kml_v_?_interp2d_eval_deriv_xy_e

Return the partial derivative of the interpolation function at a given point (x, y). The interpolation object interp and data arrays xarr, yarr, and zarr are used in the calculation. Ensure that the x array is within the range of xarr or the y array is within the range of yarr.

Interface Definition

C interface:

int kml_v_float_interp2d_eval_deriv_xy_e(const kml_float_interp2d *interp, const float xarr[], const float yarr[], const float zarr[], const float x[], const float y[], size_t xin_size, size_t yin_size, float *z, size_t zin_size);

int kml_v_double_interp2d_eval_deriv_xy_e(const kml_double_interp2d *interp, const double xarr[], const double yarr[], const double zarr[], const double x[], const double y[], size_t xinSize, size_t yinSize, kml_interp_accel *xa, kml_interp_accel *ya, double *z, size_t zinSize);

Parameters

Parameter	Type	Description	Input/Output
interp	kml_float_interp2d, kml_double_interp2d	Pointer to an interpolation object.	Input
xarr	float, double	Array that stores the value of x.	Input
yarr	double	Array that stores the value of y.	Input
zarr	float, double	Array that stores the value of z.	Input
x	float, double	Array that stores the value of the solution point x.	Input
y	float, double	Array that stores the value of the solution point y.	Input
xinSize	size_t	Length of the x array.	Input
yinSize	size_t	Length of the y array.	Input
z	float , double	Pointer to the calculation result array of at the interpolation point.	Output
zinSize	size_t	Length of the calculation result array.	Input

Parent topic: v_interp2d