IRC log for #brlcad on 20081218

01:33.18*** join/#brlcad Twingy (n=justin@74.92.144.217)
02:33.17*** join/#brlcad mafm_ (n=mafm@172.Red-83-45-253.dynamicIP.rima-tde.net)
02:39.54mafm_night
02:57.04starseekeris intrigued by the "DocuPen" scanner
03:05.48starseekercan't figure out if it can do 8xN scans where N > 11
03:24.52*** join/#brlcad PrezKennedyJR (i=Matthew@whitecalf.net)
03:37.47starseekerHmm, apparently the manufacturing quality sorta sucks
03:45.25starseekergrrr - this is insane
03:45.59starseekerHP creates one decent handheld 10 years ago, discontinues it, and I don't see a successor product except for this "DocuPen"
03:46.50starseekerbegins to suspect they don't want to hurt their $20000 wide format scanner markets by introducing something else that can viably scan them
04:02.32starseekermeh - even if the DocuPen were OK, it has no Linux support
04:25.09starseekerAh, thought so - old Mustek scanner was non feeder
04:31.01starseekerLogitech too
04:31.11starseekerastonishing everyone abandoned them
04:31.31starseekerwith optical mouse technology you could track where your scanner is relative to a large page
04:32.48starseekereyes Logitech Scanman but doubts he can get it hooked to a modern laptop
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05:46.09*** join/#brlcad WhiteCalf (i=WhiteCal@whitecalf.net)
06:49.19brlcadRalith: not really, lot of distractions tonight
06:50.25Ralithkk
07:31.15*** join/#brlcad SWPadnos (n=Me@dsl107.esjtvtli.sover.net)
09:42.22*** join/#brlcad mafm (n=mafm@172.Red-83-45-253.dynamicIP.rima-tde.net)
10:19.45*** join/#brlcad Ralith (n=ralith@216.162.199.202)
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10:40.25mafmhi
11:57.23d-lohai mafm!  hows the holidays/vacation going?
11:59.21mafmbusy packing/unpacking and working in my project
11:59.24mafmotherwise all right :)
11:59.29mafmand you?
12:07.44d-lobusy busy.  Family visiting soon, work deadlines, etc.
12:07.52d-lobut generally good.
12:15.27d-loget that new job lined up?  I can't remember if you said you had or not.
14:15.40mafmlining up
14:15.47mafmin fact I had to chose between two
14:16.00mafmmaybe I start in one and end up in another in a few months :)
14:16.12mafmbut yes, a bit of rest in the meantime :)
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15:51.04*** join/#brlcad Elrohir (n=kvirc@p5B14E7C7.dip.t-dialin.net)
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17:41.56d-lorather quiet today...
17:42.16brlcadeveryone is apparently busy coding
17:42.40brlcad(slaps knee)
17:42.45d-lowants what brlcad is on :D
17:43.55brlcadsqueals with glee as the bot wanders around cleaning
17:44.21d-lolol, so I take it you like it?
17:49.33brlcadyep :)
17:50.29brlcadonly issue thusfar is it having trouble getting onto a thick area rug I got, bumps into it like a wall unless it approaches from an angle
17:51.46brlcadnext project: attach a wireless webcam to it
17:52.09d-lonice :)
17:57.03d-lobrlcad: make a little ramp for the bot and see if it can understand a 'one-sided' wall :)
17:57.29brlcadit has a cliff sensor
17:57.41brlcadto prevent it from flying down stairs
17:58.12d-loso.... the ramp would be a 'door' and the area rug would be another 'room'..... neat :)
17:58.48brlcadah, you mean for getting past my problem?
17:58.52clock_brlcad: yeah with skateboard it's the same
17:59.28d-lobrlcad: yuppers.  I am curious about how adaptive a roomba is..
17:59.36clock_Is it equipped with AS (Artificial Stupidity)?
18:00.22brlcadd-lo: not really adaptive, you can tell it uses a fairly simple FSM
18:00.45brlcadwith the carpet, it actually hits a wall sensor on the front that presses a lever in
18:00.55brlcadbecause the carpet is about .5" thick
18:01.38brlcadso the stop is more mechanical -- if I can ramp it up slightly, it won't press the bar in
18:02.00brlcadbut doing that without looking like ass will be a little tricky
18:02.33d-loput 22"'s on it.  That should get the clearence :D
18:02.44d-loand it would look dope yo.
18:03.34d-loheh, someone has www.pimpmyroomba.com registered lol
18:04.06brlcadhttp://hackingroomba.com ;)
18:04.37brlcadooh, a roomba painter.. that could be fun in the basement
18:05.55clock_the Electrolux Trilobite is supposed to have more advanced algorithm with room mapping
18:07.13clock_The easiest way to create a robot that can map a room is... find a women and wait 9 months
18:07.43brlcadi'm pretty sure there's a step missing in there
18:07.44d-loclock_: You missed a critical step in that process that many many men have problems with :)
18:09.46clock_After computer geeks figure out how to make artificial intelligence in robots
18:09.55clock_I think the next step will be how to make social intelligence in geeks
18:11.01d-loheh, well, with a girlfriend-bot, i dunno how important that second step will be to geeks anymore :/
18:11.47clock_With a reprap inside to create babies
18:12.36d-loblinks.
18:12.51d-lookay.  this went Matrix quickly didn't it.
18:14.04d-lobah.  its 78 in Orlando :/
18:14.05clock_I wonder where homosexuality comes from
18:14.12d-lois mildly jealous.
18:14.19clock_Meybe it's a forgotten debug testing routine from the development
18:14.25d-lonow there's a topic I won't touch.
18:14.57brlcadclock_: san francisco so I've heard
18:15.04d-lolol
18:15.25clock_brlcad: :D
19:05.17*** join/#brlcad jonored (n=jonored@LAZARUS2.WIFI.WPI.EDU)
19:46.46DanielFalckbrlcad: could you point me to some documentation on how to use the sketch and extrude commands?  the wiki just shows a little info on get and put
19:47.15DanielFalckI'm learning the basics of mged and the manual seems to show these commands as experimental
19:54.38brlcadDanielFalck: they sort of are in a way just because the editing interfaces on sketches is rather poor
19:56.31brlcadthey're also often generally just not a favored modeling practice since it's based around the traditional 2D approach
19:58.11brlcadprobably easier is to see an example, http://brlcad.org/tmp/sketch.g
19:58.23brlcadthere is one sketch and one extrude in that file
19:59.24brlcadif you edit that existing sketch, you should see the sketch editor where you can make edits and see how it affects the resulting shape
20:02.32DanielFalckwhat I plan on doing is converting shapes in a dxf file in sketched shapes and extrude them
20:02.50DanielFalckinto
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20:05.41DanielFalckthanks
20:05.53brlcadso you run dxf-g, it should create a sketch for you if it's a 2D entity we recognize
20:06.25brlcadthen you create an extrude that uses it, the "in" command is probably the easiest to start with (just type "in", it's interactive)
20:07.53DanielFalckgreat
20:08.18DanielFalckV =vertex
20:08.21DanielFalckH= height
20:08.34DanielFalckA =?
20:08.39DanielFalckB = ?
20:08.56DanielFalckK = ?
20:09.10DanielFalckI see u_dir, v_dir when listing
20:09.53brlcadk is unused, ignore it
20:10.12brlcada and b are orientation scaling vectors
20:10.22DanielFalckok, thanks
20:10.54brlcadusually easiest to just make them 0 1 0  and 1 0 0  so that the sketch is just oriented in the x/y plane
20:11.09brlcadwhere 1 is whatever scaling factor size you want to make it
20:11.22DanielFalckhow can I skip K - when I hit enter it persists
20:11.31brlcad0
20:11.33brlcad1
20:11.35brlcadwhatever
20:11.39DanielFalckok
20:11.46DanielFalckthat worked
20:11.47DanielFalckthanks
20:13.15DanielFalckso in theory, I should be able to use brlcad in batch mode with my own scripts and convert a friendly dxf file to a sketch, extrude it, do whatever operations I need to, then export to my other applications
20:13.34DanielFalckthis will be very helpful
20:13.39DanielFalckthank you
20:16.46DanielFalckhttp://imagebin.org/33941
20:21.10CIA-6BRL-CAD: 03brlcad * r33401 10/brlcad/trunk/ (5 files in 5 dirs):
20:21.10CIA-6BRL-CAD: this has come up several times in the past. remove the 'in' command prompting
20:21.10CIA-6BRL-CAD: for a seemingly mysterious 'k' option. the option was for a keypoint parameter
20:21.10CIA-6BRL-CAD: that was never utilized. since this is technically an experimental primitive,
20:21.11CIA-6BRL-CAD: it doesn't need to go through deprecation but it probably should still be stored
20:21.13CIA-6BRL-CAD: in the .g since it's been around for so long.
20:23.31CIA-6BRL-CAD: 03brlcad * r33402 10/brlcad/trunk/TODO: someone(tm) should clean up extrude dbio when we break proto for v6
20:23.45brlcadDanielFalck: yeah, that's the basic idea that should work
20:24.04brlcadmind you, the dxf->sketch path isn't heavily tested -- let me know how that works out
20:24.49DanielFalckok, will do
20:26.11brlcadDanielFalck: that's a really curious image -- did you modify the sketch.g I gave you or something?
20:27.04brlcadit's the right shape, but it's extruded too much
20:27.51DanielFalckbrlcad: I typed in 0 1 0 and 1 0 0 for a and b
20:28.07brlcadahh, you recreated the extrude
20:28.12DanielFalckand I extruded it myself
20:28.21brlcadgotcha
20:28.24DanielFalck<PROTECTED>
20:28.57brlcadjust making sure the extrude didn't export to stl/dxf/whatever with a bad vertical scaling or something.. :)
20:30.53DanielFalckI would like to model screw threads at some point.  Is that something that I should try to do with brlcad (after I learn more)?
20:31.35DanielFalckwith a lot of rotating/translating
20:37.01brlcadclock actually has some nice threaded bolts that he scripted a while back
20:37.15DanielFalckcool
20:37.46brlcadtook forever to raytrace and even longer to tessellate to a polygonal format, but it actually worked
20:38.04DanielFalckI don't see him here. does he show up here much?
20:38.48brlcad~seen clock_
20:38.50ibotclock_ <n=clock@84-72-91-240.dclient.hispeed.ch> was last seen on IRC in channel #brlcad, 2h 23m 25s ago, saying: 'brlcad: :D'.
20:39.07DanielFalckok thanks
20:39.24DanielFalckI'll watch for him
20:39.42brlcadhe's usually here, probably went to take a nap
20:43.23brlcadugh, it's on one horribly asslow net connection, but you can see pics of it here:  http://ronja.twibright.com/3d/hardware_4.png
20:43.41DanielFalcknice
20:44.04brlcad[1-6] are other images
20:45.01brlcadbasically tranlated torus at an angle makes a nice cutout
20:46.55DanielFalckthanks. I found the source file
20:49.37DanielFalckvery nice
20:58.55DanielFalckhe used a truncated general cone
21:01.26brlcadah, I vaguely remember that
21:01.42brlcadused a constructive approach instead of carving/subtracting
21:02.25DanielFalckso, I plan on using the bash terminal more than anything and I'm getting along pretty well using mged in -c mode
21:02.37DanielFalckI can list out his components pretty easily
21:02.42brlcadone of the best features of mged ;)
21:02.53DanielFalckwith a "mged -c hardware.g l hex6_3_6.9.s"
21:03.16DanielFalckI was reading your SGI script
21:03.21DanielFalckpretty nice stuff
21:03.36brlcadi even use that for interactive stuff, but the downside is you don't get tab-completion
21:04.05brlcadtried to show several of the scripting methods in there
21:04.37DanielFalckI'm not a bash scripter, but I am starting to understand a little of it
21:04.52DanielFalckI mostly just play with it
21:05.05brlcadsh scripting is pretty simple
21:05.10brlcadthere's so much you can't do ;)
21:05.24brlcadso it confines you to just a few basic syntactic structures
21:05.32DanielFalckI'm a CAD jockey at work.  I play with python at home
21:05.59DanielFalckso I'm just getting dangerous : )
21:06.16DanielFalck"erase your harddrive in 5 easy steps " : )
21:06.55brlcadhm, I should have renamed i and j "long" and "short" or something
21:07.09brlcad5 easy steps??
21:07.11brlcadit only takes one :)
21:07.19DanielFalckthat's true
21:07.23DanielFalckone command
21:08.12brlcadsudo rm -rf / or sudo cat /dev/random > /dev/hda1 come to mind ;)
21:08.24brlcador "fdisk"
21:08.38jonoredAny particular reason mged -c doesn't get tab completion? (I've probably asked before...)
21:09.29brlcadjonored: mged -c should have tab completion
21:09.43brlcadrunning mged -c file.g some_command doesn't .. because mged isn't running
21:10.06DanielFalckyou just can't tab complete something inside it
21:10.16jonored...Right. Apparently it's just my install being broken.
21:10.38DanielFalckwhat are you typing in exactly?
21:10.38brlcadjonored: ehm, what version?
21:13.02jonoredI was probably remembering something from a previous install that had other glitches anyways. It works now...
21:17.40jonored7.14.0 and it works fine... although is tesselation of pipes supposed to be working?
21:19.20jonoredg-stl sort of thing?
21:27.28brlcadyes, pipes should tessellate
21:28.03brlcadtessellation in general is a bit of a hard problem, though -- it's not robust depending on the numerics
21:33.19jonored*nod*. Would self-intersection be likely to break things? mged is actually crashing when I try to do E on this object, but I also don't trust that I've got a functional install - I'm building it through an ebuild I don't entirely trust not to mess things up.
21:48.15*** join/#brlcad Axman6 (n=Axman6@pdpc/supporter/student/Axman6)
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22:01.37DanielFalckbrlcad: could you give me a lesson on how to import a sketch into a *.g file using the mged -c classic mode ? thanks
22:01.51DanielFalckor even in mged graphical mode
22:07.15brlcadDanielFalck: yeah, but I'm right about to head out the door, have to be probably later today or tomorrow
22:07.25DanielFalckok no problem
22:07.34DanielFalckI'll study the wiki more
22:08.04brlcadyou can play with importing a sketch using that .g I gave you
22:08.11DanielFalckok thanks
22:08.12brlcadrun mged -c sketch.g get sketch
22:08.19DanielFalckok
22:08.21brlcadthen reverse that with put
22:08.29brlcadbit of reverse-engineering
22:08.31DanielFalckthanks
22:08.42brlcadbut basically there are codes for each segment type for the sketch and their values
22:09.54brlcadjonored: certainly shouldn't but possibly could
22:10.09brlcadcrashing during E is a problem that should be happening
22:10.21brlcader, shouldn't :)
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23:46.10PrezKennedyunplugs Axman6's connection
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