to_rotation

Converts a `PangoGravity` value to its natural rotation in radians.

Note that [method@Pango.Matrix.rotate] takes angle in degrees, not radians. So, to call [method@Pango.Matrix,rotate] with the output of this function you should multiply it by (180. / G_PI).

Parameters:

gravity

gravity to query, should not be pango_gravity_auto

Returns:

the rotation value corresponding to gravity.