cartographer/cartographer/mapping/map_builder.h

107 lines
3.8 KiB
C++

/*
* Copyright 2016 The Cartographer Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef CARTOGRAPHER_MAPPING_MAP_BUILDER_H_
#define CARTOGRAPHER_MAPPING_MAP_BUILDER_H_
#include <memory>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include "Eigen/Geometry"
#include "cartographer/common/lua_parameter_dictionary.h"
#include "cartographer/common/port.h"
#include "cartographer/common/thread_pool.h"
#include "cartographer/mapping/proto/map_builder_options.pb.h"
#include "cartographer/mapping/proto/submap_visualization.pb.h"
#include "cartographer/mapping/proto/trajectory_builder_options.pb.h"
#include "cartographer/mapping/sparse_pose_graph.h"
#include "cartographer/mapping/submaps.h"
#include "cartographer/mapping/trajectory_builder.h"
#include "cartographer/mapping_2d/sparse_pose_graph.h"
#include "cartographer/mapping_3d/sparse_pose_graph.h"
#include "cartographer/sensor/collator.h"
namespace cartographer {
namespace mapping {
proto::MapBuilderOptions CreateMapBuilderOptions(
common::LuaParameterDictionary* const parameter_dictionary);
// Wires up the complete SLAM stack with TrajectoryBuilders (for local submaps)
// and a SparsePoseGraph for loop closure.
class MapBuilder {
public:
MapBuilder(const proto::MapBuilderOptions& options);
~MapBuilder();
MapBuilder(const MapBuilder&) = delete;
MapBuilder& operator=(const MapBuilder&) = delete;
// Create a new trajectory and return its index.
int AddTrajectoryBuilder(
const std::unordered_set<string>& expected_sensor_ids,
const proto::TrajectoryBuilderOptions& trajectory_options);
// Returns the TrajectoryBuilder corresponding to the specified
// 'trajectory_id'.
mapping::TrajectoryBuilder* GetTrajectoryBuilder(int trajectory_id) const;
// Marks the TrajectoryBuilder corresponding to 'trajectory_id' as finished,
// i.e. no further sensor data is expected.
void FinishTrajectory(int trajectory_id);
// Must only be called if at least one unfinished trajectory exists. Returns
// the ID of the trajectory that needs more data before the MapBuilder is
// unblocked.
int GetBlockingTrajectoryId() const;
// Returns the trajectory ID for 'trajectory'.
int GetTrajectoryId(const mapping::Submaps* trajectory) const;
// Returns the trajectory connectivity.
proto::TrajectoryConnectivity GetTrajectoryConnectivity();
// Fills the SubmapQuery::Response corresponding to 'submap_index' from
// 'trajectory_id'. Returns an error string on failure, or an empty string on
// success.
string SubmapToProto(int trajectory_id, int submap_index,
proto::SubmapQuery::Response* response);
int num_trajectory_builders() const;
mapping::SparsePoseGraph* sparse_pose_graph();
private:
const proto::MapBuilderOptions options_;
common::ThreadPool thread_pool_;
std::unique_ptr<mapping_2d::SparsePoseGraph> sparse_pose_graph_2d_;
std::unique_ptr<mapping_3d::SparsePoseGraph> sparse_pose_graph_3d_;
mapping::SparsePoseGraph* sparse_pose_graph_;
sensor::Collator sensor_collator_;
std::vector<std::unique_ptr<mapping::TrajectoryBuilder>> trajectory_builders_;
std::unordered_map<const mapping::Submaps*, int> trajectory_ids_;
};
} // namespace mapping
} // namespace cartographer
#endif // CARTOGRAPHER_MAPPING_MAP_BUILDER_H_