Method speedIndex

src/model/FanSystemModel.cpp:644–661

    }

    boost::optional<unsigned> FanSystemModel_Impl::speedIndex(const FanSystemModelSpeed& t_speed) const {
      boost::optional<unsigned> result;

      // We do it with extensibleGroups() (rather than speeds()) and getString to avoid overhead
      // of manipulating actual model objects and speed up the routine
      auto egs = castVector<WorkspaceExtensibleGroup>(extensibleGroups());
      auto flowFraction = toString(t_speed.flowFraction());
      auto it = std::find_if(egs.begin(), egs.end(), [&](const WorkspaceExtensibleGroup& eg) {
        return (eg.getField(OS_Fan_SystemModelExtensibleFields::SpeedFlowFraction).get() == flowFraction);
      });

      // If found, we compute the index by using std::distance between the start of vector and the iterator returned by std::find_if
      if (it != egs.end()) {
        result = std::distance(egs.begin(), it);
      }

      return result;
    }

    std::vector<FanSystemModelSpeed> FanSystemModel_Impl::speeds() const {