MATLAB: How to create cross-section from 3d dimensional surface

dimensional surfacesintersection

I transported the simulated surface's data as three (20×20) matrices X,Y,Z. So, I have a 3D plot that's generated by 3 (20×20) matrices X,Y,Z. I want to plot the YZ curve (cross section) at specified X. Moreover, the dimension of surface is really important to me, and I do not want to miss my surface feature or profile by interpolation?

Best Answer

You define your required x values and the respective y values, use interpolation (interp2).

Read about interp2 .

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MATLAB: 3D interpolation with interp3

interp3 isn't meant for scattered data. You should be using scatteredInterpolant.

MATLAB: Convert X,Y,Z column data into equally spacing grid of X,Y and corresponding Z

Let X,Y,Z be your data.

N = 500 ;
xi = lisnpace(min(X),max(X),N) ;
yi = lisnpace(min(Y),max(Y),N) ;
[Xi,Yi] = meshgrid(xi,yi) ;
Zi = griddata(X,Y,Z,Xi,Yi) ;

Best Answer

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MATLAB: 3D interpolation with interp3

MATLAB: Convert X,Y,Z column data into equally spacing grid of X,Y and corresponding Z

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