How to extract values from plot?

1 次查看（过去 30 天）

Lu Da Silva 2021-3-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/759329-how-to-extract-values-from-plot

评论： dpb 2021-3-1

I created two plots using the fnplt function. One plot represents the chord length (c) over the radial position, the other the thickness (t) over the radial position (-> they both have the same x-axis).

I need to calculate the spar height h = c*t and plot h against the radial position.

How can I extract the c and t values at specific x-axis values (e.g. x=10, x=20, x=30)? Or perhaps an interpolation would make more sense in order to get a smoother graph?

Thanks in advance!