Second X-Axis on Bottom of Contour Plot?

Hi everyone! I hope you are all well and safe.

Just a quick question: I have a contour plot and I'm trying to add a second x-axis to the bottom of the plot. So, in essence, both x-axes should appear at the bottom, one on top of the other. Any pointers? I tried following the instructions included in the MATLAB Help Center, but I was unsuccessful seeing as my x-axes appeared in the same position, thus jumbling up the labels. I am also unsure if there are different instructions for contour plots :(

Here's a look at what I'm working with:

contour(x, [2 4 8 12 16], 'b-', 'ShowText', 'on', 'LabelSpacing', 700)
xlim([205 245])
xticklabels([12 14 16 18 20 22 24 26 28])
xlabel('Latitude')
ylim([1 21])
yticklabels([975 925 875 825 775 725 650 550 450 350])
ylabel('Atmospheric Level (hPa)')
title('Specific Humidity')
legend('q (g / kg)')

[Ameer Hamza]

Can you show an example of where you want to place the 2nd x-axis?

[Michelle De Luna]

Ameer,

Thank you for your response! Of course. Here is a picture of the plot. I would like the second x-axis to fall just below the original x-axis, right around where the word "Latitude" is located (so, almost as if I was pressing "enter" and inserting the second x-axis below the first).

Thanks in advance!

Answer 1

[Ameer Hamza]

Check this example

ax1 = axes();
ax1.Position = ax1.Position+[0 0.07 0 0];
xlabel('First x-axis');

ax2 = axes();
ax2.Position = ax1.Position-[0 0.10 0 0];
ax2.Color = 'none';
ax2.YAxis.Visible = 'off';
xlabel('Second x-axis');