VIEW2D(5) VIEW2D(5) NAME view2d - movie of a function f(x, y, t) DESCRIPTION Files of this format are produced by 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 integer 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 is the version number, currently 3. NX, NY specify 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 val- ues 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 iteration counter. This need not be uniformly spaced from frame to frame, but should be nondecreas- ing. Any pixel value less than -32766 is treated as an `out of bounds' marker and is not displayed. Other pixel values lie in the range [-32765,32765]. SEE ALSO view2d(1), view2d(3)