glenda.party
term% ls -F
term% cat index.txt
VIEW2D(1)                   General Commands Manual                  VIEW2D(1)



NAME
       view2d - 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 5620 or color
       display.  On the 5620, the surface is ruled with a square mesh and pro‐
       jected  isometrically;  on  a color display, the surface is viewed from
       above, with height indicated by color.  The options are:

       -T5   output on the 5620; -T5 is the default when TERM (see environ(7))
             is 5620.

       -Tc   output  on  color  display;  -Tc  is the default when TERM is not
             5620.

       -Tp   produces 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        adds a bar at the bottom of the image indicating time.

       -nNX[,NY] output grid is NX by NY.

       -fNF      output will have NF frames.

       -r        the plane of closest fit to the  first  frame  is  subtracted
                 from all the frames.

       -mfmin,fmax
                 clips the data to the range fmin,fmax.

       One option applies to both view2d and regrid:

       -tTS[,TE]
               displays  frames  from TS (default first frame time) to TE (de‐
               fault last frame time).

       Vdata takes input in the following format and  converts  to  input  for
       view2d.   The first line of each frame has the number 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 x y z triples.  The order of
       points is irrelevant.  Every (floating point or integer) number must be
       white space separated.  The options are:

       -nNX[,NY]
               output grid is NX by NY.

       -c      use piecewise constant rather than linear interpolation.

       -s      scatterplot the data on a black background.

       -i      the  data is already on a square grid, in the order x and y as‐
               cending with x varying fastest.

SEE ALSO
       view2d(3), view2d(5)
       Exotic options for photography, color maps, and halftone are  described
       in /usr/lib/view2d/howto.



                                                                     VIEW2D(1)