// Gets double value or zero.
inline double getValue(key_type keyId,
double size = 1,
const utymap::GeoCoordinate& coordinate = GeoCoordinate()) const
{
if (!has(keyId))
return 0;
auto declaration = get(keyId);
auto rawValue = declaration->value();
char dimen = (*rawValue)[rawValue->size() - 1];
// in meters
if (dimen == 'm' && coordinate.isValid()) {
double value = std::stod(rawValue->substr(0, rawValue->size() - 1));
return utymap::utils::GeoUtils::getOffset(coordinate, value);
}
// relative to size
if (dimen == '%') {
double value = std::stod(rawValue->substr(0, rawValue->size() - 1));
return size * value * 0.01;
}
return declaration->isEval()
? declaration->evaluate<double>(tags_, stringTable_)
: std::stod(*rawValue);
}
T evaluate(const std::vector<utymap::entities::Tag> &tags,
const utymap::index::StringTable &stringTable) const {
if (!isEval())
throw utymap::MapCssException("Cannot evaluate raw value.");
return StyleEvaluator::evaluate<T>(*tree_, tags, stringTable);
}
// Gets string by given key. Empty string by default
inline std::shared_ptr<std::string> getString(key_type keyId) const
{
if (!has(keyId))
return std::make_shared<std::string>("");
auto declaration = get(keyId);
return declaration->isEval()
? std::make_shared<std::string>(declaration->evaluate<std::string>(tags_, stringTable_))
: declaration->value();
}
