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

[iusadhfoias sidufasipudf]

I'm sorry, here is the attachment.

Many thanks,
Jussuf

On Thu, Mar 1, 2018 at 4:26 AM, Cory Quammen <cory.quammen at kitware.com>
wrote:

> 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
>>
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>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.
>
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