Contour plot on top of surface plot

70 views (last 30 days)
PPM
PPM on 21 Feb 2020
Commented: Geraldo Rebouças on 27 Nov 2023
Hi all,
I want to achieve something like the attached picture. I have tried with a mesh on top of a surf plot without success. I am not sure if this can be achieved with the surfc function. Any hints?
Thanks

Accepted Answer

PPM
PPM on 24 Feb 2020
Edited: PPM on 24 Feb 2020
Thank you for your answers.
As Walter said, Jacob's answer works but I have to work out the way to have a proper colorbar.
I ended up using the tips on this link Surface plot with multiple colormaps
Cheers
PPM

More Answers (2)

Jacob Wood
Jacob Wood on 21 Feb 2020
You can get similar results with surf() and contourf()
[X,Y,Z] = peaks(25);
surf(X,Y,Z-10)
hold on
contourf(X,Y,Z)

Walter Roberson
Walter Roberson on 21 Feb 2020
Edited: Walter Roberson on 21 Feb 2020
Although it is possible to hack the properties of contour to change where the z values appear, it is typically much easier to create a hgtransform() group, and when you contour() use that group's handle as the first parameter to contour() (the position you would specify the axes). Then set the transform matrix of the hgtransform group to translate Z upwards by however many units are appropriate. If you use datatips, then they will reflect the original data values, not the translated values.
The code suggested by Jacob Wood does work for its purpose, and can be used with contour() as well as contourf(), but it relies upon subtracting enough from the Z coordinates that all of the Z coordinates passed to surf() are negative. Then you either have to live with the z axes be offset by that subtracted amount, or else you have to set the Z tick labels to hide the fact that your data is offset. Your ability to use datatips is affected when you use this approach.
  4 Comments

Sign in to comment.

Categories

Find more on Contour Plots in Help Center and File Exchange

Products


Release

R2015a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!