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Circle line-segment collision detection algorithm?
...
(x - h)2 + (y - k)2 = r2
(h,k) = center of circle.
Note: We've simplified the problem to 2D here, the solution we get applies also in 3D
to get:
Expand
x2 - 2xh + h2 + y2 - 2yk + k2 - r2 = 0
Plug
x = ex + tdx
y = ey + tdy
( ex + tdx )2 - 2( ex + tdx )h + h2 +
( ey + tdy )2 - 2( ey + tdy ...
Retrieve filename from file descriptor in C
...ll give you the name of the file as it was when it was opened — however, if the file was moved or deleted since then, it may no longer be accurate (although Linux can track renames in some cases). To verify, stat the filename given and fstat the fd you have, and make sure st_dev and st_ino are the...
Android: why is there no maxHeight for a View?
...ults needed for my layout. And it also addresses the comment by madhu.
If some layout present below the scrollview then this trick wont work – madhu Mar 5 at 4:36
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Checking if an instance's class implements an interface?
Given a class instance, is it possible to determine if it implements a particular interface? As far as I know, there isn't a built-in function to do this directly. What options do I have (if any)?
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What is the purpose of “return await” in C#?
...case when return in normal method and return await in async method behave differently: when combined with using (or, more generally, any return await in a try block).
Consider these two versions of a method:
Task<SomeResult> DoSomethingAsync()
{
using (var foo = new Foo())
{
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How often to commit changes to source control? [closed]
...n 15-60 minutes. Sometimes it could be longer, but I always try to checkin if I have a lot of code changes that I wouldn't want to rewrite in case of failure. I also usually make sure my code compiles and I check-in at the end of the work day before I go home.
I wouldn't worry about making "too man...
CA2202, how to solve this case
... return result.ToArray();
}
finally
{
if (memoryStream != null)
memoryStream.Dispose();
if (cryptograph != null)
cryptograph.Dispose();
if (cryptoStream != null)
cryptoStream.Dispose();
...
Servlet for serving static content
I deploy a webapp on two different containers (Tomcat and Jetty), but their default servlets for serving the static content have a different way of handling the URL structure I want to use ( details ).
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Find out if string ends with another string in C++
How can I find out if a string ends with another string in C++?
20 Answers
20
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How to check if running in Cygwin, Mac or Linux?
...that is used both on Windows/Cygwin and Mac and Linux. It needs slightly different variables for each versions.
11 Answers...