[Paraview-developers] information_only property doesn't update, please help

[Cory Quammen]

Hi,

I think you forgot to attach your small example. Could you do so?

Thanks,
Cory

On Tue, Feb 27, 2018 at 12:43 PM, iusadhfoias sidufasipudf <
asduifhssauidf at gmail.com> wrote:

> Hello VTK developers,
> several questions about the correct usage of information_only properties
> have been asked over the years, but I didn't find a working solution.
>
> The attached example is a complete, tiny, source plugin ("MyInfoSource")
> for paraview 5.4.1. It generates an empty PolyData output. I am only
> interested in modifying and showing the source's properties.
>
> MyInfoSource has 3 properties (cf. InfoSource.xml):
> 1) InputPoint allows to input three coordinates.
> 2) CalculatedPoint has 'information_only="1"' and will be calculated
> whenever InputPoint is set.
> 3) ShowCalculatedPoint has 'information_property="CalculatedPoint"' and
> is meant to output that calculated value.
>
> I am using a modified vtkInfoSource::SetInputPoint, which sets the
> CalculatedPoint coordinates to twice the InputPoint coordinates whenever
> InputPoint changes (cf. vtkInfoSource.cxx).
>
> I was expecting the "ShowCalculatedPoint" property to update in the
> properties view, whenever I apply changes to InputPoint, but it doesn't
> change. Only when I click "Restore application default setting values" for
> MyInformationSource, then ShowCalculatedPoint shows twice the last value of
> InputPoint.
>
> Can you reproduce this behaviour?
> What needs to be changed, so that ShowCalculatedPoint always shows twice
> the InputPoint coordinates after changes are applied?
>
> Many thanks,
> Jussuf
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Search the list archives at: http://markmail.org/search/?q=
> Paraview-developers
>
> Follow this link to subscribe/unsubscribe:
> https://public.kitware.com/mailman/listinfo/paraview-developers
>
>


-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://public.kitware.com/pipermail/paraview-developers/attachments/20180228/3e0e8cbc/attachment-0001.html>