A=[11.9692  0.629961 4.58378
11.7692  0.629961 4.61787
11.5692  0.629961 4.77567
11.3692  0.629961 4.83577
11.1692  0.629961 4.80426
10.9692  0.629961 4.66511
10.7692  0.629961 4.58553
10.5692  0.629961 4.5942
10.3692 0.629961 4.73751
10.1692 0.629961 4.82803
9.96925 0.629961 4.82393
9.76925 0.629961 4.71946
9.56925 0.629961 4.58987
9.36925 0.629961 4.58726
9.16925 0.629961 4.68441
8.96925 0.629961 4.81201
8.76925 0.629961 4.83412
8.56925 0.629961 4.76419
8.36925 0.629961 4.60731
8.16925 0.629961 4.58479
7.96925 0.629961 4.63111
7.76925 0.629961 4.78704];
x=A(:,1);y=A(:,2);z=A(:,3);
[x1,y1]=meshgrid(7:0.1:12,0.6:0.01:0.65);
z1=griddata(x,y,z,x1,y1,'v4');
surf(x1,y1,z1)