vector drawing programs

[JParker coinstar com]

G'Day !

I am working on a vector drawing program.  One of the requirements is that it
may only depend on Gtk+ libraries (ie no GNOME)

I want to be able to use NURBS surfaces and other more "advanced" 3D graphics,
then the primitives available under Gdk.  Are there such objects available or do
I need to create (or extend) my own widget.

The tutorial mentions curves, but it is completely undocumented.  A quick glance
indicates that this may be a cubic spline (?) and 2D only.

cheers,
Jim Parker

Sailboat racing is not a matter of life and death ....  It is far more important
than that !!!