IRC log for #brlcad on 20081222

00:52.13 *** join/#brlcad IriX64 (n=IriX64@bas2-sudbury98-1177872035.dsl.bell.ca)
00:53.25 IriX64 http://rafb.net/p/fqubIR96.html <--- outta my league here, i don't parle` cpp too well.
00:54.03 IriX64 used ./configure (svn as of half an hour ago)
01:01.40 *** join/#brlcad novakyu (i=novakyu@lecont-156-003.Physics.Berkeley.EDU)
01:01.49 novakyu hi
01:02.43 novakyu i have a question about converting from BRL-CAD to a format that can be opened in other 3D CAD programs like SolidWorks and Unigraphics
01:03.14 novakyu i've tried converting to a few formats like IGES and DXF, but none of them seem to work at all
01:03.58 novakyu VRML produces something that does resemble the original drawing, but a lot of details are wrong and i get lets of web-like things.
01:40.18 *** join/#brlcad Ralith (n=ralith@216.162.199.202)
01:55.48 *** join/#brlcad Ralith (n=ralith@216.162.199.202)
03:15.59 brlcad novakyu: so what was your question?
03:34.49 DanielFalck brlcad: I seem to be getting tessellation failure when trying to do a g-stl of a revolved part. Any ideas on how to trouble shoot it? thanks
03:35.30 DanielFalck doing " g-stl -o prof2.stl prof2.g rev1"
03:48.10 novakyu brlcad: i have a part drawn in BRL-CAD
03:48.43 novakyu i want to send it to someone who uses Unigraphics or SolidWorks, but i can't seem to convert it to any compatible format
03:49.26 novakyu i've tried some of the g-* converters (without special options), but doesn't really seem to work
04:47.12 *** join/#brlcad Ralith (n=ralith@216.162.199.202)
04:53.37 brlcad DanielFalck: ah, I'm pretty sure tessellation of revolves has not been implemented yet
04:53.59 DanielFalck that would be the reason. thanks.
04:54.14 brlcad novakyu: yes, I understood that -- but you said you had a question -- what's the question? :)
04:54.36 brlcad DanielFalck: hm, hadn't thought of that for the way you're using it..
04:54.44 brlcad kinda critical, my bad
04:55.07 brlcad maybe someone(tm) will get ambitious over the next week
04:55.12 DanielFalck is that one pretty involved to finish?
04:55.19 DanielFalck ok
04:55.20 DanielFalck thanks
04:55.32 brlcad not really, no more complicated than extrude
04:55.57 DanielFalck when you get a chance, try it out a bit and see what you think of the implementation
04:56.13 DanielFalck seems a little weird to me or I'm probably missing something
04:57.17 brlcad something in particular seems wierd?
04:57.37 DanielFalck I don't really understand the vector in start plane part
04:58.11 DanielFalck say I try and revolve a rectangle that has corners at 0 0 and 6,4
04:58.15 DanielFalck around the x axis
04:58.29 DanielFalck I take it that the vertex is 0 0 0
04:58.38 DanielFalck and the revolve axis could be 1 0 0
04:59.39 DanielFalck I don't know what vector in start plane should be (without just screwing with it and coming up with stuff by trial and error)
05:00.29 DanielFalck revolving around Y I used 0 0 0 0 1 0 and 0 0 1 to get what I thought it should do
05:00.46 DanielFalck so I'm just clueless as usual : )
05:00.55 brlcad the vector in start plane sounds like the rotational orientation
05:01.23 DanielFalck ok, as in what direction to rotate?
05:01.34 DanielFalck cw or ccw depending on the vector
05:01.36 brlcad so it's revolving around the x-axis in your example, but where is the starting point -- that'd be the vector
05:02.00 brlcad no, the rotation is probably purely based on the revolve axis
05:02.04 brlcad 1 0 0 vs -1 0 0
05:02.06 DanielFalck ok, so vector is starting point
05:02.34 brlcad basically
05:02.56 brlcad basically defining a starting "L" for the rotation
05:03.04 DanielFalck ok
05:03.17 DanielFalck 2 vectors then
05:03.20 brlcad right
05:03.30 DanielFalck ok, that makes sense now
05:03.35 DanielFalck right hand rule
05:03.43 brlcad better be :)
05:04.16 DanielFalck another tesselation clue that I should have caught was that rendering doesn't work
05:04.37 DanielFalck I just got some random pixels in the frame buffer
05:04.53 DanielFalck so the mystery is solved
05:05.03 brlcad hm, ray-tracing should be all working
05:05.14 brlcad ray-tracing doesn't involve tessellation
05:05.29 brlcad did the wireframe look right?
05:05.30 DanielFalck actually, it worked in one case, but not in several others
05:05.36 DanielFalck the wireframe was ok
05:05.45 DanielFalck I can send you the offending file , if you want
05:05.54 brlcad then probably some rendering bug -- you're probably the second person to try using it
05:06.17 DanielFalck I generated a dxf of an odd shape and revolved it
05:06.57 brlcad hm, yeah, post up/send your .g
05:07.11 DanielFalck where at?
05:07.14 DanielFalck email?
05:07.49 brlcad mind filling out a tracker? it'll get more visibility
05:07.56 DanielFalck ok, can do that
05:08.01 DanielFalck I can attach the file
05:08.11 brlcad https://sourceforge.net/tracker2/?func=add&group_id=105292&atid=640802
05:08.12 DanielFalck I have a sourceforge account
05:17.12 DanielFalck Ok, added to bugtracker
05:19.47 brlcad cool, thanks
05:25.52 DanielFalck should I put in a request for completion of tessellation, or is that already on your list?
05:27.23 novakyu brlcad: oh, the question would be ... how do i convert from .g to a format that's readable by SolidWorks or Unigraphics?
05:28.18 brlcad DanielFalck: can't ever hurt
05:28.26 CIA-6 BRL-CAD: 03brlcad * r33409 10/brlcad/trunk/TODO: implement tess() too
05:28.43 brlcad there were a few remaining items, but tess specifically wasn't listed (but is now)
05:30.50 brlcad novakyu: that would be one of the exporters that you've been trying to use, g-dxf g-iges g-obj g-stl g-x3d are all probably formats supported by those two
05:31.22 brlcad the issue is more the geometric representation transformation that occurs when you go from our format to one of those
05:32.08 brlcad ours predominantly uses implicit geometry (smooth surfaces) .. not a faceted geometry, so it has to try and tessellate the geometry to do the export
05:32.57 brlcad tessellation is a rather tricky business -- very sensitive to tolerances, geometry, model size, geometry in use, operations, and proper region levels
05:40.54 DanielFalck brlcad: sorry I put that in the wrong category. I'll be better next time. thanks
05:43.29 brlcad no big deal :)
05:43.38 brlcad thanks for taking the time
05:46.33 *** join/#brlcad pacman87 (n=timothy@pool-71-170-39-105.dllstx.fios.verizon.net)
05:46.49 brlcad speak of the devil :)
05:46.55 pacman87 just read the email ;)
05:46.57 brlcad howdy pacman87
05:47.04 pacman87 can i get a copy of the *.g, too?
05:47.12 brlcad pacman87: it's on the tracker
05:47.28 brlcad see the one the image was moved to
05:48.23 pacman87 ok, thanks
05:48.36 brlcad https://sourceforge.net/tracker2/?func=detail&aid=2457559&group_id=105292&atid=640805 and https://sourceforge.net/tracker2/?func=detail&aid=2457527&group_id=105292&atid=640802
05:48.47 brlcad the bug is the latter
05:50.02 pacman87 ok, thanks
05:50.12 pacman87 this semester got pretty busy for me
05:50.38 pacman87 last week of class i was up for 52 hours trying to finish everything
05:50.52 pacman87 senior design project and another project
05:51.04 DanielFalck what's your major?
05:51.09 pacman87 ME/EE
05:51.13 DanielFalck wow
05:52.12 pacman87 well, time to check out a new copy of the source
05:55.27 brlcad pacman87: sounds like it's been fun :)
05:55.56 pacman87 for certain definitions of "fun"
05:55.58 brlcad understandable that you've not been around -- that's a nice workload there
05:56.09 pacman87 17 hours, 2 labs all engr
05:56.19 pacman87 including the sr. design project
06:06.27 pacman87 compiling, time for bed now
06:06.32 pacman87 back to work in the morning :)
06:08.22 novakyu brlcad: so, you mean i have to play with options?
07:08.24 brlcad novakyu: that's a start -- also making sure that the geometry you're trying to export is properly modeled
07:42.29 novakyu so, here's some problem i've been having, then.
07:43.47 novakyu when i have a region with two rcc shapes (at right angles, just touching or crossing each other) and i export that to VRML, i get webs between the two rods
07:44.06 novakyu is this just an issue with VRML or does it sound like i'm doing something wrong?
08:28.38 *** join/#brlcad alex_joni (n=juve@emc/board-of-directors/alexjoni)
09:15.33 *** join/#brlcad clock_ (n=clock@77-58-236-196.dclient.hispeed.ch)
09:42.29 *** join/#brlcad mafm (n=mafm@172.Red-83-45-253.dynamicIP.rima-tde.net)
09:44.30 mafm hi
09:46.42 *** join/#brlcad Elrohir (n=kvirc@p5B14F1A8.dip.t-dialin.net)
10:15.14 *** join/#brlcad clock_ (n=clock@84-72-91-240.dclient.hispeed.ch)
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11:05.55 *** join/#brlcad Ralith (n=ralith@216.162.199.202)
12:56.47 *** join/#brlcad skitter (n=ubuntu@217.118.79.42)
12:57.51 skitter halo, halo!
13:27.17 *** join/#brlcad skitter (n=ubuntu@217.118.79.42)
14:37.30 brlcad howdy
14:37.55 DanielFalck good morning brlcad
14:38.00 brlcad mornin!
14:40.16 DanielFalck your sgi script and the pipe command have given me an idea...maybe not a good one, but I think I could probably use brlcad to simulate machining away blocks of steel - ala cnc machine code
14:40.33 DanielFalck kind of a 'backplot' of the cnc code
14:41.22 brlcad that actually sounds pretty cool
14:41.31 DanielFalck start with the block of steel and nibble away at it with a solid in the shape of the end mill/cutter
14:42.35 DanielFalck with the revolve command it might even be possible to show a shape being turned
14:42.36 brlcad nods
14:42.55 brlcad that would look pretty interesting unevaluated
14:43.15 brlcad and then the raytrace should show what evaluated will look like
14:43.21 DanielFalck I'll keep learning brlcad and see what I can do
14:43.32 brlcad presumably the cutter head would be the pipe diameter?
14:43.39 DanielFalck yes. the final raytrace would be very realistic
14:43.53 DanielFalck yes, the pipe dia
14:43.59 DanielFalck for a ball end mill
14:44.11 brlcad nods
14:44.17 DanielFalck many many cylinders for a flat end mill
14:44.31 DanielFalck cones for engraving v-bits
14:45.23 DanielFalck looking at the sgi script, animation is surely possible- so that would be good too
14:45.41 DanielFalck ah, the dreams I can come up with :)
14:46.54 brlcad yeah, that would be awesome
14:49.46 DanielFalck the 'help' command in mged is very good for me
14:50.03 DanielFalck I'm exploring
14:50.37 brlcad :)
14:55.58 starseeker is freezing
14:56.23 starseeker note to self - check weather report BEFORE heading to work
15:22.53 CIA-6 BRL-CAD: 03bob1961 * r33410 10/brlcad/trunk/src/libged/ged.c: Modified ged_open() to acquire a new RT material head.
15:25.31 CIA-6 BRL-CAD: 03bob1961 * r33411 10/brlcad/trunk/src/mged/ (cmd.c mged.c mged.h setup.c): Initial modifications to make libged commands available to MGED. The first test case exposes the gqa command.
15:32.09 CIA-6 BRL-CAD: 03starseeker * r33412 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am attr.xml): Add attr command Docbook, Janine and Cliff
15:34.54 CIA-6 BRL-CAD: 03bob1961 * r33413 10/brlcad/trunk/src/mged/ (cmd.c mged.h setup.c): Exposing libged's tire command.
15:38.04 CIA-6 BRL-CAD: 03starseeker * r33414 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am autoview.xml): Add docbook autoview man page - conversion by Janine and Cliff
15:42.44 CIA-6 BRL-CAD: 03starseeker * r33415 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am bev.xml): Add docbook bev man page - conversion by Janine and Cliff
15:51.33 CIA-6 BRL-CAD: 03starseeker * r33416 10/brlcad/trunk/doc/docbook/system/man1/en/Makefile.am: Add docbook bot_condense man page - conversion by Janine and Cliff
15:52.28 CIA-6 BRL-CAD: 03starseeker * r33417 10/brlcad/trunk/doc/docbook/system/man1/en/bot_condense.xml: Uh, yeah... add the man page too, not just the Makefile.am change...
15:55.07 brlcad go go janine go :)
15:56.30 skitter brlcad: who's janine? One of PrezKennedy's daughters? If yes, I want to marry her!
15:57.13 CIA-6 BRL-CAD: 03brlcad * r33418 10/brlcad/trunk/NEWS: more conversion of documentation to docbook format, thx janine (and cliff via proxy)
15:57.40 brlcad skitter: i'm sure she's somebody's daughter, but not PrezKennedy's
15:58.05 skitter brlcad: is it a song?
15:58.49 brlcad is what a song?
15:58.51 skitter brlcad: "go janine, go, ...yeah! go janine go" - is it a song i don't know?
15:59.19 brlcad it may be, but if it is, I don't know about that song either
15:59.51 skitter brlcad: am i right to think i need to add final version of my work into the brl-cad's tracker - and wait untill someone can implement it?
16:00.20 skitter brlcad: then what do your words "go go janine go" mean?
16:00.55 brlcad you should add the final version of your work to the tracker and get one of us to review/commit it, yes
16:01.16 brlcad those words express appreciation and excitement for the progress janine made this week
16:01.34 brlcad see all the cia lines preceeding
16:02.39 brlcad starseeker: and the news line isn't to diminish your efforts on that item -- just sharing the love
16:03.11 brlcad welcome to add yourself in
16:03.37 brlcad needs to get it tagged today before parker does too much damage :)
16:05.02 skitter ok
16:53.28 starseeker brlcad: np :-)
17:01.29 skitter starseeker: or brlcad: am i right when i think if i say to my folks my account on sourceforge.net - they can see what have i up-loaded to open source projects?
17:04.16 brlcad skitter: if they know the project, sure
17:04.30 brlcad or from your account, you can certainly see your submissions on your user page
17:05.41 skitter brlcad: but can this account show my 'feats' to random users?
17:08.28 skitter i mean i can not browse rules and terms of sourceforge to-and-fro - can users "go" to, say, skitter-z-skater.sourceforge.net - and see what projects i am in and what exactly am i do for those projects. Have to save non-cheap internet traffic - that's a source of my lame questions :(
17:08.42 skitter also, eyes pain from computer last time :(
17:09.02 brlcad skitter: you can show your feats to random users by showing them your user page, otherwise the contributions are spread out across the projects you contribute to
17:09.19 brlcad if they're all with one project, then yeah, it's pretty easily to get the summary from any of the tracker pages
17:10.38 skitter brlcad: ok, i will keep it on my mind next time i will re-arrange my page. i have only 100 kb of plain text of mged cmd index - and i'm re-vising old xml files with aspell and try to smooth it.
17:39.31 *** join/#brlcad skitter (n=ubuntu@217.118.79.36)
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18:06.16 *** join/#brlcad WhiteCalf (i=WhiteCal@whitecalf.net)
18:54.31 CIA-6 BRL-CAD: 03starseeker * r33419 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am bot_decimate.xml): Add docbook bot_decimate man page - conversion by Janine and Cliff
18:58.35 CIA-6 BRL-CAD: 03starseeker * r33420 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am bot_face_fuse.xml): Add docbook bot_face_fuse man page - conversion by Janine and Cliff
19:03.36 CIA-6 BRL-CAD: 03starseeker * r33421 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am bot_face_sort.xml): Add docbook bot_face_sort man page - conversion by Janine and Cliff
19:08.54 CIA-6 BRL-CAD: 03starseeker * r33422 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am bot_vertex_fuse.xml): Add docbook bot_vertex_fuse man page - conversion by Janine and Cliff
19:16.40 CIA-6 BRL-CAD: 03starseeker * r33423 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am build_region.xml): Add docbook build_region man page - conversion by Janine and Cliff
19:22.33 CIA-6 BRL-CAD: 03starseeker * r33424 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am c.xml): Add docbook c man page - conversion by Janine and Cliff
19:28.14 CIA-6 BRL-CAD: 03starseeker * r33425 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am cat.xml): Add docbook cat man page - conversion by Janine and Cliff
20:03.27 *** join/#brlcad skitter (n=ubuntu@217.118.79.41)
20:04.18 skitter brlcad: where can i get GL/glu.h in ubuntu? there's somethng wrong - insatiable dependencies and so on...
20:04.44 skitter *impossible dependencies*
20:05.12 skitter ibot: glu.h
20:25.48 *** part/#brlcad skitter (n=ubuntu@217.118.79.41)
21:33.48 *** join/#brlcad jonored (n=jonored@LAZARUS2.WIFI.WPI.EDU)
21:39.42 CIA-6 BRL-CAD: 03starseeker * r33426 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am center.xml): Add docbook center man page - conversion by Janine and Cliff
22:07.06 yukonbob tosses a wrench after skitter
22:07.16 yukonbob gotsta stick around if you want an answer
22:07.30 archivist he got answer next door
22:07.51 yukonbob 667, the neighbour of the beast
22:08.01 archivist he was loading EMC2
22:09.54 yukonbob ?"emc2"
22:10.53 yukonbob eletro-magnetic colander ver. 2?
22:11.56 archivist cnc control software http://www.linuxcnc.org
22:12.50 yukonbob nice...
22:20.44 CIA-6 BRL-CAD: 03starseeker * r33427 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am color.xml): Add docbook color man page - conversion by Janine and Cliff
22:24.35 CIA-6 BRL-CAD: 03starseeker * r33428 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am comb_color.xml): Add docbook comb_color man page - conversion by Janine and Cliff
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22:31.19 CIA-6 BRL-CAD: 03starseeker * r33429 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am copyeval.xml): Add docbook copyeval man page - conversion by Janine and Cliff
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22:35.23 CIA-6 BRL-CAD: 03starseeker * r33430 10/brlcad/trunk/doc/docbook/system/man1/en/ (Makefile.am copymat.xml): Add docbook copymat man page - conversion by Janine and Cliff
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23:52.58 *** join/#brlcad Elrohir (n=kvirc@p5B14C941.dip.t-dialin.net)

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