the rectangle has a perimeter of 30 cm. 那矩形的周长是30厘米。
Changing the frame rectangle automatically redisplay the receiver without invoking the drawRect: method. 这个中心点是定义在他的父视图坐标系内的。
Duplicate the frame for second frame, unhide some of the hidden rectangles and hide some of the unhidden rectangles. 复制本图层,对隐藏的矩形进行修改,作为第二帧。
Meets GJB2446 Shell Located Microminiature Rectangle Electrical Connector General Specification equal to MIL-C-83513. 符合GJB2446《外壳定位超小型矩形电连接器总规范》(相当于美军标MIL-C-83513);
Puristic cuboids and rectangles in soft pastels, paired with dark areas and a red bottle top – an actual eye catcher. 温和色调下简洁的正方形和矩形,配合着一些模糊的设计,再加上一个红色的瓶盖――一个名副其实的视觉捕捉者。Duplicate the frame for second frame, unhide some of the hidden rectangles and hide some of the unhidden rectangles. 复制本图层,对隐藏的矩形进行修改,作为第二帧。
Puristic cuboids and rectangles in soft pastels, paired with dark areas and a red bottle top – an actual eye catcher. 温和色调下简洁的正方形和矩形,配合着一些模糊的设计,再加上一个红色的瓶盖――一个名副其实的视觉捕捉者。
In Euclidean plane geometry, a rectangle is a quadrilateral with four right angles. It can also be defined as an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4 = 90°). It can also be defined as a parallelogram containing a right angle. A rectangle with four sides of equal length is a square. The term oblong is occasionally used to refer to a non-square rectangle.
A rectangle with vertices ABCD would be denoted as ABCD.