I found this addon to actually work quit well on imported line drawings from CAD software so far 
Just a hint for large surfaces, the initial edge length for the triangulation is set to 0.1 which is very detailed.
I would use it on a small plane first and set it higher. The addon will use the new value for future calculation.
Edit:
I also took some time to test Scatter on a large scale project
It’s great to see what it is capable of