Yes, there is a solution, as stated
How are you?
Yes, your idea is ok.
I did so and it was good. I like to have a single expression for all.
When I wrote the words already knew he could not contain text, but I decided to take the opnion of all to see if anyone did.
I don't think so, because we have to use the condition for text heigh assignment you'll need an expression for both
Exactly, that's what made an expression for each label, so the control was dynamic.
Could post a drawing for us to look at? That might help us bridge our language difference.
I think you just need one expression.
It needs to be desgined to return a zero for the case where you don't want the text to display.
It needs to be desgined to return your text height for the case where you do want the text to display.
(NB text height in drawing units. I found this out: if I want 1.5mm text, I would type 1.5 in the text height box. But if you're using an expression to set the text height it's 0.0015, because it reads it as metres.)
As others have said, use this expression as the text height for the componant " K1=<xxx> "
The entire componant will disapear in the case when the text height is zero.
I don't know if you will need other expression to change the size of the border around the text.
Credit where credit is due! Give kudos or accept as solution whenever you can.
The equation works, but when the component is not located on the curve is the value? '. Do you have any idea how to hide?