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SUBROUTINE PLRAX

   PLRAX plots a circular  axis for plotting in polar form. A series of concentric circles are drawn around (x,y) at increasing radi to the maximum radius. Provisions are included for half circle, quarter circle, etc. Labeling of starting points and ending points may be changed.

CALL PLRAX (x,y,r,as,ae,a0,a1)

x     (R): x coordinate of center of polar axis
y     (R): y coordinate of center of polar axis
r     (R): radius of polar axis in plot units
as    (R): starting angle of axis in degrees from horizontal
ae    (R): ending angle of axis in degrees from horizontal
           Note: as=0 and ae=360 yields full circle axis
a0    (R): number label of starting angle
a1    (R): number label of ending angle
           Note: if a0=a1 then angles are not labeled.



David Long
Wed Jun 12 10:34:11 MDT 1996