Definition at line 206 of file general_optics.py. 00206 : 00207 "find the distance to the next waist on either of our principal axes. If the number is negative, we are past the waist." 00208 theta, qx, qy=self.q_moments() 00209 qxr=qx.real 00210 qyr=qy.real 00211 if qxr*qyr < 0: 00212 return -min((qxr,qyr)) #one is negative, use it 00213 else: 00214 return -max((qxr, qyr)) #the least negative one is the first waist, or no waist if both positive 00215 def rwstr(self, qi):
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1.5.4