[Paraview] Reader has Filters Disabled`

[Brian C. Panneton (CONTR)]

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
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>>>>>>>>
>>>>>>>>                 
>>>>>>             
>>>>         
>>