[vtkusers] about splines

[Gwenaël Guillard]

Hi,

I have two questions about splines. One general and one more specific to
vtk.
1. It is possible to compute a spline given two points and two vectors
such that the curve has the two points for extremities end the two
vectors for tangent at these extremities. That is to say it is possible
to draw a spline with extremities and tangent line at the extremities
given. Is it possible to draw a spline with extremities, tangent lines
and  tangent PLANES given, ie with two points and four vectors?
2. How to do that with vtk?

Thank you for your help,

Gwenael