February 2012
Beginner to intermediate
220 pages
5h 8m
English
Content preview from gnuplot Cookbook
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Coloring the surface
The wireframe splot with hidden line removal that we covered in the first recipe of this chapter, Making a surface plot, gives the visual impression of a solid surface. The numerical value encoded into the surface's height can be visually estimated, roughly, by the perspective provided by the isolines in conjunction with the tics on the vertical axis. But gnuplot also has a way to draw real solid surfaces whose height is indicated by color or shade.
The previous figure shows the same mathematical function plotted in the first recipe in this chapter (Making a surface plot). Now the numerical value of the function at any point ...
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