IRC log for #brlcad on 20111007

00:43.55 CIA-48 BRL-CAD: 03abhi2011 * r47160 10/brlcad/trunk/src/libged/simulate/ (simrt.c simrt.h simutils.c): Began to actually shoot rays towards simulation geometry, needs some debugging(issues during memory cleanup)
00:45.44 CIA-48 BRL-CAD: 03Abhi2011 07http://brlcad.org * r3179 10/wiki/User:Abhijit: /* Log */
02:14.18 CIA-48 BRL-CAD: 03starseeker * r47161 10/brlcad/trunk/misc/CMake/FindLEMON.cmake: Hmm. Don't try moving things if source and destination are the same...
02:14.42 starseeker bet that's what pawleeq hit
02:48.39 brlcad abhi2011: your build is lacking debug information -- you should get a much more informative crash report, but what's there obviously indicates memory management gone bad
02:49.15 brlcad switching to single precision more than likely just changes memory alignment so you just happen to avoid the crash, but the problem is still there -- just not provoking a crash (yet)
02:49.58 brlcad if you run valgrind, it will report all of the allocation problems (you should have a perfectly clean report except for one or two structures in librt
02:50.38 starseeker woot - got the hv3 browser up and running again. this time I'll try and work with it instead of gutting it :-)
02:50.49 brlcad the crash does shed light that the memory problem is not with brl-cad structures, but rather with some bullet or memory with one of your classes
02:50.57 brlcad yay
02:51.19 brlcad starseeker: be sure to bring an appetite.. there very well may be too much food
02:51.26 brlcad might have to send people home with some :)
02:51.29 starseeker hehe :-)
02:51.56 starseeker everything coming together OK?
02:52.26 brlcad as good as to be expected, it's a lot being coordinated
02:52.31 starseeker nods
02:53.01 starseeker hmm... actually, if this sucker works on Mac and Windows it could be a good "demo app" for the conference...
02:53.01 brlcad nothing fancy, nice and casual, but there are a lot of things coming together and everything was too short notice to get into as much detail as we would have liked
02:53.08 brlcad nods
02:53.46 starseeker the new venue worked out?
02:53.58 starseeker recalls concerns it might be too large...
03:47.21 brlcad yeah, it'll be just fine
03:51.36 brlcad not as neat as the boathouse, but in a really gorgeous garden area
03:51.57 brlcad though we'll be indoors where it's cooler and bug free ;)
06:04.21 *** join/#brlcad d_rossberg (~rossberg@BZ.BZFLAG.BZ)
07:04.42 *** join/#brlcad jordisayol (~jordisayo@unaffiliated/jordisayol)
08:33.12 *** join/#brlcad jordisayol (~jordisayo@unaffiliated/jordisayol)
10:10.17 abhi2011 a conference about to happen with lots of food I hear :)
10:22.00 *** join/#brlcad cvds (~leila@s537510ac.adsl.wanadoo.nl)
10:22.36 *** join/#brlcad abhi2011_ (~chatzilla@ip170-79-211-87.adsl2.static.versatel.nl)
10:31.14 cvds Hello, I ma just starting with brl-cad and was wondering if one could reuse regions in different combinations where the regions would be in a different position ?
13:18.11 *** join/#brlcad Yoshi47 (~jan@64.235.102.210)
14:02.15 brlcad cvds: absolutely
14:03.29 brlcad basically you apply a matrix transformation to a parent combination
14:03.44 brlcad see the oed tutorial/overview on the website for lots of examples and explanation
14:05.14 brlcad if you have /some/path/to/region and /some/path/another/region where you want 'region' to be in different places for the 'to' and 'another' combinations, you'd run oed
14:06.16 brlcad "oed /some/path/to region/down/towards/a/primitive" and "oed /some/path/another region/down/towards/a/primitive" would do the trick
14:22.07 *** join/#brlcad ibot (~ibot@rikers.org)
14:22.08 *** topic/#brlcad is BRL-CAD Open Source Solid Modeling || http://brlcad.org || http://sf.net/projects/brlcad || #brlcad logs: http://ibot.rikers.org/%23brlcad/ || BRL-CAD release 7.20.2 is posted (20110701) || BRL-CAD is participating in the ESA Summer of Code in Space!
14:26.08 cvds brlcad: thanks! I shall check that tutorial after I finished thise goblet. (ota is one "interesting" command to specify on the command line btw)
14:59.34 cvds now to find out why it wont render with rt ..
15:00.25 cvds and now it works ...
17:23.09 cvds It seems that I can not use the tra command to translate my solid using only the dz component (tra 0 0 0.5) Am I missing something ?
17:50.50 ``Erik solids don't have translation matrices associated yet, what about putting your solid in a comb/region/assmbly, doing the tra on that, then doing an xpush to modify the solid directly? (if I grok right, I might not)
18:04.00 *** join/#brlcad pacman87 (~Timothy@adsl-208-191-158-89.dsl.hstntx.swbell.net)
18:05.37 cvds ``Erik: I see.. odd tho, since I can use tra if I make all arguments non-zero, would that be a fluke ?
18:09.39 ``Erik I'm unqualified to say anything, there may be a bug :) I almost exclusively work in the low level C stuff and know nothing of the interface
18:15.31 cvds I see :) .. and darn this tutorial document is vast
18:30.39 ``Erik knowledgable people respond usually within ~24hr, so *shrug* ask and lurk :)
18:31.44 *** join/#brlcad merzo (~merzo@40-119-133-95.pool.ukrtel.net)
18:39.50 abhi2011 valgrind reports a lot of definitely lost memory for mged code
18:40.04 abhi2011 I mean the normal execution code, without invoking simulate
18:43.43 *** join/#brlcad n_reed (~molto_cre@BZ.BZFLAG.BZ)
19:08.16 abhi2011 hmm after calling rt_free_rti(rtip), there are still some blocks reachable : by 0x70BC003: rt_free_rti (prep.c:159), 512 bytes in 1 blocks are still reachable in loss record 3,106 of 3,598, assuming this can be ignored as its some rt related structures
19:16.25 cvds Riddle me this... according to the tutorial I should specify a command, but then I noticed that the result is different and it seems that I need to use the <v6.0 version of the command
19:17.13 cvds however a mged -version gives me a 7.18.4 which seems to contradict the fact that I need the pre6.0 version.
19:17.27 cvds command in question is inside
19:33.26 abhi2011 hmm thats strange I have got reasonably valgrind-clean code now barring a few functions which are related to librt which are producing reachable/definitely lost blocks, but switching bullet to double precision still causes a crash : http://bin.cakephp.org/view/1315005894
19:35.01 abhi2011 seems there are some invalid writes by Bullet code
20:17.24 starseeker cvds: there may be tutorial bugs
20:17.51 starseeker the pdfs on the website are quite old, unfortuantely
20:18.08 starseeker if you have specific issues, let us know and we'll try to clarify
20:39.40 cvds starseeker: at the moment its mainly some parameter ordering that seems to be inconsistent. Only "odd" thing was the tra command not working for input: 0 0 0.5 in solid edit mode (sed).
21:11.54 CIA-48 BRL-CAD: 03starseeker * r47162 10/brlcad/trunk/src/other/ (30 files in 12 dirs): Try to make the 8.5.9 tcl build logic look a little more like the latest 8.6b2 files.
21:12.43 *** join/#brlcad cvds_ (~leila@h111030.upc-h.chello.nl)
21:14.39 cvds_ Good night all. This client will stay open so I can check the answers in the morning.
21:29.45 CIA-48 BRL-CAD: 03n_reed * r47163 10/brlcad/trunk/src/other/step/src/ (4 files in 2 dirs): added new version of express.c with lemon parsing loop; building fedex_plus with lemon as well
22:19.41 CIA-48 BRL-CAD: 03starseeker * r47164 10/brlcad/trunk/src/other/ (95 files in 7 dirs):
22:19.41 CIA-48 BRL-CAD: Add the full hv3 browser to src/other - preliminary for switching from
22:19.41 CIA-48 BRL-CAD: special-purpose man and help viewers to customizations of the more powerful hv3
22:19.41 CIA-48 BRL-CAD: browser. Prompted by the css additions to the Docbook output, but may also
22:19.41 CIA-48 BRL-CAD: provide a text searching capability.
22:20.02 brlcad "ota" ?
22:22.14 starseeker ota?
22:22.20 brlcad cvds_: huh, tra 0 0 0.5 should have worked -- sounds like maybe a bug got introduced recently
22:22.36 brlcad 10:26 < cvds> brlcad: thanks! I shall check that tutorial after I finished thise goblet. (ota is one "interesting" command to specify on the command line btw)
22:22.46 starseeker ah, found it
22:22.51 brlcad don't know what ota is
22:23.07 starseeker nods
22:24.58 brlcad cvds_: you definitely don't need a pre6.0 version, but things certainly have changed a little since the tutorials were written so (very) minor changes (mostly syntactic) are to be expected -- some bugs in the documentation have already been fixed but we've not yet posted new versions of them onto the web (actively being worked on)
22:25.30 brlcad that said, could try the 'translate' command instead of tra -- slightly different parameters, I believe using absolute positions instead of relative
22:44.43 *** part/#brlcad n_reed (~molto_cre@BZ.BZFLAG.BZ)
23:05.50 *** join/#brlcad abhi2011 (~chatzilla@ip170-79-211-87.adsl2.static.versatel.nl)

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