A wrapper for general-relativity analytic solutions that loads the analytic solution and then adds a function that returns any combination of the Ccz4 evolution variables. Specifically, see Ccz4::fd::System.
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| Ccz4WrappedGr (const Ccz4WrappedGr &)=default |
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Ccz4WrappedGr & | operator= (const Ccz4WrappedGr &)=default |
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| Ccz4WrappedGr (Ccz4WrappedGr &&)=default |
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Ccz4WrappedGr & | operator= (Ccz4WrappedGr &&)=default |
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| Ccz4WrappedGr (const SolutionType &wrapped_solution) |
| auto | get_clone () const -> std::unique_ptr< evolution::initial_data::InitialData > override |
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template<typename... Tags> |
| tuples::TaggedTuple< Tags... > | variables (const tnsr::I< DataVector, volume_dim > &x, const double t, tmpl::list< Tags... >) const |
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template<typename Tag> |
| tuples::TaggedTuple< Tag > | variables (const tnsr::I< DataVector, volume_dim > &x, const double t, tmpl::list< Tag >) const |
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template<typename... Tags> |
| tuples::TaggedTuple< Tags... > | variables (const tnsr::I< DataVector, volume_dim > &x, tmpl::list< Tags... >) const |
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template<typename Tag> |
| tuples::TaggedTuple< Tag > | variables (const tnsr::I< DataVector, volume_dim > &x, tmpl::list< Tag >) const |
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void | pup (PUP::er &p) override |
| virtual const InitialData & | unwrap () const |
| | Unwrap wrapper types (e.g. WithNoise, which wraps analytic initial data and adds random noise) to reach the underlying analytic solution or data.
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template<typename SolutionType>
class Ccz4::Solutions::Ccz4WrappedGr< SolutionType >
A wrapper for general-relativity analytic solutions that loads the analytic solution and then adds a function that returns any combination of the Ccz4 evolution variables. Specifically, see Ccz4::fd::System.
The wrapper returns the everywhere-nonnegative lapse \(|\alpha|\) in place of the wrapped solution's lapse \(\alpha\), with the lapse derivative and time derivative scaled by \(\mathrm{sgn}(\alpha)\) (where \(\mathrm{sgn}(0) := 0\)). For solutions with positive lapse this is an exact no-op. For solutions whose lapse is negative somewhere (e.g. the lapse of gr::Solutions::HighSpinKerrPuncture inside its throat) the sign flip is pure gauge: the spatial metric and extrinsic curvature are unchanged.