Method FindPaths

libs/search/geocoder.cpp:1628–1745

}

void Geocoder::FindPaths(BaseContext & ctx)
{
  auto const & layers = ctx.m_layers;
  if (layers.empty())
    return;

  FeaturesLayer cityLayer;
  vector<uint32_t> cityFeature;

  if (ctx.m_city)
  {
    bool hasBuilding = false;
    bool hasStreetOrSuburb = false;
    for (auto const & l : layers)
    {
      switch (l.m_type)
      {
      case Model::TYPE_BUILDING:
        // Same condition as in MatchPOIsAndBuildings.
        hasBuilding = l.m_sortedFeatures->empty() || house_numbers::LooksLikeHouseNumberStrict(l.m_subQuery);
        break;
      case Model::TYPE_STREET:
      case Model::TYPE_SUBURB: hasStreetOrSuburb = true; break;
      case Model::TYPE_CITY:
      case Model::TYPE_COMPLEX_POI:
      case Model::TYPE_COUNT:
      case Model::TYPE_COUNTRY:
      case Model::TYPE_STATE:
      case Model::TYPE_SUBPOI:
      case Model::TYPE_UNCLASSIFIED:
      case Model::TYPE_VILLAGE:
        // TODO: These types could be processed in a different way in the future...
        break;
      }
    }

    if (hasBuilding && !hasStreetOrSuburb)
    {
      InitLayer(Model::TYPE_CITY, ctx.m_city->m_tokenRange, cityLayer);

      // Convert Feature's index, because a city maybe from World, but should match with Country MWM index.
      if (uint32_t fid = MatchWorld2Country(ctx.m_city->m_featureId); fid != kInvalidFeatureId)
        cityFeature.push_back(fid);
      cityLayer.m_sortedFeatures = &cityFeature;
      cityLayer.m_getFeatures = [this, &ctx]()
      { return RetrieveGeometryFeatures(*m_context, ctx.m_city->m_rect, RectId::Locality); };
    }
  }

  // Layers ordered by search type.
  vector<FeaturesLayer const *> sortedLayers;
  sortedLayers.reserve(layers.size() + 1);
  for (auto const & layer : layers)
    sortedLayers.push_back(&layer);

  if (!cityFeature.empty())
    sortedLayers.push_back(&cityLayer);