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User: jcupitt65

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  1. Re:Why? on Gigapixel Tapestries & Gigadecimal Pi · · Score: 5, Interesting
    You can do very cool stuff with a good picture of the back of a tapestry.

    The colours in tapestries are usually vegetable dyes and they fade very badly with exposure to light. If you go around a museum, the tapestries almost always look dingy and you need to use a lot of imagination to try to picture how they might have originally looked.

    However the back of the tapestry has been kept in the dark and the colours there are still dazzling. So ... if you have a good picture of the front and the back and you can resample the back image to get it to line up with the front to within a knot size, you can use the back colour to "re-tint" the front image and get an excellent visualisation of how the tapestry might have appeared soon after it was woven (you need to take a bit of care with colour management too).

    A friend of mine did this as part of his PhD thesis. I can't find any of his images online (I guess there would be copyright problems), I'll see if I can dig some low-res ones up.

  2. Re:There is more to x86-64 than addressing... on Windows XP X64 Goes Gold · · Score: 1
    Absolutely right. I've been benchmarking this week and on one of our apps (smart sharpening done in plain integer C code, no MMX/whatever) I see:

    32-bit P4 Xeon, 2.5 Ghz == 16.4s
    64-bit P4 Xeon, 3.6 GHz == 5.7s
    64-bit Opteron 850, 2.4 Ghz == 5.2s

    So 64-bitness is worth about a factor of two (very roughly). This is all linux, but I imagine XP would be similar. I can post details if anyone is interested.

  3. Re:My biggest complaint on Hack turns GIMP into Photoshop Look-alike · · Score: 1

    it's apple-drag instead (or maybe ctrl-drag? or alt-drag? one of them anyway).

  4. Re:1.2.. on Mozilla Firefox 1.02 Released · · Score: 4, Informative

    bugzilla explains how to fix it ... see https://bugzilla.mozilla.org/show_bug.cgi?id=17607 9

    - go to about:config
    - right-click and select New/Integer preference
    - make a pref called "privacy.popups.disable_from_plugins"
    - set the value 2

    now plugins are not allowed to make popups. This hasn't been made a public preference, since it is a bit crude and may break some sites. It does fix the flash-popups though.

  5. Re:Ditch the dependencies and deprecated code on Bounties for Gnome Optimization · · Score: 3, Informative
    That's a good idea. There's also a lot of deprecated API (eg. GtkCTree) which can be removed from the system with just a few -Dsomething during configure. You can turn off the GObject run-time type checks with another -Dthing, which helps speed another 10% or so in my experience.

    Bonobo is slowly being removed since GtkUIManager came on the scene. I think gnome-vfs will be around for a while, especially since the new file chooser can plug in to it (I think).

  6. Re:Science Blog on The Return Of The Pop-Up Ad · · Score: 1

    Here's how to block those popups:

    - go to about:config
    - right-click and select New/Integer preference
    - make a pref called "privacy.popups.disable_from_plugins"
    - set the value 2

    Now no plugins can make popups, which may break some sites.

    See https://bugzilla.mozilla.org/show_bug.cgi?id=17607 9 for details.

  7. Re:network transparency on Next-Gen X Window Rendering For Linux · · Score: 1

    Yes, this is all using render, damage and composite, three new X extensions that do the bulk of the work on the server side.

  8. Re:Consenus Only in the Mind of the Beholder on Kyoto Protocol Comes Into Force · · Score: 1
    The article I linked talks about that. They say the consensus is not always wrong, in fact it's usually right.

    • For the true hard-liners, of course, the scientific consensus must, by definition, be wrong. As far as they are concerned the thousands of scientists behind the IPCC models have either been seduced by their own doom-laden narrative or are engaged in a gigantic conspiracy. They say we are faced with what the philosopher of science Thomas Kuhn called a "paradigm problem".

      "Most scientists spend their lives working to shore up the reigning world view - the dominant paradigm - and those who disagree are always much fewer in number," says climatologist Patrick Michaels of the University of Virginia in Charlottesville, a leading proponent of this view. The drive to conformity is accentuated by peer review, which ensures that only papers in support of the paradigm appear in the literature, Michaels says, and by public funding that gives money to research into the prevailing "paradigm of doom". Rebels who challenge prevailing orthodoxies are often proved right, he adds.

      But even if you accept this sceptical view of how science is done, it doesn't mean the orthodoxy is always wrong. We know for sure that human activity is influencing the global environment, even if we don't know by how much. We might still get away with it: the sceptics could be right, and the majority of the world's climate scientists wrong. It would be a lucky break. But how lucky do you feel?

  9. Re:Consenus Only in the Mind of the Beholder on Kyoto Protocol Comes Into Force · · Score: 2, Informative
    Here's a good article from New Scientist (the UK's equivalent to Scientific American, more or less) on Climate change: Menace or myth?.

    There is a scientific consensus, and it doesn't agree with you.

  10. Re:Lack of funding is no reason for failure on Beagle 2 Official Inquiry Released · · Score: 1
    I have a real issue with people claiming the lack of funding was a root cause of failure.

    Maybe we're just arguing semantics, but I think you can certainly say that lack of money was one of the reasons Beagle failed. For example, the air bag system was tested once ... and failed. The design was modified, but they didn't have enough money to do a second test.

  11. Re:Why give up bitmaps on GTK+ to Use Cairo Vector Engine · · Score: 2, Interesting
    You can still use bitmaps if you want. This is more about unifying the rendering API.

    At the moment GTK uses gdk (essentially xlib) to paint widgets, and programs which want to display lines, shapes etc in their application window use GtkCanvas (declare a lot of objects for how you want your screen painted, it gets rendered clientside in tiles, then sent to the screen with XPutImage() or somesuch).

    Cairo should give gtk a single API for drawing both widgets + application which will be (eventually!) hardware accelerated. It's the future.

  12. Re:Lack of rational thinking on Harvard Pres Says Females Naturally Bad at Math · · Score: 1
    Yes, I think there's some truth in that.

    Any healthy community needs diversity. Of course, you see this even within the same person: most of the day my brain's pretty muzzy, but I usually have a clear spell between about 5pm and 7pm (how annoying!). I find I have ideas more in the muzzy state (maybe I'm making broad connections I wouldn't see if I were very focussed?), and I'm able to do something about the ideas (usually dismiss them as rubbish) in the clear state.

    Anyway, you need variety, I think I'm saying.

  13. Re:Lack of rational thinking on Harvard Pres Says Females Naturally Bad at Math · · Score: 2, Insightful
    Most people agree that there are male/female differences, it's whether those differences make you bad at science that's hotly disputed. It also matters that this person said this, because recruitment of female profs has declined sharply during his time in the post.

    My irritation with all these vagely socio-biological arguments is that they are almost always used to justify the status quo. For example, people used to say "men are natural hunters, women are natural home-makers and organisers, therefore it's correct that the man should be the boss and the woman the secretary".

    Anytime you see the word "natural" used in an argument, be very suspicious!

  14. Re:Tor on Novell to port Evolution to Windows · · Score: 1
    I have 500+ items in a list in a win32 gtk app here and it sorts instantly on a 1GHz machine. *shrug*

    Maybe you have some kind of odd pixmap theme set for it?

  15. Re:In other news on Apple Releases Mac Mini · · Score: 1
    Also, did you hear about John Lennon?

    He and Cynthia have split!!!

  16. Re:Firefox at work? on NYTimes Reports on Firefox · · Score: 1
    You can install ff without needing admin rights. Start the standard installer, pick somewhere like Desktop\firefox as the install dir, and ignore the error messages. Works fine!

    Some stuff like flash and java mght not work right without registry changes, but that's (on the whole) a good thing.

  17. Re:Stupidest idea ever. on Lycos Anti-Spam Site Compromised [Updated] · · Score: 1

    not to mention the PCs of innocents which have been compromised as spam-proxies along with the network infrastructures of their ISPs

    The lycos thing does not attack spammers, it attacks the websites linked in spam emails.

    I agree it's not a great idea (no doubt spammers will start adding random http://bbc.co.uk or whatever links to spams), but regular net users should be OK.

  18. Re:I hired one for a week on ZAP Smart Car Approved for Sale in the US · · Score: 1

    sorry, should have said ... UK gallon

  19. I hired one for a week on ZAP Smart Car Approved for Sale in the US · · Score: 5, Interesting
    For a holiday with my missus driving around Southern Germany looking at stuff. It could cruise at 80mph, there was plenty of headroom (I'm 6'4", but had several inches spare over my head), enough room for luggage, it all felt slick and solid. I did have to ensure some scoffing about my lack of manliness from German friends though :-( I calculated fuel efficiency at the end of the week and it was ~67 mpg.

    On the downside because the car is rather high and narrow (think two mopeds bolted together side by side), I'm told they can be scarey in side-winds.

  20. it's a commonly-used GPL toolkit on Virtual Reality Book Overlays · · Score: 4, Insightful

    Haven't seen anyone say this yet, but this is one of many projects based on the GPL ARToolKit. A friend of mine has another project here.

  21. Re:Microsoft's Copland? on Gates Explains Longhorn Delay, Diet · · Score: 1
    Hmm, all gtk2 apps on my machine scale smoothly. The app asks for a 12 point font, pango looks at the screen resolution and picks an appropriate pixel size, gtk2 scales all drawn graphical elements (eg. the arrow next to a combobox) with the font. It even works for pixmap themes: the gtk theme engines will stretch and tile pixmaps when painting widgets.


    Go to the gnome control panel and pick a larger base font, everything should size up nicely (except the button icons, dagnabbit ... coming soon).

  22. Re:Microsoft's Copland? on Gates Explains Longhorn Delay, Diet · · Score: 2, Informative
    On the GUI scaling thing: X has done this for years. Try gimp2 on a 150dpi display and a 75dpi display. The fonts, dialogs, and most of the graphical elements all resize automatically.

    Proper vector graphics would be cool though ... X has cairo (roughly display PDF) and gtk and qt are planning to switch. SVG for icon rendering is available now.

  23. Re:Windows.Forms in Mono on Mono's Cocoa# Underway, GTK# Takes on Windows.Forms · · Score: 1

    You are describing the behaviour of gtk1.2 on windows. The current gtk2.4 is very different. Have you tried gimp2?

  24. Re:Unreal engine physics. on Make Something Unreal Gets Next Phase Winners · · Score: 1
    Q1 and QW had vectoring air control. Try in the low gravity level in the shareware version: jump with a strafe key held down and move the mouse. You can directly control your horizontal movement vector. With a lot of practice you can do a rocketjump to get some speed, then keep hopping and steer around an entire map at 90+ mph.

    Q2 had no air control (I think id thought it was unrealistic). Q3 has limited air control: you can accelerate gently in the direction you point. u2k3 is similar (I think?).

  25. Re:Did they kill "spatial" Nautilus yet? on Feature Preview of Gnome 2.8 · · Score: 3, Informative
    From the interview:
    • There are some small features in CVS that might be interesting though:
      * Visible preference that allows you to disable spatial mode