std::vector<solar_system::observation> solar_system::observe_planets (double time) const { std::vector<observation> result; result.reserve(planets_.size()); auto rel (home_planet_orbit_.position(time)); for (const body& p : planets_) { auto pos (p.trajectory.position(time)); auto sph (to_spherical(pos - rel)); observation obs; obs.position = sph; obs.app_size = std::atan2(sph.z, p.size * 0.00001); obs.phase = std::acos(dot_prod(normalize(pos), normalize(rel))); result.push_back(obs); } return result; }
bool symmetry_detection_3d::run(viennamesh::algorithm_handle &) { // // std::cout << "dynamic: " << jacobi_polynom<double>(4,2,2) << std::endl; // std::cout << "static: " << static_jacobi_polynom<double,4>(2,2) << std::endl; // // return true; mesh_handle input_mesh = get_required_input<mesh_handle>("mesh"); int geometric_dimension = viennagrid::geometric_dimension( input_mesh() ); int cell_dimension = viennagrid::cell_dimension( input_mesh() ); data_handle<int> p = get_required_input<int>("p"); data_handle<double> relative_integrate_tolerance = get_required_input<double>("relative_integrate_tolerance"); data_handle<double> absolute_integrate_tolerance = get_required_input<double>("absolute_integrate_tolerance"); // data_handle<int> max_iteration_count = get_required_input<int>("max_iteration_count"); data_handle<double> mirror_symmetry_tolerance = get_required_input<double>("mirror_symmetry_tolerance"); data_handle<double> rotational_symmetry_tolerance = get_required_input<double>("rotational_symmetry_tolerance"); if (geometric_dimension != 3) return false; if (cell_dimension != 2) return false; typedef viennagrid::mesh MeshType; typedef point PointType; typedef viennagrid::result_of::const_vertex_range<MeshType>::type ConstVertexRangeType; typedef viennagrid::result_of::iterator<ConstVertexRangeType>::type ConstVertexRangeIterator; double max_size = 0.0; { ConstVertexRangeType vertices(input_mesh()); for (ConstVertexRangeIterator vit = vertices.begin(); vit != vertices.end(); ++vit) { double cur_size = viennagrid::norm_2( viennagrid::get_point(*vit) ); if (cur_size > max_size) max_size = cur_size; } } info(1) << "Before start" << std::endl; MeshType mesh; viennagrid::copy( input_mesh(), mesh ); viennagrid::scale( mesh, 1.0/max_size ); info(1) << "After copy/scale" << std::endl; viennautils::Timer timer; timer.start(); RealGeneralizedMoment m_real(2*p(), mesh); // , relative_integrate_tolerance(), absolute_integrate_tolerance(), max_iteration_count()); info(1) << "After calculating generalized moment (!!! took " << timer.get() << "sec !!!)" << std::endl; double sphere_radius = 1.0; if (get_input<double>("sphere_radius").valid()) sphere_radius = get_input<double>("sphere_radius")(); MeshType sphere; viennagrid::make_sphere_hull( sphere, viennagrid::make_point(0,0,0), sphere_radius, 4 ); viennagrid::quantity_field gradient_field_real(0, 1); gradient_field_real.set_name("gradient_real"); ConstVertexRangeType vertices(sphere); for (ConstVertexRangeIterator vit = vertices.begin(); vit != vertices.end(); ++vit) { PointType const & pt = viennagrid::get_point(*vit); double theta; double phi; double r; to_spherical(pt, theta, phi, r); double grad_real = m_real.grad(theta, phi, 1e-2); gradient_field_real.set(*vit, grad_real); } // { // int bench_count = 100000; // std::vector<double> v(bench_count); // viennamesh::LoggingStack s("bench"); // // for (int i = 0; i != bench_count; ++i) // v[i] = m_real.grad(i*0.1, i*0.2, 1e-2); // } info(1) << "After calculating sphere" << std::endl; set_output("sphere", sphere); set_output("mesh", mesh); quantity_field_handle quantities = make_data<viennagrid::quantity_field>(); quantities.set(gradient_field_real); set_output("sphere_quantities", quantities); // m_real.print(); // std::cout << std::endl; // std::cout << "m_real hast mirror symmetry: " << std::boolalpha << m_real.z_mirror_symmetry( mirror_symmetry_tolerance() ) << std::endl; // m_real.rotation_symmetry_angles(); // // rotational_symmetry_tolerance() ); // std::cout << std::endl; data_handle<viennamesh_point> rotation_vector = get_input<viennamesh_point>("rotation_vector"); data_handle<int> rotational_frequencies = get_input<int>("rotational_frequencies"); if (rotation_vector.valid()) { for (int i = 0; i != rotation_vector.size(); ++i) { point new_z = rotation_vector(i); info(1) << "Using rotation vector " << new_z << std::endl; RealGeneralizedMoment rotated_m = m_real.get_rotated(new_z); // rotated_m.print(); // std::cout << std::endl; info(1) << "rotated_m (z = "<< new_z << ") hast mirror symmetry: " << std::boolalpha << rotated_m.z_mirror_symmetry( mirror_symmetry_tolerance() ) << std::endl; // rotated_m.rotation_symmetry_angles(); // rotated_m.rotation_symmetry_angles( rotational_symmetry_tolerance() ); rotated_m.check_rotation_symmetry(M_PI); if (rotational_frequencies.valid()) { for (int i = 0; i != rotational_frequencies.size(); ++i) { int rotational_frequency = rotational_frequencies(i); double angle = 2*M_PI/rotational_frequency; info(1) << "Using rotational frequency " << rotational_frequency << " (angle = " << angle << ") error = " << rotated_m.check_rotation_symmetry(angle) << std::endl; } } } } return true; }
yaw_pitch solar_system::observe_sun (double time) const { auto pos (-home_planet_orbit_.position(time)); return to_spherical(pos); }