[vtkusers] Using vtkImagePlaneWidget::GetVector1 via tcl

[dean.inglis at on.aibn.com]

Martin,

from the tcl wrapping perspective, the methods 
GetVector1 and GetVector2 have to be added to
the VTK/Wrapping/hints file, then you could do
something like

set f_v1 [f_plane GetVector1]
set f_v1_x [lindex $f_v1 0]
set f_v1_y [lindex $f_v1 1]
set f_v1_z [lindex $f_v1 2]

I will add these to the hints file.  In the meantime
you could use 

set f_o [f_plane GetOrigin]
set f_p1 [f_plane GetPoint1]
set f_p2 [f_plane GetPoint2]

and calculate, fro example, f_v1 from the 
components of f_p1 and f_o 

Dean