OpenCV编程-> CvBox2D解析

typedef struct CvBox2D {     CvPoint2D32f center;  /* Center of the box.                          */  中心点（x,y）     CvSize2D32f  size;    /* Box width and length.                       */  尺度（width，height）     float angle;          /* Angle between the horizontal axis           */  位移长度                            /* and the first side (i.e. length) in degrees */ } CvBox2D;

cvRectangle(image,cvPoint(track_box.center.x-20,track_box.center.y-20),cvPoint(track_box.center.x+20,track_box.center.y+20),CV_RGB(255,0,0), 3, CV_AA, 0 );

cvEllipseBox( image, track_box, CV_RGB(255,0,0), 3, CV_AA, 0 );