Method GetMatchingAreaFeatureFromOSM

libs/editor/changeset_wrapper.cpp:192–230

}

editor::XMLFeature ChangesetWrapper::GetMatchingAreaFeatureFromOSM(std::vector<m2::PointD> const & geometry)
{
  auto constexpr kSamplePointsCount = 3;
  bool hasRelation = false;
  // Try several points in case of poor osm response.
  for (auto const & pt : NaiveSample(geometry, kSamplePointsCount))
  {
    ms::LatLon const ll = mercator::ToLatLon(pt);
    pugi::xml_document doc;
    // Throws!
    LoadXmlFromOSM(ll, doc);

    if (doc.select_node("osm/relation"))
    {
      auto const rect = GetBoundingRect(geometry);
      LoadXmlFromOSM(ms::LatLon(rect.minY(), rect.minX()), ms::LatLon(rect.maxY(), rect.maxX()), doc);
      hasRelation = true;
    }

    pugi::xml_node const bestWayOrRelation = matcher::GetBestOsmWayOrRelation(doc, geometry);
    if (!bestWayOrRelation)
    {
      if (hasRelation)
        break;
      continue;
    }

    if (!OsmFeatureHasTags(bestWayOrRelation))
    {
      std::ostringstream sstr;
      bestWayOrRelation.print(sstr);
      LOG(LDEBUG, ("The matched object has no tags", sstr.str()));
      MYTHROW(EmptyFeatureException, ("The matched object has no tags"));
    }

    return {bestWayOrRelation};
  }
  MYTHROW(OsmObjectWasDeletedException, ("OSM does not have any matching way for feature"));
}

void ChangesetWrapper::Create(editor::XMLFeature node)
{