ans=[4145306.61 512963.80 18.96 ;
4145365.17 511893.37 19.28 ;
4145272.03 512127.81 22.11 ;
4145362.48 512051.28 20.83 ;
4145420.53 511982.28 19.30 ;
4145258.77 512237.06 23.42 ;
4145299.82 512187.76 22.63 ;
4145341.06 512138.86 21.78 ;
4145138.16 512474.12 25.10 ;
4145200.09 512399.98 23.99 ;
4145224.39 512371.23 23.83 ;
4145269.97 512316.88 23.59 ;
4145340.64 512232.51 22.85 ;
4145386.51 512178.34 21.97 ;
4145443.66 512109.8 21.05 ;
4145275.35 512388.29 23.52 ;
4145300.38 512350.25 23.22 ;
4145335.95 512315.68 22.89;
4145309.43 512457.3 23.44;
4145313.50 512419.28 23.31 ;
4145346.68 512382.49 22.92 ;
4145367.85 512387.46 23.00 ;
4145400.56 512316.84 22.55 ;
4145452.73 512254.4 21.78 ;
4145510.78 512185.52 20.91 ;
4145567.15 512118.33 20.16 ;
4145337.82 512607.48 23.63 ;
4145401.81 512533.76 23.32 ;
4145392.04 512481.98 20.67 ;
4145444.98 512419.39 22.50 ;
4145493.02 512361.46 21.69 ;
4145556.40 512443.45 21.78 ;]
X=ans(:,1)
Y=ans(:,2)
Z=ans(:,3)
X1=min(X)
X2=max(X)
X3=X1:10:X2;
Y1=min(Y);
Y2=max(Y);
Y3=Y1:10:Y2;
[X4,Y4]=meshgrid(X3,Y3)
Z4=griddata(X, Y, Z, X4, Y4)
mesh(X4, Y4 , Z4)
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