/* See description in header file. */
void GeographicPolylineLayer::GetTile(TileKeyPtr tileKey,
                                      TileKeyPtr convertedTileKey,
                                      AsyncTileRequestWithRequestPtr callback,
                                      uint32 priority,
                                      bool cachedOnly)
{
    // TODO: comment out
    // don't get tile and see if memory is down
    return;

    if (!callback)
    {
        return;
    }

    NB_Error error = NE_OK;
    do
    {
        //@todo: do we need cache ???
        if (cachedOnly || !m_tileAvaiable)
        {
            error = NE_NOENT;
            break;
        }

        DataStreamPtr data;
        error = m_tileGenerator->GenerateTileData(convertedTileKey, data);
        if (error != NE_OK)