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c++ Programming Glossary: polygonOpenCV C++/Obj-C: Advanced square detection http://stackoverflow.com/questions/10533233/opencv-c-obj-c-advanced-square-detection filter these candidates by area or how square like the polygon is. EDIT All these answers with code and images were making..
Rotating a point about another point (2D) http://stackoverflow.com/questions/2259476/rotating-a-point-about-another-point-2d card is under the mouse. To do this I thought of doing a polygon collision test. I'm just not sure how to rotate the 4 points.. sure how to rotate the 4 points on the card to make up the polygon. I basically need to do the same operation as Allegro. for example..
Finding the centroid of a polygon? http://stackoverflow.com/questions/2792443/finding-the-centroid-of-a-polygon the centroid of a polygon I have tried for each vertex add to total divide by number.. center because I'm relying on the center to scale a polygon. I want to scale my polygons so I may put a border around them... on the center to scale a polygon. I want to scale my polygons so I may put a border around them. What is the best way to..
Edges on polygon outlines not always correct http://stackoverflow.com/questions/3039026/edges-on-polygon-outlines-not-always-correct on polygon outlines not always correct I'm using the algorithm below to..
http://stackoverflow.com/questions/409348/iteration-over-vector-in-c two code fragments this one works fine for unsigned i 0 i polygon.size i sum polygon i and this one for int i 0 i polygon.size.. this one works fine for unsigned i 0 i polygon.size i sum polygon i and this one for int i 0 i polygon.size i sum polygon i which.. i polygon.size i sum polygon i and this one for int i 0 i polygon.size i sum polygon i which generates warning comparison between..
http://stackoverflow.com/questions/7946383/using-roi-in-opencv which tells you a given pixel belongs on not to a polygon. So you can write something like for i 0 i height i for j 0.. doc tutorials imgproc shapedescriptors point_polygon_test point_polygon_test.html#point polygon test Another faster.. imgproc shapedescriptors point_polygon_test point_polygon_test.html#point polygon test Another faster option is the one..
Area of rectangle-rectangle intersection http://stackoverflow.com/questions/8011267/area-of-rectangle-rectangle-intersection and the answer could be nothing a point line segment or a polygon with 3 8 sides. The usual way to do this 2d boolean operation.. way. Now that you have the vertices of the intersection polygon you can use the surveyor's formula to get the area. Some of.. inside the other or they are disjoint you can use point in polygon checks to figure this out. See the Wikipedia article on polygons..
Glew problems, unresolved externals http://stackoverflow.com/questions/11059971/glew-problems-unresolved-externals correction glEnable GL_TEXTURE_2D Texture mapping ON glPolygonMode GL_FRONT_AND_BACK GL_FILL Polygon rasterization mode polygon.. Texture mapping ON glPolygonMode GL_FRONT_AND_BACK GL_FILL Polygon rasterization mode polygon filled glEnable GL_CULL_FACE Enable..
Cuda version not working while serial working http://stackoverflow.com/questions/13630817/cuda-version-not-working-while-serial-working M 0.5 C D return A dot A M D C dot B A D C B A class Polygon public __device__ Polygon nbpts 0 __device__ void addPts Point2D.. A M D C dot B A D C B A class Polygon public __device__ Polygon nbpts 0 __device__ void addPts Point2D pt pts nbpts pt nbpts.. void addPts Point2D pt pts nbpts pt nbpts __device__ Polygon operator const Polygon rhs nbpts rhs.nbpts dummy rhs.dummy memcpy..
When to mark a function in C++ as a virtual? http://stackoverflow.com/questions/8298041/when-to-mark-a-function-in-c-as-a-virtual dispatched based on the object's static type. So the code Polygon p new Triangle p area provided that area is a non virtual function..
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