celeritas::TwodGridCalculator Class Reference

Find and do bilinear interpolation on a nonuniform 2D grid of reals. More...

#include <TwodGridCalculator.hh>

Public Types
Type aliases
using	Point = Array< real_type, 2 >
using	Values = Collection< real_type, Ownership::const_reference, MemSpace::native >

Public Member Functions
CELER_FUNCTION	TwodGridCalculator (TwodGridData const &grid, Values const &storage)
	Construct with grids and node-centered data.
CELER_FUNCTION real_type	operator() (Point const &xy) const
	Calculate the value at the given (x, y) coordinates. More...
CELER_FUNCTION TwodSubgridCalculator	operator() (real_type x) const
	Get an interpolator for a preselected x value.

Detailed Description

Find and do bilinear interpolation on a nonuniform 2D grid of reals.

Values should be node-centered, at the intersection of the two grids.

TwodGridCalculator calc(grid, params.reals);
real_type interpolated = calc({energy.value(), exit});
// Or if the incident energy is reused...
auto calc2 = calc(energy.value());
interpolated = calc2(exit);

Member Function Documentation

operator()()

CELER_FUNCTION real_type celeritas::TwodGridCalculator::operator() ( Point const &  inp ) const

inline

Calculate the value at the given (x, y) coordinates.

The coordinates must be inside \(0 <= x < x_\mathrm{max}\) and \(0 <= y < y_\mathrm{max}\).

Todo:

We may need to add logic inside the axis loop to account for points outside the grid.

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

• TwodGridCalculator.hh