PeachDrawing.Text
PeachDrawing.Text.Unicode.VerticalOrientation
VerticalOrientation.IsEffectivelyUpright(Rune) Method
Whether a character stays upright in vertical text set with CSS text-orientation: mixed.
public static bool IsEffectivelyUpright(System.Text.Rune rune);
Parameters
rune System.Text.Rune
The character.
Returns
Remarks
Tu counts as upright and Tr as rotated, which is what they fall back to when a font offers no dedicated vertical form.