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- // (C) Copyright John Maddock 2007.
- // Use, modification and distribution are subject to the
- // Boost Software License, Version 1.0. (See accompanying file
- // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #include <boost/math/special_functions/spherical_harmonic.hpp>
- #include <fstream>
- #include <boost/math/tools/test_data.hpp>
- #include <boost/random.hpp>
- #include "mp_t.hpp"
- using namespace boost::math::tools;
- using namespace boost::math;
- using namespace std;
- float extern_val;
- // confuse the compilers optimiser, and force a truncation to float precision:
- float truncate_to_float(float const * pf)
- {
- extern_val = *pf;
- return *pf;
- }
- template<class T>
- boost::math::tuple<T, T, T, T, T, T> spherical_harmonic_data(T i)
- {
- static boost::mt19937 r;
- int n = real_cast<int>(floor(i));
- boost::uniform_int<> ui(0, (std::min)(n, 40));
- int m = ui(r);
-
- boost::uniform_real<float> ur(-2*constants::pi<float>(), 2*constants::pi<float>());
- float _theta = ur(r);
- float _phi = ur(r);
- T theta = truncate_to_float(&_theta);
- T phi = truncate_to_float(&_phi);
- T r1 = spherical_harmonic_r(n, m, theta, phi);
- T r2 = spherical_harmonic_i(n, m, theta, phi);
- return boost::math::make_tuple(n, m, theta, phi, r1, r2);
- }
- int main(int argc, char*argv [])
- {
- using namespace boost::math::tools;
- parameter_info<mp_t> arg1, arg2, arg3;
- test_data<mp_t> data;
- bool cont;
- std::string line;
- if(argc < 1)
- return 1;
- do{
- if(0 == get_user_parameter_info(arg1, "n"))
- return 1;
- arg1.type |= dummy_param;
- arg2.type |= dummy_param;
- arg3 = arg2;
- data.insert(&spherical_harmonic_data<mp_t>, arg1);
- std::cout << "Any more data [y/n]?";
- std::getline(std::cin, line);
- boost::algorithm::trim(line);
- cont = (line == "y");
- }while(cont);
- std::cout << "Enter name of test data file [default=spherical_harmonic.ipp]";
- std::getline(std::cin, line);
- boost::algorithm::trim(line);
- if(line == "")
- line = "spherical_harmonic.ipp";
- std::ofstream ofs(line.c_str());
- line.erase(line.find('.'));
- ofs << std::scientific << std::setprecision(40);
- write_code(ofs, data, line.c_str());
- return 0;
- }
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