[Paraview] Reader has Filters Disabled`

[Yumin Yuan]

Try to add these to the end of MyReaderPanel::accept()

    this->proxy()->UpdateVTKObjects();
    this->proxy()->UpdatePropertyInformation();

    superclassOfMyReaderPanel::accept();


On Tue, May 10, 2011 at 9:11 AM, Brian C. Panneton (CONTR)
<brian.c.panneton.ctr at us.army.mil> wrote:
> Yes, by selecting a different source, the filter menu is enabled. When I go
> back to my reader the filters are again disabled. So I feel like something
> is not being set correctly when I press accept().  Or maybe it has something
> to do with the fact that the data hierarchy is Multi-block Dataset ->
> Unstructured Grid?
>
> My accept looks as such:
>
> [code]
> void
> MyReaderPanel::accept()
> {
>   vtkSMStringVectorProperty* lb = dynamic_cast<vtkSMStringVectorProperty*>(
>       this->proxy()->GetProperty("lbSelection"));
>
>   lb->SetNumberOfElements(this->widgets.lbSelection->count()*2);
>   for(int i = 1; i < this->widgets.lbSelection->count()+1; i++)
>   {
>       lb->SetElement(2*i-2,
> this->widgets.lbSelection->item(i-1)->text().toStdString().c_str());
>
>       if(this->widgets.lbSelection->item(i-1)->checkState() == Qt::Checked)
>       {
>           lb->SetElement(2*i-1, "1");
>       }
>       else
>       {
>           lb->SetElement(2*i-1, "0");
>       }
>   }
>
>   this->proxy()->UpdateProperty("lbSelection", 1);
>   vtkSMStringVectorProperty* lb2 = dynamic_cast<vtkSMStringVectorProperty*>(
>       this->proxy()->GetProperty("lbSelection"));
> }
> [/code]
>
> Utkarsh Ayachit wrote:
>>
>> Try selecting something else in the pipeline browser and then select
>> the filter again. Does that seem to update the menus correctly?
>>
>> Utkarsh
>>
>> On Mon, May 9, 2011 at 5:20 PM, Brian C. Panneton (CONTR)
>> <brian.c.panneton.ctr at us.army.mil> wrote:
>>
>>>
>>> Everything in the information tab does look correct. (Sorry I forgot to
>>> mention that I switched from PolyData to UnstructuredGrid earlier).
>>> Basically everything works as it should, but I don't have the option to
>>> use
>>> the filters on the data.
>>>
>>> With:
>>>
>>> Type: Unstructured Grid
>>> Num Cells: 159
>>> Num Points: 159
>>>
>>> I figured I would have at least a few filters. Or after I selected a few
>>> points some filters would show up.
>>>
>>> Utkarsh Ayachit wrote:
>>>
>>>>
>>>> But you're saying the information tab doesn't show the data
>>>> information correctly, right? That implies that some essential
>>>> "notification" is missing. Hard to say which one without looking at
>>>> the code, however.
>>>>
>>>> Utkarsh
>>>>
>>>> On Mon, May 9, 2011 at 3:38 PM, Brian C. Panneton (CONTR)
>>>> <brian.c.panneton.ctr at us.army.mil> wrote:
>>>>
>>>>
>>>>>
>>>>> The custom accept is on a custom panel. The custom accept just makes
>>>>> sure
>>>>> the GUI selections are sent to the vtkobjects. When apply is pressed on
>>>>> the
>>>>> panel, the data gets updated and plotted on the 3d graph (Vertices will
>>>>> be
>>>>> updated based on time). Thus I believe the GUI is being updated as it
>>>>> should. I can press the play button and watch everything move as it
>>>>> should.
>>>>> However, I am never able to filter any of the data even if I select
>>>>> points.
>>>>>
>>>>> Utkarsh Ayachit wrote:
>>>>>
>>>>>
>>>>>>
>>>>>> "Custom accept"? What's that? And yes, if you are doing some funky
>>>>>> stuff to update the reader, it could explain why the GUI never
>>>>>> realizes that the reader has been updated.
>>>>>>
>>>>>> On Mon, May 9, 2011 at 1:27 PM, Brian C. Panneton (CONTR)
>>>>>> <brian.c.panneton.ctr at us.army.mil> wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> Once I hit apply, I see Data Hierarchy: Multi-block Dataset -> 0:
>>>>>>> Unstructured Grid, 1: NA
>>>>>>> with Unstructed Grid selected Statistics shows:
>>>>>>> Type: Unstructured Grid
>>>>>>> Num Cells: 159
>>>>>>> Num Points: 159
>>>>>>> Memory: 0.011mb
>>>>>>>
>>>>>>> My reader does have a custom accept. Could that be the issue?
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Brian Panneton
>>>>>>>
>>>>>>> Utkarsh Ayachit wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>> Did you hit "Apply"? What does the Information tab say?
>>>>>>>>
>>>>>>>> Utkarsh
>>>>>>>>
>>>>>>>> On Mon, May 9, 2011 at 12:41 PM, Brian C. Panneton (CONTR)
>>>>>>>> <brian.c.panneton.ctr at us.army.mil> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>
>>>>>>>>> I have created a reader which makes a vtkMultiBlockDataSet
>>>>>>>>> containing
>>>>>>>>> a
>>>>>>>>> vtkPolyData. It reads in 100 some points and plots lines between
>>>>>>>>> them.
>>>>>>>>> After
>>>>>>>>> I read them in, I don't have the option to use any filters on the
>>>>>>>>> data.
>>>>>>>>> Any
>>>>>>>>> idea why this is disabled? Could it be related to the data having
>>>>>>>>> time
>>>>>>>>> steps?
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Brian Panneton
>>>>>>>>> _______________________________________________
>>>>>>>>> Powered by www.kitware.com
>>>>>>>>>
>>>>>>>>> Visit other Kitware open-source projects at
>>>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>>>
>>>>>>>>> Please keep messages on-topic and check the ParaView Wiki at:
>>>>>>>>> http://paraview.org/Wiki/ParaView
>>>>>>>>>
>>>>>>>>> Follow this link to subscribe/unsubscribe:
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>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>>>>>
>>>
>>>
>
> _______________________________________________
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>
> Visit other Kitware open-source projects at
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>
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-- 
~~~~~~~~~~~~~~~~
Yumin Yuan
R&D Engineer
Kitware Inc.
www.kitware.com
Phone : (518) 881-4936
email : yumin.yuan at kitware.com
~~~~~~~~~~~~~~~~