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Gmsh 2.2.6 (Default branch)
11-22-2008
Gmsh is an automatic 3D finite element grid generator with built-in CAD and post-processing facilities. Its design goal is to provide a simple meshing tool for academic problems with parametric input and advanced visualization capabilities. It is built around four modules: geometry, mesh, solver, and post-processing. The specification of any input to these modules is done either interactively using the graphical user interface (based on FLTK and OpenGL) or in ASCII text files using Gmsh's own scripting language. License: GNU General Public License (GPL) Changes:|
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graph(1g) graph(1g) Name graph - draw a graph Syntax graph [option...] Description The command with no options takes pairs of numbers from the standard input as abscissas and ordinates of a graph. Successive points are connected by straight lines. The graph is encoded on the standard output for display by the filters. If the coordinates of a point are followed by a nonnumeric string, that string is printed as a label beginning on the point. Labels may be surrounded with quotes "...", in which case they may be empty or contain blanks and numbers; labels never contain new lines. A legend indicating grid range is produced with a grid unless the -s option is present. If a specified lower limit exceeds the upper limit, the axis is reversed. Options -a Supplies abscissas automatically and uses next two arguments to set spacing and starting point. Spacing is given by the next argument (default 1). A second optional argument is the starting point for automatic abscissas (default 0 or lower limit given by -x). -b Breaks graph after each label in the input. -c Uses specified string (next argument) as label. -g Uses specified number (next argument) in setting up grid style: 0 (no grid), 1 (frame with ticks), and 2 (full grid). Default is 2. -h Uses specified number (next argument) as fraction of space for height. -l Uses specified string (next argument) as graph label. -m Uses specified number (next argument) in setting up line mode: 0 (disconnected) and 1 (connected). Default is 1. -r Uses specified number (next argument) as fraction of space to right before plotting. -s Saves screen (no erase) before plotting. -t Transposes vertical and horizontal axes. -u Uses specified number (next argument) as fraction of space to move up before plotting. -w Uses specified number (next argument) as fraction of space for width. -x [ l ] Determines x axis logarithmically. Next two arguments after l determine lower and upper x limits respectively. The third argument determines grid spacing on x axis. -y [ l ] Same as x but for y axis. Restrictions The command stores all points internally and drops those for which there is not room. Segments that run out of bounds are dropped, not windowed. Logarithmic axes may not be reversed. See Also plot(1g), spline(1g) graph(1g)