IRC log for #brlcad on 20090626

00:06.29 Ralith ?
00:25.07 starseeker is slightly unnerved that he couldn't put humpty-dumpty newton iterator back together again...
00:37.43 ``Erik heh
00:55.07 brlcad Ralith: server was k-lined, took a couple hours to get unblocked
00:55.12 brlcad cgi:irc abuse
00:55.38 Ralith ah.
00:55.46 Ralith doesn't cgi:irc have an option to forward the user's ip to the ircd?
00:55.53 Ralith allowing specific bans?
01:02.54 ``Erik I thought the cgi portal only allowed messages to/from the channel it was configured for, how do ya abuse it? O.o
01:03.52 Ralith it can be set up like that, but it's also possible to use it as a generalized IRC client (even to arbitrary networks)
01:05.24 ``Erik was it actual abuse, not an overzealous ircop/script?
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05:37.48 CIA-32 BRL-CAD: 03Jdoliner 07http://brlcad.org * r1507 10/wiki/User:Jdoliner:
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10:39.23 d-lo mernin all
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12:05.55 louipc mernin
12:06.03 louipc check this out: http://labs.trolltech.com/blogs/2008/12/02/widgets-enter-the-third-dimension-wolfenqt/
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13:00.14 brlcad that's pretty cool
13:07.22 ``Erik o.O
13:18.47 d-lo wolfen-qt. heh. nice
13:27.10 ``Erik hm, ms labs had something like that 10 yrs ago :/
13:27.26 ``Erik I think the called it gallery or something
13:28.09 ``Erik not using wolf3d to demo, but same tech
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15:31.39 starseeker ``Erik: the cool part, as I understand it, is specifically getting Qt in it
15:32.11 starseeker unfortunately, that's still not what we need :-/
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17:40.23 ``Erik dangit
17:57.50 CIA-32 BRL-CAD: 03starseeker * r34887 10/brlcad/trunk/src/librt/primitives/brep/brep.cpp: Ah ha. DID need to pass in the count of previous intersects to ensure correct assignments to t, N and ouv. Results should be identical now.
17:59.14 starseeker wishes he could erase that particular section of the commit history... <turns red>
18:00.08 brlcad heh, still some things not matching up?
18:00.46 starseeker no, it looks OK now
18:00.54 brlcad I mean before that commit
18:01.00 starseeker oh, yeah
18:01.03 brlcad the pic looked good
18:01.10 brlcad something else was fluxxored?
18:01.15 starseeker yeah, shape1.s didn't trigger it
18:01.20 brlcad ah
18:01.56 starseeker basically the original setup was counting on intersects always being the total hit count for the ray, but we were using it locally
18:02.18 brlcad well you did at least narrow it down to just initial state value problems, that certainly should have helped
18:02.28 starseeker nods
18:03.10 starseeker basically, the intersects variable was doing two different jobs, which worked when everything was in one big happy function but showed up when the intersection count went local
18:04.44 starseeker since we're planning to rework that whole section anyhow I probably shouldn't have bothered, but it was getting on my nerves
18:13.17 brlcad its good refactoring practice regardless
18:46.47 starseeker brlcad: we're getting a problem on OSX 10.5 - mged's getting a bus error when it tries to start up. gdb is complaining about not finding .o files for information, but does flag the crash in dm-X.c somewhere
18:47.06 starseeker are you seeing anything similar on your mac?
18:47.47 brlcad yeah, I've seen that
18:48.30 starseeker any magic incantations I can give it to make it go away?
18:48.37 brlcad was investigating a little through the week but didn't get a lot of time to work it, one of a few things on my list today
18:48.42 brlcad yeah, run classic ;)
18:48.50 starseeker heh
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19:03.10 louipc classic rules
19:12.43 brlcad starseeker: curious, can you try running DISPLAY=hostname:0 instead of just :0
19:15.13 ``Erik might need to xhost first
19:15.27 starseeker brlcad: on the 10.5 mac?
19:15.30 brlcad yes
19:15.31 starseeker one sec...
19:17.15 ``Erik can try when he gets home
19:17.16 starseeker even with xhost, just says "can't connect to display hostname:0"
19:17.39 ``Erik just did an up and install on my home lappy, just have to get there to try running it
19:18.26 brlcad starseeker: defaults write org.x.X11 nolisten_tcp 0
19:18.35 brlcad quit X11, restart it
19:21.46 brlcad the latest 10.5 disables remote connections, that should re-enable them -- which is the point of the hostname:0 test
19:22.01 brlcad as I'm pretty sure the problem is a 32-bit-compiled X11 application trying to talk to a 64-bit X11
19:22.13 ``Erik I thought 10.4 needed that, too
19:24.29 starseeker brlcad: is that first line a command?
19:24.38 starseeker or a setting somewhere?
19:24.59 brlcad it's a command to be run in a terminal
19:25.23 brlcad sets a setting for the x11 application :)
19:28.07 starseeker cool. OK, tried that - obviously makes an attempt in that focus changes from the mac terminal to X11, but still gives bus error
19:29.00 brlcad you ran defaults, then tried DISPLAY=hostname:0 ?
19:34.13 starseeker yes
19:38.56 starseeker after restarting X11
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20:30.54 starseeker glares at the spam on the brlcad-commits list
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20:40.27 *** topic/#brlcad is BRL-CAD Open Source Solid Modeling || http://brlcad.org || http://sf.net/projects/brlcad || Release 7.14.8 posted (20090511) || GSoC2009 Next Step: code code, type type, commit frequently while you work! update wiki/blog on daily progress.
20:55.07 CIA-32 BRL-CAD: 03irpguardian * r34888 10/brlcad/trunk/src/proc-db/human.c:
20:55.09 CIA-32 BRL-CAD: Added vectoring equations that will lead to the limbs to be positioned and repositioned
20:55.11 CIA-32 BRL-CAD: by using rotation matrices. Also includes a demo of the process on an rcc primitive.
20:55.31 brlcad woot
20:56.16 brlcad yeah, really rare drive-by spamming .. have to see how that made it through
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21:56.12 brlcad jdoliner: how's it going?
21:56.26 jdoliner not bad
21:56.33 jdoliner I hunted down a bunch of bugs
21:56.47 jdoliner and I've been puzzling since last night over how to reconstruct the geometry
21:57.10 jdoliner it's a bit tricky it seems
21:57.23 jdoliner I'm looking at nmg right now to see what they did
21:58.43 jdoliner oh also, the problem I was having with segfaults was a really annoying one.
21:58.51 brlcad are you familiar with euler operations?
21:59.11 jdoliner perhaps, say more
22:23.00 ``Erik first, ya oil everything up, then ya start operating
22:23.43 ``Erik 3 rotations to get the direction/twist you want
22:24.18 ``Erik er, wait, that's euler angles
22:24.18 ``Erik sorry
22:24.53 ``Erik http://en.wikipedia.org/wiki/Solid_modeling and search euler
22:57.02 brlcad jdoliner: basically, (summarized in the link erik posted) it's a way to perform topological transformations on geometry in such a way that solidity preservation is guaranteed
23:01.47 brlcad by looking at the various components of a boundary representation (e.g., vertices, edges, faces, shells) and ways they can interact
23:02.12 brlcad making a new edge, extruding a face, intersecting faces, splitting surfaces, ..
23:02.36 brlcad lots of info in this paper of relevance: http://www.nakl.t.u-tokyo.ac.jp/~masuda/papers/cad93.pdf
23:04.38 brlcad should help in figuring out how to perform a given restructuring
23:38.54 CIA-32 BRL-CAD: 03brlcad * r34889 10/brlcad/trunk/misc/win32-msvc8/Makefile.am: bob removed g-adrt from the windows build so remove the dist inclusion
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