"This is necessary for the calculation of internal power in the construction of the roof of the building. (Maxwell-Cremona diagram)"
I have several primitives - these are lines.
Each next primitive must be placed at the point # 1 of the previous primitive, and so on.
I need to automate the process in a loop (and not as I did here - manually ).
(The problem is solved correctly if everything closes)
desk_21.hip