irclog2html for #brlcad on 20061025

01:23.12 *** join/#brlcad SWPadnos_ (n=Me@dsl245.esjtvtli.sover.net)
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05:19.32 *** join/#brlcad clock_ (i=clock@84-72-62-233.dclient.hispeed.ch)
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07:00.22 clock_ Unfortunately the brlcad is completely unusable for an ocassional user
07:00.57 clock_ I used to know how to use it 1/2 year ago and now I am trying to use it again and I see I forgot all the elaborate definition
07:01.12 clock_ What's the difference between c, g, and r? Which ones permit overlapping and which not?
07:01.22 clock_ What is A,B,C,D,H, and V in a cylinder?
07:01.52 clock_ The help is also unusable:
07:01.56 clock_ mged> help c
07:01.56 clock_ Usage: c [-cr] comb_name [boolean_expr]
07:01.56 clock_ (create or extend a combination using standard notation)
07:02.19 clock_ Doesn't say what a combination is and what properties it has and what is not allowed with combination
07:02.34 clock_ THe same for g and r:mged> help r
07:02.34 clock_ Usage: r object(s)
07:02.34 clock_ (create or append objects to a region)
07:02.34 clock_ mged> help g
07:02.34 clock_ Usage: g gname object(s)
07:02.36 clock_ (create or append object(s) to a group)
07:05.01 clock_ The quick reference card PDF takes about 10 seconds to draw a page on 1500MHz CPU so it's rather a slow reference card than a quick reference card
07:26.20 clock_ Is it possible to place points in BRL-CAD and then reference them?
07:26.30 clock_ For example place points A, B, C, D into space and then say
07:26.38 clock_ "connect A and B with cylinder 6mm diameter"
07:26.57 clock_ and the same for A and C, A and D, B and C, B and D, C and D
08:02.31 brlcad clock_: per your earlier question, you can click in the graphics window to edit a value with the mouse
08:02.37 brlcad without typing in values
08:03.34 brlcad you select teh edit operation on the edit menu, then middle click in the graphics window using points above and below the center dot to increase/decrease values
08:04.47 brlcad main difference between c g and r is syntax, except r also marks the object as a region which has a specific meaning (creates a "part", or solid matter as opposed to just a shape)
08:05.38 clock_ brlcad: is it the content of the help stored in the source tarball?
08:07.29 brlcad what do you mean?
08:08.12 brlcad most of this stuff is covered by the intro to mged guide if that's what you mean
08:10.14 brlcad the help for those commands in mged is weak .. they need something like a manpage per command as it's not easy to quantify their use in one line
08:10.50 brlcad you really have to grasp the difference between groups/assemblies and regions/parts and combinations before it all makes sense
08:11.51 brlcad g creates a group with a simple syntax of just listing objects you want to add, g object a b c d e f will add a b c d e f to a group named object
08:12.35 brlcad which is a shorthand for creating a combination of only unions of a b c d e f, i.e. equivalent to c object a u b u c u d u e u f
08:13.49 brlcad r does effectively the same thing as g, and can use a similar syntax, but it marks "object" as a region which matters for things like overlaps
08:22.00 clock_ and c?
08:22.10 clock_ Can I edit the help and improve it?
08:22.25 clock_ Can I page and string search in the help output?
08:44.17 clock_ Is it possible to change the help and then send a patch?
10:45.32 clock_ brlcad: I need to draw a model of lattice truss made of tetrahedral units
10:45.47 clock_ The wire is 6mm thick and in some parts 10mm pipe with 1.5mm thick wall
10:45.51 clock_ How do I do this efficiently?
10:46.08 clock_ Only rotating one wire takes like 15 minutes to get it right
10:46.32 clock_ The best would be if I could click 2 points and say connect with wire
12:11.11 clock_ brlcad: ?
12:40.51 ``Erik heh, he probably went to sleep o.O
13:43.25 brlcad heh
13:43.59 brlcad clock_: of course you can edit the help and improve it!
13:44.15 brlcad for string search, there is already a command, 'apropos'
13:44.58 brlcad there isn't currently a pager, though as I mentioned, I have thought that it would be good to move to full blown manpages for the commands
13:46.36 ``Erik sleep, row, whatever, just layin' around being lazy... :D *duck*
13:47.28 clock_ brlcad: row on the water or on a rowing machine in a gym?
13:47.53 brlcad ``Erik: that's your mantra too?!
13:48.02 brlcad clock_: on water most days
13:48.10 ``Erik gettin' a bit cold to keep that up
13:48.11 clock_ must be cold and wet
13:48.12 brlcad though it is getting pretty freaking cold at 4am
13:48.16 clock_ watery grave ;-)
13:48.25 ``Erik about 34f ?
13:48.32 clock_ shy stirring water? You should generate electricity!
13:48.38 brlcad it was about 38 this morning without the wind
13:48.41 brlcad the wind is usually the killer
13:48.44 clock_ shy -> why
13:49.33 ``Erik no leather jacket, cap, and scarf while rowing? :}
13:49.35 brlcad I looked at getting one of those generator motors .. but building the contraption is something I don't quite have time to do right now :)
13:49.57 clock_ brlcad: you could support the weak national grid
13:50.40 brlcad not too weak around here, but yet ;)
13:50.51 ``Erik grids aren't quite national here, and the weakness is in wires being snapped or dug up, not overdrawn
13:51.52 clock_ brlcad: I made a new holder for ronja http://images.twibright.com/tns/1f25.html
13:52.28 clock_ I think it will be better to not try modeling it because it contains planes tangential to cylinder which I don't know how to make in BRL-CAD
13:52.52 clock_ Welding a prototype is more cost-effective option that trying to model it in brl-cad
13:55.02 clock_ jog?
13:55.20 clock_ jogging leads to hammered down knees
13:55.27 clock_ watching tv is the only safe activity
13:56.27 archivist na a lot of tv damages the brain
14:01.36 ``Erik I watch lots of tv and have no dain bramage
14:15.04 CIA-5 BRL-CAD: 03erikgreenwald * 10brlcad/src/librt/g_metaball.c: cope with a zero point metaball
15:41.24 CIA-5 BRL-CAD: 03erikgreenwald * 10brlcad/src/mged/edsol.c:
15:41.24 CIA-5 BRL-CAD: Metaball: Implemented add and delete pt. Improved keypoint display. Fixed
15:41.24 CIA-5 BRL-CAD: "second edit" crash.
15:43.03 clock_ bam drainage
16:07.02 brlcad cool
18:15.07 *** join/#brlcad jano (n=point@mailbox.nationalfranchisesales.com)
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18:35.55 ``Erik heh
19:26.42 ``Erik "I really thought the kids would get a big kick out of a scorpion filled pinata"
19:27.55 archivist Ive had a scorpion walk over my foot when I was a kid
21:20.21 Twingy I've been bopped!
21:48.16 *** join/#brlcad test34 (n=test34@unaffiliated/test34)
22:06.14 test34 I just installed brlcad and I created a primitive but it doesnt show up in the graphical window (I'm following VolumeII_Introduction_to_MGED.pdf).. any idea what could be wrong? (I tried to create a primitive from the command prompt and from the menus)
22:08.04 test34 If I type: l sph1.s, I get V 0 0 0 .. does that mean volume is 0 ?
22:11.46 test34 V (0, 0, 0)
22:24.03 test34 the rest of the tutorial displays correctly as I do it
22:24.10 test34 (ie the radio)
22:24.31 Twingy try another primitive
22:25.18 test34 hmm it works now.. maybe it was just out of sight?
22:25.49 Twingy or your clipping plane prevented you from seeing it
22:25.59 Twingy you can always turn clipping off under the menu
22:26.45 test34 ok thanks

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