Pulls out node.h/cc (#189)

master
Damon Kohler 2016-11-25 14:49:42 +01:00 committed by GitHub
parent d5652c6985
commit 94fc589141
5 changed files with 415 additions and 350 deletions

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@ -46,6 +46,23 @@ google_library(msg_conversion
time_conversion
)
google_library(node
USES_CARTOGRAPHER
USES_EIGEN
USES_GLOG
SRCS
node.cc
HDRS
node.h
DEPENDS
map_builder_bridge
msg_conversion
node_options
sensor_bridge
tf_bridge
time_conversion
)
google_library(node_options
USES_CARTOGRAPHER
USES_GLOG
@ -137,19 +154,11 @@ google_binary(cartographer_assets_writer
google_binary(cartographer_node
USES_CARTOGRAPHER
USES_EIGEN
USES_GFLAGS
USES_GLOG
SRCS
node_main.cc
DEPENDS
map_builder_bridge
msg_conversion
node_options
node
ros_log_sink
sensor_bridge
tf_bridge
time_conversion
)
install(TARGETS cartographer_node

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@ -14,6 +14,9 @@
* limitations under the License.
*/
#ifndef CARTOGRAPHER_ROS_MAP_BUILDER_BRIDGE_H_
#define CARTOGRAPHER_ROS_MAP_BUILDER_BRIDGE_H_
#include <memory>
#include <unordered_set>
@ -69,3 +72,5 @@ class MapBuilderBridge {
};
} // namespace cartographer_ros
#endif // CARTOGRAPHER_ROS_MAP_BUILDER_BRIDGE_H_

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@ -0,0 +1,291 @@
/*
* 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.
*/
#include "cartographer_ros/node.h"
#include <chrono>
#include <string>
#include <vector>
#include "Eigen/Core"
#include "cartographer/common/make_unique.h"
#include "cartographer/common/port.h"
#include "cartographer/common/time.h"
#include "cartographer/mapping/proto/submap_visualization.pb.h"
#include "cartographer/mapping/sparse_pose_graph.h"
#include "cartographer/sensor/point_cloud.h"
#include "cartographer/transform/rigid_transform.h"
#include "cartographer/transform/transform.h"
#include "cartographer_ros/msg_conversion.h"
#include "cartographer_ros/sensor_bridge.h"
#include "cartographer_ros/tf_bridge.h"
#include "cartographer_ros/time_conversion.h"
#include "glog/logging.h"
#include "nav_msgs/Odometry.h"
#include "ros/serialization.h"
#include "sensor_msgs/PointCloud2.h"
#include "tf2_eigen/tf2_eigen.h"
namespace cartographer_ros {
namespace carto = ::cartographer;
using carto::transform::Rigid3d;
constexpr int kInfiniteSubscriberQueueSize = 0;
constexpr int kLatestOnlyPublisherQueueSize = 1;
constexpr double kTfBufferCacheTimeInSeconds = 1e6;
// Unique default topic names. Expected to be remapped as needed.
constexpr char kLaserScanTopic[] = "scan";
constexpr char kMultiEchoLaserScanTopic[] = "echoes";
constexpr char kPointCloud2Topic[] = "points2";
constexpr char kImuTopic[] = "imu";
constexpr char kOdometryTopic[] = "odom";
constexpr char kOccupancyGridTopic[] = "map";
constexpr char kScanMatchedPointCloudTopic[] = "scan_matched_points2";
constexpr char kSubmapListTopic[] = "submap_list";
constexpr char kSubmapQueryServiceName[] = "submap_query";
constexpr char kFinishTrajectoryServiceName[] = "finish_trajectory";
Node::Node(const NodeOptions& options)
: options_(options),
tf_buffer_(::ros::Duration(kTfBufferCacheTimeInSeconds)),
tf_(tf_buffer_) {}
Node::~Node() {
{
carto::common::MutexLocker lock(&mutex_);
terminating_ = true;
}
if (occupancy_grid_thread_.joinable()) {
occupancy_grid_thread_.join();
}
}
void Node::Initialize() {
carto::common::MutexLocker lock(&mutex_);
std::unordered_set<string> expected_sensor_ids;
// For 2D SLAM, subscribe to exactly one horizontal laser.
if (options_.use_laser_scan) {
horizontal_laser_scan_subscriber_ = node_handle_.subscribe(
kLaserScanTopic, kInfiniteSubscriberQueueSize,
boost::function<void(const sensor_msgs::LaserScan::ConstPtr&)>(
[this](const sensor_msgs::LaserScan::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()->HandleLaserScanMessage(
kLaserScanTopic, msg);
}));
expected_sensor_ids.insert(kLaserScanTopic);
}
if (options_.use_multi_echo_laser_scan) {
horizontal_laser_scan_subscriber_ = node_handle_.subscribe(
kMultiEchoLaserScanTopic, kInfiniteSubscriberQueueSize,
boost::function<void(const sensor_msgs::MultiEchoLaserScan::ConstPtr&)>(
[this](const sensor_msgs::MultiEchoLaserScan::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()
->HandleMultiEchoLaserScanMessage(kMultiEchoLaserScanTopic,
msg);
}));
expected_sensor_ids.insert(kMultiEchoLaserScanTopic);
}
// For 3D SLAM, subscribe to all point clouds topics.
if (options_.num_point_clouds > 0) {
for (int i = 0; i < options_.num_point_clouds; ++i) {
string topic = kPointCloud2Topic;
if (options_.num_point_clouds > 1) {
topic += "_" + std::to_string(i + 1);
}
point_cloud_subscribers_.push_back(node_handle_.subscribe(
topic, kInfiniteSubscriberQueueSize,
boost::function<void(const sensor_msgs::PointCloud2::ConstPtr&)>(
[this, topic](const sensor_msgs::PointCloud2::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()->HandlePointCloud2Message(
topic, msg);
})));
expected_sensor_ids.insert(topic);
}
}
// For 2D SLAM, subscribe to the IMU if we expect it. For 3D SLAM, the IMU is
// required.
if (options_.map_builder_options.use_trajectory_builder_3d() ||
(options_.map_builder_options.use_trajectory_builder_2d() &&
options_.map_builder_options.trajectory_builder_2d_options()
.use_imu_data())) {
imu_subscriber_ = node_handle_.subscribe(
kImuTopic, kInfiniteSubscriberQueueSize,
boost::function<void(const sensor_msgs::Imu::ConstPtr& msg)>(
[this](const sensor_msgs::Imu::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()->HandleImuMessage(kImuTopic,
msg);
}));
expected_sensor_ids.insert(kImuTopic);
}
if (options_.use_odometry) {
odometry_subscriber_ = node_handle_.subscribe(
kOdometryTopic, kInfiniteSubscriberQueueSize,
boost::function<void(const nav_msgs::Odometry::ConstPtr&)>(
[this](const nav_msgs::Odometry::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()->HandleOdometryMessage(
kOdometryTopic, msg);
}));
expected_sensor_ids.insert(kOdometryTopic);
}
map_builder_bridge_ = carto::common::make_unique<MapBuilderBridge>(
options_, expected_sensor_ids, &tf_buffer_);
submap_list_publisher_ =
node_handle_.advertise<::cartographer_ros_msgs::SubmapList>(
kSubmapListTopic, kLatestOnlyPublisherQueueSize);
submap_query_server_ = node_handle_.advertiseService(
kSubmapQueryServiceName, &Node::HandleSubmapQuery, this);
if (options_.map_builder_options.use_trajectory_builder_2d()) {
occupancy_grid_publisher_ =
node_handle_.advertise<::nav_msgs::OccupancyGrid>(
kOccupancyGridTopic, kLatestOnlyPublisherQueueSize,
true /* latched */);
occupancy_grid_thread_ =
std::thread(&Node::SpinOccupancyGridThreadForever, this);
}
scan_matched_point_cloud_publisher_ =
node_handle_.advertise<sensor_msgs::PointCloud2>(
kScanMatchedPointCloudTopic, kLatestOnlyPublisherQueueSize);
finish_trajectory_server_ = node_handle_.advertiseService(
kFinishTrajectoryServiceName, &Node::HandleFinishTrajectory, this);
wall_timers_.push_back(node_handle_.createWallTimer(
::ros::WallDuration(options_.submap_publish_period_sec),
&Node::PublishSubmapList, this));
wall_timers_.push_back(node_handle_.createWallTimer(
::ros::WallDuration(options_.pose_publish_period_sec),
&Node::PublishPoseAndScanMatchedPointCloud, this));
}
bool Node::HandleSubmapQuery(
::cartographer_ros_msgs::SubmapQuery::Request& request,
::cartographer_ros_msgs::SubmapQuery::Response& response) {
carto::common::MutexLocker lock(&mutex_);
return map_builder_bridge_->HandleSubmapQuery(request, response);
}
bool Node::HandleFinishTrajectory(
::cartographer_ros_msgs::FinishTrajectory::Request& request,
::cartographer_ros_msgs::FinishTrajectory::Response& response) {
carto::common::MutexLocker lock(&mutex_);
return map_builder_bridge_->HandleFinishTrajectory(request, response);
}
void Node::PublishSubmapList(const ::ros::WallTimerEvent& unused_timer_event) {
carto::common::MutexLocker lock(&mutex_);
submap_list_publisher_.publish(map_builder_bridge_->GetSubmapList());
}
void Node::PublishPoseAndScanMatchedPointCloud(
const ::ros::WallTimerEvent& timer_event) {
carto::common::MutexLocker lock(&mutex_);
const carto::mapping::TrajectoryBuilder* trajectory_builder =
map_builder_bridge_->map_builder()->GetTrajectoryBuilder(
map_builder_bridge_->trajectory_id());
const carto::mapping::TrajectoryBuilder::PoseEstimate last_pose_estimate =
trajectory_builder->pose_estimate();
if (carto::common::ToUniversal(last_pose_estimate.time) < 0) {
return;
}
const Rigid3d tracking_to_local = last_pose_estimate.pose;
const Rigid3d local_to_map =
map_builder_bridge_->map_builder()
->sparse_pose_graph()
->GetLocalToGlobalTransform(*trajectory_builder->submaps());
const Rigid3d tracking_to_map = local_to_map * tracking_to_local;
geometry_msgs::TransformStamped stamped_transform;
stamped_transform.header.stamp = ToRos(last_pose_estimate.time);
// We only publish a point cloud if it has changed. It is not needed at high
// frequency, and republishing it would be computationally wasteful.
if (last_pose_estimate.time != last_scan_matched_point_cloud_time_) {
scan_matched_point_cloud_publisher_.publish(ToPointCloud2Message(
carto::common::ToUniversal(last_pose_estimate.time),
options_.tracking_frame,
carto::sensor::TransformPointCloud(
last_pose_estimate.point_cloud,
tracking_to_local.inverse().cast<float>())));
last_scan_matched_point_cloud_time_ = last_pose_estimate.time;
} else {
// If we do not publish a new point cloud, we still allow time of the
// published poses to advance.
stamped_transform.header.stamp = ros::Time::now();
}
const auto published_to_tracking =
map_builder_bridge_->tf_bridge()->LookupToTracking(
last_pose_estimate.time, options_.published_frame);
if (published_to_tracking != nullptr) {
if (options_.provide_odom_frame) {
std::vector<geometry_msgs::TransformStamped> stamped_transforms;
stamped_transform.header.frame_id = options_.map_frame;
stamped_transform.child_frame_id = options_.odom_frame;
stamped_transform.transform = ToGeometryMsgTransform(local_to_map);
stamped_transforms.push_back(stamped_transform);
stamped_transform.header.frame_id = options_.odom_frame;
stamped_transform.child_frame_id = options_.published_frame;
stamped_transform.transform =
ToGeometryMsgTransform(tracking_to_local * (*published_to_tracking));
stamped_transforms.push_back(stamped_transform);
tf_broadcaster_.sendTransform(stamped_transforms);
} else {
stamped_transform.header.frame_id = options_.map_frame;
stamped_transform.child_frame_id = options_.published_frame;
stamped_transform.transform =
ToGeometryMsgTransform(tracking_to_map * (*published_to_tracking));
tf_broadcaster_.sendTransform(stamped_transform);
}
}
}
void Node::SpinOccupancyGridThreadForever() {
for (;;) {
std::this_thread::sleep_for(std::chrono::milliseconds(1000));
{
carto::common::MutexLocker lock(&mutex_);
if (terminating_) {
return;
}
}
if (occupancy_grid_publisher_.getNumSubscribers() == 0) {
continue;
}
const auto occupancy_grid = map_builder_bridge_->BuildOccupancyGrid();
if (occupancy_grid != nullptr) {
occupancy_grid_publisher_.publish(*occupancy_grid);
}
}
}
void Node::SpinForever() { ::ros::spin(); }
} // namespace cartographer_ros

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@ -0,0 +1,94 @@
/*
* 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_ROS_NODE_H_
#define CARTOGRAPHER_ROS_NODE_H_
#include <memory>
#include <vector>
#include "cartographer/common/mutex.h"
#include "cartographer_ros/map_builder_bridge.h"
#include "cartographer_ros/node_options.h"
#include "cartographer_ros_msgs/FinishTrajectory.h"
#include "cartographer_ros_msgs/SubmapEntry.h"
#include "cartographer_ros_msgs/SubmapList.h"
#include "cartographer_ros_msgs/SubmapQuery.h"
#include "cartographer_ros_msgs/TrajectorySubmapList.h"
#include "ros/ros.h"
#include "tf2_ros/transform_broadcaster.h"
#include "tf2_ros/transform_listener.h"
namespace cartographer_ros {
// Wires up ROS topics to SLAM.
class Node {
public:
Node(const NodeOptions& options);
~Node();
Node(const Node&) = delete;
Node& operator=(const Node&) = delete;
void SpinForever();
void Initialize();
private:
bool HandleSubmapQuery(
cartographer_ros_msgs::SubmapQuery::Request& request,
cartographer_ros_msgs::SubmapQuery::Response& response);
bool HandleFinishTrajectory(
cartographer_ros_msgs::FinishTrajectory::Request& request,
cartographer_ros_msgs::FinishTrajectory::Response& response);
void PublishSubmapList(const ::ros::WallTimerEvent& timer_event);
void PublishPoseAndScanMatchedPointCloud(
const ::ros::WallTimerEvent& timer_event);
void SpinOccupancyGridThreadForever();
const NodeOptions options_;
tf2_ros::Buffer tf_buffer_;
tf2_ros::TransformListener tf_;
tf2_ros::TransformBroadcaster tf_broadcaster_;
cartographer::common::Mutex mutex_;
std::unique_ptr<MapBuilderBridge> map_builder_bridge_ GUARDED_BY(mutex_);
::ros::NodeHandle node_handle_;
::ros::Subscriber imu_subscriber_;
::ros::Subscriber horizontal_laser_scan_subscriber_;
std::vector<::ros::Subscriber> point_cloud_subscribers_;
::ros::Subscriber odometry_subscriber_;
::ros::Publisher submap_list_publisher_;
::ros::ServiceServer submap_query_server_;
::ros::Publisher scan_matched_point_cloud_publisher_;
cartographer::common::Time last_scan_matched_point_cloud_time_ =
cartographer::common::Time::min();
::ros::ServiceServer finish_trajectory_server_;
::ros::Publisher occupancy_grid_publisher_;
std::thread occupancy_grid_thread_;
bool terminating_ = false GUARDED_BY(mutex_);
// We have to keep the timer handles of ::ros::WallTimers around, otherwise
// they do not fire.
std::vector<::ros::WallTimer> wall_timers_;
};
} // namespace cartographer_ros
#endif // CARTOGRAPHER_ROS_NODE_H_

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@ -14,46 +14,15 @@
* limitations under the License.
*/
#include <chrono>
#include <map>
#include <queue>
#include <string>
#include <vector>
#include "Eigen/Core"
#include "cartographer/common/configuration_file_resolver.h"
#include "cartographer/common/lua_parameter_dictionary.h"
#include "cartographer/common/make_unique.h"
#include "cartographer/common/mutex.h"
#include "cartographer/common/port.h"
#include "cartographer/common/time.h"
#include "cartographer/mapping/map_builder.h"
#include "cartographer/mapping/proto/submap_visualization.pb.h"
#include "cartographer/mapping/sparse_pose_graph.h"
#include "cartographer/sensor/point_cloud.h"
#include "cartographer/transform/rigid_transform.h"
#include "cartographer/transform/transform.h"
#include "cartographer_ros/map_builder_bridge.h"
#include "cartographer_ros/msg_conversion.h"
#include "cartographer_ros/node_options.h"
#include "cartographer_ros/node.h"
#include "cartographer_ros/ros_log_sink.h"
#include "cartographer_ros/sensor_bridge.h"
#include "cartographer_ros/tf_bridge.h"
#include "cartographer_ros/time_conversion.h"
#include "cartographer_ros_msgs/FinishTrajectory.h"
#include "cartographer_ros_msgs/SubmapEntry.h"
#include "cartographer_ros_msgs/SubmapList.h"
#include "cartographer_ros_msgs/SubmapQuery.h"
#include "cartographer_ros_msgs/TrajectorySubmapList.h"
#include "gflags/gflags.h"
#include "glog/logging.h"
#include "nav_msgs/Odometry.h"
#include "ros/ros.h"
#include "ros/serialization.h"
#include "sensor_msgs/PointCloud2.h"
#include "tf2_eigen/tf2_eigen.h"
#include "tf2_ros/transform_broadcaster.h"
#include "tf2_ros/transform_listener.h"
DEFINE_string(configuration_directory, "",
"First directory in which configuration files are searched, "
@ -66,316 +35,13 @@ DEFINE_string(configuration_basename, "",
namespace cartographer_ros {
namespace {
namespace carto = ::cartographer;
using carto::transform::Rigid3d;
constexpr int kInfiniteSubscriberQueueSize = 0;
constexpr int kLatestOnlyPublisherQueueSize = 1;
constexpr double kTfBufferCacheTimeInSeconds = 1e6;
// Unique default topic names. Expected to be remapped as needed.
constexpr char kLaserScanTopic[] = "scan";
constexpr char kMultiEchoLaserScanTopic[] = "echoes";
constexpr char kPointCloud2Topic[] = "points2";
constexpr char kImuTopic[] = "imu";
constexpr char kOdometryTopic[] = "odom";
constexpr char kOccupancyGridTopic[] = "map";
constexpr char kScanMatchedPointCloudTopic[] = "scan_matched_points2";
constexpr char kSubmapListTopic[] = "submap_list";
constexpr char kSubmapQueryServiceName[] = "submap_query";
constexpr char kFinishTrajectoryServiceName[] = "finish_trajectory";
// Node that listens to all the sensor data that we are interested in and wires
// it up to the SLAM.
class Node {
public:
Node(const NodeOptions& options);
~Node();
Node(const Node&) = delete;
Node& operator=(const Node&) = delete;
void SpinForever();
void Initialize();
private:
bool HandleSubmapQuery(
::cartographer_ros_msgs::SubmapQuery::Request& request,
::cartographer_ros_msgs::SubmapQuery::Response& response);
bool HandleFinishTrajectory(
::cartographer_ros_msgs::FinishTrajectory::Request& request,
::cartographer_ros_msgs::FinishTrajectory::Response& response);
void PublishSubmapList(const ::ros::WallTimerEvent& timer_event);
void PublishPoseAndScanMatchedPointCloud(
const ::ros::WallTimerEvent& timer_event);
void SpinOccupancyGridThreadForever();
const NodeOptions options_;
tf2_ros::Buffer tf_buffer_;
tf2_ros::TransformListener tf_;
tf2_ros::TransformBroadcaster tf_broadcaster_;
carto::common::Mutex mutex_;
std::unique_ptr<MapBuilderBridge> map_builder_bridge_ GUARDED_BY(mutex_);
::ros::NodeHandle node_handle_;
::ros::Subscriber imu_subscriber_;
::ros::Subscriber horizontal_laser_scan_subscriber_;
std::vector<::ros::Subscriber> point_cloud_subscribers_;
::ros::Subscriber odometry_subscriber_;
::ros::Publisher submap_list_publisher_;
::ros::ServiceServer submap_query_server_;
::ros::Publisher scan_matched_point_cloud_publisher_;
carto::common::Time last_scan_matched_point_cloud_time_ =
carto::common::Time::min();
::ros::ServiceServer finish_trajectory_server_;
::ros::Publisher occupancy_grid_publisher_;
std::thread occupancy_grid_thread_;
bool terminating_ = false GUARDED_BY(mutex_);
// We have to keep the timer handles of ::ros::WallTimers around, otherwise
// they do not fire.
std::vector<::ros::WallTimer> wall_timers_;
};
Node::Node(const NodeOptions& options)
: options_(options),
tf_buffer_(::ros::Duration(kTfBufferCacheTimeInSeconds)),
tf_(tf_buffer_) {}
Node::~Node() {
{
carto::common::MutexLocker lock(&mutex_);
terminating_ = true;
}
if (occupancy_grid_thread_.joinable()) {
occupancy_grid_thread_.join();
}
}
void Node::Initialize() {
carto::common::MutexLocker lock(&mutex_);
std::unordered_set<string> expected_sensor_ids;
// For 2D SLAM, subscribe to exactly one horizontal laser.
if (options_.use_laser_scan) {
horizontal_laser_scan_subscriber_ = node_handle_.subscribe(
kLaserScanTopic, kInfiniteSubscriberQueueSize,
boost::function<void(const sensor_msgs::LaserScan::ConstPtr&)>(
[this](const sensor_msgs::LaserScan::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()->HandleLaserScanMessage(
kLaserScanTopic, msg);
}));
expected_sensor_ids.insert(kLaserScanTopic);
}
if (options_.use_multi_echo_laser_scan) {
horizontal_laser_scan_subscriber_ = node_handle_.subscribe(
kMultiEchoLaserScanTopic, kInfiniteSubscriberQueueSize,
boost::function<void(const sensor_msgs::MultiEchoLaserScan::ConstPtr&)>(
[this](const sensor_msgs::MultiEchoLaserScan::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()
->HandleMultiEchoLaserScanMessage(kMultiEchoLaserScanTopic,
msg);
}));
expected_sensor_ids.insert(kMultiEchoLaserScanTopic);
}
// For 3D SLAM, subscribe to all point clouds topics.
if (options_.num_point_clouds > 0) {
for (int i = 0; i < options_.num_point_clouds; ++i) {
string topic = kPointCloud2Topic;
if (options_.num_point_clouds > 1) {
topic += "_" + std::to_string(i + 1);
}
point_cloud_subscribers_.push_back(node_handle_.subscribe(
topic, kInfiniteSubscriberQueueSize,
boost::function<void(const sensor_msgs::PointCloud2::ConstPtr&)>(
[this, topic](const sensor_msgs::PointCloud2::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()->HandlePointCloud2Message(
topic, msg);
})));
expected_sensor_ids.insert(topic);
}
}
// For 2D SLAM, subscribe to the IMU if we expect it. For 3D SLAM, the IMU is
// required.
if (options_.map_builder_options.use_trajectory_builder_3d() ||
(options_.map_builder_options.use_trajectory_builder_2d() &&
options_.map_builder_options.trajectory_builder_2d_options()
.use_imu_data())) {
imu_subscriber_ = node_handle_.subscribe(
kImuTopic, kInfiniteSubscriberQueueSize,
boost::function<void(const sensor_msgs::Imu::ConstPtr& msg)>(
[this](const sensor_msgs::Imu::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()->HandleImuMessage(kImuTopic,
msg);
}));
expected_sensor_ids.insert(kImuTopic);
}
if (options_.use_odometry) {
odometry_subscriber_ = node_handle_.subscribe(
kOdometryTopic, kInfiniteSubscriberQueueSize,
boost::function<void(const nav_msgs::Odometry::ConstPtr&)>(
[this](const nav_msgs::Odometry::ConstPtr& msg) {
map_builder_bridge_->sensor_bridge()->HandleOdometryMessage(
kOdometryTopic, msg);
}));
expected_sensor_ids.insert(kOdometryTopic);
}
map_builder_bridge_ = carto::common::make_unique<MapBuilderBridge>(
options_, expected_sensor_ids, &tf_buffer_);
submap_list_publisher_ =
node_handle_.advertise<::cartographer_ros_msgs::SubmapList>(
kSubmapListTopic, kLatestOnlyPublisherQueueSize);
submap_query_server_ = node_handle_.advertiseService(
kSubmapQueryServiceName, &Node::HandleSubmapQuery, this);
if (options_.map_builder_options.use_trajectory_builder_2d()) {
occupancy_grid_publisher_ =
node_handle_.advertise<::nav_msgs::OccupancyGrid>(
kOccupancyGridTopic, kLatestOnlyPublisherQueueSize,
true /* latched */);
occupancy_grid_thread_ =
std::thread(&Node::SpinOccupancyGridThreadForever, this);
}
scan_matched_point_cloud_publisher_ =
node_handle_.advertise<sensor_msgs::PointCloud2>(
kScanMatchedPointCloudTopic, kLatestOnlyPublisherQueueSize);
finish_trajectory_server_ = node_handle_.advertiseService(
kFinishTrajectoryServiceName, &Node::HandleFinishTrajectory, this);
wall_timers_.push_back(node_handle_.createWallTimer(
::ros::WallDuration(options_.submap_publish_period_sec),
&Node::PublishSubmapList, this));
wall_timers_.push_back(node_handle_.createWallTimer(
::ros::WallDuration(options_.pose_publish_period_sec),
&Node::PublishPoseAndScanMatchedPointCloud, this));
}
bool Node::HandleSubmapQuery(
::cartographer_ros_msgs::SubmapQuery::Request& request,
::cartographer_ros_msgs::SubmapQuery::Response& response) {
carto::common::MutexLocker lock(&mutex_);
return map_builder_bridge_->HandleSubmapQuery(request, response);
}
bool Node::HandleFinishTrajectory(
::cartographer_ros_msgs::FinishTrajectory::Request& request,
::cartographer_ros_msgs::FinishTrajectory::Response& response) {
carto::common::MutexLocker lock(&mutex_);
return map_builder_bridge_->HandleFinishTrajectory(request, response);
}
void Node::PublishSubmapList(const ::ros::WallTimerEvent& unused_timer_event) {
carto::common::MutexLocker lock(&mutex_);
submap_list_publisher_.publish(map_builder_bridge_->GetSubmapList());
}
void Node::PublishPoseAndScanMatchedPointCloud(
const ::ros::WallTimerEvent& timer_event) {
carto::common::MutexLocker lock(&mutex_);
const carto::mapping::TrajectoryBuilder* trajectory_builder =
map_builder_bridge_->map_builder()->GetTrajectoryBuilder(
map_builder_bridge_->trajectory_id());
const carto::mapping::TrajectoryBuilder::PoseEstimate last_pose_estimate =
trajectory_builder->pose_estimate();
if (carto::common::ToUniversal(last_pose_estimate.time) < 0) {
return;
}
const Rigid3d tracking_to_local = last_pose_estimate.pose;
const Rigid3d local_to_map =
map_builder_bridge_->map_builder()
->sparse_pose_graph()
->GetLocalToGlobalTransform(*trajectory_builder->submaps());
const Rigid3d tracking_to_map = local_to_map * tracking_to_local;
geometry_msgs::TransformStamped stamped_transform;
stamped_transform.header.stamp = ToRos(last_pose_estimate.time);
// We only publish a point cloud if it has changed. It is not needed at high
// frequency, and republishing it would be computationally wasteful.
if (last_pose_estimate.time != last_scan_matched_point_cloud_time_) {
scan_matched_point_cloud_publisher_.publish(ToPointCloud2Message(
carto::common::ToUniversal(last_pose_estimate.time),
options_.tracking_frame,
carto::sensor::TransformPointCloud(
last_pose_estimate.point_cloud,
tracking_to_local.inverse().cast<float>())));
last_scan_matched_point_cloud_time_ = last_pose_estimate.time;
} else {
// If we do not publish a new point cloud, we still allow time of the
// published poses to advance.
stamped_transform.header.stamp = ros::Time::now();
}
const auto published_to_tracking =
map_builder_bridge_->tf_bridge()->LookupToTracking(
last_pose_estimate.time, options_.published_frame);
if (published_to_tracking != nullptr) {
if (options_.provide_odom_frame) {
std::vector<geometry_msgs::TransformStamped> stamped_transforms;
stamped_transform.header.frame_id = options_.map_frame;
stamped_transform.child_frame_id = options_.odom_frame;
stamped_transform.transform = ToGeometryMsgTransform(local_to_map);
stamped_transforms.push_back(stamped_transform);
stamped_transform.header.frame_id = options_.odom_frame;
stamped_transform.child_frame_id = options_.published_frame;
stamped_transform.transform =
ToGeometryMsgTransform(tracking_to_local * (*published_to_tracking));
stamped_transforms.push_back(stamped_transform);
tf_broadcaster_.sendTransform(stamped_transforms);
} else {
stamped_transform.header.frame_id = options_.map_frame;
stamped_transform.child_frame_id = options_.published_frame;
stamped_transform.transform =
ToGeometryMsgTransform(tracking_to_map * (*published_to_tracking));
tf_broadcaster_.sendTransform(stamped_transform);
}
}
}
void Node::SpinOccupancyGridThreadForever() {
for (;;) {
std::this_thread::sleep_for(std::chrono::milliseconds(1000));
{
carto::common::MutexLocker lock(&mutex_);
if (terminating_) {
return;
}
}
if (occupancy_grid_publisher_.getNumSubscribers() == 0) {
continue;
}
const auto occupancy_grid = map_builder_bridge_->BuildOccupancyGrid();
if (occupancy_grid != nullptr) {
occupancy_grid_publisher_.publish(*occupancy_grid);
}
}
}
void Node::SpinForever() { ::ros::spin(); }
void Run() {
auto file_resolver =
carto::common::make_unique<carto::common::ConfigurationFileResolver>(
auto file_resolver = cartographer::common::make_unique<
cartographer::common::ConfigurationFileResolver>(
std::vector<string>{FLAGS_configuration_directory});
const string code =
file_resolver->GetFileContentOrDie(FLAGS_configuration_basename);
carto::common::LuaParameterDictionary lua_parameter_dictionary(
cartographer::common::LuaParameterDictionary lua_parameter_dictionary(
code, std::move(file_resolver));
Node node(CreateNodeOptions(&lua_parameter_dictionary));
@ -398,7 +64,7 @@ int main(int argc, char** argv) {
::ros::init(argc, argv, "cartographer_node");
::ros::start();
::cartographer_ros::ScopedRosLogSink ros_log_sink;
::cartographer_ros::Run();
cartographer_ros::ScopedRosLogSink ros_log_sink;
cartographer_ros::Run();
::ros::shutdown();
}