Add grid lines onto the 3D mesh plot

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Hi,

I have two different mesh plots for comparison below:

As you may have observed, the plot on top has the concrete black grid lines(forgive me if I used the wrong term), while the bottom plot only has blocks of colors. My goal is to make the plot on the bottom also have the grid lines like the top plot. I've tried to look up the document on mesh plot, but I couldn't find out how to do it. Could someone help me out on this problem, or point me to the right document / tutorial? Thanks so much!

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KSSV 2022-3-15

When you plot using Surf, default edgecolors will be on. How did you plot this, show us your code.

Mingze Yin 2022-3-16

Sorry for the late reply, I just tried surf and it helps, I was using mesh to plot all along.

However, may I also ask if there is any way to reduce the number of lines to any specific number? (For example, to display 100 lines instead of 1000) I realised that I have too many lines to be displayed so the whole plot looks black...

Thanks again!

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Answer 1

KSSV 2022-3-16

在 MATLAB Online 中打开

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[X,Y,Z] = peaks(1000) ; % data for demo 
surf(X,Y,Z)   % this will be black 
shading interp   % this will remove black lines 
hold on
idx = 1:20:1000 ;   % will draw grid with reduced resolution 
plot3(X(idx,idx),Y(idx,idx),Z(idx,idx),'k')
plot3(X(idx,idx)',Y(idx,idx)',Z(idx,idx)','k')