MATLAB: How to change grid option(size of grid & granularity)

gridmeshcmeshgridsurface and mesh plots

i have this mask.and display that by meshc function?
z=[  0.0000  0.0000  0.0000  0.0000  0.0000 0.0000;
  -0.0005 -0.0001  0.0000  0.0000  0.0000 0.0000;
   0.0038  0.0001 -0.0005 -0.0000  0.0000 0.0000;
   0.0074  0.0066  0.0027 -0.0003  0.0000 0.0000;
   0.0054  0.0067  0.0078  0.0011 -0.0001 0.0000;
   0.0000  0.0000  0.0000  0.0000  0.0000 0.0000];
meshc(z)
how to change grid option like this image :

Best Answer

Since you have gridded data, the interp2 function is perfect for what you want to do.
EDIT — To illustrate (literally):
og = [1:6];                                                     % Original Grid (Vector)
[X,Y] = meshgrid(og);                                           % Original Grid (Matrices)
qg = linspace(min(og), max(og), 25);                            % Query Grid (Vector)
[Xq,Yq] = meshgrid(qg);                                         % Query Grid (Matrices)
zq = interp2(X,Y,z,Xq,Yq, 'spline');                            % Interpolated ‘z’
figure(1)
meshc(Xq, Yq, zq)
grid on
Explore the options (grid size, interpolation method, etc.) presented in the interp2 documentation.
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