Method SetDrapeEngine

libs/map/routing_manager.cpp:1277–1317

}

void RoutingManager::SetDrapeEngine(ref_ptr<df::DrapeEngine> engine, bool is3dAllowed)
{
  m_drapeEngine.Set(engine);
  if (engine == nullptr)
    return;

  // Apply gps info which was set before drape engine creation.
  if (m_gpsInfoCache != nullptr)
  {
    auto routeMatchingInfo = GetRouteMatchingInfo(*m_gpsInfoCache);
    m_drapeEngine.SafeCall(&df::DrapeEngine::SetGpsInfo, *m_gpsInfoCache, m_routingSession.IsNavigable(),
                           m_routingSession.GetDistanceToNextTurn(), m_routingSession.GetCurrentSpeedLimit(),
                           routeMatchingInfo);
    m_gpsInfoCache.reset();
  }

  vector<string> symbols;
  symbols.reserve(kTransitSymbols.size() * 2);
  for (auto const & typePair : kTransitSymbols)
  {
    symbols.push_back(typePair.second + "-s");
    symbols.push_back(typePair.second + "-m");
  }
  m_drapeEngine.SafeCall(&df::DrapeEngine::RequestSymbolsSize, symbols,
                         [this, is3dAllowed](map<string, m2::PointF> && sizes)
  {
    GetPlatform().RunTask(Platform::Thread::Gui, [this, is3dAllowed, sizes = std::move(sizes)]() mutable
    {
      m_transitSymbolSizes = std::move(sizes);

      // In case of the engine reinitialization recover route.
      if (IsRoutingActive())
      {
        m_routingSession.RouteCall([this](Route const & route) { InsertRoute(route); });

        if (is3dAllowed && m_routingSession.IsFollowing())
          m_drapeEngine.SafeCall(&df::DrapeEngine::EnablePerspective);
      }
    });
  });
}

bool RoutingManager::HasRouteAltitude() const
{