画多个立方体组成的正方体

1. tick=linspace(-1,1,3);
2. [x,y,z]=meshgrid(tick);
3. h=slice(x,y,z,z,tick,tick,tick);
4. set(h,'FaceColor','none','Marker','o','MarkerFaceColor','y')
5. axis off
6. view(15,12)