3D surface plot (mode shape)

Hi,

Im looking to make a 3d surface plot. x and y in my code represnt grid points. R16 and R109 is the data I want to be in the Z direction. Im horrible at coding so any help I can get is appreciated.

x=[0, 12.5, 25.5, 38, 50.5;
    0, 12.5, 25.5 , 38, 50.5;
    0, 12.5, 25.5, 38, 50.5];
y=[0, 0, 0, 0, 0;
    6, 6, 6, 5, 4.75; 
    18, 17, 15.75, 14, 13];

R16=[1, 1.571429, 2.285714, 2.714286, 3.428571;
    .857143, 1.428571, 2.142857, 2.857143, 3.571429;
    1.142857, 1.571429, 2.285714, 3, 5];
R109=[4, 4.315789, 3.55556, 2.857143, 2.1;
    3.7777778, 12.42857, 3, .75, 4.444444;
    1.684211, 1.947368, 7, 3.888889, 12.5];

[X,Y,Z] = meshgrid(x,y,R16);
surf(X,Y,Z)

Answer 1

[Bruno Luong]

No MESHGRID calls are needed since your data are already gridded

surf(x,y,R16)

and

surf(x,y,R109)