public static CoordinateSequence coordinateSequence(double... coords) {
    return new PackedCoordinateSequence.Double(coords, 2, 0);
  }
Returns a {@link CoordinateSequence} from a list of {@code x, y, x, y, ...} coordinates.
planetiler-core/src/main/java/com/onthegomap/planetiler/geo/GeoUtils.java