| --- Log opened Mon Feb 06 00:00:05 2012 |
| --- Day changed Mon Feb 06 2012 |
| 00:00 | < Rhamphoryncus> | So 10 for the hg revision, then a dash, then 3 letters for my branch name.. and that's it. |
| 00:01 | | You're now known as TheWatcher[zZzZ] |
| 00:05 | <@The_VV> | what game? |
| 00:08 | < Rhamphoryncus> | openttd |
| 00:08 | <@The_VV> | aha |
| 00:09 | < Rhamphoryncus> | There's a lot of good in that codebase, but it definitely suffers from old assembly mentality |
| 00:15 | <@The_VV> | I remember trying to pull stuff out of the save file. It hurt my brain some. |
| 01:45 | < maoranma> | http://youtu.be/lOIP_Z_-0Hs - I hope I am not presuming too much in thinking that, as a plant, you are not very smart... |
| 01:45 | < maoranma> | lol |
| 02:20 | <@froztbyte> | the world's just too awesome :) |
| 02:25 | <@froztbyte> | hanging out on little random corners of the internet the past 4 hours has given me hope again |
| 02:26 | <@froztbyte> | (which sounds ludicrously introspective but is worth saying anyway) |
| 02:35 | < maoranma> | froztbyte: Any particular example? |
| 02:37 | <@froztbyte> | maoranma: check the recent (6th feb) entries on http://pinboard.in/u:froztbyte |
| 02:37 | <@froztbyte> | it's mostly music and photographic stuff there specifically |
| 02:38 | <@froztbyte> | but other than that also some discussions I found in various places, seeing creativity still alive, watching people still do stuff that isn't just ... well, "shit" |
| 02:39 | < gnolam> | froztbyte: http://pulitzercenter.tumblr.com/post/16523137198/how-africa-tweets-portland-and -tweetminster |
| 02:39 | | * froztbyte clicks |
| 02:40 | <@froztbyte> | gnolam: yeah, I'm not surprised about the giant circle there at the bottom ;) |
| 02:40 | <@froztbyte> | quite surprised about Angola though |
| 02:40 | | * froztbyte didn't know about much there |
| 02:40 | <@froztbyte> | gnolam: thanks :) |
| 02:41 | <@froztbyte> | of course, the sad bit about it all is that in less than 5 hours this wondrous feeling of hope will probably be gone as monday morning at work dealing with other people squishes it out of existence |
| 02:41 | <@froztbyte> | but we can hope |
| 02:42 | < maoranma> | Soulsucking tech support? |
| 02:42 | < gnolam> | Yeah, it looks pretty much like I imagined it would. Except I'd guessed Nigeria ahead of Kenya. |
| 02:42 | < gnolam> | (Also, shouldn't you be in bed?) |
| 02:42 | | Kindamoody[zZz] is now known as Kindamoody |
| 02:43 | <@froztbyte> | maoranma: not quite, just ... stuff. I'm a sort of multirole person (netops, dev, sysadmin, 2nd/3rd-line support), and a lot of our customers are not always the brightest |
| 02:43 | <@froztbyte> | then there are various other bits that are not worth mentioning |
| 02:44 | <@froztbyte> | but all of it can add up to a bit of a fight |
| 02:44 | <@froztbyte> | gnolam: technically, yes, but last week was ludicrously tiring because I slept like shit. partied the hell out of friday and saturday evening, then crashed a lot at various times during sunday |
| 02:44 | <@froztbyte> | woke up around 11, gonna crash for another hour now at 05h30 or something |
| 02:46 | <@froztbyte> | but since my 300 download finished, I'm gonna get in bed now already |
| 02:46 | <@froztbyte> | and just take my headphones off when I wanna crash |
| 02:46 | <@froztbyte> | gnight \o :) |
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| 03:50 | < Rhamphoryncus> | That is a really annoying bug in X. Refuses to let me change mouse focus |
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| 04:36 | < Ling> | That's normally the WM's juristiction. |
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| 09:10 | | You're now known as TheWatcher |
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| 14:49 | < gnolam> | And the prize for the building's best WLAN name goes to "Pretty fly for a WiFi". |
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| 14:53 | <@froztbyte> | haha |
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| 16:56 | < Rhamphoryncus> | Ah, I am foolish. Not only have I started distributing my changes (via bitbucket), but I've also started using branches. The increased complexity has of course lead to failures |
| 16:56 | <@jerith> | *led |
| 16:56 | < Rhamphoryncus> | doh :P |
| 16:56 | <@jerith> | In spelling, if nothing else. :-) |
| 16:56 | < Rhamphoryncus> | Just getting a branch of bitbucket needed hg push --branch clean --newbranch -f |
| 16:57 | <@jerith> | Why does VCS hate you so much? |
| 16:57 | < Rhamphoryncus> | I have no idea |
| 16:58 | < Rhamphoryncus> | My ultimate goal is to have branches default (all my finished or stable patches), cleanup (which is stable), and route (WIP) |
| 16:59 | < Rhamphoryncus> | I have default and cleanup on bitbucket, but I don't believe default is updated |
| 17:01 | < Rhamphoryncus> | ahh, got default merged and updated |
| 17:02 | < Rhamphoryncus> | but the route branch.. merging it gives me conflicts which are just upstream changes (nothing I've done) |
| 17:04 | < Rhamphoryncus> | Hrm. I probably need to revert the default branch as I've been using a separate repository as a branch |
| 17:07 | < Rhamphoryncus> | .. god damnit. Apparently my branch name got applied to the upstream I-can't-believe-it's-not-a-branch, rather than my own I-can't-believe-it's-not-a-branch |
| 17:12 | < maoranma> | way to go? |
| 17:18 | <@ToxicFrog> | o.O |
| 17:19 | <@ToxicFrog> | I'm not sure here if hg branches are way more complicated than git branches, or if bitbucket is complicating the process somehow, or if you're just doing it wrong |
| 17:19 | < Rhamphoryncus> | No, it just hates me |
| 17:20 | < Rhamphoryncus> | hg rollback worked. hg backout did nothing. |
| 17:29 | < Rhamphoryncus> | route and cleanup have both merged the latest default, but it refuses to let me merge that revision of cleanup into route without having conflicts. There's nothing in that revision *except* the default merge |
| 17:31 | < maoranma> | So, you're just bad at VCS? |
| 17:32 | < Rhamphoryncus> | How am I bad? :P |
| 17:33 | < maoranma> | I dunno. Millions of people use VCS, and they seem to do it without issue |
| 17:34 | < Rhamphoryncus> | Lots of people complain about how hard they are to use |
| 17:34 | < maoranma> | Yea, I still haven't figured it out myself yet |
| 17:44 | <@ToxicFrog> | Rhamphoryncus: so what are the conflicts? Fire up your three-way merge tool and check it out. |
| 17:44 | < Rhamphoryncus> | hg fires it up for me. They're previously merged changes |
| 17:44 | <@ToxicFrog> | Seriously though, these are not issues you should be having on a single-person project, or at least not without knowing what caused them; it really does sound like you're doing things you don't understand. |
| 17:45 | < Rhamphoryncus> | I know it sounds that way |
| 17:46 | < Rhamphoryncus> | I use thg to monitor the pseudobranches and it looks sane |
| 17:48 | < Rhamphoryncus> | Naming the wrong pseudobranch was a fair mistake on my part. |
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| 19:57 | | * Vornucopia sets about improving his piecewise code, because making it work better is awesome. |
| 19:58 | <@jerith> | Vornucopia: I think my curve smoothing is horribly broken. |
| 19:58 | < Vornucopia> | Horribly broken how? |
| 19:58 | <@jerith> | But I'm going to get food and cogitate furiously upon the nature of IRC bot communication requirements. |
| 19:58 | <@jerith> | It makes things strangely pointy instead of smooth. |
| 19:59 | <@jerith> | But when I try to debug, I just get numbers. |
| 19:59 | < Vornucopia> | Are you using curvature, or radius of curvature? The former is the reciprocal of the latter, and what you should actually be using. |
| 19:59 | <@jerith> | And they just sit there being numerical at me. |
| 19:59 | <@jerith> | Hrm. Maybe that's it. |
| 20:00 | <@jerith> | ZeroDivisionError |
| 20:00 | < Vornucopia> | Oh, sweet. |
| 20:01 | <@jerith> | And hacking around that makes them even more weirdly pointy. |
| 20:01 | < Vornucopia> | If you're getting ZDEs there's something more wrong; you shouldn't be getting zde off this. |
| 20:02 | <@jerith> | I think it means I had it right the first time, and there are flat bits. |
| 20:03 | <@jerith> | But I think my derivatives are broken or something. Maybe. |
| 20:03 | < Vornucopia> | Probably. |
| 20:03 | < Vornucopia> | I'll have a look at it later. |
| 20:04 | <@jerith> | I haven't pushed my code, because it's broekn. |
| 20:04 | < Vornucopia> | Did the paper mention quadratic b-splines? That vaguely surprises me; the standard is generally cubic (because the standard for beziers is cubic and that's the usual way of evaluating.) |
| 20:05 | <@jerith> | It specifically mentions quadratic. |
| 20:05 | < Vornucopia> | Interesting. |
| 20:05 | <@jerith> | (And I'd prefer quadratic, because that's what OpenType outlines are made of. |
| 20:05 | <@jerith> | ) |
| 20:05 | < Vornucopia> | ...which makes the first derivative linear and the second pointwise... |
| 20:05 | < Vornucopia> | Okay that might not be pretty! |
| 20:05 | <@jerith> | Yes. |
| 20:06 | < Vornucopia> | On the other hand it might make the curvature calcs easier! |
| 20:07 | <@jerith> | ... and I see a bug. |
| 20:07 | < Vornucopia> | ?? |
| 20:07 | <@jerith> | I was using the second derivative in the denominator instead of the first. |
| 20:07 | | * jerith facepalms. |
| 20:07 | < Vornucopia> | Oops. |
| 20:07 | <@jerith> | ... but now I get fishies instead of circles. |
| 20:08 | < Vornucopia> | wtfx |
| 20:08 | < Vornucopia> | ....possibility, are you absoluting the curvature numbers? |
| 20:09 | <@jerith> | Because I didn't take out the inversion I added 8 minutes ago. |
| 20:09 | <@jerith> | That looks better. |
| 20:09 | <@jerith> | Still wonky, but that's probably because my endpoints are all over the place. |
| 20:10 | <@jerith> | I think I can fix that. Maybe. |
| 20:10 | <@jerith> | But first, food and thinking about IRC bot stuff. |
| 20:10 | <@jerith> | Thanks! You've been an excellent debugging tool! :-) |
| 20:11 | | * Vornucopia enjoys debugging hard math blind! :D |
| 20:11 | <@jerith> | (Mostly, you mde me look at the right bit of the code.) |
| 20:12 | | * Vornucopia thinks that he should rejigger his interval ops code. |
| 20:14 | < Vornucopia> | It's long and horrible and I suspect there's some duplication in here. |
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| 20:18 | < Vornucopia> | (__and__ and __or__ are each 14 lines long.) |
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| 21:07 | < Vornucopia> | Gah, this code just doesn't want to get nicer. |
| 21:07 | < Vornucopia> | It feels like I should be able to combine them into an andor and then from there do the breakdown; but there's so many ridiculous cases... |
| 21:09 | <@jerith> | It turns out hard math is hard? |
| 21:09 | < Vornucopia> | This is actually the easy math. |
| 21:10 | < Vornucopia> | Calculus on polynomials was a 1-liner; piecewises should be not much longer. |
| 21:13 | < Vornucopia> | But combining intervals as I am in need of doing is giving me problems. |
| 21:14 | <@jerith> | So it lulled you into a false sens of security. |
| 21:15 | < Vornucopia> | Heh, no, it's just that the "easy" math has all the weird cases. |
| 21:15 | <@jerith> | My smoothing seems to work fine, except for the endpoints. |
| 21:17 | < Vornucopia> | Getting the endpoints not ending up matching? |
| 21:17 | < Vornucopia> | (this is for closed splines, right?) |
| 21:18 | < Vornucopia> | Make sure that when you move a control that's near the ends, that you also move its counterpart. |
| 21:19 | <@jerith> | Yeah. |
| 21:19 | <@jerith> | My plan was to move them all individually, and then realign the endpoints. |
| 21:19 | <@jerith> | But I don't think that's going to work. |
| 21:20 | <@jerith> | I /think/ what I need to do is wrap around the domain or something. |
| 21:22 | < Vornucopia> | I think you might end up needing a closed spline specialization. |
| 21:24 | <@jerith> | Yeah. |
| 21:31 | < Vornucopia> | This would also let you dynamically choose knot locs as you move points; it'd be a subtle effect, but there's some interesting knot selection methods. They'd be much slower than uniform. |
| 21:33 | < Vornucopia> | (uniform, btw, you can use integer locations for your knots; unlike the bezier spline, the b-spline can have any closed interval as its domain) |
| 21:34 | < Vornucopia> | (also works somewhat better than doing division to pick knot points!) |
| 21:35 | <@jerith> | So, those course notes I linked you two have two different methods for making closed splines. |
| 21:35 | < Vornucopia> | Right, I couldn't figure out one of them. |
| 21:35 | <@jerith> | One has you wrapping control points and the other has you wrapping knots. |
| 21:35 | <@jerith> | Yeah. I could only figure the point-wrapping one out. |
| 21:35 | < Vornucopia> | Or rather I couldn't figure out what was going on with there being two. |
| 21:36 | < Vornucopia> | I just did (for cubics) a b c d e f g a b c, and then just repeat the first few knots as well. |
| 21:36 | < Vornucopia> | well, repeat the first few knot strides. |
| 21:37 | < Eri> | Still sounds kinky |
| 21:38 | <@jerith> | I did abcdefgab and had evenly-spaced knots. |
| 21:38 | < Vornucopia> | Right, that's what I did; in your case all the knot strides are the same anyway. |
| 21:39 | | * Vornucopia does some fiddling. Okay, andor can be a single function that does both and then I break out the results... then I need __sub__ and with those two I can build __xor__ |
| 21:41 | < Vornucopia> | That these things don't respond to other sets yet is a minor issue that I'll have to tackle later when I'm doing equation solving on piecewises (which falls back on piecewises) |
| 21:42 | < Vornucopia> | (er, on polynomials) |
| 21:42 | < Vornucopia> | (and then when that's done I will have a program that can do algebra 2. Precalc on the other hand might be a problem!) |
| 21:43 | <@jerith> | Where does this code live? |
| 21:43 | < Vornucopia> | Currently it's in spline/algebra.py |
| 21:44 | < Vornucopia> | er, depixeldrod/algebra.py |
| 21:45 | < Vornucopia> | but it's kind of a bloody mess right now, and I need to fix a few things. |
| 21:49 | < Vornucopia> | I've got like a dozen todos. |
| 21:49 | < Vornucopia> | Anyway, time to go back to work. |
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| --- Log closed Tue Feb 07 00:00:30 2012 |