| 00:03.36 | *** join/#brlcad Twingy (n=justin@74.92.144.217) |
| 01:17.18 | CIA-4 | BRL-CAD: 03brlcad * 10brlcad/src/rt/viewcheck.c: quell more compilation warnings, thx IriX64 |
| 01:38.29 | *** join/#brlcad poolio (n=poolio@c-69-251-3-107.hsd1.md.comcast.net) |
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| 06:19.37 | MinuteElectron | brlcad: Any luck? |
| 06:20.12 | brlcad | MinuteElectron: hm? |
| 06:20.34 | brlcad | oh, /d, right |
| 06:22.54 | MinuteElectron | yeah |
| 06:23.14 | MinuteElectron | Also /w |
| 06:37.50 | MinuteElectron | I have to go, bbl. |
| 06:43.25 | brlcad | should be fixed now |
| 06:43.36 | brlcad | that directory index was screwing up their index |
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| 07:42.07 | *** part/#brlcad akreal (n=ak@ll-81-222-164-251.awanti.ru) |
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| 12:47.44 | poolio | mornin |
| 13:08.21 | brlcad | howdy |
| 13:11.26 | poolio | hopefully today will be more productive than the last |
| 13:15.41 | AchiestDragon | hi |
| 13:20.07 | poolio | brlcad: do Ineed to worry about backwards compatibility? |
| 13:34.36 | poolio | brlcad: also, if I call rt_db_put_internal on a combination, will all elements of that combination be copied or do I need to copy those by hand? |
| 13:35.32 | brlcad | backwards compatibility with what? |
| 13:35.44 | poolio | brlcad: previous database versions |
| 13:35.54 | brlcad | oh, you mean v4 |
| 13:35.57 | poolio | yeah |
| 13:35.59 | brlcad | no, screw that |
| 13:36.03 | poolio | hurrah |
| 13:36.03 | poolio | also |
| 13:36.34 | brlcad | as for rt_db_put_internal .. that writes out one object |
| 13:36.39 | poolio | if I want to insert an internal db object from one database into another, do I call rt_db_put_internal with the db_i and directory of the database I want it to be inserted into and the internal object of the object I want insreted? |
| 13:36.41 | brlcad | one node of the hiearchy |
| 13:36.56 | poolio | brlcad: well, it writes out the combination right? |
| 13:37.01 | brlcad | right |
| 13:37.20 | brlcad | but a combination is a name, and references to a handful of objects with operators |
| 13:37.21 | poolio | is the right to the inserting an object or that it's a combination? |
| 13:37.39 | poolio | brlcad: Alright, so I just need to throw in a db_walk routine that will copy over each solid? |
| 13:37.57 | brlcad | if the other db doesn't have the objects below that hierarchy, yes |
| 13:38.48 | poolio | and what about carrying internal objects between different databases? |
| 13:39.17 | brlcad | e.g. consider the simple tree A1 -> B1 u C1 B1 -> D1 u E1 C1, D1, & E1 are all prims |
| 13:39.36 | poolio | brlcad: Yes I understand all that |
| 13:40.11 | poolio | and B1 would also have to be copied? |
| 13:40.14 | brlcad | if you swap out B1 with a new B2 that looks like B2 -> F2 u A1 .. you'd have to also write out F2 separately but not A1 |
| 13:40.22 | poolio | yep |
| 13:43.17 | brlcad | so yeah, you'll want to do a db_functree on the hierarchy, seeing if you need to copy over any of the nodes |
| 13:43.27 | brlcad | subhierarchy |
| 13:51.47 | poolio | alright |
| 14:22.23 | MinuteElectron | brlcad: Thanks. |
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| 14:46.26 | *** join/#brlcad TME (n=tmdelell@angmar.ornl.gov) |
| 14:46.53 | TME | brlcad: TME here again, got things basically working, I have two questions: |
| 14:47.17 | TME | 1) what are the differences between regions and combinations |
| 14:47.51 | TME | (It seems that combinations are a superset of regions, ie a region is a combination) is this correct? |
| 14:48.30 | TME | 2) I have to do point queries, ie find a cell (region) given (x,y,z) I am doing this with shootray and ap.a_onehit = 1 |
| 14:48.36 | TME | Is this the best way? |
| 14:49.12 | TME | Thanks for any help. If you want (or care ;)) I can send you my C++ class that does these basic tasks using brlcad |
| 14:49.51 | TME | So far, the software is working great, I'm just not sure if I am implementing things in the optimal way |
| 14:50.16 | TME | However, this is a prototype proof-of-principle task, so we should be able to provide some resources for you to look things |
| 14:50.27 | TME | over if everything goes through all right |
| 15:21.30 | poolio | brlcad: is there a way to rename a shape without changing it's name in a tree using that shape? |
| 16:46.39 | *** join/#brlcad mec_guy (n=chatzill@59.95.35.161) |
| 16:47.08 | mec_guy | hello world |
| 16:48.20 | mec_guy | does anybody know of a chat room 4 mech engg and also d server |
| 17:14.46 | archivist | try full english words so we can direct you |
| 17:22.59 | mec_guy | can you tell me of ca channel for Mechanical Engineers and I-DEAS users and also the server on which it is hosted? |
| 17:24.29 | archivist | this chan has a few mechanical engineers and so does #emc also on freenode |
| 17:25.01 | brlcad | TME: yes, regions are a subset of combinations |
| 17:25.12 | brlcad | code-wise, they're just a flag set on regions |
| 17:25.23 | *** join/#brlcad IriX64 (n=mario_du@bas2-sudbury98-1177879018.dsl.bell.ca) |
| 17:25.27 | brlcad | bah I mean code-wise, they're just a flag set on combinations that makes them a region |
| 17:26.06 | brlcad | what that means in practice though, by making a region, is that the entire hierarchy below is a given material |
| 17:26.57 | brlcad | that's where it goes from being just a "collection" or "shape" to being actually solid material with interaction properties, issues with overlaps and effects on the shotline returned |
| 17:27.59 | TME | brlcad: I noticed that db_flags = 6 for regions, is it the same for combinations? |
| 17:29.04 | brlcad | if you walk the DAG (directed acyclic graph) for the CSG hierarchy, there should be one and only one region along any traversal down the hierarchy used as a positive shape (i.e. a union, it's okay to have other regions underneath that are subtracted) |
| 17:29.56 | brlcad | in CAD parlance, regions loosely correlate with parts, combinations/groups above the region level would generally be called assemblies |
| 17:33.58 | brlcad | TME: db_flags? |
| 17:34.11 | brlcad | oh, you mean like db_get_internal_flags()? |
| 17:34.27 | brlcad | no, not the smae |
| 17:34.32 | brlcad | that's a bitmask |
| 17:34.49 | brlcad | see raytrace.h, look for DIR_COMB |
| 17:35.00 | brlcad | regions are DIR_COMB | DIR_REGION |
| 17:35.09 | brlcad | combinations are just DIR_COMB (i.e. 2) |
| 17:35.31 | Laniakea | brlcad: is it possible to design architecture in BRL-CAD? |
| 17:35.56 | brlcad | should use the symbolic instead of the number too, even though it likely wouldn't change unless the major number changed (release 8.*) |
| 17:36.11 | brlcad | Laniakea: sure it's possible |
| 17:36.20 | brlcad | depends on the type of building and the design purpose |
| 17:36.48 | Laniakea | brlcad: how do I place say 19 cylindrical pillars into a ring? |
| 17:37.07 | Laniakea | in a ring |
| 17:37.18 | brlcad | pattern tool |
| 17:37.21 | brlcad | Tools menu |
| 17:37.23 | Laniakea | good |
| 17:37.32 | brlcad | there's a tab for cylindrical |
| 17:38.15 | TME | brlcad: sorry I meant d_flags (a member of struct directory) |
| 17:38.16 | Laniakea | brlcad: "Build pattern tool"? |
| 17:38.18 | brlcad | i'm not sure I'd want to design a building from scratch with brl-cad, but if you have an existing design in mind or floor plans, or a physical building, it's usually straightforward |
| 17:38.23 | brlcad | Laniakea: yeah |
| 17:38.49 | brlcad | TME: yeah, the same holds then |
| 17:38.59 | mec_guy | How does BRL-CAD compare with I-DEAS or Catia? |
| 17:39.27 | Laniakea | brlcad: not very intuitive menu |
| 17:39.52 | Laniakea | brlcad: Base Center it's probably x y z but it could be stated explicitly |
| 17:39.58 | Laniakea | (like it's not x,y,z) |
| 17:40.09 | brlcad | want to fix it? :) |
| 17:40.11 | Laniakea | Not explained the difference between object and base |
| 17:40.24 | Laniakea | Angles in radians or degrees? |
| 17:40.34 | Laniakea | Function of source and replacement string |
| 17:40.34 | brlcad | I believe they are in degrees |
| 17:40.50 | Laniakea | What "Starting Height |
| 17:40.51 | TME | brlcad: see http://pastebin.ca/601708 for what I'm trying to do |
| 17:40.53 | Laniakea | " means |
| 17:40.59 | Laniakea | is it height of something or height as position? |
| 17:41.07 | Laniakea | Heights? What's that? |
| 17:41.12 | Laniakea | Lists? What lists? |
| 17:41.25 | brlcad | the pattern tool was a quick hack, I take no claim or responsibility, but it does work once you learn it (and it's covered/explained in the advanced tutorial) |
| 17:41.39 | Laniakea | is the advanced tutorial online? |
| 17:41.48 | brlcad | yep, vol III or IV iirc |
| 17:41.50 | brlcad | on the main website |
| 17:41.57 | TME | I want to walk the directory and load all of the regions usin grt_gettree |
| 17:42.01 | Laniakea | Like it's not necessary to put help into the window but the labels should contain some self-explanatory hints |
| 17:42.21 | Laniakea | you need to get some person who has no idea about BRL-CAD give it MGED and ask where he has no idea |
| 17:42.21 | brlcad | Laniakea: it's a cylinder pattern, so if you just want one level, the height is something small enough so it only iterates once |
| 17:42.24 | Laniakea | and then add the missing clues |
| 17:42.37 | Laniakea | Developers are generally clueless about usability since they know everything by heart |
| 17:42.44 | Laniakea | Get a guy who rides a snowboard and smokes pot. |
| 17:42.51 | brlcad | sure |
| 17:42.55 | brlcad | i agree |
| 17:42.56 | Laniakea | He'll be excellent in that |
| 17:43.05 | brlcad | the guys that worked on it weren't writing for general populace |
| 17:43.07 | Laniakea | You are army right? |
| 17:43.12 | brlcad | they needed a pattern for something they were doing |
| 17:43.19 | Laniakea | Borrow some private with big muscles and empty head. |
| 17:43.20 | brlcad | they wrote the interface, it was slapped in |
| 17:43.34 | Laniakea | No I don't mean just the pattern tool now |
| 17:43.39 | brlcad | I know you don't |
| 17:43.47 | brlcad | but the same holds for much of the interface |
| 17:43.48 | Laniakea | I have the same problem on Ronja. I need "common people" to fix the usability. |
| 17:44.29 | brlcad | the interface wasn't designed for public use, or even ease of use -- it was written to be powerful with much expert knowledge on hand to instruct on how to use it |
| 17:44.34 | Laniakea | I have the first Ronja piece which was designed in BRL-CAD completely virtually and only then a prototype manufactured. |
| 17:44.55 | Laniakea | Free software is however always for public use |
| 17:44.57 | brlcad | not a great approach for software design in general, leaves much polish work missing |
| 17:45.25 | Laniakea | Or of course it doesn't have to be, but it's a waste of a great potential if the public is excluded from it's usage. |
| 17:45.39 | Laniakea | I don't think the approach is a problem |
| 17:45.39 | brlcad | no, that's not the intent of course |
| 17:45.46 | Laniakea | All you need it some kind of UI refactoring |
| 17:45.48 | brlcad | it needs to be made better |
| 17:45.54 | brlcad | need people to make it better though |
| 17:45.56 | Laniakea | add deg here, x,y,z there |
| 17:46.02 | brlcad | otherwise you're arguing and complaining with yourself |
| 17:46.11 | Laniakea | Do you think I should try to compile the newest brl-cad? ;-) |
| 17:46.37 | brlcad | sure, don't see why not? |
| 17:47.13 | brlcad | that's not going to make this particular issue any better, that code hasn't changed |
| 17:47.15 | Laniakea | Still the old website? |
| 17:47.24 | brlcad | for now yes |
| 17:47.37 | brlcad | MinuteElectron's been making great progress on the new site |
| 17:47.47 | Laniakea | Any estimate when the new one is online? |
| 17:47.57 | brlcad | not really, it's on-going |
| 17:48.10 | MinuteElectron | a couple of days and the design will be complete - will still need to add tons of content though. |
| 17:48.26 | brlcad | TME: erm, you know that db_walk_tree has a callback for regions? |
| 17:48.52 | brlcad | yep, tons of content |
| 17:48.59 | brlcad | way more than is currently on the website |
| 17:49.11 | IriX64 | Laniakea: this what your talking about? http://www3.sympatico.ca/mario.dulisse2 patterntool (i'm trying to learn) |
| 17:49.11 | brlcad | will be *really* nice to start populating the wiki |
| 17:49.29 | MinuteElectron | afk |
| 17:50.03 | brlcad | ~afk |
| 17:50.03 | ibot | somebody said afk was Away From Keyboard |
| 17:50.13 | TME | brlcad: haven't seen db_walk_tree yet can I use it to load objects into a rt pointer? |
| 17:50.48 | brlcad | TME: I believe the answer is yes, what do you mean by load objects into a rt pointer? |
| 17:50.58 | brlcad | a struct rt_i raytrace instance pointer? |
| 17:51.07 | IriX64 | thought afk meant a funny kind and ask meant a sad kind :) |
| 17:51.22 | TME | TME: I want to populate a struct rt_i with regions so that I can raytrace through them in my transport code |
| 17:51.26 | brlcad | hehe |
| 17:51.37 | brlcad | talking to yourself now, eh? :) |
| 17:51.44 | TME | oops, got confused |
| 17:51.56 | TME | not the first time |
| 17:52.02 | brlcad | :) |
| 17:52.31 | TME | I've got a snippet of what I'm currently doing (it works, but may not be optimal/portable) |
| 17:52.51 | TME | http://pastebin.ca/601708 |
| 17:52.54 | IriX64 | :) |
| 17:54.25 | brlcad | TME: that's not too shabby |
| 17:54.46 | brlcad | not much different with the tree walker, just "sorta" does that loop for you |
| 17:55.02 | TME | brlcad: cool |
| 17:55.11 | brlcad | your loop doesn't account for other things like deleted geometry, hidden geometry, and other issues |
| 17:55.28 | brlcad | as it will just pull up everything that's a region |
| 17:55.36 | TME | brlcad: right now I'm focusing on ray-tracing through regions |
| 17:55.42 | TME | as those are the problems I have now |
| 17:55.57 | brlcad | what is this problem domain, if I may ask |
| 17:56.15 | TME | brlcad: want to do radiation transport through objects |
| 17:56.17 | brlcad | sounds interesting, and perhaps something I may already know about .. |
| 17:56.25 | brlcad | ah, yes, you guys :) |
| 17:56.39 | TME | brlcad: yes, Jeff Johnson was your contact here |
| 17:56.43 | brlcad | I believe Lee met with you guys |
| 17:56.50 | TME | brlcad: that's right |
| 17:57.11 | brlcad | I heard about the problem a little bit, but didn't dive too far into the details |
| 17:57.22 | TME | brlcad: this is currently a prototype for proof-of-principel |
| 17:57.29 | TME | principle, pebkac |
| 17:57.44 | brlcad | cool |
| 17:58.00 | brlcad | well, glad to help even before I knew who you were ;) |
| 17:58.09 | TME | brlcad: I'm hoping we can get some support for you guys to look over what I've got so far |
| 17:58.19 | brlcad | hopefully can get a successful proof going, really interesting project |
| 17:58.23 | Laniakea | brlcad: I think brl-cad is excellent for architecture since it's a solid modelling |
| 17:58.27 | TME | got it going |
| 17:58.37 | TME | thing works so far, but may not be ideal |
| 17:58.43 | Laniakea | and architecture is full of holes and complicated interactions of basic elementary solids |
| 18:00.02 | TME | brlcad: in any case, I'd be happy to send you my interface to BRLCAD if you're interested... |
| 18:02.47 | TME | brlcad: is it better to do if (db->d_flags & (DIR_COMB | DIR_REGION)) |
| 18:35.50 | *** part/#brlcad mec_guy (n=chatzill@59.95.35.161) |
| 18:38.55 | poolio | brlcad: I had to use db_walk_tree instead of functree becasue I needed to modify the union tree, oh well |
| 18:58.57 | IriX64 | opennurbs_curve.h (#include <assert.h> should fix it) |
| 19:05.49 | IriX64 | did :) |
| 19:11.57 | brlcad | poolio: you could have passed/stashed the union as the callback data, but whatever if it works it works ;) |
| 19:12.03 | brlcad | those two go hand in hand |
| 19:13.29 | brlcad | Laniakea: I'd agree, excellent in terms of representation -- needs more in terms of supporting design from scratch though (interface-wise) |
| 19:14.35 | brlcad | TME: I am certainly interested -- and don't be shy if you need to make changes to librt to support your application or if you have other questions on the API |
| 19:15.46 | brlcad | commit access is open to just about anyone that has an interest in improving the code |
| 19:16.07 | brlcad | and yes, is is better to and/or the flags against the symbols instead of using the direct values |
| 19:21.58 | IriX64 | would there be any interest I wonder, in a build from unix code that will run on windows? |
| 19:42.07 | TME | brlcad: I've basically got 1 class that does the stuff I'm talking about, I can pastebin it or send it |
| 19:42.20 | TME | brlcad: its not large, so let me know (if you want it ;)) |
| 19:44.29 | IriX64 | if there is an interest, it works with xwin32 too (thats with the cygwin root renamed so as to break cygwin) :) |
| 19:46.45 | MinuteElectron | interest here |
| 19:47.37 | IriX64 | really, I have a may 6 build thats fully functional can archive the whole tree and deliver where you say |
| 19:47.59 | IriX64 | can even put the xwin32 setup package in it |
| 19:48.32 | IriX64 | 30 minutes per run unless you buy it, or a one moth eval (and no im not affiliated with them) |
| 19:50.21 | MinuteElectron | 30 minutes per a run? where is their open source spirit? |
| 19:50.25 | IriX64 | need windows 2000 and up though :) |
| 19:51.09 | IriX64 | no idea |
| 19:51.22 | IriX64 | its commercial |
| 19:51.32 | IriX64 | me too |
| 19:51.35 | IriX64 | works fine |
| 19:51.52 | IriX64 | never tried vista |
| 19:52.17 | IriX64 | works with winaxe too |
| 19:52.38 | IriX64 | should work with any decent x server |
| 19:54.42 | IriX64 | If you're interested, i'll pack it up (I charge nothing this is a labor of love) |
| 19:56.58 | MinuteElectron | dw |
| 19:57.13 | IriX64 | ? |
| 19:57.18 | MinuteElectron | I am waaaay to busy at the moment/ |
| 19:57.33 | MinuteElectron | It would be another thing to distract me, maybe in a few weeks. |
| 19:57.51 | IriX64 | heh all right, tell me do you have bz2 extraction tools for windows? |
| 19:58.37 | MinuteElectron | yeah - 7zip |
| 19:58.45 | IriX64 | thankyou |
| 19:59.53 | IriX64 | I'll return to my compile :) |
| 20:02.26 | MinuteElectron | :) |
| 20:39.16 | IriX64 | 743mg archive, how am i suppsed to spread that around? |
| 20:41.32 | IriX64 | 2.19gb uncompressed, guess i shouldn't have compiled static :) |
| 20:44.35 | CIA-4 | BRL-CAD: 03jlowenz * 10brlcad/include/brep.h: debugging closeTo(); changed edge miss tolerance |
| 20:46.07 | CIA-4 | BRL-CAD: 03jlowenz * 10brlcad/src/conv/iges/brlcad.hpp: fix bug with brep surface orientation; fix bug with destructor (don't free already freed memory) |
| 20:47.19 | CIA-4 | BRL-CAD: 03jlowenz * 10brlcad/src/conv/iges/brlcad_brep.cpp: fix bug with brep surface orientation; fix bug with destructor (don't free already freed memory); fix bug with face orientation |
| 20:49.25 | CIA-4 | BRL-CAD: 03jlowenz * 10brlcad/src/librt/g_brep.cpp: debug edge_check routine; simplify to closeness check (remove left-of check) |
| 20:51.01 | CIA-4 | BRL-CAD: 03jlowenz * 10brlcad/src/other/openNURBS/opennurbs_curve.cpp: create new closeTo/search implementations to test a point instead of a ray; still debugging it |
| 20:52.20 | CIA-4 | BRL-CAD: 03jlowenz * 10brlcad/src/other/openNURBS/opennurbs_curve.h: add closeTo declaration for points; fix typo bugs in Sample class |
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