.BG
.VE $Header: /usr/s/current/s/.help/RCS/imagen,v 1.3 87/05/22 10:28:51 rab Exp $
.FN imagen
.FN imagenh
.FN imagenv
.TL
imagenh imagenv: Produce Graphics on Imagen Printers
.CS
imagenh()
imagenv()
.PP
These functions produce a file, "imagen.out",
of commands in the Impress language which can be sent to
an imagen laser printer.
Function `imagenh' produces plots with the long side of the
paper containing the horizontal (X) axis.
Function `imagenv' produces plots with the long side of the
paper containing the vertical (Y) axis.
.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
The driver supports 8 line types, solid, dotted, short-dash, dash,
long-dash, dot short-dash, dot dash, and dot long-dash.
Character size and font cannot be changed from the default 12-point
Courier.
Characters can be rotated in multiples of 90 degrees.
.PP
The driver was written by Ross Ihaka and Geoff Collyer.
.PP
A device must be specified before any graphics functions can be used.
.EX
imagenh
plot(hstart)
q    # exit from S

lp imagen.out   # send output to laser printer
.KW device*
.KW UNIX
.WR
