buildMaps method
Implementation
void buildMaps(String caller) {
flowC('-- building Helsinki maps c: $caller --', pB);
helsinkiClayM.addAll({
'Attractions': attractionM,
'outdoor': outdoorM,
'helsinkiPaths': helsinkiPathsM,
'seasons': seasonM,
'events': eventM
});
flowC('-- building Helsinki maps done --', pB);
}