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Re: Drawing Pixels with NSBezierPath
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Re: Drawing Pixels with NSBezierPath


  • Subject: Re: Drawing Pixels with NSBezierPath
  • From: Steve Sims <email@hidden>
  • Date: Tue, 6 Jul 2004 18:20:48 -0400

On 6 Jul 2004, at 16:52, Shawn Erickson wrote:
Only fall back on doing this if needed because of performance and consider any need to print out or otherwise export the images generated. Finally consider the assumption of 1 pixel per point in the 72 DPI world because that assumption may change in the future.

I second the call to not assume 1 pixel per point and 72DPI. After all, what would happen if you're presented with display with much greater pixel density? Drawing individual pixels then can result in tiny images.

Check out this monitor, for instance:
http://www.viewsonic.com/products/desktopdisplays/lcddisplays/ proseries/vp2290b/

A 22.2 inch display with an astounding 9.2 megapixels - that's 3840x2400, or roughly 5x the pixel density of most LCDs - over 200DPI. The reports I've heard is that this is a great monitor, but the common complaint is that desktop displays are tiny - text and window furniture is drawn so small it's difficult to see. It would make a great deal of sense for a desktop to be rendered at a higher DPI level on screens like this. I would not be surprised if Quartz was capable of drawing at a higher resolution already.

Yes, at $6k it's damn expensive, but other displays are coming that are similarly high resolution - Sony's Librie e-book reader for example has a Philips display that's about 170DPI, and it's a lot cheaper at under $400.

Steve
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  • Follow-Ups:
    • Re: Drawing Pixels with NSBezierPath
      • From: Scott Thompson <email@hidden>
References: 
 >Drawing Pixels with NSBezierPath (From: "Christopher O'Neill" <email@hidden>)
 >Re: Drawing Pixels with NSBezierPath (From: Shaun Wexler <email@hidden>)
 >Re: Drawing Pixels with NSBezierPath (From: Shawn Erickson <email@hidden>)

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