(gnuplot.info)splot_overview


 `splot` (Note: splot ) can display a surface as a collection of points, or
 by connecting those points.  As with `plot` (Note: plot ), the points may be
 read from a data file or result from evaluation of a function at specified
 intervals, see `set isosamples`.  The surface may be approximated by
 connecting the points with straight line segments, see `set surface`
 (Note: surface ), in which case the surface can be made opaque with `set
 hidden3d.`  The orientation from which the 3d surface is viewed can be changed
 with `set view` (Note: view ).

 Additionally, for points in a grid format, `splot` can interpolate points
 having a common amplitude (see `set contour` (Note: contour )) and can then
 connect those new points to display contour lines, either directly with
 straight-line segments or smoothed lines (see `set cntrparams`).  Functions
 are already evaluated in a grid format, determined by `set isosamples`
 (Note: isosamples ) and  `set samples` (Note: samples ), while file data
 must either be in a grid format, as described in `data-file`
 (Note: data-file ), or be used to generate a grid (see `set dgrid3d`
 (Note: dgrid3d )).

 Contour lines may be displayed either on the surface or projected onto the
 base.  The base projections of the contour lines may be written to a
 file, and then read with `plot`, to take advantage of `plot`'s additional
 formatting capabilities.

automatically generated by info2www version 1.2.2.9