In QGIS there is the option to not label features shorter than a certain value:
("Suppress labeling of features smaller than")
The max. value I can set for the length is 99,99mm. So if I want to supress labeling of features smaller than 0.5m I cannot choose 0,5m as value.
As a workaround I use this expression which works fine:
case when $length>0.49 then MyTextColumn END
Is it possible that the value I can set for this option means length(on my screen or on my sheet of paper) at a certain scale? This would be very misleading as I think for a scale on a screen I would expect to set a value in Pixel.