%N grmker %F $MIR/src/grmker.f
%D Draw graph markers
%B
      SUBROUTINE GRMKER (SYMBOL,ABSXY,N,X,Y)

 GRPCKG: Draw a graph marker at a set of points in the current
 window. Line attributes (color, intensity, and  thickness)
 apply to markers, but line-style is ignored. After the call to
 GRMKER, the current pen position will be the center of the last
 marker plotted.

 Arguments:

 SYMBOL (input, integer): the marker number to be drawn. Numbers
       0-31 are special marker symbols; numbers 32-127 are the
       corresponding ASCII characters (in the current font). If the
       number is >127, it is taken to be a Hershey symbol number.
       If -ve, a regular polygon is drawn.
 ABSXY (input, logical): if .TRUE., the input corrdinates (X,Y) are
       taken to be absolute device coordinates; if .FALSE., they are
       taken to be world coordinates.
 N (input, integer): the number of points to be plotted.
 X, Y (input, real arrays, dimensioned at least N): the (X,Y)
       coordinates of the points to be plotted.
