how to code surf graph?

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bahareh bshrt el 17 de Feb. de 2021
Comentada: bahareh bshrt el 17 de Feb. de 2021
X=0:0.01:0.2;
Y=0:0.01:0.2;
T=a matrix with 441*1 dimension that start from 22 to 36
Z=zeros(441,1);
Z=T;
how can i code a surf graph (X , Y,Z)?
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KALYAN ACHARJYA el 17 de Feb. de 2021
@bahareh bshrt have you see the example surf plots in MATLAB Docs?
KALYAN ACHARJYA el 17 de Feb. de 2021
It's clearly stated in MATLAB Doc, the grid planes are form with the x and y dimentions. And the third z component represents the height of the particular grid.
X=0:0.01:0.2;
Y=0:0.01:0.2;
Next Form the grid plane
[x1,y1]=meshgrid(X,Y);
The result would be as following
Next task: Assign the Z value (Hence Z must be MATRIX, as you have to assign the value in the respective grids)
Here I have created any random matrix with size MxN (M=size of X,N=size of Y) and MATRIX values in the range of 22 and 36, as you have mentioned in the question.
Z=randi([22,36],[length(X),length(Y)]);
Surf plot
surf(x1,y1,Z);
Please refer the MATLAB Docs surf and see the dimensions of all x,y,z, it would be much easy to understand.

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KSSV el 17 de Feb. de 2021
x = 0:0.01:0.2 ; nx = length(x) ;
y = 0:0.01:0.2 ; ny = length(t) ;
[X,Y] = meshgrid(x,y) ;
Z = reshape(z,nx,ny) ;
surf(X,Y,Z)
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bahareh bshrt el 17 de Feb. de 2021
Thank You so much

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