[vtkusers] Why the vtkTextProperty.SetFontSize() does not take effect?

[Liu_tj]

Hi,

I use vtkCaptionWidget to display text annotation on 3D model. My issue is the font size of the text. Below is my C# code:

vtkCaptionRepresentation rep = vtkCaptionRepresentation.New();
rep.GetCaptionActor2D().ThreeDimensionalLeaderOff();
rep.GetCaptionActor2D().GetTextActor().GetTextProperty().SetFontSize(100);
rep.GetCaptionActor2D().GetTextActor().GetTextProperty().SetFontFamily(4);
rep.GetCaptionActor2D().GetTextActor().GetTextProperty().SetFontFile("simsunb.ttf");
rep.GetCaptionActor2D().GetCaptionTextProperty().SetColor(0.0, 1.0, 0.0);

When the font size is from 100 to 50, the text is smaller; but if the size is from 50 to 25 to 10, the text size keeps the same. Why?

Thanks
Liu Peng
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