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# FITSKY definitions
# define the sky fitting algorithms
define AP_CONSTANT 1 # Use a constant sky
define AP_MODE 2 # Compute the mode of the sky pixels
define AP_CENTROID 3 # Compute the peak of the histogram
define AP_SKYFILE 4 # Get values from a file
define AP_HISTPLOT 5 # Mark the sky on a histogram plot
define AP_MEDIAN 6 # Take median of sky pixels
define AP_RADPLOT 7 # Mark sky on radial profile plot
define AP_GAUSS 8 # Non-linear fit to a Gaussian
define AP_OFILT 9 # Optimal filtering
define AP_CROSSCOR 10 # Cross correlation method
define AP_MEAN 11 # Compute the mean of the sky pixels
# define sky fitting errors (# 201 - 300)
define AP_OK 0 # No error
define AP_NOSKYAREA 201 # Width of the annulus is <= 0.0 pixels
define AP_SKY_OUTOFBOUNDS 202 # Sky annulus out of bounds
define AP_NOHISTOGRAM 203 # Cannot make a histogram
define AP_FLAT_HIST 204 # Histogram is flat or concave
define AP_NSKY_TOO_SMALL 205 # Too few points for fit
define AP_SKY_SINGULAR 206 # Fit is singular
define AP_SKY_NOCONVERGE 207 # Solution does not converge
define AP_NOGRAPHICS 208 # NULL graphics pointer
define AP_NOSKYFILE 209 # NULL sky file descriptor
define AP_EOFSKYFILE 210 # End of sky file
define AP_BADSKYSCAN 211 # Incomplete scan of sky file
define AP_BADPARAMS 212 # Non-physical parameters
# sky fitting parameters (# 201 - 300)
define SKYFUNCTION 201
define ANNULUS 202
define DANNULUS 203
define SKY_BACKGROUND 204
define K1 205
define BINSIZE 206
define SMOOTH 207
define SMAXITER 208
define SLOCLIP 209
define SHICLIP 210
define SNREJECT 211
define SLOREJECT 212
define SHIREJECT 213
define RGROW 214
define SKY_MODE 215
define SKY_SIGMA 216
define SKY_SKEW 217
define NSKY 218
define NSKY_REJECT 219
define SXCUR 220
define SYCUR 221
define OSXCUR 222
define OSYCUR 223
define SSTRING 224
# define sky fitting keywords
define KY_SSTRING "salgorithm"
define KY_ANNULUS "annulus"
define KY_DANNULUS "dannulus"
define KY_SKY_BACKGROUND "skyvalue"
define KY_K1 "khist"
define KY_BINSIZE "binsize"
define KY_SMOOTH "smooth"
define KY_SMAXITER "smaxiter"
define KY_SLOCLIP "sloclip"
define KY_SHICLIP "shiclip"
define KY_SNREJECT "snreject"
define KY_SLOREJECT "sloreject"
define KY_SHIREJECT "shireject"
define KY_RGROW "rgrow"
# define sky fitting units strings
#define UN_SSTRING "algorithm"
#define UN_ANNULUS "scaleunit"
#define UN_DANNULUS "scaleunit"
#define UN_SKY_BACKGROUND "counts"
#define UN_K1 "sigma"
#define UN_BINSIZE "sigma"
#define UN_SMOOTH "switch"
#define UN_SMAXITER "number"
#define UN_SLOCLIP "percent"
#define UN_SHICLIP "percent"
#define UN_SNREJECT "number"
#define UN_SLOREJECT "sigma"
#define UN_SHIREJECT "sigma"
#define UN_RGROW "scaleunit"
define UN_SALGORITHM "algorithm"
define UN_SSCALEUNIT "scaleunit"
define UN_SSIGMA "sigma"
define UN_SNUMBER "number"
define UN_SPERCENT "percent"
define UN_SCOUNTS "counts"
define UN_SSWITCH "switch"
# fitsky string definitions
define SSHOWARGS "|data|sky|"
define SFUNCS "|constant|mode|centroid|file|histplot|median|\
radplot|gauss|ofilter|crosscor|mean|"
define SCMDS "|annulus|dannulus|salgorithm|khist|sloreject|\
shireject|smaxiter|binsize|smooth|rgrow|snreject|skyvalue|mksky|sloclip|\
shiclip|"
define SCMD_ANNULUS 1
define SCMD_DANNULUS 2
define SCMD_SALGORITHM 3
define SCMD_KHIST 4
define SCMD_SLOREJECT 5
define SCMD_SHIREJECT 6
define SCMD_SMAXITER 7
define SCMD_BINSIZE 8
define SCMD_SMOOTH 9
define SCMD_RGROW 10
define SCMD_SNREJECT 11
define SCMD_SKYVALUE 12
define SCMD_MKSKY 13
define SCMD_SLOCLIP 14
define SCMD_SHICLIP 15
define SCMD_DATA 1
define SCMD_SKY 2
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