Merging three 3D plots into one

Dear community,

How can I merge three different 3D plots into one? My figures are saved in .fig (here I attach them), and I would like to plot them in the same graph to compare them. Is it possible to change the color of each of them and put a label to compare them properly? I have seen in the forum that I can apply the commands:

findobj 

and

copyobj

but I don't know how they properly work.

Thanks in advance!

Answer 1

[Dave B]

You can copy the surfaces from each of the axes, in each of the figures that you open like this:

a=open('BandL_my_replication_variance.fig');
b=open('BandL_my_replication_variance_c2.fig');
c=open('BandL_my_replication_variance_concave.fig');

s1=findobj(a,'type','Surface');
s2=findobj(b,'type','Surface');
s3=findobj(c,'type','Surface');

ax=axes(figure);
s1=copyobj(s1,ax);
s2=copyobj(s2,ax);
s3=copyobj(s3,ax);
close([a b c])

Then you can adjust the color on those surfaces like this:

s1.FaceColor='r';
s2.FaceColor='g';
s3.FaceColor='b';

And finally pick a view that you can see them like this:

view([32 23])

(I didn't copy over the x/y/z labels or add a legend but that part should be relatively simple)

[Angelavtc]

Thanks @Dave B this works great and how can I add an additional plane when z=0 to distinguish the graphs between positive and negative values of z?

[Dave B]

How about something like this? I used a black plane that spans the limits of the x and y axes, but a bit of transparency so we can see the stuff under 0. Not sure that will accomplish your goal of differentiating but maybe? (your example above seemed to have all positive z)

surf(xlim,ylim,zeros(2),'FaceColor','k','FaceAlpha',.2)

[Angelavtc]

This is perfect, thank you very much @Dave B. Yes, the graphs I attached are all positive, but I will apply the same code for others where this is not the case :)