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The purpose of Model View Projection Matrix
...u think of it deeply, you'll realise that eventhough the transformation is based on an object's origin (i.e. single point), all the vertices of the object (mesh/model formally) will undergo the transformation i.e. all 1000 vertices will be multiplied by the model matrix. Hence your point isn't well-...
Some questions about Automatic Reference Counting in iOS5 SDK
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@Brad The install base for iOS4 is already more than 95%. I think it's save to drop iOS3 support anyway.
– Henrik P. Hessel
Jun 20 '11 at 22:01
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Is it possible to figure out the parameter type and return type of a lambda?
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Funny, I've just written a function_traits implementation based on Specializing a template on a lambda in C++0x which can give the parameter types. The trick, as described in the answer in that question, is to use the decltype of the lambda's operator().
template <typename T&g...
How do I provide custom cast support for my class?
..., why, the compiler only looks for implicit/explicit casts at compile time based upon their compiled type. In this case the compiler sees name as an object rather than string, and thus doesn't use Role's overloaded operator.
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How do I use Node.js Crypto to create a HMAC-SHA1 hash?
...out format:
hmac.setEncoding('hex');
//or also commonly: hmac.setEncoding('base64');
// callback is attached as listener to stream's finish event:
hmac.end(text, function () {
hash = hmac.read();
//...do something with the hash...
});
More formally, if you wish, the line
hmac.end(text, f...
C# DLL config file
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Background: I want to have my DAL.dll to have its own config file for database and DAL settings. I also need the app.config for Enterprise Library and its own configurations. So I need both the app.config and dll.config.
What I did not wanted to do is pass-through every property/setting from the a...
Getting individual colors from a color map in matplotlib
...at value, we can do
rgba = cmap(0.5,bytes=True)
So to simplify the code based on answer from Ffisegydd, the code would be like this:
#import colormap
from matplotlib import cm
#normalize item number values to colormap
norm = matplotlib.colors.Normalize(vmin=0, vmax=1000)
#colormap possible val...
How do you test functions and closures for equality?
...safeBitCast between types of different sizes. The idea is to build a event based system but the removeEventListener method should be able to check the function pointers.
– freezing_
Jan 28 '15 at 21:19
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iOS app error - Can't add self as subview
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I am speculating based on something similar that I debugged recently...
if you push (or pop) a view controller with Animated:YES it doesn't complete right away, and bad things happen if you do another push or pop before the animation complete...
After array_filter(), how can I reset the keys to go in numerical order starting at 0
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array_filter() behaves exactly like you'd expect based on what it says in the manual: php.net/manual/en/function.array-filter.php "If no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed." And it should be common knowledg...