StructureMembers.Member idMember = members.findMember(ID);
int n = (int) as.getSize();
for (int i=0; i<n; i++) {
StructureData sdata = as.getStructureData(i);
double lat = sdata.convertScalarDouble(latMember);
double lon = sdata.convertScalarDouble(lonMember);
double alt = sdata.convertScalarDouble(altMember);
int id = sdata.getScalarInt(idMember);
StationImpl s = new StationImpl(Integer.toString(id), "Station"+i,lat, lon, alt);