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How can I determine whether a 2D Point is within a Polygon?
...n points as before, now we need the actual sides. A side is always defined by two points.
side 1: (X1/Y1)-(X2/Y2)
side 2: (X2/Y2)-(X3/Y3)
side 3: (X3/Y3)-(X4/Y4)
:
You need to test the ray against all sides. Consider the ray to be a vector and every side to be a vector. The ray has to hit each si...
What is std::promise?
... via the member function get(), which effectively synchronizes the program by waiting for the result. Alternatively, a future supports wait_for(), which can be used to probe whether or not the result is already available. Futures should be thought of as the asynchronous drop-in replacement for...
“Auth Failed” error with EGit and GitHub
...Press "Save Private Key..." button
to save your private RSA key into
file. By default keys are stored in
SSH2 home directory (see "General"
tab).
That's it! Now you should be able to push your code to GitHub repo.
share
...
What is the most efficient way to create HTML elements using jQuery?
...ed div in jquery has to be added just like in javascript. $('<div>') by itself isn't attached to the DOM until you append() it to something.
– Owen
Nov 29 '08 at 4:44
6
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How to get std::vector pointer to the raw data?
...ds. &something.begin() gives you the address of the iterator returned by begin() (as the compiler warns, this is not technically allowed because something.begin() is an rvalue expression, so its address cannot be taken).
Assuming the container has at least one element in it, you need to get th...
Are Exceptions in C++ really slow
...s the Zero-Cost model exceptions.
The idea is that instead of losing time by setting up a guard and explicitly checking for the presence of exceptions everywhere, the compiler generates a side table that maps any point that may throw an exception (Program Counter) to the a list of handlers. When an...
In C# what is the difference between a destructor and a Finalize method in a class?
... can not call them explicitly in your code as they are called
implicitly by GC. In C# they have same name as the class name preceded
by the ~ sign. Like-
Class MyClass
{
~MyClass()
{
.....
}
}
In VB.NET, destructors are implemented by overriding the Finalize
method of the System.Object...
Change templates in Xcode
How would I change the initial templates created by Xcode when creating a new Cocoa Class.
11 Answers
...
How to send POST request in JSON using HTTPClient in Android?
I'm trying to figure out how to POST JSON from Android by using HTTPClient. I've been trying to figure this out for a while, I have found plenty of examples online, but I cannot get any of them to work. I believe this is because of my lack of JSON/networking knowledge in general. I know there are ...
Get the current language in device
...you please add "Locale.getDefault().toString()", as suggested in a comment by "Tom".
– RenniePet
Sep 18 '14 at 0:01
I'...