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c++ Programming Glossary: p.yWhy not use pointers for everything in C++? http://stackoverflow.com/questions/1064325/why-not-use-pointers-for-everything-in-c code using it. Why would I do the following Pixel p p.x 2 p.y 5 Coming from a Java world I always write Pixel p new Pixel.. we leak memory. Now consider this void foo Pixel p p.x 2 p.y 5 bar This won't leak memory. Of course in this simple case.. x int y ~Pixel delete x delete y void foo Pixel p p.x 2 p.y 5 bar The Pixel class now internally allocates some heap memory..
http://stackoverflow.com/questions/13014973/quaternion-rotate-to that will align the object's z axis with point p p.x p.y p.z then you will rotate by around axis a . Now we'll find those..
http://stackoverflow.com/questions/19016099/lookup-table-with-constexpr ostream operator std ostream o point const p return o p.x p.y a user defined generator constexpr point my_generator std size_t..
Rotating a point about another point (2D) http://stackoverflow.com/questions/2259476/rotating-a-point-about-another-point-2d float c cos angle translate point back to origin p.x cx p.y cy rotate point float xnew p.x c p.y s float ynew p.x s p.y.. back to origin p.x cx p.y cy rotate point float xnew p.x c p.y s float ynew p.x s p.y c translate point back p.x xnew cx p.y.. cy rotate point float xnew p.x c p.y s float ynew p.x s p.y c translate point back p.x xnew cx p.y ynew cy If the rotation..
Proper Trigonometry For Rotating A Point Around The Origin http://stackoverflow.com/questions/3162643/proper-trigonometry-for-rotating-a-point-around-the-origin float c cos angle translate point back to origin p.x cx p.y cy Which One Is Correct This float xnew p.x c p.y s float ynew.. p.x cx p.y cy Which One Is Correct This float xnew p.x c p.y s float ynew p.x s p.y c Or This float xnew p.x c p.y s float.. Is Correct This float xnew p.x c p.y s float ynew p.x s p.y c Or This float xnew p.x c p.y s float ynew p.x s p.y c translate..
http://stackoverflow.com/questions/4705593/int-vs-const-int double x double y x x y y P2d operator const P2d p x p.x y p.y return this P2d operator const P2d p x p.x y p.y return this.. p x p.x y p.y return this P2d operator const P2d p x p.x y p.y return this struct Rect P2d tl br Rect const P2d tl const P2d..
C++ string parsing (python style) http://stackoverflow.com/questions/536148/c-string-parsing-python-style while getline f str Point p sscanf str.c_str f f f n p.x p.y p.z points.push_back p x y z must be floats. And include #include..
http://stackoverflow.com/questions/6423729/get-current-cursor-position . POINT p if GetCursorPos p cursor position now in p.x and p.y This returns the cursor position relative to screen coordinates... to window coordinates. if ScreenToClient hwnd p p.x and p.y are now relative to hwnd's client area You hide and show the..
New velocity after circle collision http://stackoverflow.com/questions/8429315/new-velocity-after-circle-collision collision is detected as follows double s sqrt p.x a p.x a p.y b p.y b if s r point lies inside circle do nothing else if.. is detected as follows double s sqrt p.x a p.x a p.y b p.y b if s r point lies inside circle do nothing else if s r point..
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