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Map Tiling Algorithm

...c idea of this algorithm is to use a pre-processing step to find all edges and then select the correct smoothing tile according to the shape of the edge. The first step would be to find all edges. In the example below the edge tiles marked with an X are all green tiles with a tan tile as one or mor...
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Fastest way to determine if an integer's square root is an integer

... ~35% faster than your 6bits+Carmack+sqrt code, at least with my CPU (x86) and programming language (C/C++). Your results may vary, especially because I don't know how the Java factor will play out. My approach is threefold: First, filter out obvious answers. This includes negative numbers and ...
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Draw a perfect circle from user's touch

...e, lines, etc, whatever came to his mind). Then he started to draw circles and then he asked me to make it "good circle" (from my understanding: make the drawn circle perfectly round, as we know no matter how stable we try to draw something with our finger on the screen, a circle is never really as...
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What is state-of-the-art for text rendering in OpenGL as of version 4.1? [closed]

...g easily antialiased, which is trivial using a distance-map-textured quad, and evaluating curves in the shader is still computationally much more expensive than necessary. The best trade-off between "fast" and "quality" are still textured quads with a signed distance field texture. It is very sligh...
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What should main() return in C and C++?

...t is the correct (most efficient) way to define the main() function in C and C++ — int main() or void main() — and why? And how about the arguments? If int main() then return 1 or return 0 ? ...
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How to add texture to fill colors in ggplot2

I'm currently using scale_brewer() for fill and these look beautiful in color (on screen and via color printer) but print relatively uniformly as greys when using a black and white printer. I searched the online ggplot2 documentation but didn't see anything about adding textures to fill colors. ...
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When exactly is it leak safe to use (anonymous) inner classes?

I have been reading some articles on memory leaks in Android and watched this interesting video from Google I/O on the subject . ...
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What is referential transparency?

...branch of philosophy that analyzes natural language constructs, statements and arguments based on the methods of logic and mathematics. In other words, it is the closest subject outside computer science to what we call programming language semantics. The philosopher Willard Quine was responsible fo...
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Why would I want stage before committing in Git?

I'm new to version control and I understand that "committing" is essentially creating a backup while updating the new 'current' version of what you're working on. ...
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Cross-browser testing: All major browsers on ONE machine

... Opera Chrome Safari Adobe Flash Player Download summary Sandboxie Part 2: Installation and configuration Internet Explorer Firefox Opera Chrome Safari Developer tools (and shortcuts) Measured set-up time and disk space Time needed per browser (install & ...