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RE: SEAOC CAD STANDARDS[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaoc(--nospam--at)seaoc.org (SEAOC)
- Subject: RE: SEAOC CAD STANDARDS
- From: itsekson(--nospam--at)eichleayca.com (ITSEKSON SASHA)
- Date: 27 Oct 97 08:47:50 PST
- >message-id: <199710270949.10805(--nospam--at)eichleayca.com>
---------- From: Bill Allen[:ballense(--nospam--at)mail-gw2.pacbell.net] Sent: Saturday, October 25, 1997 11:54 PM To: seaoc Cc: ITSEKSON SASHA Subject: Re: SEAOC CAD STANDARDS I agree that developing SEAOC-wide CAD standards is a non-productive effort due to the variations in office setups, cad programs, etc. from office to office. However, there are many issues that can be shared here that can help each of us become more productive in preparing our drawings. In setting up framing and foundation plans, the system I use is productive for me but might not be for others. ..... Well, my point exactly. Everybody has their preferences, but there are certain things like layering system, pen width setup, type of section and detail marks that may be standardized. I too XREF (external reference) my client's drawings into mine and draw the structural items over them. I may be getting away from this because the drawings I get are usually not very well organized (at least for my setup) or not drawn very efficiently. I am pondering just tracing over my client's drawings and keeping all of the information I need "native" in my drawings. Guys, let's not open America's again. Nobody is against using x-refs. Anybody who is vaguely familiar with AutoCAD should be using them as opposed to inserting clients backgrounds. Regardless, I have my foundation and framing plans in one drawing (.dwg) file. I change views (foundation plan, 2nd floor framing plan, etc.) by turning on and off (freeze/thaw) layers. This is definitely worth a couple of bucks.:>) Wow, I guess I could not even think about it before when I had my 486 to play around with. Now I my seriously consider with having a nice Pentium with 64 Meg of RAM. With regards to layer names, I use a modified version of the AIA CAD layer standards, long version. A generic layer name that I use is: S-AAAA-BBBB-CCCC Where: S is the "Trade" modifier (S indicates structural, A for architectural, C, M, E, L etc.) AAAA is the item name like: COLS for columns NOTE, TEXT, TXTS (small text) DIML (dimensions) FOOT FRBM (framing beam) FRJO (framing joist) PATT (hatch patterns) SLAB TTLB (title block information) WABG (bearing wall) WANB (non-bearing wall) WASW (shear wall) REVS (revision clouds), can be REV1, REV2, etc. SLAB (slab edge) RBAL (longitudinal slab reinforcement) RBAT( trans. slab reinforcement) etc. Notice all of the layer names are four characters. BBBB is the level of the framing. FL00 is foundation FL02 is 2nd floor framing (FL01 is used for first floor walls) ROOF is roof framing MEZZ, PENT, BASE can also be used CCCC is optional and is intended for remodel work. EXIS is existing to remain PROP is new construction DEMO is work to be demolished To tell you the truth, it is a little bit too detailed for my taste. Why would you want for example to have a separate layer for longitudinal and transverse reinforcement? Unless you are using Softdesk or similar that changes layers for you automatically, it is such a pain to keep drawing layer consistent. Personally my preference would be something similar to Dennis Wish layering system. I guess I contradict here my own point about possibility of standardizing layers and such.:)) By using this system, it is easy to write script files (in AutoCAD) which will turn on and off these layers. The reason to limit the layer names to four characters is so that wild cards can be used when turning on and off layers. For example if one wanted to freeze all of the foundation layers and thaw all of the 2nd floor framing layers, this is what you would do either from the keyboard or in a script file: I wonder whether the script files were also available for AutoCAD 12 for DOS that I have been using until recently. I used to write routines like that in AutoLisp, which is definitely is not that straight forward. That's my two cents worth (O.K., maybe a buck fifty) :>) Regards, Bill Allen Bill and Dennis, thanks for some interesting ideas. Sasha Itsekson, P.E.
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