matlab下绘图(绘矩形)的小程序，适合初学者学习参考-This is a function to draw a rectangle given the center, width and height, and the rotation angle.

VS2010中opencv实现自己画有角度的矩形，并用最小外接矩形算法，求矩形的几何信息，中心点，长宽，角度等-VS2010 in opencv realize their painting angled rectangle and use the minimum bounding rectangle algorithm, seeking a rectangular geometry, center, length and width, angle and so on. .