/usr/share/doc/libgeographic-dev/examples/example-Constants.cpp is in libgeographic-dev 1.49-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | // Example of using the GeographicLib::Constants class
#include <iostream>
#include <exception>
#include <GeographicLib/Constants.hpp>
using namespace std;
using namespace GeographicLib;
int main() {
try {
cout << "WGS84 parameters:\n"
<< "a = " << Constants::WGS84_a() << " m\n"
<< "f = 1/" << 1/Constants::WGS84_f() << "\n";
}
catch (const exception& e) {
cerr << "Caught exception: " << e.what() << "\n";
return 1;
}
}
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