Plan views with line filters seem to be almost useless:
-a plan view set to any of the line filters only outlines the very perimeter of something, while in a perspective view, it outlines all edges (i.e.: it will outline every leaf in a tree)
-a plan view set to “hidden lines” crashes the program if pathtracer is not turned on when you export, while a perspective view renders a great quality image in less than 5 minutes
-if you turn pathracer on, a simple “black & white” and “hidden lines” export takes 5 hours to render. Toggle the “hidden lines” filter off and the same image is rendered in under 15 minutes. When the “hidden lines” image is finally rendered, it looks blurry, pixilated and has geomteric lines all over the “white” background (looks nothing like the fast, high-quality, unpathraced perspective view that took 5 minutes).
Not sure what is going on under the hood, but it seems to be overly complicated for a simple line drawing plan view that an architect might want.