FreeMat
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Section: Handle-Based Graphics
This command generates contour plots where the lines are plotted in 3D. The syntax for its use is identical to the contour
function. Please see its help for details.
Here is a simple example of a 3D contour plot.
--> [x,y] = meshgrid([-2:.25:2]); --> z=x.*exp(-x.^2-y.^2); --> contour3(x,y,z,30); --> axis square; --> view(-15,25)
The resulting plot