22 #ifndef CLASSIC_VacuumRep_HH
23 #define CLASSIC_VacuumRep_HH
virtual Channel * getChannel(const std::string &aKey, bool=false)
Construct a read/write channel.
PlanarArcGeometry geometry
void operator=(const VacuumRep &)
virtual ElementBase * clone() const
Return clone.
virtual PlanarArcGeometry & getGeometry()
Get geometry.
virtual NullField & getField()
Get field.
A simple arc in the XZ plane.
Abstract interface for read/write access to variable.
A zero electromagnetic field.