Change axis color on parts of the mesh

I would like this plot to have 2 colors on the same surface, meaning: blue between the x values of 1 and 2 and then between 9 and 10 and red on the rest of it.

Here's the code:

[X,Y] = meshgrid(1:0.5:10,1:20);

Z = sin(X) + cos(Y);

surf(X,Y,Z)

Answer 1

[Voss]

Here's one way:

[X,Y] = meshgrid(1:0.5:10,1:20);
Z = sin(X) + cos(Y);
C = 1 + (X <= 2 | X >= 9);
surf(X,Y,Z,C)
colormap([1 0 0; 0 0 1]);

[Alexandra Roxana]

Great and easy! Thanks a lot!

[Voss]

You're welcome!