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// Example of using the GeographicLib::SphericalEngine class
#include <iostream>
#include <exception>
#include <vector>
#include <GeographicLib/SphericalEngine.hpp>
using namespace std;
using namespace GeographicLib;
int main() {
// See also example-SphericHarmonic.cpp
try {
int N = 3; // The maxium degree
double ca[] = {10, 9, 8, 7, 6, 5, 4, 3, 2, 1}; // cosine coefficients
vector<double> C(ca, ca + (N + 1) * (N + 2) / 2);
double sa[] = {6, 5, 4, 3, 2, 1}; // sine coefficients
vector<double> S(sa, sa + N * (N + 1) / 2);
SphericalEngine::coeff c[1];
c[0] = SphericalEngine::coeff(C, S, N);
double f[] = {1};
double x = 2, y = 3, z = 1, a = 1;
double v, vx, vy, vz;
v = SphericalEngine::Value<true, SphericalEngine::FULL, 1>
(c, f, x, y, z, a, vx, vy, vz);
cout << v << " " << vx << " " << vy << " " << vz << "\n";
}
catch (const exception& e) {
cerr << "Caught exception: " << e.what() << "\n";
return 1;
}
return 0;
}
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