IRC log for #brlcad on 20090322

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10:57.22 csanyipal Howdy
11:03.55 csanyipal Still I can't to install brlcad on to my Debian Lenny system using SVN.
11:04.47 csanyipal I have installed now libx11-dev but get another error message:
11:05.04 csanyipal <PROTECTED>
11:05.10 csanyipal make[2]: *** [btclsh] Error 1
11:05.14 csanyipal etc.
11:05.39 csanyipal What package should I install to solve this problem?
12:27.42 louipc csanyipal: it might be helpful to see some of the previous lines of build output.
13:16.14 madant csanyipal, and most probably the btclsh error can be fixed by using --enable-all during the configure
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13:48.12 brahim Hi
13:48.29 brahim Is there any mentor that can answer my questions?
14:02.26 *** part/#brlcad brahim (n=brahim@79.89.68.173)
14:06.08 hippieindamakin8 hey madant
14:37.19 madant hey hippieindamakin8 :)
14:37.31 madant couldn't listen to riverside will check out now ;)
14:44.51 hippieindamakin8 been trying to talk to brlcad (sean) or smbody abt the boundary evaluation problem
14:48.02 hippieindamakin8 madant, http://www.youtube.com/watch?v=uItqFhe56Rw&feature=related this is a good song
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15:26.38 csanyipal loupic, madant: here is the output of the error after I have configured with --enable-all and did make:
15:26.42 csanyipal /home/csanyipal/CAD/BRL-CAD/Letoltese/SVN/brlcad/src/libdm/.libs/libdm.so: undefined reference to `XFreeDeviceList'
15:26.53 csanyipal /home/csanyipal/CAD/BRL-CAD/Letoltese/SVN/brlcad/src/libdm/.libs/libdm.so: undefined reference to `XOpenDevice'
15:27.01 csanyipal /home/csanyipal/CAD/BRL-CAD/Letoltese/SVN/brlcad/src/libdm/.libs/libdm.so: undefined reference to `XSelectExtensionEvent'
15:27.08 csanyipal /home/csanyipal/CAD/BRL-CAD/Letoltese/SVN/brlcad/src/libdm/.libs/libdm.so: undefined reference to `XListInputDevices'
15:27.16 csanyipal collect2: ld returned 1 exit status
15:27.21 ``Erik it's not seeing all the X libs correctly
15:27.29 csanyipal make[2]: *** [btclsh] Error 1
15:27.46 csanyipal make[2]: Leaving directory `/debian-adatok-1/CAD/BRL-CAD/Letoltese/SVN/brlcad/src/bwish'
15:27.59 ``Erik also; pleased to be using http://pastebin.bzflag.bz for those
15:28.11 csanyipal make[1]: *** [all-recursive] Error 1
15:28.26 ``Erik iirc, BRL-CAD requires both Xlib and Xi
15:28.36 csanyipal make[1]: Leaving directory `/debian-adatok-1/CAD/BRL-CAD/Letoltese/SVN/brlcad/src'
15:28.40 ``Erik yes, those all look like Xi commands
15:28.45 ``Erik libXi and libXi-dev
15:28.48 csanyipal make: *** [all-recursive] Error 1
15:29.01 csanyipal Erik: OK a'll try that
15:32.18 ``Erik continues whining about losing access to the debian box he used to have :/
15:43.15 ``Erik I don't think you'll need to rebuild your libdm.la, so you MIGHT be able to "cd src/bwish && make" to test
15:43.25 ``Erik but I'm not sure
15:51.05 piksi brlcad: ok, regarding the cooperation(?) in developing bim-like features suitable for architecture in brl-cad, who should i contact in the brl development team? is there a mailing list or some other official channel for such? I'm propably getting financial support from http://www.atl.fi/index.php?id=182
16:09.56 ``Erik chatting in channel or sending to brlcad-devel@ would be appropriate
16:09.58 ``Erik "bim"?
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16:38.25 madant is stupid enough to have made gymnastic rings :P http://www.instructables.com/id/How_to_make_GymnasticsFitness_Rings_from_PVC_Cond/
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17:26.55 kanzure_ madant_: heh, I've been thinking about a way to export assemblies of CAD files to instructables (or an equivalent) .. such that the instructions are automatically generated. Maybe a potential BRLCAD project.
17:28.50 madant_ hey kanzure,
17:29.16 kanzure_ I'll get back to the emails later today. I'm a bit on the run at the moment.
17:29.42 madant_ aah.. u mean like a record option ? which automatically records the steps and generates the instructions in human readable form
17:30.04 kanzure_ yes
17:30.14 kanzure_ what do you mean by 'record'?
17:31.02 kanzure_ I have some links on this topic, actually. http://groups.google.com/group/openmanufacturing/msg/e6479685816e9590
17:31.07 madant_ just a sec :)
17:31.29 kanzure_ http://groups.google.com/group/diybio/msg/a5b583afade64278
17:31.36 kanzure_ ^ that second link is a better one.
17:32.01 kanzure_ in particular it was spawned by the recent 'sudo make me a sandwich' robot, and some further extrapolated discussion
17:34.44 kanzure_ "From this design, I created a python script that creates GCode instructions for building the various kebabs. The GCode consists mainly of two parts: instructions that prompt the user to do things: thread a nut on the rod, slide on kebab parts (diagonal ties, washers, etc) and actual instructions that cause the rod to rotate a nut to exactly the right position. The end result is pretty slick: it generates a wizard that serves as both a g
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17:36.12 kanzure_ Of course, there's probably a few better ways than gcode to accomplish an "instruction wizard" for CAD assemblies. ;-)
17:38.44 hippieindamakin8 hey ``Erik_
18:08.47 madant_ kanzure: i meant say a button record :) which in a sense analyzes all ur following steps and generates the corresponding instructions :D
18:10.29 madant_ hippieindamakin8, boundary evaluation problem ?
18:11.14 hippieindamakin8 yeah madant_
18:11.55 hippieindamakin8 madant_, so u applying this year as a student again?
18:12.20 madant_ yes :)
18:13.18 hippieindamakin8 madant_, u must also be graduating this year eh ? :)
18:13.49 madant_ i finished my graduation last year . I will be joining a new program this year :)
18:13.58 madant_ took a 1 year sabbatical in between :)
18:14.12 hippieindamakin8 dude wish i could do that :|
18:14.17 madant_ what about hippieindamakin8 what are u upto ;) ?
18:14.46 hippieindamakin8 my parents were strictly against it when i told them that i would take a sabatical for an year :|
18:15.05 hippieindamakin8 dude applied here last year couldnt get through :D so apping again
18:15.07 madant_ hmm.. yeah understanding parents are hard to come by ;)
18:15.36 hippieindamakin8 madant_, u used a different nick last year dint u ?
18:15.49 madant_ my commit nick is homovulgaris :P
18:16.00 hippieindamakin8 exactly :)
18:16.06 madant_ which means common man.. but doesnt sound very nice i guess :D
18:16.11 hippieindamakin8 so i know :P
18:16.20 hippieindamakin8 and u are joining a grad school or wat ?
18:16.33 madant_ Who is Mad Ant ? is an anagram of " I, Dawn Thomas"
18:16.59 hippieindamakin8 like that one of lord voldemort :P
18:17.23 madant_ is not very well versed with Harry Potter etc.
18:17.43 madant_ lord voldemort is the anagram of something right ?
18:17.44 hippieindamakin8 hehe .. good neways it was a lame series towards the end
18:17.56 madant_ oh the series is over ?
18:18.12 hippieindamakin8 yeah his actual name. TOM <smthing> <smthing> Riddle
18:18.13 hippieindamakin8 madant_, yeah.
18:18.35 madant_ hippieindamakin8, i have a boundary evaluation trouble in libpc :)
18:18.38 hippieindamakin8 neways back to the problem i was interested in
18:19.26 hippieindamakin8 goes through the source to get into the libpc folder.
18:19.32 hippieindamakin8 madant_, tell me
18:20.08 madant_ it is about the solver.. while doing the iterations
18:20.24 madant_ right now it stores the state of the variables and restores it as a temporary fix :)
18:21.15 hippieindamakin8 is going through the pcsolver.cpp
18:21.39 madant_ the actual trouble is , if in a list of variables in a constraint network, the first or second variable has the lowest in its domain , it somehow doesn't iterate properly
18:22.03 madant_ i mean the trouble is not in pcSolver per se.. must be somewhere in pcVariable*
18:22.22 hippieindamakin8 ohk. as in let me understand how this is solving it :|
18:22.42 madant_ :)
18:23.35 hippieindamakin8 madant_, so u have written this lib or wat ?
18:23.50 madant_ yep
18:25.18 madant_ hippieindamakin8, sorry, were u asking me to explain the process of solving ?
18:25.27 hippieindamakin8 madant_, no :)
18:25.41 hippieindamakin8 i am trying to read up the developer doc
18:26.20 hippieindamakin8 madant_, i shall get back to u in sometime (shall be going through the doc)
18:28.33 madant_ np.. the generic solvers are simple.. it takes the list of all variables, assign a value for each variable in the set, check if the constraints are satisfied , if so adds to the solution, otherwise iterates the variable values continues the process
18:32.49 hippieindamakin8 madant_, isnt it libpc that is wat takes care of the p&c .the wiki i guess needs an edit (i am talking abt the proposal /developer doc )
18:34.55 madant_ the developer doc on libpc needs to be updated on a lot of aspects, particularly pcMath* and so on..
18:35.05 madant_ will be doing it before this month end
18:35.38 madant_ oh u mean the change from pg to pc .. ah well.. that is there :)
18:36.13 hippieindamakin8 madant_, and the doc is very vague :)
18:36.41 madant_ yeah it is from the very primitive stage :)
18:37.52 madant_ the effective spectrum of parametrics and constraints is pretty large .. :) in fact you have given me a good thought.. i will devote the next few days to making a proper document.. :)
18:37.55 hippieindamakin8 madant_, looks like you use c++ builder :)
18:38.08 madant_ er ? c++ builder ?
18:38.25 hippieindamakin8 i saw this file which includes a .hpp
18:39.47 madant_ not sure what u are talking about .. maybe the boost libs ?
18:39.58 hippieindamakin8 yeah
18:40.17 hippieindamakin8 boost/iterator/.............
18:41.15 madant_ ah hippieindamakin8 u meant c++ builder environment ? naah :)
18:41.33 madant_ i don't even have access to windows :) gcc and vim :)
18:41.36 hippieindamakin8 madant_, yeah borland's .. neways leave that
18:42.14 hippieindamakin8 hi5 -es madant_
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18:56.09 brlcad yawns
18:56.45 hippieindamakin8 hey brlcad
18:57.08 hippieindamakin8 brlcad, how are u?
19:20.31 brlcad howdy hippieindamakin8
19:21.21 hippieindamakin8 brlcad, hey i wanted to talk to you abt the boundary evaluation problem
19:32.00 brlcad is still waiting
19:34.33 hippieindamakin8 brlcad, sorry i was going through the implementation :|
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19:35.23 brlcad np :)
19:35.35 brlcad irc isnt immediate
19:36.02 hippieindamakin8 :)
19:36.06 hippieindamakin8 thanks
19:43.07 madant_ hippieindamakin8, just so that i am not confused :D the boundary evaluation problem you are talking about is not the libpc one right :D
19:43.23 hippieindamakin8 brlcad, right now as i see/(as mentioned on the wiki) entire operations are done in brep and then converted to csg for display
19:43.38 hippieindamakin8 madant_, yeah but just wanted to check if i could do smthing there :)
19:44.45 madant_ ah sorry, if you saw the boundary evaluation problem trouble somewhere on the site etc. it could mean something else , brlcad would know..
19:45.38 hippieindamakin8 madant_, i was a bit confused as well but neways :)
19:46.03 hippieindamakin8 madant_, i still dint get what you meant by the <if iteration 1 and iteration 2 have same values ..... >
19:46.17 madant_ i said that ? :O
19:46.55 hippieindamakin8 wait you said if they are lowest in the domain :| (and not same)
19:47.57 madant_ hippieindamakin8, i mean the trouble happens if in a particular iteration the first variable has the lowest value or something , the following iterations only keep taking into consideration the other variables.. resulting in a loop.. :D and weirdly this happens only if this lowest value in the domain thing happens as the initial state :D
19:48.05 madant_ blah.. that was more confusing i suppose :D
19:55.55 CIA-40 BRL-CAD: 0393.2.152.157 07http://brlcad.org * r1287 10/wiki/Google_Summer_of_Code/Project_Ideas: /* New geometry converter */
19:58.18 CIA-40 BRL-CAD: 03Sean 07http://brlcad.org * r1288 10/wiki/Google_Summer_of_Code/Project_Ideas: Undo revision 1287 by [[Special:Contributions/93.2.152.157|93.2.152.157]] ([[User talk:93.2.152.157|Talk]]) plenty other more interesting and useful converters for a gsoc project than this
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20:07.09 brlcad if someone here made that mod and wants to discuss, speak up
20:07.47 csanyipal howdy
20:07.52 brlcad howdy csanyipal
20:07.53 madant_ howdy csanyipal
20:07.57 madant_ yikes :)
20:08.10 madant_ csanyipal, did the build work ?
20:08.18 csanyipal no, sorry
20:08.32 hippieindamakin8 brlcad, madant_ can u direct me to the code which contains the brep manipulations
20:08.45 madant_ did u install the libXi ?
20:09.08 csanyipal I did: sudo aptitude install libxi6 libxi-dev
20:09.29 madant_ whats the error now ? :)
20:09.41 csanyipal wait a little..
20:11.48 csanyipal I must now to run again make to get error message..
20:20.04 hippieindamakin8 brlcad, the project basically involves optimized conversion of csgs to breps and brep manipulation.
20:22.10 hippieindamakin8 runs out to get a quick bit before the cafeteria closes (that is in 10 mins)
20:28.22 brlcad hippieindamakin8: have you tried looking yet? :)
20:29.13 brlcad if you haven't tried, you shouldn't be asking -- if you have, then I'd like to hear what you've found out
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20:41.47 csanyipal madant: It's my mistake, now, when I try again to build the brlcad from svn, it's successfully installed.
20:42.04 csanyipal Done.
20:42.16 csanyipal BRL-CAD Release 7.14.5, Build 20090322
20:56.08 csanyipal madant: mged works. Thanks! :)
20:56.42 csanyipal madant_: mged works, thanks!
20:57.40 brlcad cool
20:57.45 brlcad ~madant++
20:58.15 kanzure madant__: ah, well. Maybe that's the same thing.
21:02.14 hippieindamakin8 brlcad, going through the folder mged rt now
21:04.24 hippieindamakin8 checks the code in mged/sedit.h
21:06.56 brlcad hippieindamakin8: you should always look *before* asking .. :)
21:07.42 hippieindamakin8 brlcad, i reached/checked that before asking too .
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21:08.05 hippieindamakin8 its taking me a bit more of time to understnd the macros
21:10.02 csanyipal by for now!
21:11.16 hippieindamakin8 brlcad, i shall go through the exisiting code and the way the implementation is done and i shall get back to u on 23rd morning (w.r.t the east coast time)
21:11.25 hippieindamakin8 with a proposal
21:11.33 brlcad okay
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