Splot

splot is the command for drawing 3-d plots (well, actually projections on a 2-d surface, but you knew that). It can create a plot from functions or a data file in a manner very similar to the plot command.

See plot (p. ) for features common to the plot (p. ) command; only differences are discussed in detail here. Note specifically plot's axes option is not available for splot.

Syntax:

     splot {<ranges>}
           <function> | "<datafile>" {datafile-modifiers}}
           {<title-spec>} {with <style>}
           {, {definitions,} <function> ...}

where either a 5#5function6#6 or the name of a data file enclosed in quotes is supplied. The function can be a mathematical expression, or a triple of mathematical expressions in parametric mode.

By default splot draws the xy plane completely below the plotted data. The offset between the lowest ztic and the xy plane can be changed by set ticslevel. The orientation of a splot projection is controlled by set view. See set view (p. ) and set ticslevel (p. ) for more information.

The syntax for setting ranges on the splot command is the same as for plot. In non-parametric mode, the order in which ranges must be given is xrange, yrange, and zrange. In parametric mode, the order is urange, vrange, xrange, yrange, and zrange.

The title option is the same as in plot. The operation of with is also the same as in plot, except that the plotting styles available to splot are limited to lines, points, linespoints, dots, and impulses; the error-bar capabilities of plot are not available for splot.

The datafile options have more differences.

See also show plot (p. ).