SpECTRE
v2023.12.08

Control error in the 3D Translation coordinate map. More...
#include <Translation.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 ::TimescaleTuner< true > &tuner, const Parallel::GlobalCache< Metavariables > &cache, const double time, 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 Translation coordinate map.
Computes the error in how much the system has translated by using Eq. (42) from [137]. The equation is
\[ \left(0, \delta\vec{T}\right) = a\mathbf{q}\left(\mathbf{x}_A  \mathbf{c}_A  \mathbf{\delta q}\wedge\mathbf{c}_A  \frac{\delta a}{a}\mathbf{c}_A \right)\mathbf{q}^* \]
where object A is located on the positive xaxis in the grid frame, bold face letters are quaternions, vectors are promoted to quaternions as \( \mathbf{v} = (0, \vec{v}) \), \( \mathbf{q} \) is the quaternion from the Rotation map, \( a \) is the function \( a(t) \) from the CubicScale map, \( \mathbf{\delta q}\wedge\mathbf{c}_A \equiv (0, \delta\vec{q} \times \vec{c}_A) \), \( \delta\vec{q} \) is the Rotation control error, and \( \delta a\) is the Expansion control error.
Requirements:

staticconstexpr 