3/4 threaded circle representation in drw

[Stinox]

I can't see in drawing the three-quarter circle of a metric thread, instead of the three-quarter circle I see a whole circumference, someone of good heart can tell me what I can do?
ps the thread is I have already popped inclus of thread
post ps if a discussion has already been made about it I apologize but I cannot find anything

 

[Stinox]

I answer well from me, then I did not display the three-quarter circle of the thread because I had set for the threads the hanging representation, to bring it to iso you go in preparation/propieta' design/options of detail/thread_standard and then set on std iso