[vtkusers] QVTKWidget with interactorStyleImage does not work

[Karthik Krishnan]

you can Pick the imageactor and query the value at the cell. Take a
look at how vtkImagePlaneWidget does this

On 2/19/11, lindeval at dmat.ufrr.br <lindeval at dmat.ufrr.br> wrote:
> in body of constructor(in my code):
>
> fant->m_connections = vtkEventQtSlotConnect::New();
>
> fant->m_connections->Connect(ui->qvtkWidgetTrans->GetRenderWindow()->GetInteractor(),
>                                  vtkCommand::LeftButtonPressEvent, this,
>
> SLOT(slotEventMousePressed(vtkObject*,unsigned long, void*,
> void*,vtkCommand*)), 0, 1.0);
>
> ------------------------------------------------------------
>
> void FantWindow::slotEventMousePressed(vtkObject* caller, unsigned long,
> void* , void* data, vtkCommand* command)
> {
>
>     vtkRenderWindowInteractor  *iren =
> reinterpret_cast<vtkRenderWindowInteractor*>(caller);
>
>     iren->GetEventPosition(this->pos);
>
>
> //ui->labNfatTrPos->setText(tr("Pos=(%1,%2)").arg(this->pos[0]).arg(this->pos[1]));
>     //ui->labNfatTrPos->setAlignment(Qt::AlignVCenter | Qt::AlignRight);
>
>     cout << "Xpos = " << pos[0] << " " << "Ypos = " << pos[1] << endl;
>
> }
>
> This solves the question of the position. In this window I have a slice, but
> I can't get the color
> corresponding to the position where the mouse was clicked. Any suggestions?
>
>
>
> ----- Mensagem original -----
> De: "Jothy" <jothybasu at gmail.com>
> Para: lindeval at dmat.ufrr.br
> Cc: "VTK Mailing List" <vtkusers at vtk.org>
> Enviadas: Quinta-feira, 17 de Fevereiro de 2011 8:42:23 (GMT-0300)
> Auto-Detected
> Assunto: Re: [vtkusers] QVTKWidget with interactorStyleImage does not work
>
> Could oyu please send me this code
>
> fant->mcb
>
> Thank you
>
> Jothy
>
> On Wed, Feb 16, 2011 at 8:42 PM,  <lindeval at dmat.ufrr.br> wrote:
>> Hi!!
>>
>> See in my code below how to use vtkInteractorStyleImage with QVTKWidget.
>>
>>
>>    fant->sliceTransversalRen->AddActor(fant->sliceTransversalActor);
>>    fant->sliceTransversalRen->SetBackground(1.0,1.0,1.0);
>>
>>    vtkInteractorStyleImage *style = vtkInteractorStyleImage::New();
>>
>>  ui->qvtkWidgetTrans->GetRenderWindow()->AddRenderer(fant->sliceTransversalRen);
>>    ui->qvtkWidgetTrans->GetRenderWindow()->Render();
>>
>>  //ui->qvtkWidgetTrans->GetRenderWindow()->GetInteractor()->AddObserver(vtkCommand::LeftButtonPressEvent,fant->mcb,1.0);
>>
>>  ui->qvtkWidgetTrans->GetRenderWindow()->GetInteractor()->SetInteractorStyle(style);
>>
>>
>> ----- Mensagem original -----
>> De: "Jothy" <jothybasu at gmail.com>
>> Para: "VTK Mailing List" <vtkusers at vtk.org>
>> Enviadas: Quarta-feira, 16 de Fevereiro de 2011 8:19:04 (GMT-0300)
>> Auto-Detected
>> Assunto: [vtkusers] QVTKWidget with interactorStyleImage does not work
>>
>> Hi all,
>>
>> I am trying to set the interactor style to image ina QVTKWidget.I am
>> setting it by calling the interactor by
>> QVTKWidget->GetInteractor()->SetInteractorStyle().
>>
>> But it doesn't work. The image doesn't rotate as expected for a 2D
>> image interactor, but the W/L and W/W don't change on mouse move!
>>
>> Here is the bit of that code
>>
>> this->axialRenderer ->AddActor(slicer.axialSlice);
>>  this->ui->AxialWidget->GetInteractor()->SetInteractorStyle(this->imageInteractorStyle);
>>  this->ui->AxialWidget->GetRenderWindow()->AddRenderer(this->axialRenderer);
>>  this->ui->AxialWidget->GetRenderWindow()->Render();
>> //this->ui->AxialWidget->show();
>>
>>
>> Thanks
>>
>> Jothy
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>
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