[Paraview] Changing array names

[Aurélien Marsan]

Hi Ann,

You said you were importing a serie of CSV Files.
So the data type were a MultiBlockDataSet ?

Then you should iterate over all the blocks :


> id = self.GetInput()

 od = self.GetOutput()
> od.ShallowCopy(id)
>
> iter = od.NewIterator()
> iter.UnRegister(None)
> iter.InitTraversal()
> while not iter.IsDoneWithTraversal():
>    bloc = iter.GetCurrentDataObject()
>    bloc.GetPointData().RemoveArray('Name')
>    iter.GoToNextItem()
>

Regards,

A.Marsan

2012/2/28 Ann Moulding <geoflutist at gmail.com>

> Well, I tried to run the filter below (entering it into the "Programmable
> Filter") - but when I tried to run the calculator on the "filtered" dataset
> - it again choked on the text field. (I need to note however that when I
> look at the "filtered" dataset in spreadsheet view - the text field is
> still
> there).
> I will go ahead and submit a "Bug" report.
> Any other ideas about how to "filter" out a non-numeric array is
> appreciated.
> Ann
>
> -----Original Message-----
> From: David E DeMarle [mailto:dave.demarle at kitware.com]
> Sent: Monday, February 27, 2012 4:49 PM
> To: Ann Moulding
> Cc: paraview at paraview.org
> Subject: Re: [Paraview] Changing array names
>
> Sounds like a bug in the calculator filter. Please file a bug report to
> help
> us remember to fix it.
>
> Until someone does fix it, try this Script in a python programmable filter,
> placed somewhere before the calculator.
>
> id = self.GetInput()
> od = self.GetOutput()
> od.ShallowCopy(id)
> od.GetPointData().RemoveArray('Name')
>
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
>
>
> On Sat, Feb 25, 2012 at 1:10 AM, Ann Moulding <geoflutist at gmail.com>
> wrote:
> > I am a very new user of Paraview – and am just learning its
> > capabilities. I am importing a series of CSV  files – creating points
> > and Delaunay polygons – and then using the Calculator filter to create
> > vectors to plot with the Glyph tool.  But when I use the calculator –
> > one of the “Point Data” fields is not numeric – and when I write my
> > formula (which does not use the non-numeric field) and hit “Apply”  -
> > thje Output message says
> >
> > ERROR: In ..\..\..\..\source\VTK\Graphics\vtkArrayCalculator.cxx, line
> > 304
> >
> > vtkPVArrayCalculator (000000000B39EAE0): Invalid array name: 'Name'
> >
> > (the name of the non numeric field is “name”).
> >
> > I tried renaming this field in the input file – and this didn’t work.
> > So I removed the non-numeric field completely from the input file –
> > and the calculator did work.
> >
> > So, I have the option of editing all of my input files – so they don’t
> > have non-numeric fields – or there is some way of getting Paraview to
> > not choke on this field – or I’m missing something obvious right in front
> of my nose?
> > Any help is appreciated.
> >
> > Thanks.
> >
> > New2PV
> >
> >
> >
> >
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