[vtkusers] 2DAxisActor

[Louis Desjardins]

Hi vtkusers
i just want to display an xy axis on my screen so i have an object of 
vtk2DAxisActor :

        XYAxisActor->SetPoint1(10, 100);
	XYAxisActor->SetPoint2(10, 100);
	XYAxisActor->SetRange(5, 40);
	XYAxisActor->AxisVisibilityOn();
	XYAxisActor->TickVisibilityOn();
	XYAxisActor->LabelVisibilityOn();
	XYAxisActor->RenderOverlay( Ren1 );

and then I add this actor to my Renderer but nothign appears?
Do you see anything wrong with the above code?
Thanks

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