def vec ( self ) : return np . r_ [ self . fx , self . fy , self . cx , self . cy , self . skew , self . height , self . width ]
python 2d array of objects
: obj : numpy . ndarray : Vector representation for this camera .
def vec(self):
        """:obj:`numpy.ndarray` : Vector representation for this camera.
        """
        return np.r_[self.fx, self.fy, self.cx, self.cy, self.skew, self.height, self.width]