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       COMMAND

       rrrriiiinnnnccccrrrr ---- rrrraaaaddddiiiiuuuussss iiiinnnnccccrrrreeeemmmmeeeennnnttttiiiinnnngggg ccccoooommmmmmmmaaaannnndddd

       USAGE

       rrrriiiinnnnccccrrrr _u_m

       DESCRIPTION

       RRRRiiiinnnnccccrrrr enables you to modify the radial coordinates of an
       image in such a way as to increase or decrease all such
       radii by some constant integer increment.  Such an
       adjustment of radial data might be necessary or convenient,
       for example, in order to compensate for some small constant
       radial error due to digitizer calibration problems.

       This function uses a single argument specifying the value
       and sign of the correction to be applied.

       _u_m    Increment radius values by _u_m microns

       The increment specified must be an integer value expressed
       in microns.

       Example: rrrriiiinnnnccccrrrr 1111222222225555

       Increases each radius within the window by 1.225
       millimeters.






























