[Insight-users] LBFGSBOptimizer: bounds for BSplineDeformableTransform?

[Christoph Niedermayr]

Hi all!

I'm confused about how to use the LBFGSBOptimizer with a
BSplineDeformableTransform...

Facts:
 - LBFGSBOptimizer optimizes a set of variables within given bounds
 - A bound is a scalar of type double.
 - The parameters of the BSplineDeformableTransform are N-dim vectors.

Question:
  What is the meaning of a scalar bound in respect to a vector-type
  variable? The length of the vector?

tia,
Chris