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);
}
