Is it possible to take a cross section at different points of a 3-D plot?

I have a script which when ran produces various 3 dimensional plots, I was wondering if there is any way to obtain a 2 dimensional plot for a given point along any of the axis?

Many thanks

C Boyce

Answer 1

[Star Strider]

If you want to see them parallel to the x or y axes it’s easy enough:

x = linspace(-2, 2, 25);
y = linspace(-pi, pi, 25);
[X,Y] = meshgrid(x,y);
Z = X.^2 + sin(Y);

figure(1)
surf(X, Y, Z)
grid on

iy = Y(X == 1);
iz = Z(X == 1);
figure(2)
plot(iy, iz)
grid on
title('Plot Z(Y,X=1)')

ix = X(Y == 3*pi/4);
iz = Z(Y == 3*pi/4);
figure(3)
plot(ix, iz)
grid on
title('Plot Z(X,Y=3*\pi/4)')

To see them at a particular value of z, use the contour function. To see them in any other orientation, use the slice function.

[C Boyce]

Sorry it took me a while to get back to you.

Yes this worked brilliantly, thank you so much, and thanks for your quick answer.

[Star Strider]

No worries! We all have lives outside MATLAB Answers.

Thank you. My pleasure.