[vtkusers] vtkSliderRepresentation2D bug?

[Taron]

Hi everybody,

I found a strange behaviour of vtkSliderRepresentation2D.
I added it to a vtkSliderWidget and it worked so far. Then i did the
following: 

SliderRepresentation2D->GetPoint1Coordinate()->SetCoordinateSystemToDisplay();
SliderRepresentation2D->GetPoint2Coordinate()->SetCoordinateSystemToDisplay();
SliderRepresentation2D->GetPoint1Coordinate()->SetValue(50,50);
SliderRepresentation2D->GetPoint2Coordinate()->SetValue(100,50);

This represents a horizontal slider of length 50 pixel, starting at
coordinate (50,50);
If I resize the window, evreything works as expected, the slider does not
move and does not change size, but if i make a vertical slider like this,

SliderRepresentation2D->GetPoint1Coordinate()->SetCoordinateSystemToDisplay();
SliderRepresentation2D->GetPoint2Coordinate()->SetCoordinateSystemToDisplay();
SliderRepresentation2D->GetPoint1Coordinate()->SetValue(50,50);
SliderRepresentation2D->GetPoint2Coordinate()->SetValue(50,100);

the behaviour changes. Now if I resize the window the slider changes the
vertical position (y-coordinate) and the lenght. Its somehow related to the
display width/height ratio, because the coordinates are right if the ratio
is one.

I guess this is a bug, or is this behavior intended. Has anyone a fix for
this or a workaround?

Thanks

Klaus





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