String refAtomsAlphaOnly = "("+getAtomSpec(refAtoms, specType)+" and (altloc '' or altloc 'a'))";
String atomSpec2AlphaOnly = "("+getAtomSpec(atomSpec, specType)+" and (altloc '' or altloc 'a'))";
// pair_fit mobile -> reference
String refAtomsAlphaOnly = "("+getAtomSpec(refAtoms, specType)+" and (altloc '' or altloc 'a'))";
String atomSpec2AlphaOnly = "("+getAtomSpec(atomSpec, specType)+" and (altloc '' or altloc 'a'))";
// pair_fit mobile -> reference