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Google Maps V3 - How to calculate the zoom level for a given bounds

...ing zoom level you change to (roughly speaking, do you make it larger or smaller than it currently is?). If you really need to calculate the zoom, rather than store it, this should do the trick: The Mercator projection warps latitude, but any difference in longitude always represents the same frac...
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Lightweight Java Object cache API [closed]

I'm looking for a Java in-memory object caching API. Any recommendations? What solutions have you used in the past? 7 Answe...
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TCP: can two different sockets share a port?

... A server socket listens on a single port. All established client connections on that server are associated with that same listening port on the server side of the connection. An established connection is uniquely identified by the combination of client-side and serv...
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Multiple actions were found that match the request in Web Api

...ur route map is probably something like this: routes.MapHttpRoute( name: "API Default", routeTemplate: "api/{controller}/{id}", defaults: new { id = RouteParameter.Optional }); But in order to have multiple actions with the same http method you need to provide webapi with more information via the...
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Detect If Browser Tab Has Focus

...ct of this, and also the note about telling the user you have paused are really good notes. Thanks. – Fenton Sep 12 '11 at 14:30 7 ...
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C++ valarray vs. vector

I like vectors a lot. They're nifty and fast. But I know this thing called a valarray exists. Why would I use a valarray instead of a vector? I know valarrays have some syntactic sugar, but other than that, when are they useful? ...
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android layout: This tag and its children can be replaced by one and a compound drawable

... Hey look at that, all I had to do was search. stackoverflow.com/a/6671544/1224741 – QED Aug 8 '12 at 1:40 ...
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2D cross-platform game engine for Android and iOS? [closed]

... found it's 2D part with OnGUI() or GUITextures too clumsy. Also, even a smallest game done on Unity3d is at least 10MB download which is just too much for a 2D game. ...
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Using querySelectorAll to retrieve direct children

... Good question. At the time it was asked, a universally-implemented way to do "combinator rooted queries" (as John Resig called them) did not exist. Now the :scope pseudo-class has been introduced. It is not supported on [pre-Chrominum] versions of Edge or IE, but has been s...
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WebRTC vs Websockets: If WebRTC can do Video, Audio, and Data, why do I need Websockets? [closed]

So I'm looking to build a chat app that will allow video, audio, and text. I spent some time researching into Websockets and WebRTC to decide which to use. Since there are plenty of video and audio apps with WebRTC, this sounds like a reasonable choice, but are there other things I should consider? ...