Function makeRouteLegs

src/engine/api/json_factory.cpp:284–316

}

util::json::Array makeRouteLegs(std::vector<guidance::RouteLeg> legs,
                                std::vector<util::json::Value> leg_geometries,
                                std::vector<util::json::Value> step_geometries,
                                std::vector<util::json::Object> annotations)
{
    util::json::Array json_legs;
    auto step_geometry_iter = step_geometries.begin();
    for (const auto idx : util::irange<std::size_t>(0UL, legs.size()))
    {
        auto leg = std::move(legs[idx]);
        util::json::Array json_steps;
        json_steps.values.reserve(leg.steps.size());
        std::transform(std::make_move_iterator(leg.steps.begin()),
                       std::make_move_iterator(leg.steps.end()),
                       std::back_inserter(json_steps.values),
                       [&step_geometry_iter](guidance::RouteStep step) {
                           return makeRouteStep(std::move(step), std::move(*step_geometry_iter++));
                       });
        std::optional<util::json::Object> annotation;
        std::optional<util::json::Value> leg_geometry;
        if (leg_geometries.size() > 0)
        {
            leg_geometry = std::move(leg_geometries[idx]);
        }
        if (annotations.size() > 0)
        {
            annotation = std::move(annotations[idx]);
        }
        json_legs.values.push_back(makeRouteLeg(
            std::move(leg), std::move(json_steps), std::move(leg_geometry), std::move(annotation)));
    }
    return json_legs;
}
} // namespace osrm::engine::api::json