How to plot two different 3D graphics together?

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!!

Answer 1

[Fangjun Jiang]

The command "figure" creates a new figure.

Use just one of them, and run "hold on".

[Eduardo Hulse]

It worked, thank you very much!