25 lines
671 B
C++
25 lines
671 B
C++
// Example of using the GeographicLib::GravityModel class
|
|
// This requires that the egm96 gravity model be installed; see
|
|
// https://geographiclib.sourceforge.io/C++/doc/gravity.html#gravityinst
|
|
|
|
#include <iostream>
|
|
#include <exception>
|
|
#include <GeographicLib/GravityModel.hpp>
|
|
|
|
using namespace std;
|
|
using namespace GeographicLib;
|
|
|
|
int main() {
|
|
try {
|
|
GravityModel grav("egm96");
|
|
double lat = 27.99, lon = 86.93, h = 8820; // Mt Everest
|
|
double gx, gy, gz;
|
|
grav.Gravity(lat,lon, h, gx, gy, gz);
|
|
cout << gx << " " << gy << " " << gz << "\n";
|
|
}
|
|
catch (const exception& e) {
|
|
cerr << "Caught exception: " << e.what() << "\n";
|
|
return 1;
|
|
}
|
|
}
|