SpECTRE  v2024.08.03
domain::FunctionsOfTime::IntegratedFunctionOfTime Class Reference

A function that is integrated manually. More...

#include <IntegratedFunctionOfTime.hpp>

Public Member Functions

 IntegratedFunctionOfTime (IntegratedFunctionOfTime &&)
 
 IntegratedFunctionOfTime (const IntegratedFunctionOfTime &)
 
IntegratedFunctionOfTimeoperator= (IntegratedFunctionOfTime &&)
 
IntegratedFunctionOfTimeoperator= (const IntegratedFunctionOfTime &)
 
 IntegratedFunctionOfTime (double t, std::array< double, 2 > initial_func_and_derivs, double expiration_time, bool rotation)
 Constructs the function using the initial time, initial values, derivative and expiration time. If rotation is true, the function will be converted to a quaternion before it is output as used by the Rotation map.
 
 WRAPPED_PUPable_decl_template (IntegratedFunctionOfTime)
 
 IntegratedFunctionOfTime (CkMigrateMessage *)
 
auto get_clone () const -> std::unique_ptr< FunctionOfTime > override
 
std::array< DataVector, 1 > func (double t) const override
 The DataVector can be of any size. More...
 
std::array< DataVector, 2 > func_and_deriv (double t) const override
 The DataVector can be of any size. More...
 
std::array< DataVector, 3 > func_and_2_derivs (double) const override
 The DataVector can be of any size. More...
 
void update (double time_of_update, DataVector updated_value_and_derivative, double next_expiration_time) override
 Updates the function to the next global time step. The updated_value_and_derivative argument needs to be a DataVector of size 2, with the zeroth element holding the function's value and the first element holding its derivative. If rotation_ is set to true, this corresponds to the angle and the angular velocity for a rotation about the z-axis. More...
 
double expiration_after (double time) const override
 The first expiration time after time. More...
 
std::array< double, 2 > time_bounds () const override
 Returns the domain of validity of the function. For FunctionsOfTime that allow a small amount of time extrapolation, time_bounds tells you the bounds including the allowed extrapolation interval. More...
 
void pup (PUP::er &p) override
 
- Public Member Functions inherited from domain::FunctionsOfTime::FunctionOfTime
 FunctionOfTime (FunctionOfTime &&)=default
 
FunctionOfTimeoperator= (FunctionOfTime &&)=default
 
 FunctionOfTime (const FunctionOfTime &)=default
 
FunctionOfTimeoperator= (const FunctionOfTime &)=default
 
virtual auto get_clone () const -> std::unique_ptr< FunctionOfTime >=0
 
virtual std::array< double, 2 > time_bounds () const =0
 Returns the domain of validity of the function. For FunctionsOfTime that allow a small amount of time extrapolation, time_bounds tells you the bounds including the allowed extrapolation interval. More...
 
virtual double expiration_after (double time) const =0
 The first expiration time after time. More...
 
virtual void update (double, DataVector, double)
 Updates the maximum derivative of the FunctionOfTime at a given time while also resetting the expiration. By default, a FunctionOfTime cannot be updated. More...
 
virtual std::array< DataVector, 1 > func (double t) const =0
 The DataVector can be of any size. More...
 
virtual std::array< DataVector, 2 > func_and_deriv (double t) const =0
 The DataVector can be of any size. More...
 
virtual std::array< DataVector, 3 > func_and_2_derivs (double t) const =0
 The DataVector can be of any size. More...
 
virtual std::vector< DataVectorfunc_and_all_derivs (double t) const
 All derivatives a function of time has to offer (because it can be more than 2) More...
 
 WRAPPED_PUPable_abstract (FunctionOfTime)
 

Friends

bool operator== (const IntegratedFunctionOfTime &lhs, const IntegratedFunctionOfTime &rhs)
 

Detailed Description

A function that is integrated manually.

Details

This function only works with global time steppers that have strictly positively increasing substeps. When evaluated at this global time step, it returns the function and first derivative at that time step. It therefore needs to be updated every time step with its current values.

Member Function Documentation

◆ expiration_after()

double domain::FunctionsOfTime::IntegratedFunctionOfTime::expiration_after ( double  time) const
overridevirtual

The first expiration time after time.

Details

For non-updatable functions, this returns infinity. For updatable functions, the first expiration time after time is found by determining the update immediately before time. The expiration time of this update is what is returned. If time happens to be an update itself, then the expiration of that update is returned.

Implements domain::FunctionsOfTime::FunctionOfTime.

◆ func()

std::array< DataVector, 1 > domain::FunctionsOfTime::IntegratedFunctionOfTime::func ( double  t) const
overridevirtual

The DataVector can be of any size.

Implements domain::FunctionsOfTime::FunctionOfTime.

◆ func_and_2_derivs()

std::array< DataVector, 3 > domain::FunctionsOfTime::IntegratedFunctionOfTime::func_and_2_derivs ( double  t) const
overridevirtual

The DataVector can be of any size.

Implements domain::FunctionsOfTime::FunctionOfTime.

◆ func_and_deriv()

std::array< DataVector, 2 > domain::FunctionsOfTime::IntegratedFunctionOfTime::func_and_deriv ( double  t) const
overridevirtual

The DataVector can be of any size.

Implements domain::FunctionsOfTime::FunctionOfTime.

◆ get_clone()

auto domain::FunctionsOfTime::IntegratedFunctionOfTime::get_clone ( ) const -> std::unique_ptr< FunctionOfTime >
overridevirtual

◆ time_bounds()

std::array< double, 2 > domain::FunctionsOfTime::IntegratedFunctionOfTime::time_bounds ( ) const
overridevirtual

Returns the domain of validity of the function. For FunctionsOfTime that allow a small amount of time extrapolation, time_bounds tells you the bounds including the allowed extrapolation interval.

Implements domain::FunctionsOfTime::FunctionOfTime.

◆ update()

void domain::FunctionsOfTime::IntegratedFunctionOfTime::update ( double  time_of_update,
DataVector  updated_value_and_derivative,
double  next_expiration_time 
)
overridevirtual

Updates the function to the next global time step. The updated_value_and_derivative argument needs to be a DataVector of size 2, with the zeroth element holding the function's value and the first element holding its derivative. If rotation_ is set to true, this corresponds to the angle and the angular velocity for a rotation about the z-axis.

Reimplemented from domain::FunctionsOfTime::FunctionOfTime.


The documentation for this class was generated from the following file: