammay, gammaz);
cout << gammay << " " << gammaz << "\n";
}
catch (const exception& e) {
cerr << "Caught exception: " << e.what() << "\n";
return 1;
}
}
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