[vtkusers] New plot3D reader

[Berk Geveci]

Hi all,

I am writing a new Plot3D reader which supports:

- multigrid (each block is one output)
- ascii
- fortran-style byte counts
- little/big endian
- i-blanking (partial)

I would appreciate some information on how people are
using the current reader:

- The current reader can compute a lot variables including
  vorticity, temperature etc. Is anybody using this 
  functionality ?
- There is an achaic interface which maps function numbers
  to variables: 100 -> density, 110 -> pressure etc. Anybody
  attached to those ?

Also, I would really appreciate it if someone donated a few 
(nice looking) example files.

-Berk