How to find Faces related to a Cell in pde ?

Hi I am trying to see if there is FindFace command or something that allows me to see the Faces linked to a cell in the pde toolbox. I want to get away from having to assign the boundary conditions to the appropriate Faces everytime I change a parameter by plotting the geometry. Thanks, Best regards, Souvik

[Fernando Freire Ribeiro]

Hello Souvik,

Did you get the solution for your problem? I am facing the same. Thanks.

Fernando

Answer 1

[Siju Thomas]

Hi,

There is an undocumented function, findFaces within the PDE Toolbox that can list the IDs of the faces associated with a cell. Below is an example of its usage:

% create a PDEModel object
pdem = createpde();

% create geometry
pdem.Geometry = multicuboid(1,1,1);

% find faces associated with the Cell
pdem.Geometry.findFaces('region','Cell',1)

Please note that the findFaces function is only an internal function and does not have a fully developed API for it.

Siju

[Matias Bulacio]

Hello Siju. I am facing a similar problem for a 2D geometry. I need to map the Face label ID with the geometry position of the shape. Is there any undocumented function that could do that? Thanks in advanced.

[Siju Thomas]

Hi Matias,

Could you please provide more details on the problem that you are trying to solve?

Siju

[Matias Bulacio]

Hi Siju, you can find more details in this post I made https://la.mathworks.com/matlabcentral/answers/480160-for-the-pde-toolbox-how-to-get-the-edges-faces-ids-of-a-geometry-without-plotting-them?s_tid=prof_contriblnk.

Thanks!

[ADSW121365]

Is this a function which is likely to be removed in future releases given it is undocumented?