Class
NumCosmoMathSpline
Description [src]
abstract class NumCosmoMath.Spline : GObject.Object
{
/* No available fields */
}Base class for implementing splines.
This class comprises all functions to provide a NcmSpline, together with all
necessary methods.
Functions
ncm_spline_clear
Atomically decrements the reference count of s by one. If the reference count drops to 0,
all memory allocated by s is released. The pointer is set to NULL.
Instance methods
ncm_spline_acc
Enables or disables spline accelerator. Note that, if
enabled, the spline becomes non-reentrant. In other words,
if enable is TRUE, the spline evaluation is not thread safe.
Therefore, it should not be called concomitantly by two different threads.
ncm_spline_copy
This function copies the two NcmVector of the spline s into those two
NcmVector of a new NcmSpline.
ncm_spline_copy_empty
This function copies the spline s into an initialized empty NcmSpline of a specific type.
ncm_spline_eval_deriv_idx
Evaluates the derivative of the spline at x using the provided index i.
This function is useful when multiple splines share the same x vector and
the index is already known, avoiding redundant binary searches.
ncm_spline_eval_idx
Evaluates the spline at x using the provided index i. This function
is useful when multiple splines share the same x vector and the index
is already known, avoiding redundant binary searches.
ncm_spline_eval_integ_idx
Evaluates the integral of the spline from xi to xf using the provided
indices i and f. This function is useful when multiple splines share
the same x vector and the indices are already known, avoiding redundant
binary searches.
ncm_spline_free
Atomically decrements the reference count of s by one. If the reference count drops to 0,
all memory allocated by s is released.
ncm_spline_get_yv
This function returns the s NcmVector of the values of the function to be interpolated.
ncm_spline_new
This function returns a new NcmSpline, where the knots of this new spline are given
in the NcmVector xv and the values of the function, at those knots, to be interpolated are
given in the NcmVector yv.
ncm_spline_new_array
This function returns a new NcmSpline, where the knots of this new spline are given
in the GArray x and the values of the function, at those knots, to be interpolated are
given in the GArray y.
ncm_spline_new_data
This function returns a new NcmSpline, where the knots of this new spline are given
in the array x and the values of the function, at those knots, to be interpolated are
given in the array y.
ncm_spline_peek_acc
This function returns the spline accelerator if it is enabled. Otherwise, it returns NULL.
ncm_spline_peek_yv
This function returns the s NcmVector of the values of the function to be interpolated.
ncm_spline_post_prepare
Computes lookup buckets for the spline s to enable efficient evaluations
using #ncm_spline_eval. This function is always called by #ncm_spline_prepare()
after all necessary preparations are completed.
ncm_spline_prepare
This function prepares the spline s such that one can evaluate it (#ncm_spline_eval), as well as
to compute its first and second derivatives (#ncm_spline_eval_deriv, #ncm_spline_eval_deriv2)
and integration (#ncm_spline_eval_integ).
ncm_spline_prepare_base
This function computes the second derivatives of s and it is used to prepare a
bi-dimensional spline.
ncm_spline_set
This function sets both xv and yv vectors to s.
The two vectors must have the same length.
ncm_spline_set_array
This function sets x as the knot vector and y as the function values vector
of the spline.
ncm_spline_set_data_static
This function sets x as the knot vector and y as the function values vector
of the spline.
ncm_spline_set_func
This function automatically determines the knots of s in the interval [xi, xf] given a ftype and rel_error.
ncm_spline_set_func1
This function automatically determines the knots of s in the interval [xi, xf] given a ftype and rel_error.
ncm_spline_set_func_grid
This function fills the spline s with the function F values
in a uniform grid within the range [xi, xf] and a total of nnodes knots.
ncm_spline_set_func_grid1
This function fills the spline s with the function F values
in a uniform grid within the range [xi, xf] and a total of nnodes knots.
ncm_spline_set_func_scale
This function automatically determines the knots of s in the interval [xi, xf] given a ftype and rel_error.
ncm_spline_set_len
This function sets len as the length of the spline,
it allocates the necessary NcmVector. If it is already
allocated with different length it frees the current vectors
and allocates new ones.
ncm_spline_set_yv
This function sets yv as the function values vector. This NcmVector yv
comprises the function values computed at the knots of the spline.
Signals
Signals inherited from GObject (1)
GObject::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.
Class structure
struct NumCosmoMathSplineClass {
const gchar* (* name) (
NcmSpline* s
);
void (* reset) (
NcmSpline* s
);
void (* prepare) (
NcmSpline* s
);
void (* prepare_base) (
NcmSpline* s
);
gsize (* min_size) (
const NcmSpline* s
);
gdouble (* eval) (
const NcmSpline* s,
const gdouble x
);
gdouble (* deriv) (
const NcmSpline* s,
const gdouble x
);
gdouble (* deriv2) (
const NcmSpline* s,
const gdouble x
);
gdouble (* deriv_nmax) (
const NcmSpline* s,
const gdouble x
);
gdouble (* integ) (
const NcmSpline* s,
const gdouble xi,
const gdouble xf
);
NcmSpline* (* copy_empty) (
const NcmSpline* s
);
gdouble (* eval_idx) (
const NcmSpline* s,
const gdouble x,
const gsize i
);
gdouble (* deriv_idx) (
const NcmSpline* s,
const gdouble x,
const gsize i
);
gdouble (* integ_idx) (
const NcmSpline* s,
const gdouble xi,
const gsize i,
const gdouble xf,
const gsize f
);
}No description available.
Class members
name: const gchar* (* name) ( NcmSpline* s )No description available.
reset: void (* reset) ( NcmSpline* s )No description available.
prepare: void (* prepare) ( NcmSpline* s )No description available.
prepare_base: void (* prepare_base) ( NcmSpline* s )No description available.
min_size: gsize (* min_size) ( const NcmSpline* s )No description available.
eval: gdouble (* eval) ( const NcmSpline* s, const gdouble x )No description available.
deriv: gdouble (* deriv) ( const NcmSpline* s, const gdouble x )No description available.
deriv2: gdouble (* deriv2) ( const NcmSpline* s, const gdouble x )No description available.
deriv_nmax: gdouble (* deriv_nmax) ( const NcmSpline* s, const gdouble x )No description available.
integ: gdouble (* integ) ( const NcmSpline* s, const gdouble xi, const gdouble xf )No description available.
copy_empty: NcmSpline* (* copy_empty) ( const NcmSpline* s )No description available.
eval_idx: gdouble (* eval_idx) ( const NcmSpline* s, const gdouble x, const gsize i )No description available.
deriv_idx: gdouble (* deriv_idx) ( const NcmSpline* s, const gdouble x, const gsize i )No description available.
integ_idx: gdouble (* integ_idx) ( const NcmSpline* s, const gdouble xi, const gsize i, const gdouble xf, const gsize f )No description available.
Virtual methods
NumCosmoMath.SplineClass.copy_empty
This function copies the spline s into an initialized empty NcmSpline of a specific type.
NumCosmoMath.SplineClass.eval_idx
Evaluates the spline at x using the provided index i. This function
is useful when multiple splines share the same x vector and the index
is already known, avoiding redundant binary searches.
NumCosmoMath.SplineClass.prepare
This function prepares the spline s such that one can evaluate it (#ncm_spline_eval), as well as
to compute its first and second derivatives (#ncm_spline_eval_deriv, #ncm_spline_eval_deriv2)
and integration (#ncm_spline_eval_integ).
NumCosmoMath.SplineClass.prepare_base
This function computes the second derivatives of s and it is used to prepare a
bi-dimensional spline.