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Algorithm to detect intersection of two rectangles?
...rtices, e.g.
edge = v(n) - v(n-1)
You can get a perpendicular to this by rotating it by 90°. In 2D this is easy as:
rotated.x = -unrotated.y
rotated.y = unrotated.x
So no trigonometry or slopes involved. Normalizing the vector to unit-length is not required either.
If you want to test...
Which is better: … or …
...registered in 2006 is intended to replace text/javascript and is supported by current versions of all the major browsers (including Internet Explorer 9). A quote from the relevant RFC:
This document thus defines text/javascript and text/ecmascript but marks them as "obsolete". Use of experiment...
List all the files that ever existed in a Git repository
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--diff-filter=A ignores files that were created by copying an already existing file, so adding it may not always be what you want.
– cmbuckley
May 31 '18 at 14:21
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VS2012 return to a normal TFS checkin window?
...is merged within the Team Explorer, the Solution Explorer allows filtering by what is pending to be checked in. In addition Open Files filter could also be applied. When the Pending Changes filter is applied, all or some of the files could be selected and right clicked and then there is an option to...
Check if all values of array are equal
...) method tests whether all elements in the array pass the test implemented by the provided function.
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Convert a RGB Color Value to a Hexadecimal String
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This is an adapted version of the answer given by Vivien Barousse with the update from Vulcan applied. In this example I use sliders to dynamically retreive the RGB values from three sliders and display that color in a rectangle. Then in method toHex() I use the values to...
Android Emulator: Installation error: INSTALL_FAILED_VERSION_DOWNGRADE
...om an older SDK, and it seems a Softkeyboard example is already installed (by default?!) in the emulator devices (but in a different, later version). After renaming my application everything worked as expected...
– ndbd
Dec 10 '12 at 23:19
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CSS media queries: max-width OR max-height
...: 16/9)
Code snippets and information derived from:
CSS media queries by Mozilla Contributors (licensed under CC-BY-SA 2.5). Some code samples were used with minor alterations to (hopefully) increase clarity of explanation.
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SSH to Elastic Beanstalk instance
...astic Beanstalk Application
If you haven't made a key pair yet, make one by clicking Key Pairs below Security Group in the ec2 tab.
In the AWS console, open the Elastic Beanstalk tab.
Select the relevant region.
Select relevant Environment
Select Configurations in left pane.
Select Security.
Under...
Why does Eclipse complain about @Override on interface methods?
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Using the @Override annotation on methods that implement those declared by an interface is only valid from Java 6 onward. It's an error in Java 5.
Make sure that your IDE projects are setup to use a Java 6 JRE, and that the "source compatibility" is set to 1.6 or greater:
Open the Window > ...