MATLAB: How to plot two different 3D graphics together

3d plots

Hello , I have these two graphics, representung results of a simulation and want to plot those results together, however I'm only getting two separate graphics with the function I'm working on. Any thoughts?
This is my current work and results 
hold on 
N = 1000;                                           
xv = linspace(min(x), max(x), N);                   
yv = linspace(min(y), max(y), N);                  
[Xm,Ym] = ndgrid(xv, yv);                           
Zm = griddata(x, y, F1, Xm, Ym);                     
figure
surf(Xm, Ym, Zm)
shading interp
grid on 
N = 7.5;                                           
xv = linspace(min(xr), max(xr), N);                   
yv = linspace(min(yr), max(yr), N);                  
[Xr,Yr] = ndgrid(xv, yv);                           
Zr = griddata(xr, yr, F1r, Xr, Yr);                     
figure
plot3(Xr, Yr, Zr,'o','Color','g')
grid on
hold off
Thank in Advance!!

Best Answer

The command "figure" creates a new figure.
Use just one of them, and run "hold on".
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