delete 3D cell in pde geometry

The matlab version that i am using in 2022a. I want to make a suspended shape by delete on cell from a stack cells. My code is like below.

clear model;

dl=[2 2 2 2 2 2 2 2 2 2 2 2;

0 2 0 3 1 2 2 2 1 2 3 2;

2 0 0 3 1 2 2 2 2 3 2 1;

3 0 0 2 1 3 2 1 2 2 1 1;

3 0 3 1 2 2 1 0 2 2 1 1;

0 0 0 0 1 0 2 0 1 0 0 1;

1 1 1 2 3 1 3 1 3 2 2 3;];

model = createpde;

gm=geometryFromEdges(model,dl);

g3=extrude(gm,[1 1 1]);

subplot(sr,sc,1);

pdegplot(g3,'CellLabels','on');

if I want to delete cell 5, what should i do?

Answer 1

[Nipun]

Hi Ari,

I understand that you want to delete a specific cell in a given stack of cells in MATLAB. Based on the given information and code snippet, I assume that you want to do this operation on variable "dl".

You can use paranthesis "()" with specified row and column range to access a particular sub-matrix. Then, assign the range to an empty list (or matrix) to delete the range.

For instance, to delete the fifth row in dl, we can do the follwoing:

% dl(i,:) returns the ith row in dl with all its columns
dl(5,:) = []; % assign to empty structure

For more information on indexing MATLAB arrays and matrices, refer to this document: https://in.mathworks.com/help/matlab/math/array-indexing.html

Hope this helps.

Regards,

Nipun