public double decodeLongitude(long rawLongitude) {
    return COORDINATE_SCALING_FACTOR * (coordLongitudeOffset + (coordGranularity * rawLongitude));
  }
Decodes a raw longitude value into degrees.
<p>

@param rawLongitude The PBF encoded value.
@return The longitude in degrees.
planetiler-core/src/main/java/com/onthegomap/planetiler/reader/osm/PbfFieldDecoder.java