Slice through a surface plot to create a contour plot

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Mai Sakuragi 2020-3-3

评论： Mai Sakuragi 2020-3-3

This is my previous question.

I have the same 3D surface plot, and now I need to create a 2D coutour plot at z = 0.

Is there a way to do that? Thanks.

Now i have something like this by putting

contour(xMat,yMat,delta_r2)

right after

surfl(xMat,yMat,delta_r2,'light')

but when this is just notmal "surf" instead of "surfl" it doesn't work and I need a 2D contour plot, not a slice in a 3D plot.

Mohammad Sami 2020-3-3

I think if you have a function call to surf, you can just replace it with function call to contour and you will get your contour plot.

Mai Sakuragi 2020-3-3

Hi, thank you for your comment. Unfortunately I am dealing with numerical values and there are no functions...

The 3D plot on the website (previous question) was build with numerical values.

MATLAB Graphics 2-D and 3-D Plots Surfaces, Volumes, and Polygons Surface and Mesh Plots

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