Reference Manual of the nadc-tools API and Libraries - SRON

2.11.3 NADC AKIMA PO
Identifier NADC AKIMA PO
Purpose evaluates the interpolation value on a new gridpoint x val
Usage NADC AKIMA PO( dim in, x in,
a coef, b coef, c coef, d coef, x val );
Input size t dim in : dimension of x in, y in
float *x in : x values
double *a coef : polynomial coefficients
double *b coef : polynomial coefficients
double *c coef : polynomial coefficients
double *d coef : polynomial coefficients
float x val : the abscissa at which you want a y-value
Returns the function value at point x val
Comment Given an n-dim. array of abscissa x in and arrays a, b, c, d of
polynomial coefficients as returned by the NADC AKIMA SU, this
subroutine returns the interpolated value at abscissa x val
The polynomial coefficients a,b,c,d must be known from a
call to subroutine ’NADC AKIMA SU’.
2.12 NADC ALLOC
Identifier NADC ALLOC
Author R.M. van Hees
Language ANSI-C
Purpose pointer testing and memory allocation
Comment contains ALLOC C2D, ALLOC S2D, ALLOC I2D, ALLOC R2D, ALLOC D2D
ALLOC I3D, ALLOC I4D,
FREE 2D, FREE 3D, and FREE 4D
2.12.1 ALLOC UC2D
Identifier ALLOC UC2D
Purpose allocate a unsigned character matrix with dimensions [ypix][xpix]
Usage plane = ALLOC UC2D( ypix, xpix );
Input size t ypix : Y dimension (slowest axis)
size t xpix : X dimension (fastest axis)
Returns pointer to allocated memory
Comment none
2.12.2 ALLOC C2D
Identifier ALLOC C2D
Purpose allocate a character data matrix with dimensions [ypix][xpix]
Usage plane = ALLOC C2D( ypix, xpix );
Input size t ypix : Y dimension (slowest axis)
size t xpix : X dimension (fastest axis)
Returns pointer to allocated memory
Comment none
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