[vtkusers] Tracking progress of filters...

[Molly Higginson]

I would like to see better progress feedback from vtkDataReader.
vtkDataReader only calls UpdateProgress after each major piece of
information (such as all of the points or all of the cells) is read. For a
large file, there can be quite a delay between one callback and the next.


If there were a callback after every few hundred values were read(e.g. after
every 500 in ReadASCIIData() and ReadCells()) it would be possible to
indicate progress to the user much more adequately.

I am using vtk 3.2.

Molly Higginson