opencv 3.0 旋转矩形 RotatedRect

旋转矩形，不多解释。很好懂

旋转矩形的绘图没有现成的函数，只能画线的方式完成。

    Mat image(240, 320, CV_8U, Scalar(0));    RotatedRect rRect = RotatedRect(Point2f(100,100), Size2f(100,50), 30);    Point2f vertices[4];    rRect.points(vertices);    for (int i = 0; i < 4; i++)        line(image, vertices[i], vertices[(i+1)%4], Scalar(255));    Rect bRect = rRect.boundingRect();    rectangle(image, bRect, Scalar(128));    imshow("rectangles", image);    waitKey(0);