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iPhone - Get Position of UIView within entire UIWindow
...e this:
[aView.superview convertPoint:aView.frame.origin toView:nil];
2014 Edit: Looking at the popularity of Matt__C's comment it seems reasonable to point out that the coordinates...
don't change when rotating the device.
always have their origin in the top left corner of the unrotated screen...
Heatmap in matplotlib with pcolor?
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123
This is late, but here is my python implementation of the flowingdata NBA heatmap.
updated:1/...
MySQL: Order by field size/length
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163
SELECT * FROM TEST ORDER BY LENGTH(description) DESC;
The LENGTH function gives the length o...
How does Rails keep track of which migrations have run for a database?
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Once upon a time, when > was faster than < … Wait, what?
...range of [0, 0.5]. Next frame, you render with GL_GREATER with a range of [1.0, 0.5]. You go back and forth, literally "flipping the sign of Z and the depth test" every frame.
This loses one bit of depth precision, but you didn't have to clear the depth buffer, which once upon a time was a rather s...
Why are Where and Select outperforming just Select?
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131
Select iterates once over the entire set and, for each item, performs a conditional branch (ch...
Hiding the legend in Google Chart
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answered Jan 30 '12 at 18:39
Trevor PesoutTrevor Pesout
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Javadoc @see or {@link}?
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216
The official guidelines on this are pretty clear.
The functional differences are:
{@link} is...
NGINX to reverse proxy websockets AND enable SSL (wss://)?
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189
Just to note that nginx has now support for Websockets on the release 1.3.13. Example of use:
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Regex to match a digit two or four times
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145
There's no specific syntax for that, but there are lots of ways to do it:
(?:\d{4}|\d{2}) ...