38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
// Example of using the GeographicLib::SphericalHarmonic2 class
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#include <iostream>
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#include <exception>
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#include <vector>
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#include <GeographicLib/SphericalHarmonic2.hpp>
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using namespace std;
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using namespace GeographicLib;
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int main() {
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try {
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int N = 3, N1 = 2, N2 = 1; // The maxium degrees
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double ca[] = {10, 9, 8, 7, 6, 5, 4, 3, 2, 1}; // cosine coefficients
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vector<double> C(ca, ca + (N + 1) * (N + 2) / 2);
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double sa[] = {6, 5, 4, 3, 2, 1}; // sine coefficients
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vector<double> S(sa, sa + N * (N + 1) / 2);
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double cb[] = {1, 2, 3, 4, 5, 6};
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vector<double> C1(cb, cb + (N1 + 1) * (N1 + 2) / 2);
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double sb[] = {3, 2, 1};
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vector<double> S1(sb, sb + N1 * (N1 + 1) / 2);
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double cc[] = {2, 1};
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vector<double> C2(cc, cc + (N2 + 1));
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vector<double> S2;
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double a = 1;
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SphericalHarmonic2 h(C, S, N, N, N, C1, S1, N1, N1, N1,
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C2, S2, N2, N2, 0, a);
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double tau1 = 0.1, tau2 = 0.05, x = 2, y = 3, z = 1;
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double v, vx, vy, vz;
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v = h(tau1, tau2, x, y, z, vx, vy, vz);
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cout << v << " " << vx << " " << vy << " " << vz << "\n";
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}
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catch (const exception& e) {
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cerr << "Caught exception: " << e.what() << "\n";
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return 1;
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}
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}
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