[Paraview] Saving data plotted using PlotOverLine

[pat marion]

Hi Steve,

Is it possible you are using an older paraview?  The python code for
xycharts is relatively new.  Instead of CreateRenderView() you should have
CreateXYPlotView().  You shouldn't be calling

   DataRepresentation3.add_attribute('XArrayName','arc_length')

but just:

  DataRepresentation3.XArrayName = 'arc_length'

With the script you posted, DataRepresentation3 won't have the 'XArrayName'
attribute because you called Show when the active view was a render view,
not an XYPlotView.

Pat

On Tue, Mar 9, 2010 at 11:09 AM, Utkarsh Ayachit <
utkarsh.ayachit at kitware.com> wrote:

> Steve,
>
> When you were saving your trace out, what version of ParaView were you
> using? I just tried today's CVS and I do indeed get a correct trace
> for the PlotOverLine as under:
>
> ....
> PlotOverLine1 = PlotOverLine( Source="High Resolution Line Source" )
> PlotOverLine1.Source.Point1 = [-10.0, -10.0, -10.0]
> PlotOverLine1.Source.Point2 = [10.0, 10.0, 10.0]
> ....
>
> Utkarsh
>
> On Tue, Mar 9, 2010 at 8:33 AM, Stephen Molloy
> <stephen.molloy at rhul.ac.uk> wrote:
> > Right.  As I mentioned in my email from last night, I suspected the
> problem
> > was with the PlotOverLine object, and I was right.  I wasn't defining
> that
> > properly, so the CSV file was empty.
> >
> > Attached is the working file.
> >
> > Thanks again,
> >
> > Steve
> >
> >
> > Stephen Wornom wrote:
> >>
> >> Utkarsh Ayachit wrote:
> >>>
> >>> You can use the following:
> >>>
> >>> w = DataSetCSVWriter(FileName="foo.csv")
> >>> w.UpdatePipeline()
> >>>
> >>>
> >>>
> >>
> >> When all is working well, would you share your python script?
> >> Thanks in advance,
> >> Stephen
> >>>
> >>> On Mon, Mar 8, 2010 at 5:50 AM, Stephen Molloy
> >>> <stephen.molloy at rhul.ac.uk> wrote:
> >>>
> >>>>
> >>>> Hi all,
> >>>> I am using Paraview 3.7.0 to view a large number of data files, each
> >>>> with
> >>>> the same geometry.  I need to load the geometry and volume data, use
> >>>> PlotOverLine to extract the magnitude of a variable along a particular
> >>>> line,
> >>>> and then save this data to a CSV file.
> >>>>
> >>>> Due to the large number of data sets I am dealing with, I have been
> >>>> trying
> >>>> to use the Python Trace functionality to automate this, and I am able
> to
> >>>> do
> >>>> everything except for saving the CSV file at the end.  I have browsed
> >>>> around
> >>>> quite a bit over the past few days, and I understand that the trace
> >>>> functionality does not work for save data commands, but I was
> wondering
> >>>> if
> >>>> someone could help me find the Python object that contains the
> relevant
> >>>> data
> >>>> so that I can write my own little routine to dump it to a CSV file.
> >>>>
> >>>> Many thanks for any help you can offer.
> >>>>
> >>>> Steve
> >>>>
> >>>>
> >>>> _______________________________________________
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> >>
> >
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