• meanFindInAperture
  • medianFindInAperture
  • clippedMeanFindInAperture
  • tclAperture.c

    ABSTRACT:
    
    Measuring aperture counts in regions
    
    

    meanFindInAperture

     C ROUTINE CALLED :  
     MeanFindInAperture
     in atAperture.html
     
    
    TCL SYNTAX:
      meanFindInAperture  "<reg>" "<row>" "<col>" "<outRadius>" "-inRadius" 
    
    TCL HELP STRING:
      Find the mean pixel value in an annulus centered at (row,column)
    between inRadius and outRadius. Return a keyed list of the mean,
    meanErr, pixels (the number of pixels used) and retVal (return value:
    0 is ok; 1 if radius extends over edge of image; 2 if there is a
    serious memory problem)
    
    TCL ARGUMENTS:
                     : 
      "<reg>"      : the region to measure
      "<row>"      : row of aperture center
      "<col>"      : column of aperture center
      "<outRadius>" : outer radius (in pixels)
      "-inRadius"    : inner radius (in pixels)    Default : 0
    
    

    medianFindInAperture

     C ROUTINE CALLED :  
     MeanFindInAperture
     in atAperture.html
     
    
    TCL SYNTAX:
      medianFindInAperture  "<reg>" "<row>" "<col>" "<outRadius>" "-inRadius" 
    
    TCL HELP STRING:
      Find the median pixel value in an annulus centered at (row,column)
    between inRadius and outRadius. Return a keyed list of the mean,
    meanErr, pixels (the number of pixels used) and retVal (return value:
    0 is ok; 1 if radius extends over edge of image; 2 if there is a
    serious memory problem)
    
    TCL ARGUMENTS:
                     : 
      "<reg>"      : the region to measure
      "<row>"      : row of aperture center
      "<col>"      : column of aperture center
      "<outRadius>" : outer radius (in pixels)
      "-inRadius"    : inner radius (in pixels)    Default : 0
    
    

    clippedMeanFindInAperture

     C ROUTINE CALLED :  
     MeanFindInAperture
     in atAperture.html
     
    
    TCL SYNTAX:
      clippedMeanFindInAperture  "<reg>" "<row>" "<col>" "<outRadius>" "-inRadius" "-nsig" "-niter" 
    
    TCL HELP STRING:
      Find the clipped mean pixel value in an annulus centered at (row,column)
    between inRadius and outRadius.  Reject at nsig sigmas at each of niter
    iterations. Return a keyed list of the mean, meanErr, pixels (the number
    of pixels used) and retVal (return value:  0 is ok; 1 if radius extends
    over edge of image; 2 if there is a serious memory problem)
    
    TCL ARGUMENTS:
                     : 
      "<reg>"      : the region to measure
      "<row>"      : row of aperture center
      "<col>"      : column of aperture center
      "<outRadius>" : outer radius (in pixels)
      "-inRadius"    : inner radius (in pixels)    Default : 0
      "-nsig"        : number of sigmas for rejection    Default : 5.0
      "-niter"       : number of iterations    Default : 2