public Map<TileCoord, List<List<CoordinateSequence>>> getTileData() {
    return tileContents;
  }
Returns every tile that this geometry touches, and the partial geometry contained on that tile that can be
reassembled using {@link GeometryCoordinateSequences}.
planetiler-core/src/main/java/com/onthegomap/planetiler/render/TiledGeometry.java