irclog2html for #brlcad on 20050330

01:40.08 *** join/#brlcad tancred (~tancred@d233-64-63-249.clv.wideopenwest.com)
02:01.29 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/liboptical/material.c: quell warning about type conversion
02:14.06 tancred I am curious. How difficult would it be to have a "undo" feature in brlcad? So that if I don't like something I did X number of undo changes could be done.
02:16.44 brlcad tancred: that's been the topic of discussion for several years now
02:17.08 brlcad difficult is relative, of course -- but it wouldn't be incredibly too hard
02:17.15 brlcad there are many ways it could be done, though
02:25.40 tancred Have you heard about the Command design pattern?
02:35.03 tancred I have go now. I would like to talk about the design later. Is there a time when the main developers are online?
02:35.42 brlcad yes, i'm familiar with it
02:36.26 tancred Well I would like to talk later about the design. When are you typically online?
02:36.29 brlcad most of the devs are EST, though only a few have made it in to here to date
02:36.35 brlcad i'm here most all the time, though ;)
02:36.46 brlcad and if I'm not, I read the log
02:37.01 tancred How do I obtain the log via IRC?
02:37.02 brlcad feel free to post and idle, and I'll respond
02:37.20 brlcad ~logs
02:37.21 ibot apt/ibot/jbot/purl all log to http://ibot.rikers.org/<channelname>/ where channelname is html encoded ie: %23debian | lines that start with a space are not shown | some channels have stats at http://ibot.rikers.org/stats/<channelname>.html.gz
02:37.33 tancred Thanks.
02:37.40 *** part/#brlcad tancred (~tancred@d233-64-63-249.clv.wideopenwest.com)
03:00.04 narnia which means that only a few developers are in the correct timezone. ;-)
03:03.32 brlcad or just that more devs are needed :)
03:11.03 narnia well this is true.
03:13.47 narnia here is an interesting fact: while looking to the disk space hogs i found this: 344M /usr/local/brlcad vs 2.3G /usr/local/OpenCASCADES.2
03:14.50 narnia orders of magnitude difference.
03:21.22 brlcad not quite an order of magnitude :) only about 7x
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07:09.05 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/liboptical/Makefile.am: ACK! shade has a multispectral mode too and must be included into libmultispectral otherwise nasty crashes occur.
07:10.08 *** join/#brlcad ChanServ (ChanServ@services.)
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07:11.05 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/rttherm/Makefile.am: get rid of the stale files and make lib dependant upon liboptical (for AmbientIntensity, rdebug, background and maybe a couple other globals).
07:14.41 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/liboptical/ (7 files): consistency on the #ifdef inclusions of RT_MULTISPECTRAL, clean up the spectrum extern declarations now that spectrum is now a liboptical global.
07:17.45 narnia after re-read part11 for the nth time i have come to an understanding of 'use' and 'reference'. the best analogy for 'use' is include files. 'use' many be chained. the 'used' object becomes local to the schema's scope. the best analogy for 'reference' is extern. the 'referenced' item is visible to the schema's scope but not local to the schema's scope. if any object is both 'used' and 'referenced' in the same schema 'use' wins out.
07:22.53 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/libmultispectral/init.c: remove rdebug, AbientIntensity, spectrum, and background from libmultispectral as those defines are (at least now) coming from liboptical's init.c. this avoids duplicate symbol and initialization scope errors
07:23.48 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/rttherm/pixtest.c: spectrum is in liboptical library now
07:24.50 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/rttherm/ssamp-bw.c: quell a basename duplicate symbol warning
07:26.00 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/rttherm/ssampview.c: quell basename duplicate symbol warning (system lib on os x), quell Tcl_CreateCommand argument type warnings)
07:27.12 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/rttherm/viewtherm.c: env_region is provided through liboptical so not needed in the front end
07:30.34 CIA-10 BRL-CAD: 03brlcad * 10brlcad/NEWS: fixed rttherm previous results interference bug
07:38.44 CIA-10 BRL-CAD: 03brlcad * 10brlcad/include/spectrum.h: add the headers this header depends on
07:41.44 CIA-10 BRL-CAD: 03brlcad * 10brlcad/src/rt/do.c:
07:41.44 CIA-10 BRL-CAD: fix rttherm (and pretty much any of the rt progs) from crashing when the output
07:41.44 CIA-10 BRL-CAD: file already exists and is larger than the size currently being rendered. also
07:41.44 CIA-10 BRL-CAD: change the pixmap malloc to a bu_malloc to avoid returning null
08:11.30 narnia someone has been a busy little beaver. ;-)
08:53.20 *** join/#brlcad PrezKennedy (~Matthew@130.85.253.237)
16:03.15 *** join/#brlcad ibot (ibot@c-24-1-105-52.client.comcast.net)
16:03.15 *** topic/#brlcad is http://brlcad.org/ || BRL-CAD is now Open Source! || Screenshots: http://sourceforge.net/project/screenshots.php?group_id=105292 || http://brlcad.org/images/mged.jpg || Release 7.2.0 is posted (20050305)
17:34.37 *** join/#brlcad cad281 (~519b6e9e@bz.bzflag.bz)
17:36.02 cad281 hi all
17:36.35 *** join/#brlcad cad281 (~519b6e9e@bz.bzflag.bz)
17:56.16 *** join/#brlcad Li (lieven@host81-155-110-158.range81-155.btcentralplus.com)
18:03.20 *** join/#brlcad Li (lieven@host81-155-110-158.range81-155.btcentralplus.com)
18:22.54 *** join/#brlcad Li (lieven@host81-155-110-158.range81-155.btcentralplus.com)
18:22.59 Li hi all
18:24.06 narnia Li, hello, how goes it?
18:24.17 Li well thank, you?
18:24.46 narnia enjoying a spring day.
18:25.16 Li here: rain and dreary, awaiting spring with eagerness...
18:25.33 Li May I ask you a question?
18:25.38 narnia here: breezy, sun shine, warm.
18:25.42 narnia sure
18:25.58 Li I just started brlcad and am well impressed ...
18:26.06 narnia good to hear
18:26.26 Li using br-pix I can get 'sceenshots' but ...
18:26.42 brlcad hello Li
18:26.52 narnia yes
18:27.04 Li I want to use them in a postscript file with the background transparant. Know of any way to do this?
18:27.11 Li hello brlcad
18:27.14 narnia gimp
18:27.37 Li of course ...
18:27.43 brlcad Li: depends what you are screenshotting
18:28.04 Li what do you mean brlcad?
18:28.07 brlcad Li: you can export postscript or plotter rules to a file of the wireframe
18:28.57 brlcad if you want the rendered, you'll have to use an image-editing package to remove the background color for transparencty
18:29.19 Li Up to now I have been br-pix ing raytraced pictures
18:30.03 Li what would I start reading to export to postscript?
18:31.36 Li of course i meant fb-pix in all of the above
18:32.41 brlcad br-pix?
18:32.46 brlcad ahh
18:33.13 brlcad Li: in mged on the File menu Render View
18:33.43 brlcad again, that is only the wireframe, not any raytraced image
18:34.18 brlcad fb-png is probably more useful for insertion into other documents
18:34.30 Li I understand but it may be an alternative way to represent my model. Many thanks.
18:35.15 Li fb-png or the likes are indeed better to look at and once I get the transparancy sorted it will look great.
18:35.20 brlcad if you export a plot file, there are a handful of pl-* commands that might be of interest
18:36.41 Li I have not really come accross plot files before so there's an other thing I will read up on.
18:37.00 brlcad it wouldn't be too difficult to add a transparency option to the *-png commands for the background color
18:37.37 brlcad that would be single-value transparency, though -- full alpha channel support would be more difficult
18:38.01 brlcad Li: it's the old format that used to control the line plotter devices you may have seen in old movies :)
18:38.06 Li yes, I see what you mean.
18:38.43 Li brlcad, are you (co-)developer of this?
18:41.01 brlcad yes
18:41.41 Li thanks for making this available for public use.
18:41.55 brlcad it only took me five years :)
18:43.15 brlcad getting BRL-CAD open sourced was rather difficult and took a relatively "long time" (tm) .. in the end we were just ultimately lucky (right place, people, time)
18:44.29 Li I can imagine that being the difficult part.
18:44.51 brlcad It's been great since, though
18:45.06 Li I have just compiled on a linux ppc (ibook2) and simply ran a make on it and all worked (until now)
18:45.29 brlcad until now?
18:45.46 brlcad something hasn't worked? or you mean the transparency feature?
18:45.53 Li I have only done basic things with it. :-)
18:46.08 Li I do not foresee problems.
18:46.42 Li I got it to crash (but that was my own fault)
18:46.48 brlcad feel free to hang out here and get more involved :)
18:47.08 brlcad oh? a crash is bad even if your "fault" :)
18:47.16 Li I will and look forward to it.
18:48.08 Li I created a circular refernce in 2 regions. then tried drawing them. bang.
18:49.58 brlcad eek, that's not good
18:50.06 brlcad funny, but not good :)
18:50.35 Li :-))
18:50.46 brlcad do you have an sf.net account to post a bug report for that?
18:51.59 Li No I have not but I am not sure this warrants a bug since I created the reference with ted so it would be very difficult to check and flag. Do you agree?
18:52.16 brlcad anything that causes a crash is a bug
18:53.04 brlcad now if it pops up a dialog and quits, that's different .. but it shouldn't ever crash
18:53.32 Li true. I will get that organised. Can i file feature requests there too (transparancy)?
18:54.33 brlcad of course!
18:54.35 brlcad please so
18:54.38 brlcad s/so/do/
18:55.02 Li Many thanks all. Now I must get back to work.
18:55.14 brlcad same here, thank you
21:38.50 *** join/#brlcad narnia (~terrylr@johann.blauedonau.com)

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