Hidden line removal progress
From:
bemfarmer
30 Sep 2013 (31 of 296)
6201.31
There is a pretty good explanation for the use of different line widths at the beginning of this pdf:
www.conradiator.com/downloads/pdf/Linethicknesses.pdf
Edit: Added link to paper. Deleted pdf as it is copyrighted.
EDITED: 30 Sep 2013 by BEMFARMER