[Paraview] Post processing vts data in paraview with python

[Utkarsh Ayachit]

You can use servermanager.Fetch() to fetch the raw data set to the client,
however it only works for unstructured datasets.

Utkarsh

On Wed, May 20, 2009 at 5:31 PM, David Doria <daviddoria at gmail.com> wrote:

>
> On Wed, May 20, 2009 at 5:10 PM, Mark Fleharty <mark.fleharty at gmail.com>wrote:
>
>> On Wed, May 20, 2009 at 4:44 AM, David Doria <daviddoria at gmail.com>
>> wrote:
>> > On Tue, May 19, 2009 at 10:52 PM, Mark Fleharty <
>> mark.fleharty at gmail.com>
>> > wrote:
>> >>
>> >> Hello,
>> >>
>> >> I'm new to using Python with Paraview.  I've been generating data in
>> >> the vts file format, and I would like to do some post processing on it
>> >> inside Paraview.
>> >>
>> >> I'm trying to read data from a structured grid and just get the
>> >> various values for different X, Y, and Z positions.
>> >>
>> >> I have a simple script that looks like:
>> >>
>> >> from paraview.servermanager import *
>> >> Connect()
>> >>
>> >> reader = sources.XMLStructuredGridReader(FileName="fields.vts")
>> >> extract=filters.ExtractGrid(Input=reader)
>> >>
>> >> So far this seems to work, I've been trying to figure out what methods
>> >> exist withing ExtractGrid and XMLStructuredGridReader that I can use
>> >> to find out what values I have at certain positions.
>> >>
>> >> Does anyone have a script that already does something similar?
>> >>
>> >> Thanks,
>> >>
>> >> Mark
>> >>
>> >
>> > In the python shell you can run dir(filters.ExtractGrid) and
>> > dir(sources.XMLStructuredGridReader) to see which methods are supported
>> in
>> > python.
>>
>> Thanks David.  I've done dir and help on sources, filters, and many of
>> the member functions/variables.
>>
>> I did find that sources.XMLStructuredGridReader has a
>> GetDataInformation() member, and inside of that a DataInformation
>> variable that has a number of members that indicate that it has loaded
>> my data, but I'm still unable to find any member functions that can
>> retrieve the values of my data at particular grid points.
>>
>> Any help would be appreciated.
>>
>> Thanks,
>>
>> Mark
>>
>
> Sorry Mark, I can't figure it out either (I tried with XMLPolydatareader
> too). There seems to be a PointData member, but as you say I don't know how
> to get at the actual data. I guess we'll wait for one of the experts to
> reply :)
>
> Thanks,
>
> David
>
>
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