LookupTable

template<fgc4::utils::NumericScalar IndexType, fgc4::utils::NumericScalar StoredType = IndexType>
class LookupTable : public vslib::Component

Subclassed by vslib::PeriodicLookupTable< double, double >

Public Functions

inline LookupTable(std::string_view name, Component &parent, std::vector<std::pair<IndexType, StoredType>> &&values, const bool equal_binning = false) noexcept

Defines constructor for LookupTable Component.

Parameters:

• name – Name of this Component

• parent – Parent of this Component

• values – Vector with lookup table index-value pairs

• equal_binning – Flag signalling whether the lookup table indexing has equal spaced binning

inline StoredType interpolate(const IndexType input_x, const bool random_access = false) noexcept

Provides an interpolated y-axis value from the stored values closest to the provided x-axis input.

Parameters:

• input_x – X-axis input value

• random_access – Switch informing if the input_x is coming linearly or randomly, allows for binary search optimisation in the latter case

Returns:

Y-axis value result of the interpolation

inline const StoredType &operator[](const size_t index) const

Provides random-access operator overload to the index-th element of the stored lookup table’s y-axis value.

Parameters:

index – Index of the element to be returned

Returns:

Y-axis value of the function at the index

inline const auto &getData() const

Provides a const reference to the data table.

Returns:

Data table of index-value pairs

inline void reset() noexcept

Resets the Component to its initial state.