IRC log for #brlcad on 20080123

01:40.50 *** join/#brlcad Twingy (n=justin@74.92.144.217)
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03:39.32 CIA-31 BRL-CAD: 03brlcad * r30053 10/brlcad/trunk/src/other/ (tcl/unix/ tk/unix/): ignore the stub libs
03:40.43 CIA-31 BRL-CAD: 03brlcad * r30054 10/brlcad/trunk/src/proc-db/: ignore breplicator
03:42.38 brlcad cause afaik, vas4 is dead .. as soon as it requires maintenance, it'll probably be time to remove it
03:45.59 ``Erik I think it was a compiler issue
03:46.20 ``Erik I wante dto talk to you about retiring it on my way out, but you were on the phone
03:47.57 *** join/#brlcad starseeker (n=CY@c-68-33-217-173.hsd1.md.comcast.net)
03:48.04 yukonbob hello, starseeker
03:48.09 starseeker Howdy
03:48.24 starseeker how goes it?
03:48.30 yukonbob not bad -- yourself?
03:48.42 starseeker Tired :-). I'm about done with moving...
03:48.46 yukonbob :)
03:48.47 starseeker or it's about done with me...
03:48.58 yukonbob What are you going to be working on when you start?
03:49.01 ``Erik lewis black is pretty funny in his new special
03:49.13 ``Erik yukon: fetching coffee and such
03:49.17 ``Erik :D
03:49.18 starseeker lol
03:49.19 yukonbob hehehe
03:49.45 ``Erik it'll take at least a week to get a computer account all lined up and permitted
03:50.04 starseeker Yeah, basic stuff to start. Right at the moment I'm just doing alot of paperwork
03:50.23 ``Erik lots of paperwork
03:50.47 ``Erik uh, sf86, interims, aup, etc
03:50.49 yukonbob ~karma starseeker
03:50.49 ibot starseeker has karma of 2
03:50.56 yukonbob ~karma yukonbob
03:50.56 ibot yukonbob has karma of 2
03:51.06 ``Erik no, the only reason I have an arl purchased coffee cup is cuz I stole it
03:51.16 starseeker Ah :-).
03:51.16 ``Erik from the director O.o
03:51.48 ``Erik slad director, I stole one of pauls "slad" cups
03:51.49 ``Erik :)
03:51.50 yukonbob I _was_ going to say maybe when I reach starseeker's level of karma, I'll get a job @ arl too -- and we can get paid to build Saturn models in BRL-CAD
03:52.37 starseeker yukonbob: That's a tad useless even for worst-case pork spending, unless perhaps the Smithsonian commissions a Saturn V model...
03:52.52 ``Erik sorry, bob, you're a canuck, so us gov't doesn't consider you to be a sentient being :(
03:52.53 yukonbob heh
03:52.59 yukonbob feh
03:53.05 yukonbob that's OK -- England took me
03:53.07 louipc wgha?
03:53.30 ``Erik sweet
03:53.41 yukonbob will be...
03:54.08 starseeker yukonbob: I still think the unrestricted Saturn V blueprints (if any) would be a great demo for the BRL-CAD software
03:54.26 starseeker yukonbob: That's likely something I'll be doing in my retirement...
03:54.40 yukonbob starseeker: indeed it would -- it'd be cool in many ways
03:55.03 ``Erik buddy of mine, colin, did his doctorate at oxford, damn smart boy
03:55.38 starseeker I'm getting the impression the publicly available screenshots of BRL-CAD don't even begin to hint at what it can do, but of course engineering drawings of sufficient complexity to really show it off are a tad hard to come by in the public domain...
03:55.39 ``Erik he claims to have the shortest thesis out of the cs dept there
03:55.46 ``Erik ohhhhhh, heh
03:55.57 ``Erik ummm
03:56.26 ``Erik the birdcage stryker was a BRL-CAD model converted to adt for rise, and the grass added using blender
03:56.44 ``Erik thought I think it was a pro-e model that was converted and cleaned up
03:56.49 starseeker :-)
03:56.50 yukonbob starseeker: I bet the public digs pretty pix like that 6-wheel vehicle (which _is_ an awesome render), and other visibly 'kewl' things
03:56.58 ``Erik the birdcage may've been done in brlcad
03:57.24 starseeker yukonbob: Yeah, visually complex is good.
03:57.28 yukonbob ah -- that's the one I was thinking of -- the stryker...
03:57.33 ``Erik we have ummm, a hubble model, a hilux truck, and an mi28
03:57.36 ``Erik 8 wheel, not 6
03:57.45 starseeker Is the hubble model in the public tree?
03:57.48 ``Erik though it is of the lav family, which has anywhere form 4 to 8 wheels
03:57.52 yukonbob what's a pair of wheels among friends?
03:58.23 ``Erik stryker is a pile anyways, half of it is made in canada *cough* :D
03:58.43 yukonbob well -- hopefully once the website is more up/running and there a wiki/gallery, pix will come out of the wordwork.
03:59.09 ``Erik karel has some engineering grade crap on his site
03:59.23 yukonbob url?
03:59.25 ``Erik I'd kinda like to bust out a tape measure and model my house some day
03:59.38 yukonbob ``Erik: /me has had that idea for a while too
03:59.43 ``Erik http://ronja.twibright.com/
03:59.54 yukonbob ;)
04:00.15 ``Erik we had a summer student come and do a model of a reasonably large house from blueprints
04:00.31 ``Erik I THINK he managed to get all the studs in, too
04:00.31 brlcad I have some of the old/original GSI BRL-CAD renderings that can probably finally be posted
04:00.40 yukonbob oh -- karel == Z80-Boy
04:00.44 starseeker That would be cool
04:00.54 ``Erik yeah, karel == clock == z80
04:01.33 yukonbob ya -- that ronja stuff is pretty neat...
04:01.40 ``Erik there're um, m1 pics that'd been public released, that was modelled entirely in old BRL-CAD
04:01.43 yukonbob I wonder how many hours went into it...
04:01.45 brlcad that stryker was a hybrid iirc, predominantly started as pro/e but the slat armor and some other details weren't
04:02.03 ``Erik like in the second volume of the doc, few pages in is a "skinless" render
04:02.21 PrezKennedy i should steal my dad's nick if ts still available on freenode
04:02.34 ``Erik yeah, and some of the proe stuff was gutted and redone in BRL-CAD primitives
04:02.51 ``Erik I know dwayne got heavy on doing that once I got him a clone prototype
04:03.08 ``Erik um
04:03.10 starseeker ``Erik: How
04:03.13 starseeker sorry
04:03.13 ``Erik kermit: No such nick/channel
04:03.26 starseeker ``Erik: How'd the Hubble get a BRL-CAD model, by the way?
04:03.42 ``Erik I think that may've been a hair lee got up his ass
04:03.55 ``Erik he worked at nasa before brl
04:04.19 brlcad yeah, lee was working on a project for the STSI at the time
04:04.54 brlcad that was one of the relatively 'first' real things he modeled
04:05.11 yukonbob is there a BNF available to describe the .g format?
04:05.33 ``Erik no, but there's a description in a file that's sorta almost kinda recent
04:05.53 yukonbob poolio: LaTeX is sooo 1990's -- we all [heart] DocBook now...
04:06.02 yukonbob :)
04:06.04 ``Erik the librt and wdb stuff is reasonably ok to read
04:06.07 PrezKennedy \whois kermit
04:06.14 PrezKennedy dangit
04:06.21 PrezKennedy too much interaction with windoze
04:06.22 ``Erik like, uh, in the libt/g_*.c files, look at the import and export 5 functions
04:06.30 starseeker DocBook is good for very specific types of documentation - those not needing heavy duty mathematics
04:06.48 ``Erik I like LaTeX
04:07.33 yukonbob latex is cool -- and in fact all the docbook work I've done converts to LaTeX, then LaTeX->pdf
04:07.46 poolio yukonbob: :'(
04:08.00 poolio yukonbob: I have to typeset all my math homework now
04:08.04 ``Erik I've only done a tiny bit of docbook type shtuff
04:08.23 yukonbob starseeker: I'd be surprised if there's not math-oriented "docbook" tools out there...
04:08.26 ``Erik both docbook and latex have overly verbose close tags imnsho
04:08.56 brlcad the two 'Plate' renderings (albeit "misfiled") in http://my.brlcad.org/tmp/primitives/ are a nicely detailed pure-csg model
04:09.09 yukonbob poolio: I was only kidding... :) I have two LaTeX manuals that are really nice to have -- once you outgrow the "LaTeX in 20 Minutes" or whatever that text is...
04:10.12 ``Erik yeah, those're the m1 "skinless" renders
04:10.23 ``Erik one of those is in one of the books
04:10.41 brlcad both are (or at least were)
04:11.22 starseeker brlcad: are those the ones someone worried about being on the website even though they were cleared for release?
04:11.55 brlcad starseeker: one of them, yes
04:12.21 ``Erik um, that was one that got striken from a poster pitch
04:12.32 ``Erik struck
04:12.33 ``Erik bleh
04:12.34 brlcad once we have the new website on-line with a proper way to annotate/document the images, when/how released, with descriptions, it'll be better
04:12.46 starseeker Yes.
04:12.50 ``Erik lees proposalcouldn't get approved with that pic on it
04:13.00 starseeker Really??
04:13.01 brlcad ``Erik: yeah, probably, but those are all what you get via the 'make' cmd
04:13.11 ``Erik png has a comment field O.o
04:13.49 brlcad different decades, different folks
04:13.58 yukonbob poolio: I think I've got "The LaTeX Companion" and "Guide to LaTeX"...
04:15.03 poolio I'm really upset, I can't make the QED symbol and I'm done my proof!
04:15.27 starseeker There are some solutions for structured picture viewing - remember something called Scientific Image Database from the mists of time...
04:18.10 starseeker OK, time to put the brain in bureaucracy recovery mode (a.k.a sleep...)
04:18.52 ``Erik ams-latex has a proof environment that parks a qed mark at the end
04:20.03 ``Erik google for "latex qed" gives lots of hits
04:20.34 starseeker Too bad they can't release the hubble model - that'd be cool (particularly if the ray-tracing could interact with the optics...)
04:21.36 CIA-31 BRL-CAD: 03brlcad * r30055 10/brlcad/trunk/src/libbu/parse.c:
04:21.36 CIA-31 BRL-CAD: one more converted over to bu_strlcpy/bu_strlcat. this one was intentionally
04:21.36 CIA-31 BRL-CAD: skipped initially as there's a strncpy going on that intentionally is
04:21.36 CIA-31 BRL-CAD: short-copying a buffer. didn't investigate the cause, whether intentional or
04:21.36 CIA-31 BRL-CAD: not, but leaving alone with a note for now.
04:30.03 brlcad possibly, but it's hard to get your hands on some of those models
04:30.26 Axman6 the commies might get them!
04:31.14 louipc china?
04:31.28 brlcad I had contacts to a couple gusy for the mars rover project a couples years ago and could have gotten the model they used in the ubiquitous animation renderings, but still wouldn't have been able to make it public
04:31.47 Axman6 lame
04:32.02 Axman6 well... i made a paper model when i was a kid... could ou use that?
04:32.07 Axman6 it's a little squished
04:34.54 CIA-31 BRL-CAD: 03brlcad * r30056 10/brlcad/trunk/src/mged/tedit.c: if your gonna tweak ws, might as well do the whole file
04:35.42 louipc heh
04:37.09 CIA-31 BRL-CAD: 03brlcad * r30057 10/brlcad/trunk/NEWS: bob got all of the mged text editing commands (edcodes, edmater, wmater, ted, etc) on the windows platform
04:37.59 ``Erik um, siggraph 05?
04:38.41 ``Erik vgr, er, voyager might be old enough to be releasable
04:40.18 CIA-31 BRL-CAD: 03brlcad * r30058 10/brlcad/trunk/NEWS:
04:40.19 CIA-31 BRL-CAD: Bob also got rtwizard working on windows (at least partially -- he still has to
04:40.19 CIA-31 BRL-CAD: add a few missing commands for some of the extended modes). also made the
04:40.19 CIA-31 BRL-CAD: display managers behave better by automatically deiconifying if needed.
04:40.37 ``Erik heh
04:40.56 ``Erik I loaned dave a couple tcl books this morning, he's going to b working on rewriting that
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05:40.37 brlcad yeah, I know .. but that's might still be months off and he might still get pulled onto something else
05:41.40 brlcad ed had an interesting idea for a quick fix geometry conversion path by using [commercial cad package X] -> STEP/IGES -> Rhino -> 3DM -> BRL-CAD via a new 3dm-g converter that uses the new BREP primitive
05:42.24 brlcad that has a lot of great short-term and long-term merit if it were implemented well enough .. gives a fast conversion path and a new converter all in one step
05:42.34 brlcad I might have to work on that just as part of the brep implementation testing
06:30.14 CIA-31 BRL-CAD: 03brlcad * r30059 10/brlcad/trunk/ (172 files in 25 dirs): even MORE K&R ws style consistency cleanup. this time, make sure there's a space between the ){'s as well as around "else" statements.
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07:06.02 CIA-31 BRL-CAD: 03brlcad * r30060 10/brlcad/trunk/ (17 files in 6 dirs): (log message trimmed)
07:06.02 CIA-31 BRL-CAD: refactor libpkg so that the windows-specific pkg_init and pkg_terminate
07:06.02 CIA-31 BRL-CAD: functions should no longer be necessary. according to the msdn docs, the
07:06.02 CIA-31 BRL-CAD: functions may be called multiple times as they internally reference count the
07:06.02 CIA-31 BRL-CAD: number of calls to each and deallocated on the last/matching WSACleanup that
07:06.04 CIA-31 BRL-CAD: corresponds to the number of calls to WSAStartup. the calls were moved directly
07:06.06 CIA-31 BRL-CAD: into pkg_open and pkg_close (which will get picked up by all callers including
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07:33.45 CIA-31 BRL-CAD: 03brlcad * r30061 10/brlcad/trunk/src/burst/Sc.h: quell warnings and remove non-ansi decls by removing the oddly named _STDC_ sections
07:34.47 CIA-31 BRL-CAD: 03brlcad * r30062 10/brlcad/trunk/src/other/tk/unix/: ends up with a libtclstub8.5.a.E in here anyways, so add to ignore list
07:38.27 CIA-31 BRL-CAD: 03brlcad * r30063 10/brlcad/trunk/src/rt/: ignore librttherm.a and libremrt.a
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10:41.49 Gruni Hideho.
12:20.33 starseeker Interesting - apparently someone has located some of the old Pioneer probe drawings: http://www.ninfinger.org/~sven/models/vault2006/pioneerbp.zip
12:21.34 Z80-Boy made in BRL-CAD?
12:21.50 starseeker Don't think so
12:22.09 starseeker these look like they either are or are based off of the 2D prints NASA would have used
12:22.44 starseeker Naturally it doesn't seem to include much in the way of dimensions... grumble...
13:36.36 b0ef brlcad: I'm requesting iges-g then, but are we able to use these files in brlcad?
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15:31.07 brlcad b0ef: depends what level of use you're looking for and what sort of iges it is -- you should be able to at least bring in the model, perform basic transformations, basic analyses (it should be nirtable), and render it
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16:20.03 starseeker brlcad: Is it still the case that BRL-CAD doesn't have a simple way to recover deleted geometry? (E.g. an undo option?)
16:29.53 brlcad nope, there is no undo in mged
16:30.36 brlcad there are commit actions that don't immediately apply, like solid edit mode, but once you apply/reject/accept, the action is atomic and done
16:31.50 brlcad a long-standing request but was actually a specific design intent, at least initially
16:32.23 brlcad i don't think anyone is opposed to the idea of undo any more, but the details to implement it properly are a bit tricky
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18:20.59 CIA-31 BRL-CAD: 03bob1961 * r30064 10/brlcad/trunk/src/libpkg/pkg.c: If we're going to perform a WSACleanup() in pkg_close() we also need to call WSAStartup() in pkg_getclient() and _pkg_permserver_impl().
18:23.22 CIA-31 BRL-CAD: 03bob1961 * r30065 10/brlcad/trunk/src/tclscripts/rtwizard/lib/FbPage.itk: Mods to get things working on Windows.
18:25.27 CIA-31 BRL-CAD: 03bob1961 * r30066 10/brlcad/trunk/src/util/bw-pix.c: Tweak for compiling on Windows.
18:29.13 CIA-31 BRL-CAD: 03bob1961 * r30067 10/brlcad/trunk/src/ (archer/archer.bat mged/mged.bat): Minor tweaks.
18:32.24 CIA-31 BRL-CAD: 03bob1961 * r30068 10/brlcad/trunk/include/ (raytrace.h rtgeom.h): Moved a few metaball function declarations from rtgeom.h to raytrace.h.
18:38.14 CIA-31 BRL-CAD: 03brlcad * r30069 10/brlcad/trunk/ (doc/deprecation.txt include/bu.h src/libbu/brlcad_path.c): make bu_brlcad_root/bu_brlcad_data both return a const char * instead of a char * so callers are more aware that they should copy the string if they want to modify it
19:30.17 CIA-31 BRL-CAD: 03bob1961 * r30070 10/brlcad/trunk/src/libfb/if_disk.c: Added a call to setmode() in dsk_open(). This fixes the problem where bad pix files were getting created.
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20:45.14 CIA-31 BRL-CAD: 03brlcad * r30071 10/brlcad/trunk/NEWS:
20:45.14 CIA-31 BRL-CAD: Bob fixed PIX image file creation bug on Windows .. this fixes a problem with
20:45.15 CIA-31 BRL-CAD: many of the pix and framebuffer tools that render directly to a pix file via
20:45.15 CIA-31 BRL-CAD: libfb. the problem was the file was not opened in 'binary mode', which is
20:45.15 CIA-31 BRL-CAD: required on windows or it will perform EOL translations (wreaking all sorts of
20:45.17 CIA-31 BRL-CAD: havoc of course with a pix image)
20:46.40 brlcad ../../include/raytrace.h:3527: warning: 'struct rt_metaball_internal' declared inside parameter list
20:46.43 brlcad ../../include/raytrace.h:3527: warning: its scope is only this definition or declaration, which is probably not what you want
20:54.04 ``Erik heh, yeah, bob went moving my shit around
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20:55.59 ``Erik he moved crap i defined in rtgeom.h (after the struct def) into raytrace.h, and a lot of stuff includes raytrace.h without rtgeom.h
20:59.18 CIA-31 BRL-CAD: 03erikgreenwald * r30072 10/brlcad/trunk/include/raytrace.h: include a forward decl for struct defined in rtgeom.h
21:00.11 ``Erik hackish, but works :/
21:07.10 CIA-31 BRL-CAD: 03brlcad * r30073 10/brlcad/trunk/src/lgt/ (extern.h glob.c lgt.c): er, not clear why lgt request the data segment address .. don't do it so we can remove the sbrk check
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21:25.49 CIA-31 BRL-CAD: 03brlcad * r30074 10/brlcad/trunk/src/remrt/rtsrv.c: remove the unused beginptr and associated sbrk() calls
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21:52.12 CIA-31 BRL-CAD: 03brlcad * r30075 10/brlcad/trunk/ (include/config_win.h src/libbu/malloc.c): move the Windows-specific empty sbrk() hack into config_win.h as just being NULL
22:26.49 starseeker brlcad, ``Erik: anybody still on?
22:26.57 brlcad yes?
22:27.09 starseeker Just wondering about the BRL-CAD shortcuts
22:27.15 starseeker are they customizable?
22:27.21 starseeker for movement, rotation, etc
22:28.02 brlcad "BRL-CAD shortcuts"? I presume you mean "MGED shortcuts" ... ;)
22:28.08 starseeker er, yeah :-)
22:30.26 brlcad yeah, they can be customized -- it's all in tcl land for the bindings
22:30.52 starseeker Cool
22:31.00 brlcad but how easy and what exactly you have to do for a given binding or to make new ones isn't exactly well-defined or cleaned up for end-users to easily change
22:31.10 starseeker Ah.
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22:31.37 brlcad most people don't even know that the bindings exist other than the basics
22:31.46 brlcad and there are different bindings for each window
22:32.03 brlcad e.g. if you're in the command window, you sort of expect cursor control bindings
22:32.21 brlcad the "hotkeys" in the graphics window, though, are just single keys
22:33.11 starseeker I'm not sure it maps all that cleanly to mged...
22:43.40 brlcad yeah, I could write a book on potential new-user usability improvements that mged could benefit from..
22:44.19 brlcad the issue is usually more that once you do know how things behave, you can be quite proficient .. and responsive to a wide range of modeling/analysis needs
22:45.49 starseeker Oh, no question :-) I know I need to be patient.
22:46.20 brlcad it's a sad result of continual on-going reprioritization .. do you stop and work on mged usability for new users (that are only new once) or work on new feature X that they need now
22:46.55 starseeker Put that way, the choice is obvious
22:47.24 starseeker to heck with the newbies :-P
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22:52.23 brlcad yeah, but you can only keep saying that for so long
22:52.27 brlcad before it's a major problem :)
22:52.31 brlcad like it is now :)
22:55.01 louipc you need some stats like the percentage of new users that continue to use brlcad after x amount of time, how often they use it, etc...
22:55.24 brlcad a lot of the most fundamental problems stem from not having easy access to an evaluated representation (e.g. a csg implicit in evaluated brep form) .. which is where most of my long term plans have stemmed from (instead of stopping to tweak mged, for example)
22:55.50 louipc I don't have much time to learn how to model in brlcad other than to toy with it once in awhile.
22:56.21 louipc hm
22:56.49 brlcad because I could make mged relatively as easy to use as other big-name cad packages for new users, but then there are still some critical issues like shaded displays and a clean geometry management api on the code side of things
22:57.56 brlcad wow, this EMS is awesome .. and pretty damn strong, can't take the highest setting
23:07.52 louipc hah
23:11.04 yukonbob ?EMS
23:13.45 CIA-31 BRL-CAD: 03brlcad * r30076 10/brlcad/trunk/ (5 files in 3 dirs): finally remove the mk_poly/mk_polysolid/mk_fpoly routines for procedurally creating polysolid primitives. the BoT primitive replaced them a long while ago and have been marked obsolete more than long enough
23:16.12 CIA-31 BRL-CAD: 03bob1961 * r30077 10/brlcad/trunk/src/tclscripts/rtwizard/lib/ (PictureTypeE.itcl PictureTypeF.itcl): Mods for running on Windows. Also cleaned up the catch statements.
23:17.07 brlcad ~ems
23:17.08 ibot i heard ems is an Electronic Muscle Stimulator .. see http://en.wikipedia.org/wiki/Electronic_Muscle_Stimulation
23:17.50 brlcad fun stuff :)
23:19.03 brlcad first tried one at my physical therapist last year when I had a rotator cuff injury on my shoulder
23:19.27 alex_joni sounds like "10 things you can't do while beeing electrocuted" from brainiac
23:19.31 brlcad ordered one a couple days ago, arrived earlier today .. been using it for the past few hours playing with settings while I code :)
23:20.55 brlcad should be really nice for workout warmup/recovery
23:20.57 alex_joni http://www.g4tv.com/brainiac/videos/index.html
23:21.32 alex_joni brlcad: don't try it while shaving :)
23:25.31 brlcad hm, won't play here
23:25.37 brlcad loads but doesn't play
23:26.14 brlcad it locks up your muscle, I don't think I'd anything that required the muscles being stimulated
23:26.30 brlcad the contractions can be quite intense depending on the setting
23:38.14 CIA-31 BRL-CAD: 03brlcad * r30078 10/brlcad/trunk/src/mged/rtif.c: quell warnings, bu_brlcad_* return const now
23:42.39 CIA-31 BRL-CAD: 03brlcad * r30079 10/brlcad/trunk/src/proc-db/ (picket_fence.c pix2g.c spltest.c): quell warnings
23:45.02 CIA-31 BRL-CAD: 03brlcad * r30080 10/brlcad/trunk/ (9 files in 8 dirs): finally remove the obsolete write_shell_as_polysolid that was replaced by mk_bot_from_nmg during the 6.0 release
23:47.00 CIA-31 BRL-CAD: 03brlcad * r30081 10/brlcad/trunk/src/proc-db/ (contours.c pix2g.c): quell warnings
23:57.32 *** join/#brlcad starseeker (n=CY@c-68-33-217-173.hsd1.md.comcast.net)
23:59.17 starseeker Huh - anybody heard of these guys before? http://www.ninfinger.org/~sven/models/guidelines.html
23:59.33 starseeker Their archives seem to have quite a lot of drawings and photos of cool stuff :-)

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