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# Header file for the curve fitting package
# set up the curve descriptor structure
define LEN_CVSTRUCT 30
define CV_XMAX Memd[P2D($1)] # Maximum x value
define CV_XMIN Memd[P2D($1+2)] # Minimum x value
define CV_RANGE Memd[P2D($1+4)] # 2. / (xmax - xmin), polynomials
define CV_MAXMIN Memd[P2D($1+6)] # - (xmax + xmin) / 2., polynomials
define CV_SPACING Memd[P2D($1+8)] # order / (xmax - xmin), splines
define CV_USERFNCD Memd[P2D($1+10)]# Real version of above for cvrestore.
define CV_TYPE Memi[$1+12] # Type of curve to be fitted
define CV_ORDER Memi[$1+13] # Order of the fit
define CV_NPIECES Memi[$1+14] # Number of polynomial pieces - 1
define CV_NCOEFF Memi[$1+15] # Number of coefficients
define CV_NPTS Memi[$1+16] # Number of data points
define CV_XBASIS Memi[$1+17] # Pointer to non zero basis for single x
define CV_MATRIX Memi[$1+18] # Pointer to original matrix
define CV_CHOFAC Memi[$1+19] # Pointer to Cholesky factorization
define CV_VECTOR Memi[$1+20] # Pointer to vector
define CV_COEFF Memi[$1+21] # Pointer to coefficient vector
define CV_BASIS Memi[$1+22] # Pointer to basis functions (all x)
define CV_LEFT Memi[$1+23] # Pointer to first non-zero basis
define CV_WY Memi[$1+24] # Pointer to y * w (cvrefit)
define CV_USERFNC Memi[$1+25] # Pointer to external user subroutine
# one free slot left
# matrix and vector element definitions
define XBASIS Memd[$1] # Non zero basis for single x
define MATRIX Memd[$1] # Element of MATRIX
define CHOFAC Memd[$1] # Element of CHOFAC
define VECTOR Memd[$1] # Element of VECTOR
define COEFF Memd[$1] # Element of COEFF
define BASIS Memd[$1] # Element of BASIS
define LEFT Memi[$1] # Element of LEFT
# structure definitions for restore
define CV_SAVETYPE $1[1]
define CV_SAVEORDER $1[2]
define CV_SAVEXMIN $1[3]
define CV_SAVEXMAX $1[4]
define CV_SAVEFNC $1[5]
define CV_SAVECOEFF 5
# miscellaneous
define SPLINE3_ORDER 4
define SPLINE1_ORDER 2
define DELTA EPSILON
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