摘要:
角度转弧度: #define AngleToRadian(angle) (M_PI/180.0f)*angle以正东面为0度起点计算指定角度所对应的圆周上的点的坐标: float radian = AngleToRadian(angle); float x = center.x + cos(radian)*currentAdius; float y = center.y + sin(radian)*currentAdius; CGPoint point = CGPointMake(x, y);以正北面为0度起点计算指定角度所对应的圆周上的点的坐标: float radian = Angle.. 阅读全文