How to get the vertex points of all grid points within a cube?

If I have a NxN cube, and wanted to plot a point at each integer x,y,z position included in the cube, how could I iterate through and store all the points to x,y,z point arrays?

[Adam]

What do you mean by 'I have a NxN cube'? In what format do you have it at the moment?

[Michael Ferguson]

Sorry, obviously for 3D it would be NxNxN cube.

Answer 1

[Michael Ferguson]

It was a lot easier than I first realized, here was my solution to the problem after simply writing it out on paper and seeing a pattern. N=5

d1 = 0;
d2 = 0;
d3 = 0;
for k = 0:5
    d1 = k;
    for j = 0:5
        d2 = j;
        for i = 0:5
            d3 = i;
            scatter3(d1,d2,d3,0.5,'r'); hold on;
        end
    end
end

[Adam]

doc ndgrid

should be able to give you the points. It's advisable to plot them all as a single scatter plot, otherwise performance can suffer the more graphics objects you have and N^3 gets big pretty fast!

Answer 2

[Bruno Luong]

[x,y,z]=ndgrid(0:5);
scatter3(x(:),y(:),z(:),'r')