def __init__(self, m, K0, Eex2, Eex3, targetCharge2, targetCharge3, MagneticFieldB, axes,c='b'):
#print targetMass, targetCharge
KINEMATICS.__init__(self,m=m, K0=K0, Eex2=Eex2, Eex3=Eex3)
self.LineObj2 = axes.plot([0],[0],c=c)
self.LineObj3 = axes.plot([0],[0],c=c)
self.targetCharge2 = targetCharge2
self.targetCharge3 = targetCharge3
self.MagneticFieldB = MagneticFieldB
