[vtkusers] Load update of datafile

[Prabhu Ramachandran]

hi,

>>>>> "BdC" == Benitio del Cruz <theqontinuum at hotmail.com> writes:

<snip>

    BdC> vtkDataSetReader, to which several filters are attached.  No
    BdC> matter how I try to tickle the reader, it won't reread the
    BdC> file. I've tried Update(), OpenVTKFile(), Modified(), etc. I
    BdC> worked around it for the moment by creating a second
    BdC> vtkDataSetReader, pointing to the same file, attaching it to
    BdC> the pipeline, and then deleting the old one. It is kind of
    BdC> working, but not exactly a nice solution.  Anybody got any
    BdC> ideas?

Maybe your version of vtk needs upgrading?  I have used this with
recent nightlies and it works pretty well.

$python

>>> from vtkpython import *
>>> d = vtkStructuredPointsReader()
>>> d.SetFileName ("heart.vtk")
>>> d.Update ()
>>> d.GetOutput ().GetPointData ().GetScalars ().GetRange ()
(0.0, 255.0)
# I changed the file meanwhile replacing one point with the value 555
>>> d.Modified ()
>>> d.Update ()
>>> d.GetOutput ().GetPointData ().GetScalars ().GetRange ()
(0.0, 555.0)

So, it definitely works.  Either you need to upgrade or the particular
reader that you are using is broken.

prabhu