Surf plot using meshgrid

Hello everybody,

I have a set of snr values for defects in a concrete specimen for different depths as attached in excel sheet. I used the wavelet method to analyze them into several levels.

Anyhow, I need them to be plotted into 3D by using the command surf. Would snybody help me with that?

Thank you in advance.

[Rik]

What have you already tried? Have you read the doc for the surf function?

[Mohanned Al Gharawi]

I'm trying to plot a 3D x-axis represents the defect depths, y-axis is the levels and the z-direction has the values of snr.

Thanks

Answer 1

[Shubham Gupta]

Try this :

snr_data = xlsread('snr values.xlsx');
depth = [1,2,3,5];
level = 1:7;
depth_mesh = meshgrid(depth,level).';
level_mesh = meshgrid(level,depth);
surf(depth_mesh,level_mesh,snr_data)

I hope it helps !

Answer 2

[Mohanned Al Gharawi]

Thank you so much, it worked.