[ITK-users] [ITK] Interaction of keyboard

[Jon Haitz Legarreta]

Hi Abdelkhalek,
ITK does not involve any Graphical User Interface, and thus, user
interaction does not fit in ITK's framework.

The issue (and the code) you describe are related to VTK.

I am sure that you will be able to find useful examples concerning this on
VTK's wiki [1].

HTH,
JON HAITZ


[1] http://www.vtk.org/Wiki/VTK/Examples



On 7 April 2016 at 22:34, Abdelkhalek Bakkari <
bakkari.abdelkhalek at hotmail.fr> wrote:

> Hi !
>
> I would like to interact the button of my keyboard in order to modify the
> position of a 3D object (translation) using up or down or left or right
> buttons.
>
> I created the following piece of code but it does not give results :
>
> ------------------------------------------------------------------------------------------------------------
> class KeyPressInteractorStyle : public vtkInteractorStyleTrackballCamera {
> public: static KeyPressInteractorStyle* New();
> vtkTypeMacro(KeyPressInteractorStyle, vtkInteractorStyleTrackballCamera);
> virtual void OnKeyPress() { double handpos[3]={8.0,2.0, 0.0}; // Get the
> keypress vtkRenderWindowInteractor *rwi = this->Interactor; // vtkRenderer
> *rend=new(vtkRenderer); std::string key = rwi->GetKeySym(); // Output the
> key that was pressed std::cout << "Pressed " << key << std::endl; // Handle
> an arrow key if(key == "Up") { std::cout << "The up arrow was pressed." <<
> std::endl; // act->SetPosition(handpos[0]+1, handpos[1], handpos[2]);
> myTrans->Translate(handpos[0]+1, handpos[1], handpos[2]); handpos[0]++;
> act->SetPosition(handpos[0], handpos[1], handpos[2]); renderer->Render();
> renderWindow->Render(); } // Handle a "normal" key if(key == "Down") {
> std::cout << "The a key was pressed." << std::endl; handpos[0]++;
> act->SetPosition(handpos[0], handpos[1], handpos[2]); renderer->Render();
> renderWindow->Render(); } // Handle a "normal" key if(key == "Right") {
> std::cout << "The Right key was pressed." << std::endl; handpos[2]++;
> act->SetPosition(handpos[0], handpos[1], handpos[2]); renderer->Render();
> renderWindow->Render(); } if(key== "Left") { std::cout << "The left key was
> pressed." << std::endl; handpos[2]++; act->SetPosition(handpos[0],
> handpos[1], handpos[2]); renderer->Render(); renderWindow->Render(); } //
> Forward events vtkInteractorStyleTrackballCamera::OnKeyPress(); } };
>
>
> ------------------------------------------------------------------------------------------------------------------
>
> Best regards,
>
>
> Abdelkhalek Bakkari
> Ph.D candidate in Computer Science
> Institute of Applied Computer Science
> Lodz University of Technology, Poland
>
>
>
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