void CheckElement(TElement const & em)
{
if (em.type != TElement::EntityType::Node)
return;
uint64_t population = 1;
bool town = false;
bool capital = false;
int admin_level = numeric_limits<int>::max();
for (auto const & tag : em.Tags())
{
string key(tag.key), value(tag.value);
if (key == "population")
{
if (!strings::to_uint64(value, population))
continue;
}
else if (key == "admin_level")
{
if (!strings::to_int(value, admin_level))
continue;
}
else if (key == "capital" && value == "yes")
{
capital = true;
}
else if (key == "place" && (value == "city" || value == "town"))
{
town = true;
}
}
// Ignore regional capitals.
if (capital && admin_level > 2)
capital = false;
if (town || capital)
m_records.emplace_back(em.lat, em.lon, em.id, capital, population);
}
