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How can I determine whether a 2D Point is within a Polygon?
... case is rather rare in practice anyway because of floating point rounding errors; better code would probably not test for == 0.0f but instead for something like < epsilon, where epsilon is a rather small number.
If you need to test a larger number of points, you can certainly speed up the whole...
Best way to change the background color for an NSView
...t—it won't composite on top of any ancestor views. For fills with a partially- (or fully-)transparent color, use NSRectFillUsingOperation developer.apple.com/mac/library/documentation/Cocoa/Reference/… with the NSCompositeSourceOver operation.
– Peter Hosey
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Bash set +x without it being printed
...on't work; and with a semicolon but without spaces to the braces, a syntax error will be raised.
– sdaau
Feb 28 '14 at 8:28
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How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
..., run:
$ java -d64 -version
If it's not a 64-bit JVM, you'll get this:
Error: This Java instance does not support a 64-bit JVM.
Please install the desired version.
Similarly, to check for a 32-bit JVM, run:
$ java -d32 -version
If it's not a 32-bit JVM, you'll get this:
Error: This Java in...
C# Test if user has write access to a folder
I need to test if a user can write to a folder before actually attempting to do so.
18 Answers
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How to replace master branch in Git, entirely, from another branch? [duplicate]
...s for the detailed response, when I run 'git push remote :master' I get an error - 'remote' does not appear to be a git repository.
– Jason
May 19 '10 at 4:02
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What is function overloading and overriding in php?
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edited Nov 11 '13 at 7:05
answered Jan 24 '13 at 13:38
s...
How to use `subprocess` command with pipes
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Don't forget, error subprocess.CalledProcessError: Command '('grep', 'process_name')' returned non-zero exit status 1 just means that nothing was found by grep, so it's normal behaviour.
– Serge
Jan 2...
How to format current time using a yyyyMMddHHmmss format?
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acturally the golang format is very strange. why not use the yyyymmddHHiiss style , but use the ""2006/01/02/15/04/05", I have not get it the real reason
– Kewin
May 10 '16 at 14:32
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Codesign error: Certificate identity appearing twice
CodeSign error: Certificate identity 'iPhone Developer: XXXX (12345678)' appears more than once in the keychain. The codesign tool requires there only be one.
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