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VIEW2D(1) General Commands Manual 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 Teletype 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 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 NXxNY; ,NY may be omitted. -fNF Output will have NF frames. -r The plane of closest fit to the first frame is subtracted from all the frames. -mfmin,fmax Clip the data to the range fmin,fmax. 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 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 blank-separated x y z triples. The order of points is irrelevant. The options are: -nNX,NY Output grid is NXxNY; ,NY may be omitted. -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. FILES SEE ALSO view2d(3), view2d(5), plot(1) for more options and how to run equipment. VIEW2D(1)