SpECTRE
v2023.05.16

Control error in the 3D Rotation coordinate map. More...
#include <Rotation.hpp>
Public Types  
using  object_centers = domain::object_list< domain::ObjectLabel::A, domain::ObjectLabel::B > 
using  options = tmpl::list<> 
Public Member Functions  
void  pup (PUP::er &) 
template<typename Metavariables , typename... TupleTags>  
DataVector  operator() (const Parallel::GlobalCache< Metavariables > &cache, const double, const std::string &, const tuples::TaggedTuple< TupleTags... > &measurements) 
Static Public Attributes  
static constexpr size_t  expected_number_of_excisions = 2 
static constexpr Options::String  help 
Control error in the 3D Rotation coordinate map.
Computes the error in the angle rotated by the system using a slightly modified version of Eq. (41) from [126]. The equation is
\[ \delta\vec{q} = \frac{\vec{C}\times\vec{X}}{\vec{C}\cdot\vec{X}} \]
where \(\vec{X} = \vec{x}_A  \vec{x}_B\) and \(\vec{C} = \vec{c}_A  \vec{c}_B\). Here, object A is located on the positive xaxis and object B is located on the negative xaxis, \(\vec{X}\) is the difference in positions of the centers of the mapped objects, and \(\vec{C}\) is the difference of the centers of the excision spheres, all in the grid frame.
Requirements:

staticconstexpr 