BilinearInterpolator Class Reference

Bilinear interpolation from data on a rectangular mesh. More...

#include <quasi2d.h>

Public Member Functions
void	setup (const dmatrix &data, const dvec &x, const dvec &y)
	Use the supplied data to set up the interpolation.
double	get (double x, double y) const
	Interpolate at point x,y.

Private Member Functions
void	initialize ()
	initialize internally used data structures

Private Attributes
dmatrix	data_
	Data values on a rectangular grid.
dvec	x_
dvec	y_
	x and y values defining the grid
std::map< double, size_t >	xi_
	Indices corresponding to x and y values to speed up interpolation.
std::map< double, size_t >	yi_

Detailed Description

Bilinear interpolation from data on a rectangular mesh.

The mesh spacing can be irregular in each direction.

Member Function Documentation

setup()

void BilinearInterpolator::setup	(	const dmatrix &	data,
		const dvec &	x,
		const dvec &	y
	)

Use the supplied data to set up the interpolation.

get()

double BilinearInterpolator::get	(	double	x,
		double	y
	)		const

Interpolate at point x,y.

initialize()

void BilinearInterpolator::initialize ( )

private

initialize internally used data structures

Member Data Documentation

data_

dmatrix BilinearInterpolator::data_

private

Data values on a rectangular grid.

x_

dvec BilinearInterpolator::x_

private

y_

dvec BilinearInterpolator::y_

private

x and y values defining the grid

xi_

std::map<double, size_t> BilinearInterpolator::xi_

private

Indices corresponding to x and y values to speed up interpolation.

yi_

std::map<double, size_t> BilinearInterpolator::yi_

private

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

• src/quasi2d.h
• src/quasi2d.cpp