How to rotate multiple contour plots?

I am trying to make multiple contour plots on a same figure. I would like to rotate all of them by certain angle. I tried using the rotate command like,

[c,h] = contour(x,y,z)
rotate(get(h,'children'),[0 0 1],45)

and had no problems when making a single contour plot. But this doesn't work for multiple plots when I issue the command,

for i = 1:5
  [c,h] = contour(x{i},y{i},z{i})
  rotate(get(h,'children'),[0 0 1],45)
  if (i == 1)
    hold on
  end
end

Any suggestions on the approach? Thanks