How to make a surface plot for two vectors?

Question

stelios loizidis 2023-6-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1987174-how-to-make-a-surface-plot-for-two-vectors

回答： Walter Roberson 2023-6-23

Hello,

I have two row-vectors, A (1X8000) and B (1X8000). What I want is their surface plot. I tried the commands below:

surf(A,B)
colorbar

But it does not work. The following error occurs.

Error using surf
Z must be a matrix, not a scalar or vector.

How can the surface plot of the two variables be made? Your help is valuable.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Nitya Patel 2023-6-23

Depending on what your data represents, there could be different ways to do it. One of the ways possible is this:

M = [A; B]';

surf(M);

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2023-6-23

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1987174-how-to-make-a-surface-plot-for-two-vectors#answer_1261254

You cannot do that. surf() and surface() can only handle 2D grids of data. For surf() and surface() the X and Y data do not need to be rectangular or even rectilinear -- you can even use them to plot a hemi-sphere for example -- but they do need to be 2D.

If you had three vectors instead of two vectors, you could consider using tools such as griddata or scatteredInterpolant