Interpolation.hpp File Reference

Provides functions for linear interpolation on three-dimensional data. More...

#include <string>
#include <vector>

Go to the source code of this file.

Functions
double	lin_interp (double x_1, double y_1, double x_2, double y_2, double x)
	Performs linear interpolation.
int	find (vector< double > &arr, double v)
	Finds the array index for a value closest to the given value.
vector< double >	extractColumn (vector< vector< double > > &mat, int j)
	Extracts a column from a 2D matrix.
double	interpY (string filename, double x, double z)
	Linearly interpolates a y value at given x and z values.
double	interpZ (string filename, double x, double y)
	Linearly interpolates a z value at given x and y values.

Detailed Description

Provides functions for linear interpolation on three-dimensional data.

Author

Nikitha Krithnan and W. Spencer Smith

Note

Generated by Drasil v0.1-alpha

Function Documentation

extractColumn()

vector< double > extractColumn	(	vector< vector< double > > &	mat,
		int	j )

Extracts a column from a 2D matrix.

Parameters

mat	matrix from which column will be extracted
j	index

Returns

column of the given matrix at the given index

find()

int find	(	vector< double > &	arr,
		double	v )

Finds the array index for a value closest to the given value.

Parameters

arr	array in which value should be found
v	value whose index will be found

Returns

index of given value in given array

interpY()

double interpY	(	string	filename,
		double	x,
		double	z )

Linearly interpolates a y value at given x and z values.

Parameters

filename	name of file with x y and z data
x	x-coordinate to interpolate at
z	z-coordinate to interpolate at

Returns

y value interpolated at given x and z values

interpZ()

double interpZ	(	string	filename,
		double	x,
		double	y )

Linearly interpolates a z value at given x and y values.

Parameters

filename	name of file with x y and z data
x	x-coordinate to interpolate at
y	y-coordinate to interpolate at

Returns

z value interpolated at given x and y values

lin_interp()

double lin_interp	(	double	x_1,
		double	y_1,
		double	x_2,
		double	y_2,
		double	x )

Performs linear interpolation.

Parameters

x_1	lower x-coordinate
y_1	lower y-coordinate
x_2	upper x-coordinate
y_2	upper y-coordinate
x	x-coordinate to interpolate at

Returns

y value interpolated at given x value