#include <interp.h>
Definition at line 254 of file interp.h.
Public Member Functions | |
cspline_interp (bool periodic=false) | |
Create a base interpolation object with natural or periodic boundary conditions. | |
virtual | ~cspline_interp () |
virtual int | alloc (size_t size) |
Allocate memory, assuming x and y have size size . | |
virtual int | init (const vec_t &xa, const vec_t &ya, size_t size) |
Initialize interpolation routine. | |
virtual int | free () |
Free allocated memory. | |
virtual int | interp (const vec_t &x_array, const vec_t &y_array, size_t size, double x, double &y) |
Give the value of the function ![]() | |
virtual int | deriv (const vec_t &x_array, const vec_t &y_array, size_t size, double x, double &dydx) |
Give the value of the derivative ![]() | |
virtual int | deriv2 (const vec_t &x_array, const vec_t &y_array, size_t size, double x, double &d2ydx2) |
Give the value of the second derivative ![]() | |
virtual int | integ (const vec_t &x_array, const vec_t &y_array, size_t size, double a, double b, double &result) |
Give the value of the integral ![]() | |
Protected Member Functions | |
void | coeff_calc (const double c_array[], double dy, double dx, size_t index, double *b, double *c2, double *d) |
Compute coefficients for cubic spline interpolation. | |
double | integ_eval (double ai, double bi, double ci, double di, double xi, double a, double b) |
An internal function to assist in computing the integral. | |
Protected Attributes | |
bool | peri |
True for periodic boundary conditions. | |
Storage for cubic spline interpolation | |
double * | c |
double * | g |
double * | diag |
double * | offdiag |
virtual int init | ( | const vec_t & | xa, | |
const vec_t & | ya, | |||
size_t | size | |||
) | [inline, virtual] |
Initialize interpolation routine.
Periodic boundary conditions
Natural boundary conditions
Reimplemented from base_interp.
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