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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <math/curfit.h>
include "dcurfitdef.h"
# CVSAVE -- Procedure to save the parameters of the fit for later
# use by cveval and cvvector. Only curve_type, order, xmin, xmax
# and the coefficients are saved. The parameters are saved in fit
# in the order curve_type, order, xmin, xmax, followed by the
# coefficients.
procedure dcvsave (cv, fit)
pointer cv # curve descriptor
double fit[ARB] # PIXEL array containing curve parameters
begin
# set common curve parameters
CV_SAVETYPE(fit) = CV_TYPE(cv)
CV_SAVEXMIN(fit) = CV_XMIN(cv)
CV_SAVEXMAX(fit) = CV_XMAX(cv)
if (CV_TYPE(cv) == USERFNC)
CV_SAVEFNC(fit) = CV_USERFNCD(cv)
# set curve-type dependent parmeters
switch (CV_TYPE(cv)) {
case LEGENDRE, CHEBYSHEV, USERFNC:
CV_SAVEORDER(fit) = CV_ORDER(cv)
case SPLINE1, SPLINE3:
CV_SAVEORDER(fit) = CV_NPIECES(cv) + 1
default:
call error (0, "CVSAVE: Unknown curve type.")
}
# set coefficients
if (CV_TYPE(cv) == USERFNC)
call amovd (COEFF(CV_COEFF(cv)), fit[CV_SAVECOEFF+1],
CV_NCOEFF(cv))
else
call amovd (COEFF(CV_COEFF(cv)), fit[CV_SAVECOEFF],
CV_NCOEFF(cv))
end
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