linint1D.c File Reference

Linear interpolation. More...

#include <stdlib.h>
#include <math.h>
#include "../ascot5.h"
#include "../spline/interp.h"
#include "linint.h"

Go to the source code of this file.

Functions
void	linint1D_init (linint1D_data *str, real *c, int n_x, int bc_x, real x_min, real x_max)
	Initialize linear interpolation struct for scalar 1D data.
int	linint1D_eval_f (real *f, linint1D_data *str, real x)
	Evaluate interpolated value of 1D scalar field.

Detailed Description

Linear interpolation.

Definition in file linint1D.c.

Function Documentation

linint1D_init()

void linint1D_init	(	linint1D_data *	str,
		real *	c,
		int	n_x,
		int	bc_x,
		real	x_min,
		real	x_max )

Initialize linear interpolation struct for scalar 1D data.

Parameters

str	pointer to struct to be initialized
c	array where data is stored
n_x	number of data points in the x direction
bc_x	boundary condition for x axis
x_min	minimum value of the x axis
x_max	maximum value of the x axis

Definition at line 22 of file linint1D.c.

linint1D_eval_f()

int linint1D_eval_f	(	real *	f,
		linint1D_data *	str,
		real	x )

Evaluate interpolated value of 1D scalar field.

This function evaluates the interpolated value of a 1D scalar field using linear interpolation.

Parameters

f	variable in which to place the evaluated value
str	data struct for data interpolation
x	x-coordinate

Returns

zero on success and one if x point is outside the grid.

< Normalized x coordinate in current cell

Definition at line 47 of file linint1D.c.