[vtkusers] Quadratic Hexahedra

[Thompson, David C]

> I will be able to investigate it (line by line etc.) but I just
> wanted to confirm that the format detailed in my book is correct (with
> CELL_TYPES = 25 for the quadhexes).

Yup, 25 is what's in the code:
http://public.kitware.com/cgi-bin/cvsweb.cgi/VTK/Common/vtkCellType.h?rev=1.
21&content-type=text/x-cvsweb-markup&cvsroot=VTK&only_with_tag=release-4-2-6
where are things crashing?