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Resize image proportionally with MaxHeight and MaxWidth constraints

...wing scenarios: Is the image smaller than the bounding box? Is the Image and the Bounding Box square? Is the Image square and the bounding box isn't Is the image wider and taller than the bounding box Is the image wider than the bounding box Is the image taller than the bounding box private Image...
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remove None value from a list without removing the 0 value

...mbda x: x is not None, L) -- You could get rid of the lambda using partial and operator.is_not I think, but it's probably not worth it since the list-comp is so much cleaner. – mgilson Apr 19 '13 at 3:36 ...
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How to plot two histograms together in R?

I am using R and I have two data frames: carrots and cucumbers. Each data frame has a single numeric column which lists the length of all measured carrots (total: 100k carrots) and cucumbers (total: 50k cucumbers). ...
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How can I run MongoDB as a Windows service?

... I think if you run it with the --install command line switch, it installs it as a Windows Service. mongod --install It might be worth reading this thread first though. There seems to be some problems with relative/absolute paths when the relevant registry key gets wr...
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How to use NSJSONSerialization

..."id": "2", "name":"Bbb"}] This might give you a clear picture of how to handle it: NSError *e = nil; NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData: data options: NSJSONReadingMutableContainers error: &e]; if (!jsonArray) { NSLog(@"Error parsing JSON: %@", e); } else { for...
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WCF vs ASP.NET Web API [closed]

I've spent a few months trying to grasp the concepts behind WCF and recently I've developed my first WCF service application. ...
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How to create a temporary directory?

I use to create a tempfile , delete it and recreate it as a directory: 4 Answers 4 ...
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How can I start PostgreSQL server on Mac OS X?

I had forgotten to run the initdb command. 33 Answers 33 ...
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Are braces necessary in one-line statements in JavaScript?

...nts could be harmful in JavaScript. I don't remember the reasoning anymore and a Google search did not help much. 20 Answe...
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Can a foreign key be NULL and/or duplicate?

...als. Suppose further that each proposal only has one sales person assigned and one client. So your proposal table would have two foreign keys, one with the client ID and one with the sales rep ID. However, at the time the record is created, a sales rep is not always assigned (because no one is fre...