How can overlay two contour plot in a subplot?

Question

Lemuel Carlos Ramos Arzola 2020-2-7

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/504266-how-can-overlay-two-contour-plot-in-a-subplot

回答： Lemuel Carlos Ramos Arzola 2020-2-9

Hello,

I am trying to plot and overlay two contour plots in the same figure but with some specifications. Both plots share the same x and y coordinates (and scales).

1. This two contour plot must be in a subplot of 2x1.

subplot(2,1,1)

2. The first contour plot (background) must be with lines and filled with his own colorbar.

Z1 = peaks;
contourf(Z1,'--')
colorbar
axis equal

3. The second contour plot (foreground) must overlay the first one and NOT be filled, just lines without colorbar.

Z2 = peaks.^2;
contour(Z2,'-')
axis equal

I am not using my real data for simplicity. How can we overlay this plots? Without destroying the first plot (preserve colors and colorbar). I reviewed these links but when I use the subplot function it does not work.

https://www.mathworks.com/matlabcentral/answers/332806-how-do-i-overlay-contour-plots-with-a-different-color-map-for-each-overlay

https://www.mathworks.com/matlabcentral/answers/194554-how-can-i-use-and-display-two-different-colormaps-on-the-same-figure

Thanks in advance for the answers.

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Answer 1

Lemuel Carlos Ramos Arzola 2020-2-9

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/504266-how-can-overlay-two-contour-plot-in-a-subplot#answer_414650

在 MATLAB Online 中打开

I found this solution

Z1 = peaks;
Z2 = peaks.^2;
ax = subplot(2,1,1);
hold on
contourf(Z1,'--')
colorLim = ax.CLim;
contour(Z2,'-k')
ax.CLim = colorLim;
colorbar
axis equal