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c++ Programming Glossary: angleOpenCV C++/Obj-C: Advanced square detection http://stackoverflow.com/questions/10533233/opencv-c-obj-c-advanced-square-detection maxCosine 0 for int j 2 j 5 j double cosine fabs angle approx j 4 approx j 2 approx j 1 maxCosine MAX maxCosine cosine..
http://stackoverflow.com/questions/1380371/what-are-the-most-widely-used-c-vector-matrix-math-linear-algebra-libraries-a rendering specific routines when compared to GMTL ie Euler angle definitions etc . IMSL Benefits Very complete numeric library...
What is the difference between #include <filename> and #include “filename”? http://stackoverflow.com/questions/21593/what-is-the-difference-between-include-filename-and-include-filename programming languages what is the difference between using angle brackets and using quotes in an include statement as follows..
Rotating a point about another point (2D) http://stackoverflow.com/questions/2259476/rotating-a-point-about-another-point-2d a function like POINT rotate_point float cx float cy float angle POINT p Thanks c algorithm share improve this question .. again. untested POINT rotate_point float cx float cy float angle POINT p float s sin angle float c cos angle translate point.. float cx float cy float angle POINT p float s sin angle float c cos angle translate point back to origin p.x cx p.y..
How to implement the factory pattern in C++ correctly http://stackoverflow.com/questions/5120768/how-to-implement-the-factory-pattern-in-c-correctly I cannot do struct Vec2 Vec2 float x float y Vec2 float angle float magnitude not a valid overload ... My natural way of thinking.. fromLinear float x float y static Vec2 fromPolar float angle float magnitude ... Which instead of constructors leads me to.. the constructor anyway. Vec2 float x float y Vec2 float angle float magnitude not a valid overload There is an easy workaround..
Square detection doesn't find squares http://stackoverflow.com/questions/7731742/square-detection-doesnt-find-squares Square Detection Demo helper function finds a cosine of angle between vectors from pt0 pt1 and from pt0 pt2 double angle Point.. angle between vectors from pt0 pt1 and from pt0 pt2 double angle Point pt1 Point pt2 Point pt0 double dx1 pt1.x pt0.x double.. 0 for int j 2 j 5 j find the maximum cosine of the angle between joint edges double cosine fabs angle approx j 4 approx..
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection http://stackoverflow.com/questions/8667818/opencv-c-obj-c-detecting-a-sheet-of-paper-square-detection processing p Input Output Original image click Code double angle cv Point pt1 cv Point pt2 cv Point pt0 double dx1 pt1.x pt0.x.. maxCosine 0 for int j 2 j 5 j double cosine fabs angle approx j 4 approx j 2 approx j 1 maxCosine MAX maxCosine cosine.. rect cv Rect rect boundingRect cv Mat squares i cv rectangle image rect.tl rect.br cv Scalar 0 255 0 2 8 0 draw rotated rect..
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