How to make a cross section of the 3D plot ?

How can I make a cross section of this plot.

I am want to get something like this but only one line of it (outline).

[Adam Danz]

Assuming your 3D plot was created by a vector of x coordinates, a vector of y coordinates, and a matrix of z coordinates, if you want a 2D slice along the XZ plane, you just need to choose a slice from your z-matrix (ie, a row or a column) and plot that vector against your x-vector.

Answer 1

[Star Strider]

Choose the appropriate ‘X’ and ‘Z’ (or ‘Y’ and ‘Z’) values from the matrix to get a cross-section.

[X,Y,Z] = peaks(50);

figure
surf(X,Y,Z)
xlabel('X')
ylabel('Y')

figure
plot(X(24,:),Z(24,:))
grid

figure
plot(X(11,:),Z(11,:))
grid

.

[elaheh ghanati]

isnt this the plot of Z vs Y. As the changing factor is y coordinate