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It is a bit like the perfect self-contained hemispherical world of Truman Show, but in real life … and times four.

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Last week, I met up with some folks who are building some amazing things with public data.

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Our Core Animation book should be available by the end of the year. Go ahead and pre-order it now at Amazon if you would like .

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Retrieving a pixel alpha value for a UIImage

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I'm going to copy/paste my response to the same question elsewhere:

There isn't a simple class method to do this, but there is a function that you can use to get the desired results:

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We present a system that composes a realistic picture from a simple freehand sketch annotated with text labels.

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The code lets you post images from your clipboard directly to the webserver to avoid the need to go through Photoshop or another image application.

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how to move/troubleshoot SSL certificates

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