how to change the resolution of a nurb surface

the nurb surface seems to be distributed in three Objects.

  • the Object itself with global position etc…
  • the Curve Data with a list of
  • Nurbsurfaces with the Verts and little more.

Now i have a Curve with just one Nurbsurface, and i am trying to change the resolution.

for u-Res i can use

me.setResolu(…)

or

me.resolu = …

both codes work fine.
But

me.setResolv(…)

or

me.resolv = …

for the other dimension is bravely ignored.

I suppose, i somehow have to tell the Curve, it should change to the second dimension, while this happens for the first dimension on itself. But i do not know how.

Any suggestions are welcome.