|The PLplot Plotting Library: Programmer's Reference Manual|
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Plots a three dimensional surface plot within the environment set up
plw3d. The surface is defined by the two-dimensional array
z[i][j] being the
value of the function at (
y[j]). Note that the points in
y do not need to be equally
spaced, but must be stored in ascending order. The parameter
opt controls the way in
which the surface is displayed. For further details see the Section called Three Dimensional Surface Plots in Chapter 3.
The only difference between
plot3d is that
the bottom side of the surface, while
plot3d only draws the surface as
viewed from the top.
plot3d(x, y, z, opt, side)
This function is used in examples 11,21.