[Paraview] XML plugin based on programmable filter with a slider

[Shuhao Wu]

I've implemented the ordering of the properties based on the order of 
definition within the class for all supported Python 3 versions. Let me 
know if it works for you.

Cheers,
Shuhao

On 2018-03-22 05:55 PM, Shuhao Wu wrote:
> Hello Alessandro:
> 
> It may be possible but it's not obvious to me. I suspect I can use the 
> ArrayListDomain xml element but I don't quite understand how it works. I 
> also don't have time right now to dive into the PV source code.
> 
> I do see from the Threshold filter:
> 
>        <DoubleVectorProperty command="ThresholdBetween"
>                              default_values="0 0"
>                              label="Threshold Range"
>                              name="ThresholdBetween"
>                              number_of_elements="2"
>                              panel_widget="double_range">
>          <ArrayRangeDomain name="range">
>            <RequiredProperties>
>              <Property function="Input"
>                        name="Input" />
>              <Property function="ArraySelection"
>                        name="SelectInputScalars" />
>            </RequiredProperties>
>          </ArrayRangeDomain>
>        </DoubleVectorProperty>
> 
> Perhaps someone from the Paraview development team can chime in on this 
> issue? I'll be happy to add it once I understand how it actually works.
> 
> Thanks,
> Shuhao
> 
> On 2018-03-22 09:59 AM, Alessandro De Maio wrote:
>> Hello  Shuhao,
>>     thank you for your reply and for your really great job on the
>> pvpyfilter. I had already tried it and it's very useful.
>> But I'm looking for the possibility to automatically assign the slider
>> range (in this case the upper value will be enough) depending on
>> information about the input of the programmable filter (in this case the
>> number of blocks of a multiblock dataset) and not to set it hardcoded in
>> the xml as from your approach. I would like that, if I apply this 
>> filter to
>> a mbdataset with 5 blocks, the slider can choose an int value from 0 
>> to 4,
>> and if I apply the same filter (without modifying xml) to another 
>> mbdataset
>> with 8 blocks the slider provides an int from 0 to 7.
>>
>> Cheers
>>
>> Alessandro
>>
>> PS With pvpyfilter is there the possibility of decide in the .py file the
>> order of the widgets in the property panel? It seems to me that the order
>> is random
>>
>> On Thu, Mar 22, 2018 at 12:39 AM, Shuhao Wu <shuhao at shuhaowu.com> wrote:
>>
>>> Accidentally hit Reply instead of hit Reply list. The record is below:
>>>
>>> -------- Forwarded Message --------
>>> Subject: Re: [Paraview] XML plugin based on programmable filter with a
>>> slider
>>> Date: Wed, 21 Mar 2018 19:38:40 -0400
>>> From: Shuhao Wu <shuhao at shuhaowu.com>
>>> To: Alessandro De Maio <demaio.a at gmail.com>
>>>
>>> Hello Alessandro,
>>>
>>> I just published a library that allows you to do _just this_. See:
>>> https://github.com/shuhaowu/pvpyfilter
>>>
>>> The example covers exactly this and specifically you can use the 
>>> property:
>>>
>>> double_slider = Double("double with slider", default=0.5, slider=[0.0,
>>> 1.0], help="double with slider between 0.0 and 1.0 and a default of 
>>> 0.5")
>>>
>>> Let me know if the library works for you or if you encounter any bug 
>>> as it
>>> is still early days for this library.
>>>
>>> Cheers,
>>> Shuhao
>>>
>>> On 2018-03-21 01:37 PM, Alessandro De Maio wrote:
>>>> Hello,
>>>> I'm trying to write a plugin based on a programmable filter in order to
>>>> extract a single block from a multiblockdataset (with a single level
>>> tree)
>>>> in input chosing it through a slider in the property panel.
>>>> I need help to automatically set the range of the slider (the higher
>>> limit
>>>> as the lower is always 0) as the number of blocks of the
>>> multiblockdataset
>>>> in input, but the XML ServerManager definition of the slider is not 
>>>> clear
>>>> enough for me.
>>>>
>>>> I'm trying to follow Utkarsh suggestion in
>>>>
>>>> https://public.kitware.com/pipermail/paraview/2009-March/011599.html
>>>>
>>>> but I'm missing how to recovery the number of blocks of the input of 
>>>> the
>>>> programmable filter and how to set it as the upper value of the slider
>>>> range.
>>>>
>>>> Thank you in advance for your kind help
>>>>
>>>> Alessandro
>>>>
>>>>
>>>>
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>>