.BG
.VE $Header: /usr3/s/current/s/.help/RCS/pic,v 1.2 83/12/30 19:32:00 rab Exp $
.FN pic
.TL
pic: Produce Graphics on Phototypesetter via pic
.CS
pic
.PP
This function produces a file of commands which are compatible with
the pic troff preprocessor.
The file, named "pic.out",
can be given alone as input to the `pic' program, or included in documents
by the construction
    .PS <pic.out
in the midst of text.
.PP
The pic.out file may contain more than one picture, each bracketed
by ".PS/.PE" lines.
Since the file is ASCII text, it can be read and edited by the user.
.PP
When graphic input (`identify', `rdpen') is requested, the prompt
`x,y:' appears on the users terminal, and the user should type the
(x,y) coordinate pair of the point to be input.  To terminate the
input, hit carriage return.  Graphic input is not allowed in batch
mode.
.PP
A device must be specified before any graphics functions can be used.
.EX
pic
plot(hstart)
q    # exit from S

pic \-Taps pic.out | troff \-Taps >troff.out
     # now send file to aps phototypesetter
.KW device*
.KW UNIX
.WR
