[vtkusers] vtkGridTransform: How to compute the inverse ?

[Jan Ehrhardt]

Hi to all,

but this message is mainly to D. Gobbi.

Can you explain me the method
vtkGridTransform::InverseTransformDerivative() ?
I see, you use some kind of newton-method but what criteria does you
minimizing.
Can you shortly explain the main steps of the algorithm ? 
Please, have pity with the stupid one ;-)

Regards,
	Jan