| --- Log opened Thu Apr 02 00:00:17 2015 |
| 00:04 | <@Thalass> | heh |
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| 08:35 | <@Wizard> | My favourite part of the gentoo.org April Fools was the "© 1970â1981 Gentoo Foundation, Inc." |
| 08:35 | <@Wizard> | All about the details |
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| --- Log closed Thu Apr 02 09:54:44 2015 |
| --- Log opened Thu Apr 02 10:08:49 2015 |
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| 11:52 | < abudhabi> | Hmm. |
| 11:53 | < abudhabi> | How do I draw a text string in graphics2D, but make it ignore scaling? |
| 11:53 | < abudhabi> | I mean, I still want it to scale its coordinates, but not its size. |
| 11:53 | < abudhabi> | So when I zoom in/out, the text stays the same size, but changes place according to the scaled coordinates of the things it labels. |
| 11:53 | < abudhabi> | (Java.) |
| 12:20 | | Netsplit *.net <-> *.split quits: @iospace, abudhabi, @Shiz, tripflag, @Syloq, @Attilla, Derakon[AFK], @Xires, @froztbyte, Reiver, (+24 more, use /NETSPLIT to show all of them) |
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| --- Log closed Thu Apr 02 16:02:55 2015 |
| --- Log opened Thu Apr 02 16:11:02 2015 |
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| 17:12 | < abudhabi> | Y'all ever notice that in large programming channels, the ones with hundreds of users, the active regulars tend to be very impatient with newbies? |
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| 17:25 | <&ToxicFrog> | abudhabi: yes, and furthermore, I can tell you exactly why |
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| 17:26 | < abudhabi> | Is it because they have to deal with a never-ending queue of morons, and thereby assume that everyone is a moron? |
| 17:29 | <@Shiz> | it's because they're on freenode |
| 17:30 | < abudhabi> | Explain? |
| 17:36 | <&ToxicFrog> | abudhabi: yes. |
| 17:36 | <&ToxicFrog> | More specifically, they've seen a shitload of newbies, and 90% of them are either (a) not actually interested in learning, they just want someone else to write the code for them or (b) woefully unprepared for what they're trying to do and refuse any attempt to get them to learn the fundamentals first |
| 17:37 | <&ToxicFrog> | It gets wearing after a while. |
| 17:40 | < abudhabi> | Mhm. I had this situation in ##java just now. I begin sketching out my problem, which results in a couple of them going "gib code nao" and using one of the many standardized bot functions in order not to actually type out the request, then get mildly insulting when I proceed to continue to sketch out my problem. |
| 17:41 | < abudhabi> | I was actually trying to decide which bits of code were actually relevant, since the issue seems broad, and I don't want to just paste them the entire project. |
| 17:43 | < abudhabi> | After I told them that I realize where their impatience is coming from, they become insulted. |
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| 18:43 | | * TheWatcher readsup, changes ToxicFrog's (a) to be "not actually interested in learning, they just want someone to do their homework for them" |
| 18:44 | <&ToxicFrog> | TheWatcher: sometimes it's not even homework! |
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| 20:42 | <@Ogredude> | what ToxicFrog said about helping the n00bs |
| 20:42 | <@Ogredude> | definitely the case |
| 20:43 | <@Ogredude> | So I started playing with Arduino yesterday |
| 20:43 | <@Ogredude> | looks like I need to brush up on my C |
| 20:43 | <@Ogredude> | is there a way of including C libraries inline, or do the .h files have to go through a separate part of the compiler/linker? |
| 20:44 | <@Ogredude> | I ask because I've found 123D Circuits, a circuit and arduino simulator, but it doesn't allow me to use external libraries, and I need the Time library and another one that lets me calculate sunrise/sunset |
| 20:47 | <&ToxicFrog> | So, #include basically just copy-pastes the included file into the one containing the #include. |
| 20:48 | <&ToxicFrog> | The .h typically just contains type information that the compiler can use to check your usage of the corresponding library without actually having to have the code for that library at hand. |
| 20:49 | <&ToxicFrog> | The linker then handles wiring up the actual code behind those declarations. |
| 20:49 | <&ToxicFrog> | You can #include the .c instead to get the actual code spliced into your file; this is extremely filthy but is, very rarely, the right choice |
| 20:49 | <&ToxicFrog> | That said, I thought that Arduino programs were statically linked anyways. What does 123D Circuits actually mean by "external libraries"? |
| 20:54 | <&McMartin> | "Static linking" is when external libraries are in .a or .lib format (depending on platform/toolchain) and then up being spliced in at linktime. |
| 20:54 | <&ToxicFrog> | Yeah, sorry, guess I should clarify some things |
| 20:55 | <&ToxicFrog> | With static linking, the linker (part of the toolchain that turns source code into executable programs) combines the libraries with the rest of the program up front. What you feed to the simulator is a single program file. |
| 20:55 | <&ToxicFrog> | With dynamic linking, the libraries are separate files that are loaded at program run time. |
| 20:56 | <&ToxicFrog> | AIUI, the heart of the Arduino is a microcontroller that doesn't really have a filesystem or an OS, so everything is statically linked, and that's up to your build tools; the simulator has no say in it. |
| 21:06 | | Kindamoody|afk is now known as Kindamoody |
| 21:10 | < gnolam_> | Yeah. It's an ordinary AVR. |
| 21:19 | < abudhabi> | Hmm. |
| 21:20 | < abudhabi> | Apparently, running repaint() on the JFrame that holds the JTabbedPane that holds my custom JPanel yields a different rendering of the former than running its own repaint() method. |
| 21:25 | < abudhabi> | Oh, wait, no. It's JFrame -> JTabbedPane -> JScrollPane -> custom JPanel. |
| 21:28 | <&McMartin> | Those are lines of containment, not inheritance, so it's not hugely surprising that repaint is broader in those cases |
| 21:28 | < abudhabi> | Broader isn't the issue. |
| 21:29 | < abudhabi> | http://i.imgur.com/Hi7AvnF.png http://i.imgur.com/PVRAsc6.png |
| 21:29 | < abudhabi> | Note the position of the cursor. |
| 21:29 | < abudhabi> | RMB is supposed to center the star on the cursor. |
| 21:29 | < abudhabi> | The former image is window.repaint(), the latter is panel.repaint(). |
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| 21:50 | <@Ogredude> | ToxicFrog: well, in the Arduino environment, you check the libraries you want included, and it'll put in your sketch for example #include <Time.h>; |
| 21:51 | <@Ogredude> | I may actually be better of with an RTC module on the Arduino |
| 21:51 | <@Ogredude> | doing some research, the internal clock of the thing will run out after 70 days of uptime |
| 21:51 | <@Ogredude> | and I don't really see a feasible way to set the time when you start it up |
| 21:52 | <@Ogredude> | with the Time library it could easily handle "18 hours from now" but not so easily "18 hours starting an hour after sunrise" |
| 21:52 | <@Ogredude> | mostly because it'd have no idea what the date is |
| 21:52 | <@Ogredude> | to calculate the sunrise from |
| 21:53 | <@Ogredude> | (which I found out is basically plotting a value on a sine graph) |
| 21:55 | <@Ogredude> | so technically if I wanted the Time library in the simulator, I could just copy-paste time.c into there |
| 21:55 | <@Ogredude> | ugly but feasible |
| 21:58 | <@Ogredude> | I'm building a greenhouse lighting controller. |
| 21:59 | <@Ogredude> | I need to be able to set a lighting cycle (18 hours of light for vegetating, 12 hours for flowering), and the system will start the daytime cycle a half hour after sunrise and kick on the electric lights if the light level is too low. It'll avoid turning on the lights if they've been off less than 15 minutes (HID bulbs die quicker if you don't let them cool fully before turning them back on), and it'll be able to run motorized |
| 21:59 | <@Ogredude> | blackout curtains when the darkness cycle comes along |
| 21:59 | <@Ogredude> | planning on having it also tied in with motion detectors that will flip on green safelights during the dark cycle |
| 22:00 | <@Ogredude> | there's enough I/O pins on the thing, I should be able to run 4 lighting zones |
| 22:00 | <@Tamber> | Wow, that's nice and serious. :D |
| 22:00 | <@Ogredude> | yeah this is my first ever arduino project too :) |
| 22:02 | < gnolam_> | Ogredude: Not to be That Guy, but the main part sounds more like a job for ordinary outlet timers. |
| 22:02 | <@Ogredude> | gnolam_: well, except for the distinction that we don't want the lights to come back on if they've been off less than 15 minutes... And the ability to key the daylight cycle to sunrise |
| 22:03 | <@Ogredude> | a plain old outlet timer is perfect for an indoor grow room |
| 22:03 | <@Ogredude> | but we're using a big ole fusion reactor for our main lights |
| 22:03 | | Turaiel is now known as Turaiel[Offline] |
| 22:03 | <@Ogredude> | gnolam_: also a regular outlet timer can't control blackout curtains |
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| 22:05 | <@Ogredude> | I've got the light sensing part already prototyped in the simulator, no problems there http://123d.circuits.io/circuits/698012-greenhouse-brain-smart-lighting |
| 22:06 | | * abudhabi solves his issue by invoking super.paint(g) in his custom paint() routine. |
| 22:08 | <&McMartin> | Oh! |
| 22:08 | <&McMartin> | I think that's standard, yeah |
| 22:08 | <&McMartin> | Man, it's been a long time since I've done custom widgets |
| 22:08 | < abudhabi> | Sort of. |
| 22:08 | < abudhabi> | I sort of solved it, because there are edge cases where the problems persist. |
| 22:09 | < abudhabi> | Calling window.repaint() still gives the wrong result. |
| 22:09 | < abudhabi> | When the custom widget is repainted automatically, such as when I switch tabs in the tabbed pane, it still gets painted wrong. |
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| --- Log closed Fri Apr 03 00:00:59 2015 |