How to make an axis that goes up and down?

I have a surf plot and I need one of the axis to do from 0 to 1 and then back to 0. Because I am plotting some data against the voltage of a triangle waveform. Is there a way to do this in matlab?

Like the y axis in the attached image that goes from -0.4 to 1.3 to -0.4.

Thank you in advance and have a nice day.

Answer 1

[Star Strider]

The tick values must be monotonically increasing or decreasing. The tick labels can be whatever you want.

x = 0:15;
y = -0.4:0.1:0.4;
z = repmat([y(1:5) flip(y(1:4))], numel(x), 1)';

figure
surf(x, y, z)
set(gca, 'YTick',[-0.4 0 0.4], 'YTickLabel', [-0.4 1.3 -0.4])
view(0,90)
xlabel('X')
ylabel('Y')

.

[Camilo Garcia]

Thank you, this worked as I wanted. Have a nice day.

[Star Strider]

As always, my pleasure!

You, too!