matlab set center of output figure to [0 0 0]

Question

I have a few set of data of three dimensional matrices, n x 3 with x, y and z coordinates. I viewed the matrices in the figure window.

% read function;
OBJ1=read_obj('subject1.obj');
FV.vertices=OBJ1.vertices;
FV.faces=OBJ1.objects(2).data.vertices;
figure, patch(FV,'facecolor',[0 0 1]); camlight
grid on
axis equal

I want to read other sets of data by using the same function, but sets the center of each figure (not the center of origin) at [x y z]=[0 0 0].

Note that when I use the function above, the center of outputs is not always at [0 0 0].

Is it can be done by using translation function?

Answer 1

If you want a perfectly square set of axes with the center at $(0,0,0)$, while keeping all of the data on screen, I'd do something like this:

axis auto;
a = axis;
amax = max(abs(a));
axis([-amax,amax,-amax,amax,-amax,amax]);

If you like your axes limits to be integral, change max(abs(a)) to ceil(max(abs(a))).