»I would like, on a plot, for the pattern to repeat itself.«
I am not sure I understand what you mean.
Is this an Art Brush? If so have you tried creating a Pattern Brush instead?
I'll try to explain it another way : I want to repeat the pattern along the length of a line. I enlarge the size of the line (in length), I would like the pattern to repeat itself, and not stretch...
Try creating a Pattern Brush.
Wouaah, thank you !! It's exactly the solution that I have been looking for several months....
If Corners require special elements you need to create those specifically to integrate in the Brush setting, but post again if you have further questions.