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#include <mbgl/style/conversion/coordinate.hpp>
#include <mbgl/style/conversion_impl.hpp>
namespace mbgl {
namespace style {
namespace conversion {
optional<LatLng> Converter<LatLng>::operator() (const Convertible& value, Error& error) const {
if (!isArray(value) || arrayLength(value) < 2 ) {
error.message = "coordinate array must contain numeric longitude and latitude values";
return nullopt;
}
//Style spec uses GeoJSON convention for specifying coordinates
optional<double> latitude = toDouble(arrayMember(value, 1));
optional<double> longitude = toDouble(arrayMember(value, 0));
if (!latitude || !longitude) {
error.message = "coordinate array must contain numeric longitude and latitude values";
return nullopt;
}
if (*latitude < -90 || *latitude > 90 ){
error.message = "coordinate latitude must be between -90 and 90";
return nullopt;
}
return LatLng(*latitude, *longitude);
}
} // namespace conversion
} // namespace style
} // namespace mbgl
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