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How to reshape 'Z' matrix for surf(X,Y,Z)

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Ashish Srivastava
Ashish Srivastava 2023-7-11
评论： Stephen23 2023-7-11
Hi. I am fairly new to MATLAB and I am trying to use surf to plot 3D surface plot for my modal curvature. i have meshed the grid and my X and Y matrices are of size 2000X2000. I want to reshape my 'Z' Matrix so that it becomes of size 2000X2000 from 2000X4.
Where 2000 is the number of elements in my beam and 4 is the vertices of those elements
Edit-Thank you guys for response but i have tried reshape(Z,2000,2000) before asking here. It is not working. Also I am using AEM based modelling so there are no nodes but the springs used for elements connections.
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Stephen23
Stephen23 2023-7-11
"Where 2000 is the number of elements in my beam and 4 is the vertices of those elements"
That sounds like you should use PATCH, rather than MESH:
https://www.mathworks.com/help/matlab/ref/patch.html

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回答（1 个）

Divyam
Divyam 2023-7-11
Hi @Ashish Srivastava,
You can use the reshape function.
updatedZ = reshape(Z', 2000, 2000);
More information about the reshape function: Reshape array - MATLAB reshape - MathWorks India
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Stephen23
Stephen23 2023-7-11
"You can use the reshape function."
No, you cannot use RESHAPE to change an array with 8000 elements into an array with 4000000 elements.

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