examples/example-SphericalHarmonic.cpp
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1 // Example of using the GeographicLib::SphericalHarmonic class
2 
3 #include <iostream>
4 #include <exception>
5 #include <vector>
7 
8 using namespace std;
9 using namespace GeographicLib;
10 
11 int main() {
12  try {
13  int N = 3; // The maxium degree
14  double ca[] = {10, 9, 8, 7, 6, 5, 4, 3, 2, 1}; // cosine coefficients
15  vector<double> C(ca, ca + (N + 1) * (N + 2) / 2);
16  double sa[] = {6, 5, 4, 3, 2, 1}; // sine coefficients
17  vector<double> S(sa, sa + N * (N + 1) / 2);
18  double a = 1;
19  SphericalHarmonic h(C, S, N, a);
20  double x = 2, y = 3, z = 1;
21  double v, vx, vy, vz;
22  v = h(x, y, z, vx, vy, vz);
23  cout << v << " " << vx << " " << vy << " " << vz << "\n";
24  }
25  catch (const exception& e) {
26  cerr << "Caught exception: " << e.what() << "\n";
27  return 1;
28  }
29 }
e
Array< double, 1, 3 > e(1./3., 0.5, 2.)
GeographicLib
Namespace for GeographicLib.
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x
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h
const double h
Definition: testSimpleHelicopter.cpp:19
main
int main()
Definition: examples/example-SphericalHarmonic.cpp:11
vy
StridedVectorType vy(make_vector(y, *n, std::abs(*incy)))
GeographicLib::SphericalHarmonic
Spherical harmonic series.
Definition: SphericalHarmonic.hpp:69
pybind_wrapper_test_script.z
z
Definition: pybind_wrapper_test_script.py:61
y
Scalar * y
Definition: level1_cplx_impl.h:124
a
ArrayXXi a
Definition: Array_initializer_list_23_cxx11.cpp:1
C
Matrix< Scalar, Dynamic, Dynamic > C
Definition: bench_gemm.cpp:50
std
Definition: BFloat16.h:88
v
Array< int, Dynamic, 1 > v
Definition: Array_initializer_list_vector_cxx11.cpp:1
N
#define N
Definition: igam.h:9
S
DiscreteKey S(1, 2)
SphericalHarmonic.hpp
Header for GeographicLib::SphericalHarmonic class.
vx
StridedVectorType vx(make_vector(x, *n, std::abs(*incx)))


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autogenerated on Sun Dec 22 2024 04:11:31