Name:         GRCHR0

Purpose:      support routine for GRCHAR and GRMARK

Category:     GRAPHICS

File:         pgplot.src

Author:       T.J. Pearson

Use:          see description below.

Description:

            SUBROUTINE GRCHR0 (WINDOW,CENTER,ORIENT,ABSXY,X0,Y0,STRING)
      
       GRPCKG (internal routine): Support routine for GRCHAR and GRMARK.
       Draw a string of characters.
      
       Arguments:
      
       WINDOW (input, logical): if .TRUE., the plot is windowed in the
            current window.
       CENTER (input, logical): if .TRUE., the first character of the string
            is centered at (X0,Y0); otherwise the bottom left corner of the
            first character is placed at (X0,Y0).
       ORIENT (input, real): the angle in degrees that the string is to make
            with the horizontal, increasing anticlockwise.
       ABSXY (input, logical): if .TRUE., (X0,Y0) are absolute device
            coordinates; otherwise they are world coordinates (the scaling
            transformation is applied).
       X0, Y0 (input, real): position of first character (see CENTER).
       STRING (input, character): the string of ASCII characters; control
            characters 0-20 have special representations; all other
            non-graphic characters are plotted as blank spaces.
      
       (1-Mar-1983)

Updates:      Oct 16, 1998: JPT automatically extracted from source.