[vtkusers] "3D Graphing calculator"

[Michail Vidiassov]

Dear All,

can you point me to a simple program/library that lives on top of VTK
and provides basic mathematical plotting, like making 3d graph of z(x,y)
with contour lines on it and XYZ coloring?
I.e. I am looking for something a level higher than the capabilities of 
vtk itself, a bit like plotting commands in Maple or Mathematica.

Octaviz (Octave+VTK) is something like that, but it needs Octave and
so is not really small.

  Sincerely, Michail