VIEW2D(1) VIEW2D(1)
NAME
view2d, regrid, vdata - movie of a function f(x, y, t)
SYNOPSIS
view2d [ option ... ] file
regrid [ option ... ] file
vdata [ option ... ] file
DESCRIPTION
View2d displays a sequence of functional surfaces on a Tele-
type 5620 or frame buffer. On the 5620, the surface is
ruled with a square mesh and projected isometrically; on a
frame buffer, the surface is viewed from above, with height
indicated by color. The options are
-T5 Output on the 5620;
-Tc Output on frame buffer (default); -Tc is assumed when
`TERM' is not 5620.
-Tp Produce input for plot(1) to produce contour plots.
-cn Use n colors (n=32 by default) or contours (6 by
default).
-ps Run movie for s seconds (s=5 by default).
There are two supported ways to generate input for view2d.
Vdata takes ASCII input and allows scattered data; view2d(3)
can be called from a program that already has data on a
grid.
Regrid changes the grid sizes in view2d binary files, with
options:
-b Add a bar at the bottom of the image to indicate time.
-nNX,NY
Output grid is NX×NY; ,NY may be omitted.
-fNF Output will have NF frames.
-r The plane of closest fit to the first frame is sub-
tracted from all the frames.
-mfmin,fmax
Clip the data to the range fmin,fmax.
VIEW2D(1) VIEW2D(1)
One option applies to both view2d and regrid:
-tTS,TE
Display frames from TS (default first frame time) to TE
(may be omitted, default last frame time).
Vdata takes input in the following format and converts to
input for view2d. The first line of each frame has the num-
ber of data points in the frame (an integer) and the time (a
floating point value). The rest of the lines in the frame
consist of blank-separated x y z triples. The order of
points is irrelevant. The options are:
-nNX,NY
Output grid is NX×NY; ,NY may be omitted.
-c Use piecewise constant rather than linear interpola-
tion.
-s Scatterplot the data on a black background.
-i The data is already on a square grid, in the order x
and y ascending with x varying fastest.
FILES
SEE ALSO
view2d(3), view2d(5), plot(1)
for more options and how to run equipment.