[vtkusers] Placing scaled fonts -- am I missing something ?

[Oliver Kania]

I want to place scaled fonts in viewport coordinates
and also want to define the maximum pixel-height of the
font.
Shouldnt the following code work ?

----------------------------------------------------------------------------------------------
    vtkTextActor m_textActTop = vtkTextActor::New();
    ....
    m_textActTop->SetTextScaleModeToProp();
    m_textActTop->GetTextProperty()->SetFontFamilyToArial();
    m_textActTop->GetTextProperty()->SetColor(1.0,0.0,0.0);
    m_textActTop->GetPositionCoordinate()->SetCoordinateSystemToViewport();
    m_textActTop->GetPositionCoordinate()->SetValue(X1,Y1);
    m_textActTop->GetPosition2Coordinate()->SetCoordinateSystemToViewport();
    m_textActTop->GetPosition2Coordinate()->SetValue(X2,Y2);

----------------------------------------------------------------------------------------------

as I understand it, the position2 coordinates (X2,Y2) are relative to
(X1,Y1)
and therefore Y2 should determine the maximum height.
However, what happens is that position2 seems to control the actual
placement and position1 doesnt have any effect at all.

regards,
Oliver
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