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Command: view2d | Section: 5 | Source: UNIX v10 | File: view2d.5
VIEW2D(5) File Formats Manual VIEW2D(5)
NAME
view2d - movie of a function f(x, y, t)
DESCRIPTION
Files of this format are produced by functions in view2d(3), and dis-
played by commands in view2d(1). A movie file consists of one or more
frames, each consisting of a header and a sequence of 16-bit signed in-
teger values for each pixel, scanned left to right and bottom to top.
(Left-to-right is the inner loop.)
The header consists of the 32-bit magic number 0135246, then eight
16-bit integers:
VER The version number.
NX, NY The number of pixels in the frame. These may not vary from
frame to frame.
u, v relate pixel values p in the file to user function values f by
p = u + f/2**v.
FIXUV normally 0; 1 if u, v, PMIN, PMAX of first frame give a bound
on the data in the entire file.
PMIN, PMAX
limits of the data; only used when FIXUV=1.
and finally a 16-byte ASCII representation of a floating point value:
TIME is a frame index, typically set to simulated time or to an iter-
ation counter. This need not be uniformly spaced from frame to
frame, but should be nondecreasing.
The range of displayable pixel values is [-32765,32765]. Values below
this range are deemed out of bounds and not plotted; values above are
reserved.
SEE ALSO
view2d(1), view2d(3)
VIEW2D(5)