[vtkusers] QVTKWidget, vtkResliceImageViewer question

[DL I]

Hi Imre,

it sounds like you want to set a specific pair of window/level values
instead of
interactively setting them by mouse movement.  vtkResliceImageViewer is
a subclass of vtkImageViewer2 which has methods to set window and level
values:
void SetColorWindow(double w)
void SetColorLevel(double l)

If you dont want the viewer's vtkInteractorStyleImage to do
window/levelling you
can handle those events and process them yourself by subclassing your own
interactor style from vtkInteractorStyleImage.

- Dean


On Tue, Mar 8, 2016 at 8:05 AM, Imre Goretzki <goretzki.imre at gmail.com>
wrote:

> Hey guys,
>
> I have a question about the attributes when holding down the left mouse
> button while moving the cursor up and down
> in the render window.
>
> Set up is a combination of QVTKWidget and vtkResliceImageViewer:
>
> view = vtkSmartPointer<vtkResliceImageViewer>
>
> ...
>
> view->SetInputData(vtkImageData);
> ui->display->SetRenderWindow(view->GetRenderWindow())
> view->SetupInteractor(ui->display->GetRenderWindow()->GetInteractor());
> view->Render();
> ui->display->update();
>
> ui->display: QVTKWidget
> view: vtkSmartPointer<vtkResliceImageViewer>
>
> Whenever I hold the left mouse button and move the cursor, the displayed
> image becomes darker (while moving up)
> and brighter (while moving down) respectively.
>
> I want to set the attribute to a certain level. I guess I have to override
> some events, but I need to know the attribute that will be set / changed
> during the described processes.
>
> Thanks in advance
>
> Imre
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