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Not sure what engineer you've talked to, but your experience underscores
why hearsay isn't admissible in court. For the record, formulation of the CLG
was a direct result of knowledgeable and experienced CAD users, not uniformed
principals or the like. In addition to Taskforce members' experience, layering
ideas were also solicited in an open invitation to the architecture and
engineering professions. Literally hundreds of office layer standards were
submitted over the course of 6 months to a year. During a rather lengthy draft
review process (I seem to recall it being another 6 months) hundreds of
additional comments were reviewed. CLGr1 was result of very open and very
public discourse. CLGr2 revisions were based on several years' real world
CLGr1 use in the field. CLG may not suit your purposes, but they do represent
the practical experience of many seasoned users.
Nonetheless, I would agree they're not for everyone. If you never share CAD
files with outside consultants, owners or others, any system will do. I'll bet
half the world draws everything on layer 0. Some layer systems are designed
for speed of input or unique local needs. CLG was based, partially, on
communicating intent to a wide range of diverse practitioners. That may not be
part of your requirements.
Of course, government projects mandate CLG as do many private owners.
That's why most major CAD vendors have adopted CLG. If you studied but not
used CLG, you haven't given it a fair chance. They really do work, and work
well. If CLG were as unusable as you suggest, they likely would not have risen
to their current dominant position amoung CAD standards.
I'd be interested to know what layer system works best for you. Though the
taskforce is now inactive, CLG itself is a living document. New ideas are
Richard Buday, AIA
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