Peter Hosey noticed one such cheap bitmap in FlexTime 1.1: the new pie-chart table header cell. But if you’re a cheap hack like me, you’ve probably got lots of bitmaps around that will need to be revised. The good news is that lots of designers have been using vector-based art for their work for some time, and can probably accommodate the changes pretty easily. This means they either need to be drawn on the fly, or created and saved in a vector-based format. Now that you know how bad the problem is, what’s the solution? In order to prevent our graphics looking like ass, they themselves need to be resolution independent. You’ll have to quit and relaunch your application to see it at the zoomed level. Select “Show User Interface Resolution” from the Tools menu to see the following window: How much like ass? You can get a sneak peek at how well your graphics survive resolution independence by using a little-known feature of the Quartz Debug application (part of developer tools). What this means for developers is that every piece of bitmap graphics in your application is now liable to be zoomed to such a degree that it looks like ass. Resolution Independent UI Release Notes.Apple has a few documents on this that are worth reviewing
EAZYDRAW INDEPENDENT SCALE NOT AVAILABLE MAC OS X
Resolution independence will debut as a user-level feature in Mac OS X (and Windows Vista, as I understand it) giving users the ability to choose the resolution at which they wish to view any graphics on their screen. So what’s the big deal? Can’t we just continue to improve image quality as resolutions increase? We could, except that the limits of resolution are about to be completely blown away. Suddenly the cracks are beginning to show. Look what happens if we quadruple the resolution (caveat, this is from the screen capture, not necessarily from the highest quality available in the MarsEdit bundle): Time marches on, and one day we’re sure to find ourselves struggling to appreciate the relatively low resolution of the MarsEdit icon, too. So, MarsEdit pretty, Resorcerer ugly, right? For now, anyway. Suddenly the System 7 icon looks like crap when forced to participate in this modern world: As monitor sizes grow, the standard sizes for icons and other graphics grow along with them. For instance, icons “looked fine” in Mac System 7 at 32 by 32 pixels, because most monitors were not more than 640 by 480. Over the course of computer history, bitmap graphics have gotten larger to accommodate increasing display resolutions. For the time being, we’re stuck with grids of pixels, because that’s how our monitors and (most) printers work. Vector graphics can scale gracefully to an arbitrary resolution, while bitmap graphics inevitably lose quality.īitmaps specify a graphical image as a grid of colored dots that, when combined at high enough resolution, may create the illusion of a photorealistic image, or a smoothly curved contour. If you know even the slightest thing about computer graphics, you’ll understand that in a resolution independent world, bitmaps are out and vector graphics are in. Resolution independence is the notion that all graphics on a computer display should be zoomable to an arbitrary multiplier without losing quality.
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