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| 01:43.41 | brlcad | mihaineacsu_bbl: hi, if you post a question, I'll usually respond when I read it if you're joined to the channel (so no need to wait or ask for anyone) |
| 02:09.53 | maths22_ | does anyone know what's up with all the joins and parts? |
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| 03:30.58 | hcurtis | brlcad: Hi, Sean. I have a BRL-CAD build going, and I'm reading GCC information. |
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| 05:53.30 | fenn | maths22: people opening and closing their laptops, most likely |
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| 11:42.09 | *** join/#brlcad raj12lnm (31cd6b50@gateway/web/freenode/ip.49.205.107.80) |
| 11:42.28 | raj12lnm | hi folks |
| 11:42.34 | raj12lnm | do any body use mged ? |
| 11:42.53 | raj12lnm | I just wanted to test if creation of a bot primitive breaks mged. |
| 11:43.05 | raj12lnm | It doesn in my set-up. Not sure why |
| 11:46.45 | raj12lnm | So it would be really appriciable if someone with brlcad setup could create a "bot" of type "surface" or "solid" |
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| 12:05.52 | brlcad | raj12lnm: you can create a bot in mged with the facetize command |
| 12:05.54 | raj12lnm | so yes! just open mged. Create a new sample data bse |
| 12:05.57 | raj12lnm | in bot.g bot 3 1 2 1 1 0 0 0 1 0 0 0 1 1 0 2 |
| 12:06.25 | brlcad | make sph sph ; facetize sph.bot sph |
| 12:07.03 | raj12lnm | brlcad : how is it different from the normal bot. Just to understand it better |
| 12:07.29 | raj12lnm | found this on the web http://brlcad.org/wiki/MGED_CMD_facetize |
| 12:07.41 | brlcad | how is it different? |
| 12:07.46 | brlcad | it's not different, that is a normal bot |
| 12:08.58 | raj12lnm | so i my aim was to just to understand the creation of bot using in command. |
| 12:09.03 | brlcad | note that the in bot.g that you create there is technically invalid, so something may choke on it |
| 12:09.15 | brlcad | I don't believe the in command does any validation |
| 12:09.35 | raj12lnm | brlcad: thats the issue! |
| 12:09.43 | raj12lnm | it simply breaks. mged shuts down |
| 12:09.44 | brlcad | fix it ;) |
| 12:10.14 | brlcad | so first though, it should also never crash |
| 12:10.23 | brlcad | so if you have something crashing, that'd be good to fix too |
| 12:10.26 | raj12lnm | can you try in your system. |
| 12:10.32 | raj12lnm | > |
| 12:10.33 | brlcad | I did, it created it |
| 12:10.41 | brlcad | it's one triangle |
| 12:10.50 | raj12lnm | really ? |
| 12:11.02 | raj12lnm | can you suggest what could be wrong in my system ? |
| 12:11.15 | brlcad | the 'in' command expects to create a solid (volume mode) bot, and that's just one triangle (so it's not solid, but marked that it is) |
| 12:11.39 | brlcad | try creating a box or a prism |
| 12:12.43 | brlcad | maths22: could be lots of reasons for that .. but probably just freenode shifting some servers around |
| 12:13.14 | raj12lnm | brlcad : so, you mean there should be a legit solid or surface and not just any parameters and sets of triangle. |
| 12:13.21 | raj12lnm | Am I right in understanding this ? |
| 12:13.32 | raj12lnm | is now creating a prism |
| 12:17.11 | brlcad | raj12lnm: notionally yes, but even your invalid geometry should work -- that specifically doesn't work? |
| 12:17.15 | brlcad | does the in command crash? |
| 12:17.28 | brlcad | need a stack trace |
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| 12:17.48 | raj12lnm | brlcad : this also crash |
| 12:17.49 | raj12lnm | in prism bot 4 4 1 2 0 0 1 1 0 0 0 1 0 1 1 1 0 1 2 0 1 3 0 2 3 1 2 3 |
| 12:18.20 | raj12lnm | brlcad : how to get the stack trace ? |
| 12:18.54 | raj12lnm | brlcad : it says core dumped |
| 12:19.13 | raj12lnm | is adding pointers in the code to see what is breaking. |
| 12:19.15 | brlcad | run mged in gdb |
| 12:19.45 | brlcad | gdb --args mged |
| 12:19.50 | brlcad | "run" |
| 12:20.06 | brlcad | "in prism bot .." |
| 12:20.18 | brlcad | then when it catches the crash run "backtrace" |
| 12:21.58 | brlcad | (a debugger is infinitely more powerful than adding pointers in the code, worth learning) ;) |
| 12:23.17 | brlcad | raj12lnm: also make sure you're using trunk ... that the only one we care about debugging |
| 12:26.36 | raj12lnm | brlcad : I got the issue |
| 12:26.54 | raj12lnm | i was priniting some variable for testing the data while creating plates |
| 12:27.09 | raj12lnm | so since that is not allocated while creating solid and surface |
| 12:27.12 | raj12lnm | thus it gives error |
| 12:27.20 | raj12lnm | brlcad : thanks for helping |
| 12:30.17 | raj12lnm | BTW if your still looking for the output from gdb(backtrace) see this http://tny.cz/a1c73f4f |
| 12:32.21 | raj12lnm | brlcad : But I still think the post which I sent regarding the bug in the mk_metaball definition is a "real" bug |
| 12:32.32 | raj12lnm | please see that when you get time. |
| 12:39.19 | mihaineacsu | brlcad: just as you mentioned in the email, since my project somewhat overlaps Albert's tasks, I was going to ask on how to select my next taks. |
| 13:02.29 | brlcad | mihaineacsu: yes, we need to discuss -- do you have time later today? |
| 13:03.20 | brlcad | mihaineacsu: I suggest starting on the C side and getting up to speed on how the tools work (have you done this already?) |
| 13:03.21 | mihaineacsu | brlcad: sure, I'll be around all weekend long. Just ping me :) |
| 13:04.32 | mihaineacsu | brlcad: yeah, I checked the bug you mentioned and that got me in a workflow to check the tools. Is there's anything specifically I should check? |
| 13:07.27 | brlcad | you should be familiar with how to use them :) |
| 13:07.46 | brlcad | have you calculated a mass using both yet? |
| 13:09.20 | brlcad | and what about the bug, did you make any progress on that bug? |
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| 13:10.50 | mihaineacsu | I just used rtweight. As for the bug(s) I got it fixed but it needs a second oppinion. |
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| 14:04.17 | pandrei | I'm looking at class structure in |
| 14:04.26 | pandrei | Combination.h, as Daniel suggested |
| 14:05.26 | pandrei | and I don't understand something |
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| 14:05.50 | pandrei | TreeNode extends ConstTreeNode |
| 14:06.06 | pandrei | but declares the same methods (LeftOperand, RightOperand etc) again |
| 14:06.13 | pandrei | why? |
| 14:13.14 | pandrei | nevermind |
| 14:33.39 | d_rossberg | the version in ConstTreeNode is const, the one in TreeNode not |
| 14:35.21 | pandrei | oh, you're here! |
| 14:35.22 | pandrei | great! |
| 14:35.29 | d_rossberg | the results of the methods in ConstTreeNode are unchangable, the ones of TreeNode not |
| 14:35.45 | pandrei | I'm currently working on the interface, so far I've only set the constructors and the Object methods |
| 14:35.58 | pandrei | so nothing special, but I've been looking into sketch |
| 14:36.51 | pandrei | we should be able to set the default embedding |
| 14:37.02 | pandrei | and the array of vertices defining the sketch plane |
| 14:37.53 | pandrei | oh, wait |
| 14:37.57 | d_rossberg | the Const~ clases are for exploration only |
| 14:38.15 | pandrei | so the sketch structure has a point, two vectors for defining the plane |
| 14:38.21 | pandrei | and an array of points |
| 14:38.28 | pandrei | 2D points, more precisely |
| 14:38.44 | d_rossberg | you should hide the set of points and handle them implicitely |
| 14:39.00 | d_rossberg | they are osed by the sections |
| 14:39.44 | d_rossberg | (or better: segments) |
| 14:40.20 | pandrei | right now, I need to find how to define a sketch |
| 14:40.45 | pandrei | you said that the points should be private, then I need to find what to pass to a constructor |
| 14:41.40 | d_rossberg | the sketch is mainly a set of segments in rt_curve |
| 14:42.35 | d_rossberg | in line_seg you have only the indices of the points (in the vertex array) |
| 14:43.18 | d_rossberg | more natural for an interface would be to work with the real points (i.e. 3 x double) |
| 14:43.44 | d_rossberg | i.e. Vector3D |
| 14:44.03 | d_rossberg | and store them automatically in the vertexarray |
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| 14:45.51 | pandrei | so I would have a Vector3D array that would need to be somehow fit to rt_sketch_internal structure |
| 14:46.02 | pandrei | ? |
| 14:46.30 | pandrei | I'm currently looking in rt_sketch_import, in sketch.c |
| 14:48.32 | pandrei | it determines the verts based on ther indexes |
| 14:48.50 | pandrei | then allocates space for segments in curve |
| 14:49.37 | pandrei | and then for each segment determines the nature and type of the curve |
| 14:49.46 | pandrei | that is my understanding so far of the sketch initialization |
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| 14:56.28 | d_rossberg | oh, sorry, it hast to be Vector2D because we are in the plane |
| 14:57.28 | d_rossberg | the default constructor would build an empty sketch |
| 14:57.58 | d_rossberg | copy constructor and no other constructor |
| 14:58.25 | d_rossberg | for adding and removing sections you have to provide methods |
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| 15:00.44 | pandrei | sorry for the retarded question but, what do you define as a section? |
| 15:01.10 | pandrei | I imagine this object as an array of consecutive points which you plot through |
| 15:03.45 | d_rossberg | oh, its called segemnt there: rt_curve |
| 15:04.29 | d_rossberg | line, circular arc, nurb, bezier |
| 15:06.14 | pandrei | ah, so a section is a set of segments |
| 15:07.18 | d_rossberg | no, i used section and segment as synonyms |
| 15:07.29 | d_rossberg | the right word is segment |
| 15:08.31 | d_rossberg | i've to leave soon |
| 15:09.08 | pandrei | it's no problem, you've helped me understand several important aspects |
| 15:09.18 | pandrei | i.e now I know genptr_t is a placeholder for segments like |
| 15:09.20 | pandrei | line_seg |
| 15:09.20 | pandrei | etc |
| 15:09.52 | pandrei | I'm not entirely figured out about sketch, but I can deffinetly make some progress in your absence, which is great, thanks ! |
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| 16:06.04 | pandrei | thanks for pointing out, Mihai! |
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| 18:57.25 | raj12lnm | ankesh11 : What a coincidence ; |
| 18:57.27 | raj12lnm | ) |
| 18:58.27 | ankesh11 | raj12lnm: Indeed! |
| 18:59.10 | raj12lnm | ankesh11 : can I PM with you. |
| 18:59.16 | raj12lnm | ? |
| 18:59.30 | ankesh11 | Sure. |
| 19:05.37 | ``Erik | brlcad: free ssl cert for OS, mebbe one for brlcad.org? https://www.globalsign.com/ssl/ssl-open-source/? |
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| 23:00.59 | clock | it seems to me like in the IT, if its not clear how a function is implemented |
| 23:01.16 | clock | and there are 2 different ways how it could be implemented |
| 23:01.23 | clock | it is always the one that is unusable |
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