// NewSpline creates a new Spline struct
func New(s SplineType, xa, ya []float64) (*Spline, error) {
// Check inputs
nx := len(xa)
ny := len(ya)
if nx != ny {
return nil, fmt.Errorf("Incompatible dimensions in NewSpline: x(%d) != y(%d)", nx, ny)
}
// Convert type of spline
sptype, err := convertSplineType(s)
if err != nil {
return nil, err
}
// Create a new object
sp := new(Spline)
sp.sp = C.gsl_spline_alloc(sptype, C.size_t(nx))
sp.acc = C.gsl_interp_accel_alloc()
// Initialize the spline object
ret := C.gsl_spline_init(sp.sp, (*C.double)(&xa[0]), (*C.double)(&ya[0]), C.size_t(nx))
if ret != 0 {
return nil, gsl.Errno(ret)
}
return sp, nil
}
func SplineAlloc(t *GslInterpType, size int) *GslSpline {
_ref := C.gsl_spline_alloc((*C.gsl_interp_type)(unsafe.Pointer(t.Ptr())), C.size_t(size))
_result := &GslSpline{}
gogsl.InitializeGslReference(_result, uintptr(unsafe.Pointer(_ref)))
return _result
}