February 2012
Beginner to intermediate
220 pages
5h 8m
English
Content preview from gnuplot Cookbook
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Combining surfaces with images
It is possible to plot a surface and its projection as a color image on the x-y plane on the same graph. The two simultaneous views of the same data or function can be useful to bring out the topography of a complex surface.
The previous figure shows a simple trigonometric function of two variables displayed as a surface with its values simultaneously encoded into colors (or gray values) at the base of the plot.
How to do it…
The following script produces the previous figure as its output:
set iso 40 set samp 40 unset key set xrange [-pi:pi] set yrange [-pi:pi] f(x,y) = sin(x)*cos(y) set hidden front set xyplane at -1 ...
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