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When I realized we're only a resolution doubling or two away from being beyond the limits of human visual perception, I realized why the much-discussed Resoluti

When I realized we're only a resolution doubling or two away from being beyond the limits of human visual perception, I realized why the much-discussed Resolution Independence feature keeps not making it into each release of Mac OS X.

dcurtis 17y ago
I think it's funny how no one has noticed that the iPhone/iPad SDK essentially has resolution independence built-in. All the Interface Builder default controls are vectorized and can scale beautifully.
- Zev 17y ago
  Except that if you want to use an image (say, on a button), you're still stuck with rasterized types. The only way to have resolution independence for buttons would be to use custom Quartz drawing. There's no SVG or no PDF support in UIImage; the only part of the SDK that supports SVG is UIWebView. And Quartz PDF support is more suited for displaying pages of PDF's, not small images in a button.
  - DLWormwood 17y ago
    There's no SVG or no PDF support in UIImage; the only part of the SDK that supports SVG is UIWebView. And Quartz PDF support is more suited for displaying pages of PDF's, not small images in a button. This. I'm currently working on an iP* app, and I had to roll my own UIView class to handle PDF pages to provide vector imaging without resorting to a heavyweight web view.
arebop 17y ago
I think we're not very close. This discussion is about a 162 dpi display, so quadrupling that to 648 or quadrupling on two dimensions gets us to 2592 dpi. That's the right ballpark [1], but only on iPhone-sized devices. The iPad is 132 dpi [2], about 10% better than a typical CRT from a decade ago [3]. MacBook Pros recently got the first resolution increase (36%, to about 115 dpi) in about 5 years. At that rate it will be more than 20 years before we reach the limits of human visual perception on large displays. [1] http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=00002G http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0... [2] http://www.apple.com/ipad/specs/ http://www.apple.com/ipad/specs/ [3] http://viewsonic.com.pk/pdf/us_eng/products/pf77.pdf http://viewsonic.com.pk/pdf/us_eng/products/pf77.pdf

dcurtis 17y ago

I think it's funny how no one has noticed that the iPhone/iPad SDK essentially has resolution independence built-in. All the Interface Builder default controls are vectorized and can scale beautifully.

Zev 17y ago
Except that if you want to use an image (say, on a button), you're still stuck with rasterized types. The only way to have resolution independence for buttons would be to use custom Quartz drawing. There's no SVG or no PDF support in UIImage; the only part of the SDK that supports SVG is UIWebView. And Quartz PDF support is more suited for displaying pages of PDF's, not small images in a button.
- DLWormwood 17y ago
  There's no SVG or no PDF support in UIImage; the only part of the SDK that supports SVG is UIWebView. And Quartz PDF support is more suited for displaying pages of PDF's, not small images in a button. This. I'm currently working on an iP* app, and I had to roll my own UIView class to handle PDF pages to provide vector imaging without resorting to a heavyweight web view.

arebop 17y ago

I think we're not very close. This discussion is about a 162 dpi display, so quadrupling that to 648 or quadrupling on two dimensions gets us to 2592 dpi. That's the right ballpark [1], but only on iPhone-sized devices. The iPad is 132 dpi [2], about 10% better than a typical CRT from a decade ago [3]. MacBook Pros recently got the first resolution increase (36%, to about 115 dpi) in about 5 years. At that rate it will be more than 20 years before we reach the limits of human visual perception on large displays. [1] http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=00002G http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0... [2] http://www.apple.com/ipad/specs/ http://www.apple.com/ipad/specs/ [3] http://viewsonic.com.pk/pdf/us_eng/products/pf77.pdf http://viewsonic.com.pk/pdf/us_eng/products/pf77.pdf