how to code surf graph?

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)?

[KSSV]

You need to have a relation/ function for T/Z depeding on X,Y. What is that relation?

[bahareh bshrt]

There is no relation between x,y and z. I want plot that x,y axis is 0:0.01:0.2 and z axis is matrix with dimension 441*1 and first cell is 22 and last cell is 36 ... Is it possible to code a surfplot???

[KALYAN ACHARJYA]

@bahareh bshrt have you see the example surf plots in MATLAB Docs?

[KALYAN ACHARJYA]

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.

https://in.mathworks.com/help/matlab/ref/surf.html

Answer 1

[KSSV]

 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)

[bahareh bshrt]

Thank You so much