PLOT(5) GENIX Programmer's Manual PLOT(5)
NAME
plot - graphics interface
DESCRIPTION
Files of this format are produced by routines described in plot(3),
and are interpreted for various devices by commands described in
plot(1). A graphics file is a stream of plotting instructions.
Each instruction consists of an ASCII letter usually followed by
bytes of binary information. The instructions are executed in
order. A point is designated by four bytes representing the x and y
values; each value is a signed integer. The last designated point
in an l, m, n, or p instruction becomes the `current point' for the
next instruction.
Each of the following descriptions begins with the name of the
corresponding routine in plot(3).
m move: The next four bytes give a new current point.
n cont: Draw a line from the current point to the point given by
the next four bytes. See plot(1).
p point: Plot the point given by the next four bytes.
l line: Draw a line from the point given by the next four bytes to
the point given by the following four bytes.
t label: Place the following ASCII string so that its first charac-
ter falls on the current point. The string is terminated by a
newline.
a arc: The first four bytes give the center, the next four give the
starting point, and the last four give the end point of a circu-
lar arc. The least significant coordinate of the end point is
used only to determine the quadrant. The arc is drawn counter-
clockwise.
c circle: The first four bytes give the center of the circle, the
next two the radius.
e erase: Start another frame of output.
f linemod: Take the following string, up to a newline, as the style
for drawing further lines. The styles are `dotted,' `solid,'
`longdashed,' `shortdashed,' and `dotdashed.' Effective only in
plot 4014 and plot ver.
s space: The next four bytes give the lower left corner of the
plotting area; the following four give the upper right corner.
The plot will be magnified or reduced to fit the device as
closely as possible.
Printed 11/16/83 1
PLOT(5) GENIX Programmer's Manual PLOT(5)
Space settings that exactly fill the plotting area with unity
scaling appear below for devices supported by the filters of
plot(1). The upper limit is just outside the plotting area. In
every case the plotting area is taken to be square; points out-
side may be displayable on devices whose face isn't square.
4014 space(0, 0, 3120, 3120);
ver space(0, 0, 2048, 2048);
300, 300s space(0, 0, 4096, 4096);
450 space(0, 0, 4096, 4096);
SEE ALSO
plot(1), plot(3), graph(1)
Printed 11/16/83 2