terra::io::ScalarLookupTable2D< ScalarType > Struct Template Reference

Device-capable 2D scalar lookup table with bilinear interpolation. More...

#include <lookup_table_2d_reader.hpp>

Public Types
using	ViewType = Kokkos::View< ScalarType **, Kokkos::LayoutRight >

Public Member Functions
ScalarType	operator() (ScalarType x, ScalarType y) const
	Bilinearly interpolated value at physical coordinates (x, y).

Public Attributes
ViewType	data
	2D device view, indexed as data(ix, iy)
ScalarType	x_min
	x coordinate of grid point ix=0
ScalarType	y_min
	y coordinate of grid point iy=0
ScalarType	dx
	Spacing between grid points along x.
ScalarType	dy
	Spacing between grid points along y.
int	nx
	Number of grid points along x.
int	ny
	Number of grid points along y.

Detailed Description

template<typename ScalarType>
struct terra::io::ScalarLookupTable2D< ScalarType >

Device-capable 2D scalar lookup table with bilinear interpolation.

Holds a Kokkos::View with layout data(ix, iy) and scalar metadata that is trivially copyable to the device. All members are either arithmetic or Kokkos::View (which is itself device-copyable via a reference-counted handle), so the struct can be captured by value in a KOKKOS_LAMBDA.

Queries outside the table domain are clamped to the nearest boundary value; no extrapolation is performed.

Template Parameters

ScalarType

Floating-point type of the table values (typically double)

Member Typedef Documentation

ViewType

template<typename ScalarType >

using terra::io::ScalarLookupTable2D< ScalarType >::ViewType = Kokkos::View< ScalarType**, Kokkos::LayoutRight >

Member Function Documentation

operator()()

template<typename ScalarType >

ScalarType terra::io::ScalarLookupTable2D< ScalarType >::operator() ( ScalarType  x, ScalarType  y  ) const

inline

Bilinearly interpolated value at physical coordinates (x, y).

Queries outside [x_min, x_min+(nx-1)*dx] × [y_min, y_min+(ny-1)*dy] are clamped to the table boundary before interpolation.

Parameters

x	Physical x coordinate
y	Physical y coordinate

Returns

Interpolated (or clamped boundary) scalar value

Member Data Documentation

data

template<typename ScalarType >

ViewType terra::io::ScalarLookupTable2D< ScalarType >::data

2D device view, indexed as data(ix, iy)

dx

template<typename ScalarType >

ScalarType terra::io::ScalarLookupTable2D< ScalarType >::dx

Spacing between grid points along x.

dy

template<typename ScalarType >

ScalarType terra::io::ScalarLookupTable2D< ScalarType >::dy

Spacing between grid points along y.

nx

template<typename ScalarType >

int terra::io::ScalarLookupTable2D< ScalarType >::nx

Number of grid points along x.

ny

template<typename ScalarType >

int terra::io::ScalarLookupTable2D< ScalarType >::ny

Number of grid points along y.

x_min

template<typename ScalarType >

ScalarType terra::io::ScalarLookupTable2D< ScalarType >::x_min

x coordinate of grid point ix=0

y_min

template<typename ScalarType >

ScalarType terra::io::ScalarLookupTable2D< ScalarType >::y_min

y coordinate of grid point iy=0

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

• lookup_table_2d_reader.hpp