PLOT(5) 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 plot-
ting 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
character falls on the current point. The string is ter-
minated 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 circular arc. The least significant coordi-
nate of the end point is used only to determine the quad-
rant. The arc is drawn counter-clockwise.
c circle: The first four bytes give the center of the cir-
cle, 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 `dot-
dashed.' 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
PLOT(5) PLOT(5)
right corner. The plot will be magnified or reduced to
fit the device as closely as possible.
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 outside 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)