OS X describes display size in points, not pixels.

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OS X describes display size in points, not pixels.

Postby pinkbaby » Fri Dec 28, 2012 5:21 am

OS X describes display size in points, not pixels. A place is a unit in user space, just before any transformations around the space. Because, on a high-resolution display, you will find four onscreen pixels for each point, points can be expressed as floating-point values. Values that are integers in standard resolution, such as mouse coordinates, are floating-point values on a high-resolution display, allowing for greater precision for such things as graphics alignment.
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