MATLAB: How to select specific points from the meshgrid function

meshgridplotting

I have created a meshgrid and would like to select specific coordinates (rho, theta) on it in order to see their value relating to my Gauss-Laguerre beam I am inspecting.
 rseed=[0*max(w):max(w)/30:3*max(w)];  
      thetaseed=[0:360]*pi/180;
      [r,theta]=meshgrid(rseed,thetaseed)

Best Answer

The value at probe_r, probe_theta is approximately
interp2(r, theta,  GaussLaguerreValues, probe_r, probe_theta)
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