PDE Plot for contour lines, for a specific face

Hi guys! I am trying to plot a contour plot for my PDE result, like this one:

However, if I only wants contour plot for face 5, how can I do it? Also, is it possible to have the value label directly on the contour lines itself? Thank you so much!

Answer 1

[Zuber]

Hi,

I understand that you want a contour plot for ‘face 5’ and label the values on the contour lines. Assuming that the PDE result is stored in a matrix M, the coordinates for ‘face 5’ can be extracted as follows:-

fc_5 = M( :, :, 5);  

Then, the contour plot for ‘face 5’ can be obtained using ‘contour’ function:-

contour(fc_5);

Further, to label the values on contour lines, we can use the function ‘clabel’ as follows:-

[C,h] =  contour(fc_5);   
clabel[C,h];

For more information regarding ‘contour’ and ‘clabel’ functions, please refer to the documentation links below ,

1. Contour: https://www.mathworks.com/help/matlab/ref/contour.html
2. Clabel: https://www.mathworks.com/help/matlab/ref/clabel.html

I hope it answers your query.