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// Example of using the GeographicLib::Geoid class
#include <iostream>
#include <exception>
#include <GeographicLib/Geoid.hpp>
using namespace std;
using namespace GeographicLib;
int main() {
try {
Geoid egm96("egm96-5");
// Convert height above egm96 to height above the ellipsoid
double lat = 42, lon = -75, height_above_geoid = 20;
double
geoid_height = egm96(lat, lon),
height_above_ellipsoid = (height_above_geoid +
Geoid::GEOIDTOELLIPSOID * geoid_height);
cout << height_above_ellipsoid << "\n";
}
catch (const exception& e) {
cerr << "Caught exception: " << e.what() << "\n";
return 1;
}
return 0;
}
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