TRIPP_DEFINE_MASK_AUTOHELP

       Defines the mask of the image automatically for the number of
       sources defined in the logfile. Will define six background
       regions for each selected source.

       Astronomical Photometry.

       TRIPP_DEFINE_MASK_AUTOHELP, log,image,silent,$
                               BACK_POSX,BACK_POSY,BACK_SUM,BX,BY,CUT,$
                               HSIDE,ISIZE,IXH,IXL,IYH,IYL,$
                               JLOW,JHIGH,JOFFSET,$
                               RAD,SX,SY

       logname   : the reduction logfile name
       log       : the reduction logfile variables
       image     : the image for which a mask will be defined
       BACK_POSX : empty array needed for internal positioning of
                   background fields
       BACK_POSY : empty array needed for internal positioning of
                   background field
       BACK_SUM  : empty array needed for internal positioning of
                   background field
       CUT       : defines rejection of background fields
       HSIDE     : half length of mask background box
       ISIZE     : image size
       IXH       : highest pixel number in x direction
       IXL       : lowest pixel number in xdirectio
       IYH       : highest pixel number in y direction
       IYL       : lowest pixel number in y direction
       RAD       : extraction radii
       XPOS      : x position of pivot point; make first entry in sx
       YPOS      : y position of pivot point; make first entry in sy

       silent    : prevent screen output and disable

       BX      : x-coordinates of background fields with (6 * # sources) entries
       BY      : y-coordinates of background fields with (6 * # sources) entries
       SX      : x-coordinates of stars
       SY      : y-coordinates of stars
       SNAME   : Reference name/number of stars
       JLOW    : index of faintest background field to use
       JHIGH   : index of brightest background field to use
       JOFFSET : offset used to reorder array of background field positions
                   equals 0 if 2 brightest bg fields are rejected
                   equals 1 if brightest & faintest bg field rejected
                   equals 2 if 2 faintest bg fields rejected

       Version 1.0, 2004      , S.D. Huegelmeyer, S. Schuh
                    2006/03     S.S., obsoleted ccd_quad

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