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

[iusadhfoias sidufasipudf]

Hi Cory,
I feel really, really sorry to bother you again. You were so kind to remind
me of the attachment that was missing from my earlier question. Now It's
again two weeks without a reply, although I'm sure you can answer my
earlier question within a few minutes of your time. Please give me any
feedback so that I don't have to wait longer for no reason. If you don't
want to look into this issue, please say so. If my emails got lost in the
meantime, I can send them again.

Many thanks,
Jussuf


On Thu, Mar 1, 2018 at 10:28 PM, iusadhfoias sidufasipudf <
asduifhssauidf at gmail.com> wrote:

> 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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