[vtkusers] mous interaction in vtk, problem with using vtkCallbackCommand

[한종철]

Hi,

I’ve got a problem with using vtkCallBackCommand to do custom mouse
interaction.

Something I want is drawing lines ,getting coordinate point which the mouse
was pointed by no means of using mouse control and texting the point in the
Window. 

I’ve tried a lot of things but I couldn’t solve it.

I’m quite hurry. Please answer me and Please give me some sample code so
that I can understand easily.

 

This is my Code.

 

           

           

static void handle_double_click(vtkObject* obj, unsigned long,

                                void*, void*)

{

  vtkRenderWindowInteractor* iren =
vtkRenderWindowInteractor::SafeDownCast(obj);

  vtkRenderer *pvtkRenderer  = vtkRenderer::New();

             vtkTextMapper *pvtkTextMapper = vtkTextMapper::New();

             vtkActor2D *pvtkActor2D = vtkActor2D::New();

             vtkMFCWindow *pvtkMFCWindow;

             

 

 

             vtkActor *pvtkActor = vtkActor::New();

 

  if(iren && iren->GetRepeatCount())

    {

             

 

 

             vtkActor *pvtkActor = vtkActor::New();

             pvtkTextMapper->SetInput("Hello World");

             pvtkTextMapper->GetTextProperty()->SetFontSize(24);

             pvtkTextMapper->GetTextProperty()->SetColor(255,1,1);

      pvtkActor2D->SetMapper(pvtkTextMapper);

             //pvtkMFCWindow -> GetRenderWindow()->AddActor(pvtkActor2D);

             //pvtkMFCWindow -> GetRenderWindow()->
AddRenderer(pvtkRenderer);

    

    }

}

 

 

 

void CVolCadView::OnInitialUpdate() 

{

           CView::OnInitialUpdate();

           

           // TODO: Add your specialized code here and/or call the base
class

           if (this -> pvtkMFCWindow) delete this ->pvtkMFCWindow;

           

           this -> pvtkMFCWindow = new vtkMFCWindow(this);

           this -> pvtkMFCWindow -> GetRenderWindow()-> AddRenderer(this-
>pvtkRenderer);

           

           

           // get double click events

           vtkCallbackCommand* callback = vtkCallbackCommand::New();

           callback->SetCallback(handle_double_click);

           this->pvtkMFCWindow->GetInteractor()-
>AddObserver(vtkCommand::LeftButtonPressEvent, callback, 1.0);

}

 

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