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# CENTER header file
define LEN_CENSTRUCT (36 + SZ_FNAME + 1)
# centering parameters
define AP_CENTERFUNCTION Memi[$1] # Centering algorithm
define AP_CAPERT Memr[P2R($1+1)] # Centering box half-width
define AP_CTHRESHOLD Memr[P2R($1+2)] # Threshold above cdatalimit
define AP_MAXSHIFT Memr[P2R($1+3)] # Maximum center shift
define AP_MINSNRATIO Memr[P2R($1+4)] # Minimum s/n ratio
define AP_CLEAN Memi[$1+5] # Clean before centering
define AP_RCLEAN Memr[P2R($1+6)] # Cleaning radius
define AP_RCLIP Memr[P2R($1+7)] # Clipping radius
define AP_SIGMACLEAN Memr[P2R($1+8)] # Sky sigma for cleaning
define AP_CMAXITER Memi[$1+9] # Maximum number of iterations
# centering buffers
define AP_CTRPIX Memi[$1+10] # Pointer to pixels
define AP_XCTRPIX Memi[$1+11] # Pointer to x coords (not used)
define AP_YCTRPIX Memi[$1+12] # Pointer to y coords (not used)
define AP_NCTRPIX Memi[$1+13] # Number of pixels (not used)
define AP_LENCTRBUF Memi[$1+14] # Centering buffer sz (not used)
define AP_CXCUR Memr[P2R($1+15)] # Centering buffer x center
define AP_CYCUR Memr[P2R($1+16)] # Centering buffer y center
define AP_CXC Memr[P2R($1+17)] # X center of subraster
define AP_CYC Memr[P2R($1+18)] # Y center of subraster
define AP_CNX Memi[$1+19] # Y dimension of subraster
define AP_CNY Memi[$1+20] # Y dimension of subraster
# center fitting output
define AP_OXINIT Memr[P2R($1+21)] # initial output x center
define AP_OYINIT Memr[P2R($1+22)] # initial output y center
define AP_XCENTER Memr[P2R($1+23)] # computed x center
define AP_YCENTER Memr[P2R($1+24)] # computed y center
define AP_OXCENTER Memr[P2R($1+25)] # computed output x center
define AP_OYCENTER Memr[P2R($1+26)] # computed output y center
define AP_XSHIFT Memr[P2R($1+27)] # total x shift
define AP_YSHIFT Memr[P2R($1+28)] # total y shift
define AP_OXSHIFT Memr[P2R($1+29)] # total output x shift
define AP_OYSHIFT Memr[P2R($1+30)] # total output y shift
define AP_XERR Memr[P2R($1+31)] # x error
define AP_YERR Memr[P2R($1+32)] # y error
define AP_CDATALIMIT Memr[P2R($1+33)] # min (max) of subraster
define AP_CSTRING Memc[P2C($1+34)]# centering algorithm id
# default setup values for centering parameters
define DEF_CENTERFUNCTION AP_CENTROID1D
define DEF_CAPERT 2.5
define DEF_CTHRESHOLD 0.0
define DEF_MINSNRATIO 1.0
define DEF_CMAXITER 10
define DEF_MAXSHIFT 1.0
define DEF_CLEAN NO
define DEF_RCLEAN 1.0
define DEF_RCLIP 2.0
define DEF_CLEANSIGMA 3.0
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