None
Reimplemented in space, lens, aperture, and mirror.
Definition at line 71 of file abcd_optics.py.
00071 : 00072 if tagstr is not None: 00073 self.tag=tagstr 00074 else: 00075 self.tag="" 00076 self.mat=abcd 00077 self.qparm=None 00078 def __str__(self):