Slice through a surface plot to create a contour plot

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Mai Sakuragi
Mai Sakuragi 2020-3-3
评论： Mai Sakuragi 2020-3-3
https://www.mathworks.com/matlabcentral/answers/504436-slice-of-a-surface-plot-created-by-2d-data?s_tid=prof_contriblnk
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.
  2 个评论
Mohammad Sami
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
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.

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